diff options
Diffstat (limited to 'src/core/ext')
169 files changed, 6391 insertions, 12090 deletions
diff --git a/src/core/ext/census/README.md b/src/core/ext/census/README.md deleted file mode 100644 index a9826fe889..0000000000 --- a/src/core/ext/census/README.md +++ /dev/null @@ -1,61 +0,0 @@ -<!--- - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. ---> - -# Census - a resource measurement and tracing system - -This directory contains code for Census, which will ultimately provide the -following features for any gRPC-using system: -* A [dapper](http://research.google.com/pubs/pub36356.html)-like tracing - system, enabling tracing across a distributed infrastructure. -* RPC statistics and measurements for key metrics, such as latency, bytes - transferred, number of errors etc. -* Resource measurement framework which can be used for measuring custom - metrics. Through the use of [tags](#Tags), these can be broken down across - the entire distributed stack. -* Easy integration of the above with - [Google Cloud Trace](https://cloud.google.com/tools/cloud-trace) and - [Google Cloud Monitoring](https://cloud.google.com/monitoring/). - -## Concepts - -### Context - -### Operations - -### Tags - -### Metrics - -## API - -### Internal/RPC API - -### External/Client API - -### RPC API - -## Files in this directory - -Note that files and functions in this directory can be split into two -categories: -* Files that define core census library functions. Functions etc. in these - files are named census\_\*, and constitute the core census library - functionality. At some time in the future, these will become a standalone - library. -* Files that define functions etc. that provide a convenient interface between - grpc and the core census functionality. These files are all named - grpc\_\*.{c,h}, and define function names beginning with grpc\_census\_\*. - diff --git a/src/core/ext/census/aggregation.h b/src/core/ext/census/aggregation.h deleted file mode 100644 index 1ba7953ecc..0000000000 --- a/src/core/ext/census/aggregation.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <stddef.h> - -#ifndef GRPC_CORE_EXT_CENSUS_AGGREGATION_H -#define GRPC_CORE_EXT_CENSUS_AGGREGATION_H - -/** Structure used to describe an aggregation type. */ -struct census_aggregation_ops { - /* Create a new aggregation. The pointer returned can be used in future calls - to clone(), free(), record(), data() and reset(). */ - void *(*create)(const void *create_arg); - /* Make a copy of an aggregation created by create() */ - void *(*clone)(const void *aggregation); - /* Destroy an aggregation created by create() */ - void (*free)(void *aggregation); - /* Record a new value against aggregation. */ - void (*record)(void *aggregation, double value); - /* Return current aggregation data. The caller must cast this object into - the correct type for the aggregation result. The object returned can be - freed by using free_data(). */ - void *(*data)(const void *aggregation); - /* free data returned by data() */ - void (*free_data)(void *data); - /* Reset an aggregation to default (zero) values. */ - void (*reset)(void *aggregation); - /* Merge 'from' aggregation into 'to'. Both aggregations must be compatible */ - void (*merge)(void *to, const void *from); - /* Fill buffer with printable string version of aggregation contents. For - debugging only. Returns the number of bytes added to buffer (a value == n - implies the buffer was of insufficient size). */ - size_t (*print)(const void *aggregation, char *buffer, size_t n); -}; - -#endif /* GRPC_CORE_EXT_CENSUS_AGGREGATION_H */ diff --git a/src/core/ext/census/base_resources.cc b/src/core/ext/census/base_resources.cc deleted file mode 100644 index 3697c6f0e0..0000000000 --- a/src/core/ext/census/base_resources.cc +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/base_resources.h" - -#include <stdio.h> -#include <string.h> - -#include <grpc/census.h> -#include <grpc/support/log.h> - -#include "src/core/ext/census/resource.h" - -// Add base RPC resource definitions for use by RPC runtime. -// -// TODO(aveitch): All of these are currently hardwired definitions encoded in -// the code in this file. These should be converted to use an external -// configuration mechanism, in which these resources are defined in a text -// file, which is compiled to .pb format and read by still-to-be-written -// configuration functions. - -// Define all base resources. This should be called by census initialization. -void define_base_resources() { - google_census_Resource_BasicUnit numerator = - google_census_Resource_BasicUnit_SECS; - resource r = {(char *)"client_rpc_latency", // name - (char *)"Client RPC latency in seconds", // description - 0, // prefix - 1, // n_numerators - &numerator, // numerators - 0, // n_denominators - NULL}; // denominators - define_resource(&r); - r = {(char *)"server_rpc_latency", // name - (char *)"Server RPC latency in seconds", // description - 0, // prefix - 1, // n_numerators - &numerator, // numerators - 0, // n_denominators - NULL}; // denominators - define_resource(&r); -} diff --git a/src/core/ext/census/base_resources.h b/src/core/ext/census/base_resources.h deleted file mode 100644 index d24923b597..0000000000 --- a/src/core/ext/census/base_resources.h +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_BASE_RESOURCES_H -#define GRPC_CORE_EXT_CENSUS_BASE_RESOURCES_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* Define all base resources. This should be called by census initialization. */ -void define_base_resources(); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_BASE_RESOURCES_H */ diff --git a/src/core/ext/census/census_init.cc b/src/core/ext/census/census_init.cc deleted file mode 100644 index d7f719ff8c..0000000000 --- a/src/core/ext/census/census_init.cc +++ /dev/null @@ -1,33 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/census_interface.h" - -#include <grpc/support/log.h> -#include "src/core/ext/census/census_rpc_stats.h" -#include "src/core/ext/census/census_tracing.h" - -void census_init(void) { - census_tracing_init(); - census_stats_store_init(); -} - -void census_shutdown(void) { - census_stats_store_shutdown(); - census_tracing_shutdown(); -} diff --git a/src/core/ext/census/census_interface.h b/src/core/ext/census/census_interface.h deleted file mode 100644 index 113c2b16ef..0000000000 --- a/src/core/ext/census/census_interface.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H -#define GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H - -#include <grpc/support/port_platform.h> - -/* Maximum length of an individual census trace annotation. */ -#define CENSUS_MAX_ANNOTATION_LENGTH 200 - -#ifdef __cplusplus -extern "C" { -#endif - -/* Structure of a census op id. Define as structure because 64bit integer is not - available on every platform for C89. */ -typedef struct census_op_id { - uint32_t upper; - uint32_t lower; -} census_op_id; - -typedef struct census_rpc_stats census_rpc_stats; - -/* Initializes Census library. No-op if Census is already initialized. */ -void census_init(void); - -/* Shutdown Census Library. */ -void census_shutdown(void); - -/* Annotates grpc method name on a census_op_id. The method name has the format - of <full quantified rpc service name>/<rpc function name>. Returns 0 iff - op_id and method_name are all valid. op_id is valid after its creation and - before calling census_tracing_end_op(). - - TODO(hongyu): Figure out valid characters set for service name and command - name and document requirements here.*/ -int census_add_method_tag(census_op_id op_id, const char *method_name); - -/* Annotates tracing information to a specific op_id. - Up to CENSUS_MAX_ANNOTATION_LENGTH bytes are recorded. */ -void census_tracing_print(census_op_id op_id, const char *annotation); - -/* Starts tracing for an RPC. Returns a locally unique census_op_id */ -census_op_id census_tracing_start_op(void); - -/* Ends tracing. Calling this function will invalidate the input op_id. */ -void census_tracing_end_op(census_op_id op_id); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H */ diff --git a/src/core/ext/census/census_log.cc b/src/core/ext/census/census_log.cc deleted file mode 100644 index 100047f12b..0000000000 --- a/src/core/ext/census/census_log.cc +++ /dev/null @@ -1,588 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -/* Available log space is divided up in blocks of - CENSUS_LOG_2_MAX_RECORD_SIZE bytes. A block can be in one of the - following three data structures: - - Free blocks (free_block_list) - - Blocks with unread data (dirty_block_list) - - Blocks currently attached to cores (core_local_blocks[]) - - census_log_start_write() moves a block from core_local_blocks[] to the - end of dirty_block_list when block: - - is out-of-space OR - - has an incomplete record (an incomplete record occurs when a thread calls - census_log_start_write() and is context-switched before calling - census_log_end_write() - So, blocks in dirty_block_list are ordered, from oldest to newest, by time - when block is detached from the core. - - census_log_read_next() first iterates over dirty_block_list and then - core_local_blocks[]. It moves completely read blocks from dirty_block_list - to free_block_list. Blocks in core_local_blocks[] are not freed, even when - completely read. - - If log is configured to discard old records and free_block_list is empty, - census_log_start_write() iterates over dirty_block_list to allocate a - new block. It moves the oldest available block (no pending read/write) to - core_local_blocks[]. - - core_local_block_struct is used to implement a map from core id to the block - associated with that core. This mapping is advisory. It is possible that the - block returned by this mapping is no longer associated with that core. This - mapping is updated, lazily, by census_log_start_write(). - - Locking in block struct: - - Exclusive g_log.lock must be held before calling any functions operatong on - block structs except census_log_start_write() and - census_log_end_write(). - - Writes to a block are serialized via writer_lock. - census_log_start_write() acquires this lock and - census_log_end_write() releases it. On failure to acquire the lock, - writer allocates a new block for the current core and updates - core_local_block accordingly. - - Simultaneous read and write access is allowed. Reader can safely read up to - committed bytes (bytes_committed). - - reader_lock protects the block, currently being read, from getting recycled. - start_read() acquires reader_lock and end_read() releases the lock. - - Read/write access to a block is disabled via try_disable_access(). It returns - with both writer_lock and reader_lock held. These locks are subsequently - released by enable_access() to enable access to the block. - - A note on naming: Most function/struct names are prepended by cl_ - (shorthand for census_log). Further, functions that manipulate structures - include the name of the structure, which will be passed as the first - argument. E.g. cl_block_initialize() will initialize a cl_block. -*/ -#include "src/core/ext/census/census_log.h" -#include <grpc/support/alloc.h> -#include <grpc/support/atm.h> -#include <grpc/support/cpu.h> -#include <grpc/support/log.h> -#include <grpc/support/port_platform.h> -#include <grpc/support/sync.h> -#include <grpc/support/useful.h> -#include <string.h> - -/* End of platform specific code */ - -typedef struct census_log_block_list_struct { - struct census_log_block_list_struct *next; - struct census_log_block_list_struct *prev; - struct census_log_block *block; -} cl_block_list_struct; - -typedef struct census_log_block { - /* Pointer to underlying buffer */ - char *buffer; - gpr_atm writer_lock; - gpr_atm reader_lock; - /* Keeps completely written bytes. Declared atomic because accessed - simultaneously by reader and writer. */ - gpr_atm bytes_committed; - /* Bytes already read */ - int32_t bytes_read; - /* Links for list */ - cl_block_list_struct link; -/* We want this structure to be cacheline aligned. We assume the following - sizes for the various parts on 32/64bit systems: - type 32b size 64b size - char* 4 8 - 3x gpr_atm 12 24 - int32_t 4 8 (assumes padding) - cl_block_list_struct 12 24 - TOTAL 32 64 - - Depending on the size of our cacheline and the architecture, we - selectively add char buffering to this structure. The size is checked - via assert in census_log_initialize(). */ -#if defined(GPR_ARCH_64) -#define CL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 64) -#else -#if defined(GPR_ARCH_32) -#define CL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 32) -#else -#error "Unknown architecture" -#endif -#endif -#if CL_BLOCK_PAD_SIZE > 0 - char padding[CL_BLOCK_PAD_SIZE]; -#endif -} cl_block; - -/* A list of cl_blocks, doubly-linked through cl_block::link. */ -typedef struct census_log_block_list { - int32_t count; /* Number of items in list. */ - cl_block_list_struct ht; /* head/tail of linked list. */ -} cl_block_list; - -/* Cacheline aligned block pointers to avoid false sharing. Block pointer must - be initialized via set_block(), before calling other functions */ -typedef struct census_log_core_local_block { - gpr_atm block; -/* Ensure cachline alignment: we assume sizeof(gpr_atm) == 4 or 8 */ -#if defined(GPR_ARCH_64) -#define CL_CORE_LOCAL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 8) -#else -#if defined(GPR_ARCH_32) -#define CL_CORE_LOCAL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 4) -#else -#error "Unknown architecture" -#endif -#endif -#if CL_CORE_LOCAL_BLOCK_PAD_SIZE > 0 - char padding[CL_CORE_LOCAL_BLOCK_PAD_SIZE]; -#endif -} cl_core_local_block; - -struct census_log { - int discard_old_records; - /* Number of cores (aka hardware-contexts) */ - unsigned num_cores; - /* number of CENSUS_LOG_2_MAX_RECORD_SIZE blocks in log */ - int32_t num_blocks; - cl_block *blocks; /* Block metadata. */ - cl_core_local_block *core_local_blocks; /* Keeps core to block mappings. */ - gpr_mu lock; - int initialized; /* has log been initialized? */ - /* Keeps the state of the reader iterator. A value of 0 indicates that - iterator has reached the end. census_log_init_reader() resets the - value to num_core to restart iteration. */ - uint32_t read_iterator_state; - /* Points to the block being read. If non-NULL, the block is locked for - reading (block_being_read_->reader_lock is held). */ - cl_block *block_being_read; - /* A non-zero value indicates that log is full. */ - gpr_atm is_full; - char *buffer; - cl_block_list free_block_list; - cl_block_list dirty_block_list; - gpr_atm out_of_space_count; -}; - -/* Single internal log */ -static struct census_log g_log; - -/* Functions that operate on an atomic memory location used as a lock */ - -/* Returns non-zero if lock is acquired */ -static int cl_try_lock(gpr_atm *lock) { return gpr_atm_acq_cas(lock, 0, 1); } - -static void cl_unlock(gpr_atm *lock) { gpr_atm_rel_store(lock, 0); } - -/* Functions that operate on cl_core_local_block's */ - -static void cl_core_local_block_set_block(cl_core_local_block *clb, - cl_block *block) { - gpr_atm_rel_store(&clb->block, (gpr_atm)block); -} - -static cl_block *cl_core_local_block_get_block(cl_core_local_block *clb) { - return (cl_block *)gpr_atm_acq_load(&clb->block); -} - -/* Functions that operate on cl_block_list_struct's */ - -static void cl_block_list_struct_initialize(cl_block_list_struct *bls, - cl_block *block) { - bls->next = bls->prev = bls; - bls->block = block; -} - -/* Functions that operate on cl_block_list's */ - -static void cl_block_list_initialize(cl_block_list *list) { - list->count = 0; - cl_block_list_struct_initialize(&list->ht, NULL); -} - -/* Returns head of *this, or NULL if empty. */ -static cl_block *cl_block_list_head(cl_block_list *list) { - return list->ht.next->block; -} - -/* Insert element *e after *pos. */ -static void cl_block_list_insert(cl_block_list *list, cl_block_list_struct *pos, - cl_block_list_struct *e) { - list->count++; - e->next = pos->next; - e->prev = pos; - e->next->prev = e; - e->prev->next = e; -} - -/* Insert block at the head of the list */ -static void cl_block_list_insert_at_head(cl_block_list *list, cl_block *block) { - cl_block_list_insert(list, &list->ht, &block->link); -} - -/* Insert block at the tail of the list */ -static void cl_block_list_insert_at_tail(cl_block_list *list, cl_block *block) { - cl_block_list_insert(list, list->ht.prev, &block->link); -} - -/* Removes block *b. Requires *b be in the list. */ -static void cl_block_list_remove(cl_block_list *list, cl_block *b) { - list->count--; - b->link.next->prev = b->link.prev; - b->link.prev->next = b->link.next; -} - -/* Functions that operate on cl_block's */ - -static void cl_block_initialize(cl_block *block, char *buffer) { - block->buffer = buffer; - gpr_atm_rel_store(&block->writer_lock, 0); - gpr_atm_rel_store(&block->reader_lock, 0); - gpr_atm_rel_store(&block->bytes_committed, 0); - block->bytes_read = 0; - cl_block_list_struct_initialize(&block->link, block); -} - -/* Guards against exposing partially written buffer to the reader. */ -static void cl_block_set_bytes_committed(cl_block *block, - int32_t bytes_committed) { - gpr_atm_rel_store(&block->bytes_committed, bytes_committed); -} - -static int32_t cl_block_get_bytes_committed(cl_block *block) { - return gpr_atm_acq_load(&block->bytes_committed); -} - -/* Tries to disable future read/write access to this block. Succeeds if: - - no in-progress write AND - - no in-progress read AND - - 'discard_data' set to true OR no unread data - On success, clears the block state and returns with writer_lock_ and - reader_lock_ held. These locks are released by a subsequent - cl_block_access_enable() call. */ -static int cl_block_try_disable_access(cl_block *block, int discard_data) { - if (!cl_try_lock(&block->writer_lock)) { - return 0; - } - if (!cl_try_lock(&block->reader_lock)) { - cl_unlock(&block->writer_lock); - return 0; - } - if (!discard_data && - (block->bytes_read != cl_block_get_bytes_committed(block))) { - cl_unlock(&block->reader_lock); - cl_unlock(&block->writer_lock); - return 0; - } - cl_block_set_bytes_committed(block, 0); - block->bytes_read = 0; - return 1; -} - -static void cl_block_enable_access(cl_block *block) { - cl_unlock(&block->reader_lock); - cl_unlock(&block->writer_lock); -} - -/* Returns with writer_lock held. */ -static void *cl_block_start_write(cl_block *block, size_t size) { - int32_t bytes_committed; - if (!cl_try_lock(&block->writer_lock)) { - return NULL; - } - bytes_committed = cl_block_get_bytes_committed(block); - if (bytes_committed + size > CENSUS_LOG_MAX_RECORD_SIZE) { - cl_unlock(&block->writer_lock); - return NULL; - } - return block->buffer + bytes_committed; -} - -/* Releases writer_lock and increments committed bytes by 'bytes_written'. - 'bytes_written' must be <= 'size' specified in the corresponding - StartWrite() call. This function is thread-safe. */ -static void cl_block_end_write(cl_block *block, size_t bytes_written) { - cl_block_set_bytes_committed( - block, cl_block_get_bytes_committed(block) + bytes_written); - cl_unlock(&block->writer_lock); -} - -/* Returns a pointer to the first unread byte in buffer. The number of bytes - available are returned in 'bytes_available'. Acquires reader lock that is - released by a subsequent cl_block_end_read() call. Returns NULL if: - - read in progress - - no data available */ -static void *cl_block_start_read(cl_block *block, size_t *bytes_available) { - void *record; - if (!cl_try_lock(&block->reader_lock)) { - return NULL; - } - /* bytes_committed may change from under us. Use bytes_available to update - bytes_read below. */ - *bytes_available = cl_block_get_bytes_committed(block) - block->bytes_read; - if (*bytes_available == 0) { - cl_unlock(&block->reader_lock); - return NULL; - } - record = block->buffer + block->bytes_read; - block->bytes_read += *bytes_available; - return record; -} - -static void cl_block_end_read(cl_block *block) { - cl_unlock(&block->reader_lock); -} - -/* Internal functions operating on g_log */ - -/* Allocates a new free block (or recycles an available dirty block if log is - configured to discard old records). Returns NULL if out-of-space. */ -static cl_block *cl_allocate_block(void) { - cl_block *block = cl_block_list_head(&g_log.free_block_list); - if (block != NULL) { - cl_block_list_remove(&g_log.free_block_list, block); - return block; - } - if (!g_log.discard_old_records) { - /* No free block and log is configured to keep old records. */ - return NULL; - } - /* Recycle dirty block. Start from the oldest. */ - for (block = cl_block_list_head(&g_log.dirty_block_list); block != NULL; - block = block->link.next->block) { - if (cl_block_try_disable_access(block, 1 /* discard data */)) { - cl_block_list_remove(&g_log.dirty_block_list, block); - return block; - } - } - return NULL; -} - -/* Allocates a new block and updates core id => block mapping. 'old_block' - points to the block that the caller thinks is attached to - 'core_id'. 'old_block' may be NULL. Returns non-zero if: - - allocated a new block OR - - 'core_id' => 'old_block' mapping changed (another thread allocated a - block before lock was acquired). */ -static int cl_allocate_core_local_block(int32_t core_id, cl_block *old_block) { - /* Now that we have the lock, check if core-local mapping has changed. */ - cl_core_local_block *core_local_block = &g_log.core_local_blocks[core_id]; - cl_block *block = cl_core_local_block_get_block(core_local_block); - if ((block != NULL) && (block != old_block)) { - return 1; - } - if (block != NULL) { - cl_core_local_block_set_block(core_local_block, NULL); - cl_block_list_insert_at_tail(&g_log.dirty_block_list, block); - } - block = cl_allocate_block(); - if (block == NULL) { - gpr_atm_rel_store(&g_log.is_full, 1); - return 0; - } - cl_core_local_block_set_block(core_local_block, block); - cl_block_enable_access(block); - return 1; -} - -static cl_block *cl_get_block(void *record) { - uintptr_t p = (uintptr_t)((char *)record - g_log.buffer); - uintptr_t index = p >> CENSUS_LOG_2_MAX_RECORD_SIZE; - return &g_log.blocks[index]; -} - -/* Gets the next block to read and tries to free 'prev' block (if not NULL). - Returns NULL if reached the end. */ -static cl_block *cl_next_block_to_read(cl_block *prev) { - cl_block *block = NULL; - if (g_log.read_iterator_state == g_log.num_cores) { - /* We are traversing dirty list; find the next dirty block. */ - if (prev != NULL) { - /* Try to free the previous block if there is no unread data. This block - may have unread data if previously incomplete record completed between - read_next() calls. */ - block = prev->link.next->block; - if (cl_block_try_disable_access(prev, 0 /* do not discard data */)) { - cl_block_list_remove(&g_log.dirty_block_list, prev); - cl_block_list_insert_at_head(&g_log.free_block_list, prev); - gpr_atm_rel_store(&g_log.is_full, 0); - } - } else { - block = cl_block_list_head(&g_log.dirty_block_list); - } - if (block != NULL) { - return block; - } - /* We are done with the dirty list; moving on to core-local blocks. */ - } - while (g_log.read_iterator_state > 0) { - g_log.read_iterator_state--; - block = cl_core_local_block_get_block( - &g_log.core_local_blocks[g_log.read_iterator_state]); - if (block != NULL) { - return block; - } - } - return NULL; -} - -/* External functions: primary stats_log interface */ -void census_log_initialize(size_t size_in_mb, int discard_old_records) { - int32_t ix; - /* Check cacheline alignment. */ - GPR_ASSERT(sizeof(cl_block) % GPR_CACHELINE_SIZE == 0); - GPR_ASSERT(sizeof(cl_core_local_block) % GPR_CACHELINE_SIZE == 0); - GPR_ASSERT(!g_log.initialized); - g_log.discard_old_records = discard_old_records; - g_log.num_cores = gpr_cpu_num_cores(); - /* Ensure at least as many blocks as there are cores. */ - g_log.num_blocks = GPR_MAX( - g_log.num_cores, (size_in_mb << 20) >> CENSUS_LOG_2_MAX_RECORD_SIZE); - gpr_mu_init(&g_log.lock); - g_log.read_iterator_state = 0; - g_log.block_being_read = NULL; - gpr_atm_rel_store(&g_log.is_full, 0); - g_log.core_local_blocks = (cl_core_local_block *)gpr_malloc_aligned( - g_log.num_cores * sizeof(cl_core_local_block), GPR_CACHELINE_SIZE_LOG); - memset(g_log.core_local_blocks, 0, - g_log.num_cores * sizeof(cl_core_local_block)); - g_log.blocks = (cl_block *)gpr_malloc_aligned( - g_log.num_blocks * sizeof(cl_block), GPR_CACHELINE_SIZE_LOG); - memset(g_log.blocks, 0, g_log.num_blocks * sizeof(cl_block)); - g_log.buffer = gpr_malloc(g_log.num_blocks * CENSUS_LOG_MAX_RECORD_SIZE); - memset(g_log.buffer, 0, g_log.num_blocks * CENSUS_LOG_MAX_RECORD_SIZE); - cl_block_list_initialize(&g_log.free_block_list); - cl_block_list_initialize(&g_log.dirty_block_list); - for (ix = 0; ix < g_log.num_blocks; ++ix) { - cl_block *block = g_log.blocks + ix; - cl_block_initialize(block, - g_log.buffer + (CENSUS_LOG_MAX_RECORD_SIZE * ix)); - cl_block_try_disable_access(block, 1 /* discard data */); - cl_block_list_insert_at_tail(&g_log.free_block_list, block); - } - gpr_atm_rel_store(&g_log.out_of_space_count, 0); - g_log.initialized = 1; -} - -void census_log_shutdown(void) { - GPR_ASSERT(g_log.initialized); - gpr_mu_destroy(&g_log.lock); - gpr_free_aligned(g_log.core_local_blocks); - g_log.core_local_blocks = NULL; - gpr_free_aligned(g_log.blocks); - g_log.blocks = NULL; - gpr_free(g_log.buffer); - g_log.buffer = NULL; - g_log.initialized = 0; -} - -void *census_log_start_write(size_t size) { - /* Used to bound number of times block allocation is attempted. */ - int32_t attempts_remaining = g_log.num_blocks; - /* TODO(aveitch): move this inside the do loop when current_cpu is fixed */ - int32_t core_id = gpr_cpu_current_cpu(); - GPR_ASSERT(g_log.initialized); - if (size > CENSUS_LOG_MAX_RECORD_SIZE) { - return NULL; - } - do { - int allocated; - void *record = NULL; - cl_block *block = - cl_core_local_block_get_block(&g_log.core_local_blocks[core_id]); - if (block && (record = cl_block_start_write(block, size))) { - return record; - } - /* Need to allocate a new block. We are here if: - - No block associated with the core OR - - Write in-progress on the block OR - - block is out of space */ - if (gpr_atm_acq_load(&g_log.is_full)) { - gpr_atm_no_barrier_fetch_add(&g_log.out_of_space_count, 1); - return NULL; - } - gpr_mu_lock(&g_log.lock); - allocated = cl_allocate_core_local_block(core_id, block); - gpr_mu_unlock(&g_log.lock); - if (!allocated) { - gpr_atm_no_barrier_fetch_add(&g_log.out_of_space_count, 1); - return NULL; - } - } while (attempts_remaining--); - /* Give up. */ - gpr_atm_no_barrier_fetch_add(&g_log.out_of_space_count, 1); - return NULL; -} - -void census_log_end_write(void *record, size_t bytes_written) { - GPR_ASSERT(g_log.initialized); - cl_block_end_write(cl_get_block(record), bytes_written); -} - -void census_log_init_reader(void) { - GPR_ASSERT(g_log.initialized); - gpr_mu_lock(&g_log.lock); - /* If a block is locked for reading unlock it. */ - if (g_log.block_being_read != NULL) { - cl_block_end_read(g_log.block_being_read); - g_log.block_being_read = NULL; - } - g_log.read_iterator_state = g_log.num_cores; - gpr_mu_unlock(&g_log.lock); -} - -const void *census_log_read_next(size_t *bytes_available) { - GPR_ASSERT(g_log.initialized); - gpr_mu_lock(&g_log.lock); - if (g_log.block_being_read != NULL) { - cl_block_end_read(g_log.block_being_read); - } - do { - g_log.block_being_read = cl_next_block_to_read(g_log.block_being_read); - if (g_log.block_being_read != NULL) { - void *record = - cl_block_start_read(g_log.block_being_read, bytes_available); - if (record != NULL) { - gpr_mu_unlock(&g_log.lock); - return record; - } - } - } while (g_log.block_being_read != NULL); - gpr_mu_unlock(&g_log.lock); - return NULL; -} - -size_t census_log_remaining_space(void) { - size_t space; - GPR_ASSERT(g_log.initialized); - gpr_mu_lock(&g_log.lock); - if (g_log.discard_old_records) { - /* Remaining space is not meaningful; just return the entire log space. */ - space = g_log.num_blocks << CENSUS_LOG_2_MAX_RECORD_SIZE; - } else { - space = g_log.free_block_list.count * CENSUS_LOG_MAX_RECORD_SIZE; - } - gpr_mu_unlock(&g_log.lock); - return space; -} - -int census_log_out_of_space_count(void) { - GPR_ASSERT(g_log.initialized); - return gpr_atm_acq_load(&g_log.out_of_space_count); -} diff --git a/src/core/ext/census/census_log.h b/src/core/ext/census/census_log.h deleted file mode 100644 index ee336ae733..0000000000 --- a/src/core/ext/census/census_log.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H -#define GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H - -#include <stddef.h> - -/* Maximum record size, in bytes. */ -#define CENSUS_LOG_2_MAX_RECORD_SIZE 14 /* 2^14 = 16KB */ -#define CENSUS_LOG_MAX_RECORD_SIZE (1 << CENSUS_LOG_2_MAX_RECORD_SIZE) - -#ifdef __cplusplus -extern "C" { -#endif - -/* Initialize the statistics logging subsystem with the given log size. A log - size of 0 will result in the smallest possible log for the platform - (approximately CENSUS_LOG_MAX_RECORD_SIZE * gpr_cpu_num_cores()). If - discard_old_records is non-zero, then new records will displace older ones - when the log is full. This function must be called before any other - census_log functions. -*/ -void census_log_initialize(size_t size_in_mb, int discard_old_records); - -/* Shutdown the logging subsystem. Caller must ensure that: - - no in progress or future call to any census_log functions - - no incomplete records -*/ -void census_log_shutdown(void); - -/* Allocates and returns a 'size' bytes record and marks it in use. A - subsequent census_log_end_write() marks the record complete. The - 'bytes_written' census_log_end_write() argument must be <= - 'size'. Returns NULL if out-of-space AND: - - log is configured to keep old records OR - - all blocks are pinned by incomplete records. -*/ -void *census_log_start_write(size_t size); - -void census_log_end_write(void *record, size_t bytes_written); - -/* census_log_read_next() iterates over blocks with data and for each block - returns a pointer to the first unread byte. The number of bytes that can be - read are returned in 'bytes_available'. Reader is expected to read all - available data. Reading the data consumes it i.e. it cannot be read again. - census_log_read_next() returns NULL if the end is reached i.e last block - is read. census_log_init_reader() starts the iteration or aborts the - current iteration. -*/ -void census_log_init_reader(void); -const void *census_log_read_next(size_t *bytes_available); - -/* Returns estimated remaining space across all blocks, in bytes. If log is - configured to discard old records, returns total log space. Otherwise, - returns space available in empty blocks (partially filled blocks are - treated as full). -*/ -size_t census_log_remaining_space(void); - -/* Returns the number of times grpc_stats_log_start_write() failed due to - out-of-space. */ -int census_log_out_of_space_count(void); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H */ diff --git a/src/core/ext/census/census_rpc_stats.cc b/src/core/ext/census/census_rpc_stats.cc deleted file mode 100644 index 0aca1f109e..0000000000 --- a/src/core/ext/census/census_rpc_stats.cc +++ /dev/null @@ -1,238 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <string.h> - -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/sync.h> -#include "src/core/ext/census/census_interface.h" -#include "src/core/ext/census/census_rpc_stats.h" -#include "src/core/ext/census/census_tracing.h" -#include "src/core/ext/census/hash_table.h" -#include "src/core/ext/census/window_stats.h" -#include "src/core/lib/support/murmur_hash.h" -#include "src/core/lib/support/string.h" - -#define NUM_INTERVALS 3 -#define MINUTE_INTERVAL 0 -#define HOUR_INTERVAL 1 -#define TOTAL_INTERVAL 2 - -/* for easier typing */ -typedef census_per_method_rpc_stats per_method_stats; - -/* Ensure mu is only initialized once. */ -static gpr_once g_stats_store_mu_init = GPR_ONCE_INIT; -/* Guards two stats stores. */ -static gpr_mu g_mu; -static census_ht *g_client_stats_store = NULL; -static census_ht *g_server_stats_store = NULL; - -static void init_mutex(void) { gpr_mu_init(&g_mu); } - -static void init_mutex_once(void) { - gpr_once_init(&g_stats_store_mu_init, init_mutex); -} - -static int cmp_str_keys(const void *k1, const void *k2) { - return strcmp((const char *)k1, (const char *)k2); -} - -/* TODO(hongyu): replace it with cityhash64 */ -static uint64_t simple_hash(const void *k) { - size_t len = strlen(k); - uint64_t higher = gpr_murmur_hash3((const char *)k, len / 2, 0); - return higher << 32 | - gpr_murmur_hash3((const char *)k + len / 2, len - len / 2, 0); -} - -static void delete_stats(void *stats) { - census_window_stats_destroy((struct census_window_stats *)stats); -} - -static void delete_key(void *key) { gpr_free(key); } - -static const census_ht_option ht_opt = { - CENSUS_HT_POINTER /* key type */, 1999 /* n_of_buckets */, - simple_hash /* hash function */, cmp_str_keys /* key comparator */, - delete_stats /* data deleter */, delete_key /* key deleter */ -}; - -static void init_rpc_stats(void *stats) { - memset(stats, 0, sizeof(census_rpc_stats)); -} - -static void stat_add_proportion(double p, void *base, const void *addme) { - census_rpc_stats *b = (census_rpc_stats *)base; - census_rpc_stats *a = (census_rpc_stats *)addme; - b->cnt += p * a->cnt; - b->rpc_error_cnt += p * a->rpc_error_cnt; - b->app_error_cnt += p * a->app_error_cnt; - b->elapsed_time_ms += p * a->elapsed_time_ms; - b->api_request_bytes += p * a->api_request_bytes; - b->wire_request_bytes += p * a->wire_request_bytes; - b->api_response_bytes += p * a->api_response_bytes; - b->wire_response_bytes += p * a->wire_response_bytes; -} - -static void stat_add(void *base, const void *addme) { - stat_add_proportion(1.0, base, addme); -} - -static gpr_timespec min_hour_total_intervals[3] = { - {60, 0}, {3600, 0}, {36000000, 0}}; - -static const census_window_stats_stat_info window_stats_settings = { - sizeof(census_rpc_stats), init_rpc_stats, stat_add, stat_add_proportion}; - -census_rpc_stats *census_rpc_stats_create_empty(void) { - census_rpc_stats *ret = - (census_rpc_stats *)gpr_malloc(sizeof(census_rpc_stats)); - memset(ret, 0, sizeof(census_rpc_stats)); - return ret; -} - -void census_aggregated_rpc_stats_set_empty(census_aggregated_rpc_stats *data) { - int i = 0; - for (i = 0; i < data->num_entries; i++) { - if (data->stats[i].method != NULL) { - gpr_free((void *)data->stats[i].method); - } - } - if (data->stats != NULL) { - gpr_free(data->stats); - } - data->num_entries = 0; - data->stats = NULL; -} - -static void record_stats(census_ht *store, census_op_id op_id, - const census_rpc_stats *stats) { - gpr_mu_lock(&g_mu); - if (store != NULL) { - census_trace_obj *trace = NULL; - census_internal_lock_trace_store(); - trace = census_get_trace_obj_locked(op_id); - if (trace != NULL) { - const char *method_name = census_get_trace_method_name(trace); - struct census_window_stats *window_stats = NULL; - census_ht_key key; - key.ptr = (void *)method_name; - window_stats = census_ht_find(store, key); - census_internal_unlock_trace_store(); - if (window_stats == NULL) { - window_stats = census_window_stats_create(3, min_hour_total_intervals, - 30, &window_stats_settings); - key.ptr = gpr_strdup(key.ptr); - census_ht_insert(store, key, (void *)window_stats); - } - census_window_stats_add(window_stats, gpr_now(GPR_CLOCK_REALTIME), stats); - } else { - census_internal_unlock_trace_store(); - } - } - gpr_mu_unlock(&g_mu); -} - -void census_record_rpc_client_stats(census_op_id op_id, - const census_rpc_stats *stats) { - record_stats(g_client_stats_store, op_id, stats); -} - -void census_record_rpc_server_stats(census_op_id op_id, - const census_rpc_stats *stats) { - record_stats(g_server_stats_store, op_id, stats); -} - -/* Get stats from input stats store */ -static void get_stats(census_ht *store, census_aggregated_rpc_stats *data) { - GPR_ASSERT(data != NULL); - if (data->num_entries != 0) { - census_aggregated_rpc_stats_set_empty(data); - } - gpr_mu_lock(&g_mu); - if (store != NULL) { - size_t n; - unsigned i, j; - gpr_timespec now = gpr_now(GPR_CLOCK_REALTIME); - census_ht_kv *kv = census_ht_get_all_elements(store, &n); - if (kv != NULL) { - data->num_entries = n; - data->stats = - (per_method_stats *)gpr_malloc(sizeof(per_method_stats) * n); - for (i = 0; i < n; i++) { - census_window_stats_sums sums[NUM_INTERVALS]; - for (j = 0; j < NUM_INTERVALS; j++) { - sums[j].statistic = (void *)census_rpc_stats_create_empty(); - } - data->stats[i].method = gpr_strdup(kv[i].k.ptr); - census_window_stats_get_sums(kv[i].v, now, sums); - data->stats[i].minute_stats = - *(census_rpc_stats *)sums[MINUTE_INTERVAL].statistic; - data->stats[i].hour_stats = - *(census_rpc_stats *)sums[HOUR_INTERVAL].statistic; - data->stats[i].total_stats = - *(census_rpc_stats *)sums[TOTAL_INTERVAL].statistic; - for (j = 0; j < NUM_INTERVALS; j++) { - gpr_free(sums[j].statistic); - } - } - gpr_free(kv); - } - } - gpr_mu_unlock(&g_mu); -} - -void census_get_client_stats(census_aggregated_rpc_stats *data) { - get_stats(g_client_stats_store, data); -} - -void census_get_server_stats(census_aggregated_rpc_stats *data) { - get_stats(g_server_stats_store, data); -} - -void census_stats_store_init(void) { - init_mutex_once(); - gpr_mu_lock(&g_mu); - if (g_client_stats_store == NULL && g_server_stats_store == NULL) { - g_client_stats_store = census_ht_create(&ht_opt); - g_server_stats_store = census_ht_create(&ht_opt); - } else { - gpr_log(GPR_ERROR, "Census stats store already initialized."); - } - gpr_mu_unlock(&g_mu); -} - -void census_stats_store_shutdown(void) { - init_mutex_once(); - gpr_mu_lock(&g_mu); - if (g_client_stats_store != NULL) { - census_ht_destroy(g_client_stats_store); - g_client_stats_store = NULL; - } else { - gpr_log(GPR_ERROR, "Census server stats store not initialized."); - } - if (g_server_stats_store != NULL) { - census_ht_destroy(g_server_stats_store); - g_server_stats_store = NULL; - } else { - gpr_log(GPR_ERROR, "Census client stats store not initialized."); - } - gpr_mu_unlock(&g_mu); -} diff --git a/src/core/ext/census/census_rpc_stats.h b/src/core/ext/census/census_rpc_stats.h deleted file mode 100644 index 8004ade37d..0000000000 --- a/src/core/ext/census/census_rpc_stats.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H -#define GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H - -#include <grpc/support/port_platform.h> -#include "src/core/ext/census/census_interface.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct census_rpc_stats { - uint64_t cnt; - uint64_t rpc_error_cnt; - uint64_t app_error_cnt; - double elapsed_time_ms; - double api_request_bytes; - double wire_request_bytes; - double api_response_bytes; - double wire_response_bytes; -}; - -/* Creates an empty rpc stats object on heap. */ -census_rpc_stats *census_rpc_stats_create_empty(void); - -typedef struct census_per_method_rpc_stats { - const char *method; - census_rpc_stats minute_stats; /* cumulative stats in the past minute */ - census_rpc_stats hour_stats; /* cumulative stats in the past hour */ - census_rpc_stats total_stats; /* cumulative stats from last gc */ -} census_per_method_rpc_stats; - -typedef struct census_aggregated_rpc_stats { - int num_entries; - census_per_method_rpc_stats *stats; -} census_aggregated_rpc_stats; - -/* Initializes an aggregated rpc stats object to an empty state. */ -void census_aggregated_rpc_stats_set_empty(census_aggregated_rpc_stats *data); - -/* Records client side stats of a rpc. */ -void census_record_rpc_client_stats(census_op_id op_id, - const census_rpc_stats *stats); - -/* Records server side stats of a rpc. */ -void census_record_rpc_server_stats(census_op_id op_id, - const census_rpc_stats *stats); - -/* The following two functions are intended for inprocess query of - per-service per-method stats from grpc implementations. */ - -/* Populates *data_map with server side aggregated per-service per-method - stats. - DO NOT CALL from outside of grpc code. */ -void census_get_server_stats(census_aggregated_rpc_stats *data_map); - -/* Populates *data_map with client side aggregated per-service per-method - stats. - DO NOT CALL from outside of grpc code. */ -void census_get_client_stats(census_aggregated_rpc_stats *data_map); - -void census_stats_store_init(void); -void census_stats_store_shutdown(void); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H */ diff --git a/src/core/ext/census/census_tracing.cc b/src/core/ext/census/census_tracing.cc deleted file mode 100644 index 199b260dd1..0000000000 --- a/src/core/ext/census/census_tracing.cc +++ /dev/null @@ -1,226 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/census_tracing.h" -#include "src/core/ext/census/census_interface.h" - -#include <stdio.h> -#include <string.h> - -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/port_platform.h> -#include <grpc/support/sync.h> -#include "src/core/ext/census/hash_table.h" -#include "src/core/lib/support/string.h" - -void census_trace_obj_destroy(census_trace_obj *obj) { - census_trace_annotation *p = obj->annotations; - while (p != NULL) { - census_trace_annotation *next = p->next; - gpr_free(p); - p = next; - } - gpr_free(obj->method); - gpr_free(obj); -} - -static void delete_trace_obj(void *obj) { - census_trace_obj_destroy((census_trace_obj *)obj); -} - -static const census_ht_option ht_opt = { - CENSUS_HT_UINT64 /* key type */, - 571 /* n_of_buckets */, - NULL /* hash */, - NULL /* compare_keys */, - delete_trace_obj /* delete data */, - NULL /* delete key */ -}; - -static gpr_once g_init_mutex_once = GPR_ONCE_INIT; -static gpr_mu g_mu; /* Guards following two static variables. */ -static census_ht *g_trace_store = NULL; -static uint64_t g_id = 0; - -static census_ht_key op_id_as_key(census_op_id *id) { - return *(census_ht_key *)id; -} - -static uint64_t op_id_2_uint64(census_op_id *id) { - uint64_t ret; - memcpy(&ret, id, sizeof(census_op_id)); - return ret; -} - -static void init_mutex(void) { gpr_mu_init(&g_mu); } - -static void init_mutex_once(void) { - gpr_once_init(&g_init_mutex_once, init_mutex); -} - -census_op_id census_tracing_start_op(void) { - gpr_mu_lock(&g_mu); - { - census_trace_obj *ret = gpr_malloc(sizeof(census_trace_obj)); - memset(ret, 0, sizeof(census_trace_obj)); - g_id++; - memcpy(&ret->id, &g_id, sizeof(census_op_id)); - ret->rpc_stats.cnt = 1; - ret->ts = gpr_now(GPR_CLOCK_REALTIME); - census_ht_insert(g_trace_store, op_id_as_key(&ret->id), (void *)ret); - gpr_log(GPR_DEBUG, "Start tracing for id %lu", g_id); - gpr_mu_unlock(&g_mu); - return ret->id; - } -} - -int census_add_method_tag(census_op_id op_id, const char *method) { - int ret = 0; - census_trace_obj *trace = NULL; - gpr_mu_lock(&g_mu); - trace = census_ht_find(g_trace_store, op_id_as_key(&op_id)); - if (trace == NULL) { - ret = 1; - } else { - trace->method = gpr_strdup(method); - } - gpr_mu_unlock(&g_mu); - return ret; -} - -void census_tracing_print(census_op_id op_id, const char *anno_txt) { - census_trace_obj *trace = NULL; - gpr_mu_lock(&g_mu); - trace = census_ht_find(g_trace_store, op_id_as_key(&op_id)); - if (trace != NULL) { - census_trace_annotation *anno = gpr_malloc(sizeof(census_trace_annotation)); - anno->ts = gpr_now(GPR_CLOCK_REALTIME); - { - char *d = anno->txt; - const char *s = anno_txt; - int n = 0; - for (; n < CENSUS_MAX_ANNOTATION_LENGTH && *s != '\0'; ++n) { - *d++ = *s++; - } - *d = '\0'; - } - anno->next = trace->annotations; - trace->annotations = anno; - } - gpr_mu_unlock(&g_mu); -} - -void census_tracing_end_op(census_op_id op_id) { - census_trace_obj *trace = NULL; - gpr_mu_lock(&g_mu); - trace = census_ht_find(g_trace_store, op_id_as_key(&op_id)); - if (trace != NULL) { - trace->rpc_stats.elapsed_time_ms = gpr_timespec_to_micros( - gpr_time_sub(gpr_now(GPR_CLOCK_REALTIME), trace->ts)); - gpr_log(GPR_DEBUG, "End tracing for id %lu, method %s, latency %f us", - op_id_2_uint64(&op_id), trace->method, - trace->rpc_stats.elapsed_time_ms); - census_ht_erase(g_trace_store, op_id_as_key(&op_id)); - } - gpr_mu_unlock(&g_mu); -} - -void census_tracing_init(void) { - init_mutex_once(); - gpr_mu_lock(&g_mu); - if (g_trace_store == NULL) { - g_id = 1; - g_trace_store = census_ht_create(&ht_opt); - } else { - gpr_log(GPR_ERROR, "Census trace store already initialized."); - } - gpr_mu_unlock(&g_mu); -} - -void census_tracing_shutdown(void) { - gpr_mu_lock(&g_mu); - if (g_trace_store != NULL) { - census_ht_destroy(g_trace_store); - g_trace_store = NULL; - } else { - gpr_log(GPR_ERROR, "Census trace store is not initialized."); - } - gpr_mu_unlock(&g_mu); -} - -void census_internal_lock_trace_store(void) { gpr_mu_lock(&g_mu); } - -void census_internal_unlock_trace_store(void) { gpr_mu_unlock(&g_mu); } - -census_trace_obj *census_get_trace_obj_locked(census_op_id op_id) { - if (g_trace_store == NULL) { - gpr_log(GPR_ERROR, "Census trace store is not initialized."); - return NULL; - } - return (census_trace_obj *)census_ht_find(g_trace_store, - op_id_as_key(&op_id)); -} - -const char *census_get_trace_method_name(const census_trace_obj *trace) { - return trace->method; -} - -static census_trace_annotation *dup_annotation_chain( - census_trace_annotation *from) { - census_trace_annotation *ret = NULL; - census_trace_annotation **to = &ret; - for (; from != NULL; from = from->next) { - *to = gpr_malloc(sizeof(census_trace_annotation)); - memcpy(*to, from, sizeof(census_trace_annotation)); - to = &(*to)->next; - } - return ret; -} - -static census_trace_obj *trace_obj_dup(census_trace_obj *from) { - census_trace_obj *to = NULL; - GPR_ASSERT(from != NULL); - to = gpr_malloc(sizeof(census_trace_obj)); - to->id = from->id; - to->ts = from->ts; - to->rpc_stats = from->rpc_stats; - to->method = gpr_strdup(from->method); - to->annotations = dup_annotation_chain(from->annotations); - return to; -} - -census_trace_obj **census_get_active_ops(int *num_active_ops) { - census_trace_obj **ret = NULL; - gpr_mu_lock(&g_mu); - if (g_trace_store != NULL) { - size_t n = 0; - census_ht_kv *all_kvs = census_ht_get_all_elements(g_trace_store, &n); - *num_active_ops = (int)n; - if (n != 0) { - size_t i = 0; - ret = gpr_malloc(sizeof(census_trace_obj *) * n); - for (i = 0; i < n; i++) { - ret[i] = trace_obj_dup((census_trace_obj *)all_kvs[i].v); - } - } - gpr_free(all_kvs); - } - gpr_mu_unlock(&g_mu); - return ret; -} diff --git a/src/core/ext/census/census_tracing.h b/src/core/ext/census/census_tracing.h deleted file mode 100644 index ccb767fcd0..0000000000 --- a/src/core/ext/census/census_tracing.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H -#define GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H - -#include <grpc/support/time.h> -#include "src/core/ext/census/census_rpc_stats.h" - -/* WARNING: The data structures and APIs provided by this file are for GRPC - library's internal use ONLY. They might be changed in backward-incompatible - ways and are not subject to any deprecation policy. - They are not recommended for external use. - */ -#ifdef __cplusplus -extern "C" { -#endif - -/* Struct for a trace annotation. */ -typedef struct census_trace_annotation { - gpr_timespec ts; /* timestamp of the annotation */ - char txt[CENSUS_MAX_ANNOTATION_LENGTH + 1]; /* actual txt annotation */ - struct census_trace_annotation *next; -} census_trace_annotation; - -typedef struct census_trace_obj { - census_op_id id; - gpr_timespec ts; - census_rpc_stats rpc_stats; - char *method; - census_trace_annotation *annotations; -} census_trace_obj; - -/* Deletes trace object. */ -void census_trace_obj_destroy(census_trace_obj *obj); - -/* Initializes trace store. This function is thread safe. */ -void census_tracing_init(void); - -/* Shutsdown trace store. This function is thread safe. */ -void census_tracing_shutdown(void); - -/* Gets trace obj corresponding to the input op_id. Returns NULL if trace store - is not initialized or trace obj is not found. Requires trace store being - locked before calling this function. */ -census_trace_obj *census_get_trace_obj_locked(census_op_id op_id); - -/* The following two functions acquire and release the trace store global lock. - They are for census internal use only. */ -void census_internal_lock_trace_store(void); -void census_internal_unlock_trace_store(void); - -/* Gets method name associated with the input trace object. */ -const char *census_get_trace_method_name(const census_trace_obj *trace); - -/* Returns an array of pointers to trace objects of currently active operations - and fills in number of active operations. Returns NULL if there are no active - operations. - Caller owns the returned objects. */ -census_trace_obj **census_get_active_ops(int *num_active_ops); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H */ diff --git a/src/core/ext/census/context.cc b/src/core/ext/census/context.cc deleted file mode 100644 index 9b25a32e36..0000000000 --- a/src/core/ext/census/context.cc +++ /dev/null @@ -1,496 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <grpc/census.h> -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/port_platform.h> -#include <grpc/support/useful.h> -#include <stdbool.h> -#include <string.h> -#include "src/core/lib/support/string.h" - -// Functions in this file support the public context API, including -// encoding/decoding as part of context propagation across RPC's. The overall -// requirements (in approximate priority order) for the -// context representation: -// 1. Efficient conversion to/from wire format -// 2. Minimal bytes used on-wire -// 3. Efficient context creation -// 4. Efficient lookup of tag value for a key -// 5. Efficient iteration over tags -// 6. Minimal memory footprint -// -// Notes on tradeoffs/decisions: -// * tag includes 1 byte length of key, as well as nil-terminating byte. These -// are to aid in efficient parsing and the ability to directly return key -// strings. This is more important than saving a single byte/tag on the wire. -// * The wire encoding uses only single byte values. This eliminates the need -// to handle endian-ness conversions. It also means there is a hard upper -// limit of 255 for both CENSUS_MAX_TAG_KV_LEN and CENSUS_MAX_PROPAGATED_TAGS. -// * Keep all tag information (keys/values/flags) in a single memory buffer, -// that can be directly copied to the wire. - -// min and max valid chars in tag keys and values. All printable ASCII is OK. -#define MIN_VALID_TAG_CHAR 32 // ' ' -#define MAX_VALID_TAG_CHAR 126 // '~' - -// Structure representing a set of tags. Essentially a count of number of tags -// present, and pointer to a chunk of memory that contains the per-tag details. -struct tag_set { - int ntags; // number of tags. - int ntags_alloc; // ntags + number of deleted tags (total number of tags - // in all of kvm). This will always be == ntags, except during the process - // of building a new tag set. - size_t kvm_size; // number of bytes allocated for key/value storage. - size_t kvm_used; // number of bytes of used key/value memory - char *kvm; // key/value memory. Consists of repeated entries of: - // Offset Size Description - // 0 1 Key length, including trailing 0. (K) - // 1 1 Value length, including trailing 0 (V) - // 2 1 Flags - // 3 K Key bytes - // 3 + K V Value bytes - // - // We refer to the first 3 entries as the 'tag header'. If extra values are - // introduced in the header, you will need to modify the TAG_HEADER_SIZE - // constant, the raw_tag structure (and everything that uses it) and the - // encode/decode functions appropriately. -}; - -// Number of bytes in tag header. -#define TAG_HEADER_SIZE 3 // key length (1) + value length (1) + flags (1) -// Offsets to tag header entries. -#define KEY_LEN_OFFSET 0 -#define VALUE_LEN_OFFSET 1 -#define FLAG_OFFSET 2 - -// raw_tag represents the raw-storage form of a tag in the kvm of a tag_set. -struct raw_tag { - uint8_t key_len; - uint8_t value_len; - uint8_t flags; - char *key; - char *value; -}; - -// Use a reserved flag bit for indication of deleted tag. -#define CENSUS_TAG_DELETED CENSUS_TAG_RESERVED -#define CENSUS_TAG_IS_DELETED(flags) (flags & CENSUS_TAG_DELETED) - -// Primary representation of a context. Composed of 2 underlying tag_set -// structs, one each for propagated and local (non-propagated) tags. This is -// to efficiently support tag encoding/decoding. -// TODO(aveitch): need to add tracing id's/structure. -struct census_context { - struct tag_set tags[2]; - census_context_status status; -}; - -// Indices into the tags member of census_context -#define PROPAGATED_TAGS 0 -#define LOCAL_TAGS 1 - -// Validate (check all characters are in range and size is less than limit) a -// key or value string. Returns 0 if the string is invalid, or the length -// (including terminator) if valid. -static size_t validate_tag(const char *kv) { - size_t len = 1; - char ch; - while ((ch = *kv++) != 0) { - if (ch < MIN_VALID_TAG_CHAR || ch > MAX_VALID_TAG_CHAR) { - return 0; - } - len++; - } - if (len > CENSUS_MAX_TAG_KV_LEN) { - return 0; - } - return len; -} - -// Extract a raw tag given a pointer (raw) to the tag header. Allow for some -// extra bytes in the tag header (see encode/decode functions for usage: this -// allows for future expansion of the tag header). -static char *decode_tag(struct raw_tag *tag, char *header, int offset) { - tag->key_len = (uint8_t)(*header++); - tag->value_len = (uint8_t)(*header++); - tag->flags = (uint8_t)(*header++); - header += offset; - tag->key = header; - header += tag->key_len; - tag->value = header; - return header + tag->value_len; -} - -// Make a copy (in 'to') of an existing tag_set. -static void tag_set_copy(struct tag_set *to, const struct tag_set *from) { - memcpy(to, from, sizeof(struct tag_set)); - to->kvm = (char *)gpr_malloc(to->kvm_size); - memcpy(to->kvm, from->kvm, from->kvm_used); -} - -// Delete a tag from a tag_set, if it exists (returns true if it did). -static bool tag_set_delete_tag(struct tag_set *tags, const char *key, - size_t key_len) { - char *kvp = tags->kvm; - for (int i = 0; i < tags->ntags_alloc; i++) { - uint8_t *flags = (uint8_t *)(kvp + FLAG_OFFSET); - struct raw_tag tag; - kvp = decode_tag(&tag, kvp, 0); - if (CENSUS_TAG_IS_DELETED(tag.flags)) continue; - if ((key_len == tag.key_len) && (memcmp(key, tag.key, key_len) == 0)) { - *flags |= CENSUS_TAG_DELETED; - tags->ntags--; - return true; - } - } - return false; -} - -// Delete a tag from a context, return true if it existed. -static bool context_delete_tag(census_context *context, const census_tag *tag, - size_t key_len) { - return ( - tag_set_delete_tag(&context->tags[LOCAL_TAGS], tag->key, key_len) || - tag_set_delete_tag(&context->tags[PROPAGATED_TAGS], tag->key, key_len)); -} - -// Add a tag to a tag_set. Return true on success, false if the tag could -// not be added because of constraints on tag set size. This function should -// not be called if the tag may already exist (in a non-deleted state) in -// the tag_set, as that would result in two tags with the same key. -static bool tag_set_add_tag(struct tag_set *tags, const census_tag *tag, - size_t key_len, size_t value_len) { - if (tags->ntags == CENSUS_MAX_PROPAGATED_TAGS) { - return false; - } - const size_t tag_size = key_len + value_len + TAG_HEADER_SIZE; - if (tags->kvm_used + tag_size > tags->kvm_size) { - // allocate new memory if needed - tags->kvm_size += 2 * CENSUS_MAX_TAG_KV_LEN + TAG_HEADER_SIZE; - char *new_kvm = (char *)gpr_malloc(tags->kvm_size); - if (tags->kvm_used > 0) memcpy(new_kvm, tags->kvm, tags->kvm_used); - gpr_free(tags->kvm); - tags->kvm = new_kvm; - } - char *kvp = tags->kvm + tags->kvm_used; - *kvp++ = (char)key_len; - *kvp++ = (char)value_len; - // ensure reserved flags are not used. - *kvp++ = (char)(tag->flags & (CENSUS_TAG_PROPAGATE | CENSUS_TAG_STATS)); - memcpy(kvp, tag->key, key_len); - kvp += key_len; - memcpy(kvp, tag->value, value_len); - tags->kvm_used += tag_size; - tags->ntags++; - tags->ntags_alloc++; - return true; -} - -// Add/modify/delete a tag to/in a context. Caller must validate that tag key -// etc. are valid. -static void context_modify_tag(census_context *context, const census_tag *tag, - size_t key_len, size_t value_len) { - // First delete the tag if it is already present. - bool deleted = context_delete_tag(context, tag, key_len); - bool added = false; - if (CENSUS_TAG_IS_PROPAGATED(tag->flags)) { - added = tag_set_add_tag(&context->tags[PROPAGATED_TAGS], tag, key_len, - value_len); - } else { - added = - tag_set_add_tag(&context->tags[LOCAL_TAGS], tag, key_len, value_len); - } - - if (deleted) { - context->status.n_modified_tags++; - } else { - if (added) { - context->status.n_added_tags++; - } else { - context->status.n_ignored_tags++; - } - } -} - -// Remove memory used for deleted tags from a tag set. Basic algorithm: -// 1) Walk through tag set to find first deleted tag. Record where it is. -// 2) Find the next not-deleted tag. Copy all of kvm from there to the end -// "over" the deleted tags -// 3) repeat #1 and #2 until we have seen all tags -// 4) if we are still looking for a not-deleted tag, then all the end portion -// of the kvm is deleted. Just reduce the used amount of memory by the -// appropriate amount. -static void tag_set_flatten(struct tag_set *tags) { - if (tags->ntags == tags->ntags_alloc) return; - bool found_deleted = false; // found a deleted tag. - char *kvp = tags->kvm; - char *dbase = NULL; // record location of deleted tag - for (int i = 0; i < tags->ntags_alloc; i++) { - struct raw_tag tag; - char *next_kvp = decode_tag(&tag, kvp, 0); - if (found_deleted) { - if (!CENSUS_TAG_IS_DELETED(tag.flags)) { - ptrdiff_t reduce = kvp - dbase; // #bytes in deleted tags - GPR_ASSERT(reduce > 0); - ptrdiff_t copy_size = tags->kvm + tags->kvm_used - kvp; - GPR_ASSERT(copy_size > 0); - memmove(dbase, kvp, (size_t)copy_size); - tags->kvm_used -= (size_t)reduce; - next_kvp -= reduce; - found_deleted = false; - } - } else { - if (CENSUS_TAG_IS_DELETED(tag.flags)) { - dbase = kvp; - found_deleted = true; - } - } - kvp = next_kvp; - } - if (found_deleted) { - GPR_ASSERT(dbase > tags->kvm); - tags->kvm_used = (size_t)(dbase - tags->kvm); - } - tags->ntags_alloc = tags->ntags; -} - -census_context *census_context_create(const census_context *base, - const census_tag *tags, int ntags, - census_context_status const **status) { - census_context *context = - (census_context *)gpr_malloc(sizeof(census_context)); - // If we are given a base, copy it into our new tag set. Otherwise set it - // to zero/NULL everything. - if (base == NULL) { - memset(context, 0, sizeof(census_context)); - } else { - tag_set_copy(&context->tags[PROPAGATED_TAGS], &base->tags[PROPAGATED_TAGS]); - tag_set_copy(&context->tags[LOCAL_TAGS], &base->tags[LOCAL_TAGS]); - memset(&context->status, 0, sizeof(context->status)); - } - // Walk over the additional tags and, for those that aren't invalid, modify - // the context to add/replace/delete as required. - for (int i = 0; i < ntags; i++) { - const census_tag *tag = &tags[i]; - size_t key_len = validate_tag(tag->key); - // ignore the tag if it is invalid or too short. - if (key_len <= 1) { - context->status.n_invalid_tags++; - } else { - if (tag->value != NULL) { - size_t value_len = validate_tag(tag->value); - if (value_len != 0) { - context_modify_tag(context, tag, key_len, value_len); - } else { - context->status.n_invalid_tags++; - } - } else { - if (context_delete_tag(context, tag, key_len)) { - context->status.n_deleted_tags++; - } - } - } - } - // Remove any deleted tags, update status if needed, and return. - tag_set_flatten(&context->tags[PROPAGATED_TAGS]); - tag_set_flatten(&context->tags[LOCAL_TAGS]); - context->status.n_propagated_tags = context->tags[PROPAGATED_TAGS].ntags; - context->status.n_local_tags = context->tags[LOCAL_TAGS].ntags; - if (status) { - *status = &context->status; - } - return context; -} - -const census_context_status *census_context_get_status( - const census_context *context) { - return &context->status; -} - -void census_context_destroy(census_context *context) { - gpr_free(context->tags[PROPAGATED_TAGS].kvm); - gpr_free(context->tags[LOCAL_TAGS].kvm); - gpr_free(context); -} - -void census_context_initialize_iterator(const census_context *context, - census_context_iterator *iterator) { - iterator->context = context; - iterator->index = 0; - if (context->tags[PROPAGATED_TAGS].ntags != 0) { - iterator->base = PROPAGATED_TAGS; - iterator->kvm = context->tags[PROPAGATED_TAGS].kvm; - } else if (context->tags[LOCAL_TAGS].ntags != 0) { - iterator->base = LOCAL_TAGS; - iterator->kvm = context->tags[LOCAL_TAGS].kvm; - } else { - iterator->base = -1; - } -} - -int census_context_next_tag(census_context_iterator *iterator, - census_tag *tag) { - if (iterator->base < 0) { - return 0; - } - struct raw_tag raw; - iterator->kvm = decode_tag(&raw, iterator->kvm, 0); - tag->key = raw.key; - tag->value = raw.value; - tag->flags = raw.flags; - if (++iterator->index == iterator->context->tags[iterator->base].ntags) { - do { - if (iterator->base == LOCAL_TAGS) { - iterator->base = -1; - return 1; - } - } while (iterator->context->tags[++iterator->base].ntags == 0); - iterator->index = 0; - iterator->kvm = iterator->context->tags[iterator->base].kvm; - } - return 1; -} - -// Find a tag in a tag_set by key. Return true if found, false otherwise. -static bool tag_set_get_tag(const struct tag_set *tags, const char *key, - size_t key_len, census_tag *tag) { - char *kvp = tags->kvm; - for (int i = 0; i < tags->ntags; i++) { - struct raw_tag raw; - kvp = decode_tag(&raw, kvp, 0); - if (key_len == raw.key_len && memcmp(raw.key, key, key_len) == 0) { - tag->key = raw.key; - tag->value = raw.value; - tag->flags = raw.flags; - return true; - } - } - return false; -} - -int census_context_get_tag(const census_context *context, const char *key, - census_tag *tag) { - size_t key_len = strlen(key) + 1; - if (key_len == 1) { - return 0; - } - if (tag_set_get_tag(&context->tags[PROPAGATED_TAGS], key, key_len, tag) || - tag_set_get_tag(&context->tags[LOCAL_TAGS], key, key_len, tag)) { - return 1; - } - return 0; -} - -// Context encoding and decoding functions. -// -// Wire format for tag_set's on the wire: -// -// First, a tag set header: -// -// offset bytes description -// 0 1 version number -// 1 1 number of bytes in this header. This allows for future -// expansion. -// 2 1 number of bytes in each tag header. -// 3 1 ntags value from tag set. -// -// This is followed by the key/value memory from struct tag_set. - -#define ENCODED_VERSION 0 // Version number -#define ENCODED_HEADER_SIZE 4 // size of tag set header - -// Encode a tag set. Returns 0 if buffer is too small. -static size_t tag_set_encode(const struct tag_set *tags, char *buffer, - size_t buf_size) { - if (buf_size < ENCODED_HEADER_SIZE + tags->kvm_used) { - return 0; - } - buf_size -= ENCODED_HEADER_SIZE; - *buffer++ = (char)ENCODED_VERSION; - *buffer++ = (char)ENCODED_HEADER_SIZE; - *buffer++ = (char)TAG_HEADER_SIZE; - *buffer++ = (char)tags->ntags; - if (tags->ntags == 0) { - return ENCODED_HEADER_SIZE; - } - memcpy(buffer, tags->kvm, tags->kvm_used); - return ENCODED_HEADER_SIZE + tags->kvm_used; -} - -size_t census_context_encode(const census_context *context, char *buffer, - size_t buf_size) { - return tag_set_encode(&context->tags[PROPAGATED_TAGS], buffer, buf_size); -} - -// Decode a tag set. -static void tag_set_decode(struct tag_set *tags, const char *buffer, - size_t size) { - uint8_t version = (uint8_t)(*buffer++); - uint8_t header_size = (uint8_t)(*buffer++); - uint8_t tag_header_size = (uint8_t)(*buffer++); - tags->ntags = tags->ntags_alloc = (int)(*buffer++); - if (tags->ntags == 0) { - tags->ntags_alloc = 0; - tags->kvm_size = 0; - tags->kvm_used = 0; - tags->kvm = NULL; - return; - } - if (header_size != ENCODED_HEADER_SIZE) { - GPR_ASSERT(version != ENCODED_VERSION); - GPR_ASSERT(ENCODED_HEADER_SIZE < header_size); - buffer += (header_size - ENCODED_HEADER_SIZE); - } - tags->kvm_used = size - header_size; - tags->kvm_size = tags->kvm_used + CENSUS_MAX_TAG_KV_LEN; - tags->kvm = (char *)gpr_malloc(tags->kvm_size); - if (tag_header_size != TAG_HEADER_SIZE) { - // something new in the tag information. I don't understand it, so - // don't copy it over. - GPR_ASSERT(version != ENCODED_VERSION); - GPR_ASSERT(tag_header_size > TAG_HEADER_SIZE); - char *kvp = tags->kvm; - for (int i = 0; i < tags->ntags; i++) { - memcpy(kvp, buffer, TAG_HEADER_SIZE); - kvp += header_size; - struct raw_tag raw; - buffer = - decode_tag(&raw, (char *)buffer, tag_header_size - TAG_HEADER_SIZE); - memcpy(kvp, raw.key, (size_t)raw.key_len + raw.value_len); - kvp += raw.key_len + raw.value_len; - } - } else { - memcpy(tags->kvm, buffer, tags->kvm_used); - } -} - -census_context *census_context_decode(const char *buffer, size_t size) { - census_context *context = - (census_context *)gpr_malloc(sizeof(census_context)); - memset(&context->tags[LOCAL_TAGS], 0, sizeof(struct tag_set)); - if (buffer == NULL) { - memset(&context->tags[PROPAGATED_TAGS], 0, sizeof(struct tag_set)); - } else { - tag_set_decode(&context->tags[PROPAGATED_TAGS], buffer, size); - } - memset(&context->status, 0, sizeof(context->status)); - context->status.n_propagated_tags = context->tags[PROPAGATED_TAGS].ntags; - return context; -} diff --git a/src/core/ext/census/gen/README.md b/src/core/ext/census/gen/README.md deleted file mode 100644 index d4612bc7c8..0000000000 --- a/src/core/ext/census/gen/README.md +++ /dev/null @@ -1,10 +0,0 @@ -Files generated for use by Census stats and trace recording subsystem. - -# Files -* census.pb.{h,c} - Generated from src/core/ext/census/census.proto, using the - script `tools/codegen/core/gen_nano_proto.sh src/proto/census/census.proto - $PWD/src/core/ext/census/gen src/core/ext/census/gen` -* trace_context.pb.{h,c} - Generated from - src/core/ext/census/trace_context.proto, using the script - `tools/codegen/core/gen_nano_proto.sh src/proto/census/trace_context.proto - $PWD/src/core/ext/census/gen src/core/ext/census/gen` diff --git a/src/core/ext/census/gen/census.pb.c b/src/core/ext/census/gen/census.pb.c deleted file mode 100644 index 88efa73661..0000000000 --- a/src/core/ext/census/gen/census.pb.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ -/* Automatically generated nanopb constant definitions */ -/* Generated by nanopb-0.3.5-dev */ - -#include "src/core/ext/census/gen/census.pb.h" - -#if PB_PROTO_HEADER_VERSION != 30 -#error Regenerate this file with the current version of nanopb generator. -#endif - - - -const pb_field_t google_census_Duration_fields[3] = { - PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, google_census_Duration, seconds, seconds, 0), - PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, google_census_Duration, nanos, seconds, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Timestamp_fields[3] = { - PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, google_census_Timestamp, seconds, seconds, 0), - PB_FIELD( 2, INT32 , OPTIONAL, STATIC , OTHER, google_census_Timestamp, nanos, seconds, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Resource_fields[4] = { - PB_FIELD( 1, STRING , OPTIONAL, CALLBACK, FIRST, google_census_Resource, name, name, 0), - PB_FIELD( 2, STRING , OPTIONAL, CALLBACK, OTHER, google_census_Resource, description, name, 0), - PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, google_census_Resource, unit, description, &google_census_Resource_MeasurementUnit_fields), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Resource_MeasurementUnit_fields[4] = { - PB_FIELD( 1, INT32 , OPTIONAL, STATIC , FIRST, google_census_Resource_MeasurementUnit, prefix, prefix, 0), - PB_FIELD( 2, UENUM , REPEATED, CALLBACK, OTHER, google_census_Resource_MeasurementUnit, numerator, prefix, 0), - PB_FIELD( 3, UENUM , REPEATED, CALLBACK, OTHER, google_census_Resource_MeasurementUnit, denominator, numerator, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_AggregationDescriptor_fields[4] = { - PB_FIELD( 1, UENUM , OPTIONAL, STATIC , FIRST, google_census_AggregationDescriptor, type, type, 0), - PB_ONEOF_FIELD(options, 2, MESSAGE , ONEOF, STATIC , OTHER, google_census_AggregationDescriptor, bucket_boundaries, type, &google_census_AggregationDescriptor_BucketBoundaries_fields), - PB_ONEOF_FIELD(options, 3, MESSAGE , ONEOF, STATIC , OTHER, google_census_AggregationDescriptor, interval_boundaries, type, &google_census_AggregationDescriptor_IntervalBoundaries_fields), - PB_LAST_FIELD -}; - -const pb_field_t google_census_AggregationDescriptor_BucketBoundaries_fields[2] = { - PB_FIELD( 1, DOUBLE , REPEATED, CALLBACK, FIRST, google_census_AggregationDescriptor_BucketBoundaries, bounds, bounds, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_AggregationDescriptor_IntervalBoundaries_fields[2] = { - PB_FIELD( 1, DOUBLE , REPEATED, CALLBACK, FIRST, google_census_AggregationDescriptor_IntervalBoundaries, window_size, window_size, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Distribution_fields[5] = { - PB_FIELD( 1, INT64 , OPTIONAL, STATIC , FIRST, google_census_Distribution, count, count, 0), - PB_FIELD( 2, DOUBLE , OPTIONAL, STATIC , OTHER, google_census_Distribution, mean, count, 0), - PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, google_census_Distribution, range, mean, &google_census_Distribution_Range_fields), - PB_FIELD( 4, INT64 , REPEATED, CALLBACK, OTHER, google_census_Distribution, bucket_count, range, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Distribution_Range_fields[3] = { - PB_FIELD( 1, DOUBLE , OPTIONAL, STATIC , FIRST, google_census_Distribution_Range, min, min, 0), - PB_FIELD( 2, DOUBLE , OPTIONAL, STATIC , OTHER, google_census_Distribution_Range, max, min, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_IntervalStats_fields[2] = { - PB_FIELD( 1, MESSAGE , REPEATED, CALLBACK, FIRST, google_census_IntervalStats, window, window, &google_census_IntervalStats_Window_fields), - PB_LAST_FIELD -}; - -const pb_field_t google_census_IntervalStats_Window_fields[4] = { - PB_FIELD( 1, MESSAGE , OPTIONAL, STATIC , FIRST, google_census_IntervalStats_Window, window_size, window_size, &google_census_Duration_fields), - PB_FIELD( 2, INT64 , OPTIONAL, STATIC , OTHER, google_census_IntervalStats_Window, count, window_size, 0), - PB_FIELD( 3, DOUBLE , OPTIONAL, STATIC , OTHER, google_census_IntervalStats_Window, mean, count, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Tag_fields[3] = { - PB_FIELD( 1, STRING , OPTIONAL, STATIC , FIRST, google_census_Tag, key, key, 0), - PB_FIELD( 2, STRING , OPTIONAL, STATIC , OTHER, google_census_Tag, value, key, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_View_fields[6] = { - PB_FIELD( 1, STRING , OPTIONAL, CALLBACK, FIRST, google_census_View, name, name, 0), - PB_FIELD( 2, STRING , OPTIONAL, CALLBACK, OTHER, google_census_View, description, name, 0), - PB_FIELD( 3, STRING , OPTIONAL, CALLBACK, OTHER, google_census_View, resource_name, description, 0), - PB_FIELD( 4, MESSAGE , OPTIONAL, STATIC , OTHER, google_census_View, aggregation, resource_name, &google_census_AggregationDescriptor_fields), - PB_FIELD( 5, STRING , REPEATED, CALLBACK, OTHER, google_census_View, tag_key, aggregation, 0), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Aggregation_fields[7] = { - PB_FIELD( 1, STRING , OPTIONAL, CALLBACK, FIRST, google_census_Aggregation, name, name, 0), - PB_FIELD( 2, STRING , OPTIONAL, CALLBACK, OTHER, google_census_Aggregation, description, name, 0), - PB_ONEOF_FIELD(data, 3, UINT64 , ONEOF, STATIC , OTHER, google_census_Aggregation, count, description, 0), - PB_ONEOF_FIELD(data, 4, MESSAGE , ONEOF, STATIC , OTHER, google_census_Aggregation, distribution, description, &google_census_Distribution_fields), - PB_ONEOF_FIELD(data, 5, MESSAGE , ONEOF, STATIC , OTHER, google_census_Aggregation, interval_stats, description, &google_census_IntervalStats_fields), - PB_FIELD( 6, MESSAGE , REPEATED, CALLBACK, OTHER, google_census_Aggregation, tag, data.interval_stats, &google_census_Tag_fields), - PB_LAST_FIELD -}; - -const pb_field_t google_census_Metric_fields[5] = { - PB_FIELD( 1, STRING , OPTIONAL, CALLBACK, FIRST, google_census_Metric, view_name, view_name, 0), - PB_FIELD( 2, MESSAGE , REPEATED, CALLBACK, OTHER, google_census_Metric, aggregation, view_name, &google_census_Aggregation_fields), - PB_FIELD( 3, MESSAGE , OPTIONAL, STATIC , OTHER, google_census_Metric, start, aggregation, &google_census_Timestamp_fields), - PB_FIELD( 4, MESSAGE , OPTIONAL, STATIC , OTHER, google_census_Metric, end, start, &google_census_Timestamp_fields), - PB_LAST_FIELD -}; - - -/* Check that field information fits in pb_field_t */ -#if !defined(PB_FIELD_32BIT) -/* If you get an error here, it means that you need to define PB_FIELD_32BIT - * compile-time option. You can do that in pb.h or on compiler command line. - * - * The reason you need to do this is that some of your messages contain tag - * numbers or field sizes that are larger than what can fit in 8 or 16 bit - * field descriptors. - */ -PB_STATIC_ASSERT((pb_membersize(google_census_Resource, unit) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 65536 && pb_membersize(google_census_Resource, unit) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 65536 && pb_membersize(google_census_Distribution, range) < 65536 && pb_membersize(google_census_IntervalStats, window) < 65536 && pb_membersize(google_census_IntervalStats_Window, window_size) < 65536 && pb_membersize(google_census_View, aggregation) < 65536 && pb_membersize(google_census_Aggregation, data.distribution) < 65536 && pb_membersize(google_census_Aggregation, data.interval_stats) < 65536 && pb_membersize(google_census_Resource, unit) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 65536 && pb_membersize(google_census_Resource, unit) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 65536 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 65536 && pb_membersize(google_census_Distribution, range) < 65536 && pb_membersize(google_census_IntervalStats, window) < 65536 && pb_membersize(google_census_IntervalStats_Window, window_size) < 65536 && pb_membersize(google_census_View, aggregation) < 65536 && pb_membersize(google_census_Aggregation, data.distribution) < 65536 && pb_membersize(google_census_Aggregation, data.interval_stats) < 65536 && pb_membersize(google_census_Aggregation, tag) < 65536 && pb_membersize(google_census_Metric, aggregation) < 65536 && pb_membersize(google_census_Metric, start) < 65536 && pb_membersize(google_census_Metric, end) < 65536), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_google_census_Duration_google_census_Timestamp_google_census_Resource_google_census_Resource_MeasurementUnit_google_census_AggregationDescriptor_google_census_AggregationDescriptor_BucketBoundaries_google_census_AggregationDescriptor_IntervalBoundaries_google_census_Distribution_google_census_Distribution_Range_google_census_IntervalStats_google_census_IntervalStats_Window_google_census_Tag_google_census_View_google_census_Aggregation_google_census_Metric) -#endif - -#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT) -/* If you get an error here, it means that you need to define PB_FIELD_16BIT - * compile-time option. You can do that in pb.h or on compiler command line. - * - * The reason you need to do this is that some of your messages contain tag - * numbers or field sizes that are larger than what can fit in the default - * 8 bit descriptors. - */ -PB_STATIC_ASSERT((pb_membersize(google_census_Resource, unit) < 256 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 256 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 256 && pb_membersize(google_census_Resource, unit) < 256 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 256 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 256 && pb_membersize(google_census_Distribution, range) < 256 && pb_membersize(google_census_IntervalStats, window) < 256 && pb_membersize(google_census_IntervalStats_Window, window_size) < 256 && pb_membersize(google_census_View, aggregation) < 256 && pb_membersize(google_census_Aggregation, data.distribution) < 256 && pb_membersize(google_census_Aggregation, data.interval_stats) < 256 && pb_membersize(google_census_Resource, unit) < 256 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 256 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 256 && pb_membersize(google_census_Resource, unit) < 256 && pb_membersize(google_census_AggregationDescriptor, options.bucket_boundaries) < 256 && pb_membersize(google_census_AggregationDescriptor, options.interval_boundaries) < 256 && pb_membersize(google_census_Distribution, range) < 256 && pb_membersize(google_census_IntervalStats, window) < 256 && pb_membersize(google_census_IntervalStats_Window, window_size) < 256 && pb_membersize(google_census_View, aggregation) < 256 && pb_membersize(google_census_Aggregation, data.distribution) < 256 && pb_membersize(google_census_Aggregation, data.interval_stats) < 256 && pb_membersize(google_census_Aggregation, tag) < 256 && pb_membersize(google_census_Metric, aggregation) < 256 && pb_membersize(google_census_Metric, start) < 256 && pb_membersize(google_census_Metric, end) < 256), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_google_census_Duration_google_census_Timestamp_google_census_Resource_google_census_Resource_MeasurementUnit_google_census_AggregationDescriptor_google_census_AggregationDescriptor_BucketBoundaries_google_census_AggregationDescriptor_IntervalBoundaries_google_census_Distribution_google_census_Distribution_Range_google_census_IntervalStats_google_census_IntervalStats_Window_google_census_Tag_google_census_View_google_census_Aggregation_google_census_Metric) -#endif - - -/* On some platforms (such as AVR), double is really float. - * These are not directly supported by nanopb, but see example_avr_double. - * To get rid of this error, remove any double fields from your .proto. - */ -PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES) - diff --git a/src/core/ext/census/gen/census.pb.h b/src/core/ext/census/gen/census.pb.h deleted file mode 100644 index 5f28335664..0000000000 --- a/src/core/ext/census/gen/census.pb.h +++ /dev/null @@ -1,280 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ -/* Automatically generated nanopb header */ -/* Generated by nanopb-0.3.5-dev */ - -#ifndef GRPC_CORE_EXT_CENSUS_GEN_CENSUS_PB_H -#define GRPC_CORE_EXT_CENSUS_GEN_CENSUS_PB_H -#include "third_party/nanopb/pb.h" -#if PB_PROTO_HEADER_VERSION != 30 -#error Regenerate this file with the current version of nanopb generator. -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/* Enum definitions */ -typedef enum _google_census_Resource_BasicUnit { - google_census_Resource_BasicUnit_UNKNOWN = 0, - google_census_Resource_BasicUnit_BITS = 1, - google_census_Resource_BasicUnit_BYTES = 2, - google_census_Resource_BasicUnit_SECS = 3, - google_census_Resource_BasicUnit_CORES = 4, - google_census_Resource_BasicUnit_MAX_UNITS = 5 -} google_census_Resource_BasicUnit; - -typedef enum _google_census_AggregationDescriptor_AggregationType { - google_census_AggregationDescriptor_AggregationType_UNKNOWN = 0, - google_census_AggregationDescriptor_AggregationType_COUNT = 1, - google_census_AggregationDescriptor_AggregationType_DISTRIBUTION = 2, - google_census_AggregationDescriptor_AggregationType_INTERVAL = 3 -} google_census_AggregationDescriptor_AggregationType; - -/* Struct definitions */ -typedef struct _google_census_AggregationDescriptor_BucketBoundaries { - pb_callback_t bounds; -} google_census_AggregationDescriptor_BucketBoundaries; - -typedef struct _google_census_AggregationDescriptor_IntervalBoundaries { - pb_callback_t window_size; -} google_census_AggregationDescriptor_IntervalBoundaries; - -typedef struct _google_census_IntervalStats { - pb_callback_t window; -} google_census_IntervalStats; - -typedef struct _google_census_AggregationDescriptor { - bool has_type; - google_census_AggregationDescriptor_AggregationType type; - pb_size_t which_options; - union { - google_census_AggregationDescriptor_BucketBoundaries bucket_boundaries; - google_census_AggregationDescriptor_IntervalBoundaries interval_boundaries; - } options; -} google_census_AggregationDescriptor; - -typedef struct _google_census_Distribution_Range { - bool has_min; - double min; - bool has_max; - double max; -} google_census_Distribution_Range; - -typedef struct _google_census_Duration { - bool has_seconds; - int64_t seconds; - bool has_nanos; - int32_t nanos; -} google_census_Duration; - -typedef struct _google_census_Resource_MeasurementUnit { - bool has_prefix; - int32_t prefix; - pb_callback_t numerator; - pb_callback_t denominator; -} google_census_Resource_MeasurementUnit; - -typedef struct _google_census_Tag { - bool has_key; - char key[255]; - bool has_value; - char value[255]; -} google_census_Tag; - -typedef struct _google_census_Timestamp { - bool has_seconds; - int64_t seconds; - bool has_nanos; - int32_t nanos; -} google_census_Timestamp; - -typedef struct _google_census_Distribution { - bool has_count; - int64_t count; - bool has_mean; - double mean; - bool has_range; - google_census_Distribution_Range range; - pb_callback_t bucket_count; -} google_census_Distribution; - -typedef struct _google_census_IntervalStats_Window { - bool has_window_size; - google_census_Duration window_size; - bool has_count; - int64_t count; - bool has_mean; - double mean; -} google_census_IntervalStats_Window; - -typedef struct _google_census_Metric { - pb_callback_t view_name; - pb_callback_t aggregation; - bool has_start; - google_census_Timestamp start; - bool has_end; - google_census_Timestamp end; -} google_census_Metric; - -typedef struct _google_census_Resource { - pb_callback_t name; - pb_callback_t description; - bool has_unit; - google_census_Resource_MeasurementUnit unit; -} google_census_Resource; - -typedef struct _google_census_View { - pb_callback_t name; - pb_callback_t description; - pb_callback_t resource_name; - bool has_aggregation; - google_census_AggregationDescriptor aggregation; - pb_callback_t tag_key; -} google_census_View; - -typedef struct _google_census_Aggregation { - pb_callback_t name; - pb_callback_t description; - pb_size_t which_data; - union { - uint64_t count; - google_census_Distribution distribution; - google_census_IntervalStats interval_stats; - } data; - pb_callback_t tag; -} google_census_Aggregation; - -/* Default values for struct fields */ - -/* Initializer values for message structs */ -#define google_census_Duration_init_default {false, 0, false, 0} -#define google_census_Timestamp_init_default {false, 0, false, 0} -#define google_census_Resource_init_default {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Resource_MeasurementUnit_init_default} -#define google_census_Resource_MeasurementUnit_init_default {false, 0, {{NULL}, NULL}, {{NULL}, NULL}} -#define google_census_AggregationDescriptor_init_default {false, (google_census_AggregationDescriptor_AggregationType)0, 0, {google_census_AggregationDescriptor_BucketBoundaries_init_default}} -#define google_census_AggregationDescriptor_BucketBoundaries_init_default {{{NULL}, NULL}} -#define google_census_AggregationDescriptor_IntervalBoundaries_init_default {{{NULL}, NULL}} -#define google_census_Distribution_init_default {false, 0, false, 0, false, google_census_Distribution_Range_init_default, {{NULL}, NULL}} -#define google_census_Distribution_Range_init_default {false, 0, false, 0} -#define google_census_IntervalStats_init_default {{{NULL}, NULL}} -#define google_census_IntervalStats_Window_init_default {false, google_census_Duration_init_default, false, 0, false, 0} -#define google_census_Tag_init_default {false, "", false, ""} -#define google_census_View_init_default {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, false, google_census_AggregationDescriptor_init_default, {{NULL}, NULL}} -#define google_census_Aggregation_init_default {{{NULL}, NULL}, {{NULL}, NULL}, 0, {0}, {{NULL}, NULL}} -#define google_census_Metric_init_default {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Timestamp_init_default, false, google_census_Timestamp_init_default} -#define google_census_Duration_init_zero {false, 0, false, 0} -#define google_census_Timestamp_init_zero {false, 0, false, 0} -#define google_census_Resource_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Resource_MeasurementUnit_init_zero} -#define google_census_Resource_MeasurementUnit_init_zero {false, 0, {{NULL}, NULL}, {{NULL}, NULL}} -#define google_census_AggregationDescriptor_init_zero {false, (google_census_AggregationDescriptor_AggregationType)0, 0, {google_census_AggregationDescriptor_BucketBoundaries_init_zero}} -#define google_census_AggregationDescriptor_BucketBoundaries_init_zero {{{NULL}, NULL}} -#define google_census_AggregationDescriptor_IntervalBoundaries_init_zero {{{NULL}, NULL}} -#define google_census_Distribution_init_zero {false, 0, false, 0, false, google_census_Distribution_Range_init_zero, {{NULL}, NULL}} -#define google_census_Distribution_Range_init_zero {false, 0, false, 0} -#define google_census_IntervalStats_init_zero {{{NULL}, NULL}} -#define google_census_IntervalStats_Window_init_zero {false, google_census_Duration_init_zero, false, 0, false, 0} -#define google_census_Tag_init_zero {false, "", false, ""} -#define google_census_View_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, false, google_census_AggregationDescriptor_init_zero, {{NULL}, NULL}} -#define google_census_Aggregation_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, 0, {0}, {{NULL}, NULL}} -#define google_census_Metric_init_zero {{{NULL}, NULL}, {{NULL}, NULL}, false, google_census_Timestamp_init_zero, false, google_census_Timestamp_init_zero} - -/* Field tags (for use in manual encoding/decoding) */ -#define google_census_AggregationDescriptor_BucketBoundaries_bounds_tag 1 -#define google_census_AggregationDescriptor_IntervalBoundaries_window_size_tag 1 -#define google_census_IntervalStats_window_tag 1 -#define google_census_AggregationDescriptor_bucket_boundaries_tag 2 - -#define google_census_AggregationDescriptor_interval_boundaries_tag 3 -#define google_census_AggregationDescriptor_type_tag 1 -#define google_census_Distribution_Range_min_tag 1 -#define google_census_Distribution_Range_max_tag 2 -#define google_census_Duration_seconds_tag 1 -#define google_census_Duration_nanos_tag 2 -#define google_census_Resource_MeasurementUnit_prefix_tag 1 -#define google_census_Resource_MeasurementUnit_numerator_tag 2 -#define google_census_Resource_MeasurementUnit_denominator_tag 3 -#define google_census_Tag_key_tag 1 -#define google_census_Tag_value_tag 2 -#define google_census_Timestamp_seconds_tag 1 -#define google_census_Timestamp_nanos_tag 2 -#define google_census_Distribution_count_tag 1 -#define google_census_Distribution_mean_tag 2 -#define google_census_Distribution_range_tag 3 -#define google_census_Distribution_bucket_count_tag 4 -#define google_census_IntervalStats_Window_window_size_tag 1 -#define google_census_IntervalStats_Window_count_tag 2 -#define google_census_IntervalStats_Window_mean_tag 3 -#define google_census_Metric_view_name_tag 1 -#define google_census_Metric_aggregation_tag 2 -#define google_census_Metric_start_tag 3 -#define google_census_Metric_end_tag 4 -#define google_census_Resource_name_tag 1 -#define google_census_Resource_description_tag 2 -#define google_census_Resource_unit_tag 3 -#define google_census_View_name_tag 1 -#define google_census_View_description_tag 2 -#define google_census_View_resource_name_tag 3 -#define google_census_View_aggregation_tag 4 -#define google_census_View_tag_key_tag 5 -#define google_census_Aggregation_count_tag 3 - -#define google_census_Aggregation_distribution_tag 4 - -#define google_census_Aggregation_interval_stats_tag 5 -#define google_census_Aggregation_name_tag 1 -#define google_census_Aggregation_description_tag 2 -#define google_census_Aggregation_tag_tag 6 - -/* Struct field encoding specification for nanopb */ -extern const pb_field_t google_census_Duration_fields[3]; -extern const pb_field_t google_census_Timestamp_fields[3]; -extern const pb_field_t google_census_Resource_fields[4]; -extern const pb_field_t google_census_Resource_MeasurementUnit_fields[4]; -extern const pb_field_t google_census_AggregationDescriptor_fields[4]; -extern const pb_field_t google_census_AggregationDescriptor_BucketBoundaries_fields[2]; -extern const pb_field_t google_census_AggregationDescriptor_IntervalBoundaries_fields[2]; -extern const pb_field_t google_census_Distribution_fields[5]; -extern const pb_field_t google_census_Distribution_Range_fields[3]; -extern const pb_field_t google_census_IntervalStats_fields[2]; -extern const pb_field_t google_census_IntervalStats_Window_fields[4]; -extern const pb_field_t google_census_Tag_fields[3]; -extern const pb_field_t google_census_View_fields[6]; -extern const pb_field_t google_census_Aggregation_fields[7]; -extern const pb_field_t google_census_Metric_fields[5]; - -/* Maximum encoded size of messages (where known) */ -#define google_census_Duration_size 22 -#define google_census_Timestamp_size 22 -#define google_census_Distribution_Range_size 18 -#define google_census_IntervalStats_Window_size 44 -#define google_census_Tag_size 516 - -/* Message IDs (where set with "msgid" option) */ -#ifdef PB_MSGID - -#define CENSUS_MESSAGES \ - - -#endif - -#ifdef __cplusplus -} /* extern "C" */ -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_GEN_CENSUS_PB_H */ diff --git a/src/core/ext/census/gen/trace_context.pb.c b/src/core/ext/census/gen/trace_context.pb.c deleted file mode 100644 index b5c3d52a71..0000000000 --- a/src/core/ext/census/gen/trace_context.pb.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ -/* Automatically generated nanopb constant definitions */ -/* Generated by nanopb-0.3.7-dev at Fri Jan 20 16:14:22 2017. */ - -#include "src/core/ext/census/gen/trace_context.pb.h" - -/* @@protoc_insertion_point(includes) */ -#if PB_PROTO_HEADER_VERSION != 30 -#error Regenerate this file with the current version of nanopb generator. -#endif - - - -const pb_field_t google_trace_TraceContext_fields[5] = { - PB_FIELD( 1, FIXED64 , OPTIONAL, STATIC , FIRST, google_trace_TraceContext, trace_id_hi, trace_id_hi, 0), - PB_FIELD( 2, FIXED64 , OPTIONAL, STATIC , OTHER, google_trace_TraceContext, trace_id_lo, trace_id_hi, 0), - PB_FIELD( 3, FIXED64 , OPTIONAL, STATIC , OTHER, google_trace_TraceContext, span_id, trace_id_lo, 0), - PB_FIELD( 4, FIXED32 , OPTIONAL, STATIC , OTHER, google_trace_TraceContext, span_options, span_id, 0), - PB_LAST_FIELD -}; - - -/* @@protoc_insertion_point(eof) */ diff --git a/src/core/ext/census/gen/trace_context.pb.h b/src/core/ext/census/gen/trace_context.pb.h deleted file mode 100644 index 181925dc9a..0000000000 --- a/src/core/ext/census/gen/trace_context.pb.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ -/* Automatically generated nanopb header */ -/* Generated by nanopb-0.3.7-dev at Fri Jan 20 16:14:22 2017. */ - -#ifndef GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H -#define GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H -#include "third_party/nanopb/pb.h" - -/* @@protoc_insertion_point(includes) */ -#if PB_PROTO_HEADER_VERSION != 30 -#error Regenerate this file with the current version of nanopb generator. -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/* Struct definitions */ -typedef struct _google_trace_TraceContext { - bool has_trace_id_hi; - uint64_t trace_id_hi; - bool has_trace_id_lo; - uint64_t trace_id_lo; - bool has_span_id; - uint64_t span_id; - bool has_span_options; - uint32_t span_options; -/* @@protoc_insertion_point(struct:google_trace_TraceContext) */ -} google_trace_TraceContext; - -/* Default values for struct fields */ - -/* Initializer values for message structs */ -#define google_trace_TraceContext_init_default {false, 0, false, 0, false, 0, false, 0} -#define google_trace_TraceContext_init_zero {false, 0, false, 0, false, 0, false, 0} - -/* Field tags (for use in manual encoding/decoding) */ -#define google_trace_TraceContext_trace_id_hi_tag 1 -#define google_trace_TraceContext_trace_id_lo_tag 2 -#define google_trace_TraceContext_span_id_tag 3 -#define google_trace_TraceContext_span_options_tag 4 - -/* Struct field encoding specification for nanopb */ -extern const pb_field_t google_trace_TraceContext_fields[5]; - -/* Maximum encoded size of messages (where known) */ -#define google_trace_TraceContext_size 32 - -/* Message IDs (where set with "msgid" option) */ -#ifdef PB_MSGID - -#define TRACE_CONTEXT_MESSAGES \ - - -#endif - -#ifdef __cplusplus -} /* extern "C" */ -#endif -/* @@protoc_insertion_point(eof) */ - -#endif /* GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H */ diff --git a/src/core/ext/census/grpc_context.cc b/src/core/ext/census/grpc_context.cc index 0bfba63a5e..ffe7c51ff8 100644 --- a/src/core/ext/census/grpc_context.cc +++ b/src/core/ext/census/grpc_context.cc @@ -21,18 +21,15 @@ #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/call.h" -void grpc_census_call_set_context(grpc_call *call, census_context *context) { +void grpc_census_call_set_context(grpc_call* call, census_context* context) { GRPC_API_TRACE("grpc_census_call_set_context(call=%p, census_context=%p)", 2, (call, context)); - if (census_enabled() == CENSUS_FEATURE_NONE) { - return; - } - if (context != NULL) { - grpc_call_context_set(call, GRPC_CONTEXT_TRACING, context, NULL); + if (context != nullptr) { + grpc_call_context_set(call, GRPC_CONTEXT_TRACING, context, nullptr); } } -census_context *grpc_census_call_get_context(grpc_call *call) { +census_context* grpc_census_call_get_context(grpc_call* call) { GRPC_API_TRACE("grpc_census_call_get_context(call=%p)", 1, (call)); - return (census_context *)grpc_call_context_get(call, GRPC_CONTEXT_TRACING); + return (census_context*)grpc_call_context_get(call, GRPC_CONTEXT_TRACING); } diff --git a/src/core/ext/census/grpc_filter.cc b/src/core/ext/census/grpc_filter.cc deleted file mode 100644 index b37ab90389..0000000000 --- a/src/core/ext/census/grpc_filter.cc +++ /dev/null @@ -1,196 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/grpc_filter.h" - -#include <stdio.h> -#include <string.h> - -#include <grpc/census.h> -#include <grpc/slice.h> -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/time.h> - -#include "src/core/ext/census/census_interface.h" -#include "src/core/ext/census/census_rpc_stats.h" -#include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/profiling/timers.h" -#include "src/core/lib/transport/static_metadata.h" - -typedef struct call_data { - census_op_id op_id; - census_context *ctxt; - gpr_timespec start_ts; - int error; - - /* recv callback */ - grpc_metadata_batch *recv_initial_metadata; - grpc_closure *on_done_recv; - grpc_closure finish_recv; -} call_data; - -typedef struct channel_data { uint8_t unused; } channel_data; - -static void extract_and_annotate_method_tag(grpc_metadata_batch *md, - call_data *calld, - channel_data *chand) { - grpc_linked_mdelem *m; - for (m = md->list.head; m != NULL; m = m->next) { - if (grpc_slice_eq(GRPC_MDKEY(m->md), GRPC_MDSTR_PATH)) { - /* Add method tag here */ - } - } -} - -static void client_mutate_op(grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; - if (op->send_initial_metadata) { - extract_and_annotate_method_tag( - op->payload->send_initial_metadata.send_initial_metadata, calld, chand); - } -} - -static void client_start_transport_op(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { - client_mutate_op(elem, op); - grpc_call_next_op(exec_ctx, elem, op); -} - -static void server_on_done_recv(grpc_exec_ctx *exec_ctx, void *ptr, - grpc_error *error) { - GPR_TIMER_BEGIN("census-server:server_on_done_recv", 0); - grpc_call_element *elem = (grpc_call_element *)ptr; - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; - if (error == GRPC_ERROR_NONE) { - extract_and_annotate_method_tag(calld->recv_initial_metadata, calld, chand); - } - calld->on_done_recv->cb(exec_ctx, calld->on_done_recv->cb_arg, error); - GPR_TIMER_END("census-server:server_on_done_recv", 0); -} - -static void server_mutate_op(grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { - call_data *calld = (call_data *)elem->call_data; - if (op->recv_initial_metadata) { - /* substitute our callback for the op callback */ - calld->recv_initial_metadata = - op->payload->recv_initial_metadata.recv_initial_metadata; - calld->on_done_recv = - op->payload->recv_initial_metadata.recv_initial_metadata_ready; - op->payload->recv_initial_metadata.recv_initial_metadata_ready = - &calld->finish_recv; - } -} - -static void server_start_transport_op(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { - /* TODO(ctiller): this code fails. I don't know why. I expect it's - incomplete, and someone should look at it soon. - - call_data *calld = elem->call_data; - GPR_ASSERT((calld->op_id.upper != 0) || (calld->op_id.lower != 0)); */ - server_mutate_op(elem, op); - grpc_call_next_op(exec_ctx, elem, op); -} - -static grpc_error *client_init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *d = (call_data *)elem->call_data; - GPR_ASSERT(d != NULL); - memset(d, 0, sizeof(*d)); - d->start_ts = args->start_time; - return GRPC_ERROR_NONE; -} - -static void client_destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *d = (call_data *)elem->call_data; - GPR_ASSERT(d != NULL); - /* TODO(hongyu): record rpc client stats and census_rpc_end_op here */ -} - -static grpc_error *server_init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *d = (call_data *)elem->call_data; - GPR_ASSERT(d != NULL); - memset(d, 0, sizeof(*d)); - d->start_ts = args->start_time; - /* TODO(hongyu): call census_tracing_start_op here. */ - GRPC_CLOSURE_INIT(&d->finish_recv, server_on_done_recv, elem, - grpc_schedule_on_exec_ctx); - return GRPC_ERROR_NONE; -} - -static void server_destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *d = (call_data *)elem->call_data; - GPR_ASSERT(d != NULL); - /* TODO(hongyu): record rpc server stats and census_tracing_end_op here */ -} - -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { - channel_data *chand = (channel_data *)elem->channel_data; - GPR_ASSERT(chand != NULL); - return GRPC_ERROR_NONE; -} - -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - GPR_ASSERT(chand != NULL); -} - -const grpc_channel_filter grpc_client_census_filter = { - client_start_transport_op, - grpc_channel_next_op, - sizeof(call_data), - client_init_call_elem, - grpc_call_stack_ignore_set_pollset_or_pollset_set, - client_destroy_call_elem, - sizeof(channel_data), - init_channel_elem, - destroy_channel_elem, - grpc_channel_next_get_info, - "census-client"}; - -const grpc_channel_filter grpc_server_census_filter = { - server_start_transport_op, - grpc_channel_next_op, - sizeof(call_data), - server_init_call_elem, - grpc_call_stack_ignore_set_pollset_or_pollset_set, - server_destroy_call_elem, - sizeof(channel_data), - init_channel_elem, - destroy_channel_elem, - grpc_channel_next_get_info, - "census-server"}; diff --git a/src/core/ext/census/grpc_plugin.cc b/src/core/ext/census/grpc_plugin.cc deleted file mode 100644 index 22b16c6c63..0000000000 --- a/src/core/ext/census/grpc_plugin.cc +++ /dev/null @@ -1,70 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <grpc/support/port_platform.h> - -#include <limits.h> -#include <string.h> - -#include <grpc/census.h> - -#include "src/core/ext/census/grpc_filter.h" -#include "src/core/lib/channel/channel_stack_builder.h" -#include "src/core/lib/surface/channel_init.h" - -static bool is_census_enabled(const grpc_channel_args *a) { - size_t i; - if (a == NULL) return 0; - for (i = 0; i < a->num_args; i++) { - if (0 == strcmp(a->args[i].key, GRPC_ARG_ENABLE_CENSUS)) { - return a->args[i].value.integer != 0 && census_enabled(); - } - } - return census_enabled() && !grpc_channel_args_want_minimal_stack(a); -} - -static bool maybe_add_census_filter(grpc_exec_ctx *exec_ctx, - grpc_channel_stack_builder *builder, - void *arg) { - const grpc_channel_args *args = - grpc_channel_stack_builder_get_channel_arguments(builder); - if (is_census_enabled(args)) { - return grpc_channel_stack_builder_prepend_filter( - builder, (const grpc_channel_filter *)arg, NULL, NULL); - } - return true; -} - -extern "C" void census_grpc_plugin_init(void) { - /* Only initialize census if no one else has and some features are - * available. */ - if (census_enabled() == CENSUS_FEATURE_NONE && - census_supported() != CENSUS_FEATURE_NONE) { - if (census_initialize(census_supported())) { /* enable all features. */ - gpr_log(GPR_ERROR, "Could not initialize census."); - } - } - grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX, - maybe_add_census_filter, - (void *)&grpc_client_census_filter); - grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, - maybe_add_census_filter, - (void *)&grpc_server_census_filter); -} - -extern "C" void census_grpc_plugin_shutdown(void) { census_shutdown(); } diff --git a/src/core/ext/census/hash_table.cc b/src/core/ext/census/hash_table.cc deleted file mode 100644 index 545b0857c7..0000000000 --- a/src/core/ext/census/hash_table.cc +++ /dev/null @@ -1,288 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/hash_table.h" - -#include <stddef.h> -#include <stdio.h> - -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/port_platform.h> - -#define CENSUS_HT_NUM_BUCKETS 1999 - -/* A single hash table data entry */ -typedef struct ht_entry { - census_ht_key key; - void *data; - struct ht_entry *next; -} ht_entry; - -/* hash table bucket */ -typedef struct bucket { - /* NULL if bucket is empty */ - ht_entry *next; - /* -1 if all buckets are empty. */ - int32_t prev_non_empty_bucket; - /* -1 if all buckets are empty. */ - int32_t next_non_empty_bucket; -} bucket; - -struct unresizable_hash_table { - /* Number of entries in the table */ - size_t size; - /* Number of buckets */ - uint32_t num_buckets; - /* Array of buckets initialized at creation time. Memory consumption is - 16 bytes per bucket on a 64-bit platform. */ - bucket *buckets; - /* Index of the first non-empty bucket. -1 iff size == 0. */ - int32_t first_non_empty_bucket; - /* Index of the last non_empty bucket. -1 iff size == 0. */ - int32_t last_non_empty_bucket; - /* Immutable options of this hash table, initialized at creation time. */ - census_ht_option options; -}; - -typedef struct entry_locator { - int32_t bucket_idx; - int is_first_in_chain; - int found; - ht_entry *prev_entry; -} entry_locator; - -/* Asserts if option is not valid. */ -void check_options(const census_ht_option *option) { - GPR_ASSERT(option != NULL); - GPR_ASSERT(option->num_buckets > 0); - GPR_ASSERT(option->key_type == CENSUS_HT_UINT64 || - option->key_type == CENSUS_HT_POINTER); - if (option->key_type == CENSUS_HT_UINT64) { - GPR_ASSERT(option->hash == NULL); - } else if (option->key_type == CENSUS_HT_POINTER) { - GPR_ASSERT(option->hash != NULL); - GPR_ASSERT(option->compare_keys != NULL); - } -} - -#define REMOVE_NEXT(options, ptr) \ - do { \ - ht_entry *tmp = (ptr)->next; \ - (ptr)->next = tmp->next; \ - delete_entry(options, tmp); \ - } while (0) - -static void delete_entry(const census_ht_option *opt, ht_entry *p) { - if (opt->delete_data != NULL) { - opt->delete_data(p->data); - } - if (opt->delete_key != NULL) { - opt->delete_key(p->key.ptr); - } - gpr_free(p); -} - -static uint64_t hash(const census_ht_option *opt, census_ht_key key) { - return opt->key_type == CENSUS_HT_UINT64 ? key.val : opt->hash(key.ptr); -} - -census_ht *census_ht_create(const census_ht_option *option) { - int i; - census_ht *ret = NULL; - check_options(option); - ret = (census_ht *)gpr_malloc(sizeof(census_ht)); - ret->size = 0; - ret->num_buckets = option->num_buckets; - ret->buckets = (bucket *)gpr_malloc(sizeof(bucket) * ret->num_buckets); - ret->options = *option; - /* initialize each bucket */ - for (i = 0; i < ret->options.num_buckets; i++) { - ret->buckets[i].prev_non_empty_bucket = -1; - ret->buckets[i].next_non_empty_bucket = -1; - ret->buckets[i].next = NULL; - } - return ret; -} - -static int32_t find_bucket_idx(const census_ht *ht, census_ht_key key) { - return hash(&ht->options, key) % ht->num_buckets; -} - -static int keys_match(const census_ht_option *opt, const ht_entry *p, - const census_ht_key key) { - GPR_ASSERT(opt->key_type == CENSUS_HT_UINT64 || - opt->key_type == CENSUS_HT_POINTER); - if (opt->key_type == CENSUS_HT_UINT64) return p->key.val == key.val; - return !opt->compare_keys((p->key).ptr, key.ptr); -} - -static entry_locator ht_find(const census_ht *ht, census_ht_key key) { - entry_locator loc = {0, 0, 0, NULL}; - int32_t idx = 0; - ht_entry *ptr = NULL; - GPR_ASSERT(ht != NULL); - idx = find_bucket_idx(ht, key); - ptr = ht->buckets[idx].next; - if (ptr == NULL) { - /* bucket is empty */ - return loc; - } - if (keys_match(&ht->options, ptr, key)) { - loc.bucket_idx = idx; - loc.is_first_in_chain = 1; - loc.found = 1; - return loc; - } else { - for (; ptr->next != NULL; ptr = ptr->next) { - if (keys_match(&ht->options, ptr->next, key)) { - loc.bucket_idx = idx; - loc.is_first_in_chain = 0; - loc.found = 1; - loc.prev_entry = ptr; - return loc; - } - } - } - /* Could not find the key */ - return loc; -} - -void *census_ht_find(const census_ht *ht, census_ht_key key) { - entry_locator loc = ht_find(ht, key); - if (loc.found == 0) { - return NULL; - } - return loc.is_first_in_chain ? ht->buckets[loc.bucket_idx].next->data - : loc.prev_entry->next->data; -} - -void census_ht_insert(census_ht *ht, census_ht_key key, void *data) { - int32_t idx = find_bucket_idx(ht, key); - ht_entry *ptr = NULL; - entry_locator loc = ht_find(ht, key); - if (loc.found) { - /* Replace old value with new value. */ - ptr = loc.is_first_in_chain ? ht->buckets[loc.bucket_idx].next - : loc.prev_entry->next; - if (ht->options.delete_data != NULL) { - ht->options.delete_data(ptr->data); - } - ptr->data = data; - return; - } - - /* first entry in the table. */ - if (ht->size == 0) { - ht->buckets[idx].next_non_empty_bucket = -1; - ht->buckets[idx].prev_non_empty_bucket = -1; - ht->first_non_empty_bucket = idx; - ht->last_non_empty_bucket = idx; - } else if (ht->buckets[idx].next == NULL) { - /* first entry in the bucket. */ - ht->buckets[ht->last_non_empty_bucket].next_non_empty_bucket = idx; - ht->buckets[idx].prev_non_empty_bucket = ht->last_non_empty_bucket; - ht->buckets[idx].next_non_empty_bucket = -1; - ht->last_non_empty_bucket = idx; - } - ptr = (ht_entry *)gpr_malloc(sizeof(ht_entry)); - ptr->key = key; - ptr->data = data; - ptr->next = ht->buckets[idx].next; - ht->buckets[idx].next = ptr; - ht->size++; -} - -void census_ht_erase(census_ht *ht, census_ht_key key) { - entry_locator loc = ht_find(ht, key); - if (loc.found == 0) { - /* noop if not found */ - return; - } - ht->size--; - if (loc.is_first_in_chain) { - bucket *b = &ht->buckets[loc.bucket_idx]; - GPR_ASSERT(b->next != NULL); - /* The only entry in the bucket */ - if (b->next->next == NULL) { - int prev = b->prev_non_empty_bucket; - int next = b->next_non_empty_bucket; - if (prev != -1) { - ht->buckets[prev].next_non_empty_bucket = next; - } else { - ht->first_non_empty_bucket = next; - } - if (next != -1) { - ht->buckets[next].prev_non_empty_bucket = prev; - } else { - ht->last_non_empty_bucket = prev; - } - } - REMOVE_NEXT(&ht->options, b); - } else { - GPR_ASSERT(loc.prev_entry->next != NULL); - REMOVE_NEXT(&ht->options, loc.prev_entry); - } -} - -/* Returns NULL if input table is empty. */ -census_ht_kv *census_ht_get_all_elements(const census_ht *ht, size_t *num) { - census_ht_kv *ret = NULL; - int i = 0; - int32_t idx = -1; - GPR_ASSERT(ht != NULL && num != NULL); - *num = ht->size; - if (*num == 0) { - return NULL; - } - - ret = (census_ht_kv *)gpr_malloc(sizeof(census_ht_kv) * ht->size); - idx = ht->first_non_empty_bucket; - while (idx >= 0) { - ht_entry *ptr = ht->buckets[idx].next; - for (; ptr != NULL; ptr = ptr->next) { - ret[i].k = ptr->key; - ret[i].v = ptr->data; - i++; - } - idx = ht->buckets[idx].next_non_empty_bucket; - } - return ret; -} - -static void ht_delete_entry_chain(const census_ht_option *options, - ht_entry *first) { - if (first == NULL) { - return; - } - if (first->next != NULL) { - ht_delete_entry_chain(options, first->next); - } - delete_entry(options, first); -} - -void census_ht_destroy(census_ht *ht) { - unsigned i; - for (i = 0; i < ht->num_buckets; ++i) { - ht_delete_entry_chain(&ht->options, ht->buckets[i].next); - } - gpr_free(ht->buckets); - gpr_free(ht); -} - -size_t census_ht_get_size(const census_ht *ht) { return ht->size; } diff --git a/src/core/ext/census/hash_table.h b/src/core/ext/census/hash_table.h deleted file mode 100644 index c3ed94ea14..0000000000 --- a/src/core/ext/census/hash_table.h +++ /dev/null @@ -1,124 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_HASH_TABLE_H -#define GRPC_CORE_EXT_CENSUS_HASH_TABLE_H - -#include <stddef.h> - -#include <grpc/support/port_platform.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* A chain based hash table with fixed number of buckets. - Your probably shouldn't use this code directly. It is implemented for the - use case in census trace store and stats store, where number of entries in - the table is in the scale of upto several thousands, entries are added and - removed from the table very frequently (~100k/s), the frequency of find() - operations is roughly several times of the frequency of insert() and erase() - Comparing to find(), the insert(), erase() and get_all_entries() operations - are much less freqent (<1/s). - - Per bucket memory overhead is about (8 + sizeof(intptr_t) bytes. - Per entry memory overhead is about (8 + 2 * sizeof(intptr_t) bytes. - - All functions are not thread-safe. Synchronization will be provided in the - upper layer (in trace store and stats store). -*/ - -/* Opaque hash table struct */ -typedef struct unresizable_hash_table census_ht; - -/* Currently, the hash_table can take two types of keys. (uint64 for trace - store and const char* for stats store). */ -typedef union { - uint64_t val; - void *ptr; -} census_ht_key; - -typedef enum census_ht_key_type { - CENSUS_HT_UINT64 = 0, - CENSUS_HT_POINTER = 1 -} census_ht_key_type; - -typedef struct census_ht_option { - /* Type of hash key */ - census_ht_key_type key_type; - /* Desired number of buckets, preferably a prime number */ - int32_t num_buckets; - /* Fucntion to calculate uint64 hash value of the key. Only takes effect if - key_type is POINTER. */ - uint64_t (*hash)(const void *); - /* Function to compare two keys, returns 0 iff equal. Only takes effect if - key_type is POINTER */ - int (*compare_keys)(const void *k1, const void *k2); - /* Value deleter. NULL if no specialized delete function is needed. */ - void (*delete_data)(void *); - /* Key deleter. NULL if table does not own the key. (e.g. key is part of the - value or key is not owned by the table.) */ - void (*delete_key)(void *); -} census_ht_option; - -/* Creates a hashtable with fixed number of buckets according to the settings - specified in 'options' arg. Function pointers "hash" and "compare_keys" must - be provided if key_type is POINTER. Asserts if fail to create. */ -census_ht *census_ht_create(const census_ht_option *options); - -/* Deletes hash table instance. Frees all dynamic memory owned by ht.*/ -void census_ht_destroy(census_ht *ht); - -/* Inserts the input key-val pair into hash_table. If an entry with the same key - exists in the table, the corresponding value will be overwritten by the input - val. */ -void census_ht_insert(census_ht *ht, census_ht_key key, void *val); - -/* Returns pointer to data, returns NULL if not found. */ -void *census_ht_find(const census_ht *ht, census_ht_key key); - -/* Erase hash table entry with input key. Noop if key is not found. */ -void census_ht_erase(census_ht *ht, census_ht_key key); - -typedef struct census_ht_kv { - census_ht_key k; - void *v; -} census_ht_kv; - -/* Returns an array of pointers to all values in the hash table. Order of the - elements can be arbitrary. Sets 'num' to the size of returned array. Caller - owns returned array. */ -census_ht_kv *census_ht_get_all_elements(const census_ht *ht, size_t *num); - -/* Returns number of elements kept. */ -size_t census_ht_get_size(const census_ht *ht); - -/* Functor applied on each key-value pair while iterating through entries in the - table. The functor should not mutate data. */ -typedef void (*census_ht_itr_cb)(census_ht_key key, const void *val_ptr, - void *state); - -/* Iterates through all key-value pairs in the hash_table. The callback function - should not invalidate data entries. */ -uint64_t census_ht_for_all(const census_ht *ht, census_ht_itr_cb); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_HASH_TABLE_H */ diff --git a/src/core/ext/census/initialize.cc b/src/core/ext/census/initialize.cc deleted file mode 100644 index 165a1221d4..0000000000 --- a/src/core/ext/census/initialize.cc +++ /dev/null @@ -1,51 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <grpc/census.h> -#include "src/core/ext/census/base_resources.h" -#include "src/core/ext/census/resource.h" - -static int features_enabled = CENSUS_FEATURE_NONE; - -int census_initialize(int features) { - if (features_enabled != CENSUS_FEATURE_NONE) { - // Must have been a previous call to census_initialize; return error - return -1; - } - features_enabled = features & CENSUS_FEATURE_ALL; - if (features & CENSUS_FEATURE_STATS) { - initialize_resources(); - define_base_resources(); - } - - return features_enabled; -} - -void census_shutdown(void) { - if (features_enabled & CENSUS_FEATURE_STATS) { - shutdown_resources(); - } - features_enabled = CENSUS_FEATURE_NONE; -} - -int census_supported(void) { - /* TODO(aveitch): improve this as we implement features... */ - return CENSUS_FEATURE_NONE; -} - -int census_enabled(void) { return features_enabled; } diff --git a/src/core/ext/census/intrusive_hash_map.cc b/src/core/ext/census/intrusive_hash_map.cc deleted file mode 100644 index 7930486963..0000000000 --- a/src/core/ext/census/intrusive_hash_map.cc +++ /dev/null @@ -1,305 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/intrusive_hash_map.h" -#include <string.h> - -extern bool hm_index_compare(const hm_index *A, const hm_index *B); - -/* Simple hashing function that takes lower 32 bits. */ -static __inline uint32_t chunked_vector_hasher(uint64_t key) { - return (uint32_t)key; -} - -/* Vector chunks are 1MiB divided by pointer size. */ -static const size_t VECTOR_CHUNK_SIZE = (1 << 20) / sizeof(void *); - -/* Helper functions which return buckets from the chunked vector. */ -static __inline void **get_mutable_bucket(const chunked_vector *buckets, - uint32_t index) { - if (index < VECTOR_CHUNK_SIZE) { - return &buckets->first_[index]; - } - size_t rest_index = (index - VECTOR_CHUNK_SIZE) / VECTOR_CHUNK_SIZE; - return &buckets->rest_[rest_index][index % VECTOR_CHUNK_SIZE]; -} - -static __inline void *get_bucket(const chunked_vector *buckets, - uint32_t index) { - if (index < VECTOR_CHUNK_SIZE) { - return buckets->first_[index]; - } - size_t rest_index = (index - VECTOR_CHUNK_SIZE) / VECTOR_CHUNK_SIZE; - return buckets->rest_[rest_index][index % VECTOR_CHUNK_SIZE]; -} - -/* Helper function. */ -static __inline size_t RestSize(const chunked_vector *vec) { - return (vec->size_ <= VECTOR_CHUNK_SIZE) - ? 0 - : (vec->size_ - VECTOR_CHUNK_SIZE - 1) / VECTOR_CHUNK_SIZE + 1; -} - -/* Initialize chunked vector to size of 0. */ -static void chunked_vector_init(chunked_vector *vec) { - vec->size_ = 0; - vec->first_ = NULL; - vec->rest_ = NULL; -} - -/* Clear chunked vector and free all memory that has been allocated then - initialize chunked vector. */ -static void chunked_vector_clear(chunked_vector *vec) { - if (vec->first_ != NULL) { - gpr_free(vec->first_); - } - if (vec->rest_ != NULL) { - size_t rest_size = RestSize(vec); - for (size_t i = 0; i < rest_size; ++i) { - if (vec->rest_[i] != NULL) { - gpr_free(vec->rest_[i]); - } - } - gpr_free(vec->rest_); - } - chunked_vector_init(vec); -} - -/* Clear chunked vector and then resize it to n entries. Allow the first 1MB to - be read w/o an extra cache miss. The rest of the elements are stored in an - array of arrays to avoid large mallocs. */ -static void chunked_vector_reset(chunked_vector *vec, size_t n) { - chunked_vector_clear(vec); - vec->size_ = n; - if (n <= VECTOR_CHUNK_SIZE) { - vec->first_ = (void **)gpr_malloc(sizeof(void *) * n); - memset(vec->first_, 0, sizeof(void *) * n); - } else { - vec->first_ = (void **)gpr_malloc(sizeof(void *) * VECTOR_CHUNK_SIZE); - memset(vec->first_, 0, sizeof(void *) * VECTOR_CHUNK_SIZE); - size_t rest_size = RestSize(vec); - vec->rest_ = (void ***)gpr_malloc(sizeof(void **) * rest_size); - memset(vec->rest_, 0, sizeof(void **) * rest_size); - int i = 0; - n -= VECTOR_CHUNK_SIZE; - while (n > 0) { - size_t this_size = GPR_MIN(n, VECTOR_CHUNK_SIZE); - vec->rest_[i] = (void **)gpr_malloc(sizeof(void *) * this_size); - memset(vec->rest_[i], 0, sizeof(void *) * this_size); - n -= this_size; - ++i; - } - } -} - -void intrusive_hash_map_init(intrusive_hash_map *hash_map, - uint32_t initial_log2_table_size) { - hash_map->log2_num_buckets = initial_log2_table_size; - hash_map->num_items = 0; - uint32_t num_buckets = (uint32_t)1 << hash_map->log2_num_buckets; - hash_map->extend_threshold = num_buckets >> 1; - chunked_vector_init(&hash_map->buckets); - chunked_vector_reset(&hash_map->buckets, num_buckets); - hash_map->hash_mask = num_buckets - 1; -} - -bool intrusive_hash_map_empty(const intrusive_hash_map *hash_map) { - return hash_map->num_items == 0; -} - -size_t intrusive_hash_map_size(const intrusive_hash_map *hash_map) { - return hash_map->num_items; -} - -void intrusive_hash_map_end(const intrusive_hash_map *hash_map, hm_index *idx) { - idx->bucket_index = (uint32_t)hash_map->buckets.size_; - GPR_ASSERT(idx->bucket_index <= UINT32_MAX); - idx->item = NULL; -} - -void intrusive_hash_map_next(const intrusive_hash_map *hash_map, - hm_index *idx) { - idx->item = idx->item->hash_link; - while (idx->item == NULL) { - idx->bucket_index++; - if (idx->bucket_index >= hash_map->buckets.size_) { - /* Reached end of table. */ - idx->item = NULL; - return; - } - idx->item = (hm_item *)get_bucket(&hash_map->buckets, idx->bucket_index); - } -} - -void intrusive_hash_map_begin(const intrusive_hash_map *hash_map, - hm_index *idx) { - for (uint32_t i = 0; i < hash_map->buckets.size_; ++i) { - if (get_bucket(&hash_map->buckets, i) != NULL) { - idx->bucket_index = i; - idx->item = (hm_item *)get_bucket(&hash_map->buckets, i); - return; - } - } - intrusive_hash_map_end(hash_map, idx); -} - -hm_item *intrusive_hash_map_find(const intrusive_hash_map *hash_map, - uint64_t key) { - uint32_t index = chunked_vector_hasher(key) & hash_map->hash_mask; - - hm_item *p = (hm_item *)get_bucket(&hash_map->buckets, index); - while (p != NULL) { - if (key == p->key) { - return p; - } - p = p->hash_link; - } - return NULL; -} - -hm_item *intrusive_hash_map_erase(intrusive_hash_map *hash_map, uint64_t key) { - uint32_t index = chunked_vector_hasher(key) & hash_map->hash_mask; - - hm_item **slot = (hm_item **)get_mutable_bucket(&hash_map->buckets, index); - hm_item *p = *slot; - if (p == NULL) { - return NULL; - } - - if (key == p->key) { - *slot = p->hash_link; - p->hash_link = NULL; - hash_map->num_items--; - return p; - } - - hm_item *prev = p; - p = p->hash_link; - - while (p) { - if (key == p->key) { - prev->hash_link = p->hash_link; - p->hash_link = NULL; - hash_map->num_items--; - return p; - } - prev = p; - p = p->hash_link; - } - return NULL; -} - -/* Insert an hm_item* into the underlying chunked vector. hash_mask is - * array_size-1. Returns true if it is a new hm_item and false if the hm_item - * already existed. - */ -static __inline bool intrusive_hash_map_internal_insert(chunked_vector *buckets, - uint32_t hash_mask, - hm_item *item) { - const uint64_t key = item->key; - uint32_t index = chunked_vector_hasher(key) & hash_mask; - hm_item **slot = (hm_item **)get_mutable_bucket(buckets, index); - hm_item *p = *slot; - item->hash_link = p; - - /* Check to see if key already exists. */ - while (p) { - if (p->key == key) { - return false; - } - p = p->hash_link; - } - - /* Otherwise add new entry. */ - *slot = item; - return true; -} - -/* Extend the allocated number of elements in the hash map by a factor of 2. */ -void intrusive_hash_map_extend(intrusive_hash_map *hash_map) { - uint32_t new_log2_num_buckets = 1 + hash_map->log2_num_buckets; - uint32_t new_num_buckets = (uint32_t)1 << new_log2_num_buckets; - GPR_ASSERT(new_num_buckets <= UINT32_MAX && new_num_buckets > 0); - chunked_vector new_buckets; - chunked_vector_init(&new_buckets); - chunked_vector_reset(&new_buckets, new_num_buckets); - uint32_t new_hash_mask = new_num_buckets - 1; - - hm_index cur_idx; - hm_index end_idx; - intrusive_hash_map_end(hash_map, &end_idx); - intrusive_hash_map_begin(hash_map, &cur_idx); - while (!hm_index_compare(&cur_idx, &end_idx)) { - hm_item *new_item = cur_idx.item; - intrusive_hash_map_next(hash_map, &cur_idx); - intrusive_hash_map_internal_insert(&new_buckets, new_hash_mask, new_item); - } - - /* Set values for new chunked_vector. extend_threshold is set to half of - * new_num_buckets. */ - hash_map->log2_num_buckets = new_log2_num_buckets; - chunked_vector_clear(&hash_map->buckets); - hash_map->buckets = new_buckets; - hash_map->hash_mask = new_hash_mask; - hash_map->extend_threshold = new_num_buckets >> 1; -} - -/* Insert a hm_item. The hm_item must remain live until it is removed from the - table. This object does not take the ownership of hm_item. The caller must - remove this hm_item from the table and delete it before this table is - deleted. If hm_item exists already num_items is not changed. */ -bool intrusive_hash_map_insert(intrusive_hash_map *hash_map, hm_item *item) { - if (hash_map->num_items >= hash_map->extend_threshold) { - intrusive_hash_map_extend(hash_map); - } - if (intrusive_hash_map_internal_insert(&hash_map->buckets, - hash_map->hash_mask, item)) { - hash_map->num_items++; - return true; - } - return false; -} - -void intrusive_hash_map_clear(intrusive_hash_map *hash_map, - void (*free_object)(void *)) { - hm_index cur; - hm_index end; - intrusive_hash_map_end(hash_map, &end); - intrusive_hash_map_begin(hash_map, &cur); - - while (!hm_index_compare(&cur, &end)) { - hm_index next = cur; - intrusive_hash_map_next(hash_map, &next); - if (cur.item != NULL) { - hm_item *item = intrusive_hash_map_erase(hash_map, cur.item->key); - (*free_object)((void *)item); - gpr_free(item); - } - cur = next; - } -} - -void intrusive_hash_map_free(intrusive_hash_map *hash_map, - void (*free_object)(void *)) { - intrusive_hash_map_clear(hash_map, (*free_object)); - hash_map->num_items = 0; - hash_map->extend_threshold = 0; - hash_map->log2_num_buckets = 0; - hash_map->hash_mask = 0; - chunked_vector_clear(&hash_map->buckets); -} diff --git a/src/core/ext/census/intrusive_hash_map.h b/src/core/ext/census/intrusive_hash_map.h deleted file mode 100644 index 2c7baa31fb..0000000000 --- a/src/core/ext/census/intrusive_hash_map.h +++ /dev/null @@ -1,160 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_H -#define GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_H - -#include "src/core/ext/census/intrusive_hash_map_internal.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* intrusive_hash_map is a fast chained hash table. This hash map is faster than - * a dense hash map when the application calls insert and erase more often than - * find. When the workload is dominated by find() a dense hash map may be - * faster. - * - * intrusive_hash_map uses an intrusive header placed within a user defined - * struct. The header field IHM_key MUST be set to a valid value before - * insertion into the hash map or undefined behavior may occur. The header field - * IHM_hash_link MUST to be set to NULL initially. - * - * EXAMPLE USAGE: - * - * typedef struct string_item { - * INTRUSIVE_HASH_MAP_HEADER; - * // User data. - * char *str_buf; - * uint16_t len; - * } string_item; - * - * static string_item *make_string_item(uint64_t key, const char *buf, - * uint16_t len) { - * string_item *item = (string_item *)gpr_malloc(sizeof(string_item)); - * item->IHM_key = key; - * item->IHM_hash_link = NULL; - * item->len = len; - * item->str_buf = (char *)malloc(len); - * memcpy(item->str_buf, buf, len); - * return item; - * } - * - * intrusive_hash_map hash_map; - * intrusive_hash_map_init(&hash_map, 4); - * string_item *new_item1 = make_string_item(10, "test1", 5); - * bool ok = intrusive_hash_map_insert(&hash_map, (hm_item *)new_item1); - * - * string_item *item1 = - * (string_item *)intrusive_hash_map_find(&hash_map, 10); - */ - -/* Hash map item. Stores key and a pointer to the actual object. A user defined - * version of this can be passed in provided the first 2 entries (key and - * hash_link) are the same. These entries must be first in the user defined - * struct. Pointer to struct will need to be cast as (hm_item *) when passed to - * hash map. This allows it to be intrusive. */ -typedef struct hm_item { - uint64_t key; - struct hm_item *hash_link; - /* Optional user defined data after this. */ -} hm_item; - -/* Macro provided for ease of use. This must be first in the user defined - * struct (i.e. uint64_t key and hm_item * must be the first two elements in - * that order). */ -#define INTRUSIVE_HASH_MAP_HEADER \ - uint64_t IHM_key; \ - struct hm_item *IHM_hash_link - -/* Index struct which acts as a pseudo-iterator within the hash map. */ -typedef struct hm_index { - uint32_t bucket_index; // hash map bucket index. - hm_item *item; // Pointer to hm_item within the hash map. -} hm_index; - -/* Returns true if two hm_indices point to the same object within the hash map - * and false otherwise. */ -__inline bool hm_index_compare(const hm_index *A, const hm_index *B) { - return (A->item == B->item && A->bucket_index == B->bucket_index); -} - -/* - * Helper functions for iterating over the hash map. - */ - -/* On return idx will contain an invalid index which is always equal to - * hash_map->buckets.size_ */ -void intrusive_hash_map_end(const intrusive_hash_map *hash_map, hm_index *idx); - -/* Iterates index to the next valid entry in the hash map and stores the - * index within idx. If end of table is reached, idx will contain the same - * values as if intrusive_hash_map_end() was called. */ -void intrusive_hash_map_next(const intrusive_hash_map *hash_map, hm_index *idx); - -/* On return, idx will contain the index of the first non-null entry in the hash - * map. If the hash map is empty, idx will contain the same values as if - * intrusive_hash_map_end() was called. */ -void intrusive_hash_map_begin(const intrusive_hash_map *hash_map, - hm_index *idx); - -/* Initialize intrusive hash map data structure. This must be called before - * the hash map can be used. The initial size of an intrusive hash map will be - * 2^initial_log2_map_size (valid range is [0, 31]). */ -void intrusive_hash_map_init(intrusive_hash_map *hash_map, - uint32_t initial_log2_map_size); - -/* Returns true if the hash map is empty and false otherwise. */ -bool intrusive_hash_map_empty(const intrusive_hash_map *hash_map); - -/* Returns the number of elements currently in the hash map. */ -size_t intrusive_hash_map_size(const intrusive_hash_map *hash_map); - -/* Find a hm_item within the hash map by key. Returns NULL if item was not - * found. */ -hm_item *intrusive_hash_map_find(const intrusive_hash_map *hash_map, - uint64_t key); - -/* Erase the hm_item that corresponds with key. If the hm_item is found, return - * the pointer to the hm_item. Else returns NULL. */ -hm_item *intrusive_hash_map_erase(intrusive_hash_map *hash_map, uint64_t key); - -/* Attempts to insert a new hm_item into the hash map. If an element with the - * same key already exists, it will not insert the new item and return false. - * Otherwise, it will insert the new item and return true. */ -bool intrusive_hash_map_insert(intrusive_hash_map *hash_map, hm_item *item); - -/* Clears entire contents of the hash map, but leaves internal data structure - * untouched. Second argument takes a function pointer to a function that will - * free the object designated by the user and pointed to by hash_map->value. */ -void intrusive_hash_map_clear(intrusive_hash_map *hash_map, - void (*free_object)(void *)); - -/* Erase all contents of hash map and free the memory. Hash map is invalid - * after calling this function and cannot be used until it has been - * reinitialized (intrusive_hash_map_init()). This function takes a function - * pointer to a function that will free the object designated by the user and - * pointed to by hash_map->value. */ -void intrusive_hash_map_free(intrusive_hash_map *hash_map, - void (*free_object)(void *)); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_H */ diff --git a/src/core/ext/census/intrusive_hash_map_internal.h b/src/core/ext/census/intrusive_hash_map_internal.h deleted file mode 100644 index e9c81fc85c..0000000000 --- a/src/core/ext/census/intrusive_hash_map_internal.h +++ /dev/null @@ -1,48 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_INTERNAL_H -#define GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_INTERNAL_H - -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/useful.h> -#include <stdbool.h> - -/* The chunked vector is a data structure that allocates buckets for use in the - * hash map. ChunkedVector is logically equivalent to T*[N] (cast void* as - * T*). It's internally implemented as an array of 1MB arrays to avoid - * allocating large consecutive memory chunks. This is an internal data - * structure that should never be accessed directly. */ -typedef struct chunked_vector { - size_t size_; - void **first_; - void ***rest_; -} chunked_vector; - -/* Core intrusive hash map data structure. All internal elements are managed by - * functions and should not be altered manually. */ -typedef struct intrusive_hash_map { - uint32_t num_items; - uint32_t extend_threshold; - uint32_t log2_num_buckets; - uint32_t hash_mask; - chunked_vector buckets; -} intrusive_hash_map; - -#endif /* GRPC_CORE_EXT_CENSUS_INTRUSIVE_HASH_MAP_INTERNAL_H */ diff --git a/src/core/ext/census/mlog.cc b/src/core/ext/census/mlog.cc deleted file mode 100644 index 4b8c8466b3..0000000000 --- a/src/core/ext/census/mlog.cc +++ /dev/null @@ -1,586 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -// Implements an efficient in-memory log, optimized for multiple writers and -// a single reader. Available log space is divided up in blocks of -// CENSUS_LOG_2_MAX_RECORD_SIZE bytes. A block can be in one of the following -// three data structures: -// - Free blocks (free_block_list) -// - Blocks with unread data (dirty_block_list) -// - Blocks currently attached to cores (core_local_blocks[]) -// -// census_log_start_write() moves a block from core_local_blocks[] to the end of -// dirty_block_list when block: -// - is out-of-space OR -// - has an incomplete record (an incomplete record occurs when a thread calls -// census_log_start_write() and is context-switched before calling -// census_log_end_write() -// So, blocks in dirty_block_list are ordered, from oldest to newest, by the -// time when block is detached from the core. -// -// census_log_read_next() first iterates over dirty_block_list and then -// core_local_blocks[]. It moves completely read blocks from dirty_block_list -// to free_block_list. Blocks in core_local_blocks[] are not freed, even when -// completely read. -// -// If the log is configured to discard old records and free_block_list is empty, -// census_log_start_write() iterates over dirty_block_list to allocate a -// new block. It moves the oldest available block (no pending read/write) to -// core_local_blocks[]. -// -// core_local_block_struct is used to implement a map from core id to the block -// associated with that core. This mapping is advisory. It is possible that the -// block returned by this mapping is no longer associated with that core. This -// mapping is updated, lazily, by census_log_start_write(). -// -// Locking in block struct: -// -// Exclusive g_log.lock must be held before calling any functions operating on -// block structs except census_log_start_write() and census_log_end_write(). -// -// Writes to a block are serialized via writer_lock. census_log_start_write() -// acquires this lock and census_log_end_write() releases it. On failure to -// acquire the lock, writer allocates a new block for the current core and -// updates core_local_block accordingly. -// -// Simultaneous read and write access is allowed. Readers can safely read up to -// committed bytes (bytes_committed). -// -// reader_lock protects the block, currently being read, from getting recycled. -// start_read() acquires reader_lock and end_read() releases the lock. -// -// Read/write access to a block is disabled via try_disable_access(). It returns -// with both writer_lock and reader_lock held. These locks are subsequently -// released by enable_access() to enable access to the block. -// -// A note on naming: Most function/struct names are prepended by cl_ -// (shorthand for census_log). Further, functions that manipulate structures -// include the name of the structure, which will be passed as the first -// argument. E.g. cl_block_initialize() will initialize a cl_block. - -#include "src/core/ext/census/mlog.h" -#include <grpc/support/alloc.h> -#include <grpc/support/atm.h> -#include <grpc/support/cpu.h> -#include <grpc/support/log.h> -#include <grpc/support/sync.h> -#include <grpc/support/useful.h> -#include <stdbool.h> -#include <string.h> - -// End of platform specific code - -typedef struct census_log_block_list_struct { - struct census_log_block_list_struct* next; - struct census_log_block_list_struct* prev; - struct census_log_block* block; -} cl_block_list_struct; - -typedef struct census_log_block { - // Pointer to underlying buffer. - char* buffer; - gpr_atm writer_lock; - gpr_atm reader_lock; - // Keeps completely written bytes. Declared atomic because accessed - // simultaneously by reader and writer. - gpr_atm bytes_committed; - // Bytes already read. - size_t bytes_read; - // Links for list. - cl_block_list_struct link; -// We want this structure to be cacheline aligned. We assume the following -// sizes for the various parts on 32/64bit systems: -// type 32b size 64b size -// char* 4 8 -// 3x gpr_atm 12 24 -// size_t 4 8 -// cl_block_list_struct 12 24 -// TOTAL 32 64 -// -// Depending on the size of our cacheline and the architecture, we -// selectively add char buffering to this structure. The size is checked -// via assert in census_log_initialize(). -#if defined(GPR_ARCH_64) -#define CL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 64) -#else -#if defined(GPR_ARCH_32) -#define CL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 32) -#else -#error "Unknown architecture" -#endif -#endif -#if CL_BLOCK_PAD_SIZE > 0 - char padding[CL_BLOCK_PAD_SIZE]; -#endif -} cl_block; - -// A list of cl_blocks, doubly-linked through cl_block::link. -typedef struct census_log_block_list { - int32_t count; // Number of items in list. - cl_block_list_struct ht; // head/tail of linked list. -} cl_block_list; - -// Cacheline aligned block pointers to avoid false sharing. Block pointer must -// be initialized via set_block(), before calling other functions -typedef struct census_log_core_local_block { - gpr_atm block; -// Ensure cachline alignment: we assume sizeof(gpr_atm) == 4 or 8 -#if defined(GPR_ARCH_64) -#define CL_CORE_LOCAL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 8) -#else -#if defined(GPR_ARCH_32) -#define CL_CORE_LOCAL_BLOCK_PAD_SIZE (GPR_CACHELINE_SIZE - 4) -#else -#error "Unknown architecture" -#endif -#endif -#if CL_CORE_LOCAL_BLOCK_PAD_SIZE > 0 - char padding[CL_CORE_LOCAL_BLOCK_PAD_SIZE]; -#endif -} cl_core_local_block; - -struct census_log { - int discard_old_records; - // Number of cores (aka hardware-contexts) - unsigned num_cores; - // number of CENSUS_LOG_2_MAX_RECORD_SIZE blocks in log - uint32_t num_blocks; - cl_block* blocks; // Block metadata. - cl_core_local_block* core_local_blocks; // Keeps core to block mappings. - gpr_mu lock; - int initialized; // has log been initialized? - // Keeps the state of the reader iterator. A value of 0 indicates that - // iterator has reached the end. census_log_init_reader() resets the value - // to num_core to restart iteration. - uint32_t read_iterator_state; - // Points to the block being read. If non-NULL, the block is locked for - // reading(block_being_read_->reader_lock is held). - cl_block* block_being_read; - char* buffer; - cl_block_list free_block_list; - cl_block_list dirty_block_list; - gpr_atm out_of_space_count; -}; - -// Single internal log. -static struct census_log g_log; - -// Functions that operate on an atomic memory location used as a lock. - -// Returns non-zero if lock is acquired. -static int cl_try_lock(gpr_atm* lock) { return gpr_atm_acq_cas(lock, 0, 1); } - -static void cl_unlock(gpr_atm* lock) { gpr_atm_rel_store(lock, 0); } - -// Functions that operate on cl_core_local_block's. - -static void cl_core_local_block_set_block(cl_core_local_block* clb, - cl_block* block) { - gpr_atm_rel_store(&clb->block, (gpr_atm)block); -} - -static cl_block* cl_core_local_block_get_block(cl_core_local_block* clb) { - return (cl_block*)gpr_atm_acq_load(&clb->block); -} - -// Functions that operate on cl_block_list_struct's. - -static void cl_block_list_struct_initialize(cl_block_list_struct* bls, - cl_block* block) { - bls->next = bls->prev = bls; - bls->block = block; -} - -// Functions that operate on cl_block_list's. - -static void cl_block_list_initialize(cl_block_list* list) { - list->count = 0; - cl_block_list_struct_initialize(&list->ht, NULL); -} - -// Returns head of *this, or NULL if empty. -static cl_block* cl_block_list_head(cl_block_list* list) { - return list->ht.next->block; -} - -// Insert element *e after *pos. -static void cl_block_list_insert(cl_block_list* list, cl_block_list_struct* pos, - cl_block_list_struct* e) { - list->count++; - e->next = pos->next; - e->prev = pos; - e->next->prev = e; - e->prev->next = e; -} - -// Insert block at the head of the list -static void cl_block_list_insert_at_head(cl_block_list* list, cl_block* block) { - cl_block_list_insert(list, &list->ht, &block->link); -} - -// Insert block at the tail of the list. -static void cl_block_list_insert_at_tail(cl_block_list* list, cl_block* block) { - cl_block_list_insert(list, list->ht.prev, &block->link); -} - -// Removes block *b. Requires *b be in the list. -static void cl_block_list_remove(cl_block_list* list, cl_block* b) { - list->count--; - b->link.next->prev = b->link.prev; - b->link.prev->next = b->link.next; -} - -// Functions that operate on cl_block's - -static void cl_block_initialize(cl_block* block, char* buffer) { - block->buffer = buffer; - gpr_atm_rel_store(&block->writer_lock, 0); - gpr_atm_rel_store(&block->reader_lock, 0); - gpr_atm_rel_store(&block->bytes_committed, 0); - block->bytes_read = 0; - cl_block_list_struct_initialize(&block->link, block); -} - -// Guards against exposing partially written buffer to the reader. -static void cl_block_set_bytes_committed(cl_block* block, - size_t bytes_committed) { - gpr_atm_rel_store(&block->bytes_committed, (gpr_atm)bytes_committed); -} - -static size_t cl_block_get_bytes_committed(cl_block* block) { - return (size_t)gpr_atm_acq_load(&block->bytes_committed); -} - -// Tries to disable future read/write access to this block. Succeeds if: -// - no in-progress write AND -// - no in-progress read AND -// - 'discard_data' set to true OR no unread data -// On success, clears the block state and returns with writer_lock_ and -// reader_lock_ held. These locks are released by a subsequent -// cl_block_access_enable() call. -static bool cl_block_try_disable_access(cl_block* block, int discard_data) { - if (!cl_try_lock(&block->writer_lock)) { - return false; - } - if (!cl_try_lock(&block->reader_lock)) { - cl_unlock(&block->writer_lock); - return false; - } - if (!discard_data && - (block->bytes_read != cl_block_get_bytes_committed(block))) { - cl_unlock(&block->reader_lock); - cl_unlock(&block->writer_lock); - return false; - } - cl_block_set_bytes_committed(block, 0); - block->bytes_read = 0; - return true; -} - -static void cl_block_enable_access(cl_block* block) { - cl_unlock(&block->reader_lock); - cl_unlock(&block->writer_lock); -} - -// Returns with writer_lock held. -static void* cl_block_start_write(cl_block* block, size_t size) { - if (!cl_try_lock(&block->writer_lock)) { - return NULL; - } - size_t bytes_committed = cl_block_get_bytes_committed(block); - if (bytes_committed + size > CENSUS_LOG_MAX_RECORD_SIZE) { - cl_unlock(&block->writer_lock); - return NULL; - } - return block->buffer + bytes_committed; -} - -// Releases writer_lock and increments committed bytes by 'bytes_written'. -// 'bytes_written' must be <= 'size' specified in the corresponding -// StartWrite() call. This function is thread-safe. -static void cl_block_end_write(cl_block* block, size_t bytes_written) { - cl_block_set_bytes_committed( - block, cl_block_get_bytes_committed(block) + bytes_written); - cl_unlock(&block->writer_lock); -} - -// Returns a pointer to the first unread byte in buffer. The number of bytes -// available are returned in 'bytes_available'. Acquires reader lock that is -// released by a subsequent cl_block_end_read() call. Returns NULL if: -// - read in progress -// - no data available -static void* cl_block_start_read(cl_block* block, size_t* bytes_available) { - if (!cl_try_lock(&block->reader_lock)) { - return NULL; - } - // bytes_committed may change from under us. Use bytes_available to update - // bytes_read below. - size_t bytes_committed = cl_block_get_bytes_committed(block); - GPR_ASSERT(bytes_committed >= block->bytes_read); - *bytes_available = bytes_committed - block->bytes_read; - if (*bytes_available == 0) { - cl_unlock(&block->reader_lock); - return NULL; - } - void* record = block->buffer + block->bytes_read; - block->bytes_read += *bytes_available; - return record; -} - -static void cl_block_end_read(cl_block* block) { - cl_unlock(&block->reader_lock); -} - -// Internal functions operating on g_log - -// Allocates a new free block (or recycles an available dirty block if log is -// configured to discard old records). Returns NULL if out-of-space. -static cl_block* cl_allocate_block(void) { - cl_block* block = cl_block_list_head(&g_log.free_block_list); - if (block != NULL) { - cl_block_list_remove(&g_log.free_block_list, block); - return block; - } - if (!g_log.discard_old_records) { - // No free block and log is configured to keep old records. - return NULL; - } - // Recycle dirty block. Start from the oldest. - for (block = cl_block_list_head(&g_log.dirty_block_list); block != NULL; - block = block->link.next->block) { - if (cl_block_try_disable_access(block, 1 /* discard data */)) { - cl_block_list_remove(&g_log.dirty_block_list, block); - return block; - } - } - return NULL; -} - -// Allocates a new block and updates core id => block mapping. 'old_block' -// points to the block that the caller thinks is attached to -// 'core_id'. 'old_block' may be NULL. Returns true if: -// - allocated a new block OR -// - 'core_id' => 'old_block' mapping changed (another thread allocated a -// block before lock was acquired). -static bool cl_allocate_core_local_block(uint32_t core_id, - cl_block* old_block) { - // Now that we have the lock, check if core-local mapping has changed. - cl_core_local_block* core_local_block = &g_log.core_local_blocks[core_id]; - cl_block* block = cl_core_local_block_get_block(core_local_block); - if ((block != NULL) && (block != old_block)) { - return true; - } - if (block != NULL) { - cl_core_local_block_set_block(core_local_block, NULL); - cl_block_list_insert_at_tail(&g_log.dirty_block_list, block); - } - block = cl_allocate_block(); - if (block == NULL) { - return false; - } - cl_core_local_block_set_block(core_local_block, block); - cl_block_enable_access(block); - return true; -} - -static cl_block* cl_get_block(void* record) { - uintptr_t p = (uintptr_t)((char*)record - g_log.buffer); - uintptr_t index = p >> CENSUS_LOG_2_MAX_RECORD_SIZE; - return &g_log.blocks[index]; -} - -// Gets the next block to read and tries to free 'prev' block (if not NULL). -// Returns NULL if reached the end. -static cl_block* cl_next_block_to_read(cl_block* prev) { - cl_block* block = NULL; - if (g_log.read_iterator_state == g_log.num_cores) { - // We are traversing dirty list; find the next dirty block. - if (prev != NULL) { - // Try to free the previous block if there is no unread data. This - // block - // may have unread data if previously incomplete record completed - // between - // read_next() calls. - block = prev->link.next->block; - if (cl_block_try_disable_access(prev, 0 /* do not discard data */)) { - cl_block_list_remove(&g_log.dirty_block_list, prev); - cl_block_list_insert_at_head(&g_log.free_block_list, prev); - } - } else { - block = cl_block_list_head(&g_log.dirty_block_list); - } - if (block != NULL) { - return block; - } - // We are done with the dirty list; moving on to core-local blocks. - } - while (g_log.read_iterator_state > 0) { - g_log.read_iterator_state--; - block = cl_core_local_block_get_block( - &g_log.core_local_blocks[g_log.read_iterator_state]); - if (block != NULL) { - return block; - } - } - return NULL; -} - -#define CL_LOG_2_MB 20 // 2^20 = 1MB - -// External functions: primary stats_log interface -void census_log_initialize(size_t size_in_mb, int discard_old_records) { - // Check cacheline alignment. - GPR_ASSERT(sizeof(cl_block) % GPR_CACHELINE_SIZE == 0); - GPR_ASSERT(sizeof(cl_core_local_block) % GPR_CACHELINE_SIZE == 0); - GPR_ASSERT(!g_log.initialized); - g_log.discard_old_records = discard_old_records; - g_log.num_cores = gpr_cpu_num_cores(); - // Ensure that we will not get any overflow in calaculating num_blocks - GPR_ASSERT(CL_LOG_2_MB >= CENSUS_LOG_2_MAX_RECORD_SIZE); - GPR_ASSERT(size_in_mb < 1000); - // Ensure at least 2x as many blocks as there are cores. - g_log.num_blocks = - (uint32_t)GPR_MAX(2 * g_log.num_cores, (size_in_mb << CL_LOG_2_MB) >> - CENSUS_LOG_2_MAX_RECORD_SIZE); - gpr_mu_init(&g_log.lock); - g_log.read_iterator_state = 0; - g_log.block_being_read = NULL; - g_log.core_local_blocks = (cl_core_local_block*)gpr_malloc_aligned( - g_log.num_cores * sizeof(cl_core_local_block), GPR_CACHELINE_SIZE_LOG); - memset(g_log.core_local_blocks, 0, - g_log.num_cores * sizeof(cl_core_local_block)); - g_log.blocks = (cl_block*)gpr_malloc_aligned( - g_log.num_blocks * sizeof(cl_block), GPR_CACHELINE_SIZE_LOG); - memset(g_log.blocks, 0, g_log.num_blocks * sizeof(cl_block)); - g_log.buffer = - (char*)gpr_malloc(g_log.num_blocks * CENSUS_LOG_MAX_RECORD_SIZE); - memset(g_log.buffer, 0, g_log.num_blocks * CENSUS_LOG_MAX_RECORD_SIZE); - cl_block_list_initialize(&g_log.free_block_list); - cl_block_list_initialize(&g_log.dirty_block_list); - for (uint32_t i = 0; i < g_log.num_blocks; ++i) { - cl_block* block = g_log.blocks + i; - cl_block_initialize(block, g_log.buffer + (CENSUS_LOG_MAX_RECORD_SIZE * i)); - cl_block_try_disable_access(block, 1 /* discard data */); - cl_block_list_insert_at_tail(&g_log.free_block_list, block); - } - gpr_atm_rel_store(&g_log.out_of_space_count, 0); - g_log.initialized = 1; -} - -void census_log_shutdown(void) { - GPR_ASSERT(g_log.initialized); - gpr_mu_destroy(&g_log.lock); - gpr_free_aligned(g_log.core_local_blocks); - g_log.core_local_blocks = NULL; - gpr_free_aligned(g_log.blocks); - g_log.blocks = NULL; - gpr_free(g_log.buffer); - g_log.buffer = NULL; - g_log.initialized = 0; -} - -void* census_log_start_write(size_t size) { - // Used to bound number of times block allocation is attempted. - GPR_ASSERT(size > 0); - GPR_ASSERT(g_log.initialized); - if (size > CENSUS_LOG_MAX_RECORD_SIZE) { - return NULL; - } - uint32_t attempts_remaining = g_log.num_blocks; - uint32_t core_id = gpr_cpu_current_cpu(); - do { - void* record = NULL; - cl_block* block = - cl_core_local_block_get_block(&g_log.core_local_blocks[core_id]); - if (block && (record = cl_block_start_write(block, size))) { - return record; - } - // Need to allocate a new block. We are here if: - // - No block associated with the core OR - // - Write in-progress on the block OR - // - block is out of space - gpr_mu_lock(&g_log.lock); - bool allocated = cl_allocate_core_local_block(core_id, block); - gpr_mu_unlock(&g_log.lock); - if (!allocated) { - gpr_atm_no_barrier_fetch_add(&g_log.out_of_space_count, 1); - return NULL; - } - } while (attempts_remaining--); - // Give up. - gpr_atm_no_barrier_fetch_add(&g_log.out_of_space_count, 1); - return NULL; -} - -void census_log_end_write(void* record, size_t bytes_written) { - GPR_ASSERT(g_log.initialized); - cl_block_end_write(cl_get_block(record), bytes_written); -} - -void census_log_init_reader(void) { - GPR_ASSERT(g_log.initialized); - gpr_mu_lock(&g_log.lock); - // If a block is locked for reading unlock it. - if (g_log.block_being_read != NULL) { - cl_block_end_read(g_log.block_being_read); - g_log.block_being_read = NULL; - } - g_log.read_iterator_state = g_log.num_cores; - gpr_mu_unlock(&g_log.lock); -} - -const void* census_log_read_next(size_t* bytes_available) { - GPR_ASSERT(g_log.initialized); - gpr_mu_lock(&g_log.lock); - if (g_log.block_being_read != NULL) { - cl_block_end_read(g_log.block_being_read); - } - do { - g_log.block_being_read = cl_next_block_to_read(g_log.block_being_read); - if (g_log.block_being_read != NULL) { - void* record = - cl_block_start_read(g_log.block_being_read, bytes_available); - if (record != NULL) { - gpr_mu_unlock(&g_log.lock); - return record; - } - } - } while (g_log.block_being_read != NULL); - gpr_mu_unlock(&g_log.lock); - return NULL; -} - -size_t census_log_remaining_space(void) { - GPR_ASSERT(g_log.initialized); - size_t space = 0; - gpr_mu_lock(&g_log.lock); - if (g_log.discard_old_records) { - // Remaining space is not meaningful; just return the entire log space. - space = g_log.num_blocks << CENSUS_LOG_2_MAX_RECORD_SIZE; - } else { - GPR_ASSERT(g_log.free_block_list.count >= 0); - space = (size_t)g_log.free_block_list.count * CENSUS_LOG_MAX_RECORD_SIZE; - } - gpr_mu_unlock(&g_log.lock); - return space; -} - -int64_t census_log_out_of_space_count(void) { - GPR_ASSERT(g_log.initialized); - return gpr_atm_acq_load(&g_log.out_of_space_count); -} diff --git a/src/core/ext/census/mlog.h b/src/core/ext/census/mlog.h deleted file mode 100644 index 8f74ba231d..0000000000 --- a/src/core/ext/census/mlog.h +++ /dev/null @@ -1,88 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -/* A very fast in-memory log, optimized for multiple writers. */ - -#ifndef GRPC_CORE_EXT_CENSUS_MLOG_H -#define GRPC_CORE_EXT_CENSUS_MLOG_H - -#include <grpc/support/port_platform.h> -#include <stddef.h> - -/* Maximum record size, in bytes. */ -#define CENSUS_LOG_2_MAX_RECORD_SIZE 14 /* 2^14 = 16KB */ -#define CENSUS_LOG_MAX_RECORD_SIZE (1 << CENSUS_LOG_2_MAX_RECORD_SIZE) - -#ifdef __cplusplus -extern "C" { -#endif - -/* Initialize the statistics logging subsystem with the given log size. A log - size of 0 will result in the smallest possible log for the platform - (approximately CENSUS_LOG_MAX_RECORD_SIZE * gpr_cpu_num_cores()). If - discard_old_records is non-zero, then new records will displace older ones - when the log is full. This function must be called before any other - census_log functions. -*/ -void census_log_initialize(size_t size_in_mb, int discard_old_records); - -/* Shutdown the logging subsystem. Caller must ensure that: - - no in progress or future call to any census_log functions - - no incomplete records -*/ -void census_log_shutdown(void); - -/* Allocates and returns a 'size' bytes record and marks it in use. A - subsequent census_log_end_write() marks the record complete. The - 'bytes_written' census_log_end_write() argument must be <= - 'size'. Returns NULL if out-of-space AND: - - log is configured to keep old records OR - - all blocks are pinned by incomplete records. -*/ -void* census_log_start_write(size_t size); - -void census_log_end_write(void* record, size_t bytes_written); - -void census_log_init_reader(void); - -/* census_log_read_next() iterates over blocks with data and for each block - returns a pointer to the first unread byte. The number of bytes that can be - read are returned in 'bytes_available'. Reader is expected to read all - available data. Reading the data consumes it i.e. it cannot be read again. - census_log_read_next() returns NULL if the end is reached i.e last block - is read. census_log_init_reader() starts the iteration or aborts the - current iteration. -*/ -const void* census_log_read_next(size_t* bytes_available); - -/* Returns estimated remaining space across all blocks, in bytes. If log is - configured to discard old records, returns total log space. Otherwise, - returns space available in empty blocks (partially filled blocks are - treated as full). -*/ -size_t census_log_remaining_space(void); - -/* Returns the number of times grpc_stats_log_start_write() failed due to - out-of-space. */ -int64_t census_log_out_of_space_count(void); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_MLOG_H */ diff --git a/src/core/ext/census/operation.cc b/src/core/ext/census/operation.cc deleted file mode 100644 index be88ac74e6..0000000000 --- a/src/core/ext/census/operation.cc +++ /dev/null @@ -1,48 +0,0 @@ -/* - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <grpc/census.h> - -/* TODO(aveitch): These are all placeholder implementations. */ - -census_timestamp census_start_rpc_op_timestamp(void) { - census_timestamp ct; - /* TODO(aveitch): assumes gpr_timespec implementation of census_timestamp. */ - ct.ts = gpr_now(GPR_CLOCK_MONOTONIC); - return ct; -} - -census_context *census_start_client_rpc_op( - const census_context *context, int64_t rpc_name_id, - const census_rpc_name_info *rpc_name_info, const char *peer, int trace_mask, - const census_timestamp *start_time) { - return NULL; -} - -census_context *census_start_server_rpc_op( - const char *buffer, int64_t rpc_name_id, - const census_rpc_name_info *rpc_name_info, const char *peer, int trace_mask, - census_timestamp *start_time) { - return NULL; -} - -census_context *census_start_op(census_context *context, const char *family, - const char *name, int trace_mask) { - return NULL; -} - -void census_end_op(census_context *context, int status) {} diff --git a/src/core/ext/census/placeholders.cc b/src/core/ext/census/placeholders.cc deleted file mode 100644 index bed9837ee3..0000000000 --- a/src/core/ext/census/placeholders.cc +++ /dev/null @@ -1,49 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include <grpc/census.h> - -#include <grpc/support/log.h> - -/* Placeholders for the pending APIs */ - -int census_get_trace_record(census_trace_record *trace_record) { - (void)trace_record; - abort(); -} - -void census_record_values(census_context *context, census_value *values, - size_t nvalues) { - (void)context; - (void)values; - (void)nvalues; - abort(); -} - -void census_set_rpc_client_peer(census_context *context, const char *peer) { - (void)context; - (void)peer; - abort(); -} - -void census_trace_scan_end() { abort(); } - -int census_trace_scan_start(int consume) { - (void)consume; - abort(); -} diff --git a/src/core/ext/census/resource.cc b/src/core/ext/census/resource.cc deleted file mode 100644 index 44a887231c..0000000000 --- a/src/core/ext/census/resource.cc +++ /dev/null @@ -1,303 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/resource.h" -#include "third_party/nanopb/pb_decode.h" - -#include <grpc/census.h> -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/sync.h> - -#include <stdbool.h> -#include <string.h> - -// Protect local resource data structures. -static gpr_mu resource_lock; - -// Deleteing and creating resources are relatively rare events, and should not -// be done in the critical path of performance sensitive code. We record -// current resource id's used in a simple array, and just search it each time -// we need to assign a new id, or look up a resource. -static resource **resources = NULL; - -// Number of entries in *resources -static size_t n_resources = 0; - -// Number of defined resources -static size_t n_defined_resources = 0; - -void initialize_resources(void) { - gpr_mu_init(&resource_lock); - gpr_mu_lock(&resource_lock); - GPR_ASSERT(resources == NULL && n_resources == 0 && n_defined_resources == 0); - gpr_mu_unlock(&resource_lock); -} - -// Delete a resource given it's ID. The ID must be a valid resource ID. Must be -// called with resource_lock held. -static void delete_resource_locked(size_t rid) { - GPR_ASSERT(resources[rid] != NULL); - gpr_free(resources[rid]->name); - gpr_free(resources[rid]->description); - gpr_free(resources[rid]->numerators); - gpr_free(resources[rid]->denominators); - gpr_free(resources[rid]); - resources[rid] = NULL; - n_defined_resources--; -} - -void shutdown_resources(void) { - gpr_mu_lock(&resource_lock); - for (size_t i = 0; i < n_resources; i++) { - if (resources[i] != NULL) { - delete_resource_locked(i); - } - } - GPR_ASSERT(n_defined_resources == 0); - gpr_free(resources); - resources = NULL; - n_resources = 0; - gpr_mu_unlock(&resource_lock); -} - -// Check the contents of string fields in a resource proto. -static bool validate_string(pb_istream_t *stream, const pb_field_t *field, - void **arg) { - resource *vresource = (resource *)*arg; - switch (field->tag) { - case google_census_Resource_name_tag: - // Name must have at least one character - if (stream->bytes_left == 0) { - gpr_log(GPR_INFO, "Zero-length Resource name."); - return false; - } - vresource->name = (char *)gpr_malloc(stream->bytes_left + 1); - vresource->name[stream->bytes_left] = '\0'; - if (!pb_read(stream, (uint8_t *)vresource->name, stream->bytes_left)) { - return false; - } - // Can't have same name as an existing resource. - for (size_t i = 0; i < n_resources; i++) { - resource *compare = resources[i]; - if (compare == vresource || compare == NULL) continue; - if (strcmp(compare->name, vresource->name) == 0) { - gpr_log(GPR_INFO, "Duplicate Resource name %s.", vresource->name); - return false; - } - } - break; - case google_census_Resource_description_tag: - if (stream->bytes_left == 0) { - return true; - } - vresource->description = (char *)gpr_malloc(stream->bytes_left + 1); - vresource->description[stream->bytes_left] = '\0'; - if (!pb_read(stream, (uint8_t *)vresource->description, - stream->bytes_left)) { - return false; - } - break; - default: - // No other string fields in Resource. Print warning and skip. - gpr_log(GPR_INFO, "Unknown string field type in Resource protobuf."); - if (!pb_read(stream, NULL, stream->bytes_left)) { - return false; - } - break; - } - return true; -} - -// Decode numerators/denominators in a stream. The `count` and `bup` -// (BasicUnit pointer) are pointers to the approriate fields in a resource -// struct. -static bool validate_units_helper(pb_istream_t *stream, int *count, - google_census_Resource_BasicUnit **bup) { - while (stream->bytes_left) { - (*count)++; - // Have to allocate a new array of values. Normal case is 0 or 1, so - // this should normally not be an issue. - google_census_Resource_BasicUnit *new_bup = - (google_census_Resource_BasicUnit *)gpr_malloc( - (size_t)*count * sizeof(google_census_Resource_BasicUnit)); - if (*count != 1) { - memcpy(new_bup, *bup, - (size_t)(*count - 1) * sizeof(google_census_Resource_BasicUnit)); - gpr_free(*bup); - } - *bup = new_bup; - uint64_t value; - if (!pb_decode_varint(stream, &value)) { - return false; - } - *(*bup + *count - 1) = (google_census_Resource_BasicUnit)value; - } - return true; -} - -// Validate units field of a Resource proto. -static bool validate_units(pb_istream_t *stream, const pb_field_t *field, - void **arg) { - resource *vresource = (resource *)(*arg); - switch (field->tag) { - case google_census_Resource_MeasurementUnit_numerator_tag: - return validate_units_helper(stream, &vresource->n_numerators, - &vresource->numerators); - break; - case google_census_Resource_MeasurementUnit_denominator_tag: - return validate_units_helper(stream, &vresource->n_denominators, - &vresource->denominators); - break; - default: - gpr_log(GPR_ERROR, "Unknown field type."); - return false; - break; - } - return true; -} - -// Validate the contents of a Resource proto. `id` is the intended resource id. -static bool validate_resource_pb(const uint8_t *resource_pb, - size_t resource_pb_size, size_t id) { - GPR_ASSERT(id < n_resources); - if (resource_pb == NULL) { - return false; - } - google_census_Resource vresource; - vresource.name.funcs.decode = &validate_string; - vresource.name.arg = resources[id]; - vresource.description.funcs.decode = &validate_string; - vresource.description.arg = resources[id]; - vresource.unit.numerator.funcs.decode = &validate_units; - vresource.unit.numerator.arg = resources[id]; - vresource.unit.denominator.funcs.decode = &validate_units; - vresource.unit.denominator.arg = resources[id]; - - pb_istream_t stream = - pb_istream_from_buffer((uint8_t *)resource_pb, resource_pb_size); - if (!pb_decode(&stream, google_census_Resource_fields, &vresource)) { - return false; - } - // A Resource must have a name, a unit, with at least one numerator. - return (resources[id]->name != NULL && vresource.has_unit && - resources[id]->n_numerators > 0); -} - -// Allocate a blank resource, and return associated ID. Must be called with -// resource_lock held. -size_t allocate_resource(void) { - // use next_id to optimize expected placement of next new resource. - static size_t next_id = 0; - size_t id = n_resources; // resource ID - initialize to invalid value. - // Expand resources if needed. - if (n_resources == n_defined_resources) { - size_t new_n_resources = n_resources ? n_resources * 2 : 2; - resource **new_resources = - (resource **)gpr_malloc(new_n_resources * sizeof(resource *)); - if (n_resources != 0) { - memcpy(new_resources, resources, n_resources * sizeof(resource *)); - } - memset(new_resources + n_resources, 0, - (new_n_resources - n_resources) * sizeof(resource *)); - gpr_free(resources); - resources = new_resources; - n_resources = new_n_resources; - id = n_defined_resources; - } else { - GPR_ASSERT(n_defined_resources < n_resources); - // Find a free id. - for (size_t base = 0; base < n_resources; base++) { - id = (next_id + base) % n_resources; - if (resources[id] == NULL) break; - } - } - GPR_ASSERT(id < n_resources && resources[id] == NULL); - resources[id] = (resource *)gpr_malloc(sizeof(resource)); - memset(resources[id], 0, sizeof(resource)); - n_defined_resources++; - next_id = (id + 1) % n_resources; - return id; -} - -int32_t census_define_resource(const uint8_t *resource_pb, - size_t resource_pb_size) { - if (resource_pb == NULL) { - return -1; - } - gpr_mu_lock(&resource_lock); - size_t id = allocate_resource(); - // Validate pb, extract name. - if (!validate_resource_pb(resource_pb, resource_pb_size, id)) { - delete_resource_locked(id); - gpr_mu_unlock(&resource_lock); - return -1; - } - gpr_mu_unlock(&resource_lock); - return (int32_t)id; -} - -void census_delete_resource(int32_t rid) { - gpr_mu_lock(&resource_lock); - if (rid >= 0 && (size_t)rid < n_resources && resources[rid] != NULL) { - delete_resource_locked((size_t)rid); - } - gpr_mu_unlock(&resource_lock); -} - -int32_t census_resource_id(const char *name) { - gpr_mu_lock(&resource_lock); - for (int32_t id = 0; (size_t)id < n_resources; id++) { - if (resources[id] != NULL && strcmp(resources[id]->name, name) == 0) { - gpr_mu_unlock(&resource_lock); - return id; - } - } - gpr_mu_unlock(&resource_lock); - return -1; -} - -int32_t define_resource(const resource *base) { - GPR_ASSERT(base != NULL && base->name != NULL && base->n_numerators > 0 && - base->numerators != NULL); - gpr_mu_lock(&resource_lock); - size_t id = allocate_resource(); - size_t len = strlen(base->name) + 1; - resources[id]->name = (char *)gpr_malloc(len); - memcpy(resources[id]->name, base->name, len); - if (base->description) { - len = strlen(base->description) + 1; - resources[id]->description = (char *)gpr_malloc(len); - memcpy(resources[id]->description, base->description, len); - } - resources[id]->prefix = base->prefix; - resources[id]->n_numerators = base->n_numerators; - len = (size_t)base->n_numerators * sizeof(*base->numerators); - resources[id]->numerators = - (google_census_Resource_BasicUnit *)gpr_malloc(len); - memcpy(resources[id]->numerators, base->numerators, len); - resources[id]->n_denominators = base->n_denominators; - if (base->n_denominators != 0) { - len = (size_t)base->n_denominators * sizeof(*base->denominators); - resources[id]->denominators = - (google_census_Resource_BasicUnit *)gpr_malloc(len); - memcpy(resources[id]->denominators, base->denominators, len); - } - gpr_mu_unlock(&resource_lock); - return (int32_t)id; -} diff --git a/src/core/ext/census/resource.h b/src/core/ext/census/resource.h deleted file mode 100644 index 56aaaaf750..0000000000 --- a/src/core/ext/census/resource.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -/* Census-internal resource definition and manipluation functions. */ -#ifndef GRPC_CORE_EXT_CENSUS_RESOURCE_H -#define GRPC_CORE_EXT_CENSUS_RESOURCE_H - -#include <grpc/grpc.h> -#include "src/core/ext/census/gen/census.pb.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Internal representation of a resource. */ -typedef struct { - char *name; - char *description; - int32_t prefix; - int n_numerators; - google_census_Resource_BasicUnit *numerators; - int n_denominators; - google_census_Resource_BasicUnit *denominators; -} resource; - -/* Initialize and shutdown the resources subsystem. */ -void initialize_resources(void); -void shutdown_resources(void); - -/* Add a new resource, given a proposed resource structure. Returns the - resource ID, or -ve on failure. - TODO(aveitch): this function exists to support addition of the base - resources. It should be removed when we have the ability to add resources - from configuration files. */ -int32_t define_resource(const resource *base); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_RESOURCE_H */ diff --git a/src/core/ext/census/rpc_metric_id.h b/src/core/ext/census/rpc_metric_id.h deleted file mode 100644 index ea493d7288..0000000000 --- a/src/core/ext/census/rpc_metric_id.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_RPC_METRIC_ID_H -#define GRPC_CORE_EXT_CENSUS_RPC_METRIC_ID_H - -/* Metric ID's used for RPC measurements. */ -/* Count of client requests sent. */ -#define CENSUS_METRIC_RPC_CLIENT_REQUESTS ((uint32_t)0) -/* Count of server requests sent. */ -#define CENSUS_METRIC_RPC_SERVER_REQUESTS ((uint32_t)1) -/* Client error counts. */ -#define CENSUS_METRIC_RPC_CLIENT_ERRORS ((uint32_t)2) -/* Server error counts. */ -#define CENSUS_METRIC_RPC_SERVER_ERRORS ((uint32_t)3) -/* Client side request latency. */ -#define CENSUS_METRIC_RPC_CLIENT_LATENCY ((uint32_t)4) -/* Server side request latency. */ -#define CENSUS_METRIC_RPC_SERVER_LATENCY ((uint32_t)5) - -#endif /* GRPC_CORE_EXT_CENSUS_RPC_METRIC_ID_H */ diff --git a/src/core/ext/census/trace_context.cc b/src/core/ext/census/trace_context.cc deleted file mode 100644 index af92ae6d9e..0000000000 --- a/src/core/ext/census/trace_context.cc +++ /dev/null @@ -1,71 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/trace_context.h" - -#include <grpc/census.h> -#include <grpc/support/log.h> -#include <stdbool.h> - -#include "third_party/nanopb/pb_decode.h" -#include "third_party/nanopb/pb_encode.h" - -// This function assumes the TraceContext is valid. -size_t encode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, - const size_t buf_size) { - // Create a stream that will write to our buffer. - pb_ostream_t stream = pb_ostream_from_buffer(buffer, buf_size); - - // encode message - bool status = pb_encode(&stream, google_trace_TraceContext_fields, ctxt); - - if (!status) { - gpr_log(GPR_DEBUG, "TraceContext encoding failed: %s", - PB_GET_ERROR(&stream)); - return 0; - } - - return stream.bytes_written; -} - -bool decode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, - const size_t nbytes) { - // Create a stream that reads nbytes from the buffer. - pb_istream_t stream = pb_istream_from_buffer(buffer, nbytes); - - // decode message - bool status = pb_decode(&stream, google_trace_TraceContext_fields, ctxt); - - if (!status) { - gpr_log(GPR_DEBUG, "TraceContext decoding failed: %s", - PB_GET_ERROR(&stream)); - return false; - } - - // check fields - if (!ctxt->has_trace_id_hi || !ctxt->has_trace_id_lo) { - gpr_log(GPR_DEBUG, "Invalid TraceContext: missing trace_id"); - return false; - } - if (!ctxt->has_span_id) { - gpr_log(GPR_DEBUG, "Invalid TraceContext: missing span_id"); - return false; - } - - return true; -} diff --git a/src/core/ext/census/trace_context.h b/src/core/ext/census/trace_context.h deleted file mode 100644 index 2b828ba4da..0000000000 --- a/src/core/ext/census/trace_context.h +++ /dev/null @@ -1,64 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -/* Functions for manipulating trace contexts as defined in - src/proto/census/trace.proto */ -#ifndef GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H -#define GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H - -#include "src/core/ext/census/gen/trace_context.pb.h" - -/* Span option flags. */ -#define SPAN_OPTIONS_IS_SAMPLED 0x01 - -/* Maximum number of bytes required to encode a TraceContext (31) -1 byte for trace_id field -1 byte for trace_id length -1 byte for trace_id.hi field -8 bytes for trace_id.hi (uint64_t) -1 byte for trace_id.lo field -8 bytes for trace_id.lo (uint64_t) -1 byte for span_id field -8 bytes for span_id (uint64_t) -1 byte for is_sampled field -1 byte for is_sampled (bool) */ -#define TRACE_MAX_CONTEXT_SIZE 31 - -#ifdef __cplusplus -extern "C" { -#endif - -/* Encode a trace context (ctxt) into proto format to the buffer provided. The -size of buffer must be at least TRACE_MAX_CONTEXT_SIZE. On success, returns the -number of bytes successfully encoded into buffer. On failure, returns 0. */ -size_t encode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, - const size_t buf_size); - -/* Decode a proto-encoded TraceContext from the provided buffer into the -TraceContext structure (ctxt). The function expects to be supplied the number -of bytes to be read from buffer (nbytes). This function will also validate that -the TraceContext has a span_id and a trace_id, and will return false if either -of these do not exist. On success, returns true and false otherwise. */ -bool decode_trace_context(google_trace_TraceContext *ctxt, uint8_t *buffer, - const size_t nbytes); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_TRACE_CONTEXT_H */ diff --git a/src/core/ext/census/trace_label.h b/src/core/ext/census/trace_label.h deleted file mode 100644 index 97ce399eb5..0000000000 --- a/src/core/ext/census/trace_label.h +++ /dev/null @@ -1,46 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_TRACE_LABEL_H -#define GRPC_CORE_EXT_CENSUS_TRACE_LABEL_H - -#include "src/core/ext/census/trace_string.h" - -/* Trace label (key/value pair) stores a label name and the label value. The - value can be one of trace_string/int64_t/bool. */ -typedef struct trace_label { - trace_string key; - enum label_type { - /* Unknown value for debugging/error purposes */ - LABEL_UNKNOWN = 0, - /* A string value */ - LABEL_STRING = 1, - /* An integer value. */ - LABEL_INT = 2, - /* A boolean value. */ - LABEL_BOOL = 3, - } value_type; - - union value { - trace_string label_str; - int64_t label_int; - bool label_bool; - } value; -} trace_label; - -#endif /* GRPC_CORE_EXT_CENSUS_TRACE_LABEL_H */ diff --git a/src/core/ext/census/trace_propagation.h b/src/core/ext/census/trace_propagation.h deleted file mode 100644 index e05fd23a1f..0000000000 --- a/src/core/ext/census/trace_propagation.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_TRACE_PROPAGATION_H -#define GRPC_CORE_EXT_CENSUS_TRACE_PROPAGATION_H - -#include "src/core/ext/census/tracing.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Encoding and decoding functions for receiving and sending trace contexts - over the wire. Only RPC libraries should be calling these - functions. These functions return the number of bytes encoded/decoded - (0 if a failure has occurred). buf_size indicates the size of the - input/output buffer. trace_span_context is a struct that includes the - trace ID, span ID, and a set of option flags (is_sampled, etc.). */ - -/* Converts a span context to a binary byte buffer. */ -size_t trace_span_context_to_binary(const trace_span_context *ctxt, - uint8_t *buf, size_t buf_size); - -/* Reads a binary byte buffer and populates a span context structure. */ -size_t binary_to_trace_span_context(const uint8_t *buf, size_t buf_size, - trace_span_context *ctxt); - -/* Converts a span context to an http metadata compatible string. */ -size_t trace_span_context_to_http_format(const trace_span_context *ctxt, - char *buf, size_t buf_size); - -/* Reads an http metadata compatible string and populates a span context - structure. */ -size_t http_format_to_trace_span_context(const char *buf, size_t buf_size, - trace_span_context *ctxt); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_TRACE_PROPAGATION_H */ diff --git a/src/core/ext/census/trace_status.h b/src/core/ext/census/trace_status.h deleted file mode 100644 index dd83d3f729..0000000000 --- a/src/core/ext/census/trace_status.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_TRACE_STATUS_H -#define GRPC_CORE_EXT_CENSUS_TRACE_STATUS_H - -#include "src/core/ext/census/trace_string.h" - -/* Stores a status code and status message for a trace. */ -typedef struct trace_status { - int64_t errorCode; - trace_string errorMessage; -} trace_status; - -#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STATUS_H */ diff --git a/src/core/ext/census/trace_string.h b/src/core/ext/census/trace_string.h deleted file mode 100644 index e4da3f590d..0000000000 --- a/src/core/ext/census/trace_string.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_TRACE_STRING_H -#define GRPC_CORE_EXT_CENSUS_TRACE_STRING_H - -#include <grpc/slice.h> - -/* String struct for tracing messages. Since this is a C API, we do not have - access to a string class. This is intended for use by higher level - languages which wrap around the C API, as most of them have a string class. - This will also be more efficient when copying, as we have an explicitly - specified length. Also, grpc_slice has reference counting which allows for - interning. */ -typedef struct trace_string { - char *string; - size_t length; -} trace_string; - -#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STRING_H */ diff --git a/src/core/ext/census/tracing.cc b/src/core/ext/census/tracing.cc deleted file mode 100644 index 823c681abf..0000000000 --- a/src/core/ext/census/tracing.cc +++ /dev/null @@ -1,55 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/tracing.h" - -#include <grpc/census.h> -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include "src/core/ext/census/mlog.h" - -void trace_start_span(const trace_span_context *span_ctxt, - const trace_string name, const start_span_options *opts, - trace_span_context *new_span_ctxt, - bool has_remote_parent) { - // Noop implementation. -} - -void trace_add_span_annotation(const trace_string description, - const trace_label *labels, const size_t n_labels, - trace_span_context *span_ctxt) { - // Noop implementation. -} - -void trace_add_span_network_event_annotation(const trace_string description, - const trace_label *labels, - const size_t n_labels, - const gpr_timespec timestamp, - bool sent, uint64_t id, - trace_span_context *span_ctxt) { - // Noop implementation. -} - -void trace_add_span_labels(const trace_label *labels, const size_t n_labels, - trace_span_context *span_ctxt) { - // Noop implementation. -} - -void trace_end_span(const trace_status *status, trace_span_context *span_ctxt) { - // Noop implementation. -} diff --git a/src/core/ext/census/tracing.h b/src/core/ext/census/tracing.h deleted file mode 100644 index 0690de8655..0000000000 --- a/src/core/ext/census/tracing.h +++ /dev/null @@ -1,117 +0,0 @@ -/* - * - * Copyright 2016 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_TRACING_H -#define GRPC_CORE_EXT_CENSUS_TRACING_H - -#include <grpc/support/time.h> -#include <stdbool.h> -#include "src/core/ext/census/trace_context.h" -#include "src/core/ext/census/trace_label.h" -#include "src/core/ext/census/trace_status.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* This is the low level tracing API that other languages will interface with. - This is not intended to be accessed by the end-user, therefore it has been - designed with performance in mind rather than ease of use. */ - -/* The tracing level. */ -enum TraceLevel { - /* Annotations on this context will be silently discarded. */ - NO_TRACING = 0, - /* Annotations will not be saved to a persistent store. They will be - available via local APIs only. This setting is not propagated to child - spans. */ - TRANSIENT_TRACING = 1, - /* Annotations are recorded for the entire distributed trace and they are - saved to a persistent store. This setting is propagated to child spans. */ - PERSISTENT_TRACING = 2, -}; - -typedef struct trace_span_context { - /* Trace span context stores Span ID, Trace ID, and option flags. */ - /* Trace ID is 128 bits split into 2 64-bit chunks (hi and lo). */ - uint64_t trace_id_hi; - uint64_t trace_id_lo; - /* Span ID is 64 bits. */ - uint64_t span_id; - /* Span-options is 32-bit value which contains flag options. */ - uint32_t span_options; -} trace_span_context; - -typedef struct start_span_options { - /* If set, this will override the Span.local_start_time for the Span. */ - gpr_timespec local_start_timestamp; - - /* Linked spans can be used to identify spans that are linked to this span in - a different trace. This can be used (for example) in batching operations, - where a single batch handler processes multiple requests from different - traces. If set, points to a list of Spans are linked to the created Span.*/ - trace_span_context *linked_spans; - /* The number of linked spans. */ - size_t n_linked_spans; -} start_span_options; - -/* Create a new child Span (or root if parent is NULL), with parent being the - designated Span. The child span will have the provided name and starting - span options (optional). The bool has_remote_parent marks whether the - context refers to a remote parent span or not. */ -void trace_start_span(const trace_span_context *span_ctxt, - const trace_string name, const start_span_options *opts, - trace_span_context *new_span_ctxt, - bool has_remote_parent); - -/* Add a new Annotation to the Span. Annotations consist of a description - (trace_string) and a set of n labels (trace_label). This can be populated - with arbitrary user data. */ -void trace_add_span_annotation(const trace_string description, - const trace_label *labels, const size_t n_labels, - trace_span_context *span_ctxt); - -/* Add a new NetworkEvent annotation to a Span. This function is only intended - to be used by RPC systems (either client or server), not by higher level - applications. The timestamp type will be system-defined, the sent argument - designates whether this is a network send event (client request, server - reply)or receive (server request, client reply). The id argument corresponds - to Span.Annotation.NetworkEvent.id from the data model, and serves to uniquely - identify each network message. */ -void trace_add_span_network_event(const trace_string description, - const trace_label *labels, - const size_t n_labels, - const gpr_timespec timestamp, bool sent, - uint64_t id, trace_span_context *span_ctxt); - -/* Add a set of labels to the Span. These will correspond to the field -Span.labels in the data model. */ -void trace_add_span_labels(const trace_label *labels, const size_t n_labels, - trace_span_context *span_ctxt); - -/* Mark the end of Span Execution with the given status. Only the timing of the -first EndSpan call for a given Span will be recorded, and implementations are -free to ignore all further calls using the Span. EndSpanOptions can -optionally be NULL. */ -void trace_end_span(const trace_status *status, trace_span_context *span_ctxt); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_TRACING_H */ diff --git a/src/core/ext/census/window_stats.cc b/src/core/ext/census/window_stats.cc deleted file mode 100644 index 0058e4bf9c..0000000000 --- a/src/core/ext/census/window_stats.cc +++ /dev/null @@ -1,301 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#include "src/core/ext/census/window_stats.h" -#include <grpc/support/alloc.h> -#include <grpc/support/log.h> -#include <grpc/support/time.h> -#include <grpc/support/useful.h> -#include <math.h> -#include <stddef.h> -#include <string.h> - -/* typedefs make typing long names easier. Use cws (for census_window_stats) */ -typedef census_window_stats_stat_info cws_stat_info; -typedef struct census_window_stats_sum cws_sum; - -/* Each interval is composed of a number of buckets, which hold a count of - entries and a single statistic */ -typedef struct census_window_stats_bucket { - int64_t count; - void *statistic; -} cws_bucket; - -/* Each interval has a set of buckets, and the variables needed to keep - track of their current state */ -typedef struct census_window_stats_interval_stats { - /* The buckets. There will be 'granularity' + 1 of these. */ - cws_bucket *buckets; - /* Index of the bucket containing the smallest time interval. */ - int bottom_bucket; - /* The smallest time storable in the current window. */ - int64_t bottom; - /* The largest time storable in the current window + 1ns */ - int64_t top; - /* The width of each bucket in ns. */ - int64_t width; -} cws_interval_stats; - -typedef struct census_window_stats { - /* Number of intervals. */ - int nintervals; - /* Number of buckets in each interval. 'granularity' + 1. */ - int nbuckets; - /* Record of stat_info. */ - cws_stat_info stat_info; - /* Stats for each interval. */ - cws_interval_stats *interval_stats; - /* The time the newset stat was recorded. */ - int64_t newest_time; -} window_stats; - -/* Calculate an actual bucket index from a logical index 'IDX'. Other - parameters supply information on the interval struct and overall stats. */ -#define BUCKET_IDX(IS, IDX, WSTATS) \ - ((IS->bottom_bucket + (IDX)) % WSTATS->nbuckets) - -/* The maximum seconds value we can have in a valid timespec. More than this - will result in overflow in timespec_to_ns(). This works out to ~292 years. - TODO: consider using doubles instead of int64. */ -static int64_t max_seconds = (GPR_INT64_MAX - GPR_NS_PER_SEC) / GPR_NS_PER_SEC; - -static int64_t timespec_to_ns(const gpr_timespec ts) { - if (ts.tv_sec > max_seconds) { - return GPR_INT64_MAX - 1; - } - return ts.tv_sec * GPR_NS_PER_SEC + ts.tv_nsec; -} - -static void cws_initialize_statistic(void *statistic, - const cws_stat_info *stat_info) { - if (stat_info->stat_initialize == NULL) { - memset(statistic, 0, stat_info->stat_size); - } else { - stat_info->stat_initialize(statistic); - } -} - -/* Create and initialize a statistic */ -static void *cws_create_statistic(const cws_stat_info *stat_info) { - void *stat = gpr_malloc(stat_info->stat_size); - cws_initialize_statistic(stat, stat_info); - return stat; -} - -window_stats *census_window_stats_create(int nintervals, - const gpr_timespec intervals[], - int granularity, - const cws_stat_info *stat_info) { - window_stats *ret; - int i; - /* validate inputs */ - GPR_ASSERT(nintervals > 0 && granularity > 2 && intervals != NULL && - stat_info != NULL); - for (i = 0; i < nintervals; i++) { - int64_t ns = timespec_to_ns(intervals[i]); - GPR_ASSERT(intervals[i].tv_sec >= 0 && intervals[i].tv_nsec >= 0 && - intervals[i].tv_nsec < GPR_NS_PER_SEC && ns >= 100 && - granularity * 10 <= ns); - } - /* Allocate and initialize relevant data structures */ - ret = (window_stats *)gpr_malloc(sizeof(window_stats)); - ret->nintervals = nintervals; - ret->nbuckets = granularity + 1; - ret->stat_info = *stat_info; - ret->interval_stats = - (cws_interval_stats *)gpr_malloc(nintervals * sizeof(cws_interval_stats)); - for (i = 0; i < nintervals; i++) { - int64_t size_ns = timespec_to_ns(intervals[i]); - cws_interval_stats *is = ret->interval_stats + i; - cws_bucket *buckets = is->buckets = - (cws_bucket *)gpr_malloc(ret->nbuckets * sizeof(cws_bucket)); - int b; - for (b = 0; b < ret->nbuckets; b++) { - buckets[b].statistic = cws_create_statistic(stat_info); - buckets[b].count = 0; - } - is->bottom_bucket = 0; - is->bottom = 0; - is->width = size_ns / granularity; - /* Check for possible overflow issues, and maximize interval size if the - user requested something large enough. */ - if ((GPR_INT64_MAX - is->width) > size_ns) { - is->top = size_ns + is->width; - } else { - is->top = GPR_INT64_MAX; - is->width = GPR_INT64_MAX / (granularity + 1); - } - /* If size doesn't divide evenly, we can have a width slightly too small; - better to have it slightly large. */ - if ((size_ns - (granularity + 1) * is->width) > 0) { - is->width += 1; - } - } - ret->newest_time = 0; - return ret; -} - -/* When we try adding a measurement above the current interval range, we - need to "shift" the buckets sufficiently to cover the new range. */ -static void cws_shift_buckets(const window_stats *wstats, - cws_interval_stats *is, int64_t when_ns) { - int i; - /* number of bucket time widths to "shift" */ - int shift; - /* number of buckets to clear */ - int nclear; - GPR_ASSERT(when_ns >= is->top); - /* number of bucket time widths to "shift" */ - shift = ((when_ns - is->top) / is->width) + 1; - /* number of buckets to clear - limited by actual number of buckets */ - nclear = GPR_MIN(shift, wstats->nbuckets); - for (i = 0; i < nclear; i++) { - int b = BUCKET_IDX(is, i, wstats); - is->buckets[b].count = 0; - cws_initialize_statistic(is->buckets[b].statistic, &wstats->stat_info); - } - /* adjust top/bottom times and current bottom bucket */ - is->bottom_bucket = BUCKET_IDX(is, shift, wstats); - is->top += shift * is->width; - is->bottom += shift * is->width; -} - -void census_window_stats_add(window_stats *wstats, const gpr_timespec when, - const void *stat_value) { - int i; - int64_t when_ns = timespec_to_ns(when); - GPR_ASSERT(wstats->interval_stats != NULL); - for (i = 0; i < wstats->nintervals; i++) { - cws_interval_stats *is = wstats->interval_stats + i; - cws_bucket *bucket; - if (when_ns < is->bottom) { /* Below smallest time in interval: drop */ - continue; - } - if (when_ns >= is->top) { /* above limit: shift buckets */ - cws_shift_buckets(wstats, is, when_ns); - } - /* Add the stat. */ - GPR_ASSERT(is->bottom <= when_ns && when_ns < is->top); - bucket = is->buckets + - BUCKET_IDX(is, (when_ns - is->bottom) / is->width, wstats); - bucket->count++; - wstats->stat_info.stat_add(bucket->statistic, stat_value); - } - if (when_ns > wstats->newest_time) { - wstats->newest_time = when_ns; - } -} - -/* Add a specific bucket contents to an accumulating total. */ -static void cws_add_bucket_to_sum(cws_sum *sum, const cws_bucket *bucket, - const cws_stat_info *stat_info) { - sum->count += bucket->count; - stat_info->stat_add(sum->statistic, bucket->statistic); -} - -/* Add a proportion to an accumulating sum. */ -static void cws_add_proportion_to_sum(double p, cws_sum *sum, - const cws_bucket *bucket, - const cws_stat_info *stat_info) { - sum->count += p * bucket->count; - stat_info->stat_add_proportion(p, sum->statistic, bucket->statistic); -} - -void census_window_stats_get_sums(const window_stats *wstats, - const gpr_timespec when, cws_sum sums[]) { - int i; - int64_t when_ns = timespec_to_ns(when); - GPR_ASSERT(wstats->interval_stats != NULL); - for (i = 0; i < wstats->nintervals; i++) { - int when_bucket; - int new_bucket; - double last_proportion = 1.0; - double bottom_proportion; - cws_interval_stats *is = wstats->interval_stats + i; - cws_sum *sum = sums + i; - sum->count = 0; - cws_initialize_statistic(sum->statistic, &wstats->stat_info); - if (when_ns < is->bottom) { - continue; - } - if (when_ns >= is->top) { - cws_shift_buckets(wstats, is, when_ns); - } - /* Calculating the appropriate amount of which buckets to use can get - complicated. Essentially there are two cases: - 1) if the "top" bucket (new_bucket, where the newest additions to the - stats recorded are entered) corresponds to 'when', then we need - to take a proportion of it - (if when < newest_time) or the full - thing. We also (possibly) need to take a corresponding - proportion of the bottom bucket. - 2) Other cases, we just take a straight proportion. - */ - when_bucket = (when_ns - is->bottom) / is->width; - new_bucket = (wstats->newest_time - is->bottom) / is->width; - if (new_bucket == when_bucket) { - int64_t bottom_bucket_time = is->bottom + when_bucket * is->width; - if (when_ns < wstats->newest_time) { - last_proportion = (double)(when_ns - bottom_bucket_time) / - (double)(wstats->newest_time - bottom_bucket_time); - bottom_proportion = - (double)(is->width - (when_ns - bottom_bucket_time)) / is->width; - } else { - bottom_proportion = - (double)(is->width - (wstats->newest_time - bottom_bucket_time)) / - is->width; - } - } else { - last_proportion = - (double)(when_ns + 1 - is->bottom - when_bucket * is->width) / - is->width; - bottom_proportion = 1.0 - last_proportion; - } - cws_add_proportion_to_sum(last_proportion, sum, - is->buckets + BUCKET_IDX(is, when_bucket, wstats), - &wstats->stat_info); - if (when_bucket != 0) { /* last bucket isn't also bottom bucket */ - int b; - /* Add all of "bottom" bucket if we are looking at a subset of the - full interval, or a proportion if we are adding full interval. */ - cws_add_proportion_to_sum( - (when_bucket == wstats->nbuckets - 1 ? bottom_proportion : 1.0), sum, - is->buckets + is->bottom_bucket, &wstats->stat_info); - /* Add all the remaining buckets (everything but top and bottom). */ - for (b = 1; b < when_bucket; b++) { - cws_add_bucket_to_sum(sum, is->buckets + BUCKET_IDX(is, b, wstats), - &wstats->stat_info); - } - } - } -} - -void census_window_stats_destroy(window_stats *wstats) { - int i; - GPR_ASSERT(wstats->interval_stats != NULL); - for (i = 0; i < wstats->nintervals; i++) { - int b; - for (b = 0; b < wstats->nbuckets; b++) { - gpr_free(wstats->interval_stats[i].buckets[b].statistic); - } - gpr_free(wstats->interval_stats[i].buckets); - } - gpr_free(wstats->interval_stats); - /* Ensure any use-after free triggers assert. */ - wstats->interval_stats = NULL; - gpr_free(wstats); -} diff --git a/src/core/ext/census/window_stats.h b/src/core/ext/census/window_stats.h deleted file mode 100644 index 2a1d6d0d16..0000000000 --- a/src/core/ext/census/window_stats.h +++ /dev/null @@ -1,166 +0,0 @@ -/* - * - * Copyright 2015 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -#ifndef GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H -#define GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H - -#include <grpc/support/time.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* Keep rolling sums of a user-defined statistic (containing a number of - measurements) over a a number of time intervals ("windows"). For example, - you can use a window_stats object to answer questions such as - "Approximately how many RPCs/s did I receive over the past minute, and - approximately how many bytes did I send out over that period?". - - The type of data to record, and the time intervals to keep are specified - when creating the object via a call to census_window_stats_create(). - - A window's interval is divided into one or more "buckets"; the interval - must be divisible by the number of buckets. Internally, these buckets - control the granularity of window_stats' measurements. Increasing the - number of buckets lets the object respond more quickly to changes in the - overall rate of data added into the object, at the cost of additional - memory usage. - - Here's some code which keeps one minute/hour measurements for two values - (latency in seconds and bytes transferred), with each interval divided into - 4 buckets. - - typedef struct my_stat { - double latency; - int bytes; - } my_stat; - - void add_my_stat(void* base, const void* addme) { - my_stat* b = (my_stat*)base; - const my_stat* a = (const my_stat*)addme; - b->latency += a->latency; - b->bytes += a->bytes; - } - - void add_proportion_my_stat(double p, void* base, const void* addme) { - (my_stat*)result->latency += p * (const my_stat*)base->latency; - (my_stat*)result->bytes += p * (const my_stat*)base->bytes; - } - - #define kNumIntervals 2 - #define kMinInterval 0 - #define kHourInterval 1 - #define kNumBuckets 4 - - const struct census_window_stats_stat_info kMyStatInfo - = { sizeof(my_stat), NULL, add_my_stat, add_proportion_my_stat }; - gpr_timespec intervals[kNumIntervals] = {{60, 0}, {3600, 0}}; - my_stat stat; - my_stat sums[kNumIntervals]; - census_window_stats_sums result[kNumIntervals]; - struct census_window_stats* stats - = census_window_stats_create(kNumIntervals, intervals, kNumBuckets, - &kMyStatInfo); - // Record a new event, taking 15.3ms, transferring 1784 bytes. - stat.latency = 0.153; - stat.bytes = 1784; - census_window_stats_add(stats, gpr_now(GPR_CLOCK_REALTIME), &stat); - // Get sums and print them out - result[kMinInterval].statistic = &sums[kMinInterval]; - result[kHourInterval].statistic = &sums[kHourInterval]; - census_window_stats_get_sums(stats, gpr_now(GPR_CLOCK_REALTIME), result); - printf("%d events/min, average time %gs, average bytes %g\n", - result[kMinInterval].count, - (my_stat*)result[kMinInterval].statistic->latency / - result[kMinInterval].count, - (my_stat*)result[kMinInterval].statistic->bytes / - result[kMinInterval].count - ); - printf("%d events/hr, average time %gs, average bytes %g\n", - result[kHourInterval].count, - (my_stat*)result[kHourInterval].statistic->latency / - result[kHourInterval].count, - (my_stat*)result[kHourInterval].statistic->bytes / - result[kHourInterval].count - ); -*/ - -/* Opaque structure for representing window_stats object */ -struct census_window_stats; - -/* Information provided by API user on the information they want to record */ -typedef struct census_window_stats_stat_info { - /* Number of bytes in user-defined object. */ - size_t stat_size; - /* Function to initialize a user-defined statistics object. If this is set - * to NULL, then the object will be zero-initialized. */ - void (*stat_initialize)(void *stat); - /* Function to add one user-defined statistics object ('addme') to 'base' */ - void (*stat_add)(void *base, const void *addme); - /* As for previous function, but only add a proportion 'p'. This API will - currently only use 'p' values in the range [0,1], but other values are - possible in the future, and should be supported. */ - void (*stat_add_proportion)(double p, void *base, const void *addme); -} census_window_stats_stat_info; - -/* Create a new window_stats object. 'nintervals' is the number of - 'intervals', and must be >=1. 'granularity' is the number of buckets, with - a larger number using more memory, but providing greater accuracy of - results. 'granularity should be > 2. We also require that each interval be - at least 10 * 'granularity' nanoseconds in size. 'stat_info' contains - information about the statistic to be gathered. Intervals greater than ~192 - years will be treated as essentially infinite in size. This function will - GPR_ASSERT() if the object cannot be created or any of the parameters have - invalid values. This function is thread-safe. */ -struct census_window_stats *census_window_stats_create( - int nintervals, const gpr_timespec intervals[], int granularity, - const census_window_stats_stat_info *stat_info); - -/* Add a new measurement (in 'stat_value'), as of a given time ('when'). - This function is thread-compatible. */ -void census_window_stats_add(struct census_window_stats *wstats, - const gpr_timespec when, const void *stat_value); - -/* Structure used to record a single intervals sum for a given statistic */ -typedef struct census_window_stats_sum { - /* Total count of samples. Note that because some internal interpolation - is performed, the count of samples returned for each interval may not be an - integral value. */ - double count; - /* Sum for statistic */ - void *statistic; -} census_window_stats_sums; - -/* Retrieve a set of all values stored in a window_stats object 'wstats'. The - number of 'sums' MUST be the same as the number 'nintervals' used in - census_window_stats_create(). This function is thread-compatible. */ -void census_window_stats_get_sums(const struct census_window_stats *wstats, - const gpr_timespec when, - struct census_window_stats_sum sums[]); - -/* Destroy a window_stats object. Once this function has been called, the - object will no longer be usable from any of the above functions (and - calling them will most likely result in a NULL-pointer dereference or - assertion failure). This function is thread-compatible. */ -void census_window_stats_destroy(struct census_window_stats *wstats); - -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H */ diff --git a/src/core/ext/filters/client_channel/backup_poller.cc b/src/core/ext/filters/client_channel/backup_poller.cc new file mode 100644 index 0000000000..ed437d255c --- /dev/null +++ b/src/core/ext/filters/client_channel/backup_poller.cc @@ -0,0 +1,165 @@ +/* + * + * Copyright 2015 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include "src/core/ext/filters/client_channel/backup_poller.h" + +#include <grpc/grpc.h> +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> +#include <grpc/support/sync.h> +#include "src/core/ext/filters/client_channel/client_channel.h" +#include "src/core/lib/iomgr/error.h" +#include "src/core/lib/iomgr/pollset.h" +#include "src/core/lib/iomgr/timer.h" +#include "src/core/lib/support/env.h" +#include "src/core/lib/support/string.h" +#include "src/core/lib/surface/channel.h" +#include "src/core/lib/surface/completion_queue.h" + +#define DEFAULT_POLL_INTERVAL_MS 5000 + +typedef struct backup_poller { + grpc_timer polling_timer; + grpc_closure run_poller_closure; + grpc_closure shutdown_closure; + gpr_mu* pollset_mu; + grpc_pollset* pollset; // guarded by pollset_mu + bool shutting_down; // guarded by pollset_mu + gpr_refcount refs; + gpr_refcount shutdown_refs; +} backup_poller; + +static gpr_once g_once = GPR_ONCE_INIT; +static gpr_mu g_poller_mu; +static backup_poller* g_poller = nullptr; // guarded by g_poller_mu +// g_poll_interval_ms is set only once at the first time +// grpc_client_channel_start_backup_polling() is called, after that it is +// treated as const. +static int g_poll_interval_ms = DEFAULT_POLL_INTERVAL_MS; + +static void init_globals() { + gpr_mu_init(&g_poller_mu); + char* env = gpr_getenv("GRPC_CLIENT_CHANNEL_BACKUP_POLL_INTERVAL_MS"); + if (env != nullptr) { + int poll_interval_ms = gpr_parse_nonnegative_int(env); + if (poll_interval_ms == -1) { + gpr_log(GPR_ERROR, + "Invalid GRPC_CLIENT_CHANNEL_BACKUP_POLL_INTERVAL_MS: %s, " + "default value %d will be used.", + env, g_poll_interval_ms); + } else { + g_poll_interval_ms = poll_interval_ms; + } + } + gpr_free(env); +} + +static void backup_poller_shutdown_unref(grpc_exec_ctx* exec_ctx, + backup_poller* p) { + if (gpr_unref(&p->shutdown_refs)) { + grpc_pollset_destroy(exec_ctx, p->pollset); + gpr_free(p->pollset); + gpr_free(p); + } +} + +static void done_poller(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { + backup_poller_shutdown_unref(exec_ctx, (backup_poller*)arg); +} + +static void g_poller_unref(grpc_exec_ctx* exec_ctx) { + if (gpr_unref(&g_poller->refs)) { + gpr_mu_lock(&g_poller_mu); + backup_poller* p = g_poller; + g_poller = nullptr; + gpr_mu_unlock(&g_poller_mu); + gpr_mu_lock(p->pollset_mu); + p->shutting_down = true; + grpc_pollset_shutdown(exec_ctx, p->pollset, + GRPC_CLOSURE_INIT(&p->shutdown_closure, done_poller, + p, grpc_schedule_on_exec_ctx)); + gpr_mu_unlock(p->pollset_mu); + grpc_timer_cancel(exec_ctx, &p->polling_timer); + } +} + +static void run_poller(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { + backup_poller* p = (backup_poller*)arg; + if (error != GRPC_ERROR_NONE) { + if (error != GRPC_ERROR_CANCELLED) { + GRPC_LOG_IF_ERROR("run_poller", GRPC_ERROR_REF(error)); + } + backup_poller_shutdown_unref(exec_ctx, p); + return; + } + gpr_mu_lock(p->pollset_mu); + if (p->shutting_down) { + gpr_mu_unlock(p->pollset_mu); + backup_poller_shutdown_unref(exec_ctx, p); + return; + } + grpc_error* err = grpc_pollset_work(exec_ctx, p->pollset, nullptr, + grpc_exec_ctx_now(exec_ctx)); + gpr_mu_unlock(p->pollset_mu); + GRPC_LOG_IF_ERROR("Run client channel backup poller", err); + grpc_timer_init(exec_ctx, &p->polling_timer, + grpc_exec_ctx_now(exec_ctx) + g_poll_interval_ms, + &p->run_poller_closure); +} + +void grpc_client_channel_start_backup_polling( + grpc_exec_ctx* exec_ctx, grpc_pollset_set* interested_parties) { + gpr_once_init(&g_once, init_globals); + if (g_poll_interval_ms == 0) { + return; + } + gpr_mu_lock(&g_poller_mu); + if (g_poller == nullptr) { + g_poller = (backup_poller*)gpr_zalloc(sizeof(backup_poller)); + g_poller->pollset = (grpc_pollset*)gpr_zalloc(grpc_pollset_size()); + g_poller->shutting_down = false; + grpc_pollset_init(g_poller->pollset, &g_poller->pollset_mu); + gpr_ref_init(&g_poller->refs, 0); + // one for timer cancellation, one for pollset shutdown + gpr_ref_init(&g_poller->shutdown_refs, 2); + GRPC_CLOSURE_INIT(&g_poller->run_poller_closure, run_poller, g_poller, + grpc_schedule_on_exec_ctx); + grpc_timer_init(exec_ctx, &g_poller->polling_timer, + grpc_exec_ctx_now(exec_ctx) + g_poll_interval_ms, + &g_poller->run_poller_closure); + } + + gpr_ref(&g_poller->refs); + /* Get a reference to g_poller->pollset before releasing g_poller_mu to make + * TSAN happy. Otherwise, reading from g_poller (i.e g_poller->pollset) after + * releasing the lock and setting g_poller to NULL in g_poller_unref() is + * being flagged as a data-race by TSAN */ + grpc_pollset* pollset = g_poller->pollset; + gpr_mu_unlock(&g_poller_mu); + + grpc_pollset_set_add_pollset(exec_ctx, interested_parties, pollset); +} + +void grpc_client_channel_stop_backup_polling( + grpc_exec_ctx* exec_ctx, grpc_pollset_set* interested_parties) { + if (g_poll_interval_ms == 0) { + return; + } + grpc_pollset_set_del_pollset(exec_ctx, interested_parties, g_poller->pollset); + g_poller_unref(exec_ctx); +} diff --git a/src/core/ext/census/grpc_filter.h b/src/core/ext/filters/client_channel/backup_poller.h index 7940363061..e993d50639 100644 --- a/src/core/ext/census/grpc_filter.h +++ b/src/core/ext/filters/client_channel/backup_poller.h @@ -16,22 +16,19 @@ * */ -#ifndef GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H -#define GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H +#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H +#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H +#include <grpc/grpc.h> #include "src/core/lib/channel/channel_stack.h" +#include "src/core/lib/iomgr/exec_ctx.h" -#ifdef __cplusplus -extern "C" { -#endif +/* Start polling \a interested_parties periodically in the timer thread */ +void grpc_client_channel_start_backup_polling( + grpc_exec_ctx* exec_ctx, grpc_pollset_set* interested_parties); -/* Census filters: provides tracing and stats collection functionalities. It - needs to reside right below the surface filter in the channel stack. */ -extern const grpc_channel_filter grpc_client_census_filter; -extern const grpc_channel_filter grpc_server_census_filter; +/* Stop polling \a interested_parties */ +void grpc_client_channel_stop_backup_polling( + grpc_exec_ctx* exec_ctx, grpc_pollset_set* interested_parties); -#ifdef __cplusplus -} -#endif - -#endif /* GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H */ +#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_BACKUP_POLLER_H */ diff --git a/src/core/ext/filters/client_channel/channel_connectivity.cc b/src/core/ext/filters/client_channel/channel_connectivity.cc index 31a8fc39ce..7eaf5d98cd 100644 --- a/src/core/ext/filters/client_channel/channel_connectivity.cc +++ b/src/core/ext/filters/client_channel/channel_connectivity.cc @@ -29,9 +29,9 @@ #include "src/core/lib/surface/completion_queue.h" grpc_connectivity_state grpc_channel_check_connectivity_state( - grpc_channel *channel, int try_to_connect) { + grpc_channel* channel, int try_to_connect) { /* forward through to the underlying client channel */ - grpc_channel_element *client_channel_elem = + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel)); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; grpc_connectivity_state state; @@ -66,15 +66,15 @@ typedef struct { grpc_closure watcher_timer_init; grpc_timer alarm; grpc_connectivity_state state; - grpc_completion_queue *cq; + grpc_completion_queue* cq; grpc_cq_completion completion_storage; - grpc_channel *channel; - grpc_error *error; - void *tag; + grpc_channel* channel; + grpc_error* error; + void* tag; } state_watcher; -static void delete_state_watcher(grpc_exec_ctx *exec_ctx, state_watcher *w) { - grpc_channel_element *client_channel_elem = grpc_channel_stack_last_element( +static void delete_state_watcher(grpc_exec_ctx* exec_ctx, state_watcher* w) { + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element( grpc_channel_get_channel_stack(w->channel)); if (client_channel_elem->filter == &grpc_client_channel_filter) { GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, w->channel, @@ -86,10 +86,10 @@ static void delete_state_watcher(grpc_exec_ctx *exec_ctx, state_watcher *w) { gpr_free(w); } -static void finished_completion(grpc_exec_ctx *exec_ctx, void *pw, - grpc_cq_completion *ignored) { +static void finished_completion(grpc_exec_ctx* exec_ctx, void* pw, + grpc_cq_completion* ignored) { bool should_delete = false; - state_watcher *w = (state_watcher *)pw; + state_watcher* w = (state_watcher*)pw; gpr_mu_lock(&w->mu); switch (w->phase) { case WAITING: @@ -106,23 +106,23 @@ static void finished_completion(grpc_exec_ctx *exec_ctx, void *pw, } } -static void partly_done(grpc_exec_ctx *exec_ctx, state_watcher *w, - bool due_to_completion, grpc_error *error) { +static void partly_done(grpc_exec_ctx* exec_ctx, state_watcher* w, + bool due_to_completion, grpc_error* error) { if (due_to_completion) { grpc_timer_cancel(exec_ctx, &w->alarm); } else { - grpc_channel_element *client_channel_elem = grpc_channel_stack_last_element( + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element( grpc_channel_get_channel_stack(w->channel)); grpc_client_channel_watch_connectivity_state( exec_ctx, client_channel_elem, - grpc_polling_entity_create_from_pollset(grpc_cq_pollset(w->cq)), NULL, - &w->on_complete, NULL); + grpc_polling_entity_create_from_pollset(grpc_cq_pollset(w->cq)), + nullptr, &w->on_complete, nullptr); } gpr_mu_lock(&w->mu); if (due_to_completion) { - if (GRPC_TRACER_ON(grpc_trace_operation_failures)) { + if (grpc_trace_operation_failures.enabled()) { GRPC_LOG_IF_ERROR("watch_completion_error", GRPC_ERROR_REF(error)); } GRPC_ERROR_UNREF(error); @@ -161,31 +161,31 @@ static void partly_done(grpc_exec_ctx *exec_ctx, state_watcher *w, GRPC_ERROR_UNREF(error); } -static void watch_complete(grpc_exec_ctx *exec_ctx, void *pw, - grpc_error *error) { - partly_done(exec_ctx, (state_watcher *)pw, true, GRPC_ERROR_REF(error)); +static void watch_complete(grpc_exec_ctx* exec_ctx, void* pw, + grpc_error* error) { + partly_done(exec_ctx, (state_watcher*)pw, true, GRPC_ERROR_REF(error)); } -static void timeout_complete(grpc_exec_ctx *exec_ctx, void *pw, - grpc_error *error) { - partly_done(exec_ctx, (state_watcher *)pw, false, GRPC_ERROR_REF(error)); +static void timeout_complete(grpc_exec_ctx* exec_ctx, void* pw, + grpc_error* error) { + partly_done(exec_ctx, (state_watcher*)pw, false, GRPC_ERROR_REF(error)); } -int grpc_channel_num_external_connectivity_watchers(grpc_channel *channel) { - grpc_channel_element *client_channel_elem = +int grpc_channel_num_external_connectivity_watchers(grpc_channel* channel) { + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel)); return grpc_client_channel_num_external_connectivity_watchers( client_channel_elem); } typedef struct watcher_timer_init_arg { - state_watcher *w; + state_watcher* w; gpr_timespec deadline; } watcher_timer_init_arg; -static void watcher_timer_init(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error_ignored) { - watcher_timer_init_arg *wa = (watcher_timer_init_arg *)arg; +static void watcher_timer_init(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error_ignored) { + watcher_timer_init_arg* wa = (watcher_timer_init_arg*)arg; grpc_timer_init(exec_ctx, &wa->w->alarm, grpc_timespec_to_millis_round_up(wa->deadline), @@ -193,19 +193,19 @@ static void watcher_timer_init(grpc_exec_ctx *exec_ctx, void *arg, gpr_free(wa); } -int grpc_channel_support_connectivity_watcher(grpc_channel *channel) { - grpc_channel_element *client_channel_elem = +int grpc_channel_support_connectivity_watcher(grpc_channel* channel) { + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel)); return client_channel_elem->filter != &grpc_client_channel_filter ? 0 : 1; } void grpc_channel_watch_connectivity_state( - grpc_channel *channel, grpc_connectivity_state last_observed_state, - gpr_timespec deadline, grpc_completion_queue *cq, void *tag) { - grpc_channel_element *client_channel_elem = + grpc_channel* channel, grpc_connectivity_state last_observed_state, + gpr_timespec deadline, grpc_completion_queue* cq, void* tag) { + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel)); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - state_watcher *w = (state_watcher *)gpr_malloc(sizeof(*w)); + state_watcher* w = (state_watcher*)gpr_malloc(sizeof(*w)); GRPC_API_TRACE( "grpc_channel_watch_connectivity_state(" @@ -213,8 +213,9 @@ void grpc_channel_watch_connectivity_state( "deadline=gpr_timespec { tv_sec: %" PRId64 ", tv_nsec: %d, clock_type: %d }, " "cq=%p, tag=%p)", - 7, (channel, (int)last_observed_state, deadline.tv_sec, deadline.tv_nsec, - (int)deadline.clock_type, cq, tag)); + 7, + (channel, (int)last_observed_state, deadline.tv_sec, deadline.tv_nsec, + (int)deadline.clock_type, cq, tag)); GPR_ASSERT(grpc_cq_begin_op(cq, tag)); @@ -228,10 +229,10 @@ void grpc_channel_watch_connectivity_state( w->cq = cq; w->tag = tag; w->channel = channel; - w->error = NULL; + w->error = nullptr; - watcher_timer_init_arg *wa = - (watcher_timer_init_arg *)gpr_malloc(sizeof(watcher_timer_init_arg)); + watcher_timer_init_arg* wa = + (watcher_timer_init_arg*)gpr_malloc(sizeof(watcher_timer_init_arg)); wa->w = w; wa->deadline = deadline; GRPC_CLOSURE_INIT(&w->watcher_timer_init, watcher_timer_init, wa, diff --git a/src/core/ext/filters/client_channel/client_channel.cc b/src/core/ext/filters/client_channel/client_channel.cc index ea5e076c3b..03c1b6f4bd 100644 --- a/src/core/ext/filters/client_channel/client_channel.cc +++ b/src/core/ext/filters/client_channel/client_channel.cc @@ -31,6 +31,7 @@ #include <grpc/support/sync.h> #include <grpc/support/useful.h> +#include "src/core/ext/filters/client_channel/backup_poller.h" #include "src/core/ext/filters/client_channel/http_connect_handshaker.h" #include "src/core/ext/filters/client_channel/lb_policy_registry.h" #include "src/core/ext/filters/client_channel/proxy_mapper_registry.h" @@ -55,8 +56,7 @@ /* Client channel implementation */ -grpc_tracer_flag grpc_client_channel_trace = - GRPC_TRACER_INITIALIZER(false, "client_channel"); +grpc_core::TraceFlag grpc_client_channel_trace(false, "client_channel"); /************************************************************************* * METHOD-CONFIG TABLE @@ -75,24 +75,29 @@ typedef struct { wait_for_ready_value wait_for_ready; } method_parameters; -static method_parameters *method_parameters_ref( - method_parameters *method_params) { +static method_parameters* method_parameters_ref( + method_parameters* method_params) { gpr_ref(&method_params->refs); return method_params; } -static void method_parameters_unref(method_parameters *method_params) { +static void method_parameters_unref(method_parameters* method_params) { if (gpr_unref(&method_params->refs)) { gpr_free(method_params); } } -static void method_parameters_free(grpc_exec_ctx *exec_ctx, void *value) { - method_parameters_unref((method_parameters *)value); +// Wrappers to pass to grpc_service_config_create_method_config_table(). +static void* method_parameters_ref_wrapper(void* value) { + return method_parameters_ref((method_parameters*)value); +} +static void method_parameters_unref_wrapper(grpc_exec_ctx* exec_ctx, + void* value) { + method_parameters_unref((method_parameters*)value); } -static bool parse_wait_for_ready(grpc_json *field, - wait_for_ready_value *wait_for_ready) { +static bool parse_wait_for_ready(grpc_json* field, + wait_for_ready_value* wait_for_ready) { if (field->type != GRPC_JSON_TRUE && field->type != GRPC_JSON_FALSE) { return false; } @@ -101,60 +106,52 @@ static bool parse_wait_for_ready(grpc_json *field, return true; } -static bool parse_timeout(grpc_json *field, grpc_millis *timeout) { +static bool parse_timeout(grpc_json* field, grpc_millis* timeout) { if (field->type != GRPC_JSON_STRING) return false; size_t len = strlen(field->value); if (field->value[len - 1] != 's') return false; - char *buf = gpr_strdup(field->value); + char* buf = gpr_strdup(field->value); buf[len - 1] = '\0'; // Remove trailing 's'. - char *decimal_point = strchr(buf, '.'); + char* decimal_point = strchr(buf, '.'); int nanos = 0; - if (decimal_point != NULL) { + if (decimal_point != nullptr) { *decimal_point = '\0'; nanos = gpr_parse_nonnegative_int(decimal_point + 1); if (nanos == -1) { gpr_free(buf); return false; } - // There should always be exactly 3, 6, or 9 fractional digits. - int multiplier = 1; - switch (strlen(decimal_point + 1)) { - case 9: - break; - case 6: - multiplier *= 1000; - break; - case 3: - multiplier *= 1000000; - break; - default: // Unsupported number of digits. - gpr_free(buf); - return false; + int num_digits = (int)strlen(decimal_point + 1); + if (num_digits > 9) { // We don't accept greater precision than nanos. + gpr_free(buf); + return false; + } + for (int i = 0; i < (9 - num_digits); ++i) { + nanos *= 10; } - nanos *= multiplier; } - int seconds = gpr_parse_nonnegative_int(buf); + int seconds = decimal_point == buf ? 0 : gpr_parse_nonnegative_int(buf); gpr_free(buf); if (seconds == -1) return false; *timeout = seconds * GPR_MS_PER_SEC + nanos / GPR_NS_PER_MS; return true; } -static void *method_parameters_create_from_json(const grpc_json *json) { +static void* method_parameters_create_from_json(const grpc_json* json) { wait_for_ready_value wait_for_ready = WAIT_FOR_READY_UNSET; grpc_millis timeout = 0; - for (grpc_json *field = json->child; field != NULL; field = field->next) { - if (field->key == NULL) continue; + for (grpc_json* field = json->child; field != nullptr; field = field->next) { + if (field->key == nullptr) continue; if (strcmp(field->key, "waitForReady") == 0) { - if (wait_for_ready != WAIT_FOR_READY_UNSET) return NULL; // Duplicate. - if (!parse_wait_for_ready(field, &wait_for_ready)) return NULL; + if (wait_for_ready != WAIT_FOR_READY_UNSET) return nullptr; // Duplicate. + if (!parse_wait_for_ready(field, &wait_for_ready)) return nullptr; } else if (strcmp(field->key, "timeout") == 0) { - if (timeout > 0) return NULL; // Duplicate. - if (!parse_timeout(field, &timeout)) return NULL; + if (timeout > 0) return nullptr; // Duplicate. + if (!parse_timeout(field, &timeout)) return nullptr; } } - method_parameters *value = - (method_parameters *)gpr_malloc(sizeof(method_parameters)); + method_parameters* value = + (method_parameters*)gpr_malloc(sizeof(method_parameters)); gpr_ref_init(&value->refs, 1); value->timeout = timeout; value->wait_for_ready = wait_for_ready; @@ -169,24 +166,24 @@ struct external_connectivity_watcher; typedef struct client_channel_channel_data { /** resolver for this channel */ - grpc_resolver *resolver; + grpc_resolver* resolver; /** have we started resolving this channel */ bool started_resolving; /** is deadline checking enabled? */ bool deadline_checking_enabled; /** client channel factory */ - grpc_client_channel_factory *client_channel_factory; + grpc_client_channel_factory* client_channel_factory; /** combiner protecting all variables below in this data structure */ - grpc_combiner *combiner; + grpc_combiner* combiner; /** currently active load balancer */ - grpc_lb_policy *lb_policy; + grpc_lb_policy* lb_policy; /** retry throttle data */ - grpc_server_retry_throttle_data *retry_throttle_data; + grpc_server_retry_throttle_data* retry_throttle_data; /** maps method names to method_parameters structs */ - grpc_slice_hash_table *method_params_table; + grpc_slice_hash_table* method_params_table; /** incoming resolver result - set by resolver.next() */ - grpc_channel_args *resolver_result; + grpc_channel_args* resolver_result; /** a list of closures that are all waiting for resolver result to come in */ grpc_closure_list waiting_for_resolver_result_closures; /** resolver callback */ @@ -196,47 +193,47 @@ typedef struct client_channel_channel_data { /** when an lb_policy arrives, should we try to exit idle */ bool exit_idle_when_lb_policy_arrives; /** owning stack */ - grpc_channel_stack *owning_stack; + grpc_channel_stack* owning_stack; /** interested parties (owned) */ - grpc_pollset_set *interested_parties; + grpc_pollset_set* interested_parties; /* external_connectivity_watcher_list head is guarded by its own mutex, since * counts need to be grabbed immediately without polling on a cq */ gpr_mu external_connectivity_watcher_list_mu; - struct external_connectivity_watcher *external_connectivity_watcher_list_head; + struct external_connectivity_watcher* external_connectivity_watcher_list_head; /* the following properties are guarded by a mutex since API's require them to be instantaneously available */ gpr_mu info_mu; - char *info_lb_policy_name; + char* info_lb_policy_name; /** service config in JSON form */ - char *info_service_config_json; + char* info_service_config_json; } channel_data; /** We create one watcher for each new lb_policy that is returned from a resolver, to watch for state changes from the lb_policy. When a state change is seen, we update the channel, and create a new watcher. */ typedef struct { - channel_data *chand; + channel_data* chand; grpc_closure on_changed; grpc_connectivity_state state; - grpc_lb_policy *lb_policy; + grpc_lb_policy* lb_policy; } lb_policy_connectivity_watcher; -static void watch_lb_policy_locked(grpc_exec_ctx *exec_ctx, channel_data *chand, - grpc_lb_policy *lb_policy, +static void watch_lb_policy_locked(grpc_exec_ctx* exec_ctx, channel_data* chand, + grpc_lb_policy* lb_policy, grpc_connectivity_state current_state); -static void set_channel_connectivity_state_locked(grpc_exec_ctx *exec_ctx, - channel_data *chand, +static void set_channel_connectivity_state_locked(grpc_exec_ctx* exec_ctx, + channel_data* chand, grpc_connectivity_state state, - grpc_error *error, - const char *reason) { + grpc_error* error, + const char* reason) { /* TODO: Improve failure handling: * - Make it possible for policies to return GRPC_CHANNEL_TRANSIENT_FAILURE. * - Hand over pending picks from old policies during the switch that happens * when resolver provides an update. */ - if (chand->lb_policy != NULL) { + if (chand->lb_policy != nullptr) { if (state == GRPC_CHANNEL_TRANSIENT_FAILURE) { /* cancel picks with wait_for_ready=false */ grpc_lb_policy_cancel_picks_locked( @@ -250,7 +247,7 @@ static void set_channel_connectivity_state_locked(grpc_exec_ctx *exec_ctx, GRPC_ERROR_REF(error)); } } - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: setting connectivity state to %s", chand, grpc_connectivity_state_name(state)); } @@ -258,21 +255,22 @@ static void set_channel_connectivity_state_locked(grpc_exec_ctx *exec_ctx, reason); } -static void on_lb_policy_state_changed_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - lb_policy_connectivity_watcher *w = (lb_policy_connectivity_watcher *)arg; +static void on_lb_policy_state_changed_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + lb_policy_connectivity_watcher* w = (lb_policy_connectivity_watcher*)arg; grpc_connectivity_state publish_state = w->state; /* check if the notification is for the latest policy */ if (w->lb_policy == w->chand->lb_policy) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: lb_policy=%p state changed to %s", w->chand, w->lb_policy, grpc_connectivity_state_name(w->state)); } - if (publish_state == GRPC_CHANNEL_SHUTDOWN && w->chand->resolver != NULL) { + if (publish_state == GRPC_CHANNEL_SHUTDOWN && + w->chand->resolver != nullptr) { publish_state = GRPC_CHANNEL_TRANSIENT_FAILURE; grpc_resolver_channel_saw_error_locked(exec_ctx, w->chand->resolver); GRPC_LB_POLICY_UNREF(exec_ctx, w->chand->lb_policy, "channel"); - w->chand->lb_policy = NULL; + w->chand->lb_policy = nullptr; } set_channel_connectivity_state_locked(exec_ctx, w->chand, publish_state, GRPC_ERROR_REF(error), "lb_changed"); @@ -284,11 +282,11 @@ static void on_lb_policy_state_changed_locked(grpc_exec_ctx *exec_ctx, gpr_free(w); } -static void watch_lb_policy_locked(grpc_exec_ctx *exec_ctx, channel_data *chand, - grpc_lb_policy *lb_policy, +static void watch_lb_policy_locked(grpc_exec_ctx* exec_ctx, channel_data* chand, + grpc_lb_policy* lb_policy, grpc_connectivity_state current_state) { - lb_policy_connectivity_watcher *w = - (lb_policy_connectivity_watcher *)gpr_malloc(sizeof(*w)); + lb_policy_connectivity_watcher* w = + (lb_policy_connectivity_watcher*)gpr_malloc(sizeof(*w)); GRPC_CHANNEL_STACK_REF(chand->owning_stack, "watch_lb_policy"); w->chand = chand; GRPC_CLOSURE_INIT(&w->on_changed, on_lb_policy_state_changed_locked, w, @@ -299,9 +297,9 @@ static void watch_lb_policy_locked(grpc_exec_ctx *exec_ctx, channel_data *chand, &w->on_changed); } -static void start_resolving_locked(grpc_exec_ctx *exec_ctx, - channel_data *chand) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void start_resolving_locked(grpc_exec_ctx* exec_ctx, + channel_data* chand) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: starting name resolution", chand); } GPR_ASSERT(!chand->started_resolving); @@ -312,21 +310,21 @@ static void start_resolving_locked(grpc_exec_ctx *exec_ctx, } typedef struct { - char *server_name; - grpc_server_retry_throttle_data *retry_throttle_data; + char* server_name; + grpc_server_retry_throttle_data* retry_throttle_data; } service_config_parsing_state; -static void parse_retry_throttle_params(const grpc_json *field, void *arg) { - service_config_parsing_state *parsing_state = - (service_config_parsing_state *)arg; +static void parse_retry_throttle_params(const grpc_json* field, void* arg) { + service_config_parsing_state* parsing_state = + (service_config_parsing_state*)arg; if (strcmp(field->key, "retryThrottling") == 0) { - if (parsing_state->retry_throttle_data != NULL) return; // Duplicate. + if (parsing_state->retry_throttle_data != nullptr) return; // Duplicate. if (field->type != GRPC_JSON_OBJECT) return; int max_milli_tokens = 0; int milli_token_ratio = 0; - for (grpc_json *sub_field = field->child; sub_field != NULL; + for (grpc_json* sub_field = field->child; sub_field != nullptr; sub_field = sub_field->next) { - if (sub_field->key == NULL) return; + if (sub_field->key == nullptr) return; if (strcmp(sub_field->key, "maxTokens") == 0) { if (max_milli_tokens != 0) return; // Duplicate. if (sub_field->type != GRPC_JSON_NUMBER) return; @@ -340,8 +338,8 @@ static void parse_retry_throttle_params(const grpc_json *field, void *arg) { size_t whole_len = strlen(sub_field->value); uint32_t multiplier = 1; uint32_t decimal_value = 0; - const char *decimal_point = strchr(sub_field->value, '.'); - if (decimal_point != NULL) { + const char* decimal_point = strchr(sub_field->value, '.'); + if (decimal_point != nullptr) { whole_len = (size_t)(decimal_point - sub_field->value); multiplier = 1000; size_t decimal_len = strlen(decimal_point + 1); @@ -371,27 +369,27 @@ static void parse_retry_throttle_params(const grpc_json *field, void *arg) { } } -static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - channel_data *chand = (channel_data *)arg; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void on_resolver_result_changed_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + channel_data* chand = (channel_data*)arg; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: got resolver result: error=%s", chand, grpc_error_string(error)); } // Extract the following fields from the resolver result, if non-NULL. bool lb_policy_updated = false; - char *lb_policy_name_dup = NULL; + char* lb_policy_name_dup = nullptr; bool lb_policy_name_changed = false; - grpc_lb_policy *new_lb_policy = NULL; - char *service_config_json = NULL; - grpc_server_retry_throttle_data *retry_throttle_data = NULL; - grpc_slice_hash_table *method_params_table = NULL; - if (chand->resolver_result != NULL) { + grpc_lb_policy* new_lb_policy = nullptr; + char* service_config_json = nullptr; + grpc_server_retry_throttle_data* retry_throttle_data = nullptr; + grpc_slice_hash_table* method_params_table = nullptr; + if (chand->resolver_result != nullptr) { // Find LB policy name. - const char *lb_policy_name = NULL; - const grpc_arg *channel_arg = + const char* lb_policy_name = nullptr; + const grpc_arg* channel_arg = grpc_channel_args_find(chand->resolver_result, GRPC_ARG_LB_POLICY_NAME); - if (channel_arg != NULL) { + if (channel_arg != nullptr) { GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING); lb_policy_name = channel_arg->value.string; } @@ -399,9 +397,9 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // the grpclb policy, regardless of what the resolver actually specified. channel_arg = grpc_channel_args_find(chand->resolver_result, GRPC_ARG_LB_ADDRESSES); - if (channel_arg != NULL && channel_arg->type == GRPC_ARG_POINTER) { - grpc_lb_addresses *addresses = - (grpc_lb_addresses *)channel_arg->value.pointer.p; + if (channel_arg != nullptr && channel_arg->type == GRPC_ARG_POINTER) { + grpc_lb_addresses* addresses = + (grpc_lb_addresses*)channel_arg->value.pointer.p; bool found_balancer_address = false; for (size_t i = 0; i < addresses->num_addresses; ++i) { if (addresses->addresses[i].is_balancer) { @@ -410,7 +408,8 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, } } if (found_balancer_address) { - if (lb_policy_name != NULL && strcmp(lb_policy_name, "grpclb") != 0) { + if (lb_policy_name != nullptr && + strcmp(lb_policy_name, "grpclb") != 0) { gpr_log(GPR_INFO, "resolver requested LB policy %s but provided at least one " "balancer address -- forcing use of grpclb LB policy", @@ -421,7 +420,7 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, } // Use pick_first if nothing was specified and we didn't select grpclb // above. - if (lb_policy_name == NULL) lb_policy_name = "pick_first"; + if (lb_policy_name == nullptr) lb_policy_name = "pick_first"; grpc_lb_policy_args lb_policy_args; lb_policy_args.args = chand->resolver_result; lb_policy_args.client_channel_factory = chand->client_channel_factory; @@ -432,9 +431,9 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // only thing that modifies its value, and it can only be invoked // once at any given time. lb_policy_name_changed = - chand->info_lb_policy_name == NULL || + chand->info_lb_policy_name == nullptr || strcmp(chand->info_lb_policy_name, lb_policy_name) != 0; - if (chand->lb_policy != NULL && !lb_policy_name_changed) { + if (chand->lb_policy != nullptr && !lb_policy_name_changed) { // Continue using the same LB policy. Update with new addresses. lb_policy_updated = true; grpc_lb_policy_update_locked(exec_ctx, chand->lb_policy, &lb_policy_args); @@ -442,24 +441,24 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // Instantiate new LB policy. new_lb_policy = grpc_lb_policy_create(exec_ctx, lb_policy_name, &lb_policy_args); - if (new_lb_policy == NULL) { + if (new_lb_policy == nullptr) { gpr_log(GPR_ERROR, "could not create LB policy \"%s\"", lb_policy_name); } } // Find service config. channel_arg = grpc_channel_args_find(chand->resolver_result, GRPC_ARG_SERVICE_CONFIG); - if (channel_arg != NULL) { + if (channel_arg != nullptr) { GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING); service_config_json = gpr_strdup(channel_arg->value.string); - grpc_service_config *service_config = + grpc_service_config* service_config = grpc_service_config_create(service_config_json); - if (service_config != NULL) { + if (service_config != nullptr) { channel_arg = grpc_channel_args_find(chand->resolver_result, GRPC_ARG_SERVER_URI); - GPR_ASSERT(channel_arg != NULL); + GPR_ASSERT(channel_arg != nullptr); GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING); - grpc_uri *uri = + grpc_uri* uri = grpc_uri_parse(exec_ctx, channel_arg->value.string, true); GPR_ASSERT(uri->path[0] != '\0'); service_config_parsing_state parsing_state; @@ -472,7 +471,7 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, retry_throttle_data = parsing_state.retry_throttle_data; method_params_table = grpc_service_config_create_method_config_table( exec_ctx, service_config, method_parameters_create_from_json, - method_parameters_free); + method_parameters_ref_wrapper, method_parameters_unref_wrapper); grpc_service_config_destroy(service_config); } } @@ -481,9 +480,9 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // The copy will be saved in chand->lb_policy_name below. lb_policy_name_dup = gpr_strdup(lb_policy_name); grpc_channel_args_destroy(exec_ctx, chand->resolver_result); - chand->resolver_result = NULL; + chand->resolver_result = nullptr; } - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: resolver result: lb_policy_name=\"%s\"%s, " "service_config=\"%s\"", @@ -496,22 +495,22 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // // First, swap out the data used by cc_get_channel_info(). gpr_mu_lock(&chand->info_mu); - if (lb_policy_name_dup != NULL) { + if (lb_policy_name_dup != nullptr) { gpr_free(chand->info_lb_policy_name); chand->info_lb_policy_name = lb_policy_name_dup; } - if (service_config_json != NULL) { + if (service_config_json != nullptr) { gpr_free(chand->info_service_config_json); chand->info_service_config_json = service_config_json; } gpr_mu_unlock(&chand->info_mu); // Swap out the retry throttle data. - if (chand->retry_throttle_data != NULL) { + if (chand->retry_throttle_data != nullptr) { grpc_server_retry_throttle_data_unref(chand->retry_throttle_data); } chand->retry_throttle_data = retry_throttle_data; // Swap out the method params table. - if (chand->method_params_table != NULL) { + if (chand->method_params_table != nullptr) { grpc_slice_hash_table_unref(exec_ctx, chand->method_params_table); } chand->method_params_table = method_params_table; @@ -521,10 +520,10 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, // Note that we do NOT do this if either (a) we updated the existing // LB policy above or (b) we failed to create the new LB policy (in // which case we want to continue using the most recent one we had). - if (new_lb_policy != NULL || error != GRPC_ERROR_NONE || - chand->resolver == NULL) { - if (chand->lb_policy != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (new_lb_policy != nullptr || error != GRPC_ERROR_NONE || + chand->resolver == nullptr) { + if (chand->lb_policy != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: unreffing lb_policy=%p", chand, chand->lb_policy); } @@ -537,17 +536,17 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, } // Now that we've swapped out the relevant fields of chand, check for // error or shutdown. - if (error != GRPC_ERROR_NONE || chand->resolver == NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (error != GRPC_ERROR_NONE || chand->resolver == nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: shutting down", chand); } - if (chand->resolver != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (chand->resolver != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: shutting down resolver", chand); } grpc_resolver_shutdown_locked(exec_ctx, chand->resolver); GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); - chand->resolver = NULL; + chand->resolver = nullptr; } set_channel_connectivity_state_locked( exec_ctx, chand, GRPC_CHANNEL_SHUTDOWN, @@ -562,10 +561,10 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, &chand->waiting_for_resolver_result_closures); } else { // Not shutting down. grpc_connectivity_state state = GRPC_CHANNEL_TRANSIENT_FAILURE; - grpc_error *state_error = + grpc_error* state_error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("No load balancing policy"); - if (new_lb_policy != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (new_lb_policy != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p: initializing new LB policy", chand); } GRPC_ERROR_UNREF(state_error); @@ -594,53 +593,53 @@ static void on_resolver_result_changed_locked(grpc_exec_ctx *exec_ctx, } } -static void start_transport_op_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error_ignored) { - grpc_transport_op *op = (grpc_transport_op *)arg; - grpc_channel_element *elem = - (grpc_channel_element *)op->handler_private.extra_arg; - channel_data *chand = (channel_data *)elem->channel_data; +static void start_transport_op_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error_ignored) { + grpc_transport_op* op = (grpc_transport_op*)arg; + grpc_channel_element* elem = + (grpc_channel_element*)op->handler_private.extra_arg; + channel_data* chand = (channel_data*)elem->channel_data; - if (op->on_connectivity_state_change != NULL) { + if (op->on_connectivity_state_change != nullptr) { grpc_connectivity_state_notify_on_state_change( exec_ctx, &chand->state_tracker, op->connectivity_state, op->on_connectivity_state_change); - op->on_connectivity_state_change = NULL; - op->connectivity_state = NULL; + op->on_connectivity_state_change = nullptr; + op->connectivity_state = nullptr; } - if (op->send_ping != NULL) { - if (chand->lb_policy == NULL) { + if (op->send_ping != nullptr) { + if (chand->lb_policy == nullptr) { GRPC_CLOSURE_SCHED( exec_ctx, op->send_ping, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Ping with no load balancing")); } else { grpc_lb_policy_ping_one_locked(exec_ctx, chand->lb_policy, op->send_ping); - op->bind_pollset = NULL; + op->bind_pollset = nullptr; } - op->send_ping = NULL; + op->send_ping = nullptr; } if (op->disconnect_with_error != GRPC_ERROR_NONE) { - if (chand->resolver != NULL) { + if (chand->resolver != nullptr) { set_channel_connectivity_state_locked( exec_ctx, chand, GRPC_CHANNEL_SHUTDOWN, GRPC_ERROR_REF(op->disconnect_with_error), "disconnect"); grpc_resolver_shutdown_locked(exec_ctx, chand->resolver); GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); - chand->resolver = NULL; + chand->resolver = nullptr; if (!chand->started_resolving) { grpc_closure_list_fail_all(&chand->waiting_for_resolver_result_closures, GRPC_ERROR_REF(op->disconnect_with_error)); GRPC_CLOSURE_LIST_SCHED(exec_ctx, &chand->waiting_for_resolver_result_closures); } - if (chand->lb_policy != NULL) { + if (chand->lb_policy != nullptr) { grpc_pollset_set_del_pollset_set(exec_ctx, chand->lb_policy->interested_parties, chand->interested_parties); GRPC_LB_POLICY_UNREF(exec_ctx, chand->lb_policy, "channel"); - chand->lb_policy = NULL; + chand->lb_policy = nullptr; } } GRPC_ERROR_UNREF(op->disconnect_with_error); @@ -650,13 +649,13 @@ static void start_transport_op_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_CLOSURE_SCHED(exec_ctx, op->on_consumed, GRPC_ERROR_NONE); } -static void cc_start_transport_op(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_transport_op *op) { - channel_data *chand = (channel_data *)elem->channel_data; +static void cc_start_transport_op(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_transport_op* op) { + channel_data* chand = (channel_data*)elem->channel_data; GPR_ASSERT(op->set_accept_stream == false); - if (op->bind_pollset != NULL) { + if (op->bind_pollset != nullptr) { grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties, op->bind_pollset); } @@ -670,30 +669,30 @@ static void cc_start_transport_op(grpc_exec_ctx *exec_ctx, GRPC_ERROR_NONE); } -static void cc_get_channel_info(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - const grpc_channel_info *info) { - channel_data *chand = (channel_data *)elem->channel_data; +static void cc_get_channel_info(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + const grpc_channel_info* info) { + channel_data* chand = (channel_data*)elem->channel_data; gpr_mu_lock(&chand->info_mu); - if (info->lb_policy_name != NULL) { - *info->lb_policy_name = chand->info_lb_policy_name == NULL - ? NULL + if (info->lb_policy_name != nullptr) { + *info->lb_policy_name = chand->info_lb_policy_name == nullptr + ? nullptr : gpr_strdup(chand->info_lb_policy_name); } - if (info->service_config_json != NULL) { + if (info->service_config_json != nullptr) { *info->service_config_json = - chand->info_service_config_json == NULL - ? NULL + chand->info_service_config_json == nullptr + ? nullptr : gpr_strdup(chand->info_service_config_json); } gpr_mu_unlock(&chand->info_mu); } /* Constructor for channel_data */ -static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { - channel_data *chand = (channel_data *)elem->channel_data; +static grpc_error* cc_init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { + channel_data* chand = (channel_data*)elem->channel_data; GPR_ASSERT(args->is_last); GPR_ASSERT(elem->filter == &grpc_client_channel_filter); // Initialize data members. @@ -702,7 +701,7 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, gpr_mu_init(&chand->external_connectivity_watcher_list_mu); gpr_mu_lock(&chand->external_connectivity_watcher_list_mu); - chand->external_connectivity_watcher_list_head = NULL; + chand->external_connectivity_watcher_list_head = nullptr; gpr_mu_unlock(&chand->external_connectivity_watcher_list_mu); chand->owning_stack = args->channel_stack; @@ -712,10 +711,11 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, chand->interested_parties = grpc_pollset_set_create(); grpc_connectivity_state_init(&chand->state_tracker, GRPC_CHANNEL_IDLE, "client_channel"); + grpc_client_channel_start_backup_polling(exec_ctx, chand->interested_parties); // Record client channel factory. - const grpc_arg *arg = grpc_channel_args_find(args->channel_args, + const grpc_arg* arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_CLIENT_CHANNEL_FACTORY); - if (arg == NULL) { + if (arg == nullptr) { return GRPC_ERROR_CREATE_FROM_STATIC_STRING( "Missing client channel factory in args for client channel filter"); } @@ -724,12 +724,12 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, "client channel factory arg must be a pointer"); } grpc_client_channel_factory_ref( - (grpc_client_channel_factory *)arg->value.pointer.p); + (grpc_client_channel_factory*)arg->value.pointer.p); chand->client_channel_factory = - (grpc_client_channel_factory *)arg->value.pointer.p; + (grpc_client_channel_factory*)arg->value.pointer.p; // Get server name to resolve, using proxy mapper if needed. arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_SERVER_URI); - if (arg == NULL) { + if (arg == nullptr) { return GRPC_ERROR_CREATE_FROM_STATIC_STRING( "Missing server uri in args for client channel filter"); } @@ -737,18 +737,18 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_CREATE_FROM_STATIC_STRING( "server uri arg must be a string"); } - char *proxy_name = NULL; - grpc_channel_args *new_args = NULL; + char* proxy_name = nullptr; + grpc_channel_args* new_args = nullptr; grpc_proxy_mappers_map_name(exec_ctx, arg->value.string, args->channel_args, &proxy_name, &new_args); // Instantiate resolver. chand->resolver = grpc_resolver_create( - exec_ctx, proxy_name != NULL ? proxy_name : arg->value.string, - new_args != NULL ? new_args : args->channel_args, + exec_ctx, proxy_name != nullptr ? proxy_name : arg->value.string, + new_args != nullptr ? new_args : args->channel_args, chand->interested_parties, chand->combiner); - if (proxy_name != NULL) gpr_free(proxy_name); - if (new_args != NULL) grpc_channel_args_destroy(exec_ctx, new_args); - if (chand->resolver == NULL) { + if (proxy_name != nullptr) gpr_free(proxy_name); + if (new_args != nullptr) grpc_channel_args_destroy(exec_ctx, new_args); + if (chand->resolver == nullptr) { return GRPC_ERROR_CREATE_FROM_STATIC_STRING("resolver creation failed"); } chand->deadline_checking_enabled = @@ -756,27 +756,28 @@ static grpc_error *cc_init_channel_elem(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static void shutdown_resolver_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_resolver *resolver = (grpc_resolver *)arg; +static void shutdown_resolver_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_resolver* resolver = (grpc_resolver*)arg; grpc_resolver_shutdown_locked(exec_ctx, resolver); GRPC_RESOLVER_UNREF(exec_ctx, resolver, "channel"); } /* Destructor for channel_data */ -static void cc_destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - if (chand->resolver != NULL) { +static void cc_destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; + if (chand->resolver != nullptr) { GRPC_CLOSURE_SCHED( - exec_ctx, GRPC_CLOSURE_CREATE(shutdown_resolver_locked, chand->resolver, - grpc_combiner_scheduler(chand->combiner)), + exec_ctx, + GRPC_CLOSURE_CREATE(shutdown_resolver_locked, chand->resolver, + grpc_combiner_scheduler(chand->combiner)), GRPC_ERROR_NONE); } - if (chand->client_channel_factory != NULL) { + if (chand->client_channel_factory != nullptr) { grpc_client_channel_factory_unref(exec_ctx, chand->client_channel_factory); } - if (chand->lb_policy != NULL) { + if (chand->lb_policy != nullptr) { grpc_pollset_set_del_pollset_set(exec_ctx, chand->lb_policy->interested_parties, chand->interested_parties); @@ -784,12 +785,13 @@ static void cc_destroy_channel_elem(grpc_exec_ctx *exec_ctx, } gpr_free(chand->info_lb_policy_name); gpr_free(chand->info_service_config_json); - if (chand->retry_throttle_data != NULL) { + if (chand->retry_throttle_data != nullptr) { grpc_server_retry_throttle_data_unref(chand->retry_throttle_data); } - if (chand->method_params_table != NULL) { + if (chand->method_params_table != nullptr) { grpc_slice_hash_table_unref(exec_ctx, chand->method_params_table); } + grpc_client_channel_stop_backup_polling(exec_ctx, chand->interested_parties); grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker); grpc_pollset_set_destroy(exec_ctx, chand->interested_parties); GRPC_COMBINER_UNREF(exec_ctx, chand->combiner, "client_channel"); @@ -829,47 +831,47 @@ typedef struct client_channel_call_data { grpc_slice path; // Request path. gpr_timespec call_start_time; grpc_millis deadline; - gpr_arena *arena; - grpc_call_stack *owning_call; - grpc_call_combiner *call_combiner; + gpr_arena* arena; + grpc_call_stack* owning_call; + grpc_call_combiner* call_combiner; - grpc_server_retry_throttle_data *retry_throttle_data; - method_parameters *method_params; + grpc_server_retry_throttle_data* retry_throttle_data; + method_parameters* method_params; - grpc_subchannel_call *subchannel_call; - grpc_error *error; + grpc_subchannel_call* subchannel_call; + grpc_error* error; - grpc_lb_policy *lb_policy; // Holds ref while LB pick is pending. + grpc_lb_policy* lb_policy; // Holds ref while LB pick is pending. grpc_closure lb_pick_closure; grpc_closure lb_pick_cancel_closure; - grpc_connected_subchannel *connected_subchannel; + grpc_connected_subchannel* connected_subchannel; grpc_call_context_element subchannel_call_context[GRPC_CONTEXT_COUNT]; - grpc_polling_entity *pollent; + grpc_polling_entity* pollent; - grpc_transport_stream_op_batch *waiting_for_pick_batches[MAX_WAITING_BATCHES]; + grpc_transport_stream_op_batch* waiting_for_pick_batches[MAX_WAITING_BATCHES]; size_t waiting_for_pick_batches_count; grpc_closure handle_pending_batch_in_call_combiner[MAX_WAITING_BATCHES]; - grpc_transport_stream_op_batch *initial_metadata_batch; + grpc_transport_stream_op_batch* initial_metadata_batch; grpc_linked_mdelem lb_token_mdelem; grpc_closure on_complete; - grpc_closure *original_on_complete; + grpc_closure* original_on_complete; } call_data; -grpc_subchannel_call *grpc_client_channel_get_subchannel_call( - grpc_call_element *elem) { - call_data *calld = (call_data *)elem->call_data; +grpc_subchannel_call* grpc_client_channel_get_subchannel_call( + grpc_call_element* elem) { + call_data* calld = (call_data*)elem->call_data; return calld->subchannel_call; } // This is called via the call combiner, so access to calld is synchronized. static void waiting_for_pick_batches_add( - call_data *calld, grpc_transport_stream_op_batch *batch) { + call_data* calld, grpc_transport_stream_op_batch* batch) { if (batch->send_initial_metadata) { - GPR_ASSERT(calld->initial_metadata_batch == NULL); + GPR_ASSERT(calld->initial_metadata_batch == nullptr); calld->initial_metadata_batch = batch; } else { GPR_ASSERT(calld->waiting_for_pick_batches_count < MAX_WAITING_BATCHES); @@ -879,9 +881,9 @@ static void waiting_for_pick_batches_add( } // This is called via the call combiner, so access to calld is synchronized. -static void fail_pending_batch_in_call_combiner(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - call_data *calld = (call_data *)arg; +static void fail_pending_batch_in_call_combiner(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + call_data* calld = (call_data*)arg; if (calld->waiting_for_pick_batches_count > 0) { --calld->waiting_for_pick_batches_count; grpc_transport_stream_op_batch_finish_with_failure( @@ -892,13 +894,13 @@ static void fail_pending_batch_in_call_combiner(grpc_exec_ctx *exec_ctx, } // This is called via the call combiner, so access to calld is synchronized. -static void waiting_for_pick_batches_fail(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_error *error) { - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void waiting_for_pick_batches_fail(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_error* error) { + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, - "chand=%p calld=%p: failing %" PRIdPTR " pending batches: %s", + "chand=%p calld=%p: failing %" PRIuPTR " pending batches: %s", elem->channel_data, calld, calld->waiting_for_pick_batches_count, grpc_error_string(error)); } @@ -911,7 +913,7 @@ static void waiting_for_pick_batches_fail(grpc_exec_ctx *exec_ctx, GRPC_ERROR_REF(error), "waiting_for_pick_batches_fail"); } - if (calld->initial_metadata_batch != NULL) { + if (calld->initial_metadata_batch != nullptr) { grpc_transport_stream_op_batch_finish_with_failure( exec_ctx, calld->initial_metadata_batch, GRPC_ERROR_REF(error), calld->call_combiner); @@ -923,9 +925,9 @@ static void waiting_for_pick_batches_fail(grpc_exec_ctx *exec_ctx, } // This is called via the call combiner, so access to calld is synchronized. -static void run_pending_batch_in_call_combiner(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *ignored) { - call_data *calld = (call_data *)arg; +static void run_pending_batch_in_call_combiner(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* ignored) { + call_data* calld = (call_data*)arg; if (calld->waiting_for_pick_batches_count > 0) { --calld->waiting_for_pick_batches_count; grpc_subchannel_call_process_op( @@ -935,13 +937,14 @@ static void run_pending_batch_in_call_combiner(grpc_exec_ctx *exec_ctx, } // This is called via the call combiner, so access to calld is synchronized. -static void waiting_for_pick_batches_resume(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { - gpr_log(GPR_DEBUG, "chand=%p calld=%p: sending %" PRIdPTR - " pending batches to subchannel_call=%p", +static void waiting_for_pick_batches_resume(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { + gpr_log(GPR_DEBUG, + "chand=%p calld=%p: sending %" PRIuPTR + " pending batches to subchannel_call=%p", chand, calld, calld->waiting_for_pick_batches_count, calld->subchannel_call); } @@ -954,29 +957,29 @@ static void waiting_for_pick_batches_resume(grpc_exec_ctx *exec_ctx, GRPC_ERROR_NONE, "waiting_for_pick_batches_resume"); } - GPR_ASSERT(calld->initial_metadata_batch != NULL); + GPR_ASSERT(calld->initial_metadata_batch != nullptr); grpc_subchannel_call_process_op(exec_ctx, calld->subchannel_call, calld->initial_metadata_batch); } // Applies service config to the call. Must be invoked once we know // that the resolver has returned results to the channel. -static void apply_service_config_to_call_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void apply_service_config_to_call_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: applying service config to call", chand, calld); } - if (chand->retry_throttle_data != NULL) { + if (chand->retry_throttle_data != nullptr) { calld->retry_throttle_data = grpc_server_retry_throttle_data_ref(chand->retry_throttle_data); } - if (chand->method_params_table != NULL) { - calld->method_params = (method_parameters *)grpc_method_config_table_get( + if (chand->method_params_table != nullptr) { + calld->method_params = (method_parameters*)grpc_method_config_table_get( exec_ctx, chand->method_params_table, calld->path); - if (calld->method_params != NULL) { + if (calld->method_params != nullptr) { method_parameters_ref(calld->method_params); // If the deadline from the service config is shorter than the one // from the client API, reset the deadline timer. @@ -994,11 +997,11 @@ static void apply_service_config_to_call_locked(grpc_exec_ctx *exec_ctx, } } -static void create_subchannel_call_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_error *error) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; +static void create_subchannel_call_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_error* error) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; const grpc_connected_subchannel_call_args call_args = { calld->pollent, // pollent calld->path, // path @@ -1008,10 +1011,10 @@ static void create_subchannel_call_locked(grpc_exec_ctx *exec_ctx, calld->subchannel_call_context, // context calld->call_combiner // call_combiner }; - grpc_error *new_error = grpc_connected_subchannel_create_call( + grpc_error* new_error = grpc_connected_subchannel_create_call( exec_ctx, calld->connected_subchannel, &call_args, &calld->subchannel_call); - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: create subchannel_call=%p: error=%s", chand, calld, calld->subchannel_call, grpc_error_string(new_error)); } @@ -1025,11 +1028,11 @@ static void create_subchannel_call_locked(grpc_exec_ctx *exec_ctx, } // Invoked when a pick is completed, on both success or failure. -static void pick_done_locked(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_error *error) { - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; - if (calld->connected_subchannel == NULL) { +static void pick_done_locked(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_error* error) { + call_data* calld = (call_data*)elem->call_data; + channel_data* chand = (channel_data*)elem->channel_data; + if (calld->connected_subchannel == nullptr) { // Failed to create subchannel. GRPC_ERROR_UNREF(calld->error); calld->error = error == GRPC_ERROR_NONE @@ -1037,7 +1040,7 @@ static void pick_done_locked(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, "Call dropped by load balancing policy") : GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Failed to create subchannel", &error, 1); - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: failed to create subchannel: error=%s", chand, calld, grpc_error_string(calld->error)); @@ -1054,10 +1057,10 @@ static void pick_done_locked(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, // either (a) the pick was deferred pending a resolver result or (b) the // pick was done asynchronously. Removes the call's polling entity from // chand->interested_parties before invoking pick_done_locked(). -static void async_pick_done_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, grpc_error *error) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; +static void async_pick_done_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, grpc_error* error) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; grpc_polling_entity_del_from_pollset_set(exec_ctx, calld->pollent, chand->interested_parties); pick_done_locked(exec_ctx, elem, error); @@ -1065,13 +1068,13 @@ static void async_pick_done_locked(grpc_exec_ctx *exec_ctx, // Note: This runs under the client_channel combiner, but will NOT be // holding the call combiner. -static void pick_callback_cancel_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (calld->lb_policy != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void pick_callback_cancel_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (calld->lb_policy != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: cancelling pick from LB policy %p", chand, calld, calld->lb_policy); } @@ -1084,29 +1087,29 @@ static void pick_callback_cancel_locked(grpc_exec_ctx *exec_ctx, void *arg, // Callback invoked by grpc_lb_policy_pick_locked() for async picks. // Unrefs the LB policy and invokes async_pick_done_locked(). -static void pick_callback_done_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void pick_callback_done_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: pick completed asynchronously", chand, calld); } - GPR_ASSERT(calld->lb_policy != NULL); + GPR_ASSERT(calld->lb_policy != nullptr); GRPC_LB_POLICY_UNREF(exec_ctx, calld->lb_policy, "pick_subchannel"); - calld->lb_policy = NULL; + calld->lb_policy = nullptr; async_pick_done_locked(exec_ctx, elem, GRPC_ERROR_REF(error)); } // Takes a ref to chand->lb_policy and calls grpc_lb_policy_pick_locked(). // If the pick was completed synchronously, unrefs the LB policy and // returns true. -static bool pick_callback_start_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static bool pick_callback_start_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: starting pick on lb_policy=%p", chand, calld, chand->lb_policy); } @@ -1121,7 +1124,7 @@ static bool pick_callback_start_locked(grpc_exec_ctx *exec_ctx, initial_metadata_flags & GRPC_INITIAL_METADATA_WAIT_FOR_READY_EXPLICITLY_SET; const bool wait_for_ready_set_from_service_config = - calld->method_params != NULL && + calld->method_params != nullptr && calld->method_params->wait_for_ready != WAIT_FOR_READY_UNSET; if (!wait_for_ready_set_from_api && wait_for_ready_set_from_service_config) { if (calld->method_params->wait_for_ready == WAIT_FOR_READY_TRUE) { @@ -1141,15 +1144,15 @@ static bool pick_callback_start_locked(grpc_exec_ctx *exec_ctx, grpc_combiner_scheduler(chand->combiner)); const bool pick_done = grpc_lb_policy_pick_locked( exec_ctx, chand->lb_policy, &inputs, &calld->connected_subchannel, - calld->subchannel_call_context, NULL, &calld->lb_pick_closure); + calld->subchannel_call_context, nullptr, &calld->lb_pick_closure); if (pick_done) { /* synchronous grpc_lb_policy_pick call. Unref the LB policy. */ - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: pick completed synchronously", chand, calld); } GRPC_LB_POLICY_UNREF(exec_ctx, calld->lb_policy, "pick_subchannel"); - calld->lb_policy = NULL; + calld->lb_policy = nullptr; } else { GRPC_CALL_STACK_REF(calld->owning_call, "pick_callback_cancel"); grpc_call_combiner_set_notify_on_cancel( @@ -1162,7 +1165,7 @@ static bool pick_callback_start_locked(grpc_exec_ctx *exec_ctx, } typedef struct { - grpc_call_element *elem; + grpc_call_element* elem; bool finished; grpc_closure closure; grpc_closure cancel_closure; @@ -1170,11 +1173,10 @@ typedef struct { // Note: This runs under the client_channel combiner, but will NOT be // holding the call combiner. -static void pick_after_resolver_result_cancel_locked(grpc_exec_ctx *exec_ctx, - void *arg, - grpc_error *error) { - pick_after_resolver_result_args *args = - (pick_after_resolver_result_args *)arg; +static void pick_after_resolver_result_cancel_locked(grpc_exec_ctx* exec_ctx, + void* arg, + grpc_error* error) { + pick_after_resolver_result_args* args = (pick_after_resolver_result_args*)arg; if (args->finished) { gpr_free(args); return; @@ -1187,10 +1189,10 @@ static void pick_after_resolver_result_cancel_locked(grpc_exec_ctx *exec_ctx, // is called, it will be a no-op. We also immediately invoke // async_pick_done_locked() to propagate the error back to the caller. args->finished = true; - grpc_call_element *elem = args->elem; - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + grpc_call_element* elem = args->elem; + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: cancelling pick waiting for resolver result", chand, calld); @@ -1205,34 +1207,33 @@ static void pick_after_resolver_result_cancel_locked(grpc_exec_ctx *exec_ctx, "Pick cancelled", &error, 1)); } -static void pick_after_resolver_result_start_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem); +static void pick_after_resolver_result_start_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem); -static void pick_after_resolver_result_done_locked(grpc_exec_ctx *exec_ctx, - void *arg, - grpc_error *error) { - pick_after_resolver_result_args *args = - (pick_after_resolver_result_args *)arg; +static void pick_after_resolver_result_done_locked(grpc_exec_ctx* exec_ctx, + void* arg, + grpc_error* error) { + pick_after_resolver_result_args* args = (pick_after_resolver_result_args*)arg; if (args->finished) { /* cancelled, do nothing */ - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "call cancelled before resolver result"); } gpr_free(args); return; } args->finished = true; - grpc_call_element *elem = args->elem; - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; + grpc_call_element* elem = args->elem; + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; if (error != GRPC_ERROR_NONE) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: resolver failed to return data", chand, calld); } async_pick_done_locked(exec_ctx, elem, GRPC_ERROR_REF(error)); - } else if (chand->lb_policy != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + } else if (chand->lb_policy != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: resolver returned, doing pick", chand, calld); } @@ -1252,9 +1253,9 @@ static void pick_after_resolver_result_done_locked(grpc_exec_ctx *exec_ctx, // removed in https://github.com/grpc/grpc/pull/12297. Need to figure // out what is actually causing this to occur and then figure out the // right way to deal with it. - else if (chand->resolver != NULL) { + else if (chand->resolver != nullptr) { // No LB policy, so try again. - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: resolver returned but no LB policy, " "trying again", @@ -1262,7 +1263,7 @@ static void pick_after_resolver_result_done_locked(grpc_exec_ctx *exec_ctx, } pick_after_resolver_result_start_locked(exec_ctx, elem); } else { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: resolver disconnected", chand, calld); } @@ -1271,17 +1272,17 @@ static void pick_after_resolver_result_done_locked(grpc_exec_ctx *exec_ctx, } } -static void pick_after_resolver_result_start_locked(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; - call_data *calld = (call_data *)elem->call_data; - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { +static void pick_after_resolver_result_start_locked(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: deferring pick pending resolver result", chand, calld); } - pick_after_resolver_result_args *args = - (pick_after_resolver_result_args *)gpr_zalloc(sizeof(*args)); + pick_after_resolver_result_args* args = + (pick_after_resolver_result_args*)gpr_zalloc(sizeof(*args)); args->elem = elem; GRPC_CLOSURE_INIT(&args->closure, pick_after_resolver_result_done_locked, args, grpc_combiner_scheduler(chand->combiner)); @@ -1294,13 +1295,13 @@ static void pick_after_resolver_result_start_locked(grpc_exec_ctx *exec_ctx, grpc_combiner_scheduler(chand->combiner))); } -static void start_pick_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *ignored) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; - GPR_ASSERT(calld->connected_subchannel == NULL); - if (chand->lb_policy != NULL) { +static void start_pick_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* ignored) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; + channel_data* chand = (channel_data*)elem->channel_data; + GPR_ASSERT(calld->connected_subchannel == nullptr); + if (chand->lb_policy != nullptr) { // We already have an LB policy, so ask it for a pick. if (pick_callback_start_locked(exec_ctx, elem)) { // Pick completed synchronously. @@ -1309,7 +1310,7 @@ static void start_pick_locked(grpc_exec_ctx *exec_ctx, void *arg, } } else { // We do not yet have an LB policy, so wait for a resolver result. - if (chand->resolver == NULL) { + if (chand->resolver == nullptr) { pick_done_locked(exec_ctx, elem, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Disconnected")); return; @@ -1328,10 +1329,10 @@ static void start_pick_locked(grpc_exec_ctx *exec_ctx, void *arg, chand->interested_parties); } -static void on_complete(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; - if (calld->retry_throttle_data != NULL) { +static void on_complete(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; + if (calld->retry_throttle_data != nullptr) { if (error == GRPC_ERROR_NONE) { grpc_server_retry_throttle_data_record_success( calld->retry_throttle_data); @@ -1349,10 +1350,10 @@ static void on_complete(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { } static void cc_start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *batch) { - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* batch) { + call_data* calld = (call_data*)elem->call_data; + channel_data* chand = (channel_data*)elem->channel_data; if (chand->deadline_checking_enabled) { grpc_deadline_state_client_start_transport_stream_op_batch(exec_ctx, elem, batch); @@ -1360,7 +1361,7 @@ static void cc_start_transport_stream_op_batch( GPR_TIMER_BEGIN("cc_start_transport_stream_op_batch", 0); // If we've previously been cancelled, immediately fail any new batches. if (calld->error != GRPC_ERROR_NONE) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: failing batch with error: %s", chand, calld, grpc_error_string(calld->error)); } @@ -1376,13 +1377,13 @@ static void cc_start_transport_stream_op_batch( // error to the caller when the first batch does get passed down. GRPC_ERROR_UNREF(calld->error); calld->error = GRPC_ERROR_REF(batch->payload->cancel_stream.cancel_error); - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: recording cancel_error=%s", chand, calld, grpc_error_string(calld->error)); } // If we have a subchannel call, send the cancellation batch down. // Otherwise, fail all pending batches. - if (calld->subchannel_call != NULL) { + if (calld->subchannel_call != nullptr) { grpc_subchannel_call_process_op(exec_ctx, calld->subchannel_call, batch); } else { waiting_for_pick_batches_add(calld, batch); @@ -1394,7 +1395,7 @@ static void cc_start_transport_stream_op_batch( // Intercept on_complete for recv_trailing_metadata so that we can // check retry throttle status. if (batch->recv_trailing_metadata) { - GPR_ASSERT(batch->on_complete != NULL); + GPR_ASSERT(batch->on_complete != nullptr); calld->original_on_complete = batch->on_complete; GRPC_CLOSURE_INIT(&calld->on_complete, on_complete, elem, grpc_schedule_on_exec_ctx); @@ -1404,8 +1405,8 @@ static void cc_start_transport_stream_op_batch( // Note that once we have completed the pick, we do not need to enter // the channel combiner, which is more efficient (especially for // streaming calls). - if (calld->subchannel_call != NULL) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (calld->subchannel_call != nullptr) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: sending batch to subchannel_call=%p", chand, calld, calld->subchannel_call); @@ -1419,7 +1420,7 @@ static void cc_start_transport_stream_op_batch( // For batches containing a send_initial_metadata op, enter the channel // combiner to start a pick. if (batch->send_initial_metadata) { - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: entering client_channel combiner", chand, calld); } @@ -1430,7 +1431,7 @@ static void cc_start_transport_stream_op_batch( GRPC_ERROR_NONE); } else { // For all other batches, release the call combiner. - if (GRPC_TRACER_ON(grpc_client_channel_trace)) { + if (grpc_client_channel_trace.enabled()) { gpr_log(GPR_DEBUG, "chand=%p calld=%p: saved batch, yeilding call combiner", chand, calld); @@ -1443,11 +1444,11 @@ done: } /* Constructor for call_data */ -static grpc_error *cc_init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; +static grpc_error* cc_init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { + call_data* calld = (call_data*)elem->call_data; + channel_data* chand = (channel_data*)elem->channel_data; // Initialize data members. calld->path = grpc_slice_ref_internal(args->path); calld->call_start_time = args->start_time; @@ -1463,35 +1464,35 @@ static grpc_error *cc_init_call_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for call_data */ -static void cc_destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *then_schedule_closure) { - call_data *calld = (call_data *)elem->call_data; - channel_data *chand = (channel_data *)elem->channel_data; +static void cc_destroy_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* then_schedule_closure) { + call_data* calld = (call_data*)elem->call_data; + channel_data* chand = (channel_data*)elem->channel_data; if (chand->deadline_checking_enabled) { grpc_deadline_state_destroy(exec_ctx, elem); } grpc_slice_unref_internal(exec_ctx, calld->path); - if (calld->method_params != NULL) { + if (calld->method_params != nullptr) { method_parameters_unref(calld->method_params); } GRPC_ERROR_UNREF(calld->error); - if (calld->subchannel_call != NULL) { + if (calld->subchannel_call != nullptr) { grpc_subchannel_call_set_cleanup_closure(calld->subchannel_call, then_schedule_closure); - then_schedule_closure = NULL; + then_schedule_closure = nullptr; GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, calld->subchannel_call, "client_channel_destroy_call"); } - GPR_ASSERT(calld->lb_policy == NULL); + GPR_ASSERT(calld->lb_policy == nullptr); GPR_ASSERT(calld->waiting_for_pick_batches_count == 0); - if (calld->connected_subchannel != NULL) { + if (calld->connected_subchannel != nullptr) { GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, calld->connected_subchannel, "picked"); } for (size_t i = 0; i < GRPC_CONTEXT_COUNT; ++i) { - if (calld->subchannel_call_context[i].value != NULL) { + if (calld->subchannel_call_context[i].value != nullptr) { calld->subchannel_call_context[i].destroy( calld->subchannel_call_context[i].value); } @@ -1499,10 +1500,10 @@ static void cc_destroy_call_elem(grpc_exec_ctx *exec_ctx, GRPC_CLOSURE_SCHED(exec_ctx, then_schedule_closure, GRPC_ERROR_NONE); } -static void cc_set_pollset_or_pollset_set(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_polling_entity *pollent) { - call_data *calld = (call_data *)elem->call_data; +static void cc_set_pollset_or_pollset_set(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_polling_entity* pollent) { + call_data* calld = (call_data*)elem->call_data; calld->pollent = pollent; } @@ -1524,14 +1525,14 @@ const grpc_channel_filter grpc_client_channel_filter = { "client-channel", }; -static void try_to_connect_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error_ignored) { - channel_data *chand = (channel_data *)arg; - if (chand->lb_policy != NULL) { +static void try_to_connect_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error_ignored) { + channel_data* chand = (channel_data*)arg; + if (chand->lb_policy != nullptr) { grpc_lb_policy_exit_idle_locked(exec_ctx, chand->lb_policy); } else { chand->exit_idle_when_lb_policy_arrives = true; - if (!chand->started_resolving && chand->resolver != NULL) { + if (!chand->started_resolving && chand->resolver != nullptr) { start_resolving_locked(exec_ctx, chand); } } @@ -1539,36 +1540,37 @@ static void try_to_connect_locked(grpc_exec_ctx *exec_ctx, void *arg, } grpc_connectivity_state grpc_client_channel_check_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect) { - channel_data *chand = (channel_data *)elem->channel_data; + grpc_exec_ctx* exec_ctx, grpc_channel_element* elem, int try_to_connect) { + channel_data* chand = (channel_data*)elem->channel_data; grpc_connectivity_state out = grpc_connectivity_state_check(&chand->state_tracker); if (out == GRPC_CHANNEL_IDLE && try_to_connect) { GRPC_CHANNEL_STACK_REF(chand->owning_stack, "try_to_connect"); GRPC_CLOSURE_SCHED( - exec_ctx, GRPC_CLOSURE_CREATE(try_to_connect_locked, chand, - grpc_combiner_scheduler(chand->combiner)), + exec_ctx, + GRPC_CLOSURE_CREATE(try_to_connect_locked, chand, + grpc_combiner_scheduler(chand->combiner)), GRPC_ERROR_NONE); } return out; } typedef struct external_connectivity_watcher { - channel_data *chand; + channel_data* chand; grpc_polling_entity pollent; - grpc_closure *on_complete; - grpc_closure *watcher_timer_init; - grpc_connectivity_state *state; + grpc_closure* on_complete; + grpc_closure* watcher_timer_init; + grpc_connectivity_state* state; grpc_closure my_closure; - struct external_connectivity_watcher *next; + struct external_connectivity_watcher* next; } external_connectivity_watcher; -static external_connectivity_watcher *lookup_external_connectivity_watcher( - channel_data *chand, grpc_closure *on_complete) { +static external_connectivity_watcher* lookup_external_connectivity_watcher( + channel_data* chand, grpc_closure* on_complete) { gpr_mu_lock(&chand->external_connectivity_watcher_list_mu); - external_connectivity_watcher *w = + external_connectivity_watcher* w = chand->external_connectivity_watcher_list_head; - while (w != NULL && w->on_complete != on_complete) { + while (w != nullptr && w->on_complete != on_complete) { w = w->next; } gpr_mu_unlock(&chand->external_connectivity_watcher_list_mu); @@ -1576,7 +1578,7 @@ static external_connectivity_watcher *lookup_external_connectivity_watcher( } static void external_connectivity_watcher_list_append( - channel_data *chand, external_connectivity_watcher *w) { + channel_data* chand, external_connectivity_watcher* w) { GPR_ASSERT(!lookup_external_connectivity_watcher(chand, w->on_complete)); gpr_mu_lock(&w->chand->external_connectivity_watcher_list_mu); @@ -1587,7 +1589,7 @@ static void external_connectivity_watcher_list_append( } static void external_connectivity_watcher_list_remove( - channel_data *chand, external_connectivity_watcher *too_remove) { + channel_data* chand, external_connectivity_watcher* too_remove) { GPR_ASSERT( lookup_external_connectivity_watcher(chand, too_remove->on_complete)); gpr_mu_lock(&chand->external_connectivity_watcher_list_mu); @@ -1596,9 +1598,9 @@ static void external_connectivity_watcher_list_remove( gpr_mu_unlock(&chand->external_connectivity_watcher_list_mu); return; } - external_connectivity_watcher *w = + external_connectivity_watcher* w = chand->external_connectivity_watcher_list_head; - while (w != NULL) { + while (w != nullptr) { if (w->next == too_remove) { w->next = w->next->next; gpr_mu_unlock(&chand->external_connectivity_watcher_list_mu); @@ -1610,14 +1612,14 @@ static void external_connectivity_watcher_list_remove( } int grpc_client_channel_num_external_connectivity_watchers( - grpc_channel_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; + grpc_channel_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; int count = 0; gpr_mu_lock(&chand->external_connectivity_watcher_list_mu); - external_connectivity_watcher *w = + external_connectivity_watcher* w = chand->external_connectivity_watcher_list_head; - while (w != NULL) { + while (w != nullptr) { count++; w = w->next; } @@ -1626,10 +1628,10 @@ int grpc_client_channel_num_external_connectivity_watchers( return count; } -static void on_external_watch_complete_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - external_connectivity_watcher *w = (external_connectivity_watcher *)arg; - grpc_closure *follow_up = w->on_complete; +static void on_external_watch_complete_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + external_connectivity_watcher* w = (external_connectivity_watcher*)arg; + grpc_closure* follow_up = w->on_complete; grpc_polling_entity_del_from_pollset_set(exec_ctx, &w->pollent, w->chand->interested_parties); GRPC_CHANNEL_STACK_UNREF(exec_ctx, w->chand->owning_stack, @@ -1639,11 +1641,11 @@ static void on_external_watch_complete_locked(grpc_exec_ctx *exec_ctx, GRPC_CLOSURE_RUN(exec_ctx, follow_up, GRPC_ERROR_REF(error)); } -static void watch_connectivity_state_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error_ignored) { - external_connectivity_watcher *w = (external_connectivity_watcher *)arg; - external_connectivity_watcher *found = NULL; - if (w->state != NULL) { +static void watch_connectivity_state_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error_ignored) { + external_connectivity_watcher* w = (external_connectivity_watcher*)arg; + external_connectivity_watcher* found = nullptr; + if (w->state != nullptr) { external_connectivity_watcher_list_append(w->chand, w); GRPC_CLOSURE_RUN(exec_ctx, w->watcher_timer_init, GRPC_ERROR_NONE); GRPC_CLOSURE_INIT(&w->my_closure, on_external_watch_complete_locked, w, @@ -1651,12 +1653,12 @@ static void watch_connectivity_state_locked(grpc_exec_ctx *exec_ctx, void *arg, grpc_connectivity_state_notify_on_state_change( exec_ctx, &w->chand->state_tracker, w->state, &w->my_closure); } else { - GPR_ASSERT(w->watcher_timer_init == NULL); + GPR_ASSERT(w->watcher_timer_init == nullptr); found = lookup_external_connectivity_watcher(w->chand, w->on_complete); if (found) { GPR_ASSERT(found->on_complete == w->on_complete); grpc_connectivity_state_notify_on_state_change( - exec_ctx, &found->chand->state_tracker, NULL, &found->my_closure); + exec_ctx, &found->chand->state_tracker, nullptr, &found->my_closure); } grpc_polling_entity_del_from_pollset_set(exec_ctx, &w->pollent, w->chand->interested_parties); @@ -1667,12 +1669,12 @@ static void watch_connectivity_state_locked(grpc_exec_ctx *exec_ctx, void *arg, } void grpc_client_channel_watch_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, - grpc_polling_entity pollent, grpc_connectivity_state *state, - grpc_closure *closure, grpc_closure *watcher_timer_init) { - channel_data *chand = (channel_data *)elem->channel_data; - external_connectivity_watcher *w = - (external_connectivity_watcher *)gpr_zalloc(sizeof(*w)); + grpc_exec_ctx* exec_ctx, grpc_channel_element* elem, + grpc_polling_entity pollent, grpc_connectivity_state* state, + grpc_closure* closure, grpc_closure* watcher_timer_init) { + channel_data* chand = (channel_data*)elem->channel_data; + external_connectivity_watcher* w = + (external_connectivity_watcher*)gpr_zalloc(sizeof(*w)); w->chand = chand; w->pollent = pollent; w->on_complete = closure; diff --git a/src/core/ext/filters/client_channel/client_channel.h b/src/core/ext/filters/client_channel/client_channel.h index 152fe2365a..f58a8c1424 100644 --- a/src/core/ext/filters/client_channel/client_channel.h +++ b/src/core/ext/filters/client_channel/client_channel.h @@ -23,7 +23,7 @@ #include "src/core/ext/filters/client_channel/resolver.h" #include "src/core/lib/channel/channel_stack.h" -extern grpc_tracer_flag grpc_client_channel_trace; +extern grpc_core::TraceFlag grpc_client_channel_trace; // Channel arg key for server URI string. #define GRPC_ARG_SERVER_URI "grpc.server_uri" @@ -42,19 +42,19 @@ extern "C" { extern const grpc_channel_filter grpc_client_channel_filter; grpc_connectivity_state grpc_client_channel_check_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect); + grpc_exec_ctx* exec_ctx, grpc_channel_element* elem, int try_to_connect); int grpc_client_channel_num_external_connectivity_watchers( - grpc_channel_element *elem); + grpc_channel_element* elem); void grpc_client_channel_watch_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, - grpc_polling_entity pollent, grpc_connectivity_state *state, - grpc_closure *on_complete, grpc_closure *watcher_timer_init); + grpc_exec_ctx* exec_ctx, grpc_channel_element* elem, + grpc_polling_entity pollent, grpc_connectivity_state* state, + grpc_closure* on_complete, grpc_closure* watcher_timer_init); /* Debug helper: pull the subchannel call from a call stack element */ -grpc_subchannel_call *grpc_client_channel_get_subchannel_call( - grpc_call_element *elem); +grpc_subchannel_call* grpc_client_channel_get_subchannel_call( + grpc_call_element* elem); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/client_channel_factory.h b/src/core/ext/filters/client_channel/client_channel_factory.h index 4273c90058..db8645cd00 100644 --- a/src/core/ext/filters/client_channel/client_channel_factory.h +++ b/src/core/ext/filters/client_channel/client_channel_factory.h @@ -44,39 +44,39 @@ typedef enum { /** Constructor for new configured channels. Creating decorators around this type is encouraged to adapt behavior. */ struct grpc_client_channel_factory { - const grpc_client_channel_factory_vtable *vtable; + const grpc_client_channel_factory_vtable* vtable; }; struct grpc_client_channel_factory_vtable { - void (*ref)(grpc_client_channel_factory *factory); - void (*unref)(grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory); - grpc_subchannel *(*create_subchannel)(grpc_exec_ctx *exec_ctx, - grpc_client_channel_factory *factory, - const grpc_subchannel_args *args); - grpc_channel *(*create_client_channel)(grpc_exec_ctx *exec_ctx, - grpc_client_channel_factory *factory, - const char *target, + void (*ref)(grpc_client_channel_factory* factory); + void (*unref)(grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* factory); + grpc_subchannel* (*create_subchannel)(grpc_exec_ctx* exec_ctx, + grpc_client_channel_factory* factory, + const grpc_subchannel_args* args); + grpc_channel* (*create_client_channel)(grpc_exec_ctx* exec_ctx, + grpc_client_channel_factory* factory, + const char* target, grpc_client_channel_type type, - const grpc_channel_args *args); + const grpc_channel_args* args); }; -void grpc_client_channel_factory_ref(grpc_client_channel_factory *factory); -void grpc_client_channel_factory_unref(grpc_exec_ctx *exec_ctx, - grpc_client_channel_factory *factory); +void grpc_client_channel_factory_ref(grpc_client_channel_factory* factory); +void grpc_client_channel_factory_unref(grpc_exec_ctx* exec_ctx, + grpc_client_channel_factory* factory); /** Create a new grpc_subchannel */ -grpc_subchannel *grpc_client_channel_factory_create_subchannel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory, - const grpc_subchannel_args *args); +grpc_subchannel* grpc_client_channel_factory_create_subchannel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* factory, + const grpc_subchannel_args* args); /** Create a new grpc_channel */ -grpc_channel *grpc_client_channel_factory_create_channel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *factory, - const char *target, grpc_client_channel_type type, - const grpc_channel_args *args); +grpc_channel* grpc_client_channel_factory_create_channel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* factory, + const char* target, grpc_client_channel_type type, + const grpc_channel_args* args); grpc_arg grpc_client_channel_factory_create_channel_arg( - grpc_client_channel_factory *factory); + grpc_client_channel_factory* factory); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/client_channel_plugin.cc b/src/core/ext/filters/client_channel/client_channel_plugin.cc index 4431d11519..c1b57d0ada 100644 --- a/src/core/ext/filters/client_channel/client_channel_plugin.cc +++ b/src/core/ext/filters/client_channel/client_channel_plugin.cc @@ -34,16 +34,16 @@ #include "src/core/ext/filters/client_channel/subchannel_index.h" #include "src/core/lib/surface/channel_init.h" -static bool append_filter(grpc_exec_ctx *exec_ctx, - grpc_channel_stack_builder *builder, void *arg) { +static bool append_filter(grpc_exec_ctx* exec_ctx, + grpc_channel_stack_builder* builder, void* arg) { return grpc_channel_stack_builder_append_filter( - builder, (const grpc_channel_filter *)arg, NULL, NULL); + builder, (const grpc_channel_filter*)arg, nullptr, nullptr); } -static bool set_default_host_if_unset(grpc_exec_ctx *exec_ctx, - grpc_channel_stack_builder *builder, - void *unused) { - const grpc_channel_args *args = +static bool set_default_host_if_unset(grpc_exec_ctx* exec_ctx, + grpc_channel_stack_builder* builder, + void* unused) { + const grpc_channel_args* args = grpc_channel_stack_builder_get_channel_arguments(builder); for (size_t i = 0; i < args->num_args; i++) { if (0 == strcmp(args->args[i].key, GRPC_ARG_DEFAULT_AUTHORITY) || @@ -51,12 +51,12 @@ static bool set_default_host_if_unset(grpc_exec_ctx *exec_ctx, return true; } } - char *default_authority = grpc_get_default_authority( + char* default_authority = grpc_get_default_authority( exec_ctx, grpc_channel_stack_builder_get_target(builder)); - if (default_authority != NULL) { + if (default_authority != nullptr) { grpc_arg arg = grpc_channel_arg_string_create( - (char *)GRPC_ARG_DEFAULT_AUTHORITY, default_authority); - grpc_channel_args *new_args = grpc_channel_args_copy_and_add(args, &arg, 1); + (char*)GRPC_ARG_DEFAULT_AUTHORITY, default_authority); + grpc_channel_args* new_args = grpc_channel_args_copy_and_add(args, &arg, 1); grpc_channel_stack_builder_set_channel_arguments(exec_ctx, builder, new_args); gpr_free(default_authority); @@ -73,15 +73,11 @@ extern "C" void grpc_client_channel_init(void) { grpc_register_http_proxy_mapper(); grpc_subchannel_index_init(); grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MIN, - set_default_host_if_unset, NULL); + set_default_host_if_unset, nullptr); grpc_channel_init_register_stage( GRPC_CLIENT_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, append_filter, - (void *)&grpc_client_channel_filter); + (void*)&grpc_client_channel_filter); grpc_http_connect_register_handshaker_factory(); - grpc_register_tracer(&grpc_client_channel_trace); -#ifndef NDEBUG - grpc_register_tracer(&grpc_trace_resolver_refcount); -#endif } extern "C" void grpc_client_channel_shutdown(void) { diff --git a/src/core/ext/filters/client_channel/connector.h b/src/core/ext/filters/client_channel/connector.h index b71e0aab00..12dc59bcdf 100644 --- a/src/core/ext/filters/client_channel/connector.h +++ b/src/core/ext/filters/client_channel/connector.h @@ -31,48 +31,48 @@ typedef struct grpc_connector grpc_connector; typedef struct grpc_connector_vtable grpc_connector_vtable; struct grpc_connector { - const grpc_connector_vtable *vtable; + const grpc_connector_vtable* vtable; }; typedef struct { /** set of pollsets interested in this connection */ - grpc_pollset_set *interested_parties; + grpc_pollset_set* interested_parties; /** deadline for connection */ grpc_millis deadline; /** channel arguments (to be passed to transport) */ - const grpc_channel_args *channel_args; + const grpc_channel_args* channel_args; } grpc_connect_in_args; typedef struct { /** the connected transport */ - grpc_transport *transport; + grpc_transport* transport; /** channel arguments (to be passed to the filters) */ - grpc_channel_args *channel_args; + grpc_channel_args* channel_args; } grpc_connect_out_args; struct grpc_connector_vtable { - void (*ref)(grpc_connector *connector); - void (*unref)(grpc_exec_ctx *exec_ctx, grpc_connector *connector); + void (*ref)(grpc_connector* connector); + void (*unref)(grpc_exec_ctx* exec_ctx, grpc_connector* connector); /** Implementation of grpc_connector_shutdown */ - void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_connector *connector, - grpc_error *why); + void (*shutdown)(grpc_exec_ctx* exec_ctx, grpc_connector* connector, + grpc_error* why); /** Implementation of grpc_connector_connect */ - void (*connect)(grpc_exec_ctx *exec_ctx, grpc_connector *connector, - const grpc_connect_in_args *in_args, - grpc_connect_out_args *out_args, grpc_closure *notify); + void (*connect)(grpc_exec_ctx* exec_ctx, grpc_connector* connector, + const grpc_connect_in_args* in_args, + grpc_connect_out_args* out_args, grpc_closure* notify); }; -grpc_connector *grpc_connector_ref(grpc_connector *connector); -void grpc_connector_unref(grpc_exec_ctx *exec_ctx, grpc_connector *connector); +grpc_connector* grpc_connector_ref(grpc_connector* connector); +void grpc_connector_unref(grpc_exec_ctx* exec_ctx, grpc_connector* connector); /** Connect using the connector: max one outstanding call at a time */ -void grpc_connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *connector, - const grpc_connect_in_args *in_args, - grpc_connect_out_args *out_args, - grpc_closure *notify); +void grpc_connector_connect(grpc_exec_ctx* exec_ctx, grpc_connector* connector, + const grpc_connect_in_args* in_args, + grpc_connect_out_args* out_args, + grpc_closure* notify); /** Cancel any pending connection */ -void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *connector, - grpc_error *why); +void grpc_connector_shutdown(grpc_exec_ctx* exec_ctx, grpc_connector* connector, + grpc_error* why); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/http_connect_handshaker.cc b/src/core/ext/filters/client_channel/http_connect_handshaker.cc index 418bb41ef6..b7cb2e3eba 100644 --- a/src/core/ext/filters/client_channel/http_connect_handshaker.cc +++ b/src/core/ext/filters/client_channel/http_connect_handshaker.cc @@ -65,10 +65,10 @@ static void http_connect_handshaker_unref(grpc_exec_ctx* exec_ctx, http_connect_handshaker* handshaker) { if (gpr_unref(&handshaker->refcount)) { gpr_mu_destroy(&handshaker->mu); - if (handshaker->endpoint_to_destroy != NULL) { + if (handshaker->endpoint_to_destroy != nullptr) { grpc_endpoint_destroy(exec_ctx, handshaker->endpoint_to_destroy); } - if (handshaker->read_buffer_to_destroy != NULL) { + if (handshaker->read_buffer_to_destroy != nullptr) { grpc_slice_buffer_destroy_internal(exec_ctx, handshaker->read_buffer_to_destroy); gpr_free(handshaker->read_buffer_to_destroy); @@ -85,11 +85,11 @@ static void http_connect_handshaker_unref(grpc_exec_ctx* exec_ctx, static void cleanup_args_for_failure_locked( grpc_exec_ctx* exec_ctx, http_connect_handshaker* handshaker) { handshaker->endpoint_to_destroy = handshaker->args->endpoint; - handshaker->args->endpoint = NULL; + handshaker->args->endpoint = nullptr; handshaker->read_buffer_to_destroy = handshaker->args->read_buffer; - handshaker->args->read_buffer = NULL; + handshaker->args->read_buffer = nullptr; grpc_channel_args_destroy(exec_ctx, handshaker->args->args); - handshaker->args->args = NULL; + handshaker->args->args = nullptr; } // If the handshake failed or we're shutting down, clean up and invoke the @@ -260,7 +260,7 @@ static void http_connect_handshaker_do_handshake( // If not found, invoke on_handshake_done without doing anything. const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_HTTP_CONNECT_SERVER); - if (arg == NULL) { + if (arg == nullptr) { // Set shutdown to true so that subsequent calls to // http_connect_handshaker_shutdown() do nothing. gpr_mu_lock(&handshaker->mu); @@ -273,11 +273,11 @@ static void http_connect_handshaker_do_handshake( char* server_name = arg->value.string; // Get headers from channel args. arg = grpc_channel_args_find(args->args, GRPC_ARG_HTTP_CONNECT_HEADERS); - grpc_http_header* headers = NULL; + grpc_http_header* headers = nullptr; size_t num_headers = 0; - char** header_strings = NULL; + char** header_strings = nullptr; size_t num_header_strings = 0; - if (arg != NULL) { + if (arg != nullptr) { GPR_ASSERT(arg->type == GRPC_ARG_STRING); gpr_string_split(arg->value.string, "\n", &header_strings, &num_header_strings); @@ -285,7 +285,7 @@ static void http_connect_handshaker_do_handshake( num_header_strings); for (size_t i = 0; i < num_header_strings; ++i) { char* sep = strchr(header_strings[i], ':'); - if (sep == NULL) { + if (sep == nullptr) { gpr_log(GPR_ERROR, "skipping unparseable HTTP CONNECT header: %s", header_strings[i]); continue; diff --git a/src/core/ext/filters/client_channel/http_proxy.cc b/src/core/ext/filters/client_channel/http_proxy.cc index a16b44d3dc..405d8c0e55 100644 --- a/src/core/ext/filters/client_channel/http_proxy.cc +++ b/src/core/ext/filters/client_channel/http_proxy.cc @@ -41,15 +41,15 @@ * responsibility to gpr_free user_cred. */ static char* get_http_proxy_server(grpc_exec_ctx* exec_ctx, char** user_cred) { - GPR_ASSERT(user_cred != NULL); - char* proxy_name = NULL; + GPR_ASSERT(user_cred != nullptr); + char* proxy_name = nullptr; char* uri_str = gpr_getenv("http_proxy"); - char** authority_strs = NULL; + char** authority_strs = nullptr; size_t authority_nstrs; - if (uri_str == NULL) return NULL; + if (uri_str == nullptr) return nullptr; grpc_uri* uri = grpc_uri_parse(exec_ctx, uri_str, false /* suppress_errors */); - if (uri == NULL || uri->authority == NULL) { + if (uri == nullptr || uri->authority == nullptr) { gpr_log(GPR_ERROR, "cannot parse value of 'http_proxy' env var"); goto done; } @@ -73,7 +73,7 @@ static char* get_http_proxy_server(grpc_exec_ctx* exec_ctx, char** user_cred) { for (size_t i = 0; i < authority_nstrs; i++) { gpr_free(authority_strs[i]); } - proxy_name = NULL; + proxy_name = nullptr; } gpr_free(authority_strs); done: @@ -88,13 +88,13 @@ static bool proxy_mapper_map_name(grpc_exec_ctx* exec_ctx, const grpc_channel_args* args, char** name_to_resolve, grpc_channel_args** new_args) { - char* user_cred = NULL; + char* user_cred = nullptr; *name_to_resolve = get_http_proxy_server(exec_ctx, &user_cred); - if (*name_to_resolve == NULL) return false; - char* no_proxy_str = NULL; + if (*name_to_resolve == nullptr) return false; + char* no_proxy_str = nullptr; grpc_uri* uri = grpc_uri_parse(exec_ctx, server_uri, false /* suppress_errors */); - if (uri == NULL || uri->path[0] == '\0') { + if (uri == nullptr || uri->path[0] == '\0') { gpr_log(GPR_ERROR, "'http_proxy' environment variable set, but cannot " "parse server URI '%s' -- not using proxy", @@ -107,7 +107,7 @@ static bool proxy_mapper_map_name(grpc_exec_ctx* exec_ctx, goto no_use_proxy; } no_proxy_str = gpr_getenv("no_proxy"); - if (no_proxy_str != NULL) { + if (no_proxy_str != nullptr) { static const char* NO_PROXY_SEPARATOR = ","; bool use_proxy = true; char* server_host; @@ -149,7 +149,7 @@ static bool proxy_mapper_map_name(grpc_exec_ctx* exec_ctx, args_to_add[0] = grpc_channel_arg_string_create( (char*)GRPC_ARG_HTTP_CONNECT_SERVER, uri->path[0] == '/' ? uri->path + 1 : uri->path); - if (user_cred != NULL) { + if (user_cred != nullptr) { /* Use base64 encoding for user credentials as stated in RFC 7617 */ char* encoded_user_cred = grpc_base64_encode(user_cred, strlen(user_cred), 0, 0); @@ -167,9 +167,9 @@ static bool proxy_mapper_map_name(grpc_exec_ctx* exec_ctx, gpr_free(user_cred); return true; no_use_proxy: - if (uri != NULL) grpc_uri_destroy(uri); + if (uri != nullptr) grpc_uri_destroy(uri); gpr_free(*name_to_resolve); - *name_to_resolve = NULL; + *name_to_resolve = nullptr; gpr_free(user_cred); return false; } diff --git a/src/core/ext/filters/client_channel/lb_policy.cc b/src/core/ext/filters/client_channel/lb_policy.cc index 8e6673d737..6276c3e952 100644 --- a/src/core/ext/filters/client_channel/lb_policy.cc +++ b/src/core/ext/filters/client_channel/lb_policy.cc @@ -21,14 +21,12 @@ #define WEAK_REF_BITS 16 -#ifndef NDEBUG -grpc_tracer_flag grpc_trace_lb_policy_refcount = - GRPC_TRACER_INITIALIZER(false, "lb_policy_refcount"); -#endif +grpc_core::DebugOnlyTraceFlag grpc_trace_lb_policy_refcount( + false, "lb_policy_refcount"); -void grpc_lb_policy_init(grpc_lb_policy *policy, - const grpc_lb_policy_vtable *vtable, - grpc_combiner *combiner) { +void grpc_lb_policy_init(grpc_lb_policy* policy, + const grpc_lb_policy_vtable* vtable, + grpc_combiner* combiner) { policy->vtable = vtable; gpr_atm_no_barrier_store(&policy->ref_pair, 1 << WEAK_REF_BITS); policy->interested_parties = grpc_pollset_set_create(); @@ -37,7 +35,7 @@ void grpc_lb_policy_init(grpc_lb_policy *policy, #ifndef NDEBUG #define REF_FUNC_EXTRA_ARGS , const char *file, int line, const char *reason -#define REF_MUTATE_EXTRA_ARGS REF_FUNC_EXTRA_ARGS, const char *purpose +#define REF_MUTATE_EXTRA_ARGS REF_FUNC_EXTRA_ARGS, const char* purpose #define REF_FUNC_PASS_ARGS(new_reason) , file, line, new_reason #define REF_MUTATE_PASS_ARGS(purpose) , file, line, reason, purpose #else @@ -47,12 +45,12 @@ void grpc_lb_policy_init(grpc_lb_policy *policy, #define REF_MUTATE_PASS_ARGS(x) #endif -static gpr_atm ref_mutate(grpc_lb_policy *c, gpr_atm delta, +static gpr_atm ref_mutate(grpc_lb_policy* c, gpr_atm delta, int barrier REF_MUTATE_EXTRA_ARGS) { gpr_atm old_val = barrier ? gpr_atm_full_fetch_add(&c->ref_pair, delta) : gpr_atm_no_barrier_fetch_add(&c->ref_pair, delta); #ifndef NDEBUG - if (GRPC_TRACER_ON(grpc_trace_lb_policy_refcount)) { + if (grpc_trace_lb_policy_refcount.enabled()) { gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "LB_POLICY: %p %12s 0x%" PRIxPTR " -> 0x%" PRIxPTR " [%s]", c, purpose, old_val, old_val + delta, reason); @@ -61,104 +59,105 @@ static gpr_atm ref_mutate(grpc_lb_policy *c, gpr_atm delta, return old_val; } -void grpc_lb_policy_ref(grpc_lb_policy *policy REF_FUNC_EXTRA_ARGS) { +void grpc_lb_policy_ref(grpc_lb_policy* policy REF_FUNC_EXTRA_ARGS) { ref_mutate(policy, 1 << WEAK_REF_BITS, 0 REF_MUTATE_PASS_ARGS("STRONG_REF")); } -static void shutdown_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_lb_policy *policy = (grpc_lb_policy *)arg; +static void shutdown_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_lb_policy* policy = (grpc_lb_policy*)arg; policy->vtable->shutdown_locked(exec_ctx, policy); GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, policy, "strong-unref"); } -void grpc_lb_policy_unref(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy REF_FUNC_EXTRA_ARGS) { +void grpc_lb_policy_unref(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy REF_FUNC_EXTRA_ARGS) { gpr_atm old_val = ref_mutate(policy, (gpr_atm)1 - (gpr_atm)(1 << WEAK_REF_BITS), 1 REF_MUTATE_PASS_ARGS("STRONG_UNREF")); gpr_atm mask = ~(gpr_atm)((1 << WEAK_REF_BITS) - 1); gpr_atm check = 1 << WEAK_REF_BITS; if ((old_val & mask) == check) { - GRPC_CLOSURE_SCHED(exec_ctx, GRPC_CLOSURE_CREATE( - shutdown_locked, policy, - grpc_combiner_scheduler(policy->combiner)), - GRPC_ERROR_NONE); + GRPC_CLOSURE_SCHED( + exec_ctx, + GRPC_CLOSURE_CREATE(shutdown_locked, policy, + grpc_combiner_scheduler(policy->combiner)), + GRPC_ERROR_NONE); } else { grpc_lb_policy_weak_unref(exec_ctx, policy REF_FUNC_PASS_ARGS("strong-unref")); } } -void grpc_lb_policy_weak_ref(grpc_lb_policy *policy REF_FUNC_EXTRA_ARGS) { +void grpc_lb_policy_weak_ref(grpc_lb_policy* policy REF_FUNC_EXTRA_ARGS) { ref_mutate(policy, 1, 0 REF_MUTATE_PASS_ARGS("WEAK_REF")); } -void grpc_lb_policy_weak_unref(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy REF_FUNC_EXTRA_ARGS) { +void grpc_lb_policy_weak_unref(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy REF_FUNC_EXTRA_ARGS) { gpr_atm old_val = ref_mutate(policy, -(gpr_atm)1, 1 REF_MUTATE_PASS_ARGS("WEAK_UNREF")); if (old_val == 1) { grpc_pollset_set_destroy(exec_ctx, policy->interested_parties); - grpc_combiner *combiner = policy->combiner; + grpc_combiner* combiner = policy->combiner; policy->vtable->destroy(exec_ctx, policy); GRPC_COMBINER_UNREF(exec_ctx, combiner, "lb_policy"); } } -int grpc_lb_policy_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, - void **user_data, grpc_closure *on_complete) { +int grpc_lb_policy_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, + void** user_data, grpc_closure* on_complete) { return policy->vtable->pick_locked(exec_ctx, policy, pick_args, target, context, user_data, on_complete); } -void grpc_lb_policy_cancel_pick_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connected_subchannel **target, - grpc_error *error) { +void grpc_lb_policy_cancel_pick_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + grpc_connected_subchannel** target, + grpc_error* error) { policy->vtable->cancel_pick_locked(exec_ctx, policy, target, error); } -void grpc_lb_policy_cancel_picks_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, +void grpc_lb_policy_cancel_picks_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error) { + grpc_error* error) { policy->vtable->cancel_picks_locked(exec_ctx, policy, initial_metadata_flags_mask, initial_metadata_flags_eq, error); } -void grpc_lb_policy_exit_idle_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy) { +void grpc_lb_policy_exit_idle_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy) { policy->vtable->exit_idle_locked(exec_ctx, policy); } -void grpc_lb_policy_ping_one_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_closure *closure) { +void grpc_lb_policy_ping_one_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + grpc_closure* closure) { policy->vtable->ping_one_locked(exec_ctx, policy, closure); } void grpc_lb_policy_notify_on_state_change_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connectivity_state *state, grpc_closure *closure) { + grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_connectivity_state* state, grpc_closure* closure) { policy->vtable->notify_on_state_change_locked(exec_ctx, policy, state, closure); } grpc_connectivity_state grpc_lb_policy_check_connectivity_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_error **connectivity_error) { + grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_error** connectivity_error) { return policy->vtable->check_connectivity_locked(exec_ctx, policy, connectivity_error); } -void grpc_lb_policy_update_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - const grpc_lb_policy_args *lb_policy_args) { +void grpc_lb_policy_update_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + const grpc_lb_policy_args* lb_policy_args) { policy->vtable->update_locked(exec_ctx, policy, lb_policy_args); } diff --git a/src/core/ext/filters/client_channel/lb_policy.h b/src/core/ext/filters/client_channel/lb_policy.h index 010299c2f4..cd40b4dcf7 100644 --- a/src/core/ext/filters/client_channel/lb_policy.h +++ b/src/core/ext/filters/client_channel/lb_policy.h @@ -33,75 +33,73 @@ typedef struct grpc_lb_policy grpc_lb_policy; typedef struct grpc_lb_policy_vtable grpc_lb_policy_vtable; typedef struct grpc_lb_policy_args grpc_lb_policy_args; -#ifndef NDEBUG -extern grpc_tracer_flag grpc_trace_lb_policy_refcount; -#endif +extern grpc_core::DebugOnlyTraceFlag grpc_trace_lb_policy_refcount; struct grpc_lb_policy { - const grpc_lb_policy_vtable *vtable; + const grpc_lb_policy_vtable* vtable; gpr_atm ref_pair; /* owned pointer to interested parties in load balancing decisions */ - grpc_pollset_set *interested_parties; + grpc_pollset_set* interested_parties; /* combiner under which lb_policy actions take place */ - grpc_combiner *combiner; + grpc_combiner* combiner; }; /** Extra arguments for an LB pick */ typedef struct grpc_lb_policy_pick_args { /** Initial metadata associated with the picking call. */ - grpc_metadata_batch *initial_metadata; + grpc_metadata_batch* initial_metadata; /** Bitmask used for selective cancelling. See \a * grpc_lb_policy_cancel_picks() and \a GRPC_INITIAL_METADATA_* in * grpc_types.h */ uint32_t initial_metadata_flags; /** Storage for LB token in \a initial_metadata, or NULL if not used */ - grpc_linked_mdelem *lb_token_mdelem_storage; + grpc_linked_mdelem* lb_token_mdelem_storage; } grpc_lb_policy_pick_args; struct grpc_lb_policy_vtable { - void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - void (*shutdown_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + void (*destroy)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy); + void (*shutdown_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy); /** \see grpc_lb_policy_pick */ - int (*pick_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, void **user_data, - grpc_closure *on_complete); + int (*pick_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, void** user_data, + grpc_closure* on_complete); /** \see grpc_lb_policy_cancel_pick */ - void (*cancel_pick_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connected_subchannel **target, - grpc_error *error); + void (*cancel_pick_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_connected_subchannel** target, + grpc_error* error); /** \see grpc_lb_policy_cancel_picks */ - void (*cancel_picks_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + void (*cancel_picks_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error); + grpc_error* error); /** \see grpc_lb_policy_ping_one */ - void (*ping_one_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_closure *closure); + void (*ping_one_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_closure* closure); /** Try to enter a READY connectivity state */ - void (*exit_idle_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + void (*exit_idle_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy); /** check the current connectivity of the lb_policy */ grpc_connectivity_state (*check_connectivity_locked)( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_error **connectivity_error); + grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_error** connectivity_error); /** call notify when the connectivity state of a channel changes from *state. Updates *state with the new state of the policy. Calling with a NULL \a state cancels the subscription. */ - void (*notify_on_state_change_locked)(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connectivity_state *state, - grpc_closure *closure); + void (*notify_on_state_change_locked)(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + grpc_connectivity_state* state, + grpc_closure* closure); - void (*update_locked)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_args *args); + void (*update_locked)(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_args* args); }; #ifndef NDEBUG @@ -119,29 +117,29 @@ struct grpc_lb_policy_vtable { grpc_lb_policy_weak_ref((p), __FILE__, __LINE__, (r)) #define GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, p, r) \ grpc_lb_policy_weak_unref((exec_ctx), (p), __FILE__, __LINE__, (r)) -void grpc_lb_policy_ref(grpc_lb_policy *policy, const char *file, int line, - const char *reason); -void grpc_lb_policy_unref(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const char *file, int line, const char *reason); -void grpc_lb_policy_weak_ref(grpc_lb_policy *policy, const char *file, int line, - const char *reason); -void grpc_lb_policy_weak_unref(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const char *file, int line, const char *reason); +void grpc_lb_policy_ref(grpc_lb_policy* policy, const char* file, int line, + const char* reason); +void grpc_lb_policy_unref(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const char* file, int line, const char* reason); +void grpc_lb_policy_weak_ref(grpc_lb_policy* policy, const char* file, int line, + const char* reason); +void grpc_lb_policy_weak_unref(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const char* file, int line, const char* reason); #else #define GRPC_LB_POLICY_REF(p, r) grpc_lb_policy_ref((p)) #define GRPC_LB_POLICY_UNREF(cl, p, r) grpc_lb_policy_unref((cl), (p)) #define GRPC_LB_POLICY_WEAK_REF(p, r) grpc_lb_policy_weak_ref((p)) #define GRPC_LB_POLICY_WEAK_UNREF(cl, p, r) grpc_lb_policy_weak_unref((cl), (p)) -void grpc_lb_policy_ref(grpc_lb_policy *policy); -void grpc_lb_policy_unref(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); -void grpc_lb_policy_weak_ref(grpc_lb_policy *policy); -void grpc_lb_policy_weak_unref(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); +void grpc_lb_policy_ref(grpc_lb_policy* policy); +void grpc_lb_policy_unref(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy); +void grpc_lb_policy_weak_ref(grpc_lb_policy* policy); +void grpc_lb_policy_weak_unref(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy); #endif /** called by concrete implementations to initialize the base struct */ -void grpc_lb_policy_init(grpc_lb_policy *policy, - const grpc_lb_policy_vtable *vtable, - grpc_combiner *combiner); +void grpc_lb_policy_init(grpc_lb_policy* policy, + const grpc_lb_policy_vtable* vtable, + grpc_combiner* combiner); /** Finds an appropriate subchannel for a call, based on \a pick_args. @@ -160,53 +158,53 @@ void grpc_lb_policy_init(grpc_lb_policy *policy, Any IO should be done under the \a interested_parties \a grpc_pollset_set in the \a grpc_lb_policy struct. */ -int grpc_lb_policy_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, - void **user_data, grpc_closure *on_complete); +int grpc_lb_policy_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, + void** user_data, grpc_closure* on_complete); /** Perform a connected subchannel ping (see \a grpc_connected_subchannel_ping) against one of the connected subchannels managed by \a policy. */ -void grpc_lb_policy_ping_one_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_closure *closure); +void grpc_lb_policy_ping_one_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + grpc_closure* closure); /** Cancel picks for \a target. The \a on_complete callback of the pending picks will be invoked with \a *target set to NULL. */ -void grpc_lb_policy_cancel_pick_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connected_subchannel **target, - grpc_error *error); +void grpc_lb_policy_cancel_pick_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + grpc_connected_subchannel** target, + grpc_error* error); /** Cancel all pending picks for which their \a initial_metadata_flags (as given in the call to \a grpc_lb_policy_pick) matches \a initial_metadata_flags_eq when AND'd with \a initial_metadata_flags_mask */ -void grpc_lb_policy_cancel_picks_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, +void grpc_lb_policy_cancel_picks_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error); + grpc_error* error); /** Try to enter a READY connectivity state */ -void grpc_lb_policy_exit_idle_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy); +void grpc_lb_policy_exit_idle_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy); /* Call notify when the connectivity state of a channel changes from \a *state. * Updates \a *state with the new state of the policy */ void grpc_lb_policy_notify_on_state_change_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connectivity_state *state, grpc_closure *closure); + grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_connectivity_state* state, grpc_closure* closure); grpc_connectivity_state grpc_lb_policy_check_connectivity_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_error **connectivity_error); + grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + grpc_error** connectivity_error); /** Update \a policy with \a lb_policy_args. */ -void grpc_lb_policy_update_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - const grpc_lb_policy_args *lb_policy_args); +void grpc_lb_policy_update_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* policy, + const grpc_lb_policy_args* lb_policy_args); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc index 7ad322902b..6d9fadaf30 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc @@ -25,31 +25,31 @@ #include "src/core/lib/iomgr/error.h" #include "src/core/lib/profiling/timers.h" -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { +static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { return GRPC_ERROR_NONE; } -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) {} +static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) {} typedef struct { // Stats object to update. - grpc_grpclb_client_stats *client_stats; + grpc_grpclb_client_stats* client_stats; // State for intercepting send_initial_metadata. grpc_closure on_complete_for_send; - grpc_closure *original_on_complete_for_send; + grpc_closure* original_on_complete_for_send; bool send_initial_metadata_succeeded; // State for intercepting recv_initial_metadata. grpc_closure recv_initial_metadata_ready; - grpc_closure *original_recv_initial_metadata_ready; + grpc_closure* original_recv_initial_metadata_ready; bool recv_initial_metadata_succeeded; } call_data; -static void on_complete_for_send(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - call_data *calld = (call_data *)arg; +static void on_complete_for_send(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + call_data* calld = (call_data*)arg; if (error == GRPC_ERROR_NONE) { calld->send_initial_metadata_succeeded = true; } @@ -57,9 +57,9 @@ static void on_complete_for_send(grpc_exec_ctx *exec_ctx, void *arg, GRPC_ERROR_REF(error)); } -static void recv_initial_metadata_ready(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - call_data *calld = (call_data *)arg; +static void recv_initial_metadata_ready(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + call_data* calld = (call_data*)arg; if (error == GRPC_ERROR_NONE) { calld->recv_initial_metadata_succeeded = true; } @@ -67,25 +67,24 @@ static void recv_initial_metadata_ready(grpc_exec_ctx *exec_ctx, void *arg, GRPC_ERROR_REF(error)); } -static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *calld = (call_data *)elem->call_data; +static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { + call_data* calld = (call_data*)elem->call_data; // Get stats object from context and take a ref. - GPR_ASSERT(args->context != NULL); - GPR_ASSERT(args->context[GRPC_GRPCLB_CLIENT_STATS].value != NULL); + GPR_ASSERT(args->context != nullptr); + GPR_ASSERT(args->context[GRPC_GRPCLB_CLIENT_STATS].value != nullptr); calld->client_stats = grpc_grpclb_client_stats_ref( - (grpc_grpclb_client_stats *)args->context[GRPC_GRPCLB_CLIENT_STATS] - .value); + (grpc_grpclb_client_stats*)args->context[GRPC_GRPCLB_CLIENT_STATS].value); // Record call started. grpc_grpclb_client_stats_add_call_started(calld->client_stats); return GRPC_ERROR_NONE; } -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *calld = (call_data *)elem->call_data; +static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* ignored) { + call_data* calld = (call_data*)elem->call_data; // Record call finished, optionally setting client_failed_to_send and // received. grpc_grpclb_client_stats_add_call_finished( @@ -97,9 +96,9 @@ static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, } static void start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *batch) { - call_data *calld = (call_data *)elem->call_data; + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* batch) { + call_data* calld = (call_data*)elem->call_data; GPR_TIMER_BEGIN("clr_start_transport_stream_op_batch", 0); // Intercept send_initial_metadata. if (batch->send_initial_metadata) { diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.h index c6a0d69c3f..abf613a23b 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.h +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.h @@ -32,4 +32,4 @@ extern const grpc_channel_filter grpc_client_load_reporting_filter; #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_CLIENT_LOAD_REPORTING_FILTER_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc index d6bdc13ba9..5fb502e2dd 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc @@ -126,21 +126,21 @@ #define GRPC_GRPCLB_RECONNECT_JITTER 0.2 #define GRPC_GRPCLB_DEFAULT_FALLBACK_TIMEOUT_MS 10000 -grpc_tracer_flag grpc_lb_glb_trace = GRPC_TRACER_INITIALIZER(false, "glb"); +grpc_core::TraceFlag grpc_lb_glb_trace(false, "glb"); /* add lb_token of selected subchannel (address) to the call's initial * metadata */ -static grpc_error *initial_metadata_add_lb_token( - grpc_exec_ctx *exec_ctx, grpc_metadata_batch *initial_metadata, - grpc_linked_mdelem *lb_token_mdelem_storage, grpc_mdelem lb_token) { - GPR_ASSERT(lb_token_mdelem_storage != NULL); +static grpc_error* initial_metadata_add_lb_token( + grpc_exec_ctx* exec_ctx, grpc_metadata_batch* initial_metadata, + grpc_linked_mdelem* lb_token_mdelem_storage, grpc_mdelem lb_token) { + GPR_ASSERT(lb_token_mdelem_storage != nullptr); GPR_ASSERT(!GRPC_MDISNULL(lb_token)); return grpc_metadata_batch_add_tail(exec_ctx, initial_metadata, lb_token_mdelem_storage, lb_token); } -static void destroy_client_stats(void *arg) { - grpc_grpclb_client_stats_unref((grpc_grpclb_client_stats *)arg); +static void destroy_client_stats(void* arg) { + grpc_grpclb_client_stats_unref((grpc_grpclb_client_stats*)arg); } typedef struct wrapped_rr_closure_arg { @@ -149,75 +149,81 @@ typedef struct wrapped_rr_closure_arg { /* the original closure. Usually a on_complete/notify cb for pick() and ping() * calls against the internal RR instance, respectively. */ - grpc_closure *wrapped_closure; + grpc_closure* wrapped_closure; /* the pick's initial metadata, kept in order to append the LB token for the * pick */ - grpc_metadata_batch *initial_metadata; + grpc_metadata_batch* initial_metadata; /* the picked target, used to determine which LB token to add to the pick's * initial metadata */ - grpc_connected_subchannel **target; + grpc_connected_subchannel** target; /* the context to be populated for the subchannel call */ - grpc_call_context_element *context; + grpc_call_context_element* context; /* Stats for client-side load reporting. Note that this holds a * reference, which must be either passed on via context or unreffed. */ - grpc_grpclb_client_stats *client_stats; + grpc_grpclb_client_stats* client_stats; /* the LB token associated with the pick */ grpc_mdelem lb_token; /* storage for the lb token initial metadata mdelem */ - grpc_linked_mdelem *lb_token_mdelem_storage; + grpc_linked_mdelem* lb_token_mdelem_storage; /* The RR instance related to the closure */ - grpc_lb_policy *rr_policy; + grpc_lb_policy* rr_policy; + + /* The grpclb instance that created the wrapping. This instance is not owned, + * reference counts are untouched. It's used only for logging purposes. */ + grpc_lb_policy* glb_policy; /* heap memory to be freed upon closure execution. */ - void *free_when_done; + void* free_when_done; } wrapped_rr_closure_arg; /* The \a on_complete closure passed as part of the pick requires keeping a * reference to its associated round robin instance. We wrap this closure in * order to unref the round robin instance upon its invocation */ -static void wrapped_rr_closure(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - wrapped_rr_closure_arg *wc_arg = (wrapped_rr_closure_arg *)arg; +static void wrapped_rr_closure(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + wrapped_rr_closure_arg* wc_arg = (wrapped_rr_closure_arg*)arg; - GPR_ASSERT(wc_arg->wrapped_closure != NULL); + GPR_ASSERT(wc_arg->wrapped_closure != nullptr); GRPC_CLOSURE_SCHED(exec_ctx, wc_arg->wrapped_closure, GRPC_ERROR_REF(error)); - if (wc_arg->rr_policy != NULL) { + if (wc_arg->rr_policy != nullptr) { /* if *target is NULL, no pick has been made by the RR policy (eg, all * addresses failed to connect). There won't be any user_data/token * available */ - if (*wc_arg->target != NULL) { + if (*wc_arg->target != nullptr) { if (!GRPC_MDISNULL(wc_arg->lb_token)) { initial_metadata_add_lb_token(exec_ctx, wc_arg->initial_metadata, wc_arg->lb_token_mdelem_storage, GRPC_MDELEM_REF(wc_arg->lb_token)); } else { - gpr_log(GPR_ERROR, - "No LB token for connected subchannel pick %p (from RR " - "instance %p).", - (void *)*wc_arg->target, (void *)wc_arg->rr_policy); + gpr_log( + GPR_ERROR, + "[grpclb %p] No LB token for connected subchannel pick %p (from RR " + "instance %p).", + wc_arg->glb_policy, *wc_arg->target, wc_arg->rr_policy); abort(); } // Pass on client stats via context. Passes ownership of the reference. - GPR_ASSERT(wc_arg->client_stats != NULL); + GPR_ASSERT(wc_arg->client_stats != nullptr); wc_arg->context[GRPC_GRPCLB_CLIENT_STATS].value = wc_arg->client_stats; wc_arg->context[GRPC_GRPCLB_CLIENT_STATS].destroy = destroy_client_stats; } else { grpc_grpclb_client_stats_unref(wc_arg->client_stats); } - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Unreffing RR %p", (void *)wc_arg->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] Unreffing RR %p", wc_arg->glb_policy, + wc_arg->rr_policy); } GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "wrapped_rr_closure"); } - GPR_ASSERT(wc_arg->free_when_done != NULL); + GPR_ASSERT(wc_arg->free_when_done != nullptr); gpr_free(wc_arg->free_when_done); } @@ -230,25 +236,25 @@ static void wrapped_rr_closure(grpc_exec_ctx *exec_ctx, void *arg, * order to correctly unref the RR policy instance upon completion of the pick. * See \a wrapped_rr_closure for details. */ typedef struct pending_pick { - struct pending_pick *next; + struct pending_pick* next; /* original pick()'s arguments */ grpc_lb_policy_pick_args pick_args; /* output argument where to store the pick()ed connected subchannel, or NULL * upon error. */ - grpc_connected_subchannel **target; + grpc_connected_subchannel** target; /* args for wrapped_on_complete */ wrapped_rr_closure_arg wrapped_on_complete_arg; } pending_pick; -static void add_pending_pick(pending_pick **root, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, - grpc_closure *on_complete) { - pending_pick *pp = (pending_pick *)gpr_zalloc(sizeof(*pp)); +static void add_pending_pick(pending_pick** root, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, + grpc_closure* on_complete) { + pending_pick* pp = (pending_pick*)gpr_zalloc(sizeof(*pp)); pp->next = *root; pp->pick_args = *pick_args; pp->target = target; @@ -267,14 +273,14 @@ static void add_pending_pick(pending_pick **root, /* Same as the \a pending_pick struct but for ping operations */ typedef struct pending_ping { - struct pending_ping *next; + struct pending_ping* next; /* args for wrapped_notify */ wrapped_rr_closure_arg wrapped_notify_arg; } pending_ping; -static void add_pending_ping(pending_ping **root, grpc_closure *notify) { - pending_ping *pping = (pending_ping *)gpr_zalloc(sizeof(*pping)); +static void add_pending_ping(pending_ping** root, grpc_closure* notify) { + pending_ping* pping = (pending_ping*)gpr_zalloc(sizeof(*pping)); pping->wrapped_notify_arg.wrapped_closure = notify; pping->wrapped_notify_arg.free_when_done = pping; pping->next = *root; @@ -294,9 +300,9 @@ typedef struct glb_lb_policy { grpc_lb_policy base; /** who the client is trying to communicate with */ - const char *server_name; - grpc_client_channel_factory *cc_factory; - grpc_channel_args *args; + const char* server_name; + grpc_client_channel_factory* cc_factory; + grpc_channel_args* args; /** timeout in milliseconds for the LB call. 0 means no deadline. */ int lb_call_timeout_ms; @@ -306,13 +312,13 @@ typedef struct glb_lb_policy { int lb_fallback_timeout_ms; /** for communicating with the LB server */ - grpc_channel *lb_channel; + grpc_channel* lb_channel; /** response generator to inject address updates into \a lb_channel */ - grpc_fake_resolver_response_generator *response_generator; + grpc_fake_resolver_response_generator* response_generator; /** the RR policy to use of the backend servers returned by the LB server */ - grpc_lb_policy *rr_policy; + grpc_lb_policy* rr_policy; bool started_picking; @@ -324,7 +330,7 @@ typedef struct glb_lb_policy { /** stores the deserialized response from the LB. May be NULL until one such * response has arrived. */ - grpc_grpclb_serverlist *serverlist; + grpc_grpclb_serverlist* serverlist; /** Index into serverlist for next pick. * If the server at this index is a drop, we return a drop. @@ -332,13 +338,13 @@ typedef struct glb_lb_policy { size_t serverlist_index; /** stores the backend addresses from the resolver */ - grpc_lb_addresses *fallback_backend_addresses; + grpc_lb_addresses* fallback_backend_addresses; /** list of picks that are waiting on RR's policy connectivity */ - pending_pick *pending_picks; + pending_pick* pending_picks; /** list of pings that are waiting on RR's policy connectivity */ - pending_ping *pending_pings; + pending_ping* pending_pings; bool shutting_down; @@ -373,7 +379,7 @@ typedef struct glb_lb_policy { /* LB fallback timer callback. */ grpc_closure lb_on_fallback; - grpc_call *lb_call; /* streaming call to the LB server, */ + grpc_call* lb_call; /* streaming call to the LB server, */ grpc_metadata_array lb_initial_metadata_recv; /* initial MD from LB server */ grpc_metadata_array @@ -381,10 +387,10 @@ typedef struct glb_lb_policy { /* what's being sent to the LB server. Note that its value may vary if the LB * server indicates a redirect. */ - grpc_byte_buffer *lb_request_payload; + grpc_byte_buffer* lb_request_payload; /* response the LB server, if any. Processed in lb_on_response_received() */ - grpc_byte_buffer *lb_response_payload; + grpc_byte_buffer* lb_response_payload; /* call status code and details, set in lb_on_server_status_received() */ grpc_status_code lb_call_status; @@ -403,7 +409,7 @@ typedef struct glb_lb_policy { /* Stats for client-side load reporting. Should be unreffed and * recreated whenever lb_call is replaced. */ - grpc_grpclb_client_stats *client_stats; + grpc_grpclb_client_stats* client_stats; /* Interval and timer for next client load report. */ grpc_millis client_stats_report_interval; grpc_timer client_load_report_timer; @@ -413,20 +419,20 @@ typedef struct glb_lb_policy { * completion of sending the load report. */ grpc_closure client_load_report_closure; /* Client load report message payload. */ - grpc_byte_buffer *client_load_report_payload; + grpc_byte_buffer* client_load_report_payload; } glb_lb_policy; /* Keeps track and reacts to changes in connectivity of the RR instance */ struct rr_connectivity_data { grpc_closure on_change; grpc_connectivity_state state; - glb_lb_policy *glb_policy; + glb_lb_policy* glb_policy; }; -static bool is_server_valid(const grpc_grpclb_server *server, size_t idx, +static bool is_server_valid(const grpc_grpclb_server* server, size_t idx, bool log) { if (server->drop) return false; - const grpc_grpclb_ip_address *ip = &server->ip_address; + const grpc_grpclb_ip_address* ip = &server->ip_address; if (server->port >> 16 != 0) { if (log) { gpr_log(GPR_ERROR, @@ -448,17 +454,17 @@ static bool is_server_valid(const grpc_grpclb_server *server, size_t idx, } /* vtable for LB tokens in grpc_lb_addresses. */ -static void *lb_token_copy(void *token) { - return token == NULL - ? NULL - : (void *)GRPC_MDELEM_REF(grpc_mdelem{(uintptr_t)token}).payload; +static void* lb_token_copy(void* token) { + return token == nullptr + ? nullptr + : (void*)GRPC_MDELEM_REF(grpc_mdelem{(uintptr_t)token}).payload; } -static void lb_token_destroy(grpc_exec_ctx *exec_ctx, void *token) { - if (token != NULL) { +static void lb_token_destroy(grpc_exec_ctx* exec_ctx, void* token) { + if (token != nullptr) { GRPC_MDELEM_UNREF(exec_ctx, grpc_mdelem{(uintptr_t)token}); } } -static int lb_token_cmp(void *token1, void *token2) { +static int lb_token_cmp(void* token1, void* token2) { if (token1 > token2) return 1; if (token1 < token2) return -1; return 0; @@ -466,23 +472,23 @@ static int lb_token_cmp(void *token1, void *token2) { static const grpc_lb_user_data_vtable lb_token_vtable = { lb_token_copy, lb_token_destroy, lb_token_cmp}; -static void parse_server(const grpc_grpclb_server *server, - grpc_resolved_address *addr) { +static void parse_server(const grpc_grpclb_server* server, + grpc_resolved_address* addr) { memset(addr, 0, sizeof(*addr)); if (server->drop) return; const uint16_t netorder_port = htons((uint16_t)server->port); /* the addresses are given in binary format (a in(6)_addr struct) in * server->ip_address.bytes. */ - const grpc_grpclb_ip_address *ip = &server->ip_address; + const grpc_grpclb_ip_address* ip = &server->ip_address; if (ip->size == 4) { addr->len = sizeof(struct sockaddr_in); - struct sockaddr_in *addr4 = (struct sockaddr_in *)&addr->addr; + struct sockaddr_in* addr4 = (struct sockaddr_in*)&addr->addr; addr4->sin_family = AF_INET; memcpy(&addr4->sin_addr, ip->bytes, ip->size); addr4->sin_port = netorder_port; } else if (ip->size == 16) { addr->len = sizeof(struct sockaddr_in6); - struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)&addr->addr; + struct sockaddr_in6* addr6 = (struct sockaddr_in6*)&addr->addr; addr6->sin6_family = AF_INET6; memcpy(&addr6->sin6_addr, ip->bytes, ip->size); addr6->sin6_port = netorder_port; @@ -490,15 +496,15 @@ static void parse_server(const grpc_grpclb_server *server, } /* Returns addresses extracted from \a serverlist. */ -static grpc_lb_addresses *process_serverlist_locked( - grpc_exec_ctx *exec_ctx, const grpc_grpclb_serverlist *serverlist) { +static grpc_lb_addresses* process_serverlist_locked( + grpc_exec_ctx* exec_ctx, const grpc_grpclb_serverlist* serverlist) { size_t num_valid = 0; /* first pass: count how many are valid in order to allocate the necessary * memory in a single block */ for (size_t i = 0; i < serverlist->num_servers; ++i) { if (is_server_valid(serverlist->servers[i], i, true)) ++num_valid; } - grpc_lb_addresses *lb_addresses = + grpc_lb_addresses* lb_addresses = grpc_lb_addresses_create(num_valid, &lb_token_vtable); /* second pass: actually populate the addresses and LB tokens (aka user data * to the outside world) to be read by the RR policy during its creation. @@ -507,14 +513,14 @@ static grpc_lb_addresses *process_serverlist_locked( * incurr in an allocation due to the arbitrary number of server */ size_t addr_idx = 0; for (size_t sl_idx = 0; sl_idx < serverlist->num_servers; ++sl_idx) { - const grpc_grpclb_server *server = serverlist->servers[sl_idx]; + const grpc_grpclb_server* server = serverlist->servers[sl_idx]; if (!is_server_valid(serverlist->servers[sl_idx], sl_idx, false)) continue; GPR_ASSERT(addr_idx < num_valid); /* address processing */ grpc_resolved_address addr; parse_server(server, &addr); /* lb token processing */ - void *user_data; + void* user_data; if (server->has_load_balance_token) { const size_t lb_token_max_length = GPR_ARRAY_SIZE(server->load_balance_token); @@ -522,22 +528,22 @@ static grpc_lb_addresses *process_serverlist_locked( strnlen(server->load_balance_token, lb_token_max_length); grpc_slice lb_token_mdstr = grpc_slice_from_copied_buffer( server->load_balance_token, lb_token_length); - user_data = (void *)grpc_mdelem_from_slices(exec_ctx, GRPC_MDSTR_LB_TOKEN, - lb_token_mdstr) + user_data = (void*)grpc_mdelem_from_slices(exec_ctx, GRPC_MDSTR_LB_TOKEN, + lb_token_mdstr) .payload; } else { - char *uri = grpc_sockaddr_to_uri(&addr); + char* uri = grpc_sockaddr_to_uri(&addr); gpr_log(GPR_INFO, "Missing LB token for backend address '%s'. The empty token will " "be used instead", uri); gpr_free(uri); - user_data = (void *)GRPC_MDELEM_LB_TOKEN_EMPTY.payload; + user_data = (void*)GRPC_MDELEM_LB_TOKEN_EMPTY.payload; } grpc_lb_addresses_set_address(lb_addresses, addr_idx, &addr.addr, addr.len, false /* is_balancer */, - NULL /* balancer_name */, user_data); + nullptr /* balancer_name */, user_data); ++addr_idx; } GPR_ASSERT(addr_idx == num_valid); @@ -545,8 +551,8 @@ static grpc_lb_addresses *process_serverlist_locked( } /* Returns the backend addresses extracted from the given addresses */ -static grpc_lb_addresses *extract_backend_addresses_locked( - grpc_exec_ctx *exec_ctx, const grpc_lb_addresses *addresses) { +static grpc_lb_addresses* extract_backend_addresses_locked( + grpc_exec_ctx* exec_ctx, const grpc_lb_addresses* addresses) { /* first pass: count the number of backend addresses */ size_t num_backends = 0; for (size_t i = 0; i < addresses->num_addresses; ++i) { @@ -555,24 +561,24 @@ static grpc_lb_addresses *extract_backend_addresses_locked( } } /* second pass: actually populate the addresses and (empty) LB tokens */ - grpc_lb_addresses *backend_addresses = + grpc_lb_addresses* backend_addresses = grpc_lb_addresses_create(num_backends, &lb_token_vtable); size_t num_copied = 0; for (size_t i = 0; i < addresses->num_addresses; ++i) { if (addresses->addresses[i].is_balancer) continue; - const grpc_resolved_address *addr = &addresses->addresses[i].address; + const grpc_resolved_address* addr = &addresses->addresses[i].address; grpc_lb_addresses_set_address(backend_addresses, num_copied, &addr->addr, addr->len, false /* is_balancer */, - NULL /* balancer_name */, - (void *)GRPC_MDELEM_LB_TOKEN_EMPTY.payload); + nullptr /* balancer_name */, + (void*)GRPC_MDELEM_LB_TOKEN_EMPTY.payload); ++num_copied; } return backend_addresses; } static void update_lb_connectivity_status_locked( - grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, - grpc_connectivity_state rr_state, grpc_error *rr_state_error) { + grpc_exec_ctx* exec_ctx, glb_lb_policy* glb_policy, + grpc_connectivity_state rr_state, grpc_error* rr_state_error) { const grpc_connectivity_state curr_glb_state = grpc_connectivity_state_check(&glb_policy->state_tracker); @@ -611,17 +617,18 @@ static void update_lb_connectivity_status_locked( case GRPC_CHANNEL_SHUTDOWN: GPR_ASSERT(rr_state_error != GRPC_ERROR_NONE); break; - case GRPC_CHANNEL_INIT: case GRPC_CHANNEL_IDLE: case GRPC_CHANNEL_CONNECTING: case GRPC_CHANNEL_READY: GPR_ASSERT(rr_state_error == GRPC_ERROR_NONE); } - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + if (grpc_lb_glb_trace.enabled()) { gpr_log( - GPR_INFO, "Setting grpclb's state to %s from new RR policy %p state.", - grpc_connectivity_state_name(rr_state), (void *)glb_policy->rr_policy); + GPR_INFO, + "[grpclb %p] Setting grpclb's state to %s from new RR policy %p state.", + glb_policy, grpc_connectivity_state_name(rr_state), + glb_policy->rr_policy); } grpc_connectivity_state_set(exec_ctx, &glb_policy->state_tracker, rr_state, rr_state_error, @@ -634,22 +641,22 @@ static void update_lb_connectivity_status_locked( * If \a force_async is true, then we will manually schedule the * completion callback even if the pick is available immediately. */ static bool pick_from_internal_rr_locked( - grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, - const grpc_lb_policy_pick_args *pick_args, bool force_async, - grpc_connected_subchannel **target, wrapped_rr_closure_arg *wc_arg) { + grpc_exec_ctx* exec_ctx, glb_lb_policy* glb_policy, + const grpc_lb_policy_pick_args* pick_args, bool force_async, + grpc_connected_subchannel** target, wrapped_rr_closure_arg* wc_arg) { // Check for drops if we are not using fallback backend addresses. - if (glb_policy->serverlist != NULL) { + if (glb_policy->serverlist != nullptr) { // Look at the index into the serverlist to see if we should drop this call. - grpc_grpclb_server *server = + grpc_grpclb_server* server = glb_policy->serverlist->servers[glb_policy->serverlist_index++]; if (glb_policy->serverlist_index == glb_policy->serverlist->num_servers) { glb_policy->serverlist_index = 0; // Wrap-around. } if (server->drop) { // Not using the RR policy, so unref it. - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Unreffing RR for drop (0x%" PRIxPTR ")", - (intptr_t)wc_arg->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] Unreffing RR %p for drop", glb_policy, + wc_arg->rr_policy); } GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "glb_pick_sync"); // Update client load reporting stats to indicate the number of @@ -657,11 +664,12 @@ static bool pick_from_internal_rr_locked( // the client_load_reporting filter, because we do not create a // subchannel call (and therefore no client_load_reporting filter) // for dropped calls. + GPR_ASSERT(wc_arg->client_stats != nullptr); grpc_grpclb_client_stats_add_call_dropped_locked( server->load_balance_token, wc_arg->client_stats); grpc_grpclb_client_stats_unref(wc_arg->client_stats); if (force_async) { - GPR_ASSERT(wc_arg->wrapped_closure != NULL); + GPR_ASSERT(wc_arg->wrapped_closure != nullptr); GRPC_CLOSURE_SCHED(exec_ctx, wc_arg->wrapped_closure, GRPC_ERROR_NONE); gpr_free(wc_arg->free_when_done); return false; @@ -673,12 +681,12 @@ static bool pick_from_internal_rr_locked( // Pick via the RR policy. const bool pick_done = grpc_lb_policy_pick_locked( exec_ctx, wc_arg->rr_policy, pick_args, target, wc_arg->context, - (void **)&wc_arg->lb_token, &wc_arg->wrapper_closure); + (void**)&wc_arg->lb_token, &wc_arg->wrapper_closure); if (pick_done) { /* synchronous grpc_lb_policy_pick call. Unref the RR policy. */ - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Unreffing RR (0x%" PRIxPTR ")", - (intptr_t)wc_arg->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] Unreffing RR %p", glb_policy, + wc_arg->rr_policy); } GRPC_LB_POLICY_UNREF(exec_ctx, wc_arg->rr_policy, "glb_pick_sync"); /* add the load reporting initial metadata */ @@ -686,11 +694,11 @@ static bool pick_from_internal_rr_locked( pick_args->lb_token_mdelem_storage, GRPC_MDELEM_REF(wc_arg->lb_token)); // Pass on client stats via context. Passes ownership of the reference. - GPR_ASSERT(wc_arg->client_stats != NULL); + GPR_ASSERT(wc_arg->client_stats != nullptr); wc_arg->context[GRPC_GRPCLB_CLIENT_STATS].value = wc_arg->client_stats; wc_arg->context[GRPC_GRPCLB_CLIENT_STATS].destroy = destroy_client_stats; if (force_async) { - GPR_ASSERT(wc_arg->wrapped_closure != NULL); + GPR_ASSERT(wc_arg->wrapped_closure != nullptr); GRPC_CLOSURE_SCHED(exec_ctx, wc_arg->wrapped_closure, GRPC_ERROR_NONE); gpr_free(wc_arg->free_when_done); return false; @@ -704,10 +712,10 @@ static bool pick_from_internal_rr_locked( return pick_done; } -static grpc_lb_policy_args *lb_policy_args_create(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { - grpc_lb_addresses *addresses; - if (glb_policy->serverlist != NULL) { +static grpc_lb_policy_args* lb_policy_args_create(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { + grpc_lb_addresses* addresses; + if (glb_policy->serverlist != nullptr) { GPR_ASSERT(glb_policy->serverlist->num_servers > 0); addresses = process_serverlist_locked(exec_ctx, glb_policy->serverlist); } else { @@ -715,16 +723,16 @@ static grpc_lb_policy_args *lb_policy_args_create(grpc_exec_ctx *exec_ctx, // serverlist from the balancer, we use the fallback backends returned by // the resolver. Note that the fallback backend list may be empty, in which // case the new round_robin policy will keep the requested picks pending. - GPR_ASSERT(glb_policy->fallback_backend_addresses != NULL); + GPR_ASSERT(glb_policy->fallback_backend_addresses != nullptr); addresses = grpc_lb_addresses_copy(glb_policy->fallback_backend_addresses); } - GPR_ASSERT(addresses != NULL); - grpc_lb_policy_args *args = (grpc_lb_policy_args *)gpr_zalloc(sizeof(*args)); + GPR_ASSERT(addresses != nullptr); + grpc_lb_policy_args* args = (grpc_lb_policy_args*)gpr_zalloc(sizeof(*args)); args->client_channel_factory = glb_policy->cc_factory; args->combiner = glb_policy->base.combiner; // Replace the LB addresses in the channel args that we pass down to // the subchannel. - static const char *keys_to_remove[] = {GRPC_ARG_LB_ADDRESSES}; + static const char* keys_to_remove[] = {GRPC_ARG_LB_ADDRESSES}; const grpc_arg arg = grpc_lb_addresses_create_channel_arg(addresses); args->args = grpc_channel_args_copy_and_add_and_remove( glb_policy->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &arg, @@ -733,32 +741,33 @@ static grpc_lb_policy_args *lb_policy_args_create(grpc_exec_ctx *exec_ctx, return args; } -static void lb_policy_args_destroy(grpc_exec_ctx *exec_ctx, - grpc_lb_policy_args *args) { +static void lb_policy_args_destroy(grpc_exec_ctx* exec_ctx, + grpc_lb_policy_args* args) { grpc_channel_args_destroy(exec_ctx, args->args); gpr_free(args); } -static void glb_rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error); -static void create_rr_locked(grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, - grpc_lb_policy_args *args) { - GPR_ASSERT(glb_policy->rr_policy == NULL); +static void glb_rr_connectivity_changed_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error); +static void create_rr_locked(grpc_exec_ctx* exec_ctx, glb_lb_policy* glb_policy, + grpc_lb_policy_args* args) { + GPR_ASSERT(glb_policy->rr_policy == nullptr); - grpc_lb_policy *new_rr_policy = + grpc_lb_policy* new_rr_policy = grpc_lb_policy_create(exec_ctx, "round_robin", args); - if (new_rr_policy == NULL) { + if (new_rr_policy == nullptr) { gpr_log(GPR_ERROR, - "Failure creating a RoundRobin policy for serverlist update with " - "%lu entries. The previous RR instance (%p), if any, will continue " - "to be used. Future updates from the LB will attempt to create new " + "[grpclb %p] Failure creating a RoundRobin policy for serverlist " + "update with %" PRIuPTR + " entries. The previous RR instance (%p), if any, will continue to " + "be used. Future updates from the LB will attempt to create new " "instances.", - (unsigned long)glb_policy->serverlist->num_servers, - (void *)glb_policy->rr_policy); + glb_policy, glb_policy->serverlist->num_servers, + glb_policy->rr_policy); return; } glb_policy->rr_policy = new_rr_policy; - grpc_error *rr_state_error = NULL; + grpc_error* rr_state_error = nullptr; const grpc_connectivity_state rr_state = grpc_lb_policy_check_connectivity_locked(exec_ctx, glb_policy->rr_policy, &rr_state_error); @@ -774,8 +783,8 @@ static void create_rr_locked(grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, /* Allocate the data for the tracking of the new RR policy's connectivity. * It'll be deallocated in glb_rr_connectivity_changed() */ - rr_connectivity_data *rr_connectivity = - (rr_connectivity_data *)gpr_zalloc(sizeof(rr_connectivity_data)); + rr_connectivity_data* rr_connectivity = + (rr_connectivity_data*)gpr_zalloc(sizeof(rr_connectivity_data)); GRPC_CLOSURE_INIT(&rr_connectivity->on_change, glb_rr_connectivity_changed_locked, rr_connectivity, grpc_combiner_scheduler(glb_policy->base.combiner)); @@ -790,30 +799,31 @@ static void create_rr_locked(grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, grpc_lb_policy_exit_idle_locked(exec_ctx, glb_policy->rr_policy); /* Update picks and pings in wait */ - pending_pick *pp; + pending_pick* pp; while ((pp = glb_policy->pending_picks)) { glb_policy->pending_picks = pp->next; GRPC_LB_POLICY_REF(glb_policy->rr_policy, "rr_handover_pending_pick"); pp->wrapped_on_complete_arg.rr_policy = glb_policy->rr_policy; pp->wrapped_on_complete_arg.client_stats = grpc_grpclb_client_stats_ref(glb_policy->client_stats); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Pending pick about to (async) PICK from %p", - (void *)glb_policy->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, + "[grpclb %p] Pending pick about to (async) PICK from RR %p", + glb_policy, glb_policy->rr_policy); } pick_from_internal_rr_locked(exec_ctx, glb_policy, &pp->pick_args, true /* force_async */, pp->target, &pp->wrapped_on_complete_arg); } - pending_ping *pping; + pending_ping* pping; while ((pping = glb_policy->pending_pings)) { glb_policy->pending_pings = pping->next; GRPC_LB_POLICY_REF(glb_policy->rr_policy, "rr_handover_pending_ping"); pping->wrapped_notify_arg.rr_policy = glb_policy->rr_policy; - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Pending ping about to PING from 0x%" PRIxPTR "", - (intptr_t)glb_policy->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] Pending ping about to PING from RR %p", + glb_policy, glb_policy->rr_policy); } grpc_lb_policy_ping_one_locked(exec_ctx, glb_policy->rr_policy, &pping->wrapped_notify_arg.wrapper_closure); @@ -821,31 +831,31 @@ static void create_rr_locked(grpc_exec_ctx *exec_ctx, glb_lb_policy *glb_policy, } /* glb_policy->rr_policy may be NULL (initial handover) */ -static void rr_handover_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { +static void rr_handover_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { if (glb_policy->shutting_down) return; - grpc_lb_policy_args *args = lb_policy_args_create(exec_ctx, glb_policy); - GPR_ASSERT(args != NULL); - if (glb_policy->rr_policy != NULL) { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_DEBUG, "Updating Round Robin policy (%p)", - (void *)glb_policy->rr_policy); + grpc_lb_policy_args* args = lb_policy_args_create(exec_ctx, glb_policy); + GPR_ASSERT(args != nullptr); + if (glb_policy->rr_policy != nullptr) { + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_DEBUG, "[grpclb %p] Updating RR policy %p", glb_policy, + glb_policy->rr_policy); } grpc_lb_policy_update_locked(exec_ctx, glb_policy->rr_policy, args); } else { create_rr_locked(exec_ctx, glb_policy, args); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_DEBUG, "Created new Round Robin policy (%p)", - (void *)glb_policy->rr_policy); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_DEBUG, "[grpclb %p] Created new RR policy %p", glb_policy, + glb_policy->rr_policy); } } lb_policy_args_destroy(exec_ctx, args); } -static void glb_rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - rr_connectivity_data *rr_connectivity = (rr_connectivity_data *)arg; - glb_lb_policy *glb_policy = rr_connectivity->glb_policy; +static void glb_rr_connectivity_changed_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + rr_connectivity_data* rr_connectivity = (rr_connectivity_data*)arg; + glb_lb_policy* glb_policy = rr_connectivity->glb_policy; if (glb_policy->shutting_down) { GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base, "glb_rr_connectivity_cb"); @@ -858,7 +868,7 @@ static void glb_rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, * sink, policies can't transition back from it. .*/ GRPC_LB_POLICY_UNREF(exec_ctx, glb_policy->rr_policy, "rr_connectivity_shutdown"); - glb_policy->rr_policy = NULL; + glb_policy->rr_policy = nullptr; GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base, "glb_rr_connectivity_cb"); gpr_free(rr_connectivity); @@ -873,22 +883,22 @@ static void glb_rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, &rr_connectivity->on_change); } -static void destroy_balancer_name(grpc_exec_ctx *exec_ctx, - void *balancer_name) { +static void destroy_balancer_name(grpc_exec_ctx* exec_ctx, + void* balancer_name) { gpr_free(balancer_name); } static grpc_slice_hash_table_entry targets_info_entry_create( - const char *address, const char *balancer_name) { + const char* address, const char* balancer_name) { grpc_slice_hash_table_entry entry; entry.key = grpc_slice_from_copied_string(address); entry.value = gpr_strdup(balancer_name); return entry; } -static int balancer_name_cmp_fn(void *a, void *b) { - const char *a_str = (const char *)a; - const char *b_str = (const char *)b; +static int balancer_name_cmp_fn(void* a, void* b) { + const char* a_str = (const char*)a; + const char* b_str = (const char*)b; return strcmp(a_str, b_str); } @@ -900,10 +910,10 @@ static int balancer_name_cmp_fn(void *a, void *b) { * - \a response_generator: in order to propagate updates from the resolver * above the grpclb policy. * - \a args: other args inherited from the grpclb policy. */ -static grpc_channel_args *build_lb_channel_args( - grpc_exec_ctx *exec_ctx, const grpc_lb_addresses *addresses, - grpc_fake_resolver_response_generator *response_generator, - const grpc_channel_args *args) { +static grpc_channel_args* build_lb_channel_args( + grpc_exec_ctx* exec_ctx, const grpc_lb_addresses* addresses, + grpc_fake_resolver_response_generator* response_generator, + const grpc_channel_args* args) { size_t num_grpclb_addrs = 0; for (size_t i = 0; i < addresses->num_addresses; ++i) { if (addresses->addresses[i].is_balancer) ++num_grpclb_addrs; @@ -912,20 +922,20 @@ static grpc_channel_args *build_lb_channel_args( * It's the resolver's responsibility to make sure this policy is only * instantiated and used in that case. Otherwise, something has gone wrong. */ GPR_ASSERT(num_grpclb_addrs > 0); - grpc_lb_addresses *lb_addresses = - grpc_lb_addresses_create(num_grpclb_addrs, NULL); - grpc_slice_hash_table_entry *targets_info_entries = - (grpc_slice_hash_table_entry *)gpr_zalloc(sizeof(*targets_info_entries) * - num_grpclb_addrs); + grpc_lb_addresses* lb_addresses = + grpc_lb_addresses_create(num_grpclb_addrs, nullptr); + grpc_slice_hash_table_entry* targets_info_entries = + (grpc_slice_hash_table_entry*)gpr_zalloc(sizeof(*targets_info_entries) * + num_grpclb_addrs); size_t lb_addresses_idx = 0; for (size_t i = 0; i < addresses->num_addresses; ++i) { if (!addresses->addresses[i].is_balancer) continue; - if (addresses->addresses[i].user_data != NULL) { + if (addresses->addresses[i].user_data != nullptr) { gpr_log(GPR_ERROR, "This LB policy doesn't support user data. It will be ignored"); } - char *addr_str; + char* addr_str; GPR_ASSERT(grpc_sockaddr_to_string( &addr_str, &addresses->addresses[i].address, true) > 0); targets_info_entries[lb_addresses_idx] = targets_info_entry_create( @@ -935,22 +945,22 @@ static grpc_channel_args *build_lb_channel_args( grpc_lb_addresses_set_address( lb_addresses, lb_addresses_idx++, addresses->addresses[i].address.addr, addresses->addresses[i].address.len, false /* is balancer */, - addresses->addresses[i].balancer_name, NULL /* user data */); + addresses->addresses[i].balancer_name, nullptr /* user data */); } GPR_ASSERT(num_grpclb_addrs == lb_addresses_idx); - grpc_slice_hash_table *targets_info = + grpc_slice_hash_table* targets_info = grpc_slice_hash_table_create(num_grpclb_addrs, targets_info_entries, destroy_balancer_name, balancer_name_cmp_fn); gpr_free(targets_info_entries); - grpc_channel_args *lb_channel_args = + grpc_channel_args* lb_channel_args = grpc_lb_policy_grpclb_build_lb_channel_args(exec_ctx, targets_info, response_generator, args); grpc_arg lb_channel_addresses_arg = grpc_lb_addresses_create_channel_arg(lb_addresses); - grpc_channel_args *result = grpc_channel_args_copy_and_add( + grpc_channel_args* result = grpc_channel_args_copy_and_add( lb_channel_args, &lb_channel_addresses_arg, 1); grpc_slice_hash_table_unref(exec_ctx, targets_info); grpc_channel_args_destroy(exec_ctx, lb_channel_args); @@ -958,20 +968,20 @@ static grpc_channel_args *build_lb_channel_args( return result; } -static void glb_destroy(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; - GPR_ASSERT(glb_policy->pending_picks == NULL); - GPR_ASSERT(glb_policy->pending_pings == NULL); - gpr_free((void *)glb_policy->server_name); +static void glb_destroy(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; + GPR_ASSERT(glb_policy->pending_picks == nullptr); + GPR_ASSERT(glb_policy->pending_pings == nullptr); + gpr_free((void*)glb_policy->server_name); grpc_channel_args_destroy(exec_ctx, glb_policy->args); - if (glb_policy->client_stats != NULL) { + if (glb_policy->client_stats != nullptr) { grpc_grpclb_client_stats_unref(glb_policy->client_stats); } grpc_connectivity_state_destroy(exec_ctx, &glb_policy->state_tracker); - if (glb_policy->serverlist != NULL) { + if (glb_policy->serverlist != nullptr) { grpc_grpclb_destroy_serverlist(glb_policy->serverlist); } - if (glb_policy->fallback_backend_addresses != NULL) { + if (glb_policy->fallback_backend_addresses != nullptr) { grpc_lb_addresses_destroy(exec_ctx, glb_policy->fallback_backend_addresses); } grpc_fake_resolver_response_generator_unref(glb_policy->response_generator); @@ -979,21 +989,21 @@ static void glb_destroy(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { gpr_free(glb_policy); } -static void glb_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; +static void glb_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; glb_policy->shutting_down = true; /* We need a copy of the lb_call pointer because we can't cancell the call * while holding glb_policy->mu: lb_on_server_status_received, invoked due to * the cancel, needs to acquire that same lock */ - grpc_call *lb_call = glb_policy->lb_call; + grpc_call* lb_call = glb_policy->lb_call; /* glb_policy->lb_call and this local lb_call must be consistent at this point * because glb_policy->lb_call is only assigned in lb_call_init_locked as part * of query_for_backends_locked, which can only be invoked while * glb_policy->shutting_down is false. */ - if (lb_call != NULL) { - grpc_call_cancel(lb_call, NULL); + if (lb_call != nullptr) { + grpc_call_cancel(lb_call, nullptr); /* lb_on_server_status_received will pick up the cancel and clean up */ } if (glb_policy->retry_timer_active) { @@ -1005,28 +1015,28 @@ static void glb_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { glb_policy->fallback_timer_active = false; } - pending_pick *pp = glb_policy->pending_picks; - glb_policy->pending_picks = NULL; - pending_ping *pping = glb_policy->pending_pings; - glb_policy->pending_pings = NULL; - if (glb_policy->rr_policy != NULL) { + pending_pick* pp = glb_policy->pending_picks; + glb_policy->pending_picks = nullptr; + pending_ping* pping = glb_policy->pending_pings; + glb_policy->pending_pings = nullptr; + if (glb_policy->rr_policy != nullptr) { GRPC_LB_POLICY_UNREF(exec_ctx, glb_policy->rr_policy, "glb_shutdown"); } // We destroy the LB channel here because // glb_lb_channel_on_connectivity_changed_cb needs a valid glb_policy // instance. Destroying the lb channel in glb_destroy would likely result in // a callback invocation without a valid glb_policy arg. - if (glb_policy->lb_channel != NULL) { + if (glb_policy->lb_channel != nullptr) { grpc_channel_destroy(glb_policy->lb_channel); - glb_policy->lb_channel = NULL; + glb_policy->lb_channel = nullptr; } grpc_connectivity_state_set( exec_ctx, &glb_policy->state_tracker, GRPC_CHANNEL_SHUTDOWN, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown"), "glb_shutdown"); - while (pp != NULL) { - pending_pick *next = pp->next; - *pp->target = NULL; + while (pp != nullptr) { + pending_pick* next = pp->next; + *pp->target = nullptr; GRPC_CLOSURE_SCHED( exec_ctx, &pp->wrapped_on_complete_arg.wrapper_closure, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown")); @@ -1034,8 +1044,8 @@ static void glb_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { pp = next; } - while (pping != NULL) { - pending_ping *next = pping->next; + while (pping != nullptr) { + pending_ping* next = pping->next; GRPC_CLOSURE_SCHED( exec_ctx, &pping->wrapped_notify_arg.wrapper_closure, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown")); @@ -1054,16 +1064,16 @@ static void glb_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { // - Otherwise, without an RR instance, picks stay pending at this policy's // level (grpclb), inside the glb_policy->pending_picks list. To cancel these, // we invoke the completion closure and set *target to NULL right here. -static void glb_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_connected_subchannel **target, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; - pending_pick *pp = glb_policy->pending_picks; - glb_policy->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; +static void glb_cancel_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_connected_subchannel** target, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; + pending_pick* pp = glb_policy->pending_picks; + glb_policy->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if (pp->target == target) { - *target = NULL; + *target = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, &pp->wrapped_on_complete_arg.wrapper_closure, GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Pick Cancelled", &error, 1)); @@ -1073,7 +1083,7 @@ static void glb_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, } pp = next; } - if (glb_policy->rr_policy != NULL) { + if (glb_policy->rr_policy != nullptr) { grpc_lb_policy_cancel_pick_locked(exec_ctx, glb_policy->rr_policy, target, GRPC_ERROR_REF(error)); } @@ -1090,16 +1100,16 @@ static void glb_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, // - Otherwise, without an RR instance, picks stay pending at this policy's // level (grpclb), inside the glb_policy->pending_picks list. To cancel these, // we invoke the completion closure and set *target to NULL right here. -static void glb_cancel_picks_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol, +static void glb_cancel_picks_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* pol, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; - pending_pick *pp = glb_policy->pending_picks; - glb_policy->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; + pending_pick* pp = glb_policy->pending_picks; + glb_policy->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if ((pp->pick_args.initial_metadata_flags & initial_metadata_flags_mask) == initial_metadata_flags_eq) { GRPC_CLOSURE_SCHED(exec_ctx, &pp->wrapped_on_complete_arg.wrapper_closure, @@ -1111,7 +1121,7 @@ static void glb_cancel_picks_locked(grpc_exec_ctx *exec_ctx, } pp = next; } - if (glb_policy->rr_policy != NULL) { + if (glb_policy->rr_policy != nullptr) { grpc_lb_policy_cancel_picks_locked( exec_ctx, glb_policy->rr_policy, initial_metadata_flags_mask, initial_metadata_flags_eq, GRPC_ERROR_REF(error)); @@ -1119,15 +1129,15 @@ static void glb_cancel_picks_locked(grpc_exec_ctx *exec_ctx, GRPC_ERROR_UNREF(error); } -static void lb_on_fallback_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); -static void query_for_backends_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy); -static void start_picking_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { +static void lb_on_fallback_timer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); +static void query_for_backends_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy); +static void start_picking_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { /* start a timer to fall back */ if (glb_policy->lb_fallback_timeout_ms > 0 && - glb_policy->serverlist == NULL && !glb_policy->fallback_timer_active) { + glb_policy->serverlist == nullptr && !glb_policy->fallback_timer_active) { grpc_millis deadline = grpc_exec_ctx_now(exec_ctx) + glb_policy->lb_fallback_timeout_ms; GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "grpclb_fallback_timer"); @@ -1144,65 +1154,80 @@ static void start_picking_locked(grpc_exec_ctx *exec_ctx, query_for_backends_locked(exec_ctx, glb_policy); } -static void glb_exit_idle_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; +static void glb_exit_idle_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; if (!glb_policy->started_picking) { start_picking_locked(exec_ctx, glb_policy); } } -static int glb_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, void **user_data, - grpc_closure *on_complete) { - if (pick_args->lb_token_mdelem_storage == NULL) { - *target = NULL; +static int glb_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, void** user_data, + grpc_closure* on_complete) { + if (pick_args->lb_token_mdelem_storage == nullptr) { + *target = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, on_complete, GRPC_ERROR_CREATE_FROM_STATIC_STRING( "No mdelem storage for the LB token. Load reporting " "won't work without it. Failing")); return 0; } - - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; - bool pick_done; - - if (glb_policy->rr_policy != NULL) { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "grpclb %p about to PICK from RR %p", - (void *)glb_policy, (void *)glb_policy->rr_policy); + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; + bool pick_done = false; + if (glb_policy->rr_policy != nullptr) { + const grpc_connectivity_state rr_connectivity_state = + grpc_lb_policy_check_connectivity_locked( + exec_ctx, glb_policy->rr_policy, nullptr); + // The glb_policy->rr_policy may have transitioned to SHUTDOWN but the + // callback registered to capture this event + // (glb_rr_connectivity_changed_locked) may not have been invoked yet. We + // need to make sure we aren't trying to pick from a RR policy instance + // that's in shutdown. + if (rr_connectivity_state == GRPC_CHANNEL_SHUTDOWN) { + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, + "[grpclb %p] NOT picking from from RR %p: RR conn state=%s", + glb_policy, glb_policy->rr_policy, + grpc_connectivity_state_name(rr_connectivity_state)); + } + add_pending_pick(&glb_policy->pending_picks, pick_args, target, context, + on_complete); + pick_done = false; + } else { // RR not in shutdown + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] about to PICK from RR %p", glb_policy, + glb_policy->rr_policy); + } + GRPC_LB_POLICY_REF(glb_policy->rr_policy, "glb_pick"); + wrapped_rr_closure_arg* wc_arg = + (wrapped_rr_closure_arg*)gpr_zalloc(sizeof(wrapped_rr_closure_arg)); + GRPC_CLOSURE_INIT(&wc_arg->wrapper_closure, wrapped_rr_closure, wc_arg, + grpc_schedule_on_exec_ctx); + wc_arg->rr_policy = glb_policy->rr_policy; + wc_arg->target = target; + wc_arg->context = context; + GPR_ASSERT(glb_policy->client_stats != nullptr); + wc_arg->client_stats = + grpc_grpclb_client_stats_ref(glb_policy->client_stats); + wc_arg->wrapped_closure = on_complete; + wc_arg->lb_token_mdelem_storage = pick_args->lb_token_mdelem_storage; + wc_arg->initial_metadata = pick_args->initial_metadata; + wc_arg->free_when_done = wc_arg; + wc_arg->glb_policy = pol; + pick_done = + pick_from_internal_rr_locked(exec_ctx, glb_policy, pick_args, + false /* force_async */, target, wc_arg); } - GRPC_LB_POLICY_REF(glb_policy->rr_policy, "glb_pick"); - - wrapped_rr_closure_arg *wc_arg = - (wrapped_rr_closure_arg *)gpr_zalloc(sizeof(wrapped_rr_closure_arg)); - - GRPC_CLOSURE_INIT(&wc_arg->wrapper_closure, wrapped_rr_closure, wc_arg, - grpc_schedule_on_exec_ctx); - wc_arg->rr_policy = glb_policy->rr_policy; - wc_arg->target = target; - wc_arg->context = context; - GPR_ASSERT(glb_policy->client_stats != NULL); - wc_arg->client_stats = - grpc_grpclb_client_stats_ref(glb_policy->client_stats); - wc_arg->wrapped_closure = on_complete; - wc_arg->lb_token_mdelem_storage = pick_args->lb_token_mdelem_storage; - wc_arg->initial_metadata = pick_args->initial_metadata; - wc_arg->free_when_done = wc_arg; - pick_done = - pick_from_internal_rr_locked(exec_ctx, glb_policy, pick_args, - false /* force_async */, target, wc_arg); - } else { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + } else { // glb_policy->rr_policy == NULL + if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_DEBUG, - "No RR policy in grpclb instance %p. Adding to grpclb's pending " - "picks", - (void *)(glb_policy)); + "[grpclb %p] No RR policy. Adding to grpclb's pending picks", + glb_policy); } add_pending_pick(&glb_policy->pending_picks, pick_args, target, context, on_complete); - if (!glb_policy->started_picking) { start_picking_locked(exec_ctx, glb_policy); } @@ -1212,16 +1237,16 @@ static int glb_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, } static grpc_connectivity_state glb_check_connectivity_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_error **connectivity_error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; + grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_error** connectivity_error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; return grpc_connectivity_state_get(&glb_policy->state_tracker, connectivity_error); } -static void glb_ping_one_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_closure *closure) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; +static void glb_ping_one_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_closure* closure) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; if (glb_policy->rr_policy) { grpc_lb_policy_ping_one_locked(exec_ctx, glb_policy->rr_policy, closure); } else { @@ -1232,32 +1257,31 @@ static void glb_ping_one_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, } } -static void glb_notify_on_state_change_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol, - grpc_connectivity_state *current, - grpc_closure *notify) { - glb_lb_policy *glb_policy = (glb_lb_policy *)pol; +static void glb_notify_on_state_change_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* pol, + grpc_connectivity_state* current, + grpc_closure* notify) { + glb_lb_policy* glb_policy = (glb_lb_policy*)pol; grpc_connectivity_state_notify_on_state_change( exec_ctx, &glb_policy->state_tracker, current, notify); } -static void lb_call_on_retry_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; +static void lb_call_on_retry_timer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; glb_policy->retry_timer_active = false; - if (!glb_policy->shutting_down && error == GRPC_ERROR_NONE) { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Restaring call to LB server (grpclb %p)", - (void *)glb_policy); + if (!glb_policy->shutting_down && glb_policy->lb_call == nullptr && + error == GRPC_ERROR_NONE) { + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, "[grpclb %p] Restarting call to LB server", glb_policy); } - GPR_ASSERT(glb_policy->lb_call == NULL); query_for_backends_locked(exec_ctx, glb_policy); } GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base, "grpclb_retry_timer"); } -static void maybe_restart_lb_call(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { +static void maybe_restart_lb_call(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { if (glb_policy->started_picking && glb_policy->updating_lb_call) { if (glb_policy->retry_timer_active) { grpc_timer_cancel(exec_ctx, &glb_policy->lb_call_retry_timer); @@ -1267,16 +1291,19 @@ static void maybe_restart_lb_call(grpc_exec_ctx *exec_ctx, } else if (!glb_policy->shutting_down) { /* if we aren't shutting down, restart the LB client call after some time */ grpc_millis next_try = - grpc_backoff_step(exec_ctx, &glb_policy->lb_call_backoff_state); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_DEBUG, "Connection to LB server lost (grpclb: %p)...", - (void *)glb_policy); + grpc_backoff_step(exec_ctx, &glb_policy->lb_call_backoff_state) + .next_attempt_start_time; + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_DEBUG, "[grpclb %p] Connection to LB server lost...", + glb_policy); grpc_millis timeout = next_try - grpc_exec_ctx_now(exec_ctx); if (timeout > 0) { - gpr_log(GPR_DEBUG, "... retry_timer_active in %" PRIdPTR "ms.", - timeout); + gpr_log(GPR_DEBUG, + "[grpclb %p] ... retry_timer_active in %" PRIuPTR "ms.", + glb_policy, timeout); } else { - gpr_log(GPR_DEBUG, "... retry_timer_active immediately."); + gpr_log(GPR_DEBUG, "[grpclb %p] ... retry_timer_active immediately.", + glb_policy); } } GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "grpclb_retry_timer"); @@ -1291,11 +1318,11 @@ static void maybe_restart_lb_call(grpc_exec_ctx *exec_ctx, "lb_on_server_status_received_locked"); } -static void send_client_load_report_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); +static void send_client_load_report_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); -static void schedule_next_client_load_report(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { +static void schedule_next_client_load_report(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { const grpc_millis next_client_load_report_time = grpc_exec_ctx_now(exec_ctx) + glb_policy->client_stats_report_interval; GRPC_CLOSURE_INIT(&glb_policy->client_load_report_closure, @@ -1306,47 +1333,50 @@ static void schedule_next_client_load_report(grpc_exec_ctx *exec_ctx, &glb_policy->client_load_report_closure); } -static void client_load_report_done_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; +static void client_load_report_done_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; grpc_byte_buffer_destroy(glb_policy->client_load_report_payload); - glb_policy->client_load_report_payload = NULL; - if (error != GRPC_ERROR_NONE || glb_policy->lb_call == NULL) { + glb_policy->client_load_report_payload = nullptr; + if (error != GRPC_ERROR_NONE || glb_policy->lb_call == nullptr) { glb_policy->client_load_report_timer_pending = false; GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base, "client_load_report"); + if (glb_policy->lb_call == nullptr) { + maybe_restart_lb_call(exec_ctx, glb_policy); + } return; } schedule_next_client_load_report(exec_ctx, glb_policy); } -static bool load_report_counters_are_zero(grpc_grpclb_request *request) { - grpc_grpclb_dropped_call_counts *drop_entries = - (grpc_grpclb_dropped_call_counts *) +static bool load_report_counters_are_zero(grpc_grpclb_request* request) { + grpc_grpclb_dropped_call_counts* drop_entries = + (grpc_grpclb_dropped_call_counts*) request->client_stats.calls_finished_with_drop.arg; return request->client_stats.num_calls_started == 0 && request->client_stats.num_calls_finished == 0 && request->client_stats.num_calls_finished_with_client_failed_to_send == 0 && request->client_stats.num_calls_finished_known_received == 0 && - (drop_entries == NULL || drop_entries->num_entries == 0); + (drop_entries == nullptr || drop_entries->num_entries == 0); } -static void send_client_load_report_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; - if (error == GRPC_ERROR_CANCELLED || glb_policy->lb_call == NULL) { +static void send_client_load_report_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; + if (error == GRPC_ERROR_CANCELLED || glb_policy->lb_call == nullptr) { glb_policy->client_load_report_timer_pending = false; GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base, "client_load_report"); - if (glb_policy->lb_call == NULL) { + if (glb_policy->lb_call == nullptr) { maybe_restart_lb_call(exec_ctx, glb_policy); } return; } // Construct message payload. - GPR_ASSERT(glb_policy->client_load_report_payload == NULL); - grpc_grpclb_request *request = + GPR_ASSERT(glb_policy->client_load_report_payload == nullptr); + grpc_grpclb_request* request = grpc_grpclb_load_report_request_create_locked(glb_policy->client_stats); // Skip client load report if the counters were all zero in the last // report and they are still zero in this one. @@ -1377,20 +1407,20 @@ static void send_client_load_report_locked(grpc_exec_ctx *exec_ctx, void *arg, exec_ctx, glb_policy->lb_call, &op, 1, &glb_policy->client_load_report_closure); if (call_error != GRPC_CALL_OK) { - gpr_log(GPR_ERROR, "call_error=%d", call_error); + gpr_log(GPR_ERROR, "[grpclb %p] call_error=%d", glb_policy, call_error); GPR_ASSERT(GRPC_CALL_OK == call_error); } } -static void lb_on_server_status_received_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error); -static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); -static void lb_call_init_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { - GPR_ASSERT(glb_policy->server_name != NULL); +static void lb_on_server_status_received_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error); +static void lb_on_response_received_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); +static void lb_call_init_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { + GPR_ASSERT(glb_policy->server_name != nullptr); GPR_ASSERT(glb_policy->server_name[0] != '\0'); - GPR_ASSERT(glb_policy->lb_call == NULL); + GPR_ASSERT(glb_policy->lb_call == nullptr); GPR_ASSERT(!glb_policy->shutting_down); /* Note the following LB call progresses every time there's activity in \a @@ -1402,13 +1432,13 @@ static void lb_call_init_locked(grpc_exec_ctx *exec_ctx, ? GRPC_MILLIS_INF_FUTURE : grpc_exec_ctx_now(exec_ctx) + glb_policy->lb_call_timeout_ms; glb_policy->lb_call = grpc_channel_create_pollset_set_call( - exec_ctx, glb_policy->lb_channel, NULL, GRPC_PROPAGATE_DEFAULTS, + exec_ctx, glb_policy->lb_channel, nullptr, GRPC_PROPAGATE_DEFAULTS, glb_policy->base.interested_parties, GRPC_MDSTR_SLASH_GRPC_DOT_LB_DOT_V1_DOT_LOADBALANCER_SLASH_BALANCELOAD, - &host, deadline, NULL); + &host, deadline, nullptr); grpc_slice_unref_internal(exec_ctx, host); - if (glb_policy->client_stats != NULL) { + if (glb_policy->client_stats != nullptr) { grpc_grpclb_client_stats_unref(glb_policy->client_stats); } glb_policy->client_stats = grpc_grpclb_client_stats_create(); @@ -1416,7 +1446,7 @@ static void lb_call_init_locked(grpc_exec_ctx *exec_ctx, grpc_metadata_array_init(&glb_policy->lb_initial_metadata_recv); grpc_metadata_array_init(&glb_policy->lb_trailing_metadata_recv); - grpc_grpclb_request *request = + grpc_grpclb_request* request = grpc_grpclb_request_create(glb_policy->server_name); grpc_slice request_payload_slice = grpc_grpclb_request_encode(request); glb_policy->lb_request_payload = @@ -1432,7 +1462,7 @@ static void lb_call_init_locked(grpc_exec_ctx *exec_ctx, grpc_combiner_scheduler(glb_policy->base.combiner)); grpc_backoff_init(&glb_policy->lb_call_backoff_state, - GRPC_GRPCLB_INITIAL_CONNECT_BACKOFF_SECONDS, + GRPC_GRPCLB_INITIAL_CONNECT_BACKOFF_SECONDS * 1000, GRPC_GRPCLB_RECONNECT_BACKOFF_MULTIPLIER, GRPC_GRPCLB_RECONNECT_JITTER, GRPC_GRPCLB_MIN_CONNECT_TIMEOUT_SECONDS * 1000, @@ -1442,11 +1472,11 @@ static void lb_call_init_locked(grpc_exec_ctx *exec_ctx, glb_policy->last_client_load_report_counters_were_zero = false; } -static void lb_call_destroy_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { - GPR_ASSERT(glb_policy->lb_call != NULL); +static void lb_call_destroy_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { + GPR_ASSERT(glb_policy->lb_call != nullptr); grpc_call_unref(glb_policy->lb_call); - glb_policy->lb_call = NULL; + glb_policy->lb_call = nullptr; grpc_metadata_array_destroy(&glb_policy->lb_initial_metadata_recv); grpc_metadata_array_destroy(&glb_policy->lb_trailing_metadata_recv); @@ -1462,45 +1492,44 @@ static void lb_call_destroy_locked(grpc_exec_ctx *exec_ctx, /* * Auxiliary functions and LB client callbacks. */ -static void query_for_backends_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy) { - GPR_ASSERT(glb_policy->lb_channel != NULL); +static void query_for_backends_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy) { + GPR_ASSERT(glb_policy->lb_channel != nullptr); if (glb_policy->shutting_down) return; lb_call_init_locked(exec_ctx, glb_policy); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_INFO, - "Query for backends (grpclb: %p, lb_channel: %p, lb_call: %p)", - (void *)glb_policy, (void *)glb_policy->lb_channel, - (void *)glb_policy->lb_call); + "[grpclb %p] Query for backends (lb_channel: %p, lb_call: %p)", + glb_policy, glb_policy->lb_channel, glb_policy->lb_call); } - GPR_ASSERT(glb_policy->lb_call != NULL); + GPR_ASSERT(glb_policy->lb_call != nullptr); grpc_call_error call_error; grpc_op ops[3]; memset(ops, 0, sizeof(ops)); - grpc_op *op = ops; + grpc_op* op = ops; op->op = GRPC_OP_SEND_INITIAL_METADATA; op->data.send_initial_metadata.count = 0; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; op->op = GRPC_OP_RECV_INITIAL_METADATA; op->data.recv_initial_metadata.recv_initial_metadata = &glb_policy->lb_initial_metadata_recv; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; - GPR_ASSERT(glb_policy->lb_request_payload != NULL); + GPR_ASSERT(glb_policy->lb_request_payload != nullptr); op->op = GRPC_OP_SEND_MESSAGE; op->data.send_message.send_message = glb_policy->lb_request_payload; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; - call_error = grpc_call_start_batch_and_execute(exec_ctx, glb_policy->lb_call, - ops, (size_t)(op - ops), NULL); + call_error = grpc_call_start_batch_and_execute( + exec_ctx, glb_policy->lb_call, ops, (size_t)(op - ops), nullptr); GPR_ASSERT(GRPC_CALL_OK == call_error); op = ops; @@ -1511,7 +1540,7 @@ static void query_for_backends_locked(grpc_exec_ctx *exec_ctx, op->data.recv_status_on_client.status_details = &glb_policy->lb_call_status_details; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; /* take a weak ref (won't prevent calling of \a glb_shutdown if the strong ref * count goes to zero) to be unref'd in lb_on_server_status_received_locked */ @@ -1526,7 +1555,7 @@ static void query_for_backends_locked(grpc_exec_ctx *exec_ctx, op->op = GRPC_OP_RECV_MESSAGE; op->data.recv_message.recv_message = &glb_policy->lb_response_payload; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; /* take another weak ref to be unref'd/reused in * lb_on_response_received_locked */ @@ -1537,13 +1566,13 @@ static void query_for_backends_locked(grpc_exec_ctx *exec_ctx, GPR_ASSERT(GRPC_CALL_OK == call_error); } -static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; +static void lb_on_response_received_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; grpc_op ops[2]; memset(ops, 0, sizeof(ops)); - grpc_op *op = ops; - if (glb_policy->lb_response_payload != NULL) { + grpc_op* op = ops; + if (glb_policy->lb_response_payload != nullptr) { grpc_backoff_reset(&glb_policy->lb_call_backoff_state); /* Received data from the LB server. Look inside * glb_policy->lb_response_payload, for a serverlist. */ @@ -1553,19 +1582,19 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, grpc_byte_buffer_reader_destroy(&bbr); grpc_byte_buffer_destroy(glb_policy->lb_response_payload); - grpc_grpclb_initial_response *response = NULL; + grpc_grpclb_initial_response* response = nullptr; if (!glb_policy->seen_initial_response && (response = grpc_grpclb_initial_response_parse(response_slice)) != - NULL) { + nullptr) { if (response->has_client_stats_report_interval) { glb_policy->client_stats_report_interval = GPR_MAX( GPR_MS_PER_SEC, grpc_grpclb_duration_to_millis( &response->client_stats_report_interval)); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_INFO, - "received initial LB response message; " + "[grpclb %p] Received initial LB response message; " "client load reporting interval = %" PRIdPTR " milliseconds", - glb_policy->client_stats_report_interval); + glb_policy, glb_policy->client_stats_report_interval); } /* take a weak ref (won't prevent calling of \a glb_shutdown() if the * strong ref count goes to zero) to be unref'd in @@ -1573,27 +1602,30 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, glb_policy->client_load_report_timer_pending = true; GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "client_load_report"); schedule_next_client_load_report(exec_ctx, glb_policy); - } else if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + } else if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_INFO, - "received initial LB response message; " - "client load reporting NOT enabled"); + "[grpclb %p] Received initial LB response message; client load " + "reporting NOT enabled", + glb_policy); } grpc_grpclb_initial_response_destroy(response); glb_policy->seen_initial_response = true; } else { - grpc_grpclb_serverlist *serverlist = + grpc_grpclb_serverlist* serverlist = grpc_grpclb_response_parse_serverlist(response_slice); - if (serverlist != NULL) { - GPR_ASSERT(glb_policy->lb_call != NULL); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Serverlist with %lu servers received", - (unsigned long)serverlist->num_servers); + if (serverlist != nullptr) { + GPR_ASSERT(glb_policy->lb_call != nullptr); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, + "[grpclb %p] Serverlist with %" PRIuPTR " servers received", + glb_policy, serverlist->num_servers); for (size_t i = 0; i < serverlist->num_servers; ++i) { grpc_resolved_address addr; parse_server(serverlist->servers[i], &addr); - char *ipport; + char* ipport; grpc_sockaddr_to_string(&ipport, &addr, false); - gpr_log(GPR_INFO, "Serverlist[%lu]: %s", (unsigned long)i, ipport); + gpr_log(GPR_INFO, "[grpclb %p] Serverlist[%" PRIuPTR "]: %s", + glb_policy, i, ipport); gpr_free(ipport); } } @@ -1601,20 +1633,22 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, if (serverlist->num_servers > 0) { if (grpc_grpclb_serverlist_equals(glb_policy->serverlist, serverlist)) { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_INFO, - "Incoming server list identical to current, ignoring."); + "[grpclb %p] Incoming server list identical to current, " + "ignoring.", + glb_policy); } grpc_grpclb_destroy_serverlist(serverlist); } else { /* new serverlist */ - if (glb_policy->serverlist != NULL) { + if (glb_policy->serverlist != nullptr) { /* dispose of the old serverlist */ grpc_grpclb_destroy_serverlist(glb_policy->serverlist); } else { /* or dispose of the fallback */ grpc_lb_addresses_destroy(exec_ctx, glb_policy->fallback_backend_addresses); - glb_policy->fallback_backend_addresses = NULL; + glb_policy->fallback_backend_addresses = nullptr; if (glb_policy->fallback_timer_active) { grpc_timer_cancel(exec_ctx, &glb_policy->lb_fallback_timer); glb_policy->fallback_timer_active = false; @@ -1628,13 +1662,17 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, rr_handover_locked(exec_ctx, glb_policy); } } else { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Received empty server list, ignoring."); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, + "[grpclb %p] Received empty server list, ignoring.", + glb_policy); } grpc_grpclb_destroy_serverlist(serverlist); } } else { /* serverlist == NULL */ - gpr_log(GPR_ERROR, "Invalid LB response received: '%s'. Ignoring.", + gpr_log(GPR_ERROR, + "[grpclb %p] Invalid LB response received: '%s'. Ignoring.", + glb_policy, grpc_dump_slice(response_slice, GPR_DUMP_ASCII | GPR_DUMP_HEX)); } } @@ -1644,7 +1682,7 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, op->op = GRPC_OP_RECV_MESSAGE; op->data.recv_message.recv_message = &glb_policy->lb_response_payload; op->flags = 0; - op->reserved = NULL; + op->reserved = nullptr; op++; /* reuse the "lb_on_response_received_locked" weak ref taken in * query_for_backends_locked() */ @@ -1664,20 +1702,20 @@ static void lb_on_response_received_locked(grpc_exec_ctx *exec_ctx, void *arg, } } -static void lb_on_fallback_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; +static void lb_on_fallback_timer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; glb_policy->fallback_timer_active = false; /* If we receive a serverlist after the timer fires but before this callback * actually runs, don't fall back. */ - if (glb_policy->serverlist == NULL) { + if (glb_policy->serverlist == nullptr) { if (!glb_policy->shutting_down && error == GRPC_ERROR_NONE) { - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { + if (grpc_lb_glb_trace.enabled()) { gpr_log(GPR_INFO, - "Falling back to use backends from resolver (grpclb %p)", - (void *)glb_policy); + "[grpclb %p] Falling back to use backends from resolver", + glb_policy); } - GPR_ASSERT(glb_policy->fallback_backend_addresses != NULL); + GPR_ASSERT(glb_policy->fallback_backend_addresses != nullptr); rr_handover_locked(exec_ctx, glb_policy); } } @@ -1685,18 +1723,18 @@ static void lb_on_fallback_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, "grpclb_fallback_timer"); } -static void lb_on_server_status_received_locked(grpc_exec_ctx *exec_ctx, - void *arg, grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; - GPR_ASSERT(glb_policy->lb_call != NULL); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - char *status_details = +static void lb_on_server_status_received_locked(grpc_exec_ctx* exec_ctx, + void* arg, grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; + GPR_ASSERT(glb_policy->lb_call != nullptr); + if (grpc_lb_glb_trace.enabled()) { + char* status_details = grpc_slice_to_c_string(glb_policy->lb_call_status_details); gpr_log(GPR_INFO, - "Status from LB server received. Status = %d, Details = '%s', " - "(call: %p), error %p", - glb_policy->lb_call_status, status_details, - (void *)glb_policy->lb_call, (void *)error); + "[grpclb %p] Status from LB server received. Status = %d, Details " + "= '%s', (call: %p), error '%s'", + glb_policy, glb_policy->lb_call_status, status_details, + glb_policy->lb_call, grpc_error_string(error)); gpr_free(status_details); } /* We need to perform cleanups no matter what. */ @@ -1709,26 +1747,26 @@ static void lb_on_server_status_received_locked(grpc_exec_ctx *exec_ctx, } } -static void fallback_update_locked(grpc_exec_ctx *exec_ctx, - glb_lb_policy *glb_policy, - const grpc_lb_addresses *addresses) { - GPR_ASSERT(glb_policy->fallback_backend_addresses != NULL); +static void fallback_update_locked(grpc_exec_ctx* exec_ctx, + glb_lb_policy* glb_policy, + const grpc_lb_addresses* addresses) { + GPR_ASSERT(glb_policy->fallback_backend_addresses != nullptr); grpc_lb_addresses_destroy(exec_ctx, glb_policy->fallback_backend_addresses); glb_policy->fallback_backend_addresses = extract_backend_addresses_locked(exec_ctx, addresses); - if (glb_policy->lb_fallback_timeout_ms > 0 && + if (glb_policy->started_picking && glb_policy->lb_fallback_timeout_ms > 0 && !glb_policy->fallback_timer_active) { rr_handover_locked(exec_ctx, glb_policy); } } -static void glb_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_args *args) { - glb_lb_policy *glb_policy = (glb_lb_policy *)policy; - const grpc_arg *arg = +static void glb_update_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_args* args) { + glb_lb_policy* glb_policy = (glb_lb_policy*)policy; + const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES); - if (arg == NULL || arg->type != GRPC_ARG_POINTER) { - if (glb_policy->lb_channel == NULL) { + if (arg == nullptr || arg->type != GRPC_ARG_POINTER) { + if (glb_policy->lb_channel == nullptr) { // If we don't have a current channel to the LB, go into TRANSIENT // FAILURE. grpc_connectivity_state_set( @@ -1737,24 +1775,24 @@ static void glb_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, "glb_update_missing"); } else { // otherwise, keep using the current LB channel (ignore this update). - gpr_log(GPR_ERROR, - "No valid LB addresses channel arg for grpclb %p update, " - "ignoring.", - (void *)glb_policy); + gpr_log( + GPR_ERROR, + "[grpclb %p] No valid LB addresses channel arg in update, ignoring.", + glb_policy); } return; } - const grpc_lb_addresses *addresses = - (const grpc_lb_addresses *)arg->value.pointer.p; + const grpc_lb_addresses* addresses = + (const grpc_lb_addresses*)arg->value.pointer.p; // If a non-empty serverlist hasn't been received from the balancer, // propagate the update to fallback_backend_addresses. - if (glb_policy->serverlist == NULL) { + if (glb_policy->serverlist == nullptr) { fallback_update_locked(exec_ctx, glb_policy, addresses); } - GPR_ASSERT(glb_policy->lb_channel != NULL); + GPR_ASSERT(glb_policy->lb_channel != nullptr); // Propagate updates to the LB channel (pick_first) through the fake // resolver. - grpc_channel_args *lb_channel_args = build_lb_channel_args( + grpc_channel_args* lb_channel_args = build_lb_channel_args( exec_ctx, addresses, glb_policy->response_generator, args->args); grpc_fake_resolver_response_generator_set_response( exec_ctx, glb_policy->response_generator, lb_channel_args); @@ -1764,7 +1802,7 @@ static void glb_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, if (!glb_policy->watching_lb_channel) { glb_policy->lb_channel_connectivity = grpc_channel_check_connectivity_state( glb_policy->lb_channel, true /* try to connect */); - grpc_channel_element *client_channel_elem = grpc_channel_stack_last_element( + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element( grpc_channel_get_channel_stack(glb_policy->lb_channel)); GPR_ASSERT(client_channel_elem->filter == &grpc_client_channel_filter); glb_policy->watching_lb_channel = true; @@ -1774,27 +1812,26 @@ static void glb_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, grpc_polling_entity_create_from_pollset_set( glb_policy->base.interested_parties), &glb_policy->lb_channel_connectivity, - &glb_policy->lb_channel_on_connectivity_changed, NULL); + &glb_policy->lb_channel_on_connectivity_changed, nullptr); } } // Invoked as part of the update process. It continues watching the LB channel // until it shuts down or becomes READY. It's invoked even if the LB channel // stayed READY throughout the update (for example if the update is identical). -static void glb_lb_channel_on_connectivity_changed_cb(grpc_exec_ctx *exec_ctx, - void *arg, - grpc_error *error) { - glb_lb_policy *glb_policy = (glb_lb_policy *)arg; +static void glb_lb_channel_on_connectivity_changed_cb(grpc_exec_ctx* exec_ctx, + void* arg, + grpc_error* error) { + glb_lb_policy* glb_policy = (glb_lb_policy*)arg; if (glb_policy->shutting_down) goto done; // Re-initialize the lb_call. This should also take care of updating the // embedded RR policy. Note that the current RR policy, if any, will stay in // effect until an update from the new lb_call is received. switch (glb_policy->lb_channel_connectivity) { - case GRPC_CHANNEL_INIT: case GRPC_CHANNEL_CONNECTING: case GRPC_CHANNEL_TRANSIENT_FAILURE: { /* resub. */ - grpc_channel_element *client_channel_elem = + grpc_channel_element* client_channel_elem = grpc_channel_stack_last_element( grpc_channel_get_channel_stack(glb_policy->lb_channel)); GPR_ASSERT(client_channel_elem->filter == &grpc_client_channel_filter); @@ -1803,7 +1840,7 @@ static void glb_lb_channel_on_connectivity_changed_cb(grpc_exec_ctx *exec_ctx, grpc_polling_entity_create_from_pollset_set( glb_policy->base.interested_parties), &glb_policy->lb_channel_connectivity, - &glb_policy->lb_channel_on_connectivity_changed, NULL); + &glb_policy->lb_channel_on_connectivity_changed, nullptr); break; } case GRPC_CHANNEL_IDLE: @@ -1811,9 +1848,9 @@ static void glb_lb_channel_on_connectivity_changed_cb(grpc_exec_ctx *exec_ctx, // call to kick the lb channel into gear. /* fallthrough */ case GRPC_CHANNEL_READY: - if (glb_policy->lb_call != NULL) { + if (glb_policy->lb_call != nullptr) { glb_policy->updating_lb_call = true; - grpc_call_cancel(glb_policy->lb_call, NULL); + grpc_call_cancel(glb_policy->lb_call, nullptr); // lb_on_server_status_received() will pick up the cancel and reinit // lb_call. } else if (glb_policy->started_picking && !glb_policy->shutting_down) { @@ -1846,40 +1883,41 @@ static const grpc_lb_policy_vtable glb_lb_policy_vtable = { glb_notify_on_state_change_locked, glb_update_locked}; -static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, - grpc_lb_policy_factory *factory, - grpc_lb_policy_args *args) { +static grpc_lb_policy* glb_create(grpc_exec_ctx* exec_ctx, + grpc_lb_policy_factory* factory, + grpc_lb_policy_args* args) { /* Count the number of gRPC-LB addresses. There must be at least one. */ - const grpc_arg *arg = + const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES); - if (arg == NULL || arg->type != GRPC_ARG_POINTER) { - return NULL; + if (arg == nullptr || arg->type != GRPC_ARG_POINTER) { + return nullptr; } - grpc_lb_addresses *addresses = (grpc_lb_addresses *)arg->value.pointer.p; + grpc_lb_addresses* addresses = (grpc_lb_addresses*)arg->value.pointer.p; size_t num_grpclb_addrs = 0; for (size_t i = 0; i < addresses->num_addresses; ++i) { if (addresses->addresses[i].is_balancer) ++num_grpclb_addrs; } - if (num_grpclb_addrs == 0) return NULL; + if (num_grpclb_addrs == 0) return nullptr; - glb_lb_policy *glb_policy = (glb_lb_policy *)gpr_zalloc(sizeof(*glb_policy)); + glb_lb_policy* glb_policy = (glb_lb_policy*)gpr_zalloc(sizeof(*glb_policy)); /* Get server name. */ arg = grpc_channel_args_find(args->args, GRPC_ARG_SERVER_URI); - GPR_ASSERT(arg != NULL); + GPR_ASSERT(arg != nullptr); GPR_ASSERT(arg->type == GRPC_ARG_STRING); - grpc_uri *uri = grpc_uri_parse(exec_ctx, arg->value.string, true); + grpc_uri* uri = grpc_uri_parse(exec_ctx, arg->value.string, true); GPR_ASSERT(uri->path[0] != '\0'); glb_policy->server_name = gpr_strdup(uri->path[0] == '/' ? uri->path + 1 : uri->path); - if (GRPC_TRACER_ON(grpc_lb_glb_trace)) { - gpr_log(GPR_INFO, "Will use '%s' as the server name for LB request.", - glb_policy->server_name); + if (grpc_lb_glb_trace.enabled()) { + gpr_log(GPR_INFO, + "[grpclb %p] Will use '%s' as the server name for LB request.", + glb_policy, glb_policy->server_name); } grpc_uri_destroy(uri); glb_policy->cc_factory = args->client_channel_factory; - GPR_ASSERT(glb_policy->cc_factory != NULL); + GPR_ASSERT(glb_policy->cc_factory != nullptr); arg = grpc_channel_args_find(args->args, GRPC_ARG_GRPCLB_CALL_TIMEOUT_MS); glb_policy->lb_call_timeout_ms = @@ -1892,8 +1930,8 @@ static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, // Make sure that GRPC_ARG_LB_POLICY_NAME is set in channel args, // since we use this to trigger the client_load_reporting filter. grpc_arg new_arg = grpc_channel_arg_string_create( - (char *)GRPC_ARG_LB_POLICY_NAME, (char *)"grpclb"); - static const char *args_to_remove[] = {GRPC_ARG_LB_POLICY_NAME}; + (char*)GRPC_ARG_LB_POLICY_NAME, (char*)"grpclb"); + static const char* args_to_remove[] = {GRPC_ARG_LB_POLICY_NAME}; glb_policy->args = grpc_channel_args_copy_and_add_and_remove( args->args, args_to_remove, GPR_ARRAY_SIZE(args_to_remove), &new_arg, 1); @@ -1905,9 +1943,9 @@ static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, /* Create a client channel over them to communicate with a LB service */ glb_policy->response_generator = grpc_fake_resolver_response_generator_create(); - grpc_channel_args *lb_channel_args = build_lb_channel_args( + grpc_channel_args* lb_channel_args = build_lb_channel_args( exec_ctx, addresses, glb_policy->response_generator, args->args); - char *uri_str; + char* uri_str; gpr_asprintf(&uri_str, "fake:///%s", glb_policy->server_name); glb_policy->lb_channel = grpc_lb_policy_grpclb_create_lb_channel( exec_ctx, uri_str, args->client_channel_factory, lb_channel_args); @@ -1917,11 +1955,11 @@ static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, exec_ctx, glb_policy->response_generator, lb_channel_args); grpc_channel_args_destroy(exec_ctx, lb_channel_args); gpr_free(uri_str); - if (glb_policy->lb_channel == NULL) { - gpr_free((void *)glb_policy->server_name); + if (glb_policy->lb_channel == nullptr) { + gpr_free((void*)glb_policy->server_name); grpc_channel_args_destroy(exec_ctx, glb_policy->args); gpr_free(glb_policy); - return NULL; + return nullptr; } grpc_subchannel_index_ref(); GRPC_CLOSURE_INIT(&glb_policy->lb_channel_on_connectivity_changed, @@ -1933,16 +1971,16 @@ static grpc_lb_policy *glb_create(grpc_exec_ctx *exec_ctx, return &glb_policy->base; } -static void glb_factory_ref(grpc_lb_policy_factory *factory) {} +static void glb_factory_ref(grpc_lb_policy_factory* factory) {} -static void glb_factory_unref(grpc_lb_policy_factory *factory) {} +static void glb_factory_unref(grpc_lb_policy_factory* factory) {} static const grpc_lb_policy_factory_vtable glb_factory_vtable = { glb_factory_ref, glb_factory_unref, glb_create, "grpclb"}; static grpc_lb_policy_factory glb_lb_policy_factory = {&glb_factory_vtable}; -grpc_lb_policy_factory *grpc_glb_lb_factory_create() { +grpc_lb_policy_factory* grpc_glb_lb_factory_create() { return &glb_lb_policy_factory; } @@ -1950,29 +1988,25 @@ grpc_lb_policy_factory *grpc_glb_lb_factory_create() { // Only add client_load_reporting filter if the grpclb LB policy is used. static bool maybe_add_client_load_reporting_filter( - grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder *builder, void *arg) { - const grpc_channel_args *args = + grpc_exec_ctx* exec_ctx, grpc_channel_stack_builder* builder, void* arg) { + const grpc_channel_args* args = grpc_channel_stack_builder_get_channel_arguments(builder); - const grpc_arg *channel_arg = + const grpc_arg* channel_arg = grpc_channel_args_find(args, GRPC_ARG_LB_POLICY_NAME); - if (channel_arg != NULL && channel_arg->type == GRPC_ARG_STRING && + if (channel_arg != nullptr && channel_arg->type == GRPC_ARG_STRING && strcmp(channel_arg->value.string, "grpclb") == 0) { return grpc_channel_stack_builder_append_filter( - builder, (const grpc_channel_filter *)arg, NULL, NULL); + builder, (const grpc_channel_filter*)arg, nullptr, nullptr); } return true; } extern "C" void grpc_lb_policy_grpclb_init() { grpc_register_lb_policy(grpc_glb_lb_factory_create()); - grpc_register_tracer(&grpc_lb_glb_trace); -#ifndef NDEBUG - grpc_register_tracer(&grpc_trace_lb_policy_refcount); -#endif grpc_channel_init_register_stage(GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, maybe_add_client_load_reporting_filter, - (void *)&grpc_client_load_reporting_filter); + (void*)&grpc_client_load_reporting_filter); } extern "C" void grpc_lb_policy_grpclb_shutdown() {} diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h index 15c8a680b7..b6135a4768 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h @@ -28,7 +28,7 @@ extern "C" { /** Returns a load balancing factory for the glb policy, which tries to connect * to a load balancing server to decide the next successfully connected * subchannel to pick. */ -grpc_lb_policy_factory *grpc_glb_lb_factory_create(); +grpc_lb_policy_factory* grpc_glb_lb_factory_create(); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.cc index f2967182e2..aacaec197d 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.cc @@ -25,20 +25,20 @@ #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/support/string.h" -grpc_channel *grpc_lb_policy_grpclb_create_lb_channel( - grpc_exec_ctx *exec_ctx, const char *lb_service_target_addresses, - grpc_client_channel_factory *client_channel_factory, - grpc_channel_args *args) { - grpc_channel *lb_channel = grpc_client_channel_factory_create_channel( +grpc_channel* grpc_lb_policy_grpclb_create_lb_channel( + grpc_exec_ctx* exec_ctx, const char* lb_service_target_addresses, + grpc_client_channel_factory* client_channel_factory, + grpc_channel_args* args) { + grpc_channel* lb_channel = grpc_client_channel_factory_create_channel( exec_ctx, client_channel_factory, lb_service_target_addresses, GRPC_CLIENT_CHANNEL_TYPE_LOAD_BALANCING, args); return lb_channel; } -grpc_channel_args *grpc_lb_policy_grpclb_build_lb_channel_args( - grpc_exec_ctx *exec_ctx, grpc_slice_hash_table *targets_info, - grpc_fake_resolver_response_generator *response_generator, - const grpc_channel_args *args) { +grpc_channel_args* grpc_lb_policy_grpclb_build_lb_channel_args( + grpc_exec_ctx* exec_ctx, grpc_slice_hash_table* targets_info, + grpc_fake_resolver_response_generator* response_generator, + const grpc_channel_args* args) { const grpc_arg to_add[] = { grpc_fake_resolver_response_generator_arg(response_generator)}; /* We remove: @@ -62,7 +62,7 @@ grpc_channel_args *grpc_lb_policy_grpclb_build_lb_channel_args( * * - The fake resolver generator, because we are replacing it with the one * from the grpclb policy, used to propagate updates to the LB channel. */ - static const char *keys_to_remove[] = { + static const char* keys_to_remove[] = { GRPC_ARG_LB_POLICY_NAME, GRPC_ARG_LB_ADDRESSES, GRPC_ARG_SERVER_URI, GRPC_ARG_FAKE_RESOLVER_RESPONSE_GENERATOR}; return grpc_channel_args_copy_and_add_and_remove( diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h index e8599d1f51..39cbf53428 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h @@ -34,19 +34,19 @@ extern "C" { * from resolving the LB service's name (eg, ipv4:10.0.0.1:1234,10.2.3.4:9876). * \a client_channel_factory will be used for the creation of the LB channel, * alongside the channel args passed in \a args. */ -grpc_channel *grpc_lb_policy_grpclb_create_lb_channel( - grpc_exec_ctx *exec_ctx, const char *lb_service_target_addresses, - grpc_client_channel_factory *client_channel_factory, - grpc_channel_args *args); +grpc_channel* grpc_lb_policy_grpclb_create_lb_channel( + grpc_exec_ctx* exec_ctx, const char* lb_service_target_addresses, + grpc_client_channel_factory* client_channel_factory, + grpc_channel_args* args); -grpc_channel_args *grpc_lb_policy_grpclb_build_lb_channel_args( - grpc_exec_ctx *exec_ctx, grpc_slice_hash_table *targets_info, - grpc_fake_resolver_response_generator *response_generator, - const grpc_channel_args *args); +grpc_channel_args* grpc_lb_policy_grpclb_build_lb_channel_args( + grpc_exec_ctx* exec_ctx, grpc_slice_hash_table* targets_info, + grpc_fake_resolver_response_generator* response_generator, + const grpc_channel_args* args); #ifdef __cplusplus } #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.cc index 2681b2a079..8eaa90e97b 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.cc @@ -28,22 +28,22 @@ #include "src/core/lib/slice/slice_internal.h" #include "src/core/lib/support/string.h" -grpc_channel *grpc_lb_policy_grpclb_create_lb_channel( - grpc_exec_ctx *exec_ctx, const char *lb_service_target_addresses, - grpc_client_channel_factory *client_channel_factory, - grpc_channel_args *args) { - grpc_channel_args *new_args = args; - grpc_channel_credentials *channel_credentials = +grpc_channel* grpc_lb_policy_grpclb_create_lb_channel( + grpc_exec_ctx* exec_ctx, const char* lb_service_target_addresses, + grpc_client_channel_factory* client_channel_factory, + grpc_channel_args* args) { + grpc_channel_args* new_args = args; + grpc_channel_credentials* channel_credentials = grpc_channel_credentials_find_in_args(args); - if (channel_credentials != NULL) { + if (channel_credentials != nullptr) { /* Substitute the channel credentials with a version without call * credentials: the load balancer is not necessarily trusted to handle * bearer token credentials */ - static const char *keys_to_remove[] = {GRPC_ARG_CHANNEL_CREDENTIALS}; - grpc_channel_credentials *creds_sans_call_creds = + static const char* keys_to_remove[] = {GRPC_ARG_CHANNEL_CREDENTIALS}; + grpc_channel_credentials* creds_sans_call_creds = grpc_channel_credentials_duplicate_without_call_credentials( channel_credentials); - GPR_ASSERT(creds_sans_call_creds != NULL); + GPR_ASSERT(creds_sans_call_creds != nullptr); grpc_arg args_to_add[] = { grpc_channel_credentials_to_arg(creds_sans_call_creds)}; /* Create the new set of channel args */ @@ -52,19 +52,19 @@ grpc_channel *grpc_lb_policy_grpclb_create_lb_channel( GPR_ARRAY_SIZE(args_to_add)); grpc_channel_credentials_unref(exec_ctx, creds_sans_call_creds); } - grpc_channel *lb_channel = grpc_client_channel_factory_create_channel( + grpc_channel* lb_channel = grpc_client_channel_factory_create_channel( exec_ctx, client_channel_factory, lb_service_target_addresses, GRPC_CLIENT_CHANNEL_TYPE_LOAD_BALANCING, new_args); - if (channel_credentials != NULL) { + if (channel_credentials != nullptr) { grpc_channel_args_destroy(exec_ctx, new_args); } return lb_channel; } -grpc_channel_args *grpc_lb_policy_grpclb_build_lb_channel_args( - grpc_exec_ctx *exec_ctx, grpc_slice_hash_table *targets_info, - grpc_fake_resolver_response_generator *response_generator, - const grpc_channel_args *args) { +grpc_channel_args* grpc_lb_policy_grpclb_build_lb_channel_args( + grpc_exec_ctx* exec_ctx, grpc_slice_hash_table* targets_info, + grpc_fake_resolver_response_generator* response_generator, + const grpc_channel_args* args) { const grpc_arg to_add[] = { grpc_lb_targets_info_create_channel_arg(targets_info), grpc_fake_resolver_response_generator_arg(response_generator)}; @@ -89,7 +89,7 @@ grpc_channel_args *grpc_lb_policy_grpclb_build_lb_channel_args( * * - The fake resolver generator, because we are replacing it with the one * from the grpclb policy, used to propagate updates to the LB channel. */ - static const char *keys_to_remove[] = { + static const char* keys_to_remove[] = { GRPC_ARG_LB_POLICY_NAME, GRPC_ARG_LB_ADDRESSES, GRPC_ARG_SERVER_URI, GRPC_ARG_FAKE_RESOLVER_RESPONSE_GENERATOR}; /* Add the targets info table to be used for secure naming */ diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.cc index 903120ca7d..e19a6a71aa 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.cc @@ -87,7 +87,7 @@ void grpc_grpclb_client_stats_add_call_dropped_locked( gpr_atm_full_fetch_add(&client_stats->num_calls_started, (gpr_atm)1); gpr_atm_full_fetch_add(&client_stats->num_calls_finished, (gpr_atm)1); // Record the drop. - if (client_stats->drop_token_counts == NULL) { + if (client_stats->drop_token_counts == nullptr) { client_stats->drop_token_counts = (grpc_grpclb_dropped_call_counts*)gpr_zalloc( sizeof(grpc_grpclb_dropped_call_counts)); @@ -136,12 +136,12 @@ void grpc_grpclb_client_stats_get_locked( num_calls_finished_known_received, &client_stats->num_calls_finished_known_received); *drop_token_counts = client_stats->drop_token_counts; - client_stats->drop_token_counts = NULL; + client_stats->drop_token_counts = nullptr; } void grpc_grpclb_dropped_call_counts_destroy( grpc_grpclb_dropped_call_counts* drop_entries) { - if (drop_entries != NULL) { + if (drop_entries != nullptr) { for (size_t i = 0; i < drop_entries->num_entries; ++i) { gpr_free(drop_entries->token_counts[i].token); } diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h index b38c076f38..ce88cf9ee4 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_client_stats.h @@ -70,4 +70,4 @@ void grpc_grpclb_dropped_call_counts_destroy( #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CLIENT_STATS_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.cc index 4d5fb2081c..2c8d7f4291 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.cc +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.cc @@ -23,9 +23,9 @@ #include <grpc/support/alloc.h> /* invoked once for every Server in ServerList */ -static bool count_serverlist(pb_istream_t *stream, const pb_field_t *field, - void **arg) { - grpc_grpclb_serverlist *sl = (grpc_grpclb_serverlist *)*arg; +static bool count_serverlist(pb_istream_t* stream, const pb_field_t* field, + void** arg) { + grpc_grpclb_serverlist* sl = (grpc_grpclb_serverlist*)*arg; grpc_grpclb_server server; if (!pb_decode(stream, grpc_lb_v1_Server_fields, &server)) { gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(stream)); @@ -40,16 +40,16 @@ typedef struct decode_serverlist_arg { * which index of the serverlist are we currently decoding */ size_t decoding_idx; /* The decoded serverlist */ - grpc_grpclb_serverlist *serverlist; + grpc_grpclb_serverlist* serverlist; } decode_serverlist_arg; /* invoked once for every Server in ServerList */ -static bool decode_serverlist(pb_istream_t *stream, const pb_field_t *field, - void **arg) { - decode_serverlist_arg *dec_arg = (decode_serverlist_arg *)*arg; +static bool decode_serverlist(pb_istream_t* stream, const pb_field_t* field, + void** arg) { + decode_serverlist_arg* dec_arg = (decode_serverlist_arg*)*arg; GPR_ASSERT(dec_arg->serverlist->num_servers >= dec_arg->decoding_idx); - grpc_grpclb_server *server = - (grpc_grpclb_server *)gpr_zalloc(sizeof(grpc_grpclb_server)); + grpc_grpclb_server* server = + (grpc_grpclb_server*)gpr_zalloc(sizeof(grpc_grpclb_server)); if (!pb_decode(stream, grpc_lb_v1_Server_fields, server)) { gpr_free(server); gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(stream)); @@ -59,9 +59,9 @@ static bool decode_serverlist(pb_istream_t *stream, const pb_field_t *field, return true; } -grpc_grpclb_request *grpc_grpclb_request_create(const char *lb_service_name) { - grpc_grpclb_request *req = - (grpc_grpclb_request *)gpr_malloc(sizeof(grpc_grpclb_request)); +grpc_grpclb_request* grpc_grpclb_request_create(const char* lb_service_name) { + grpc_grpclb_request* req = + (grpc_grpclb_request*)gpr_malloc(sizeof(grpc_grpclb_request)); req->has_client_stats = false; req->has_initial_request = true; req->initial_request.has_name = true; @@ -71,25 +71,25 @@ grpc_grpclb_request *grpc_grpclb_request_create(const char *lb_service_name) { } static void populate_timestamp(gpr_timespec timestamp, - struct _grpc_lb_v1_Timestamp *timestamp_pb) { + struct _grpc_lb_v1_Timestamp* timestamp_pb) { timestamp_pb->has_seconds = true; timestamp_pb->seconds = timestamp.tv_sec; timestamp_pb->has_nanos = true; timestamp_pb->nanos = timestamp.tv_nsec; } -static bool encode_string(pb_ostream_t *stream, const pb_field_t *field, - void *const *arg) { - char *str = (char *)*arg; +static bool encode_string(pb_ostream_t* stream, const pb_field_t* field, + void* const* arg) { + char* str = (char*)*arg; if (!pb_encode_tag_for_field(stream, field)) return false; - return pb_encode_string(stream, (uint8_t *)str, strlen(str)); + return pb_encode_string(stream, (uint8_t*)str, strlen(str)); } -static bool encode_drops(pb_ostream_t *stream, const pb_field_t *field, - void *const *arg) { - grpc_grpclb_dropped_call_counts *drop_entries = - (grpc_grpclb_dropped_call_counts *)*arg; - if (drop_entries == NULL) return true; +static bool encode_drops(pb_ostream_t* stream, const pb_field_t* field, + void* const* arg) { + grpc_grpclb_dropped_call_counts* drop_entries = + (grpc_grpclb_dropped_call_counts*)*arg; + if (drop_entries == nullptr) return true; for (size_t i = 0; i < drop_entries->num_entries; ++i) { if (!pb_encode_tag_for_field(stream, field)) return false; grpc_lb_v1_ClientStatsPerToken drop_message; @@ -105,10 +105,10 @@ static bool encode_drops(pb_ostream_t *stream, const pb_field_t *field, return true; } -grpc_grpclb_request *grpc_grpclb_load_report_request_create_locked( - grpc_grpclb_client_stats *client_stats) { - grpc_grpclb_request *req = - (grpc_grpclb_request *)gpr_zalloc(sizeof(grpc_grpclb_request)); +grpc_grpclb_request* grpc_grpclb_load_report_request_create_locked( + grpc_grpclb_client_stats* client_stats) { + grpc_grpclb_request* req = + (grpc_grpclb_request*)gpr_zalloc(sizeof(grpc_grpclb_request)); req->has_client_stats = true; req->client_stats.has_timestamp = true; populate_timestamp(gpr_now(GPR_CLOCK_REALTIME), &req->client_stats.timestamp); @@ -123,12 +123,12 @@ grpc_grpclb_request *grpc_grpclb_load_report_request_create_locked( &req->client_stats.num_calls_finished, &req->client_stats.num_calls_finished_with_client_failed_to_send, &req->client_stats.num_calls_finished_known_received, - (grpc_grpclb_dropped_call_counts **)&req->client_stats + (grpc_grpclb_dropped_call_counts**)&req->client_stats .calls_finished_with_drop.arg); return req; } -grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request) { +grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request* request) { size_t encoded_length; pb_ostream_t sizestream; pb_ostream_t outputstream; @@ -145,10 +145,10 @@ grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request) { return slice; } -void grpc_grpclb_request_destroy(grpc_grpclb_request *request) { +void grpc_grpclb_request_destroy(grpc_grpclb_request* request) { if (request->has_client_stats) { - grpc_grpclb_dropped_call_counts *drop_entries = - (grpc_grpclb_dropped_call_counts *) + grpc_grpclb_dropped_call_counts* drop_entries = + (grpc_grpclb_dropped_call_counts*) request->client_stats.calls_finished_with_drop.arg; grpc_grpclb_dropped_call_counts_destroy(drop_entries); } @@ -156,7 +156,7 @@ void grpc_grpclb_request_destroy(grpc_grpclb_request *request) { } typedef grpc_lb_v1_LoadBalanceResponse grpc_grpclb_response; -grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse( +grpc_grpclb_initial_response* grpc_grpclb_initial_response_parse( grpc_slice encoded_grpc_grpclb_response) { pb_istream_t stream = pb_istream_from_buffer(GRPC_SLICE_START_PTR(encoded_grpc_grpclb_response), @@ -165,13 +165,13 @@ grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse( memset(&res, 0, sizeof(grpc_grpclb_response)); if (!pb_decode(&stream, grpc_lb_v1_LoadBalanceResponse_fields, &res)) { gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&stream)); - return NULL; + return nullptr; } - if (!res.has_initial_response) return NULL; + if (!res.has_initial_response) return nullptr; - grpc_grpclb_initial_response *initial_res = - (grpc_grpclb_initial_response *)gpr_malloc( + grpc_grpclb_initial_response* initial_res = + (grpc_grpclb_initial_response*)gpr_malloc( sizeof(grpc_grpclb_initial_response)); memcpy(initial_res, &res.initial_response, sizeof(grpc_grpclb_initial_response)); @@ -179,14 +179,14 @@ grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse( return initial_res; } -grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( +grpc_grpclb_serverlist* grpc_grpclb_response_parse_serverlist( grpc_slice encoded_grpc_grpclb_response) { pb_istream_t stream = pb_istream_from_buffer(GRPC_SLICE_START_PTR(encoded_grpc_grpclb_response), GRPC_SLICE_LENGTH(encoded_grpc_grpclb_response)); pb_istream_t stream_at_start = stream; - grpc_grpclb_serverlist *sl = - (grpc_grpclb_serverlist *)gpr_zalloc(sizeof(grpc_grpclb_serverlist)); + grpc_grpclb_serverlist* sl = + (grpc_grpclb_serverlist*)gpr_zalloc(sizeof(grpc_grpclb_serverlist)); grpc_grpclb_response res; memset(&res, 0, sizeof(grpc_grpclb_response)); // First pass: count number of servers. @@ -196,12 +196,12 @@ grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( if (!status) { gpr_free(sl); gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&stream)); - return NULL; + return nullptr; } // Second pass: populate servers. if (sl->num_servers > 0) { - sl->servers = (grpc_grpclb_server **)gpr_zalloc( - sizeof(grpc_grpclb_server *) * sl->num_servers); + sl->servers = (grpc_grpclb_server**)gpr_zalloc(sizeof(grpc_grpclb_server*) * + sl->num_servers); decode_serverlist_arg decode_arg; memset(&decode_arg, 0, sizeof(decode_arg)); decode_arg.serverlist = sl; @@ -212,7 +212,7 @@ grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( if (!status) { grpc_grpclb_destroy_serverlist(sl); gpr_log(GPR_ERROR, "nanopb error: %s", PB_GET_ERROR(&stream)); - return NULL; + return nullptr; } } if (res.server_list.has_expiration_interval) { @@ -221,8 +221,8 @@ grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( return sl; } -void grpc_grpclb_destroy_serverlist(grpc_grpclb_serverlist *serverlist) { - if (serverlist == NULL) { +void grpc_grpclb_destroy_serverlist(grpc_grpclb_serverlist* serverlist) { + if (serverlist == nullptr) { return; } for (size_t i = 0; i < serverlist->num_servers; i++) { @@ -232,26 +232,26 @@ void grpc_grpclb_destroy_serverlist(grpc_grpclb_serverlist *serverlist) { gpr_free(serverlist); } -grpc_grpclb_serverlist *grpc_grpclb_serverlist_copy( - const grpc_grpclb_serverlist *sl) { - grpc_grpclb_serverlist *copy = - (grpc_grpclb_serverlist *)gpr_zalloc(sizeof(grpc_grpclb_serverlist)); +grpc_grpclb_serverlist* grpc_grpclb_serverlist_copy( + const grpc_grpclb_serverlist* sl) { + grpc_grpclb_serverlist* copy = + (grpc_grpclb_serverlist*)gpr_zalloc(sizeof(grpc_grpclb_serverlist)); copy->num_servers = sl->num_servers; memcpy(©->expiration_interval, &sl->expiration_interval, sizeof(grpc_grpclb_duration)); - copy->servers = (grpc_grpclb_server **)gpr_malloc( - sizeof(grpc_grpclb_server *) * sl->num_servers); + copy->servers = (grpc_grpclb_server**)gpr_malloc(sizeof(grpc_grpclb_server*) * + sl->num_servers); for (size_t i = 0; i < sl->num_servers; i++) { copy->servers[i] = - (grpc_grpclb_server *)gpr_malloc(sizeof(grpc_grpclb_server)); + (grpc_grpclb_server*)gpr_malloc(sizeof(grpc_grpclb_server)); memcpy(copy->servers[i], sl->servers[i], sizeof(grpc_grpclb_server)); } return copy; } -bool grpc_grpclb_serverlist_equals(const grpc_grpclb_serverlist *lhs, - const grpc_grpclb_serverlist *rhs) { - if (lhs == NULL || rhs == NULL) { +bool grpc_grpclb_serverlist_equals(const grpc_grpclb_serverlist* lhs, + const grpc_grpclb_serverlist* rhs) { + if (lhs == nullptr || rhs == nullptr) { return false; } if (lhs->num_servers != rhs->num_servers) { @@ -269,13 +269,13 @@ bool grpc_grpclb_serverlist_equals(const grpc_grpclb_serverlist *lhs, return true; } -bool grpc_grpclb_server_equals(const grpc_grpclb_server *lhs, - const grpc_grpclb_server *rhs) { +bool grpc_grpclb_server_equals(const grpc_grpclb_server* lhs, + const grpc_grpclb_server* rhs) { return memcmp(lhs, rhs, sizeof(grpc_grpclb_server)) == 0; } -int grpc_grpclb_duration_compare(const grpc_grpclb_duration *lhs, - const grpc_grpclb_duration *rhs) { +int grpc_grpclb_duration_compare(const grpc_grpclb_duration* lhs, + const grpc_grpclb_duration* rhs) { GPR_ASSERT(lhs && rhs); if (lhs->has_seconds && rhs->has_seconds) { if (lhs->seconds < rhs->seconds) return -1; @@ -299,13 +299,13 @@ int grpc_grpclb_duration_compare(const grpc_grpclb_duration *lhs, return 0; } -grpc_millis grpc_grpclb_duration_to_millis(grpc_grpclb_duration *duration_pb) { +grpc_millis grpc_grpclb_duration_to_millis(grpc_grpclb_duration* duration_pb) { return (grpc_millis)( (duration_pb->has_seconds ? duration_pb->seconds : 0) * GPR_MS_PER_SEC + (duration_pb->has_nanos ? duration_pb->nanos : 0) / GPR_NS_PER_MS); } void grpc_grpclb_initial_response_destroy( - grpc_grpclb_initial_response *response) { + grpc_grpclb_initial_response* response) { gpr_free(response); } diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h index 56b9c096d0..138012c63a 100644 --- a/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h +++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h @@ -37,59 +37,59 @@ typedef grpc_lb_v1_InitialLoadBalanceResponse grpc_grpclb_initial_response; typedef grpc_lb_v1_Server grpc_grpclb_server; typedef grpc_lb_v1_Duration grpc_grpclb_duration; typedef struct { - grpc_grpclb_server **servers; + grpc_grpclb_server** servers; size_t num_servers; grpc_grpclb_duration expiration_interval; } grpc_grpclb_serverlist; /** Create a request for a gRPC LB service under \a lb_service_name */ -grpc_grpclb_request *grpc_grpclb_request_create(const char *lb_service_name); -grpc_grpclb_request *grpc_grpclb_load_report_request_create_locked( - grpc_grpclb_client_stats *client_stats); +grpc_grpclb_request* grpc_grpclb_request_create(const char* lb_service_name); +grpc_grpclb_request* grpc_grpclb_load_report_request_create_locked( + grpc_grpclb_client_stats* client_stats); /** Protocol Buffers v3-encode \a request */ -grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request *request); +grpc_slice grpc_grpclb_request_encode(const grpc_grpclb_request* request); /** Destroy \a request */ -void grpc_grpclb_request_destroy(grpc_grpclb_request *request); +void grpc_grpclb_request_destroy(grpc_grpclb_request* request); /** Parse (ie, decode) the bytes in \a encoded_grpc_grpclb_response as a \a * grpc_grpclb_initial_response */ -grpc_grpclb_initial_response *grpc_grpclb_initial_response_parse( +grpc_grpclb_initial_response* grpc_grpclb_initial_response_parse( grpc_slice encoded_grpc_grpclb_response); /** Parse the list of servers from an encoded \a grpc_grpclb_response */ -grpc_grpclb_serverlist *grpc_grpclb_response_parse_serverlist( +grpc_grpclb_serverlist* grpc_grpclb_response_parse_serverlist( grpc_slice encoded_grpc_grpclb_response); /** Return a copy of \a sl. The caller is responsible for calling \a * grpc_grpclb_destroy_serverlist on the returned copy. */ -grpc_grpclb_serverlist *grpc_grpclb_serverlist_copy( - const grpc_grpclb_serverlist *sl); +grpc_grpclb_serverlist* grpc_grpclb_serverlist_copy( + const grpc_grpclb_serverlist* sl); -bool grpc_grpclb_serverlist_equals(const grpc_grpclb_serverlist *lhs, - const grpc_grpclb_serverlist *rhs); +bool grpc_grpclb_serverlist_equals(const grpc_grpclb_serverlist* lhs, + const grpc_grpclb_serverlist* rhs); -bool grpc_grpclb_server_equals(const grpc_grpclb_server *lhs, - const grpc_grpclb_server *rhs); +bool grpc_grpclb_server_equals(const grpc_grpclb_server* lhs, + const grpc_grpclb_server* rhs); /** Destroy \a serverlist */ -void grpc_grpclb_destroy_serverlist(grpc_grpclb_serverlist *serverlist); +void grpc_grpclb_destroy_serverlist(grpc_grpclb_serverlist* serverlist); /** Compare \a lhs against \a rhs and return 0 if \a lhs and \a rhs are equal, * < 0 if \a lhs represents a duration shorter than \a rhs and > 0 otherwise */ -int grpc_grpclb_duration_compare(const grpc_grpclb_duration *lhs, - const grpc_grpclb_duration *rhs); +int grpc_grpclb_duration_compare(const grpc_grpclb_duration* lhs, + const grpc_grpclb_duration* rhs); -grpc_millis grpc_grpclb_duration_to_millis(grpc_grpclb_duration *duration_pb); +grpc_millis grpc_grpclb_duration_to_millis(grpc_grpclb_duration* duration_pb); /** Destroy \a initial_response */ void grpc_grpclb_initial_response_destroy( - grpc_grpclb_initial_response *response); + grpc_grpclb_initial_response* response); #ifdef __cplusplus } #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc index 56c261ba34..b15ca82810 100644 --- a/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc +++ b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.cc @@ -20,6 +20,7 @@ #include <grpc/support/alloc.h> +#include "src/core/ext/filters/client_channel/lb_policy/subchannel_list.h" #include "src/core/ext/filters/client_channel/lb_policy_registry.h" #include "src/core/ext/filters/client_channel/subchannel.h" #include "src/core/ext/filters/client_channel/subchannel_index.h" @@ -28,122 +29,91 @@ #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/transport/connectivity_state.h" -grpc_tracer_flag grpc_lb_pick_first_trace = - GRPC_TRACER_INITIALIZER(false, "pick_first"); +grpc_core::TraceFlag grpc_lb_pick_first_trace(false, "pick_first"); typedef struct pending_pick { - struct pending_pick *next; + struct pending_pick* next; uint32_t initial_metadata_flags; - grpc_connected_subchannel **target; - grpc_closure *on_complete; + grpc_connected_subchannel** target; + grpc_closure* on_complete; } pending_pick; typedef struct { /** base policy: must be first */ grpc_lb_policy base; /** all our subchannels */ - grpc_subchannel **subchannels; - grpc_subchannel **new_subchannels; - size_t num_subchannels; - size_t num_new_subchannels; - - grpc_closure connectivity_changed; - - /** remaining members are protected by the combiner */ - - /** the selected channel */ - grpc_connected_subchannel *selected; - - /** the subchannel key for \a selected, or NULL if \a selected not set */ - const grpc_subchannel_key *selected_key; - + grpc_lb_subchannel_list* subchannel_list; + /** latest pending subchannel list */ + grpc_lb_subchannel_list* latest_pending_subchannel_list; + /** selected subchannel in \a subchannel_list */ + grpc_lb_subchannel_data* selected; /** have we started picking? */ bool started_picking; /** are we shut down? */ bool shutdown; - /** are we updating the selected subchannel? */ - bool updating_selected; - /** are we updating the subchannel candidates? */ - bool updating_subchannels; - /** args from the latest update received while already updating, or NULL */ - grpc_lb_policy_args *pending_update_args; - /** which subchannel are we watching? */ - size_t checking_subchannel; - /** what is the connectivity of that channel? */ - grpc_connectivity_state checking_connectivity; /** list of picks that are waiting on connectivity */ - pending_pick *pending_picks; - + pending_pick* pending_picks; /** our connectivity state tracker */ grpc_connectivity_state_tracker state_tracker; } pick_first_lb_policy; -static void pf_destroy(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; - GPR_ASSERT(p->pending_picks == NULL); - for (size_t i = 0; i < p->num_subchannels; i++) { - GRPC_SUBCHANNEL_UNREF(exec_ctx, p->subchannels[i], "pick_first_destroy"); - } - if (p->selected != NULL) { - GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, p->selected, - "picked_first_destroy"); - } +static void pf_destroy(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; + GPR_ASSERT(p->subchannel_list == nullptr); + GPR_ASSERT(p->latest_pending_subchannel_list == nullptr); + GPR_ASSERT(p->pending_picks == nullptr); grpc_connectivity_state_destroy(exec_ctx, &p->state_tracker); - grpc_subchannel_index_unref(); - if (p->pending_update_args != NULL) { - grpc_channel_args_destroy(exec_ctx, p->pending_update_args->args); - gpr_free(p->pending_update_args); - } - gpr_free(p->subchannels); - gpr_free(p->new_subchannels); gpr_free(p); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, "Pick First %p destroyed.", (void *)p); + grpc_subchannel_index_unref(); + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_DEBUG, "Pick First %p destroyed.", (void*)p); } } -static void fail_pending_picks_for_shutdown(grpc_exec_ctx *exec_ctx, - pick_first_lb_policy *p) { - pending_pick *pp; - while ((pp = p->pending_picks) != NULL) { +static void shutdown_locked(grpc_exec_ctx* exec_ctx, pick_first_lb_policy* p, + grpc_error* error) { + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_DEBUG, "Pick First %p Shutting down", p); + } + p->shutdown = true; + pending_pick* pp; + while ((pp = p->pending_picks) != nullptr) { p->pending_picks = pp->next; - *pp->target = NULL; - GRPC_CLOSURE_SCHED( - exec_ctx, pp->on_complete, - GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown")); + *pp->target = nullptr; + GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_REF(error)); gpr_free(pp); } + grpc_connectivity_state_set(exec_ctx, &p->state_tracker, + GRPC_CHANNEL_SHUTDOWN, GRPC_ERROR_REF(error), + "shutdown"); + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "pf_shutdown"); + p->subchannel_list = nullptr; + } + if (p->latest_pending_subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->latest_pending_subchannel_list, "pf_shutdown"); + p->latest_pending_subchannel_list = nullptr; + } + GRPC_ERROR_UNREF(error); } -static void pf_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; - p->shutdown = true; - fail_pending_picks_for_shutdown(exec_ctx, p); - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, - GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel shutdown"), "shutdown"); - /* cancel subscription */ - if (p->selected != NULL) { - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, p->selected, NULL, NULL, &p->connectivity_changed); - } else if (p->num_subchannels > 0 && p->started_picking) { - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], NULL, NULL, - &p->connectivity_changed); - } +static void pf_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + shutdown_locked(exec_ctx, (pick_first_lb_policy*)pol, + GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel shutdown")); } -static void pf_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_connected_subchannel **target, - grpc_error *error) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; - pending_pick *pp; - pp = p->pending_picks; - p->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; +static void pf_cancel_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_connected_subchannel** target, + grpc_error* error) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; + pending_pick* pp = p->pending_picks; + p->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if (pp->target == target) { - *target = NULL; + *target = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Pick Cancelled", &error, 1)); @@ -157,16 +127,15 @@ static void pf_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, GRPC_ERROR_UNREF(error); } -static void pf_cancel_picks_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, +static void pf_cancel_picks_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; - pending_pick *pp; - pp = p->pending_picks; - p->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; + grpc_error* error) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; + pending_pick* pp = p->pending_picks; + p->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if ((pp->initial_metadata_flags & initial_metadata_flags_mask) == initial_metadata_flags_eq) { GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, @@ -182,47 +151,43 @@ static void pf_cancel_picks_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, GRPC_ERROR_UNREF(error); } -static void start_picking_locked(grpc_exec_ctx *exec_ctx, - pick_first_lb_policy *p) { +static void start_picking_locked(grpc_exec_ctx* exec_ctx, + pick_first_lb_policy* p) { p->started_picking = true; - if (p->subchannels != NULL) { - GPR_ASSERT(p->num_subchannels > 0); - p->checking_subchannel = 0; - p->checking_connectivity = GRPC_CHANNEL_IDLE; - GRPC_LB_POLICY_WEAK_REF(&p->base, "pick_first_connectivity"); - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], - p->base.interested_parties, &p->checking_connectivity, - &p->connectivity_changed); + if (p->subchannel_list != nullptr && + p->subchannel_list->num_subchannels > 0) { + p->subchannel_list->checking_subchannel = 0; + grpc_lb_subchannel_list_ref_for_connectivity_watch( + p->subchannel_list, "connectivity_watch+start_picking"); + grpc_lb_subchannel_data_start_connectivity_watch( + exec_ctx, &p->subchannel_list->subchannels[0]); } } -static void pf_exit_idle_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; +static void pf_exit_idle_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; if (!p->started_picking) { start_picking_locked(exec_ctx, p); } } -static int pf_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, void **user_data, - grpc_closure *on_complete) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; - pending_pick *pp; - - /* Check atomically for a selected channel */ - if (p->selected != NULL) { - *target = GRPC_CONNECTED_SUBCHANNEL_REF(p->selected, "picked"); +static int pf_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, void** user_data, + grpc_closure* on_complete) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; + // If we have a selected subchannel already, return synchronously. + if (p->selected != nullptr) { + *target = GRPC_CONNECTED_SUBCHANNEL_REF(p->selected->connected_subchannel, + "picked"); return 1; } - - /* No subchannel selected yet, so try again */ + // No subchannel selected yet, so handle asynchronously. if (!p->started_picking) { start_picking_locked(exec_ctx, p); } - pp = (pending_pick *)gpr_malloc(sizeof(*pp)); + pending_pick* pp = (pending_pick*)gpr_malloc(sizeof(*pp)); pp->next = p->pending_picks; pp->target = target; pp->initial_metadata_flags = pick_args->initial_metadata_flags; @@ -231,80 +196,54 @@ static int pf_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, return 0; } -static void destroy_subchannels_locked(grpc_exec_ctx *exec_ctx, - pick_first_lb_policy *p) { - size_t num_subchannels = p->num_subchannels; - grpc_subchannel **subchannels = p->subchannels; - - p->num_subchannels = 0; - p->subchannels = NULL; - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "destroy_subchannels"); - - for (size_t i = 0; i < num_subchannels; i++) { - GRPC_SUBCHANNEL_UNREF(exec_ctx, subchannels[i], "pick_first"); +static void destroy_unselected_subchannels_locked(grpc_exec_ctx* exec_ctx, + pick_first_lb_policy* p) { + for (size_t i = 0; i < p->subchannel_list->num_subchannels; ++i) { + grpc_lb_subchannel_data* sd = &p->subchannel_list->subchannels[i]; + if (p->selected != sd) { + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, + "selected_different_subchannel"); + } } - gpr_free(subchannels); } static grpc_connectivity_state pf_check_connectivity_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, grpc_error **error) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; + grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, grpc_error** error) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; return grpc_connectivity_state_get(&p->state_tracker, error); } -static void pf_notify_on_state_change_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol, - grpc_connectivity_state *current, - grpc_closure *notify) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; +static void pf_notify_on_state_change_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* pol, + grpc_connectivity_state* current, + grpc_closure* notify) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; grpc_connectivity_state_notify_on_state_change(exec_ctx, &p->state_tracker, current, notify); } -static void pf_ping_one_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_closure *closure) { - pick_first_lb_policy *p = (pick_first_lb_policy *)pol; +static void pf_ping_one_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_closure* closure) { + pick_first_lb_policy* p = (pick_first_lb_policy*)pol; if (p->selected) { - grpc_connected_subchannel_ping(exec_ctx, p->selected, closure); + grpc_connected_subchannel_ping(exec_ctx, p->selected->connected_subchannel, + closure); } else { GRPC_CLOSURE_SCHED(exec_ctx, closure, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Not connected")); } } -/* unsubscribe all subchannels */ -static void stop_connectivity_watchers(grpc_exec_ctx *exec_ctx, - pick_first_lb_policy *p) { - if (p->num_subchannels > 0) { - GPR_ASSERT(p->selected == NULL); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, "Pick First %p unsubscribing from subchannel %p", - (void *)p, (void *)p->subchannels[p->checking_subchannel]); - } - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], NULL, NULL, - &p->connectivity_changed); - p->updating_subchannels = true; - } else if (p->selected != NULL) { - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, - "Pick First %p unsubscribing from selected subchannel %p", - (void *)p, (void *)p->selected); - } - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, p->selected, NULL, NULL, &p->connectivity_changed); - p->updating_selected = true; - } -} +static void pf_connectivity_changed_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); -/* true upon success */ -static void pf_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_args *args) { - pick_first_lb_policy *p = (pick_first_lb_policy *)policy; - const grpc_arg *arg = +static void pf_update_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_args* args) { + pick_first_lb_policy* p = (pick_first_lb_policy*)policy; + const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES); - if (arg == NULL || arg->type != GRPC_ARG_POINTER) { - if (p->subchannels == NULL) { + if (arg == nullptr || arg->type != GRPC_ARG_POINTER) { + if (p->subchannel_list == nullptr) { // If we don't have a current subchannel list, go into TRANSIENT FAILURE. grpc_connectivity_state_set( exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, @@ -315,349 +254,299 @@ static void pf_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, gpr_log(GPR_ERROR, "No valid LB addresses channel arg for Pick First %p update, " "ignoring.", - (void *)p); + (void*)p); } return; } - const grpc_lb_addresses *addresses = - (const grpc_lb_addresses *)arg->value.pointer.p; - if (addresses->num_addresses == 0) { - // Empty update. Unsubscribe from all current subchannels and put the - // channel in TRANSIENT_FAILURE. + const grpc_lb_addresses* addresses = + (const grpc_lb_addresses*)arg->value.pointer.p; + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_INFO, "Pick First %p received update with %lu addresses", + (void*)p, (unsigned long)addresses->num_addresses); + } + grpc_lb_subchannel_list* subchannel_list = grpc_lb_subchannel_list_create( + exec_ctx, &p->base, &grpc_lb_pick_first_trace, addresses, args, + pf_connectivity_changed_locked); + if (subchannel_list->num_subchannels == 0) { + // Empty update or no valid subchannels. Unsubscribe from all current + // subchannels and put the channel in TRANSIENT_FAILURE. grpc_connectivity_state_set( exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Empty update"), "pf_update_empty"); - stop_connectivity_watchers(exec_ctx, p); + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "sl_shutdown_empty_update"); + } + p->subchannel_list = subchannel_list; // Empty list. + p->selected = nullptr; return; } - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_INFO, "Pick First %p received update with %lu addresses", - (void *)p, (unsigned long)addresses->num_addresses); - } - grpc_subchannel_args *sc_args = (grpc_subchannel_args *)gpr_zalloc( - sizeof(*sc_args) * addresses->num_addresses); - /* We remove the following keys in order for subchannel keys belonging to - * subchannels point to the same address to match. */ - static const char *keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS, - GRPC_ARG_LB_ADDRESSES}; - size_t sc_args_count = 0; - - /* Create list of subchannel args for new addresses in \a args. */ - for (size_t i = 0; i < addresses->num_addresses; i++) { - // If there were any balancer, we would have chosen grpclb policy instead. - GPR_ASSERT(!addresses->addresses[i].is_balancer); - if (addresses->addresses[i].user_data != NULL) { - gpr_log(GPR_ERROR, - "This LB policy doesn't support user data. It will be ignored"); + if (p->selected == nullptr) { + // We don't yet have a selected subchannel, so replace the current + // subchannel list immediately. + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "pf_update_before_selected"); } - grpc_arg addr_arg = - grpc_create_subchannel_address_arg(&addresses->addresses[i].address); - grpc_channel_args *new_args = grpc_channel_args_copy_and_add_and_remove( - args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &addr_arg, - 1); - gpr_free(addr_arg.value.string); - sc_args[sc_args_count++].args = new_args; - } - - /* Check if p->selected is amongst them. If so, we are done. */ - if (p->selected != NULL) { - GPR_ASSERT(p->selected_key != NULL); - for (size_t i = 0; i < sc_args_count; i++) { - grpc_subchannel_key *ith_sc_key = grpc_subchannel_key_create(&sc_args[i]); - const bool found_selected = - grpc_subchannel_key_compare(p->selected_key, ith_sc_key) == 0; - grpc_subchannel_key_destroy(exec_ctx, ith_sc_key); - if (found_selected) { + p->subchannel_list = subchannel_list; + } else { + // We do have a selected subchannel. + // Check if it's present in the new list. If so, we're done. + for (size_t i = 0; i < subchannel_list->num_subchannels; ++i) { + grpc_lb_subchannel_data* sd = &subchannel_list->subchannels[i]; + if (sd->subchannel == p->selected->subchannel) { // The currently selected subchannel is in the update: we are done. - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { + if (grpc_lb_pick_first_trace.enabled()) { gpr_log(GPR_INFO, - "Pick First %p found already selected subchannel %p amongst " - "updates. Update done.", - (void *)p, (void *)p->selected); + "Pick First %p found already selected subchannel %p " + "at update index %" PRIuPTR " of %" PRIuPTR "; update done", + p, p->selected->subchannel, i, + subchannel_list->num_subchannels); + } + if (p->selected->connected_subchannel != nullptr) { + sd->connected_subchannel = GRPC_CONNECTED_SUBCHANNEL_REF( + p->selected->connected_subchannel, "pf_update_includes_selected"); + } + p->selected = sd; + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->subchannel_list, "pf_update_includes_selected"); } - for (size_t j = 0; j < sc_args_count; j++) { - grpc_channel_args_destroy(exec_ctx, - (grpc_channel_args *)sc_args[j].args); + p->subchannel_list = subchannel_list; + destroy_unselected_subchannels_locked(exec_ctx, p); + grpc_lb_subchannel_list_ref_for_connectivity_watch( + subchannel_list, "connectivity_watch+replace_selected"); + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + // If there was a previously pending update (which may or may + // not have contained the currently selected subchannel), drop + // it, so that it doesn't override what we've done here. + if (p->latest_pending_subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->latest_pending_subchannel_list, + "pf_update_includes_selected+outdated"); + p->latest_pending_subchannel_list = nullptr; } - gpr_free(sc_args); return; } } - } - // We only check for already running updates here because if the previous - // steps were successful, the update can be considered done without any - // interference (ie, no callbacks were scheduled). - if (p->updating_selected || p->updating_subchannels) { - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_INFO, - "Update already in progress for pick first %p. Deferring update.", - (void *)p); - } - if (p->pending_update_args != NULL) { - grpc_channel_args_destroy(exec_ctx, p->pending_update_args->args); - gpr_free(p->pending_update_args); - } - p->pending_update_args = - (grpc_lb_policy_args *)gpr_zalloc(sizeof(*p->pending_update_args)); - p->pending_update_args->client_channel_factory = - args->client_channel_factory; - p->pending_update_args->args = grpc_channel_args_copy(args->args); - p->pending_update_args->combiner = args->combiner; - return; - } - /* Create the subchannels for the new subchannel args/addresses. */ - grpc_subchannel **new_subchannels = - (grpc_subchannel **)gpr_zalloc(sizeof(*new_subchannels) * sc_args_count); - size_t num_new_subchannels = 0; - for (size_t i = 0; i < sc_args_count; i++) { - grpc_subchannel *subchannel = grpc_client_channel_factory_create_subchannel( - exec_ctx, args->client_channel_factory, &sc_args[i]); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - char *address_uri = - grpc_sockaddr_to_uri(&addresses->addresses[i].address); - gpr_log(GPR_INFO, - "Pick First %p created subchannel %p for address uri %s", - (void *)p, (void *)subchannel, address_uri); - gpr_free(address_uri); + // Not keeping the previous selected subchannel, so set the latest + // pending subchannel list to the new subchannel list. We will wait + // for it to report READY before swapping it into the current + // subchannel list. + if (p->latest_pending_subchannel_list != nullptr) { + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_DEBUG, + "Pick First %p Shutting down latest pending subchannel list " + "%p, about to be replaced by newer latest %p", + (void*)p, (void*)p->latest_pending_subchannel_list, + (void*)subchannel_list); + } + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->latest_pending_subchannel_list, + "sl_outdated_dont_smash"); } - grpc_channel_args_destroy(exec_ctx, (grpc_channel_args *)sc_args[i].args); - if (subchannel != NULL) new_subchannels[num_new_subchannels++] = subchannel; - } - gpr_free(sc_args); - if (num_new_subchannels == 0) { - gpr_free(new_subchannels); - // Empty update. Unsubscribe from all current subchannels and put the - // channel in TRANSIENT_FAILURE. - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, - GRPC_ERROR_CREATE_FROM_STATIC_STRING("No valid addresses in update"), - "pf_update_no_valid_addresses"); - stop_connectivity_watchers(exec_ctx, p); - return; + p->latest_pending_subchannel_list = subchannel_list; } - - /* Destroy the current subchannels. Repurpose pf_shutdown/destroy. */ - stop_connectivity_watchers(exec_ctx, p); - - /* Save new subchannels. The switch over will happen in - * pf_connectivity_changed_locked */ - if (p->updating_selected || p->updating_subchannels) { - p->num_new_subchannels = num_new_subchannels; - p->new_subchannels = new_subchannels; - } else { /* nothing is updating. Get things moving from here */ - p->num_subchannels = num_new_subchannels; - p->subchannels = new_subchannels; - p->new_subchannels = NULL; - p->num_new_subchannels = 0; - if (p->started_picking) { - p->checking_subchannel = 0; - p->checking_connectivity = GRPC_CHANNEL_IDLE; - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], - p->base.interested_parties, &p->checking_connectivity, - &p->connectivity_changed); - } + // If we've started picking, start trying to connect to the first + // subchannel in the new list. + if (p->started_picking) { + grpc_lb_subchannel_list_ref_for_connectivity_watch( + subchannel_list, "connectivity_watch+update"); + grpc_lb_subchannel_data_start_connectivity_watch( + exec_ctx, &subchannel_list->subchannels[0]); } } -static void pf_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - pick_first_lb_policy *p = (pick_first_lb_policy *)arg; - grpc_subchannel *selected_subchannel; - pending_pick *pp; - - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log( - GPR_DEBUG, - "Pick First %p connectivity changed. Updating selected: %d; Updating " - "subchannels: %d; Checking %lu index (%lu total); State: %d; ", - (void *)p, p->updating_selected, p->updating_subchannels, - (unsigned long)p->checking_subchannel, - (unsigned long)p->num_subchannels, p->checking_connectivity); - } - bool restart = false; - if (p->updating_selected && error != GRPC_ERROR_NONE) { - /* Captured the unsubscription for p->selected */ - GPR_ASSERT(p->selected != NULL); - GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, p->selected, - "pf_update_connectivity"); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, "Pick First %p unreffing selected subchannel %p", - (void *)p, (void *)p->selected); - } - p->updating_selected = false; - if (p->num_new_subchannels == 0) { - p->selected = NULL; - return; - } - restart = true; - } - if (p->updating_subchannels && error != GRPC_ERROR_NONE) { - /* Captured the unsubscription for the checking subchannel */ - GPR_ASSERT(p->selected == NULL); - for (size_t i = 0; i < p->num_subchannels; i++) { - GRPC_SUBCHANNEL_UNREF(exec_ctx, p->subchannels[i], - "pf_update_connectivity"); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, "Pick First %p unreffing subchannel %p", (void *)p, - (void *)p->subchannels[i]); - } - } - gpr_free(p->subchannels); - p->subchannels = NULL; - p->num_subchannels = 0; - p->updating_subchannels = false; - if (p->num_new_subchannels == 0) return; - restart = true; +static void pf_connectivity_changed_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_lb_subchannel_data* sd = (grpc_lb_subchannel_data*)arg; + pick_first_lb_policy* p = (pick_first_lb_policy*)sd->subchannel_list->policy; + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_DEBUG, + "Pick First %p connectivity changed for subchannel %p (%" PRIuPTR + " of %" PRIuPTR + "), subchannel_list %p: state=%s p->shutdown=%d " + "sd->subchannel_list->shutting_down=%d error=%s", + (void*)p, (void*)sd->subchannel, + sd->subchannel_list->checking_subchannel, + sd->subchannel_list->num_subchannels, (void*)sd->subchannel_list, + grpc_connectivity_state_name(sd->pending_connectivity_state_unsafe), + p->shutdown, sd->subchannel_list->shutting_down, + grpc_error_string(error)); } - if (restart) { - p->selected = NULL; - p->selected_key = NULL; - GPR_ASSERT(p->new_subchannels != NULL); - GPR_ASSERT(p->num_new_subchannels > 0); - p->num_subchannels = p->num_new_subchannels; - p->subchannels = p->new_subchannels; - p->num_new_subchannels = 0; - p->new_subchannels = NULL; - if (p->started_picking) { - /* If we were picking, continue to do so over the new subchannels, - * starting from the 0th index. */ - p->checking_subchannel = 0; - p->checking_connectivity = GRPC_CHANNEL_IDLE; - /* reuses the weak ref from start_picking_locked */ - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], - p->base.interested_parties, &p->checking_connectivity, - &p->connectivity_changed); - } - if (p->pending_update_args != NULL) { - const grpc_lb_policy_args *args = p->pending_update_args; - p->pending_update_args = NULL; - pf_update_locked(exec_ctx, &p->base, args); - } + // If the policy is shutting down, unref and return. + if (p->shutdown) { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, "pf_shutdown"); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "pf_shutdown"); return; } - GRPC_ERROR_REF(error); - if (p->shutdown) { - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pick_first_connectivity"); - GRPC_ERROR_UNREF(error); + // If the subchannel list is shutting down, stop watching. + if (sd->subchannel_list->shutting_down || error == GRPC_ERROR_CANCELLED) { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, "pf_sl_shutdown"); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "pf_sl_shutdown"); return; - } else if (p->selected != NULL) { - if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) { - /* if the selected channel goes bad, we're done */ - p->checking_connectivity = GRPC_CHANNEL_SHUTDOWN; - } - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - p->checking_connectivity, GRPC_ERROR_REF(error), - "selected_changed"); - if (p->checking_connectivity != GRPC_CHANNEL_SHUTDOWN) { - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, p->selected, p->base.interested_parties, - &p->checking_connectivity, &p->connectivity_changed); + } + // If we're still here, the notification must be for a subchannel in + // either the current or latest pending subchannel lists. + GPR_ASSERT(sd->subchannel_list == p->subchannel_list || + sd->subchannel_list == p->latest_pending_subchannel_list); + // Update state. + sd->curr_connectivity_state = sd->pending_connectivity_state_unsafe; + // Handle updates for the currently selected subchannel. + if (p->selected == sd) { + // If the new state is anything other than READY and there is a + // pending update, switch to the pending update. + if (sd->curr_connectivity_state != GRPC_CHANNEL_READY && + p->latest_pending_subchannel_list != nullptr) { + p->selected = nullptr; + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->subchannel_list, "selected_not_ready+switch_to_update"); + p->subchannel_list = p->latest_pending_subchannel_list; + p->latest_pending_subchannel_list = nullptr; + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "selected_not_ready+switch_to_update"); } else { - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pick_first_connectivity"); + if (sd->curr_connectivity_state == GRPC_CHANNEL_TRANSIENT_FAILURE) { + /* if the selected channel goes bad, we're done */ + sd->curr_connectivity_state = GRPC_CHANNEL_SHUTDOWN; + } + grpc_connectivity_state_set(exec_ctx, &p->state_tracker, + sd->curr_connectivity_state, + GRPC_ERROR_REF(error), "selected_changed"); + if (sd->curr_connectivity_state != GRPC_CHANNEL_SHUTDOWN) { + // Renew notification. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + } else { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "pf_selected_shutdown"); + shutdown_locked(exec_ctx, p, GRPC_ERROR_REF(error)); + } } - } else { - loop: - switch (p->checking_connectivity) { - case GRPC_CHANNEL_INIT: - GPR_UNREACHABLE_CODE(return ); - case GRPC_CHANNEL_READY: - grpc_connectivity_state_set(exec_ctx, &p->state_tracker, - GRPC_CHANNEL_READY, GRPC_ERROR_NONE, - "connecting_ready"); - selected_subchannel = p->subchannels[p->checking_subchannel]; - p->selected = GRPC_CONNECTED_SUBCHANNEL_REF( - grpc_subchannel_get_connected_subchannel(selected_subchannel), - "picked_first"); - - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { + return; + } + // If we get here, there are two possible cases: + // 1. We do not currently have a selected subchannel, and the update is + // for a subchannel in p->subchannel_list that we're trying to + // connect to. The goal here is to find a subchannel that we can + // select. + // 2. We do currently have a selected subchannel, and the update is + // for a subchannel in p->latest_pending_subchannel_list. The + // goal here is to find a subchannel from the update that we can + // select in place of the current one. + switch (sd->curr_connectivity_state) { + case GRPC_CHANNEL_READY: { + // Case 2. Promote p->latest_pending_subchannel_list to + // p->subchannel_list. + if (sd->subchannel_list == p->latest_pending_subchannel_list) { + GPR_ASSERT(p->subchannel_list != nullptr); + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "finish_update"); + p->subchannel_list = p->latest_pending_subchannel_list; + p->latest_pending_subchannel_list = nullptr; + } + // Cases 1 and 2. + grpc_connectivity_state_set(exec_ctx, &p->state_tracker, + GRPC_CHANNEL_READY, GRPC_ERROR_NONE, + "connecting_ready"); + sd->connected_subchannel = GRPC_CONNECTED_SUBCHANNEL_REF( + grpc_subchannel_get_connected_subchannel(sd->subchannel), + "connected"); + p->selected = sd; + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_INFO, "Pick First %p selected subchannel %p", (void*)p, + (void*)sd->subchannel); + } + // Drop all other subchannels, since we are now connected. + destroy_unselected_subchannels_locked(exec_ctx, p); + // Update any calls that were waiting for a pick. + pending_pick* pp; + while ((pp = p->pending_picks)) { + p->pending_picks = pp->next; + *pp->target = GRPC_CONNECTED_SUBCHANNEL_REF( + p->selected->connected_subchannel, "picked"); + if (grpc_lb_pick_first_trace.enabled()) { gpr_log(GPR_INFO, - "Pick First %p selected subchannel %p (connected %p)", - (void *)p, (void *)selected_subchannel, (void *)p->selected); - } - p->selected_key = grpc_subchannel_get_key(selected_subchannel); - /* drop the pick list: we are connected now */ - GRPC_LB_POLICY_WEAK_REF(&p->base, "destroy_subchannels"); - destroy_subchannels_locked(exec_ctx, p); - /* update any calls that were waiting for a pick */ - while ((pp = p->pending_picks)) { - p->pending_picks = pp->next; - *pp->target = GRPC_CONNECTED_SUBCHANNEL_REF(p->selected, "picked"); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_INFO, - "Servicing pending pick with selected subchannel %p", - (void *)p->selected); - } - GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_NONE); - gpr_free(pp); + "Servicing pending pick with selected subchannel %p", + (void*)p->selected); } - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, p->selected, p->base.interested_parties, - &p->checking_connectivity, &p->connectivity_changed); - break; - case GRPC_CHANNEL_TRANSIENT_FAILURE: - p->checking_subchannel = - (p->checking_subchannel + 1) % p->num_subchannels; - if (p->checking_subchannel == 0) { - /* only trigger transient failure when we've tried all alternatives - */ - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, - GRPC_ERROR_REF(error), "connecting_transient_failure"); - } - GRPC_ERROR_UNREF(error); - p->checking_connectivity = grpc_subchannel_check_connectivity( - p->subchannels[p->checking_subchannel], &error); - if (p->checking_connectivity == GRPC_CHANNEL_TRANSIENT_FAILURE) { - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], - p->base.interested_parties, &p->checking_connectivity, - &p->connectivity_changed); - } else { - goto loop; - } - break; - case GRPC_CHANNEL_CONNECTING: - case GRPC_CHANNEL_IDLE: + GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_NONE); + gpr_free(pp); + } + // Renew notification. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + break; + } + case GRPC_CHANNEL_TRANSIENT_FAILURE: { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + do { + sd->subchannel_list->checking_subchannel = + (sd->subchannel_list->checking_subchannel + 1) % + sd->subchannel_list->num_subchannels; + sd = &sd->subchannel_list + ->subchannels[sd->subchannel_list->checking_subchannel]; + } while (sd->subchannel == nullptr); + // Case 1: Only set state to TRANSIENT_FAILURE if we've tried + // all subchannels. + if (sd->subchannel_list->checking_subchannel == 0 && + sd->subchannel_list == p->subchannel_list) { + grpc_connectivity_state_set( + exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "connecting_transient_failure"); + } + // Reuses the connectivity refs from the previous watch. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + break; + } + case GRPC_CHANNEL_CONNECTING: + case GRPC_CHANNEL_IDLE: { + // Only update connectivity state in case 1. + if (sd->subchannel_list == p->subchannel_list) { grpc_connectivity_state_set( exec_ctx, &p->state_tracker, GRPC_CHANNEL_CONNECTING, GRPC_ERROR_REF(error), "connecting_changed"); - grpc_subchannel_notify_on_state_change( - exec_ctx, p->subchannels[p->checking_subchannel], - p->base.interested_parties, &p->checking_connectivity, - &p->connectivity_changed); + } + // Renew notification. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + break; + } + case GRPC_CHANNEL_SHUTDOWN: { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, + "pf_candidate_shutdown"); + // Advance to next subchannel and check its state. + grpc_lb_subchannel_data* original_sd = sd; + do { + sd->subchannel_list->checking_subchannel = + (sd->subchannel_list->checking_subchannel + 1) % + sd->subchannel_list->num_subchannels; + sd = &sd->subchannel_list + ->subchannels[sd->subchannel_list->checking_subchannel]; + } while (sd->subchannel == nullptr && sd != original_sd); + if (sd == original_sd) { + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "pf_candidate_shutdown"); + shutdown_locked(exec_ctx, p, + GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( + "Pick first exhausted channels", &error, 1)); break; - case GRPC_CHANNEL_SHUTDOWN: - p->num_subchannels--; - GPR_SWAP(grpc_subchannel *, p->subchannels[p->checking_subchannel], - p->subchannels[p->num_subchannels]); - GRPC_SUBCHANNEL_UNREF(exec_ctx, p->subchannels[p->num_subchannels], - "pick_first"); - if (p->num_subchannels == 0) { - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, - GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( - "Pick first exhausted channels", &error, 1), - "no_more_channels"); - fail_pending_picks_for_shutdown(exec_ctx, p); - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, - "pick_first_connectivity"); - } else { - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, - GRPC_ERROR_REF(error), "subchannel_failed"); - p->checking_subchannel %= p->num_subchannels; - GRPC_ERROR_UNREF(error); - p->checking_connectivity = grpc_subchannel_check_connectivity( - p->subchannels[p->checking_subchannel], &error); - goto loop; - } + } + if (sd->subchannel_list == p->subchannel_list) { + grpc_connectivity_state_set(exec_ctx, &p->state_tracker, + GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(error), "subchannel_failed"); + } + // Reuses the connectivity refs from the previous watch. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); + break; } } - - GRPC_ERROR_UNREF(error); } static const grpc_lb_policy_vtable pick_first_lb_policy_vtable = { @@ -672,23 +561,21 @@ static const grpc_lb_policy_vtable pick_first_lb_policy_vtable = { pf_notify_on_state_change_locked, pf_update_locked}; -static void pick_first_factory_ref(grpc_lb_policy_factory *factory) {} +static void pick_first_factory_ref(grpc_lb_policy_factory* factory) {} -static void pick_first_factory_unref(grpc_lb_policy_factory *factory) {} +static void pick_first_factory_unref(grpc_lb_policy_factory* factory) {} -static grpc_lb_policy *create_pick_first(grpc_exec_ctx *exec_ctx, - grpc_lb_policy_factory *factory, - grpc_lb_policy_args *args) { - GPR_ASSERT(args->client_channel_factory != NULL); - pick_first_lb_policy *p = (pick_first_lb_policy *)gpr_zalloc(sizeof(*p)); - if (GRPC_TRACER_ON(grpc_lb_pick_first_trace)) { - gpr_log(GPR_DEBUG, "Pick First %p created.", (void *)p); +static grpc_lb_policy* create_pick_first(grpc_exec_ctx* exec_ctx, + grpc_lb_policy_factory* factory, + grpc_lb_policy_args* args) { + GPR_ASSERT(args->client_channel_factory != nullptr); + pick_first_lb_policy* p = (pick_first_lb_policy*)gpr_zalloc(sizeof(*p)); + if (grpc_lb_pick_first_trace.enabled()) { + gpr_log(GPR_DEBUG, "Pick First %p created.", (void*)p); } pf_update_locked(exec_ctx, &p->base, args); grpc_lb_policy_init(&p->base, &pick_first_lb_policy_vtable, args->combiner); grpc_subchannel_index_ref(); - GRPC_CLOSURE_INIT(&p->connectivity_changed, pf_connectivity_changed_locked, p, - grpc_combiner_scheduler(args->combiner)); return &p->base; } @@ -699,7 +586,7 @@ static const grpc_lb_policy_factory_vtable pick_first_factory_vtable = { static grpc_lb_policy_factory pick_first_lb_policy_factory = { &pick_first_factory_vtable}; -static grpc_lb_policy_factory *pick_first_lb_factory_create() { +static grpc_lb_policy_factory* pick_first_lb_factory_create() { return &pick_first_lb_policy_factory; } @@ -707,7 +594,6 @@ static grpc_lb_policy_factory *pick_first_lb_factory_create() { extern "C" void grpc_lb_policy_pick_first_init() { grpc_register_lb_policy(pick_first_lb_factory_create()); - grpc_register_tracer(&grpc_lb_pick_first_trace); } extern "C" void grpc_lb_policy_pick_first_shutdown() {} diff --git a/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc index de163f6300..5e54d1fc77 100644 --- a/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc +++ b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.cc @@ -28,6 +28,7 @@ #include <grpc/support/alloc.h> +#include "src/core/ext/filters/client_channel/lb_policy/subchannel_list.h" #include "src/core/ext/filters/client_channel/lb_policy_registry.h" #include "src/core/ext/filters/client_channel/subchannel.h" #include "src/core/ext/filters/client_channel/subchannel_index.h" @@ -38,19 +39,18 @@ #include "src/core/lib/transport/connectivity_state.h" #include "src/core/lib/transport/static_metadata.h" -grpc_tracer_flag grpc_lb_round_robin_trace = - GRPC_TRACER_INITIALIZER(false, "round_robin"); +grpc_core::TraceFlag grpc_lb_round_robin_trace(false, "round_robin"); /** List of entities waiting for a pick. * * Once a pick is available, \a target is updated and \a on_complete called. */ typedef struct pending_pick { - struct pending_pick *next; + struct pending_pick* next; /* output argument where to store the pick()ed user_data. It'll be NULL if no * such data is present or there's an error (the definite test for errors is * \a target being NULL). */ - void **user_data; + void** user_data; /* bitmask passed to pick() and used for selective cancelling. See * grpc_lb_policy_cancel_picks() */ @@ -58,25 +58,24 @@ typedef struct pending_pick { /* output argument where to store the pick()ed connected subchannel, or NULL * upon error. */ - grpc_connected_subchannel **target; + grpc_connected_subchannel** target; /* to be invoked once the pick() has completed (regardless of success) */ - grpc_closure *on_complete; + grpc_closure* on_complete; } pending_pick; -typedef struct rr_subchannel_list rr_subchannel_list; typedef struct round_robin_lb_policy { /** base policy: must be first */ grpc_lb_policy base; - rr_subchannel_list *subchannel_list; + grpc_lb_subchannel_list* subchannel_list; /** have we started picking? */ bool started_picking; /** are we shutting down? */ bool shutdown; /** List of picks that are waiting on connectivity */ - pending_pick *pending_picks; + pending_pick* pending_picks; /** our connectivity state tracker */ grpc_connectivity_state_tracker state_tracker; @@ -89,157 +88,9 @@ typedef struct round_robin_lb_policy { * lists if they equal \a latest_pending_subchannel_list. In other words, * racing callbacks that reference outdated subchannel lists won't perform any * update. */ - rr_subchannel_list *latest_pending_subchannel_list; + grpc_lb_subchannel_list* latest_pending_subchannel_list; } round_robin_lb_policy; -typedef struct { - /** backpointer to owning subchannel list */ - rr_subchannel_list *subchannel_list; - /** subchannel itself */ - grpc_subchannel *subchannel; - /** notification that connectivity has changed on subchannel */ - grpc_closure connectivity_changed_closure; - /** last observed connectivity. Not updated by - * \a grpc_subchannel_notify_on_state_change. Used to determine the previous - * state while processing the new state in \a rr_connectivity_changed */ - grpc_connectivity_state prev_connectivity_state; - /** current connectivity state. Updated by \a - * grpc_subchannel_notify_on_state_change */ - grpc_connectivity_state curr_connectivity_state; - /** connectivity state to be updated by the watcher, not guarded by - * the combiner. Will be moved to curr_connectivity_state inside of - * the combiner by rr_connectivity_changed_locked(). */ - grpc_connectivity_state pending_connectivity_state_unsafe; - /** the subchannel's target user data */ - void *user_data; - /** vtable to operate over \a user_data */ - const grpc_lb_user_data_vtable *user_data_vtable; -} subchannel_data; - -struct rr_subchannel_list { - /** backpointer to owning policy */ - round_robin_lb_policy *policy; - - /** all our subchannels */ - size_t num_subchannels; - subchannel_data *subchannels; - - /** how many subchannels are in state READY */ - size_t num_ready; - /** how many subchannels are in state TRANSIENT_FAILURE */ - size_t num_transient_failures; - /** how many subchannels are in state SHUTDOWN */ - size_t num_shutdown; - /** how many subchannels are in state IDLE */ - size_t num_idle; - - /** There will be one ref for each entry in subchannels for which there is a - * pending connectivity state watcher callback. */ - gpr_refcount refcount; - - /** Is this list shutting down? This may be true due to the shutdown of the - * policy itself or because a newer update has arrived while this one hadn't - * finished processing. */ - bool shutting_down; -}; - -static rr_subchannel_list *rr_subchannel_list_create(round_robin_lb_policy *p, - size_t num_subchannels) { - rr_subchannel_list *subchannel_list = - (rr_subchannel_list *)gpr_zalloc(sizeof(*subchannel_list)); - subchannel_list->policy = p; - subchannel_list->subchannels = - (subchannel_data *)gpr_zalloc(sizeof(subchannel_data) * num_subchannels); - subchannel_list->num_subchannels = num_subchannels; - gpr_ref_init(&subchannel_list->refcount, 1); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_INFO, "[RR %p] Created subchannel list %p for %lu subchannels", - (void *)p, (void *)subchannel_list, (unsigned long)num_subchannels); - } - return subchannel_list; -} - -static void rr_subchannel_list_destroy(grpc_exec_ctx *exec_ctx, - rr_subchannel_list *subchannel_list) { - GPR_ASSERT(subchannel_list->shutting_down); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_INFO, "[RR %p] Destroying subchannel_list %p", - (void *)subchannel_list->policy, (void *)subchannel_list); - } - for (size_t i = 0; i < subchannel_list->num_subchannels; i++) { - subchannel_data *sd = &subchannel_list->subchannels[i]; - if (sd->subchannel != NULL) { - GRPC_SUBCHANNEL_UNREF(exec_ctx, sd->subchannel, - "rr_subchannel_list_destroy"); - } - sd->subchannel = NULL; - if (sd->user_data != NULL) { - GPR_ASSERT(sd->user_data_vtable != NULL); - sd->user_data_vtable->destroy(exec_ctx, sd->user_data); - sd->user_data = NULL; - } - } - gpr_free(subchannel_list->subchannels); - gpr_free(subchannel_list); -} - -static void rr_subchannel_list_ref(rr_subchannel_list *subchannel_list, - const char *reason) { - gpr_ref_non_zero(&subchannel_list->refcount); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - const gpr_atm count = gpr_atm_acq_load(&subchannel_list->refcount.count); - gpr_log(GPR_INFO, "[RR %p] subchannel_list %p REF %lu->%lu (%s)", - (void *)subchannel_list->policy, (void *)subchannel_list, - (unsigned long)(count - 1), (unsigned long)count, reason); - } -} - -static void rr_subchannel_list_unref(grpc_exec_ctx *exec_ctx, - rr_subchannel_list *subchannel_list, - const char *reason) { - const bool done = gpr_unref(&subchannel_list->refcount); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - const gpr_atm count = gpr_atm_acq_load(&subchannel_list->refcount.count); - gpr_log(GPR_INFO, "[RR %p] subchannel_list %p UNREF %lu->%lu (%s)", - (void *)subchannel_list->policy, (void *)subchannel_list, - (unsigned long)(count + 1), (unsigned long)count, reason); - } - if (done) { - rr_subchannel_list_destroy(exec_ctx, subchannel_list); - } -} - -/** Mark \a subchannel_list as discarded. Unsubscribes all its subchannels. The - * watcher's callback will ultimately unref \a subchannel_list. */ -static void rr_subchannel_list_shutdown_and_unref( - grpc_exec_ctx *exec_ctx, rr_subchannel_list *subchannel_list, - const char *reason) { - GPR_ASSERT(!subchannel_list->shutting_down); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_DEBUG, "[RR %p] Shutting down subchannel_list %p (%s)", - (void *)subchannel_list->policy, (void *)subchannel_list, reason); - } - GPR_ASSERT(!subchannel_list->shutting_down); - subchannel_list->shutting_down = true; - for (size_t i = 0; i < subchannel_list->num_subchannels; i++) { - subchannel_data *sd = &subchannel_list->subchannels[i]; - if (sd->subchannel != NULL) { // if subchannel isn't shutdown, unsubscribe. - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log( - GPR_DEBUG, - "[RR %p] Unsubscribing from subchannel %p as part of shutting down " - "subchannel_list %p", - (void *)subchannel_list->policy, (void *)sd->subchannel, - (void *)subchannel_list); - } - grpc_subchannel_notify_on_state_change(exec_ctx, sd->subchannel, NULL, - NULL, - &sd->connectivity_changed_closure); - } - } - rr_subchannel_list_unref(exec_ctx, subchannel_list, reason); -} - /** Returns the index into p->subchannel_list->subchannels of the next * subchannel in READY state, or p->subchannel_list->num_subchannels if no * subchannel is READY. @@ -247,122 +98,121 @@ static void rr_subchannel_list_shutdown_and_unref( * Note that this function does *not* update p->last_ready_subchannel_index. * The caller must do that if it returns a pick. */ static size_t get_next_ready_subchannel_index_locked( - const round_robin_lb_policy *p) { - GPR_ASSERT(p->subchannel_list != NULL); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + const round_robin_lb_policy* p) { + GPR_ASSERT(p->subchannel_list != nullptr); + if (grpc_lb_round_robin_trace.enabled()) { gpr_log(GPR_INFO, "[RR %p] getting next ready subchannel (out of %lu), " "last_ready_subchannel_index=%lu", - (void *)p, (unsigned long)p->subchannel_list->num_subchannels, + (void*)p, (unsigned long)p->subchannel_list->num_subchannels, (unsigned long)p->last_ready_subchannel_index); } for (size_t i = 0; i < p->subchannel_list->num_subchannels; ++i) { const size_t index = (i + p->last_ready_subchannel_index + 1) % p->subchannel_list->num_subchannels; - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + if (grpc_lb_round_robin_trace.enabled()) { gpr_log( GPR_DEBUG, "[RR %p] checking subchannel %p, subchannel_list %p, index %lu: " "state=%s", - (void *)p, (void *)p->subchannel_list->subchannels[index].subchannel, - (void *)p->subchannel_list, (unsigned long)index, + (void*)p, (void*)p->subchannel_list->subchannels[index].subchannel, + (void*)p->subchannel_list, (unsigned long)index, grpc_connectivity_state_name( p->subchannel_list->subchannels[index].curr_connectivity_state)); } if (p->subchannel_list->subchannels[index].curr_connectivity_state == GRPC_CHANNEL_READY) { - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + if (grpc_lb_round_robin_trace.enabled()) { gpr_log(GPR_DEBUG, "[RR %p] found next ready subchannel (%p) at index %lu of " "subchannel_list %p", - (void *)p, - (void *)p->subchannel_list->subchannels[index].subchannel, - (unsigned long)index, (void *)p->subchannel_list); + (void*)p, + (void*)p->subchannel_list->subchannels[index].subchannel, + (unsigned long)index, (void*)p->subchannel_list); } return index; } } - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_DEBUG, "[RR %p] no subchannels in ready state", (void *)p); + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, "[RR %p] no subchannels in ready state", (void*)p); } return p->subchannel_list->num_subchannels; } // Sets p->last_ready_subchannel_index to last_ready_index. -static void update_last_ready_subchannel_index_locked(round_robin_lb_policy *p, +static void update_last_ready_subchannel_index_locked(round_robin_lb_policy* p, size_t last_ready_index) { GPR_ASSERT(last_ready_index < p->subchannel_list->num_subchannels); p->last_ready_subchannel_index = last_ready_index; - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log( - GPR_DEBUG, - "[RR %p] setting last_ready_subchannel_index=%lu (SC %p, CSC %p)", - (void *)p, (unsigned long)last_ready_index, - (void *)p->subchannel_list->subchannels[last_ready_index].subchannel, - (void *)grpc_subchannel_get_connected_subchannel( - p->subchannel_list->subchannels[last_ready_index].subchannel)); + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, + "[RR %p] setting last_ready_subchannel_index=%lu (SC %p, CSC %p)", + (void*)p, (unsigned long)last_ready_index, + (void*)p->subchannel_list->subchannels[last_ready_index].subchannel, + (void*)p->subchannel_list->subchannels[last_ready_index] + .connected_subchannel); } } -static void rr_destroy(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { +static void rr_destroy(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; + if (grpc_lb_round_robin_trace.enabled()) { gpr_log(GPR_DEBUG, "[RR %p] Destroying Round Robin policy at %p", - (void *)pol, (void *)pol); + (void*)pol, (void*)pol); } + GPR_ASSERT(p->subchannel_list == nullptr); + GPR_ASSERT(p->latest_pending_subchannel_list == nullptr); grpc_connectivity_state_destroy(exec_ctx, &p->state_tracker); grpc_subchannel_index_unref(); gpr_free(p); } -static void fail_pending_picks_for_shutdown(grpc_exec_ctx *exec_ctx, - round_robin_lb_policy *p) { - pending_pick *pp; - while ((pp = p->pending_picks) != NULL) { +static void shutdown_locked(grpc_exec_ctx* exec_ctx, round_robin_lb_policy* p, + grpc_error* error) { + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, "[RR %p] Shutting down", p); + } + p->shutdown = true; + pending_pick* pp; + while ((pp = p->pending_picks) != nullptr) { p->pending_picks = pp->next; - *pp->target = NULL; - GRPC_CLOSURE_SCHED( - exec_ctx, pp->on_complete, - GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown")); + *pp->target = nullptr; + GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_REF(error)); gpr_free(pp); } -} - -static void rr_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_DEBUG, "[RR %p] Shutting down Round Robin policy at %p", - (void *)pol, (void *)pol); + grpc_connectivity_state_set(exec_ctx, &p->state_tracker, + GRPC_CHANNEL_SHUTDOWN, GRPC_ERROR_REF(error), + "rr_shutdown"); + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "sl_shutdown_rr_shutdown"); + p->subchannel_list = nullptr; } - p->shutdown = true; - fail_pending_picks_for_shutdown(exec_ctx, p); - grpc_connectivity_state_set( - exec_ctx, &p->state_tracker, GRPC_CHANNEL_SHUTDOWN, - GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown"), "rr_shutdown"); - const bool latest_is_current = - p->subchannel_list == p->latest_pending_subchannel_list; - rr_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, - "sl_shutdown_rr_shutdown"); - p->subchannel_list = NULL; - if (!latest_is_current && p->latest_pending_subchannel_list != NULL && - !p->latest_pending_subchannel_list->shutting_down) { - rr_subchannel_list_shutdown_and_unref(exec_ctx, - p->latest_pending_subchannel_list, - "sl_shutdown_pending_rr_shutdown"); - p->latest_pending_subchannel_list = NULL; + if (p->latest_pending_subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->latest_pending_subchannel_list, + "sl_shutdown_pending_rr_shutdown"); + p->latest_pending_subchannel_list = nullptr; } + GRPC_ERROR_UNREF(error); +} + +static void rr_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; + shutdown_locked(exec_ctx, p, + GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel Shutdown")); } -static void rr_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_connected_subchannel **target, - grpc_error *error) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; - pending_pick *pp = p->pending_picks; - p->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; +static void rr_cancel_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_connected_subchannel** target, + grpc_error* error) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; + pending_pick* pp = p->pending_picks; + p->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if (pp->target == target) { - *target = NULL; + *target = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Pick cancelled", &error, 1)); @@ -376,18 +226,18 @@ static void rr_cancel_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, GRPC_ERROR_UNREF(error); } -static void rr_cancel_picks_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, +static void rr_cancel_picks_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, uint32_t initial_metadata_flags_mask, uint32_t initial_metadata_flags_eq, - grpc_error *error) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; - pending_pick *pp = p->pending_picks; - p->pending_picks = NULL; - while (pp != NULL) { - pending_pick *next = pp->next; + grpc_error* error) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; + pending_pick* pp = p->pending_picks; + p->pending_picks = nullptr; + while (pp != nullptr) { + pending_pick* next = pp->next; if ((pp->initial_metadata_flags & initial_metadata_flags_mask) == initial_metadata_flags_eq) { - *pp->target = NULL; + *pp->target = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Pick cancelled", &error, 1)); @@ -401,55 +251,53 @@ static void rr_cancel_picks_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, GRPC_ERROR_UNREF(error); } -static void start_picking_locked(grpc_exec_ctx *exec_ctx, - round_robin_lb_policy *p) { +static void start_picking_locked(grpc_exec_ctx* exec_ctx, + round_robin_lb_policy* p) { p->started_picking = true; for (size_t i = 0; i < p->subchannel_list->num_subchannels; i++) { - subchannel_data *sd = &p->subchannel_list->subchannels[i]; - GRPC_LB_POLICY_WEAK_REF(&p->base, "start_picking_locked"); - rr_subchannel_list_ref(sd->subchannel_list, "started_picking"); - grpc_subchannel_notify_on_state_change( - exec_ctx, sd->subchannel, p->base.interested_parties, - &sd->pending_connectivity_state_unsafe, - &sd->connectivity_changed_closure); + grpc_lb_subchannel_list_ref_for_connectivity_watch(p->subchannel_list, + "connectivity_watch"); + grpc_lb_subchannel_data_start_connectivity_watch( + exec_ctx, &p->subchannel_list->subchannels[i]); } } -static void rr_exit_idle_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; +static void rr_exit_idle_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; if (!p->started_picking) { start_picking_locked(exec_ctx, p); } } -static int rr_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - const grpc_lb_policy_pick_args *pick_args, - grpc_connected_subchannel **target, - grpc_call_context_element *context, void **user_data, - grpc_closure *on_complete) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; - GPR_ASSERT(!p->shutdown); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_INFO, "[RR %p] Trying to pick", (void *)pol); +static int rr_pick_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + const grpc_lb_policy_pick_args* pick_args, + grpc_connected_subchannel** target, + grpc_call_context_element* context, void** user_data, + grpc_closure* on_complete) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_INFO, "[RR %p] Trying to pick (shutdown: %d)", (void*)pol, + p->shutdown); } - if (p->subchannel_list != NULL) { + GPR_ASSERT(!p->shutdown); + if (p->subchannel_list != nullptr) { const size_t next_ready_index = get_next_ready_subchannel_index_locked(p); if (next_ready_index < p->subchannel_list->num_subchannels) { /* readily available, report right away */ - subchannel_data *sd = &p->subchannel_list->subchannels[next_ready_index]; - *target = GRPC_CONNECTED_SUBCHANNEL_REF( - grpc_subchannel_get_connected_subchannel(sd->subchannel), - "rr_picked"); - if (user_data != NULL) { + grpc_lb_subchannel_data* sd = + &p->subchannel_list->subchannels[next_ready_index]; + *target = + GRPC_CONNECTED_SUBCHANNEL_REF(sd->connected_subchannel, "rr_picked"); + if (user_data != nullptr) { *user_data = sd->user_data; } - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + if (grpc_lb_round_robin_trace.enabled()) { gpr_log( GPR_DEBUG, "[RR %p] Picked target <-- Subchannel %p (connected %p) (sl %p, " "index %lu)", - (void *)p, (void *)sd->subchannel, (void *)*target, - (void *)sd->subchannel_list, (unsigned long)next_ready_index); + (void*)p, (void*)sd->subchannel, (void*)*target, + (void*)sd->subchannel_list, (unsigned long)next_ready_index); } /* only advance the last picked pointer if the selection was used */ update_last_ready_subchannel_index_locked(p, next_ready_index); @@ -460,7 +308,7 @@ static int rr_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, if (!p->started_picking) { start_picking_locked(exec_ctx, p); } - pending_pick *pp = (pending_pick *)gpr_malloc(sizeof(*pp)); + pending_pick* pp = (pending_pick*)gpr_malloc(sizeof(*pp)); pp->next = p->pending_picks; pp->target = target; pp->on_complete = on_complete; @@ -470,8 +318,8 @@ static int rr_pick_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, return 0; } -static void update_state_counters_locked(subchannel_data *sd) { - rr_subchannel_list *subchannel_list = sd->subchannel_list; +static void update_state_counters_locked(grpc_lb_subchannel_data* sd) { + grpc_lb_subchannel_list* subchannel_list = sd->subchannel_list; if (sd->prev_connectivity_state == GRPC_CHANNEL_READY) { GPR_ASSERT(subchannel_list->num_ready > 0); --subchannel_list->num_ready; @@ -485,6 +333,7 @@ static void update_state_counters_locked(subchannel_data *sd) { GPR_ASSERT(subchannel_list->num_idle > 0); --subchannel_list->num_idle; } + sd->prev_connectivity_state = sd->curr_connectivity_state; if (sd->curr_connectivity_state == GRPC_CHANNEL_READY) { ++subchannel_list->num_ready; } else if (sd->curr_connectivity_state == GRPC_CHANNEL_TRANSIENT_FAILURE) { @@ -497,12 +346,12 @@ static void update_state_counters_locked(subchannel_data *sd) { } /** Sets the policy's connectivity status based on that of the passed-in \a sd - * (the subchannel_data associted with the updated subchannel) and the + * (the grpc_lb_subchannel_data associted with the updated subchannel) and the * subchannel list \a sd belongs to (sd->subchannel_list). \a error will only be * used upon policy transition to TRANSIENT_FAILURE or SHUTDOWN. Returns the * connectivity status set. */ static grpc_connectivity_state update_lb_connectivity_status_locked( - grpc_exec_ctx *exec_ctx, subchannel_data *sd, grpc_error *error) { + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd, grpc_error* error) { /* In priority order. The first rule to match terminates the search (ie, if we * are on rule n, all previous rules were unfulfilled). * @@ -524,8 +373,8 @@ static grpc_connectivity_state update_lb_connectivity_status_locked( * CHECK: p->num_idle == p->subchannel_list->num_subchannels. */ grpc_connectivity_state new_state = sd->curr_connectivity_state; - rr_subchannel_list *subchannel_list = sd->subchannel_list; - round_robin_lb_policy *p = subchannel_list->policy; + grpc_lb_subchannel_list* subchannel_list = sd->subchannel_list; + round_robin_lb_policy* p = (round_robin_lb_policy*)subchannel_list->policy; if (subchannel_list->num_ready > 0) { /* 1) READY */ grpc_connectivity_state_set(exec_ctx, &p->state_tracker, GRPC_CHANNEL_READY, GRPC_ERROR_NONE, "rr_ready"); @@ -543,6 +392,11 @@ static grpc_connectivity_state update_lb_connectivity_status_locked( "rr_shutdown"); p->shutdown = true; new_state = GRPC_CHANNEL_SHUTDOWN; + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_INFO, + "[RR %p] Shutting down: all subchannels have gone into shutdown", + (void*)p); + } } else if (subchannel_list->num_transient_failures == p->subchannel_list->num_subchannels) { /* 4) TRANSIENT_FAILURE */ grpc_connectivity_state_set(exec_ctx, &p->state_tracker, @@ -559,17 +413,18 @@ static grpc_connectivity_state update_lb_connectivity_status_locked( return new_state; } -static void rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - subchannel_data *sd = (subchannel_data *)arg; - round_robin_lb_policy *p = sd->subchannel_list->policy; - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { +static void rr_connectivity_changed_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_lb_subchannel_data* sd = (grpc_lb_subchannel_data*)arg; + round_robin_lb_policy* p = + (round_robin_lb_policy*)sd->subchannel_list->policy; + if (grpc_lb_round_robin_trace.enabled()) { gpr_log( GPR_DEBUG, "[RR %p] connectivity changed for subchannel %p, subchannel_list %p: " "prev_state=%s new_state=%s p->shutdown=%d " "sd->subchannel_list->shutting_down=%d error=%s", - (void *)p, (void *)sd->subchannel, (void *)sd->subchannel_list, + (void*)p, (void*)sd->subchannel, (void*)sd->subchannel_list, grpc_connectivity_state_name(sd->prev_connectivity_state), grpc_connectivity_state_name(sd->pending_connectivity_state_unsafe), p->shutdown, sd->subchannel_list->shutting_down, @@ -577,65 +432,50 @@ static void rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, void *arg, } // If the policy is shutting down, unref and return. if (p->shutdown) { - rr_subchannel_list_unref(exec_ctx, sd->subchannel_list, - "pol_shutdown+started_picking"); - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "pol_shutdown"); + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, "rr_shutdown"); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "rr_shutdown"); return; } - if (sd->subchannel_list->shutting_down && error == GRPC_ERROR_CANCELLED) { - // the subchannel list associated with sd has been discarded. This callback - // corresponds to the unsubscription. The unrefs correspond to the picking - // ref (start_picking_locked or update_started_picking). - rr_subchannel_list_unref(exec_ctx, sd->subchannel_list, - "sl_shutdown+started_picking"); - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, "sl_shutdown+picking"); - return; - } - // Dispose of outdated subchannel lists. - if (sd->subchannel_list != p->subchannel_list && - sd->subchannel_list != p->latest_pending_subchannel_list) { - const char *reason = NULL; - if (sd->subchannel_list->shutting_down) { - reason = "sl_outdated_straggler"; - rr_subchannel_list_unref(exec_ctx, sd->subchannel_list, reason); - } else { - reason = "sl_outdated"; - rr_subchannel_list_shutdown_and_unref(exec_ctx, sd->subchannel_list, - reason); - } - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, reason); + // If the subchannel list is shutting down, stop watching. + if (sd->subchannel_list->shutting_down || error == GRPC_ERROR_CANCELLED) { + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, "rr_sl_shutdown"); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "rr_sl_shutdown"); return; } + // If we're still here, the notification must be for a subchannel in + // either the current or latest pending subchannel lists. + GPR_ASSERT(sd->subchannel_list == p->subchannel_list || + sd->subchannel_list == p->latest_pending_subchannel_list); // Now that we're inside the combiner, copy the pending connectivity // state (which was set by the connectivity state watcher) to // curr_connectivity_state, which is what we use inside of the combiner. sd->curr_connectivity_state = sd->pending_connectivity_state_unsafe; // Update state counters and determine new overall state. update_state_counters_locked(sd); - sd->prev_connectivity_state = sd->curr_connectivity_state; const grpc_connectivity_state new_policy_connectivity_state = update_lb_connectivity_status_locked(exec_ctx, sd, GRPC_ERROR_REF(error)); // If the sd's new state is SHUTDOWN, unref the subchannel, and if the new // policy's state is SHUTDOWN, clean up. if (sd->curr_connectivity_state == GRPC_CHANNEL_SHUTDOWN) { - GRPC_SUBCHANNEL_UNREF(exec_ctx, sd->subchannel, "rr_subchannel_shutdown"); - sd->subchannel = NULL; - if (sd->user_data != NULL) { - GPR_ASSERT(sd->user_data_vtable != NULL); - sd->user_data_vtable->destroy(exec_ctx, sd->user_data); - sd->user_data = NULL; - } + grpc_lb_subchannel_data_stop_connectivity_watch(exec_ctx, sd); + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, + "rr_connectivity_shutdown"); + grpc_lb_subchannel_list_unref_for_connectivity_watch( + exec_ctx, sd->subchannel_list, "rr_connectivity_shutdown"); if (new_policy_connectivity_state == GRPC_CHANNEL_SHUTDOWN) { - // The policy is shutting down. Fail all of the pending picks. - fail_pending_picks_for_shutdown(exec_ctx, p); + shutdown_locked(exec_ctx, p, GRPC_ERROR_REF(error)); } - rr_subchannel_list_unref(exec_ctx, sd->subchannel_list, - "sd_shutdown+started_picking"); - // unref the "rr_connectivity_update" weak ref from start_picking. - GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &p->base, - "rr_connectivity_sd_shutdown"); } else { // sd not in SHUTDOWN if (sd->curr_connectivity_state == GRPC_CHANNEL_READY) { + if (sd->connected_subchannel == nullptr) { + sd->connected_subchannel = GRPC_CONNECTED_SUBCHANNEL_REF( + grpc_subchannel_get_connected_subchannel(sd->subchannel), + "connected"); + } if (sd->subchannel_list != p->subchannel_list) { // promote sd->subchannel_list to p->subchannel_list. // sd->subchannel_list must be equal to @@ -643,229 +483,162 @@ static void rr_connectivity_changed_locked(grpc_exec_ctx *exec_ctx, void *arg, // for sds belonging to outdated subchannel lists. GPR_ASSERT(sd->subchannel_list == p->latest_pending_subchannel_list); GPR_ASSERT(!sd->subchannel_list->shutting_down); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + if (grpc_lb_round_robin_trace.enabled()) { const unsigned long num_subchannels = - p->subchannel_list != NULL + p->subchannel_list != nullptr ? (unsigned long)p->subchannel_list->num_subchannels : 0; gpr_log(GPR_DEBUG, "[RR %p] phasing out subchannel list %p (size %lu) in favor " "of %p (size %lu)", - (void *)p, (void *)p->subchannel_list, num_subchannels, - (void *)sd->subchannel_list, num_subchannels); + (void*)p, (void*)p->subchannel_list, num_subchannels, + (void*)sd->subchannel_list, num_subchannels); } - if (p->subchannel_list != NULL) { + if (p->subchannel_list != nullptr) { // dispose of the current subchannel_list - rr_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, - "sl_phase_out_shutdown"); + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->subchannel_list, "sl_phase_out_shutdown"); } p->subchannel_list = p->latest_pending_subchannel_list; - p->latest_pending_subchannel_list = NULL; + p->latest_pending_subchannel_list = nullptr; } /* at this point we know there's at least one suitable subchannel. Go * ahead and pick one and notify the pending suitors in * p->pending_picks. This preemtively replicates rr_pick()'s actions. */ const size_t next_ready_index = get_next_ready_subchannel_index_locked(p); GPR_ASSERT(next_ready_index < p->subchannel_list->num_subchannels); - subchannel_data *selected = + grpc_lb_subchannel_data* selected = &p->subchannel_list->subchannels[next_ready_index]; - if (p->pending_picks != NULL) { + if (p->pending_picks != nullptr) { // if the selected subchannel is going to be used for the pending // picks, update the last picked pointer update_last_ready_subchannel_index_locked(p, next_ready_index); } - pending_pick *pp; + pending_pick* pp; while ((pp = p->pending_picks)) { p->pending_picks = pp->next; *pp->target = GRPC_CONNECTED_SUBCHANNEL_REF( - grpc_subchannel_get_connected_subchannel(selected->subchannel), - "rr_picked"); - if (pp->user_data != NULL) { + selected->connected_subchannel, "rr_picked"); + if (pp->user_data != nullptr) { *pp->user_data = selected->user_data; } - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { + if (grpc_lb_round_robin_trace.enabled()) { gpr_log(GPR_DEBUG, "[RR %p] Fulfilling pending pick. Target <-- subchannel %p " "(subchannel_list %p, index %lu)", - (void *)p, (void *)selected->subchannel, - (void *)p->subchannel_list, (unsigned long)next_ready_index); + (void*)p, (void*)selected->subchannel, + (void*)p->subchannel_list, (unsigned long)next_ready_index); } GRPC_CLOSURE_SCHED(exec_ctx, pp->on_complete, GRPC_ERROR_NONE); gpr_free(pp); } } - /* renew notification: reuses the "rr_connectivity_update" weak ref on the - * policy as well as the sd->subchannel_list ref. */ - grpc_subchannel_notify_on_state_change( - exec_ctx, sd->subchannel, p->base.interested_parties, - &sd->pending_connectivity_state_unsafe, - &sd->connectivity_changed_closure); + // Renew notification. + grpc_lb_subchannel_data_start_connectivity_watch(exec_ctx, sd); } } static grpc_connectivity_state rr_check_connectivity_locked( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, grpc_error **error) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; + grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, grpc_error** error) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; return grpc_connectivity_state_get(&p->state_tracker, error); } -static void rr_notify_on_state_change_locked(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *pol, - grpc_connectivity_state *current, - grpc_closure *notify) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; +static void rr_notify_on_state_change_locked(grpc_exec_ctx* exec_ctx, + grpc_lb_policy* pol, + grpc_connectivity_state* current, + grpc_closure* notify) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; grpc_connectivity_state_notify_on_state_change(exec_ctx, &p->state_tracker, current, notify); } -static void rr_ping_one_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *pol, - grpc_closure *closure) { - round_robin_lb_policy *p = (round_robin_lb_policy *)pol; +static void rr_ping_one_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* pol, + grpc_closure* closure) { + round_robin_lb_policy* p = (round_robin_lb_policy*)pol; const size_t next_ready_index = get_next_ready_subchannel_index_locked(p); if (next_ready_index < p->subchannel_list->num_subchannels) { - subchannel_data *selected = + grpc_lb_subchannel_data* selected = &p->subchannel_list->subchannels[next_ready_index]; - grpc_connected_subchannel *target = GRPC_CONNECTED_SUBCHANNEL_REF( - grpc_subchannel_get_connected_subchannel(selected->subchannel), - "rr_picked"); + grpc_connected_subchannel* target = GRPC_CONNECTED_SUBCHANNEL_REF( + selected->connected_subchannel, "rr_ping"); grpc_connected_subchannel_ping(exec_ctx, target, closure); - GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, target, "rr_picked"); + GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, target, "rr_ping"); } else { - GRPC_CLOSURE_SCHED(exec_ctx, closure, GRPC_ERROR_CREATE_FROM_STATIC_STRING( - "Round Robin not connected")); + GRPC_CLOSURE_SCHED( + exec_ctx, closure, + GRPC_ERROR_CREATE_FROM_STATIC_STRING("Round Robin not connected")); } } -static void rr_update_locked(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - const grpc_lb_policy_args *args) { - round_robin_lb_policy *p = (round_robin_lb_policy *)policy; - const grpc_arg *arg = +static void rr_update_locked(grpc_exec_ctx* exec_ctx, grpc_lb_policy* policy, + const grpc_lb_policy_args* args) { + round_robin_lb_policy* p = (round_robin_lb_policy*)policy; + const grpc_arg* arg = grpc_channel_args_find(args->args, GRPC_ARG_LB_ADDRESSES); - if (arg == NULL || arg->type != GRPC_ARG_POINTER) { - if (p->subchannel_list == NULL) { - // If we don't have a current subchannel list, go into TRANSIENT FAILURE. + if (arg == nullptr || arg->type != GRPC_ARG_POINTER) { + gpr_log(GPR_ERROR, "[RR %p] update provided no addresses; ignoring", p); + // If we don't have a current subchannel list, go into TRANSIENT_FAILURE. + // Otherwise, keep using the current subchannel list (ignore this update). + if (p->subchannel_list == nullptr) { grpc_connectivity_state_set( exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing update in args"), "rr_update_missing"); - } else { - // otherwise, keep using the current subchannel list (ignore this update). - gpr_log(GPR_ERROR, - "[RR %p] No valid LB addresses channel arg for update, ignoring.", - (void *)p); } return; } - grpc_lb_addresses *addresses = (grpc_lb_addresses *)arg->value.pointer.p; - rr_subchannel_list *subchannel_list = - rr_subchannel_list_create(p, addresses->num_addresses); - if (addresses->num_addresses == 0) { + grpc_lb_addresses* addresses = (grpc_lb_addresses*)arg->value.pointer.p; + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, "[RR %p] received update with %" PRIuPTR " addresses", p, + addresses->num_addresses); + } + grpc_lb_subchannel_list* subchannel_list = grpc_lb_subchannel_list_create( + exec_ctx, &p->base, &grpc_lb_round_robin_trace, addresses, args, + rr_connectivity_changed_locked); + if (subchannel_list->num_subchannels == 0) { grpc_connectivity_state_set( exec_ctx, &p->state_tracker, GRPC_CHANNEL_TRANSIENT_FAILURE, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Empty update"), "rr_update_empty"); - if (p->subchannel_list != NULL) { - rr_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, - "sl_shutdown_empty_update"); + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, + "sl_shutdown_empty_update"); } p->subchannel_list = subchannel_list; // empty list return; } - size_t subchannel_index = 0; - if (p->latest_pending_subchannel_list != NULL && p->started_picking) { - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_DEBUG, - "[RR %p] Shutting down latest pending subchannel list %p, about " - "to be replaced by newer latest %p", - (void *)p, (void *)p->latest_pending_subchannel_list, - (void *)subchannel_list); - } - rr_subchannel_list_shutdown_and_unref( - exec_ctx, p->latest_pending_subchannel_list, "sl_outdated_dont_smash"); - } - p->latest_pending_subchannel_list = subchannel_list; - grpc_subchannel_args sc_args; - /* We need to remove the LB addresses in order to be able to compare the - * subchannel keys of subchannels from a different batch of addresses. */ - static const char *keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS, - GRPC_ARG_LB_ADDRESSES}; - /* Create subchannels for addresses in the update. */ - for (size_t i = 0; i < addresses->num_addresses; i++) { - // If there were any balancer, we would have chosen grpclb policy instead. - GPR_ASSERT(!addresses->addresses[i].is_balancer); - memset(&sc_args, 0, sizeof(grpc_subchannel_args)); - grpc_arg addr_arg = - grpc_create_subchannel_address_arg(&addresses->addresses[i].address); - grpc_channel_args *new_args = grpc_channel_args_copy_and_add_and_remove( - args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &addr_arg, - 1); - gpr_free(addr_arg.value.string); - sc_args.args = new_args; - grpc_subchannel *subchannel = grpc_client_channel_factory_create_subchannel( - exec_ctx, args->client_channel_factory, &sc_args); - grpc_channel_args_destroy(exec_ctx, new_args); - grpc_error *error; - // Get the connectivity state of the subchannel. Already existing ones may - // be in a state other than INIT. - const grpc_connectivity_state subchannel_connectivity_state = - grpc_subchannel_check_connectivity(subchannel, &error); - if (error != GRPC_ERROR_NONE) { - // The subchannel is in error (e.g. shutting down). Ignore it. - GRPC_SUBCHANNEL_UNREF(exec_ctx, subchannel, "new_sc_connectivity_error"); - GRPC_ERROR_UNREF(error); - continue; - } - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - char *address_uri = - grpc_sockaddr_to_uri(&addresses->addresses[i].address); - gpr_log( - GPR_DEBUG, - "[RR %p] index %lu: Created subchannel %p for address uri %s into " - "subchannel_list %p. Connectivity state %s", - (void *)p, (unsigned long)subchannel_index, (void *)subchannel, - address_uri, (void *)subchannel_list, - grpc_connectivity_state_name(subchannel_connectivity_state)); - gpr_free(address_uri); - } - subchannel_data *sd = &subchannel_list->subchannels[subchannel_index++]; - sd->subchannel_list = subchannel_list; - sd->subchannel = subchannel; - GRPC_CLOSURE_INIT(&sd->connectivity_changed_closure, - rr_connectivity_changed_locked, sd, - grpc_combiner_scheduler(args->combiner)); - /* use some sentinel value outside of the range of - * grpc_connectivity_state to signal an undefined previous state. We - * won't be referring to this value again and it'll be overwritten after - * the first call to rr_connectivity_changed_locked */ - sd->prev_connectivity_state = GRPC_CHANNEL_INIT; - sd->curr_connectivity_state = subchannel_connectivity_state; - sd->user_data_vtable = addresses->user_data_vtable; - if (sd->user_data_vtable != NULL) { - sd->user_data = - sd->user_data_vtable->copy(addresses->addresses[i].user_data); + if (p->started_picking) { + if (p->latest_pending_subchannel_list != nullptr) { + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, + "[RR %p] Shutting down latest pending subchannel list %p, " + "about to be replaced by newer latest %p", + (void*)p, (void*)p->latest_pending_subchannel_list, + (void*)subchannel_list); + } + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->latest_pending_subchannel_list, "sl_outdated"); } - if (p->started_picking) { - rr_subchannel_list_ref(sd->subchannel_list, "update_started_picking"); - GRPC_LB_POLICY_WEAK_REF(&p->base, "rr_connectivity_update"); - /* 2. Watch every new subchannel. A subchannel list becomes active the + p->latest_pending_subchannel_list = subchannel_list; + for (size_t i = 0; i < subchannel_list->num_subchannels; ++i) { + /* Watch every new subchannel. A subchannel list becomes active the * moment one of its subchannels is READY. At that moment, we swap * p->subchannel_list for sd->subchannel_list, provided the subchannel * list is still valid (ie, isn't shutting down) */ - grpc_subchannel_notify_on_state_change( - exec_ctx, sd->subchannel, p->base.interested_parties, - &sd->pending_connectivity_state_unsafe, - &sd->connectivity_changed_closure); + grpc_lb_subchannel_list_ref_for_connectivity_watch(subchannel_list, + "connectivity_watch"); + grpc_lb_subchannel_data_start_connectivity_watch( + exec_ctx, &subchannel_list->subchannels[i]); } - } - if (!p->started_picking) { + } else { // The policy isn't picking yet. Save the update for later, disposing of // previous version if any. - if (p->subchannel_list != NULL) { - rr_subchannel_list_shutdown_and_unref(exec_ctx, p->subchannel_list, - "rr_update_before_started_picking"); + if (p->subchannel_list != nullptr) { + grpc_lb_subchannel_list_shutdown_and_unref( + exec_ctx, p->subchannel_list, "rr_update_before_started_picking"); } p->subchannel_list = subchannel_list; - p->latest_pending_subchannel_list = NULL; } } @@ -881,22 +654,22 @@ static const grpc_lb_policy_vtable round_robin_lb_policy_vtable = { rr_notify_on_state_change_locked, rr_update_locked}; -static void round_robin_factory_ref(grpc_lb_policy_factory *factory) {} +static void round_robin_factory_ref(grpc_lb_policy_factory* factory) {} -static void round_robin_factory_unref(grpc_lb_policy_factory *factory) {} +static void round_robin_factory_unref(grpc_lb_policy_factory* factory) {} -static grpc_lb_policy *round_robin_create(grpc_exec_ctx *exec_ctx, - grpc_lb_policy_factory *factory, - grpc_lb_policy_args *args) { - GPR_ASSERT(args->client_channel_factory != NULL); - round_robin_lb_policy *p = (round_robin_lb_policy *)gpr_zalloc(sizeof(*p)); +static grpc_lb_policy* round_robin_create(grpc_exec_ctx* exec_ctx, + grpc_lb_policy_factory* factory, + grpc_lb_policy_args* args) { + GPR_ASSERT(args->client_channel_factory != nullptr); + round_robin_lb_policy* p = (round_robin_lb_policy*)gpr_zalloc(sizeof(*p)); grpc_lb_policy_init(&p->base, &round_robin_lb_policy_vtable, args->combiner); grpc_subchannel_index_ref(); grpc_connectivity_state_init(&p->state_tracker, GRPC_CHANNEL_IDLE, "round_robin"); rr_update_locked(exec_ctx, &p->base, args); - if (GRPC_TRACER_ON(grpc_lb_round_robin_trace)) { - gpr_log(GPR_DEBUG, "[RR %p] Created with %lu subchannels", (void *)p, + if (grpc_lb_round_robin_trace.enabled()) { + gpr_log(GPR_DEBUG, "[RR %p] Created with %lu subchannels", (void*)p, (unsigned long)p->subchannel_list->num_subchannels); } return &p->base; @@ -909,7 +682,7 @@ static const grpc_lb_policy_factory_vtable round_robin_factory_vtable = { static grpc_lb_policy_factory round_robin_lb_policy_factory = { &round_robin_factory_vtable}; -static grpc_lb_policy_factory *round_robin_lb_factory_create() { +static grpc_lb_policy_factory* round_robin_lb_factory_create() { return &round_robin_lb_policy_factory; } @@ -917,7 +690,6 @@ static grpc_lb_policy_factory *round_robin_lb_factory_create() { extern "C" void grpc_lb_policy_round_robin_init() { grpc_register_lb_policy(round_robin_lb_factory_create()); - grpc_register_tracer(&grpc_lb_round_robin_trace); } extern "C" void grpc_lb_policy_round_robin_shutdown() {} diff --git a/src/core/ext/filters/client_channel/lb_policy/subchannel_list.cc b/src/core/ext/filters/client_channel/lb_policy/subchannel_list.cc new file mode 100644 index 0000000000..b6fce4d207 --- /dev/null +++ b/src/core/ext/filters/client_channel/lb_policy/subchannel_list.cc @@ -0,0 +1,270 @@ +/* + * + * Copyright 2015 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include <string.h> + +#include <grpc/support/alloc.h> + +#include "src/core/ext/filters/client_channel/lb_policy/subchannel_list.h" +#include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/debug/trace.h" +#include "src/core/lib/iomgr/closure.h" +#include "src/core/lib/iomgr/combiner.h" +#include "src/core/lib/iomgr/sockaddr_utils.h" +#include "src/core/lib/transport/connectivity_state.h" + +void grpc_lb_subchannel_data_unref_subchannel(grpc_exec_ctx* exec_ctx, + grpc_lb_subchannel_data* sd, + const char* reason) { + if (sd->subchannel != nullptr) { + if (sd->subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, + "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR + " (subchannel %p): unreffing subchannel", + sd->subchannel_list->tracer->name(), sd->subchannel_list->policy, + sd->subchannel_list, + (size_t)(sd - sd->subchannel_list->subchannels), + sd->subchannel_list->num_subchannels, sd->subchannel); + } + GRPC_SUBCHANNEL_UNREF(exec_ctx, sd->subchannel, reason); + sd->subchannel = nullptr; + if (sd->connected_subchannel != nullptr) { + GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, sd->connected_subchannel, + reason); + sd->connected_subchannel = nullptr; + } + if (sd->user_data != nullptr) { + GPR_ASSERT(sd->user_data_vtable != nullptr); + sd->user_data_vtable->destroy(exec_ctx, sd->user_data); + sd->user_data = nullptr; + } + } +} + +void grpc_lb_subchannel_data_start_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd) { + if (sd->subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, + "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR + " (subchannel %p): requesting connectivity change notification", + sd->subchannel_list->tracer->name(), sd->subchannel_list->policy, + sd->subchannel_list, + (size_t)(sd - sd->subchannel_list->subchannels), + sd->subchannel_list->num_subchannels, sd->subchannel); + } + sd->connectivity_notification_pending = true; + grpc_subchannel_notify_on_state_change( + exec_ctx, sd->subchannel, sd->subchannel_list->policy->interested_parties, + &sd->pending_connectivity_state_unsafe, + &sd->connectivity_changed_closure); +} + +void grpc_lb_subchannel_data_stop_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd) { + if (sd->subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, + "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR + " (subchannel %p): stopping connectivity watch", + sd->subchannel_list->tracer->name(), sd->subchannel_list->policy, + sd->subchannel_list, + (size_t)(sd - sd->subchannel_list->subchannels), + sd->subchannel_list->num_subchannels, sd->subchannel); + } + GPR_ASSERT(sd->connectivity_notification_pending); + sd->connectivity_notification_pending = false; +} + +grpc_lb_subchannel_list* grpc_lb_subchannel_list_create( + grpc_exec_ctx* exec_ctx, grpc_lb_policy* p, grpc_core::TraceFlag* tracer, + const grpc_lb_addresses* addresses, const grpc_lb_policy_args* args, + grpc_iomgr_cb_func connectivity_changed_cb) { + grpc_lb_subchannel_list* subchannel_list = + (grpc_lb_subchannel_list*)gpr_zalloc(sizeof(*subchannel_list)); + if (tracer->enabled()) { + gpr_log(GPR_DEBUG, + "[%s %p] Creating subchannel list %p for %" PRIuPTR " subchannels", + tracer->name(), p, subchannel_list, addresses->num_addresses); + } + subchannel_list->policy = p; + subchannel_list->tracer = tracer; + gpr_ref_init(&subchannel_list->refcount, 1); + subchannel_list->subchannels = (grpc_lb_subchannel_data*)gpr_zalloc( + sizeof(grpc_lb_subchannel_data) * addresses->num_addresses); + // We need to remove the LB addresses in order to be able to compare the + // subchannel keys of subchannels from a different batch of addresses. + static const char* keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS, + GRPC_ARG_LB_ADDRESSES}; + // Create a subchannel for each address. + grpc_subchannel_args sc_args; + size_t subchannel_index = 0; + for (size_t i = 0; i < addresses->num_addresses; i++) { + // If there were any balancer, we would have chosen grpclb policy instead. + GPR_ASSERT(!addresses->addresses[i].is_balancer); + memset(&sc_args, 0, sizeof(grpc_subchannel_args)); + grpc_arg addr_arg = + grpc_create_subchannel_address_arg(&addresses->addresses[i].address); + grpc_channel_args* new_args = grpc_channel_args_copy_and_add_and_remove( + args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &addr_arg, + 1); + gpr_free(addr_arg.value.string); + sc_args.args = new_args; + grpc_subchannel* subchannel = grpc_client_channel_factory_create_subchannel( + exec_ctx, args->client_channel_factory, &sc_args); + grpc_channel_args_destroy(exec_ctx, new_args); + if (subchannel == nullptr) { + // Subchannel could not be created. + if (tracer->enabled()) { + char* address_uri = + grpc_sockaddr_to_uri(&addresses->addresses[i].address); + gpr_log(GPR_DEBUG, + "[%s %p] could not create subchannel for address uri %s, " + "ignoring", + tracer->name(), subchannel_list->policy, address_uri); + gpr_free(address_uri); + } + continue; + } + if (tracer->enabled()) { + char* address_uri = + grpc_sockaddr_to_uri(&addresses->addresses[i].address); + gpr_log(GPR_DEBUG, + "[%s %p] subchannel list %p index %" PRIuPTR + ": Created subchannel %p for address uri %s", + tracer->name(), p, subchannel_list, subchannel_index, subchannel, + address_uri); + gpr_free(address_uri); + } + grpc_lb_subchannel_data* sd = + &subchannel_list->subchannels[subchannel_index++]; + sd->subchannel_list = subchannel_list; + sd->subchannel = subchannel; + GRPC_CLOSURE_INIT(&sd->connectivity_changed_closure, + connectivity_changed_cb, sd, + grpc_combiner_scheduler(args->combiner)); + // We assume that the current state is IDLE. If not, we'll get a + // callback telling us that. + sd->prev_connectivity_state = GRPC_CHANNEL_IDLE; + sd->curr_connectivity_state = GRPC_CHANNEL_IDLE; + sd->pending_connectivity_state_unsafe = GRPC_CHANNEL_IDLE; + sd->user_data_vtable = addresses->user_data_vtable; + if (sd->user_data_vtable != nullptr) { + sd->user_data = + sd->user_data_vtable->copy(addresses->addresses[i].user_data); + } + } + subchannel_list->num_subchannels = subchannel_index; + subchannel_list->num_idle = subchannel_index; + return subchannel_list; +} + +static void subchannel_list_destroy(grpc_exec_ctx* exec_ctx, + grpc_lb_subchannel_list* subchannel_list) { + if (subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, "[%s %p] Destroying subchannel_list %p", + subchannel_list->tracer->name(), subchannel_list->policy, + subchannel_list); + } + for (size_t i = 0; i < subchannel_list->num_subchannels; i++) { + grpc_lb_subchannel_data* sd = &subchannel_list->subchannels[i]; + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, + "subchannel_list_destroy"); + } + gpr_free(subchannel_list->subchannels); + gpr_free(subchannel_list); +} + +void grpc_lb_subchannel_list_ref(grpc_lb_subchannel_list* subchannel_list, + const char* reason) { + gpr_ref_non_zero(&subchannel_list->refcount); + if (subchannel_list->tracer->enabled()) { + const gpr_atm count = gpr_atm_acq_load(&subchannel_list->refcount.count); + gpr_log(GPR_DEBUG, "[%s %p] subchannel_list %p REF %lu->%lu (%s)", + subchannel_list->tracer->name(), subchannel_list->policy, + subchannel_list, (unsigned long)(count - 1), (unsigned long)count, + reason); + } +} + +void grpc_lb_subchannel_list_unref(grpc_exec_ctx* exec_ctx, + grpc_lb_subchannel_list* subchannel_list, + const char* reason) { + const bool done = gpr_unref(&subchannel_list->refcount); + if (subchannel_list->tracer->enabled()) { + const gpr_atm count = gpr_atm_acq_load(&subchannel_list->refcount.count); + gpr_log(GPR_DEBUG, "[%s %p] subchannel_list %p UNREF %lu->%lu (%s)", + subchannel_list->tracer->name(), subchannel_list->policy, + subchannel_list, (unsigned long)(count + 1), (unsigned long)count, + reason); + } + if (done) { + subchannel_list_destroy(exec_ctx, subchannel_list); + } +} + +void grpc_lb_subchannel_list_ref_for_connectivity_watch( + grpc_lb_subchannel_list* subchannel_list, const char* reason) { + GRPC_LB_POLICY_WEAK_REF(subchannel_list->policy, reason); + grpc_lb_subchannel_list_ref(subchannel_list, reason); +} + +void grpc_lb_subchannel_list_unref_for_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_list* subchannel_list, + const char* reason) { + GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, subchannel_list->policy, reason); + grpc_lb_subchannel_list_unref(exec_ctx, subchannel_list, reason); +} + +static void subchannel_data_cancel_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd, const char* reason) { + if (sd->subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, + "[%s %p] subchannel list %p index %" PRIuPTR " of %" PRIuPTR + " (subchannel %p): canceling connectivity watch (%s)", + sd->subchannel_list->tracer->name(), sd->subchannel_list->policy, + sd->subchannel_list, + (size_t)(sd - sd->subchannel_list->subchannels), + sd->subchannel_list->num_subchannels, sd->subchannel, reason); + } + grpc_subchannel_notify_on_state_change(exec_ctx, sd->subchannel, nullptr, + nullptr, + &sd->connectivity_changed_closure); +} + +void grpc_lb_subchannel_list_shutdown_and_unref( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_list* subchannel_list, + const char* reason) { + if (subchannel_list->tracer->enabled()) { + gpr_log(GPR_DEBUG, "[%s %p] Shutting down subchannel_list %p (%s)", + subchannel_list->tracer->name(), subchannel_list->policy, + subchannel_list, reason); + } + GPR_ASSERT(!subchannel_list->shutting_down); + subchannel_list->shutting_down = true; + for (size_t i = 0; i < subchannel_list->num_subchannels; i++) { + grpc_lb_subchannel_data* sd = &subchannel_list->subchannels[i]; + // If there's a pending notification for this subchannel, cancel it; + // the callback is responsible for unreffing the subchannel. + // Otherwise, unref the subchannel directly. + if (sd->connectivity_notification_pending) { + subchannel_data_cancel_connectivity_watch(exec_ctx, sd, reason); + } else if (sd->subchannel != nullptr) { + grpc_lb_subchannel_data_unref_subchannel(exec_ctx, sd, reason); + } + } + grpc_lb_subchannel_list_unref(exec_ctx, subchannel_list, reason); +} diff --git a/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h b/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h new file mode 100644 index 0000000000..6538bd0673 --- /dev/null +++ b/src/core/ext/filters/client_channel/lb_policy/subchannel_list.h @@ -0,0 +1,153 @@ +/* + * + * Copyright 2015 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H +#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H + +#include "src/core/ext/filters/client_channel/lb_policy_registry.h" +#include "src/core/ext/filters/client_channel/subchannel.h" +#include "src/core/lib/debug/trace.h" +#include "src/core/lib/transport/connectivity_state.h" + +// TODO(roth): This code is intended to be shared between pick_first and +// round_robin. However, the interface needs more work to provide clean +// encapsulation. For example, the structs here have some fields that are +// only used in one of the two (e.g., the state counters in +// grpc_lb_subchannel_list and the prev_connectivity_state field in +// grpc_lb_subchannel_data are only used in round_robin, and the +// checking_subchannel field in grpc_lb_subchannel_list is only used by +// pick_first). Also, there is probably some code duplication between the +// connectivity state notification callback code in both pick_first and +// round_robin that could be refactored and moved here. In a future PR, +// need to clean this up. + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct grpc_lb_subchannel_list grpc_lb_subchannel_list; + +typedef struct { + /** backpointer to owning subchannel list */ + grpc_lb_subchannel_list* subchannel_list; + /** subchannel itself */ + grpc_subchannel* subchannel; + grpc_connected_subchannel* connected_subchannel; + /** Is a connectivity notification pending? */ + bool connectivity_notification_pending; + /** notification that connectivity has changed on subchannel */ + grpc_closure connectivity_changed_closure; + /** previous and current connectivity states. Updated by \a + * \a connectivity_changed_closure based on + * \a pending_connectivity_state_unsafe. */ + grpc_connectivity_state prev_connectivity_state; + grpc_connectivity_state curr_connectivity_state; + /** connectivity state to be updated by + * grpc_subchannel_notify_on_state_change(), not guarded by + * the combiner. To be copied to \a curr_connectivity_state by + * \a connectivity_changed_closure. */ + grpc_connectivity_state pending_connectivity_state_unsafe; + /** the subchannel's target user data */ + void* user_data; + /** vtable to operate over \a user_data */ + const grpc_lb_user_data_vtable* user_data_vtable; +} grpc_lb_subchannel_data; + +/// Unrefs the subchannel contained in sd. +void grpc_lb_subchannel_data_unref_subchannel(grpc_exec_ctx* exec_ctx, + grpc_lb_subchannel_data* sd, + const char* reason); + +/// Starts watching the connectivity state of the subchannel. +/// The connectivity_changed_cb callback must invoke either +/// grpc_lb_subchannel_data_stop_connectivity_watch() or again call +/// grpc_lb_subchannel_data_start_connectivity_watch(). +void grpc_lb_subchannel_data_start_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd); + +/// Stops watching the connectivity state of the subchannel. +void grpc_lb_subchannel_data_stop_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_data* sd); + +struct grpc_lb_subchannel_list { + /** backpointer to owning policy */ + grpc_lb_policy* policy; + + grpc_core::TraceFlag* tracer; + + /** all our subchannels */ + size_t num_subchannels; + grpc_lb_subchannel_data* subchannels; + + /** Index into subchannels of the one we're currently checking. + * Used when connecting to subchannels serially instead of in parallel. */ + // TODO(roth): When we have time, we can probably make this go away + // and compute the index dynamically by subtracting + // subchannel_list->subchannels from the subchannel_data pointer. + size_t checking_subchannel; + + /** how many subchannels are in state READY */ + size_t num_ready; + /** how many subchannels are in state TRANSIENT_FAILURE */ + size_t num_transient_failures; + /** how many subchannels are in state SHUTDOWN */ + size_t num_shutdown; + /** how many subchannels are in state IDLE */ + size_t num_idle; + + /** There will be one ref for each entry in subchannels for which there is a + * pending connectivity state watcher callback. */ + gpr_refcount refcount; + + /** Is this list shutting down? This may be true due to the shutdown of the + * policy itself or because a newer update has arrived while this one hadn't + * finished processing. */ + bool shutting_down; +}; + +grpc_lb_subchannel_list* grpc_lb_subchannel_list_create( + grpc_exec_ctx* exec_ctx, grpc_lb_policy* p, grpc_core::TraceFlag* tracer, + const grpc_lb_addresses* addresses, const grpc_lb_policy_args* args, + grpc_iomgr_cb_func connectivity_changed_cb); + +void grpc_lb_subchannel_list_ref(grpc_lb_subchannel_list* subchannel_list, + const char* reason); + +void grpc_lb_subchannel_list_unref(grpc_exec_ctx* exec_ctx, + grpc_lb_subchannel_list* subchannel_list, + const char* reason); + +/// Takes and releases refs needed for a connectivity notification. +/// This includes a ref to subchannel_list and a weak ref to the LB policy. +void grpc_lb_subchannel_list_ref_for_connectivity_watch( + grpc_lb_subchannel_list* subchannel_list, const char* reason); +void grpc_lb_subchannel_list_unref_for_connectivity_watch( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_list* subchannel_list, + const char* reason); + +/// Mark subchannel_list as discarded. Unsubscribes all its subchannels. The +/// connectivity state notification callback will ultimately unref it. +void grpc_lb_subchannel_list_shutdown_and_unref( + grpc_exec_ctx* exec_ctx, grpc_lb_subchannel_list* subchannel_list, + const char* reason); + +#ifdef __cplusplus +} +#endif + +#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_SUBCHANNEL_LIST_H */ diff --git a/src/core/ext/filters/client_channel/lb_policy_factory.cc b/src/core/ext/filters/client_channel/lb_policy_factory.cc index 05ab43d0b6..d43f9fd1b9 100644 --- a/src/core/ext/filters/client_channel/lb_policy_factory.cc +++ b/src/core/ext/filters/client_channel/lb_policy_factory.cc @@ -43,11 +43,11 @@ grpc_lb_addresses* grpc_lb_addresses_copy(const grpc_lb_addresses* addresses) { memcpy(new_addresses->addresses, addresses->addresses, sizeof(grpc_lb_address) * addresses->num_addresses); for (size_t i = 0; i < addresses->num_addresses; ++i) { - if (new_addresses->addresses[i].balancer_name != NULL) { + if (new_addresses->addresses[i].balancer_name != nullptr) { new_addresses->addresses[i].balancer_name = gpr_strdup(new_addresses->addresses[i].balancer_name); } - if (new_addresses->addresses[i].user_data != NULL) { + if (new_addresses->addresses[i].user_data != nullptr) { new_addresses->addresses[i].user_data = addresses->user_data_vtable->copy( new_addresses->addresses[i].user_data); } @@ -60,7 +60,7 @@ void grpc_lb_addresses_set_address(grpc_lb_addresses* addresses, size_t index, bool is_balancer, const char* balancer_name, void* user_data) { GPR_ASSERT(index < addresses->num_addresses); - if (user_data != NULL) GPR_ASSERT(addresses->user_data_vtable != NULL); + if (user_data != nullptr) GPR_ASSERT(addresses->user_data_vtable != nullptr); grpc_lb_address* target = &addresses->addresses[index]; memcpy(target->address.addr, address, address_len); target->address.len = address_len; @@ -98,12 +98,12 @@ int grpc_lb_addresses_cmp(const grpc_lb_addresses* addresses1, if (target1->is_balancer > target2->is_balancer) return 1; if (target1->is_balancer < target2->is_balancer) return -1; const char* balancer_name1 = - target1->balancer_name != NULL ? target1->balancer_name : ""; + target1->balancer_name != nullptr ? target1->balancer_name : ""; const char* balancer_name2 = - target2->balancer_name != NULL ? target2->balancer_name : ""; + target2->balancer_name != nullptr ? target2->balancer_name : ""; retval = strcmp(balancer_name1, balancer_name2); if (retval != 0) return retval; - if (addresses1->user_data_vtable != NULL) { + if (addresses1->user_data_vtable != nullptr) { retval = addresses1->user_data_vtable->cmp(target1->user_data, target2->user_data); if (retval != 0) return retval; @@ -116,7 +116,7 @@ void grpc_lb_addresses_destroy(grpc_exec_ctx* exec_ctx, grpc_lb_addresses* addresses) { for (size_t i = 0; i < addresses->num_addresses; ++i) { gpr_free(addresses->addresses[i].balancer_name); - if (addresses->addresses[i].user_data != NULL) { + if (addresses->addresses[i].user_data != nullptr) { addresses->user_data_vtable->destroy(exec_ctx, addresses->addresses[i].user_data); } @@ -148,8 +148,8 @@ grpc_lb_addresses* grpc_lb_addresses_find_channel_arg( const grpc_channel_args* channel_args) { const grpc_arg* lb_addresses_arg = grpc_channel_args_find(channel_args, GRPC_ARG_LB_ADDRESSES); - if (lb_addresses_arg == NULL || lb_addresses_arg->type != GRPC_ARG_POINTER) - return NULL; + if (lb_addresses_arg == nullptr || lb_addresses_arg->type != GRPC_ARG_POINTER) + return nullptr; return (grpc_lb_addresses*)lb_addresses_arg->value.pointer.p; } @@ -164,6 +164,6 @@ void grpc_lb_policy_factory_unref(grpc_lb_policy_factory* factory) { grpc_lb_policy* grpc_lb_policy_factory_create_lb_policy( grpc_exec_ctx* exec_ctx, grpc_lb_policy_factory* factory, grpc_lb_policy_args* args) { - if (factory == NULL) return NULL; + if (factory == nullptr) return nullptr; return factory->vtable->create_lb_policy(exec_ctx, factory, args); } diff --git a/src/core/ext/filters/client_channel/lb_policy_factory.h b/src/core/ext/filters/client_channel/lb_policy_factory.h index 8790ffdda3..360a42b177 100644 --- a/src/core/ext/filters/client_channel/lb_policy_factory.h +++ b/src/core/ext/filters/client_channel/lb_policy_factory.h @@ -37,7 +37,7 @@ typedef struct grpc_lb_policy_factory grpc_lb_policy_factory; typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable; struct grpc_lb_policy_factory { - const grpc_lb_policy_factory_vtable *vtable; + const grpc_lb_policy_factory_vtable* vtable; }; /** A resolved address alongside any LB related information associated with it. @@ -48,91 +48,91 @@ struct grpc_lb_policy_factory { typedef struct grpc_lb_address { grpc_resolved_address address; bool is_balancer; - char *balancer_name; /* For secure naming. */ - void *user_data; + char* balancer_name; /* For secure naming. */ + void* user_data; } grpc_lb_address; typedef struct grpc_lb_user_data_vtable { - void *(*copy)(void *); - void (*destroy)(grpc_exec_ctx *exec_ctx, void *); - int (*cmp)(void *, void *); + void* (*copy)(void*); + void (*destroy)(grpc_exec_ctx* exec_ctx, void*); + int (*cmp)(void*, void*); } grpc_lb_user_data_vtable; typedef struct grpc_lb_addresses { size_t num_addresses; - grpc_lb_address *addresses; - const grpc_lb_user_data_vtable *user_data_vtable; + grpc_lb_address* addresses; + const grpc_lb_user_data_vtable* user_data_vtable; } grpc_lb_addresses; /** Returns a grpc_addresses struct with enough space for \a num_addresses addresses. The \a user_data_vtable argument may be NULL if no user data will be added. */ -grpc_lb_addresses *grpc_lb_addresses_create( - size_t num_addresses, const grpc_lb_user_data_vtable *user_data_vtable); +grpc_lb_addresses* grpc_lb_addresses_create( + size_t num_addresses, const grpc_lb_user_data_vtable* user_data_vtable); /** Creates a copy of \a addresses. */ -grpc_lb_addresses *grpc_lb_addresses_copy(const grpc_lb_addresses *addresses); +grpc_lb_addresses* grpc_lb_addresses_copy(const grpc_lb_addresses* addresses); /** Sets the value of the address at index \a index of \a addresses. * \a address is a socket address of length \a address_len. * Takes ownership of \a balancer_name. */ -void grpc_lb_addresses_set_address(grpc_lb_addresses *addresses, size_t index, - const void *address, size_t address_len, - bool is_balancer, const char *balancer_name, - void *user_data); +void grpc_lb_addresses_set_address(grpc_lb_addresses* addresses, size_t index, + const void* address, size_t address_len, + bool is_balancer, const char* balancer_name, + void* user_data); /** Sets the value of the address at index \a index of \a addresses from \a uri. * Returns true upon success, false otherwise. Takes ownership of \a * balancer_name. */ -bool grpc_lb_addresses_set_address_from_uri(grpc_lb_addresses *addresses, - size_t index, const grpc_uri *uri, +bool grpc_lb_addresses_set_address_from_uri(grpc_lb_addresses* addresses, + size_t index, const grpc_uri* uri, bool is_balancer, - const char *balancer_name, - void *user_data); + const char* balancer_name, + void* user_data); /** Compares \a addresses1 and \a addresses2. */ -int grpc_lb_addresses_cmp(const grpc_lb_addresses *addresses1, - const grpc_lb_addresses *addresses2); +int grpc_lb_addresses_cmp(const grpc_lb_addresses* addresses1, + const grpc_lb_addresses* addresses2); /** Destroys \a addresses. */ -void grpc_lb_addresses_destroy(grpc_exec_ctx *exec_ctx, - grpc_lb_addresses *addresses); +void grpc_lb_addresses_destroy(grpc_exec_ctx* exec_ctx, + grpc_lb_addresses* addresses); /** Returns a channel arg containing \a addresses. */ grpc_arg grpc_lb_addresses_create_channel_arg( - const grpc_lb_addresses *addresses); + const grpc_lb_addresses* addresses); /** Returns the \a grpc_lb_addresses instance in \a channel_args or NULL */ -grpc_lb_addresses *grpc_lb_addresses_find_channel_arg( - const grpc_channel_args *channel_args); +grpc_lb_addresses* grpc_lb_addresses_find_channel_arg( + const grpc_channel_args* channel_args); /** Arguments passed to LB policies. */ struct grpc_lb_policy_args { - grpc_client_channel_factory *client_channel_factory; - grpc_channel_args *args; - grpc_combiner *combiner; + grpc_client_channel_factory* client_channel_factory; + grpc_channel_args* args; + grpc_combiner* combiner; }; struct grpc_lb_policy_factory_vtable { - void (*ref)(grpc_lb_policy_factory *factory); - void (*unref)(grpc_lb_policy_factory *factory); + void (*ref)(grpc_lb_policy_factory* factory); + void (*unref)(grpc_lb_policy_factory* factory); /** Implementation of grpc_lb_policy_factory_create_lb_policy */ - grpc_lb_policy *(*create_lb_policy)(grpc_exec_ctx *exec_ctx, - grpc_lb_policy_factory *factory, - grpc_lb_policy_args *args); + grpc_lb_policy* (*create_lb_policy)(grpc_exec_ctx* exec_ctx, + grpc_lb_policy_factory* factory, + grpc_lb_policy_args* args); /** Name for the LB policy this factory implements */ - const char *name; + const char* name; }; -void grpc_lb_policy_factory_ref(grpc_lb_policy_factory *factory); -void grpc_lb_policy_factory_unref(grpc_lb_policy_factory *factory); +void grpc_lb_policy_factory_ref(grpc_lb_policy_factory* factory); +void grpc_lb_policy_factory_unref(grpc_lb_policy_factory* factory); /** Create a lb_policy instance. */ -grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy( - grpc_exec_ctx *exec_ctx, grpc_lb_policy_factory *factory, - grpc_lb_policy_args *args); +grpc_lb_policy* grpc_lb_policy_factory_create_lb_policy( + grpc_exec_ctx* exec_ctx, grpc_lb_policy_factory* factory, + grpc_lb_policy_args* args); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/lb_policy_registry.cc b/src/core/ext/filters/client_channel/lb_policy_registry.cc index f2460f8304..6e710e86d9 100644 --- a/src/core/ext/filters/client_channel/lb_policy_registry.cc +++ b/src/core/ext/filters/client_channel/lb_policy_registry.cc @@ -24,7 +24,7 @@ #define MAX_POLICIES 10 -static grpc_lb_policy_factory *g_all_of_the_lb_policies[MAX_POLICIES]; +static grpc_lb_policy_factory* g_all_of_the_lb_policies[MAX_POLICIES]; static int g_number_of_lb_policies = 0; void grpc_lb_policy_registry_init(void) { g_number_of_lb_policies = 0; } @@ -36,7 +36,7 @@ void grpc_lb_policy_registry_shutdown(void) { } } -void grpc_register_lb_policy(grpc_lb_policy_factory *factory) { +void grpc_register_lb_policy(grpc_lb_policy_factory* factory) { int i; for (i = 0; i < g_number_of_lb_policies; i++) { GPR_ASSERT(0 != gpr_stricmp(factory->vtable->name, @@ -47,10 +47,10 @@ void grpc_register_lb_policy(grpc_lb_policy_factory *factory) { g_all_of_the_lb_policies[g_number_of_lb_policies++] = factory; } -static grpc_lb_policy_factory *lookup_factory(const char *name) { +static grpc_lb_policy_factory* lookup_factory(const char* name) { int i; - if (name == NULL) return NULL; + if (name == nullptr) return nullptr; for (i = 0; i < g_number_of_lb_policies; i++) { if (0 == gpr_stricmp(name, g_all_of_the_lb_policies[i]->vtable->name)) { @@ -58,13 +58,13 @@ static grpc_lb_policy_factory *lookup_factory(const char *name) { } } - return NULL; + return nullptr; } -grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name, - grpc_lb_policy_args *args) { - grpc_lb_policy_factory *factory = lookup_factory(name); - grpc_lb_policy *lb_policy = +grpc_lb_policy* grpc_lb_policy_create(grpc_exec_ctx* exec_ctx, const char* name, + grpc_lb_policy_args* args) { + grpc_lb_policy_factory* factory = lookup_factory(name); + grpc_lb_policy* lb_policy = grpc_lb_policy_factory_create_lb_policy(exec_ctx, factory, args); return lb_policy; } diff --git a/src/core/ext/filters/client_channel/lb_policy_registry.h b/src/core/ext/filters/client_channel/lb_policy_registry.h index 55154cb02a..055f751b57 100644 --- a/src/core/ext/filters/client_channel/lb_policy_registry.h +++ b/src/core/ext/filters/client_channel/lb_policy_registry.h @@ -32,14 +32,14 @@ void grpc_lb_policy_registry_init(void); void grpc_lb_policy_registry_shutdown(void); /** Register a LB policy factory. */ -void grpc_register_lb_policy(grpc_lb_policy_factory *factory); +void grpc_register_lb_policy(grpc_lb_policy_factory* factory); /** Create a \a grpc_lb_policy instance. * * If \a name is NULL, the default factory from \a grpc_lb_policy_registry_init * will be returned. */ -grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name, - grpc_lb_policy_args *args); +grpc_lb_policy* grpc_lb_policy_create(grpc_exec_ctx* exec_ctx, const char* name, + grpc_lb_policy_args* args); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/parse_address.cc b/src/core/ext/filters/client_channel/parse_address.cc index 2152b5a1e9..39b1237c77 100644 --- a/src/core/ext/filters/client_channel/parse_address.cc +++ b/src/core/ext/filters/client_channel/parse_address.cc @@ -33,13 +33,13 @@ #ifdef GRPC_HAVE_UNIX_SOCKET -bool grpc_parse_unix(const grpc_uri *uri, - grpc_resolved_address *resolved_addr) { +bool grpc_parse_unix(const grpc_uri* uri, + grpc_resolved_address* resolved_addr) { if (strcmp("unix", uri->scheme) != 0) { gpr_log(GPR_ERROR, "Expected 'unix' scheme, got '%s'", uri->scheme); return false; } - struct sockaddr_un *un = (struct sockaddr_un *)resolved_addr->addr; + struct sockaddr_un* un = (struct sockaddr_un*)resolved_addr->addr; const size_t maxlen = sizeof(un->sun_path); const size_t path_len = strnlen(uri->path, maxlen); if (path_len == maxlen) return false; @@ -51,31 +51,31 @@ bool grpc_parse_unix(const grpc_uri *uri, #else /* GRPC_HAVE_UNIX_SOCKET */ -bool grpc_parse_unix(const grpc_uri *uri, - grpc_resolved_address *resolved_addr) { +bool grpc_parse_unix(const grpc_uri* uri, + grpc_resolved_address* resolved_addr) { abort(); } #endif /* GRPC_HAVE_UNIX_SOCKET */ -bool grpc_parse_ipv4_hostport(const char *hostport, grpc_resolved_address *addr, +bool grpc_parse_ipv4_hostport(const char* hostport, grpc_resolved_address* addr, bool log_errors) { bool success = false; // Split host and port. - char *host; - char *port; + char* host; + char* port; if (!gpr_split_host_port(hostport, &host, &port)) return false; // Parse IP address. memset(addr, 0, sizeof(*addr)); addr->len = sizeof(struct sockaddr_in); - struct sockaddr_in *in = (struct sockaddr_in *)addr->addr; + struct sockaddr_in* in = (struct sockaddr_in*)addr->addr; in->sin_family = AF_INET; if (inet_pton(AF_INET, host, &in->sin_addr) == 0) { if (log_errors) gpr_log(GPR_ERROR, "invalid ipv4 address: '%s'", host); goto done; } // Parse port. - if (port == NULL) { + if (port == nullptr) { if (log_errors) gpr_log(GPR_ERROR, "no port given for ipv4 scheme"); goto done; } @@ -92,33 +92,33 @@ done: return success; } -bool grpc_parse_ipv4(const grpc_uri *uri, - grpc_resolved_address *resolved_addr) { +bool grpc_parse_ipv4(const grpc_uri* uri, + grpc_resolved_address* resolved_addr) { if (strcmp("ipv4", uri->scheme) != 0) { gpr_log(GPR_ERROR, "Expected 'ipv4' scheme, got '%s'", uri->scheme); return false; } - const char *host_port = uri->path; + const char* host_port = uri->path; if (*host_port == '/') ++host_port; return grpc_parse_ipv4_hostport(host_port, resolved_addr, true /* log_errors */); } -bool grpc_parse_ipv6_hostport(const char *hostport, grpc_resolved_address *addr, +bool grpc_parse_ipv6_hostport(const char* hostport, grpc_resolved_address* addr, bool log_errors) { bool success = false; // Split host and port. - char *host; - char *port; + char* host; + char* port; if (!gpr_split_host_port(hostport, &host, &port)) return false; // Parse IP address. memset(addr, 0, sizeof(*addr)); addr->len = sizeof(struct sockaddr_in6); - struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)addr->addr; + struct sockaddr_in6* in6 = (struct sockaddr_in6*)addr->addr; in6->sin6_family = AF_INET6; // Handle the RFC6874 syntax for IPv6 zone identifiers. - char *host_end = (char *)gpr_memrchr(host, '%', strlen(host)); - if (host_end != NULL) { + char* host_end = (char*)gpr_memrchr(host, '%', strlen(host)); + if (host_end != nullptr) { GPR_ASSERT(host_end >= host); char host_without_scope[INET6_ADDRSTRLEN]; size_t host_without_scope_len = (size_t)(host_end - host); @@ -144,7 +144,7 @@ bool grpc_parse_ipv6_hostport(const char *hostport, grpc_resolved_address *addr, } } // Parse port. - if (port == NULL) { + if (port == nullptr) { if (log_errors) gpr_log(GPR_ERROR, "no port given for ipv6 scheme"); goto done; } @@ -161,19 +161,19 @@ done: return success; } -bool grpc_parse_ipv6(const grpc_uri *uri, - grpc_resolved_address *resolved_addr) { +bool grpc_parse_ipv6(const grpc_uri* uri, + grpc_resolved_address* resolved_addr) { if (strcmp("ipv6", uri->scheme) != 0) { gpr_log(GPR_ERROR, "Expected 'ipv6' scheme, got '%s'", uri->scheme); return false; } - const char *host_port = uri->path; + const char* host_port = uri->path; if (*host_port == '/') ++host_port; return grpc_parse_ipv6_hostport(host_port, resolved_addr, true /* log_errors */); } -bool grpc_parse_uri(const grpc_uri *uri, grpc_resolved_address *resolved_addr) { +bool grpc_parse_uri(const grpc_uri* uri, grpc_resolved_address* resolved_addr) { if (strcmp("unix", uri->scheme) == 0) { return grpc_parse_unix(uri, resolved_addr); } else if (strcmp("ipv4", uri->scheme) == 0) { diff --git a/src/core/ext/filters/client_channel/parse_address.h b/src/core/ext/filters/client_channel/parse_address.h index 27d06a1cb3..b45859f9a2 100644 --- a/src/core/ext/filters/client_channel/parse_address.h +++ b/src/core/ext/filters/client_channel/parse_address.h @@ -30,23 +30,23 @@ extern "C" { /** Populate \a resolved_addr from \a uri, whose path is expected to contain a * unix socket path. Returns true upon success. */ -bool grpc_parse_unix(const grpc_uri *uri, grpc_resolved_address *resolved_addr); +bool grpc_parse_unix(const grpc_uri* uri, grpc_resolved_address* resolved_addr); /** Populate \a resolved_addr from \a uri, whose path is expected to contain an * IPv4 host:port pair. Returns true upon success. */ -bool grpc_parse_ipv4(const grpc_uri *uri, grpc_resolved_address *resolved_addr); +bool grpc_parse_ipv4(const grpc_uri* uri, grpc_resolved_address* resolved_addr); /** Populate \a resolved_addr from \a uri, whose path is expected to contain an * IPv6 host:port pair. Returns true upon success. */ -bool grpc_parse_ipv6(const grpc_uri *uri, grpc_resolved_address *resolved_addr); +bool grpc_parse_ipv6(const grpc_uri* uri, grpc_resolved_address* resolved_addr); /** Populate \a resolved_addr from \a uri. Returns true upon success. */ -bool grpc_parse_uri(const grpc_uri *uri, grpc_resolved_address *resolved_addr); +bool grpc_parse_uri(const grpc_uri* uri, grpc_resolved_address* resolved_addr); /** Parse bare IPv4 or IPv6 "IP:port" strings. */ -bool grpc_parse_ipv4_hostport(const char *hostport, grpc_resolved_address *addr, +bool grpc_parse_ipv4_hostport(const char* hostport, grpc_resolved_address* addr, bool log_errors); -bool grpc_parse_ipv6_hostport(const char *hostport, grpc_resolved_address *addr, +bool grpc_parse_ipv6_hostport(const char* hostport, grpc_resolved_address* addr, bool log_errors); #ifdef __cplusplus diff --git a/src/core/ext/filters/client_channel/resolver.cc b/src/core/ext/filters/client_channel/resolver.cc index 8401504fcf..c16b1515c7 100644 --- a/src/core/ext/filters/client_channel/resolver.cc +++ b/src/core/ext/filters/client_channel/resolver.cc @@ -19,65 +19,63 @@ #include "src/core/ext/filters/client_channel/resolver.h" #include "src/core/lib/iomgr/combiner.h" -#ifndef NDEBUG -grpc_tracer_flag grpc_trace_resolver_refcount = - GRPC_TRACER_INITIALIZER(false, "resolver_refcount"); -#endif +grpc_core::DebugOnlyTraceFlag grpc_trace_resolver_refcount(false, + "resolver_refcount"); -void grpc_resolver_init(grpc_resolver *resolver, - const grpc_resolver_vtable *vtable, - grpc_combiner *combiner) { +void grpc_resolver_init(grpc_resolver* resolver, + const grpc_resolver_vtable* vtable, + grpc_combiner* combiner) { resolver->vtable = vtable; resolver->combiner = GRPC_COMBINER_REF(combiner, "resolver"); gpr_ref_init(&resolver->refs, 1); } #ifndef NDEBUG -void grpc_resolver_ref(grpc_resolver *resolver, const char *file, int line, - const char *reason) { - if (GRPC_TRACER_ON(grpc_trace_resolver_refcount)) { +void grpc_resolver_ref(grpc_resolver* resolver, const char* file, int line, + const char* reason) { + if (grpc_trace_resolver_refcount.enabled()) { gpr_atm old_refs = gpr_atm_no_barrier_load(&resolver->refs.count); gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p ref %" PRIdPTR " -> %" PRIdPTR " %s", resolver, old_refs, old_refs + 1, reason); } #else -void grpc_resolver_ref(grpc_resolver *resolver) { +void grpc_resolver_ref(grpc_resolver* resolver) { #endif gpr_ref(&resolver->refs); } #ifndef NDEBUG -void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - const char *file, int line, const char *reason) { - if (GRPC_TRACER_ON(grpc_trace_resolver_refcount)) { +void grpc_resolver_unref(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver, + const char* file, int line, const char* reason) { + if (grpc_trace_resolver_refcount.enabled()) { gpr_atm old_refs = gpr_atm_no_barrier_load(&resolver->refs.count); gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p unref %" PRIdPTR " -> %" PRIdPTR " %s", resolver, old_refs, old_refs - 1, reason); } #else -void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) { +void grpc_resolver_unref(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver) { #endif if (gpr_unref(&resolver->refs)) { - grpc_combiner *combiner = resolver->combiner; + grpc_combiner* combiner = resolver->combiner; resolver->vtable->destroy(exec_ctx, resolver); GRPC_COMBINER_UNREF(exec_ctx, combiner, "resolver"); } } -void grpc_resolver_shutdown_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { +void grpc_resolver_shutdown_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { resolver->vtable->shutdown_locked(exec_ctx, resolver); } -void grpc_resolver_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { +void grpc_resolver_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { resolver->vtable->channel_saw_error_locked(exec_ctx, resolver); } -void grpc_resolver_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_channel_args **result, - grpc_closure *on_complete) { +void grpc_resolver_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver, + grpc_channel_args** result, + grpc_closure* on_complete) { resolver->vtable->next_locked(exec_ctx, resolver, result, on_complete); } diff --git a/src/core/ext/filters/client_channel/resolver.h b/src/core/ext/filters/client_channel/resolver.h index 73fbbbbc3b..b5806ad8d7 100644 --- a/src/core/ext/filters/client_channel/resolver.h +++ b/src/core/ext/filters/client_channel/resolver.h @@ -29,55 +29,53 @@ extern "C" { typedef struct grpc_resolver grpc_resolver; typedef struct grpc_resolver_vtable grpc_resolver_vtable; -#ifndef NDEBUG -extern grpc_tracer_flag grpc_trace_resolver_refcount; -#endif +extern grpc_core::DebugOnlyTraceFlag grpc_trace_resolver_refcount; /** \a grpc_resolver provides \a grpc_channel_args objects to its caller */ struct grpc_resolver { - const grpc_resolver_vtable *vtable; + const grpc_resolver_vtable* vtable; gpr_refcount refs; - grpc_combiner *combiner; + grpc_combiner* combiner; }; struct grpc_resolver_vtable { - void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); - void (*shutdown_locked)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); - void (*channel_saw_error_locked)(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver); - void (*next_locked)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_channel_args **result, grpc_closure *on_complete); + void (*destroy)(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver); + void (*shutdown_locked)(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver); + void (*channel_saw_error_locked)(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver); + void (*next_locked)(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver, + grpc_channel_args** result, grpc_closure* on_complete); }; #ifndef NDEBUG #define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p), __FILE__, __LINE__, (r)) #define GRPC_RESOLVER_UNREF(e, p, r) \ grpc_resolver_unref((e), (p), __FILE__, __LINE__, (r)) -void grpc_resolver_ref(grpc_resolver *policy, const char *file, int line, - const char *reason); -void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *policy, - const char *file, int line, const char *reason); +void grpc_resolver_ref(grpc_resolver* policy, const char* file, int line, + const char* reason); +void grpc_resolver_unref(grpc_exec_ctx* exec_ctx, grpc_resolver* policy, + const char* file, int line, const char* reason); #else #define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p)) #define GRPC_RESOLVER_UNREF(e, p, r) grpc_resolver_unref((e), (p)) -void grpc_resolver_ref(grpc_resolver *policy); -void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *policy); +void grpc_resolver_ref(grpc_resolver* policy); +void grpc_resolver_unref(grpc_exec_ctx* exec_ctx, grpc_resolver* policy); #endif -void grpc_resolver_init(grpc_resolver *resolver, - const grpc_resolver_vtable *vtable, - grpc_combiner *combiner); +void grpc_resolver_init(grpc_resolver* resolver, + const grpc_resolver_vtable* vtable, + grpc_combiner* combiner); -void grpc_resolver_shutdown_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver); +void grpc_resolver_shutdown_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver); /** Notification that the channel has seen an error on some address. Can be used as a hint that re-resolution is desirable soon. Must be called from the combiner passed as a resolver_arg at construction time.*/ -void grpc_resolver_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver); +void grpc_resolver_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver); /** Get the next result from the resolver. Expected to set \a *result with new channel args and then schedule \a on_complete for execution. @@ -87,9 +85,9 @@ void grpc_resolver_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, Must be called from the combiner passed as a resolver_arg at construction time.*/ -void grpc_resolver_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_channel_args **result, - grpc_closure *on_complete); +void grpc_resolver_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver, + grpc_channel_args** result, + grpc_closure* on_complete); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc index 5f7ab987cb..07737b19d2 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc @@ -53,38 +53,38 @@ typedef struct { /** base class: must be first */ grpc_resolver base; /** DNS server to use (if not system default) */ - char *dns_server; + char* dns_server; /** name to resolve (usually the same as target_name) */ - char *name_to_resolve; + char* name_to_resolve; /** default port to use */ - char *default_port; + char* default_port; /** channel args. */ - grpc_channel_args *channel_args; + grpc_channel_args* channel_args; /** whether to request the service config */ bool request_service_config; /** pollset_set to drive the name resolution process */ - grpc_pollset_set *interested_parties; + grpc_pollset_set* interested_parties; /** Closures used by the combiner */ grpc_closure dns_ares_on_retry_timer_locked; grpc_closure dns_ares_on_resolved_locked; /** Combiner guarding the rest of the state */ - grpc_combiner *combiner; + grpc_combiner* combiner; /** are we currently resolving? */ bool resolving; /** the pending resolving request */ - grpc_ares_request *pending_request; + grpc_ares_request* pending_request; /** which version of the result have we published? */ int published_version; /** which version of the result is current? */ int resolved_version; /** pending next completion, or NULL */ - grpc_closure *next_completion; + grpc_closure* next_completion; /** target result address for next completion */ - grpc_channel_args **target_result; + grpc_channel_args** target_result; /** current (fully resolved) result */ - grpc_channel_args *resolved_result; + grpc_channel_args* resolved_result; /** retry timer */ bool have_retry_timer; grpc_timer retry_timer; @@ -92,59 +92,59 @@ typedef struct { grpc_backoff backoff_state; /** currently resolving addresses */ - grpc_lb_addresses *lb_addresses; + grpc_lb_addresses* lb_addresses; /** currently resolving service config */ - char *service_config_json; + char* service_config_json; } ares_dns_resolver; -static void dns_ares_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r); +static void dns_ares_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* r); -static void dns_ares_start_resolving_locked(grpc_exec_ctx *exec_ctx, - ares_dns_resolver *r); -static void dns_ares_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - ares_dns_resolver *r); +static void dns_ares_start_resolving_locked(grpc_exec_ctx* exec_ctx, + ares_dns_resolver* r); +static void dns_ares_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + ares_dns_resolver* r); -static void dns_ares_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r); -static void dns_ares_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *r); -static void dns_ares_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r, - grpc_channel_args **target_result, - grpc_closure *on_complete); +static void dns_ares_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r); +static void dns_ares_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* r); +static void dns_ares_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r, + grpc_channel_args** target_result, + grpc_closure* on_complete); static const grpc_resolver_vtable dns_ares_resolver_vtable = { dns_ares_destroy, dns_ares_shutdown_locked, dns_ares_channel_saw_error_locked, dns_ares_next_locked}; -static void dns_ares_shutdown_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - ares_dns_resolver *r = (ares_dns_resolver *)resolver; +static void dns_ares_shutdown_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + ares_dns_resolver* r = (ares_dns_resolver*)resolver; if (r->have_retry_timer) { grpc_timer_cancel(exec_ctx, &r->retry_timer); } - if (r->pending_request != NULL) { + if (r->pending_request != nullptr) { grpc_cancel_ares_request(exec_ctx, r->pending_request); } - if (r->next_completion != NULL) { - *r->target_result = NULL; + if (r->next_completion != nullptr) { + *r->target_result = nullptr; GRPC_CLOSURE_SCHED( exec_ctx, r->next_completion, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Resolver Shutdown")); - r->next_completion = NULL; + r->next_completion = nullptr; } } -static void dns_ares_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - ares_dns_resolver *r = (ares_dns_resolver *)resolver; +static void dns_ares_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + ares_dns_resolver* r = (ares_dns_resolver*)resolver; if (!r->resolving) { grpc_backoff_reset(&r->backoff_state); dns_ares_start_resolving_locked(exec_ctx, r); } } -static void dns_ares_on_retry_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - ares_dns_resolver *r = (ares_dns_resolver *)arg; +static void dns_ares_on_retry_timer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + ares_dns_resolver* r = (ares_dns_resolver*)arg; r->have_retry_timer = false; if (error == GRPC_ERROR_NONE) { if (!r->resolving) { @@ -154,8 +154,8 @@ static void dns_ares_on_retry_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer"); } -static bool value_in_json_array(grpc_json *array, const char *value) { - for (grpc_json *entry = array->child; entry != NULL; entry = entry->next) { +static bool value_in_json_array(grpc_json* array, const char* value) { + for (grpc_json* entry = array->child; entry != nullptr; entry = entry->next) { if (entry->type == GRPC_JSON_STRING && strcmp(entry->value, value) == 0) { return true; } @@ -163,49 +163,50 @@ static bool value_in_json_array(grpc_json *array, const char *value) { return false; } -static char *choose_service_config(char *service_config_choice_json) { - grpc_json *choices_json = grpc_json_parse_string(service_config_choice_json); - if (choices_json == NULL || choices_json->type != GRPC_JSON_ARRAY) { +static char* choose_service_config(char* service_config_choice_json) { + grpc_json* choices_json = grpc_json_parse_string(service_config_choice_json); + if (choices_json == nullptr || choices_json->type != GRPC_JSON_ARRAY) { gpr_log(GPR_ERROR, "cannot parse service config JSON string"); - return NULL; + return nullptr; } - char *service_config = NULL; - for (grpc_json *choice = choices_json->child; choice != NULL; + char* service_config = nullptr; + for (grpc_json* choice = choices_json->child; choice != nullptr; choice = choice->next) { if (choice->type != GRPC_JSON_OBJECT) { gpr_log(GPR_ERROR, "cannot parse service config JSON string"); break; } - grpc_json *service_config_json = NULL; - for (grpc_json *field = choice->child; field != NULL; field = field->next) { + grpc_json* service_config_json = nullptr; + for (grpc_json* field = choice->child; field != nullptr; + field = field->next) { // Check client language, if specified. if (strcmp(field->key, "clientLanguage") == 0) { if (field->type != GRPC_JSON_ARRAY || !value_in_json_array(field, "c++")) { - service_config_json = NULL; + service_config_json = nullptr; break; } } // Check client hostname, if specified. if (strcmp(field->key, "clientHostname") == 0) { - char *hostname = grpc_gethostname(); - if (hostname == NULL || field->type != GRPC_JSON_ARRAY || + char* hostname = grpc_gethostname(); + if (hostname == nullptr || field->type != GRPC_JSON_ARRAY || !value_in_json_array(field, hostname)) { - service_config_json = NULL; + service_config_json = nullptr; break; } } // Check percentage, if specified. if (strcmp(field->key, "percentage") == 0) { if (field->type != GRPC_JSON_NUMBER) { - service_config_json = NULL; + service_config_json = nullptr; break; } int random_pct = rand() % 100; int percentage; if (sscanf(field->value, "%d", &percentage) != 1 || random_pct > percentage || percentage == 0) { - service_config_json = NULL; + service_config_json = nullptr; break; } } @@ -216,7 +217,7 @@ static char *choose_service_config(char *service_config_choice_json) { } } } - if (service_config_json != NULL) { + if (service_config_json != nullptr) { service_config = grpc_json_dump_to_string(service_config_json, 0); break; } @@ -225,39 +226,39 @@ static char *choose_service_config(char *service_config_choice_json) { return service_config; } -static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - ares_dns_resolver *r = (ares_dns_resolver *)arg; - grpc_channel_args *result = NULL; +static void dns_ares_on_resolved_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + ares_dns_resolver* r = (ares_dns_resolver*)arg; + grpc_channel_args* result = nullptr; GPR_ASSERT(r->resolving); r->resolving = false; - r->pending_request = NULL; - if (r->lb_addresses != NULL) { - static const char *args_to_remove[2]; + r->pending_request = nullptr; + if (r->lb_addresses != nullptr) { + static const char* args_to_remove[2]; size_t num_args_to_remove = 0; grpc_arg new_args[3]; size_t num_args_to_add = 0; new_args[num_args_to_add++] = grpc_lb_addresses_create_channel_arg(r->lb_addresses); - grpc_service_config *service_config = NULL; - char *service_config_string = NULL; - if (r->service_config_json != NULL) { + grpc_service_config* service_config = nullptr; + char* service_config_string = nullptr; + if (r->service_config_json != nullptr) { service_config_string = choose_service_config(r->service_config_json); gpr_free(r->service_config_json); - if (service_config_string != NULL) { + if (service_config_string != nullptr) { gpr_log(GPR_INFO, "selected service config choice: %s", service_config_string); args_to_remove[num_args_to_remove++] = GRPC_ARG_SERVICE_CONFIG; new_args[num_args_to_add++] = grpc_channel_arg_string_create( - (char *)GRPC_ARG_SERVICE_CONFIG, service_config_string); + (char*)GRPC_ARG_SERVICE_CONFIG, service_config_string); service_config = grpc_service_config_create(service_config_string); - if (service_config != NULL) { - const char *lb_policy_name = + if (service_config != nullptr) { + const char* lb_policy_name = grpc_service_config_get_lb_policy_name(service_config); - if (lb_policy_name != NULL) { + if (lb_policy_name != nullptr) { args_to_remove[num_args_to_remove++] = GRPC_ARG_LB_POLICY_NAME; new_args[num_args_to_add++] = grpc_channel_arg_string_create( - (char *)GRPC_ARG_LB_POLICY_NAME, (char *)lb_policy_name); + (char*)GRPC_ARG_LB_POLICY_NAME, (char*)lb_policy_name); } } } @@ -265,13 +266,14 @@ static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, result = grpc_channel_args_copy_and_add_and_remove( r->channel_args, args_to_remove, num_args_to_remove, new_args, num_args_to_add); - if (service_config != NULL) grpc_service_config_destroy(service_config); + if (service_config != nullptr) grpc_service_config_destroy(service_config); gpr_free(service_config_string); grpc_lb_addresses_destroy(exec_ctx, r->lb_addresses); } else { - const char *msg = grpc_error_string(error); + const char* msg = grpc_error_string(error); gpr_log(GPR_DEBUG, "dns resolution failed: %s", msg); - grpc_millis next_try = grpc_backoff_step(exec_ctx, &r->backoff_state); + grpc_millis next_try = + grpc_backoff_step(exec_ctx, &r->backoff_state).next_attempt_start_time; grpc_millis timeout = next_try - grpc_exec_ctx_now(exec_ctx); gpr_log(GPR_INFO, "dns resolution failed (will retry): %s", grpc_error_string(error)); @@ -286,7 +288,7 @@ static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, grpc_timer_init(exec_ctx, &r->retry_timer, next_try, &r->dns_ares_on_retry_timer_locked); } - if (r->resolved_result != NULL) { + if (r->resolved_result != nullptr) { grpc_channel_args_destroy(exec_ctx, r->resolved_result); } r->resolved_result = result; @@ -295,12 +297,12 @@ static void dns_ares_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "dns-resolving"); } -static void dns_ares_next_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver, - grpc_channel_args **target_result, - grpc_closure *on_complete) { +static void dns_ares_next_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver, + grpc_channel_args** target_result, + grpc_closure* on_complete) { gpr_log(GPR_DEBUG, "dns_ares_next is called."); - ares_dns_resolver *r = (ares_dns_resolver *)resolver; + ares_dns_resolver* r = (ares_dns_resolver*)resolver; GPR_ASSERT(!r->next_completion); r->next_completion = on_complete; r->target_result = target_result; @@ -312,38 +314,38 @@ static void dns_ares_next_locked(grpc_exec_ctx *exec_ctx, } } -static void dns_ares_start_resolving_locked(grpc_exec_ctx *exec_ctx, - ares_dns_resolver *r) { +static void dns_ares_start_resolving_locked(grpc_exec_ctx* exec_ctx, + ares_dns_resolver* r) { GRPC_RESOLVER_REF(&r->base, "dns-resolving"); GPR_ASSERT(!r->resolving); r->resolving = true; - r->lb_addresses = NULL; - r->service_config_json = NULL; + r->lb_addresses = nullptr; + r->service_config_json = nullptr; r->pending_request = grpc_dns_lookup_ares( exec_ctx, r->dns_server, r->name_to_resolve, r->default_port, r->interested_parties, &r->dns_ares_on_resolved_locked, &r->lb_addresses, true /* check_grpclb */, - r->request_service_config ? &r->service_config_json : NULL); + r->request_service_config ? &r->service_config_json : nullptr); } -static void dns_ares_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - ares_dns_resolver *r) { - if (r->next_completion != NULL && +static void dns_ares_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + ares_dns_resolver* r) { + if (r->next_completion != nullptr && r->resolved_version != r->published_version) { - *r->target_result = r->resolved_result == NULL - ? NULL + *r->target_result = r->resolved_result == nullptr + ? nullptr : grpc_channel_args_copy(r->resolved_result); gpr_log(GPR_DEBUG, "dns_ares_maybe_finish_next_locked"); GRPC_CLOSURE_SCHED(exec_ctx, r->next_completion, GRPC_ERROR_NONE); - r->next_completion = NULL; + r->next_completion = nullptr; r->published_version = r->resolved_version; } } -static void dns_ares_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { +static void dns_ares_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* gr) { gpr_log(GPR_DEBUG, "dns_ares_destroy"); - ares_dns_resolver *r = (ares_dns_resolver *)gr; - if (r->resolved_result != NULL) { + ares_dns_resolver* r = (ares_dns_resolver*)gr; + if (r->resolved_result != nullptr) { grpc_channel_args_destroy(exec_ctx, r->resolved_result); } grpc_pollset_set_destroy(exec_ctx, r->interested_parties); @@ -354,15 +356,15 @@ static void dns_ares_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { gpr_free(r); } -static grpc_resolver *dns_ares_create(grpc_exec_ctx *exec_ctx, - grpc_resolver_args *args, - const char *default_port) { +static grpc_resolver* dns_ares_create(grpc_exec_ctx* exec_ctx, + grpc_resolver_args* args, + const char* default_port) { /* Get name from args. */ - const char *path = args->uri->path; + const char* path = args->uri->path; if (path[0] == '/') ++path; /* Create resolver. */ - ares_dns_resolver *r = - (ares_dns_resolver *)gpr_zalloc(sizeof(ares_dns_resolver)); + ares_dns_resolver* r = + (ares_dns_resolver*)gpr_zalloc(sizeof(ares_dns_resolver)); grpc_resolver_init(&r->base, &dns_ares_resolver_vtable, args->combiner); if (0 != strcmp(args->uri->authority, "")) { r->dns_server = gpr_strdup(args->uri->authority); @@ -370,20 +372,20 @@ static grpc_resolver *dns_ares_create(grpc_exec_ctx *exec_ctx, r->name_to_resolve = gpr_strdup(path); r->default_port = gpr_strdup(default_port); r->channel_args = grpc_channel_args_copy(args->args); - const grpc_arg *arg = grpc_channel_args_find( + const grpc_arg* arg = grpc_channel_args_find( r->channel_args, GRPC_ARG_SERVICE_CONFIG_DISABLE_RESOLUTION); r->request_service_config = !grpc_channel_arg_get_integer( arg, (grpc_integer_options){false, false, true}); r->interested_parties = grpc_pollset_set_create(); - if (args->pollset_set != NULL) { + if (args->pollset_set != nullptr) { grpc_pollset_set_add_pollset_set(exec_ctx, r->interested_parties, args->pollset_set); } - grpc_backoff_init(&r->backoff_state, GRPC_DNS_INITIAL_CONNECT_BACKOFF_SECONDS, - GRPC_DNS_RECONNECT_BACKOFF_MULTIPLIER, - GRPC_DNS_RECONNECT_JITTER, - GRPC_DNS_MIN_CONNECT_TIMEOUT_SECONDS * 1000, - GRPC_DNS_RECONNECT_MAX_BACKOFF_SECONDS * 1000); + grpc_backoff_init( + &r->backoff_state, GRPC_DNS_INITIAL_CONNECT_BACKOFF_SECONDS * 1000, + GRPC_DNS_RECONNECT_BACKOFF_MULTIPLIER, GRPC_DNS_RECONNECT_JITTER, + GRPC_DNS_MIN_CONNECT_TIMEOUT_SECONDS * 1000, + GRPC_DNS_RECONNECT_MAX_BACKOFF_SECONDS * 1000); GRPC_CLOSURE_INIT(&r->dns_ares_on_retry_timer_locked, dns_ares_on_retry_timer_locked, r, grpc_combiner_scheduler(r->base.combiner)); @@ -397,19 +399,19 @@ static grpc_resolver *dns_ares_create(grpc_exec_ctx *exec_ctx, * FACTORY */ -static void dns_ares_factory_ref(grpc_resolver_factory *factory) {} +static void dns_ares_factory_ref(grpc_resolver_factory* factory) {} -static void dns_ares_factory_unref(grpc_resolver_factory *factory) {} +static void dns_ares_factory_unref(grpc_resolver_factory* factory) {} -static grpc_resolver *dns_factory_create_resolver( - grpc_exec_ctx *exec_ctx, grpc_resolver_factory *factory, - grpc_resolver_args *args) { +static grpc_resolver* dns_factory_create_resolver( + grpc_exec_ctx* exec_ctx, grpc_resolver_factory* factory, + grpc_resolver_args* args) { return dns_ares_create(exec_ctx, args, "https"); } -static char *dns_ares_factory_get_default_host_name( - grpc_resolver_factory *factory, grpc_uri *uri) { - const char *path = uri->path; +static char* dns_ares_factory_get_default_host_name( + grpc_resolver_factory* factory, grpc_uri* uri) { + const char* path = uri->path; if (path[0] == '/') ++path; return gpr_strdup(path); } @@ -419,16 +421,16 @@ static const grpc_resolver_factory_vtable dns_ares_factory_vtable = { dns_ares_factory_get_default_host_name, "dns"}; static grpc_resolver_factory dns_resolver_factory = {&dns_ares_factory_vtable}; -static grpc_resolver_factory *dns_ares_resolver_factory_create() { +static grpc_resolver_factory* dns_ares_resolver_factory_create() { return &dns_resolver_factory; } extern "C" void grpc_resolver_dns_ares_init(void) { - char *resolver = gpr_getenv("GRPC_DNS_RESOLVER"); + char* resolver = gpr_getenv("GRPC_DNS_RESOLVER"); /* TODO(zyc): Turn on c-ares based resolver by default after the address sorter and the CNAME support are added. */ - if (resolver != NULL && gpr_stricmp(resolver, "ares") == 0) { - grpc_error *error = grpc_ares_init(); + if (resolver != nullptr && gpr_stricmp(resolver, "ares") == 0) { + grpc_error* error = grpc_ares_init(); if (error != GRPC_ERROR_NONE) { GRPC_LOG_IF_ERROR("ares_library_init() failed", error); return; @@ -440,8 +442,8 @@ extern "C" void grpc_resolver_dns_ares_init(void) { } extern "C" void grpc_resolver_dns_ares_shutdown(void) { - char *resolver = gpr_getenv("GRPC_DNS_RESOLVER"); - if (resolver != NULL && gpr_stricmp(resolver, "ares") == 0) { + char* resolver = gpr_getenv("GRPC_DNS_RESOLVER"); + if (resolver != nullptr && gpr_stricmp(resolver, "ares") == 0) { grpc_ares_cleanup(); } gpr_free(resolver); diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h index 3d4309f2fa..0062aa561a 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h @@ -19,6 +19,7 @@ #ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H #define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H +#include <ares.h> #include "src/core/lib/iomgr/exec_ctx.h" #include "src/core/lib/iomgr/pollset_set.h" @@ -31,31 +32,31 @@ typedef struct grpc_ares_ev_driver grpc_ares_ev_driver; /* Start \a ev_driver. It will keep working until all IO on its ares_channel is done, or grpc_ares_ev_driver_destroy() is called. It may notify the callbacks bound to its ares_channel when necessary. */ -void grpc_ares_ev_driver_start(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver); +void grpc_ares_ev_driver_start(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver); /* Returns the ares_channel owned by \a ev_driver. To bind a c-ares query to \a ev_driver, use the ares_channel owned by \a ev_driver as the arg of the query. */ -ares_channel *grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver *ev_driver); +ares_channel* grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver* ev_driver); /* Creates a new grpc_ares_ev_driver. Returns GRPC_ERROR_NONE if \a ev_driver is created successfully. */ -grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver, - grpc_pollset_set *pollset_set); +grpc_error* grpc_ares_ev_driver_create(grpc_ares_ev_driver** ev_driver, + grpc_pollset_set* pollset_set); /* Destroys \a ev_driver asynchronously. Pending lookups made on \a ev_driver will be cancelled and their on_done callbacks will be invoked with a status of ARES_ECANCELLED. */ -void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver); +void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver* ev_driver); /* Shutdown all the grpc_fds used by \a ev_driver */ -void grpc_ares_ev_driver_shutdown(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver); +void grpc_ares_ev_driver_shutdown(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver); #ifdef __cplusplus } #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.cc index c30cc93b6f..4cb068a41d 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.cc @@ -37,7 +37,7 @@ typedef struct fd_node { /** the owner of this fd node */ - grpc_ares_ev_driver *ev_driver; + grpc_ares_ev_driver* ev_driver; /** a closure wrapping on_readable_cb, which should be invoked when the grpc_fd in this node becomes readable. */ grpc_closure read_closure; @@ -45,12 +45,12 @@ typedef struct fd_node { grpc_fd in this node becomes writable. */ grpc_closure write_closure; /** next fd node in the list */ - struct fd_node *next; + struct fd_node* next; /** mutex guarding the rest of the state */ gpr_mu mu; /** the grpc_fd owned by this fd node */ - grpc_fd *fd; + grpc_fd* fd; /** if the readable closure has been registered */ bool readable_registered; /** if the writable closure has been registered */ @@ -63,42 +63,42 @@ struct grpc_ares_ev_driver { /** the ares_channel owned by this event driver */ ares_channel channel; /** pollset set for driving the IO events of the channel */ - grpc_pollset_set *pollset_set; + grpc_pollset_set* pollset_set; /** refcount of the event driver */ gpr_refcount refs; /** mutex guarding the rest of the state */ gpr_mu mu; /** a list of grpc_fd that this event driver is currently using. */ - fd_node *fds; + fd_node* fds; /** is this event driver currently working? */ bool working; /** is this event driver being shut down */ bool shutting_down; }; -static void grpc_ares_notify_on_event_locked(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver); +static void grpc_ares_notify_on_event_locked(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver); -static grpc_ares_ev_driver *grpc_ares_ev_driver_ref( - grpc_ares_ev_driver *ev_driver) { +static grpc_ares_ev_driver* grpc_ares_ev_driver_ref( + grpc_ares_ev_driver* ev_driver) { gpr_log(GPR_DEBUG, "Ref ev_driver %" PRIuPTR, (uintptr_t)ev_driver); gpr_ref(&ev_driver->refs); return ev_driver; } -static void grpc_ares_ev_driver_unref(grpc_ares_ev_driver *ev_driver) { +static void grpc_ares_ev_driver_unref(grpc_ares_ev_driver* ev_driver) { gpr_log(GPR_DEBUG, "Unref ev_driver %" PRIuPTR, (uintptr_t)ev_driver); if (gpr_unref(&ev_driver->refs)) { gpr_log(GPR_DEBUG, "destroy ev_driver %" PRIuPTR, (uintptr_t)ev_driver); - GPR_ASSERT(ev_driver->fds == NULL); + GPR_ASSERT(ev_driver->fds == nullptr); gpr_mu_destroy(&ev_driver->mu); ares_destroy(ev_driver->channel); gpr_free(ev_driver); } } -static void fd_node_destroy(grpc_exec_ctx *exec_ctx, fd_node *fdn) { +static void fd_node_destroy(grpc_exec_ctx* exec_ctx, fd_node* fdn) { gpr_log(GPR_DEBUG, "delete fd: %d", grpc_fd_wrapped_fd(fdn->fd)); GPR_ASSERT(!fdn->readable_registered); GPR_ASSERT(!fdn->writable_registered); @@ -106,34 +106,35 @@ static void fd_node_destroy(grpc_exec_ctx *exec_ctx, fd_node *fdn) { /* c-ares library has closed the fd inside grpc_fd. This fd may be picked up immediately by another thread, and should not be closed by the following grpc_fd_orphan. */ - grpc_fd_orphan(exec_ctx, fdn->fd, NULL, NULL, true /* already_closed */, + grpc_fd_orphan(exec_ctx, fdn->fd, nullptr, nullptr, true /* already_closed */, "c-ares query finished"); gpr_free(fdn); } -static void fd_node_shutdown(grpc_exec_ctx *exec_ctx, fd_node *fdn) { +static void fd_node_shutdown(grpc_exec_ctx* exec_ctx, fd_node* fdn) { gpr_mu_lock(&fdn->mu); fdn->shutting_down = true; if (!fdn->readable_registered && !fdn->writable_registered) { gpr_mu_unlock(&fdn->mu); fd_node_destroy(exec_ctx, fdn); } else { - grpc_fd_shutdown(exec_ctx, fdn->fd, GRPC_ERROR_CREATE_FROM_STATIC_STRING( - "c-ares fd shutdown")); + grpc_fd_shutdown( + exec_ctx, fdn->fd, + GRPC_ERROR_CREATE_FROM_STATIC_STRING("c-ares fd shutdown")); gpr_mu_unlock(&fdn->mu); } } -grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver, - grpc_pollset_set *pollset_set) { - *ev_driver = (grpc_ares_ev_driver *)gpr_malloc(sizeof(grpc_ares_ev_driver)); +grpc_error* grpc_ares_ev_driver_create(grpc_ares_ev_driver** ev_driver, + grpc_pollset_set* pollset_set) { + *ev_driver = (grpc_ares_ev_driver*)gpr_malloc(sizeof(grpc_ares_ev_driver)); int status = ares_init(&(*ev_driver)->channel); gpr_log(GPR_DEBUG, "grpc_ares_ev_driver_create"); if (status != ARES_SUCCESS) { - char *err_msg; + char* err_msg; gpr_asprintf(&err_msg, "Failed to init ares channel. C-ares error: %s", ares_strerror(status)); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(err_msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(err_msg); gpr_free(err_msg); gpr_free(*ev_driver); return err; @@ -141,13 +142,13 @@ grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver, gpr_mu_init(&(*ev_driver)->mu); gpr_ref_init(&(*ev_driver)->refs, 1); (*ev_driver)->pollset_set = pollset_set; - (*ev_driver)->fds = NULL; + (*ev_driver)->fds = nullptr; (*ev_driver)->working = false; (*ev_driver)->shutting_down = false; return GRPC_ERROR_NONE; } -void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver) { +void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver* ev_driver) { // It's not safe to shut down remaining fds here directly, becauses // ares_host_callback does not provide an exec_ctx. We mark the event driver // as being shut down. If the event driver is working, @@ -159,14 +160,15 @@ void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver) { grpc_ares_ev_driver_unref(ev_driver); } -void grpc_ares_ev_driver_shutdown(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver) { +void grpc_ares_ev_driver_shutdown(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver) { gpr_mu_lock(&ev_driver->mu); ev_driver->shutting_down = true; - fd_node *fn = ev_driver->fds; - while (fn != NULL) { - grpc_fd_shutdown(exec_ctx, fn->fd, GRPC_ERROR_CREATE_FROM_STATIC_STRING( - "grpc_ares_ev_driver_shutdown")); + fd_node* fn = ev_driver->fds; + while (fn != nullptr) { + grpc_fd_shutdown( + exec_ctx, fn->fd, + GRPC_ERROR_CREATE_FROM_STATIC_STRING("grpc_ares_ev_driver_shutdown")); fn = fn->next; } gpr_mu_unlock(&ev_driver->mu); @@ -174,33 +176,33 @@ void grpc_ares_ev_driver_shutdown(grpc_exec_ctx *exec_ctx, // Search fd in the fd_node list head. This is an O(n) search, the max possible // value of n is ARES_GETSOCK_MAXNUM (16). n is typically 1 - 2 in our tests. -static fd_node *pop_fd_node(fd_node **head, int fd) { +static fd_node* pop_fd_node(fd_node** head, int fd) { fd_node dummy_head; dummy_head.next = *head; - fd_node *node = &dummy_head; - while (node->next != NULL) { + fd_node* node = &dummy_head; + while (node->next != nullptr) { if (grpc_fd_wrapped_fd(node->next->fd) == fd) { - fd_node *ret = node->next; + fd_node* ret = node->next; node->next = node->next->next; *head = dummy_head.next; return ret; } node = node->next; } - return NULL; + return nullptr; } /* Check if \a fd is still readable */ -static bool grpc_ares_is_fd_still_readable(grpc_ares_ev_driver *ev_driver, +static bool grpc_ares_is_fd_still_readable(grpc_ares_ev_driver* ev_driver, int fd) { size_t bytes_available = 0; return ioctl(fd, FIONREAD, &bytes_available) == 0 && bytes_available > 0; } -static void on_readable_cb(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - fd_node *fdn = (fd_node *)arg; - grpc_ares_ev_driver *ev_driver = fdn->ev_driver; +static void on_readable_cb(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + fd_node* fdn = (fd_node*)arg; + grpc_ares_ev_driver* ev_driver = fdn->ev_driver; gpr_mu_lock(&fdn->mu); const int fd = grpc_fd_wrapped_fd(fdn->fd); fdn->readable_registered = false; @@ -232,10 +234,10 @@ static void on_readable_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_ares_ev_driver_unref(ev_driver); } -static void on_writable_cb(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - fd_node *fdn = (fd_node *)arg; - grpc_ares_ev_driver *ev_driver = fdn->ev_driver; +static void on_writable_cb(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + fd_node* fdn = (fd_node*)arg; + grpc_ares_ev_driver* ev_driver = fdn->ev_driver; gpr_mu_lock(&fdn->mu); const int fd = grpc_fd_wrapped_fd(fdn->fd); fdn->writable_registered = false; @@ -265,15 +267,15 @@ static void on_writable_cb(grpc_exec_ctx *exec_ctx, void *arg, grpc_ares_ev_driver_unref(ev_driver); } -ares_channel *grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver *ev_driver) { +ares_channel* grpc_ares_ev_driver_get_channel(grpc_ares_ev_driver* ev_driver) { return &ev_driver->channel; } // Get the file descriptors used by the ev_driver's ares channel, register // driver_closure with these filedescriptors. -static void grpc_ares_notify_on_event_locked(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver) { - fd_node *new_list = NULL; +static void grpc_ares_notify_on_event_locked(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver) { + fd_node* new_list = nullptr; if (!ev_driver->shutting_down) { ares_socket_t socks[ARES_GETSOCK_MAXNUM]; int socks_bitmask = @@ -281,12 +283,12 @@ static void grpc_ares_notify_on_event_locked(grpc_exec_ctx *exec_ctx, for (size_t i = 0; i < ARES_GETSOCK_MAXNUM; i++) { if (ARES_GETSOCK_READABLE(socks_bitmask, i) || ARES_GETSOCK_WRITABLE(socks_bitmask, i)) { - fd_node *fdn = pop_fd_node(&ev_driver->fds, socks[i]); + fd_node* fdn = pop_fd_node(&ev_driver->fds, socks[i]); // Create a new fd_node if sock[i] is not in the fd_node list. - if (fdn == NULL) { - char *fd_name; + if (fdn == nullptr) { + char* fd_name; gpr_asprintf(&fd_name, "ares_ev_driver-%" PRIuPTR, i); - fdn = (fd_node *)gpr_malloc(sizeof(fd_node)); + fdn = (fd_node*)gpr_malloc(sizeof(fd_node)); gpr_log(GPR_DEBUG, "new fd: %d", socks[i]); fdn->fd = grpc_fd_create(socks[i], fd_name); fdn->ev_driver = ev_driver; @@ -330,21 +332,21 @@ static void grpc_ares_notify_on_event_locked(grpc_exec_ctx *exec_ctx, // Any remaining fds in ev_driver->fds were not returned by ares_getsock() and // are therefore no longer in use, so they can be shut down and removed from // the list. - while (ev_driver->fds != NULL) { - fd_node *cur = ev_driver->fds; + while (ev_driver->fds != nullptr) { + fd_node* cur = ev_driver->fds; ev_driver->fds = ev_driver->fds->next; fd_node_shutdown(exec_ctx, cur); } ev_driver->fds = new_list; // If the ev driver has no working fd, all the tasks are done. - if (new_list == NULL) { + if (new_list == nullptr) { ev_driver->working = false; gpr_log(GPR_DEBUG, "ev driver stop working"); } } -void grpc_ares_ev_driver_start(grpc_exec_ctx *exec_ctx, - grpc_ares_ev_driver *ev_driver) { +void grpc_ares_ev_driver_start(grpc_exec_ctx* exec_ctx, + grpc_ares_ev_driver* ev_driver) { gpr_mu_lock(&ev_driver->mu); if (!ev_driver->working) { ev_driver->working = true; diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc index 04379975e1..7846576c11 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc @@ -51,13 +51,13 @@ struct grpc_ares_request { struct ares_addr_port_node dns_server_addr; /** following members are set in grpc_resolve_address_ares_impl */ /** closure to call when the request completes */ - grpc_closure *on_done; + grpc_closure* on_done; /** the pointer to receive the resolved addresses */ - grpc_lb_addresses **lb_addrs_out; + grpc_lb_addresses** lb_addrs_out; /** the pointer to receive the service config in JSON */ - char **service_config_json_out; + char** service_config_json_out; /** the evernt driver used by this request */ - grpc_ares_ev_driver *ev_driver; + grpc_ares_ev_driver* ev_driver; /** number of ongoing queries */ gpr_refcount pending_queries; @@ -66,15 +66,15 @@ struct grpc_ares_request { /** is there at least one successful query, set in on_done_cb */ bool success; /** the errors explaining the request failure, set in on_done_cb */ - grpc_error *error; + grpc_error* error; }; typedef struct grpc_ares_hostbyname_request { /** following members are set in create_hostbyname_request */ /** the top-level request instance */ - grpc_ares_request *parent_request; + grpc_ares_request* parent_request; /** host to resolve, parsed from the name to resolve */ - char *host; + char* host; /** port to fill in sockaddr_in, parsed from the name to resolve */ uint16_t port; /** is it a grpclb address */ @@ -83,7 +83,7 @@ typedef struct grpc_ares_hostbyname_request { static void do_basic_init(void) { gpr_mu_init(&g_init_mu); } -static uint16_t strhtons(const char *port) { +static uint16_t strhtons(const char* port) { if (strcmp(port, "http") == 0) { return htons(80); } else if (strcmp(port, "https") == 0) { @@ -92,17 +92,17 @@ static uint16_t strhtons(const char *port) { return htons((unsigned short)atoi(port)); } -static void grpc_ares_request_ref(grpc_ares_request *r) { +static void grpc_ares_request_ref(grpc_ares_request* r) { gpr_ref(&r->pending_queries); } -static void grpc_ares_request_unref(grpc_exec_ctx *exec_ctx, - grpc_ares_request *r) { +static void grpc_ares_request_unref(grpc_exec_ctx* exec_ctx, + grpc_ares_request* r) { /* If there are no pending queries, invoke on_done callback and destroy the request */ if (gpr_unref(&r->pending_queries)) { /* TODO(zyc): Sort results with RFC6724 before invoking on_done. */ - if (exec_ctx == NULL) { + if (exec_ctx == nullptr) { /* A new exec_ctx is created here, as the c-ares interface does not provide one in ares_host_callback. It's safe to schedule on_done with the newly created exec_ctx, since the caller has been warned not to @@ -120,10 +120,10 @@ static void grpc_ares_request_unref(grpc_exec_ctx *exec_ctx, } } -static grpc_ares_hostbyname_request *create_hostbyname_request( - grpc_ares_request *parent_request, char *host, uint16_t port, +static grpc_ares_hostbyname_request* create_hostbyname_request( + grpc_ares_request* parent_request, char* host, uint16_t port, bool is_balancer) { - grpc_ares_hostbyname_request *hr = (grpc_ares_hostbyname_request *)gpr_zalloc( + grpc_ares_hostbyname_request* hr = (grpc_ares_hostbyname_request*)gpr_zalloc( sizeof(grpc_ares_hostbyname_request)); hr->parent_request = parent_request; hr->host = gpr_strdup(host); @@ -133,32 +133,32 @@ static grpc_ares_hostbyname_request *create_hostbyname_request( return hr; } -static void destroy_hostbyname_request(grpc_exec_ctx *exec_ctx, - grpc_ares_hostbyname_request *hr) { +static void destroy_hostbyname_request(grpc_exec_ctx* exec_ctx, + grpc_ares_hostbyname_request* hr) { grpc_ares_request_unref(exec_ctx, hr->parent_request); gpr_free(hr->host); gpr_free(hr); } -static void on_hostbyname_done_cb(void *arg, int status, int timeouts, - struct hostent *hostent) { - grpc_ares_hostbyname_request *hr = (grpc_ares_hostbyname_request *)arg; - grpc_ares_request *r = hr->parent_request; +static void on_hostbyname_done_cb(void* arg, int status, int timeouts, + struct hostent* hostent) { + grpc_ares_hostbyname_request* hr = (grpc_ares_hostbyname_request*)arg; + grpc_ares_request* r = hr->parent_request; gpr_mu_lock(&r->mu); if (status == ARES_SUCCESS) { GRPC_ERROR_UNREF(r->error); r->error = GRPC_ERROR_NONE; r->success = true; - grpc_lb_addresses **lb_addresses = r->lb_addrs_out; - if (*lb_addresses == NULL) { - *lb_addresses = grpc_lb_addresses_create(0, NULL); + grpc_lb_addresses** lb_addresses = r->lb_addrs_out; + if (*lb_addresses == nullptr) { + *lb_addresses = grpc_lb_addresses_create(0, nullptr); } size_t prev_naddr = (*lb_addresses)->num_addresses; size_t i; - for (i = 0; hostent->h_addr_list[i] != NULL; i++) { + for (i = 0; hostent->h_addr_list[i] != nullptr; i++) { } (*lb_addresses)->num_addresses += i; - (*lb_addresses)->addresses = (grpc_lb_address *)gpr_realloc( + (*lb_addresses)->addresses = (grpc_lb_address*)gpr_realloc( (*lb_addresses)->addresses, sizeof(grpc_lb_address) * (*lb_addresses)->num_addresses); for (i = prev_naddr; i < (*lb_addresses)->num_addresses; i++) { @@ -174,8 +174,8 @@ static void on_hostbyname_done_cb(void *arg, int status, int timeouts, grpc_lb_addresses_set_address( *lb_addresses, i, &addr, addr_len, hr->is_balancer /* is_balancer */, - hr->is_balancer ? hr->host : NULL /* balancer_name */, - NULL /* user_data */); + hr->is_balancer ? hr->host : nullptr /* balancer_name */, + nullptr /* user_data */); char output[INET6_ADDRSTRLEN]; ares_inet_ntop(AF_INET6, &addr.sin6_addr, output, INET6_ADDRSTRLEN); gpr_log(GPR_DEBUG, @@ -195,8 +195,8 @@ static void on_hostbyname_done_cb(void *arg, int status, int timeouts, grpc_lb_addresses_set_address( *lb_addresses, i, &addr, addr_len, hr->is_balancer /* is_balancer */, - hr->is_balancer ? hr->host : NULL /* balancer_name */, - NULL /* user_data */); + hr->is_balancer ? hr->host : nullptr /* balancer_name */, + nullptr /* user_data */); char output[INET_ADDRSTRLEN]; ares_inet_ntop(AF_INET, &addr.sin_addr, output, INET_ADDRSTRLEN); gpr_log(GPR_DEBUG, @@ -208,10 +208,10 @@ static void on_hostbyname_done_cb(void *arg, int status, int timeouts, } } } else if (!r->success) { - char *error_msg; + char* error_msg; gpr_asprintf(&error_msg, "C-ares status is not ARES_SUCCESS: %s", ares_strerror(status)); - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); + grpc_error* error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); gpr_free(error_msg); if (r->error == GRPC_ERROR_NONE) { r->error = error; @@ -220,43 +220,43 @@ static void on_hostbyname_done_cb(void *arg, int status, int timeouts, } } gpr_mu_unlock(&r->mu); - destroy_hostbyname_request(NULL, hr); + destroy_hostbyname_request(nullptr, hr); } -static void on_srv_query_done_cb(void *arg, int status, int timeouts, - unsigned char *abuf, int alen) { - grpc_ares_request *r = (grpc_ares_request *)arg; +static void on_srv_query_done_cb(void* arg, int status, int timeouts, + unsigned char* abuf, int alen) { + grpc_ares_request* r = (grpc_ares_request*)arg; grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; gpr_log(GPR_DEBUG, "on_query_srv_done_cb"); if (status == ARES_SUCCESS) { gpr_log(GPR_DEBUG, "on_query_srv_done_cb ARES_SUCCESS"); - struct ares_srv_reply *reply; + struct ares_srv_reply* reply; const int parse_status = ares_parse_srv_reply(abuf, alen, &reply); if (parse_status == ARES_SUCCESS) { - ares_channel *channel = grpc_ares_ev_driver_get_channel(r->ev_driver); - for (struct ares_srv_reply *srv_it = reply; srv_it != NULL; + ares_channel* channel = grpc_ares_ev_driver_get_channel(r->ev_driver); + for (struct ares_srv_reply* srv_it = reply; srv_it != nullptr; srv_it = srv_it->next) { if (grpc_ipv6_loopback_available()) { - grpc_ares_hostbyname_request *hr = create_hostbyname_request( + grpc_ares_hostbyname_request* hr = create_hostbyname_request( r, srv_it->host, htons(srv_it->port), true /* is_balancer */); ares_gethostbyname(*channel, hr->host, AF_INET6, on_hostbyname_done_cb, hr); } - grpc_ares_hostbyname_request *hr = create_hostbyname_request( + grpc_ares_hostbyname_request* hr = create_hostbyname_request( r, srv_it->host, htons(srv_it->port), true /* is_balancer */); ares_gethostbyname(*channel, hr->host, AF_INET, on_hostbyname_done_cb, hr); grpc_ares_ev_driver_start(&exec_ctx, r->ev_driver); } } - if (reply != NULL) { + if (reply != nullptr) { ares_free_data(reply); } } else if (!r->success) { - char *error_msg; + char* error_msg; gpr_asprintf(&error_msg, "C-ares status is not ARES_SUCCESS: %s", ares_strerror(status)); - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); + grpc_error* error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); gpr_free(error_msg); if (r->error == GRPC_ERROR_NONE) { r->error = error; @@ -270,21 +270,21 @@ static void on_srv_query_done_cb(void *arg, int status, int timeouts, static const char g_service_config_attribute_prefix[] = "grpc_config="; -static void on_txt_done_cb(void *arg, int status, int timeouts, - unsigned char *buf, int len) { +static void on_txt_done_cb(void* arg, int status, int timeouts, + unsigned char* buf, int len) { gpr_log(GPR_DEBUG, "on_txt_done_cb"); - char *error_msg; - grpc_ares_request *r = (grpc_ares_request *)arg; + char* error_msg; + grpc_ares_request* r = (grpc_ares_request*)arg; const size_t prefix_len = sizeof(g_service_config_attribute_prefix) - 1; - struct ares_txt_ext *result = NULL; - struct ares_txt_ext *reply = NULL; - grpc_error *error = GRPC_ERROR_NONE; + struct ares_txt_ext* result = nullptr; + struct ares_txt_ext* reply = nullptr; + grpc_error* error = GRPC_ERROR_NONE; gpr_mu_lock(&r->mu); if (status != ARES_SUCCESS) goto fail; status = ares_parse_txt_reply_ext(buf, len, &reply); if (status != ARES_SUCCESS) goto fail; // Find service config in TXT record. - for (result = reply; result != NULL; result = result->next) { + for (result = reply; result != nullptr; result = result->next) { if (result->record_start && memcmp(result->txt, g_service_config_attribute_prefix, prefix_len) == 0) { @@ -292,14 +292,14 @@ static void on_txt_done_cb(void *arg, int status, int timeouts, } } // Found a service config record. - if (result != NULL) { + if (result != nullptr) { size_t service_config_len = result->length - prefix_len; - *r->service_config_json_out = (char *)gpr_malloc(service_config_len + 1); + *r->service_config_json_out = (char*)gpr_malloc(service_config_len + 1); memcpy(*r->service_config_json_out, result->txt + prefix_len, service_config_len); - for (result = result->next; result != NULL && !result->record_start; + for (result = result->next; result != nullptr && !result->record_start; result = result->next) { - *r->service_config_json_out = (char *)gpr_realloc( + *r->service_config_json_out = (char*)gpr_realloc( *r->service_config_json_out, service_config_len + result->length + 1); memcpy(*r->service_config_json_out + service_config_len, result->txt, result->length); @@ -323,18 +323,18 @@ fail: } done: gpr_mu_unlock(&r->mu); - grpc_ares_request_unref(NULL, r); + grpc_ares_request_unref(nullptr, r); } -static grpc_ares_request *grpc_dns_lookup_ares_impl( - grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name, - const char *default_port, grpc_pollset_set *interested_parties, - grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb, - char **service_config_json) { - grpc_error *error = GRPC_ERROR_NONE; - grpc_ares_hostbyname_request *hr = NULL; - grpc_ares_request *r = NULL; - ares_channel *channel = NULL; +static grpc_ares_request* grpc_dns_lookup_ares_impl( + grpc_exec_ctx* exec_ctx, const char* dns_server, const char* name, + const char* default_port, grpc_pollset_set* interested_parties, + grpc_closure* on_done, grpc_lb_addresses** addrs, bool check_grpclb, + char** service_config_json) { + grpc_error* error = GRPC_ERROR_NONE; + grpc_ares_hostbyname_request* hr = nullptr; + grpc_ares_request* r = nullptr; + ares_channel* channel = nullptr; /* TODO(zyc): Enable tracing after #9603 is checked in */ /* if (grpc_dns_trace) { gpr_log(GPR_DEBUG, "resolve_address (blocking): name=%s, default_port=%s", @@ -342,16 +342,16 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( } */ /* parse name, splitting it into host and port parts */ - char *host; - char *port; + char* host; + char* port; gpr_split_host_port(name, &host, &port); - if (host == NULL) { + if (host == nullptr) { error = grpc_error_set_str( GRPC_ERROR_CREATE_FROM_STATIC_STRING("unparseable host:port"), GRPC_ERROR_STR_TARGET_ADDRESS, grpc_slice_from_copied_string(name)); goto error_cleanup; - } else if (port == NULL) { - if (default_port == NULL) { + } else if (port == nullptr) { + if (default_port == nullptr) { error = grpc_error_set_str( GRPC_ERROR_CREATE_FROM_STATIC_STRING("no port in name"), GRPC_ERROR_STR_TARGET_ADDRESS, grpc_slice_from_copied_string(name)); @@ -360,11 +360,11 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( port = gpr_strdup(default_port); } - grpc_ares_ev_driver *ev_driver; + grpc_ares_ev_driver* ev_driver; error = grpc_ares_ev_driver_create(&ev_driver, interested_parties); if (error != GRPC_ERROR_NONE) goto error_cleanup; - r = (grpc_ares_request *)gpr_zalloc(sizeof(grpc_ares_request)); + r = (grpc_ares_request*)gpr_zalloc(sizeof(grpc_ares_request)); gpr_mu_init(&r->mu); r->ev_driver = ev_driver; r->on_done = on_done; @@ -375,12 +375,12 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( channel = grpc_ares_ev_driver_get_channel(r->ev_driver); // If dns_server is specified, use it. - if (dns_server != NULL) { + if (dns_server != nullptr) { gpr_log(GPR_INFO, "Using DNS server %s", dns_server); grpc_resolved_address addr; if (grpc_parse_ipv4_hostport(dns_server, &addr, false /* log_errors */)) { r->dns_server_addr.family = AF_INET; - struct sockaddr_in *in = (struct sockaddr_in *)addr.addr; + struct sockaddr_in* in = (struct sockaddr_in*)addr.addr; memcpy(&r->dns_server_addr.addr.addr4, &in->sin_addr, sizeof(struct in_addr)); r->dns_server_addr.tcp_port = grpc_sockaddr_get_port(&addr); @@ -388,7 +388,7 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( } else if (grpc_parse_ipv6_hostport(dns_server, &addr, false /* log_errors */)) { r->dns_server_addr.family = AF_INET6; - struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)addr.addr; + struct sockaddr_in6* in6 = (struct sockaddr_in6*)addr.addr; memcpy(&r->dns_server_addr.addr.addr6, &in6->sin6_addr, sizeof(struct in6_addr)); r->dns_server_addr.tcp_port = grpc_sockaddr_get_port(&addr); @@ -402,7 +402,7 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( } int status = ares_set_servers_ports(*channel, &r->dns_server_addr); if (status != ARES_SUCCESS) { - char *error_msg; + char* error_msg; gpr_asprintf(&error_msg, "C-ares status is not ARES_SUCCESS: %s", ares_strerror(status)); error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); @@ -423,15 +423,18 @@ static grpc_ares_request *grpc_dns_lookup_ares_impl( if (check_grpclb) { /* Query the SRV record */ grpc_ares_request_ref(r); - char *service_name; + char* service_name; gpr_asprintf(&service_name, "_grpclb._tcp.%s", host); ares_query(*channel, service_name, ns_c_in, ns_t_srv, on_srv_query_done_cb, r); gpr_free(service_name); } - if (service_config_json != NULL) { + if (service_config_json != nullptr) { grpc_ares_request_ref(r); - ares_search(*channel, hr->host, ns_c_in, ns_t_txt, on_txt_done_cb, r); + char* config_name; + gpr_asprintf(&config_name, "_grpc_config.%s", host); + ares_search(*channel, config_name, ns_c_in, ns_t_txt, on_txt_done_cb, r); + gpr_free(config_name); } /* TODO(zyc): Handle CNAME records here. */ grpc_ares_ev_driver_start(exec_ctx, r->ev_driver); @@ -444,32 +447,32 @@ error_cleanup: GRPC_CLOSURE_SCHED(exec_ctx, on_done, error); gpr_free(host); gpr_free(port); - return NULL; + return nullptr; } -grpc_ares_request *(*grpc_dns_lookup_ares)( - grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name, - const char *default_port, grpc_pollset_set *interested_parties, - grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb, - char **service_config_json) = grpc_dns_lookup_ares_impl; +grpc_ares_request* (*grpc_dns_lookup_ares)( + grpc_exec_ctx* exec_ctx, const char* dns_server, const char* name, + const char* default_port, grpc_pollset_set* interested_parties, + grpc_closure* on_done, grpc_lb_addresses** addrs, bool check_grpclb, + char** service_config_json) = grpc_dns_lookup_ares_impl; -void grpc_cancel_ares_request(grpc_exec_ctx *exec_ctx, grpc_ares_request *r) { +void grpc_cancel_ares_request(grpc_exec_ctx* exec_ctx, grpc_ares_request* r) { if (grpc_dns_lookup_ares == grpc_dns_lookup_ares_impl) { grpc_ares_ev_driver_shutdown(exec_ctx, r->ev_driver); } } -grpc_error *grpc_ares_init(void) { +grpc_error* grpc_ares_init(void) { gpr_once_init(&g_basic_init, do_basic_init); gpr_mu_lock(&g_init_mu); int status = ares_library_init(ARES_LIB_INIT_ALL); gpr_mu_unlock(&g_init_mu); if (status != ARES_SUCCESS) { - char *error_msg; + char* error_msg; gpr_asprintf(&error_msg, "ares_library_init failed: %s", ares_strerror(status)); - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); + grpc_error* error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_msg); gpr_free(error_msg); return error; } @@ -488,28 +491,28 @@ void grpc_ares_cleanup(void) { typedef struct grpc_resolve_address_ares_request { /** the pointer to receive the resolved addresses */ - grpc_resolved_addresses **addrs_out; + grpc_resolved_addresses** addrs_out; /** currently resolving lb addresses */ - grpc_lb_addresses *lb_addrs; + grpc_lb_addresses* lb_addrs; /** closure to call when the resolve_address_ares request completes */ - grpc_closure *on_resolve_address_done; + grpc_closure* on_resolve_address_done; /** a closure wrapping on_dns_lookup_done_cb, which should be invoked when the grpc_dns_lookup_ares operation is done. */ grpc_closure on_dns_lookup_done; } grpc_resolve_address_ares_request; -static void on_dns_lookup_done_cb(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_resolve_address_ares_request *r = - (grpc_resolve_address_ares_request *)arg; - grpc_resolved_addresses **resolved_addresses = r->addrs_out; - if (r->lb_addrs == NULL || r->lb_addrs->num_addresses == 0) { - *resolved_addresses = NULL; +static void on_dns_lookup_done_cb(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_resolve_address_ares_request* r = + (grpc_resolve_address_ares_request*)arg; + grpc_resolved_addresses** resolved_addresses = r->addrs_out; + if (r->lb_addrs == nullptr || r->lb_addrs->num_addresses == 0) { + *resolved_addresses = nullptr; } else { *resolved_addresses = - (grpc_resolved_addresses *)gpr_zalloc(sizeof(grpc_resolved_addresses)); + (grpc_resolved_addresses*)gpr_zalloc(sizeof(grpc_resolved_addresses)); (*resolved_addresses)->naddrs = r->lb_addrs->num_addresses; - (*resolved_addresses)->addrs = (grpc_resolved_address *)gpr_zalloc( + (*resolved_addresses)->addrs = (grpc_resolved_address*)gpr_zalloc( sizeof(grpc_resolved_address) * (*resolved_addresses)->naddrs); for (size_t i = 0; i < (*resolved_addresses)->naddrs; i++) { GPR_ASSERT(!r->lb_addrs->addresses[i].is_balancer); @@ -523,28 +526,28 @@ static void on_dns_lookup_done_cb(grpc_exec_ctx *exec_ctx, void *arg, gpr_free(r); } -static void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx, - const char *name, - const char *default_port, - grpc_pollset_set *interested_parties, - grpc_closure *on_done, - grpc_resolved_addresses **addrs) { - grpc_resolve_address_ares_request *r = - (grpc_resolve_address_ares_request *)gpr_zalloc( +static void grpc_resolve_address_ares_impl(grpc_exec_ctx* exec_ctx, + const char* name, + const char* default_port, + grpc_pollset_set* interested_parties, + grpc_closure* on_done, + grpc_resolved_addresses** addrs) { + grpc_resolve_address_ares_request* r = + (grpc_resolve_address_ares_request*)gpr_zalloc( sizeof(grpc_resolve_address_ares_request)); r->addrs_out = addrs; r->on_resolve_address_done = on_done; GRPC_CLOSURE_INIT(&r->on_dns_lookup_done, on_dns_lookup_done_cb, r, grpc_schedule_on_exec_ctx); - grpc_dns_lookup_ares(exec_ctx, NULL /* dns_server */, name, default_port, + grpc_dns_lookup_ares(exec_ctx, nullptr /* dns_server */, name, default_port, interested_parties, &r->on_dns_lookup_done, &r->lb_addrs, false /* check_grpclb */, - NULL /* service_config_json */); + nullptr /* service_config_json */); } void (*grpc_resolve_address_ares)( - grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, - grpc_pollset_set *interested_parties, grpc_closure *on_done, - grpc_resolved_addresses **addrs) = grpc_resolve_address_ares_impl; + grpc_exec_ctx* exec_ctx, const char* name, const char* default_port, + grpc_pollset_set* interested_parties, grpc_closure* on_done, + grpc_resolved_addresses** addrs) = grpc_resolve_address_ares_impl; #endif /* GRPC_ARES == 1 && !defined(GRPC_UV) */ diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h index 38fbea9aac..6882b7b1d1 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h @@ -36,12 +36,12 @@ typedef struct grpc_ares_request grpc_ares_request; must be called at least once before this function. \a on_done may be called directly in this function without being scheduled with \a exec_ctx, so it must not try to acquire locks that are being held by the caller. */ -extern void (*grpc_resolve_address_ares)(grpc_exec_ctx *exec_ctx, - const char *name, - const char *default_port, - grpc_pollset_set *interested_parties, - grpc_closure *on_done, - grpc_resolved_addresses **addresses); +extern void (*grpc_resolve_address_ares)(grpc_exec_ctx* exec_ctx, + const char* name, + const char* default_port, + grpc_pollset_set* interested_parties, + grpc_closure* on_done, + grpc_resolved_addresses** addresses); /* Asynchronously resolve \a name. It will try to resolve grpclb SRV records in addition to the normal address records. For normal address records, it uses @@ -50,19 +50,19 @@ extern void (*grpc_resolve_address_ares)(grpc_exec_ctx *exec_ctx, function. \a on_done may be called directly in this function without being scheduled with \a exec_ctx, so it must not try to acquire locks that are being held by the caller. */ -extern grpc_ares_request *(*grpc_dns_lookup_ares)( - grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name, - const char *default_port, grpc_pollset_set *interested_parties, - grpc_closure *on_done, grpc_lb_addresses **addresses, bool check_grpclb, - char **service_config_json); +extern grpc_ares_request* (*grpc_dns_lookup_ares)( + grpc_exec_ctx* exec_ctx, const char* dns_server, const char* name, + const char* default_port, grpc_pollset_set* interested_parties, + grpc_closure* on_done, grpc_lb_addresses** addresses, bool check_grpclb, + char** service_config_json); /* Cancel the pending grpc_ares_request \a request */ -void grpc_cancel_ares_request(grpc_exec_ctx *exec_ctx, - grpc_ares_request *request); +void grpc_cancel_ares_request(grpc_exec_ctx* exec_ctx, + grpc_ares_request* request); /* Initialize gRPC ares wrapper. Must be called at least once before grpc_resolve_address_ares(). */ -grpc_error *grpc_ares_init(void); +grpc_error* grpc_ares_init(void); /* Uninitialized gRPC ares wrapper. If there was more than one previous call to grpc_ares_init(), this function uninitializes the gRPC ares wrapper only if @@ -74,4 +74,4 @@ void grpc_ares_cleanup(void); #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc index f2587c4520..a68a7c47fb 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc @@ -25,36 +25,36 @@ struct grpc_ares_request { char val; }; -static grpc_ares_request *grpc_dns_lookup_ares_impl( - grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name, - const char *default_port, grpc_pollset_set *interested_parties, - grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb, - char **service_config_json) { +static grpc_ares_request* grpc_dns_lookup_ares_impl( + grpc_exec_ctx* exec_ctx, const char* dns_server, const char* name, + const char* default_port, grpc_pollset_set* interested_parties, + grpc_closure* on_done, grpc_lb_addresses** addrs, bool check_grpclb, + char** service_config_json) { return NULL; } -grpc_ares_request *(*grpc_dns_lookup_ares)( - grpc_exec_ctx *exec_ctx, const char *dns_server, const char *name, - const char *default_port, grpc_pollset_set *interested_parties, - grpc_closure *on_done, grpc_lb_addresses **addrs, bool check_grpclb, - char **service_config_json) = grpc_dns_lookup_ares_impl; +grpc_ares_request* (*grpc_dns_lookup_ares)( + grpc_exec_ctx* exec_ctx, const char* dns_server, const char* name, + const char* default_port, grpc_pollset_set* interested_parties, + grpc_closure* on_done, grpc_lb_addresses** addrs, bool check_grpclb, + char** service_config_json) = grpc_dns_lookup_ares_impl; -void grpc_cancel_ares_request(grpc_exec_ctx *exec_ctx, grpc_ares_request *r) {} +void grpc_cancel_ares_request(grpc_exec_ctx* exec_ctx, grpc_ares_request* r) {} -grpc_error *grpc_ares_init(void) { return GRPC_ERROR_NONE; } +grpc_error* grpc_ares_init(void) { return GRPC_ERROR_NONE; } void grpc_ares_cleanup(void) {} -static void grpc_resolve_address_ares_impl(grpc_exec_ctx *exec_ctx, - const char *name, - const char *default_port, - grpc_pollset_set *interested_parties, - grpc_closure *on_done, - grpc_resolved_addresses **addrs) {} +static void grpc_resolve_address_ares_impl(grpc_exec_ctx* exec_ctx, + const char* name, + const char* default_port, + grpc_pollset_set* interested_parties, + grpc_closure* on_done, + grpc_resolved_addresses** addrs) {} void (*grpc_resolve_address_ares)( - grpc_exec_ctx *exec_ctx, const char *name, const char *default_port, - grpc_pollset_set *interested_parties, grpc_closure *on_done, - grpc_resolved_addresses **addrs) = grpc_resolve_address_ares_impl; + grpc_exec_ctx* exec_ctx, const char* name, const char* default_port, + grpc_pollset_set* interested_parties, grpc_closure* on_done, + grpc_resolved_addresses** addrs) = grpc_resolve_address_ares_impl; #endif /* GRPC_ARES != 1 || defined(GRPC_UV) */ diff --git a/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc index e669b6dfc7..589c74807f 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc @@ -45,13 +45,13 @@ typedef struct { /** base class: must be first */ grpc_resolver base; /** name to resolve */ - char *name_to_resolve; + char* name_to_resolve; /** default port to use */ - char *default_port; + char* default_port; /** channel args. */ - grpc_channel_args *channel_args; + grpc_channel_args* channel_args; /** pollset_set to drive the name resolution process */ - grpc_pollset_set *interested_parties; + grpc_pollset_set* interested_parties; /** are we currently resolving? */ bool resolving; @@ -60,11 +60,11 @@ typedef struct { /** which version of the result is current? */ int resolved_version; /** pending next completion, or NULL */ - grpc_closure *next_completion; + grpc_closure* next_completion; /** target result address for next completion */ - grpc_channel_args **target_result; + grpc_channel_args** target_result; /** current (fully resolved) result */ - grpc_channel_args *resolved_result; + grpc_channel_args* resolved_result; /** retry timer */ bool have_retry_timer; grpc_timer retry_timer; @@ -73,55 +73,55 @@ typedef struct { grpc_backoff backoff_state; /** currently resolving addresses */ - grpc_resolved_addresses *addresses; + grpc_resolved_addresses* addresses; } dns_resolver; -static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r); +static void dns_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* r); -static void dns_start_resolving_locked(grpc_exec_ctx *exec_ctx, - dns_resolver *r); -static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - dns_resolver *r); +static void dns_start_resolving_locked(grpc_exec_ctx* exec_ctx, + dns_resolver* r); +static void dns_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + dns_resolver* r); -static void dns_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r); -static void dns_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *r); -static void dns_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r, - grpc_channel_args **target_result, - grpc_closure *on_complete); +static void dns_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r); +static void dns_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* r); +static void dns_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r, + grpc_channel_args** target_result, + grpc_closure* on_complete); static const grpc_resolver_vtable dns_resolver_vtable = { dns_destroy, dns_shutdown_locked, dns_channel_saw_error_locked, dns_next_locked}; -static void dns_shutdown_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - dns_resolver *r = (dns_resolver *)resolver; +static void dns_shutdown_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + dns_resolver* r = (dns_resolver*)resolver; if (r->have_retry_timer) { grpc_timer_cancel(exec_ctx, &r->retry_timer); } - if (r->next_completion != NULL) { - *r->target_result = NULL; + if (r->next_completion != nullptr) { + *r->target_result = nullptr; GRPC_CLOSURE_SCHED( exec_ctx, r->next_completion, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Resolver Shutdown")); - r->next_completion = NULL; + r->next_completion = nullptr; } } -static void dns_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - dns_resolver *r = (dns_resolver *)resolver; +static void dns_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + dns_resolver* r = (dns_resolver*)resolver; if (!r->resolving) { grpc_backoff_reset(&r->backoff_state); dns_start_resolving_locked(exec_ctx, r); } } -static void dns_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_channel_args **target_result, - grpc_closure *on_complete) { - dns_resolver *r = (dns_resolver *)resolver; +static void dns_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver, + grpc_channel_args** target_result, + grpc_closure* on_complete) { + dns_resolver* r = (dns_resolver*)resolver; GPR_ASSERT(!r->next_completion); r->next_completion = on_complete; r->target_result = target_result; @@ -133,9 +133,9 @@ static void dns_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, } } -static void dns_on_retry_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - dns_resolver *r = (dns_resolver *)arg; +static void dns_on_retry_timer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + dns_resolver* r = (dns_resolver*)arg; r->have_retry_timer = false; if (error == GRPC_ERROR_NONE) { @@ -147,30 +147,31 @@ static void dns_on_retry_timer_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer"); } -static void dns_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - dns_resolver *r = (dns_resolver *)arg; - grpc_channel_args *result = NULL; +static void dns_on_resolved_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + dns_resolver* r = (dns_resolver*)arg; + grpc_channel_args* result = nullptr; GPR_ASSERT(r->resolving); r->resolving = false; GRPC_ERROR_REF(error); error = grpc_error_set_str(error, GRPC_ERROR_STR_TARGET_ADDRESS, grpc_slice_from_copied_string(r->name_to_resolve)); - if (r->addresses != NULL) { - grpc_lb_addresses *addresses = grpc_lb_addresses_create( - r->addresses->naddrs, NULL /* user_data_vtable */); + if (r->addresses != nullptr) { + grpc_lb_addresses* addresses = grpc_lb_addresses_create( + r->addresses->naddrs, nullptr /* user_data_vtable */); for (size_t i = 0; i < r->addresses->naddrs; ++i) { grpc_lb_addresses_set_address( addresses, i, &r->addresses->addrs[i].addr, r->addresses->addrs[i].len, false /* is_balancer */, - NULL /* balancer_name */, NULL /* user_data */); + nullptr /* balancer_name */, nullptr /* user_data */); } grpc_arg new_arg = grpc_lb_addresses_create_channel_arg(addresses); result = grpc_channel_args_copy_and_add(r->channel_args, &new_arg, 1); grpc_resolved_addresses_destroy(r->addresses); grpc_lb_addresses_destroy(exec_ctx, addresses); } else { - grpc_millis next_try = grpc_backoff_step(exec_ctx, &r->backoff_state); + grpc_millis next_try = + grpc_backoff_step(exec_ctx, &r->backoff_state).next_attempt_start_time; grpc_millis timeout = next_try - grpc_exec_ctx_now(exec_ctx); gpr_log(GPR_INFO, "dns resolution failed (will retry): %s", grpc_error_string(error)); @@ -186,7 +187,7 @@ static void dns_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, grpc_combiner_scheduler(r->base.combiner)); grpc_timer_init(exec_ctx, &r->retry_timer, next_try, &r->on_retry); } - if (r->resolved_result != NULL) { + if (r->resolved_result != nullptr) { grpc_channel_args_destroy(exec_ctx, r->resolved_result); } r->resolved_result = result; @@ -197,12 +198,12 @@ static void dns_on_resolved_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "dns-resolving"); } -static void dns_start_resolving_locked(grpc_exec_ctx *exec_ctx, - dns_resolver *r) { +static void dns_start_resolving_locked(grpc_exec_ctx* exec_ctx, + dns_resolver* r) { GRPC_RESOLVER_REF(&r->base, "dns-resolving"); GPR_ASSERT(!r->resolving); r->resolving = true; - r->addresses = NULL; + r->addresses = nullptr; grpc_resolve_address( exec_ctx, r->name_to_resolve, r->default_port, r->interested_parties, GRPC_CLOSURE_CREATE(dns_on_resolved_locked, r, @@ -210,22 +211,22 @@ static void dns_start_resolving_locked(grpc_exec_ctx *exec_ctx, &r->addresses); } -static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - dns_resolver *r) { - if (r->next_completion != NULL && +static void dns_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + dns_resolver* r) { + if (r->next_completion != nullptr && r->resolved_version != r->published_version) { - *r->target_result = r->resolved_result == NULL - ? NULL + *r->target_result = r->resolved_result == nullptr + ? nullptr : grpc_channel_args_copy(r->resolved_result); GRPC_CLOSURE_SCHED(exec_ctx, r->next_completion, GRPC_ERROR_NONE); - r->next_completion = NULL; + r->next_completion = nullptr; r->published_version = r->resolved_version; } } -static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { - dns_resolver *r = (dns_resolver *)gr; - if (r->resolved_result != NULL) { +static void dns_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* gr) { + dns_resolver* r = (dns_resolver*)gr; + if (r->resolved_result != nullptr) { grpc_channel_args_destroy(exec_ctx, r->resolved_result); } grpc_pollset_set_destroy(exec_ctx, r->interested_parties); @@ -235,32 +236,32 @@ static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { gpr_free(r); } -static grpc_resolver *dns_create(grpc_exec_ctx *exec_ctx, - grpc_resolver_args *args, - const char *default_port) { +static grpc_resolver* dns_create(grpc_exec_ctx* exec_ctx, + grpc_resolver_args* args, + const char* default_port) { if (0 != strcmp(args->uri->authority, "")) { gpr_log(GPR_ERROR, "authority based dns uri's not supported"); - return NULL; + return nullptr; } // Get name from args. - char *path = args->uri->path; + char* path = args->uri->path; if (path[0] == '/') ++path; // Create resolver. - dns_resolver *r = (dns_resolver *)gpr_zalloc(sizeof(dns_resolver)); + dns_resolver* r = (dns_resolver*)gpr_zalloc(sizeof(dns_resolver)); grpc_resolver_init(&r->base, &dns_resolver_vtable, args->combiner); r->name_to_resolve = gpr_strdup(path); r->default_port = gpr_strdup(default_port); r->channel_args = grpc_channel_args_copy(args->args); r->interested_parties = grpc_pollset_set_create(); - if (args->pollset_set != NULL) { + if (args->pollset_set != nullptr) { grpc_pollset_set_add_pollset_set(exec_ctx, r->interested_parties, args->pollset_set); } - grpc_backoff_init(&r->backoff_state, GRPC_DNS_INITIAL_CONNECT_BACKOFF_SECONDS, - GRPC_DNS_RECONNECT_BACKOFF_MULTIPLIER, - GRPC_DNS_RECONNECT_JITTER, - GRPC_DNS_MIN_CONNECT_TIMEOUT_SECONDS * 1000, - GRPC_DNS_RECONNECT_MAX_BACKOFF_SECONDS * 1000); + grpc_backoff_init( + &r->backoff_state, GRPC_DNS_INITIAL_CONNECT_BACKOFF_SECONDS * 1000, + GRPC_DNS_RECONNECT_BACKOFF_MULTIPLIER, GRPC_DNS_RECONNECT_JITTER, + GRPC_DNS_MIN_CONNECT_TIMEOUT_SECONDS * 1000, + GRPC_DNS_RECONNECT_MAX_BACKOFF_SECONDS * 1000); return &r->base; } @@ -268,19 +269,19 @@ static grpc_resolver *dns_create(grpc_exec_ctx *exec_ctx, * FACTORY */ -static void dns_factory_ref(grpc_resolver_factory *factory) {} +static void dns_factory_ref(grpc_resolver_factory* factory) {} -static void dns_factory_unref(grpc_resolver_factory *factory) {} +static void dns_factory_unref(grpc_resolver_factory* factory) {} -static grpc_resolver *dns_factory_create_resolver( - grpc_exec_ctx *exec_ctx, grpc_resolver_factory *factory, - grpc_resolver_args *args) { +static grpc_resolver* dns_factory_create_resolver( + grpc_exec_ctx* exec_ctx, grpc_resolver_factory* factory, + grpc_resolver_args* args) { return dns_create(exec_ctx, args, "https"); } -static char *dns_factory_get_default_host_name(grpc_resolver_factory *factory, - grpc_uri *uri) { - const char *path = uri->path; +static char* dns_factory_get_default_host_name(grpc_resolver_factory* factory, + grpc_uri* uri) { + const char* path = uri->path; if (path[0] == '/') ++path; return gpr_strdup(path); } @@ -290,19 +291,19 @@ static const grpc_resolver_factory_vtable dns_factory_vtable = { dns_factory_get_default_host_name, "dns"}; static grpc_resolver_factory dns_resolver_factory = {&dns_factory_vtable}; -static grpc_resolver_factory *dns_resolver_factory_create() { +static grpc_resolver_factory* dns_resolver_factory_create() { return &dns_resolver_factory; } extern "C" void grpc_resolver_dns_native_init(void) { - char *resolver = gpr_getenv("GRPC_DNS_RESOLVER"); - if (resolver != NULL && gpr_stricmp(resolver, "native") == 0) { + char* resolver = gpr_getenv("GRPC_DNS_RESOLVER"); + if (resolver != nullptr && gpr_stricmp(resolver, "native") == 0) { gpr_log(GPR_DEBUG, "Using native dns resolver"); grpc_register_resolver_type(dns_resolver_factory_create()); } else { - grpc_resolver_factory *existing_factory = + grpc_resolver_factory* existing_factory = grpc_resolver_factory_lookup("dns"); - if (existing_factory == NULL) { + if (existing_factory == nullptr) { gpr_log(GPR_DEBUG, "Using native dns resolver"); grpc_register_resolver_type(dns_resolver_factory_create()); } else { diff --git a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc index ed5b1011fb..85d7090144 100644 --- a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc @@ -78,31 +78,31 @@ static void fake_resolver_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* gr) { static void fake_resolver_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver) { fake_resolver* r = (fake_resolver*)resolver; - if (r->next_completion != NULL) { - *r->target_result = NULL; + if (r->next_completion != nullptr) { + *r->target_result = nullptr; GRPC_CLOSURE_SCHED( exec_ctx, r->next_completion, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Resolver Shutdown")); - r->next_completion = NULL; + r->next_completion = nullptr; } } static void fake_resolver_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, fake_resolver* r) { - if (r->next_completion != NULL && r->next_results != NULL) { + if (r->next_completion != nullptr && r->next_results != nullptr) { *r->target_result = grpc_channel_args_union(r->next_results, r->channel_args); grpc_channel_args_destroy(exec_ctx, r->next_results); - r->next_results = NULL; + r->next_results = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, r->next_completion, GRPC_ERROR_NONE); - r->next_completion = NULL; + r->next_completion = nullptr; } } static void fake_resolver_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* resolver) { fake_resolver* r = (fake_resolver*)resolver; - if (r->next_results == NULL && r->results_upon_error != NULL) { + if (r->next_results == nullptr && r->results_upon_error != nullptr) { // Pretend we re-resolved. r->next_results = grpc_channel_args_copy(r->results_upon_error); } @@ -162,11 +162,11 @@ static void set_response_closure_fn(grpc_exec_ctx* exec_ctx, void* arg, set_response_closure_arg* closure_arg = (set_response_closure_arg*)arg; grpc_fake_resolver_response_generator* generator = closure_arg->generator; fake_resolver* r = generator->resolver; - if (r->next_results != NULL) { + if (r->next_results != nullptr) { grpc_channel_args_destroy(exec_ctx, r->next_results); } r->next_results = closure_arg->next_response; - if (r->results_upon_error != NULL) { + if (r->results_upon_error != nullptr) { grpc_channel_args_destroy(exec_ctx, r->results_upon_error); } r->results_upon_error = grpc_channel_args_copy(closure_arg->next_response); @@ -177,7 +177,7 @@ static void set_response_closure_fn(grpc_exec_ctx* exec_ctx, void* arg, void grpc_fake_resolver_response_generator_set_response( grpc_exec_ctx* exec_ctx, grpc_fake_resolver_response_generator* generator, grpc_channel_args* next_response) { - GPR_ASSERT(generator->resolver != NULL); + GPR_ASSERT(generator->resolver != nullptr); set_response_closure_arg* closure_arg = (set_response_closure_arg*)gpr_zalloc(sizeof(*closure_arg)); closure_arg->generator = generator; @@ -220,7 +220,7 @@ grpc_fake_resolver_response_generator* grpc_fake_resolver_get_response_generator(const grpc_channel_args* args) { const grpc_arg* arg = grpc_channel_args_find(args, GRPC_ARG_FAKE_RESOLVER_RESPONSE_GENERATOR); - if (arg == NULL || arg->type != GRPC_ARG_POINTER) return NULL; + if (arg == nullptr || arg->type != GRPC_ARG_POINTER) return nullptr; return (grpc_fake_resolver_response_generator*)arg->value.pointer.p; } @@ -240,7 +240,7 @@ static grpc_resolver* fake_resolver_create(grpc_exec_ctx* exec_ctx, grpc_resolver_init(&r->base, &fake_resolver_vtable, args->combiner); grpc_fake_resolver_response_generator* response_generator = grpc_fake_resolver_get_response_generator(args->args); - if (response_generator != NULL) response_generator->resolver = r; + if (response_generator != nullptr) response_generator->resolver = r; return &r->base; } diff --git a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h index 95c3bafed8..3f341fa8ed 100644 --- a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h +++ b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h @@ -65,4 +65,4 @@ void grpc_fake_resolver_response_generator_unref( #endif #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FAKE_FAKE_RESOLVER_H \ - */ + */ diff --git a/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc index dda9542325..1da8ab9161 100644 --- a/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc @@ -41,115 +41,115 @@ typedef struct { /** base class: must be first */ grpc_resolver base; /** the addresses that we've 'resolved' */ - grpc_lb_addresses *addresses; + grpc_lb_addresses* addresses; /** channel args */ - grpc_channel_args *channel_args; + grpc_channel_args* channel_args; /** have we published? */ bool published; /** pending next completion, or NULL */ - grpc_closure *next_completion; + grpc_closure* next_completion; /** target result address for next completion */ - grpc_channel_args **target_result; + grpc_channel_args** target_result; } sockaddr_resolver; -static void sockaddr_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r); +static void sockaddr_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* r); -static void sockaddr_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - sockaddr_resolver *r); +static void sockaddr_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + sockaddr_resolver* r); -static void sockaddr_shutdown_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r); -static void sockaddr_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *r); -static void sockaddr_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *r, - grpc_channel_args **target_result, - grpc_closure *on_complete); +static void sockaddr_shutdown_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r); +static void sockaddr_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* r); +static void sockaddr_next_locked(grpc_exec_ctx* exec_ctx, grpc_resolver* r, + grpc_channel_args** target_result, + grpc_closure* on_complete); static const grpc_resolver_vtable sockaddr_resolver_vtable = { sockaddr_destroy, sockaddr_shutdown_locked, sockaddr_channel_saw_error_locked, sockaddr_next_locked}; -static void sockaddr_shutdown_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - sockaddr_resolver *r = (sockaddr_resolver *)resolver; - if (r->next_completion != NULL) { - *r->target_result = NULL; +static void sockaddr_shutdown_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + sockaddr_resolver* r = (sockaddr_resolver*)resolver; + if (r->next_completion != nullptr) { + *r->target_result = nullptr; GRPC_CLOSURE_SCHED( exec_ctx, r->next_completion, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Resolver Shutdown")); - r->next_completion = NULL; + r->next_completion = nullptr; } } -static void sockaddr_channel_saw_error_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - sockaddr_resolver *r = (sockaddr_resolver *)resolver; +static void sockaddr_channel_saw_error_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver) { + sockaddr_resolver* r = (sockaddr_resolver*)resolver; r->published = false; sockaddr_maybe_finish_next_locked(exec_ctx, r); } -static void sockaddr_next_locked(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver, - grpc_channel_args **target_result, - grpc_closure *on_complete) { - sockaddr_resolver *r = (sockaddr_resolver *)resolver; +static void sockaddr_next_locked(grpc_exec_ctx* exec_ctx, + grpc_resolver* resolver, + grpc_channel_args** target_result, + grpc_closure* on_complete) { + sockaddr_resolver* r = (sockaddr_resolver*)resolver; GPR_ASSERT(!r->next_completion); r->next_completion = on_complete; r->target_result = target_result; sockaddr_maybe_finish_next_locked(exec_ctx, r); } -static void sockaddr_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx, - sockaddr_resolver *r) { - if (r->next_completion != NULL && !r->published) { +static void sockaddr_maybe_finish_next_locked(grpc_exec_ctx* exec_ctx, + sockaddr_resolver* r) { + if (r->next_completion != nullptr && !r->published) { r->published = true; grpc_arg arg = grpc_lb_addresses_create_channel_arg(r->addresses); *r->target_result = grpc_channel_args_copy_and_add(r->channel_args, &arg, 1); GRPC_CLOSURE_SCHED(exec_ctx, r->next_completion, GRPC_ERROR_NONE); - r->next_completion = NULL; + r->next_completion = nullptr; } } -static void sockaddr_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) { - sockaddr_resolver *r = (sockaddr_resolver *)gr; +static void sockaddr_destroy(grpc_exec_ctx* exec_ctx, grpc_resolver* gr) { + sockaddr_resolver* r = (sockaddr_resolver*)gr; grpc_lb_addresses_destroy(exec_ctx, r->addresses); grpc_channel_args_destroy(exec_ctx, r->channel_args); gpr_free(r); } -static char *ip_get_default_authority(grpc_uri *uri) { - const char *path = uri->path; +static char* ip_get_default_authority(grpc_uri* uri) { + const char* path = uri->path; if (path[0] == '/') ++path; return gpr_strdup(path); } -static char *ipv4_get_default_authority(grpc_resolver_factory *factory, - grpc_uri *uri) { +static char* ipv4_get_default_authority(grpc_resolver_factory* factory, + grpc_uri* uri) { return ip_get_default_authority(uri); } -static char *ipv6_get_default_authority(grpc_resolver_factory *factory, - grpc_uri *uri) { +static char* ipv6_get_default_authority(grpc_resolver_factory* factory, + grpc_uri* uri) { return ip_get_default_authority(uri); } #ifdef GRPC_HAVE_UNIX_SOCKET -char *unix_get_default_authority(grpc_resolver_factory *factory, - grpc_uri *uri) { +char* unix_get_default_authority(grpc_resolver_factory* factory, + grpc_uri* uri) { return gpr_strdup("localhost"); } #endif -static void do_nothing(void *ignored) {} +static void do_nothing(void* ignored) {} -static grpc_resolver *sockaddr_create(grpc_exec_ctx *exec_ctx, - grpc_resolver_args *args, - bool parse(const grpc_uri *uri, - grpc_resolved_address *dst)) { +static grpc_resolver* sockaddr_create(grpc_exec_ctx* exec_ctx, + grpc_resolver_args* args, + bool parse(const grpc_uri* uri, + grpc_resolved_address* dst)) { if (0 != strcmp(args->uri->authority, "")) { gpr_log(GPR_ERROR, "authority based uri's not supported by the %s scheme", args->uri->scheme); - return NULL; + return nullptr; } /* Construct addresses. */ grpc_slice path_slice = @@ -157,12 +157,12 @@ static grpc_resolver *sockaddr_create(grpc_exec_ctx *exec_ctx, grpc_slice_buffer path_parts; grpc_slice_buffer_init(&path_parts); grpc_slice_split(path_slice, ",", &path_parts); - grpc_lb_addresses *addresses = - grpc_lb_addresses_create(path_parts.count, NULL /* user_data_vtable */); + grpc_lb_addresses* addresses = grpc_lb_addresses_create( + path_parts.count, nullptr /* user_data_vtable */); bool errors_found = false; for (size_t i = 0; i < addresses->num_addresses; i++) { grpc_uri ith_uri = *args->uri; - char *part_str = grpc_slice_to_c_string(path_parts.slices[i]); + char* part_str = grpc_slice_to_c_string(path_parts.slices[i]); ith_uri.path = part_str; if (!parse(&ith_uri, &addresses->addresses[i].address)) { errors_found = true; /* GPR_TRUE */ @@ -174,11 +174,11 @@ static grpc_resolver *sockaddr_create(grpc_exec_ctx *exec_ctx, grpc_slice_unref_internal(exec_ctx, path_slice); if (errors_found) { grpc_lb_addresses_destroy(exec_ctx, addresses); - return NULL; + return nullptr; } /* Instantiate resolver. */ - sockaddr_resolver *r = - (sockaddr_resolver *)gpr_zalloc(sizeof(sockaddr_resolver)); + sockaddr_resolver* r = + (sockaddr_resolver*)gpr_zalloc(sizeof(sockaddr_resolver)); r->addresses = addresses; r->channel_args = grpc_channel_args_copy(args->args); grpc_resolver_init(&r->base, &sockaddr_resolver_vtable, args->combiner); @@ -189,14 +189,14 @@ static grpc_resolver *sockaddr_create(grpc_exec_ctx *exec_ctx, * FACTORY */ -static void sockaddr_factory_ref(grpc_resolver_factory *factory) {} +static void sockaddr_factory_ref(grpc_resolver_factory* factory) {} -static void sockaddr_factory_unref(grpc_resolver_factory *factory) {} +static void sockaddr_factory_unref(grpc_resolver_factory* factory) {} #define DECL_FACTORY(name) \ - static grpc_resolver *name##_factory_create_resolver( \ - grpc_exec_ctx *exec_ctx, grpc_resolver_factory *factory, \ - grpc_resolver_args *args) { \ + static grpc_resolver* name##_factory_create_resolver( \ + grpc_exec_ctx* exec_ctx, grpc_resolver_factory* factory, \ + grpc_resolver_args* args) { \ return sockaddr_create(exec_ctx, args, grpc_parse_##name); \ } \ static const grpc_resolver_factory_vtable name##_factory_vtable = { \ diff --git a/src/core/ext/filters/client_channel/resolver_factory.cc b/src/core/ext/filters/client_channel/resolver_factory.cc index 6f0a7c1e36..1a289d9771 100644 --- a/src/core/ext/filters/client_channel/resolver_factory.cc +++ b/src/core/ext/filters/client_channel/resolver_factory.cc @@ -30,12 +30,12 @@ void grpc_resolver_factory_unref(grpc_resolver_factory* factory) { grpc_resolver* grpc_resolver_factory_create_resolver( grpc_exec_ctx* exec_ctx, grpc_resolver_factory* factory, grpc_resolver_args* args) { - if (factory == NULL) return NULL; + if (factory == nullptr) return nullptr; return factory->vtable->create_resolver(exec_ctx, factory, args); } char* grpc_resolver_factory_get_default_authority( grpc_resolver_factory* factory, grpc_uri* uri) { - if (factory == NULL) return NULL; + if (factory == nullptr) return nullptr; return factory->vtable->get_default_authority(factory, uri); } diff --git a/src/core/ext/filters/client_channel/resolver_factory.h b/src/core/ext/filters/client_channel/resolver_factory.h index c8b2c58db3..62555a4f01 100644 --- a/src/core/ext/filters/client_channel/resolver_factory.h +++ b/src/core/ext/filters/client_channel/resolver_factory.h @@ -32,44 +32,44 @@ typedef struct grpc_resolver_factory grpc_resolver_factory; typedef struct grpc_resolver_factory_vtable grpc_resolver_factory_vtable; struct grpc_resolver_factory { - const grpc_resolver_factory_vtable *vtable; + const grpc_resolver_factory_vtable* vtable; }; typedef struct grpc_resolver_args { - grpc_uri *uri; - const grpc_channel_args *args; - grpc_pollset_set *pollset_set; - grpc_combiner *combiner; + grpc_uri* uri; + const grpc_channel_args* args; + grpc_pollset_set* pollset_set; + grpc_combiner* combiner; } grpc_resolver_args; struct grpc_resolver_factory_vtable { - void (*ref)(grpc_resolver_factory *factory); - void (*unref)(grpc_resolver_factory *factory); + void (*ref)(grpc_resolver_factory* factory); + void (*unref)(grpc_resolver_factory* factory); /** Implementation of grpc_resolver_factory_create_resolver */ - grpc_resolver *(*create_resolver)(grpc_exec_ctx *exec_ctx, - grpc_resolver_factory *factory, - grpc_resolver_args *args); + grpc_resolver* (*create_resolver)(grpc_exec_ctx* exec_ctx, + grpc_resolver_factory* factory, + grpc_resolver_args* args); /** Implementation of grpc_resolver_factory_get_default_authority */ - char *(*get_default_authority)(grpc_resolver_factory *factory, grpc_uri *uri); + char* (*get_default_authority)(grpc_resolver_factory* factory, grpc_uri* uri); /** URI scheme that this factory implements */ - const char *scheme; + const char* scheme; }; -void grpc_resolver_factory_ref(grpc_resolver_factory *resolver); -void grpc_resolver_factory_unref(grpc_resolver_factory *resolver); +void grpc_resolver_factory_ref(grpc_resolver_factory* resolver); +void grpc_resolver_factory_unref(grpc_resolver_factory* resolver); /** Create a resolver instance for a name */ -grpc_resolver *grpc_resolver_factory_create_resolver( - grpc_exec_ctx *exec_ctx, grpc_resolver_factory *factory, - grpc_resolver_args *args); +grpc_resolver* grpc_resolver_factory_create_resolver( + grpc_exec_ctx* exec_ctx, grpc_resolver_factory* factory, + grpc_resolver_args* args); /** Return a (freshly allocated with gpr_malloc) string representing the default authority to use for this scheme. */ -char *grpc_resolver_factory_get_default_authority( - grpc_resolver_factory *factory, grpc_uri *uri); +char* grpc_resolver_factory_get_default_authority( + grpc_resolver_factory* factory, grpc_uri* uri); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/resolver_registry.cc b/src/core/ext/filters/client_channel/resolver_registry.cc index 1a0fb0bc3c..5da6114a3d 100644 --- a/src/core/ext/filters/client_channel/resolver_registry.cc +++ b/src/core/ext/filters/client_channel/resolver_registry.cc @@ -27,7 +27,7 @@ #define MAX_RESOLVERS 10 #define DEFAULT_RESOLVER_PREFIX_MAX_LENGTH 32 -static grpc_resolver_factory *g_all_of_the_resolvers[MAX_RESOLVERS]; +static grpc_resolver_factory* g_all_of_the_resolvers[MAX_RESOLVERS]; static int g_number_of_resolvers = 0; static char g_default_resolver_prefix[DEFAULT_RESOLVER_PREFIX_MAX_LENGTH] = @@ -49,7 +49,7 @@ void grpc_resolver_registry_shutdown(void) { } void grpc_resolver_registry_set_default_prefix( - const char *default_resolver_prefix) { + const char* default_resolver_prefix) { const size_t len = strlen(default_resolver_prefix); GPR_ASSERT(len < DEFAULT_RESOLVER_PREFIX_MAX_LENGTH && "default resolver prefix too long"); @@ -59,7 +59,7 @@ void grpc_resolver_registry_set_default_prefix( strcpy(g_default_resolver_prefix, default_resolver_prefix); } -void grpc_register_resolver_type(grpc_resolver_factory *factory) { +void grpc_register_resolver_type(grpc_resolver_factory* factory) { int i; for (i = 0; i < g_number_of_resolvers; i++) { GPR_ASSERT(0 != strcmp(factory->vtable->scheme, @@ -70,7 +70,7 @@ void grpc_register_resolver_type(grpc_resolver_factory *factory) { g_all_of_the_resolvers[g_number_of_resolvers++] = factory; } -static grpc_resolver_factory *lookup_factory(const char *name) { +static grpc_resolver_factory* lookup_factory(const char* name) { int i; for (i = 0; i < g_number_of_resolvers; i++) { @@ -78,35 +78,35 @@ static grpc_resolver_factory *lookup_factory(const char *name) { return g_all_of_the_resolvers[i]; } } - return NULL; + return nullptr; } -grpc_resolver_factory *grpc_resolver_factory_lookup(const char *name) { - grpc_resolver_factory *f = lookup_factory(name); +grpc_resolver_factory* grpc_resolver_factory_lookup(const char* name) { + grpc_resolver_factory* f = lookup_factory(name); if (f) grpc_resolver_factory_ref(f); return f; } -static grpc_resolver_factory *lookup_factory_by_uri(grpc_uri *uri) { - if (!uri) return NULL; +static grpc_resolver_factory* lookup_factory_by_uri(grpc_uri* uri) { + if (!uri) return nullptr; return lookup_factory(uri->scheme); } -static grpc_resolver_factory *resolve_factory(grpc_exec_ctx *exec_ctx, - const char *target, - grpc_uri **uri, - char **canonical_target) { - grpc_resolver_factory *factory = NULL; +static grpc_resolver_factory* resolve_factory(grpc_exec_ctx* exec_ctx, + const char* target, + grpc_uri** uri, + char** canonical_target) { + grpc_resolver_factory* factory = nullptr; - GPR_ASSERT(uri != NULL); + GPR_ASSERT(uri != nullptr); *uri = grpc_uri_parse(exec_ctx, target, 1); factory = lookup_factory_by_uri(*uri); - if (factory == NULL) { + if (factory == nullptr) { grpc_uri_destroy(*uri); gpr_asprintf(canonical_target, "%s%s", g_default_resolver_prefix, target); *uri = grpc_uri_parse(exec_ctx, *canonical_target, 1); factory = lookup_factory_by_uri(*uri); - if (factory == NULL) { + if (factory == nullptr) { grpc_uri_destroy(grpc_uri_parse(exec_ctx, target, 0)); grpc_uri_destroy(grpc_uri_parse(exec_ctx, *canonical_target, 0)); gpr_log(GPR_ERROR, "don't know how to resolve '%s' or '%s'", target, @@ -116,15 +116,15 @@ static grpc_resolver_factory *resolve_factory(grpc_exec_ctx *exec_ctx, return factory; } -grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target, - const grpc_channel_args *args, - grpc_pollset_set *pollset_set, - grpc_combiner *combiner) { - grpc_uri *uri = NULL; - char *canonical_target = NULL; - grpc_resolver_factory *factory = +grpc_resolver* grpc_resolver_create(grpc_exec_ctx* exec_ctx, const char* target, + const grpc_channel_args* args, + grpc_pollset_set* pollset_set, + grpc_combiner* combiner) { + grpc_uri* uri = nullptr; + char* canonical_target = nullptr; + grpc_resolver_factory* factory = resolve_factory(exec_ctx, target, &uri, &canonical_target); - grpc_resolver *resolver; + grpc_resolver* resolver; grpc_resolver_args resolver_args; memset(&resolver_args, 0, sizeof(resolver_args)); resolver_args.uri = uri; @@ -138,22 +138,22 @@ grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target, return resolver; } -char *grpc_get_default_authority(grpc_exec_ctx *exec_ctx, const char *target) { - grpc_uri *uri = NULL; - char *canonical_target = NULL; - grpc_resolver_factory *factory = +char* grpc_get_default_authority(grpc_exec_ctx* exec_ctx, const char* target) { + grpc_uri* uri = nullptr; + char* canonical_target = nullptr; + grpc_resolver_factory* factory = resolve_factory(exec_ctx, target, &uri, &canonical_target); - char *authority = grpc_resolver_factory_get_default_authority(factory, uri); + char* authority = grpc_resolver_factory_get_default_authority(factory, uri); grpc_uri_destroy(uri); gpr_free(canonical_target); return authority; } -char *grpc_resolver_factory_add_default_prefix_if_needed( - grpc_exec_ctx *exec_ctx, const char *target) { - grpc_uri *uri = NULL; - char *canonical_target = NULL; +char* grpc_resolver_factory_add_default_prefix_if_needed( + grpc_exec_ctx* exec_ctx, const char* target) { + grpc_uri* uri = nullptr; + char* canonical_target = nullptr; resolve_factory(exec_ctx, target, &uri, &canonical_target); grpc_uri_destroy(uri); - return canonical_target == NULL ? gpr_strdup(target) : canonical_target; + return canonical_target == nullptr ? gpr_strdup(target) : canonical_target; } diff --git a/src/core/ext/filters/client_channel/resolver_registry.h b/src/core/ext/filters/client_channel/resolver_registry.h index 06d0b99a35..01a2d0b18b 100644 --- a/src/core/ext/filters/client_channel/resolver_registry.h +++ b/src/core/ext/filters/client_channel/resolver_registry.h @@ -30,14 +30,14 @@ void grpc_resolver_registry_init(); void grpc_resolver_registry_shutdown(void); /** Set the default URI prefix to \a default_prefix. */ -void grpc_resolver_registry_set_default_prefix(const char *default_prefix); +void grpc_resolver_registry_set_default_prefix(const char* default_prefix); /** Register a resolver type. URI's of \a scheme will be resolved with the given resolver. If \a priority is greater than zero, then the resolver will be eligible to resolve names that are passed in with no scheme. Higher priority resolvers will be tried before lower priority schemes. */ -void grpc_register_resolver_type(grpc_resolver_factory *factory); +void grpc_register_resolver_type(grpc_resolver_factory* factory); /** Create a resolver given \a target. First tries to parse \a target as a URI. If this succeeds, tries @@ -52,23 +52,23 @@ void grpc_register_resolver_type(grpc_resolver_factory *factory); (typically the set of arguments passed in from the client API). \a pollset_set is used to drive IO in the name resolution process, it should not be NULL. */ -grpc_resolver *grpc_resolver_create(grpc_exec_ctx *exec_ctx, const char *target, - const grpc_channel_args *args, - grpc_pollset_set *pollset_set, - grpc_combiner *combiner); +grpc_resolver* grpc_resolver_create(grpc_exec_ctx* exec_ctx, const char* target, + const grpc_channel_args* args, + grpc_pollset_set* pollset_set, + grpc_combiner* combiner); /** Find a resolver factory given a name and return an (owned-by-the-caller) * reference to it */ -grpc_resolver_factory *grpc_resolver_factory_lookup(const char *name); +grpc_resolver_factory* grpc_resolver_factory_lookup(const char* name); /** Given a target, return a (freshly allocated with gpr_malloc) string representing the default authority to pass from a client. */ -char *grpc_get_default_authority(grpc_exec_ctx *exec_ctx, const char *target); +char* grpc_get_default_authority(grpc_exec_ctx* exec_ctx, const char* target); /** Returns a newly allocated string containing \a target, adding the default prefix if needed. */ -char *grpc_resolver_factory_add_default_prefix_if_needed( - grpc_exec_ctx *exec_ctx, const char *target); +char* grpc_resolver_factory_add_default_prefix_if_needed( + grpc_exec_ctx* exec_ctx, const char* target); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/retry_throttle.cc b/src/core/ext/filters/client_channel/retry_throttle.cc index 09dcade089..867d775151 100644 --- a/src/core/ext/filters/client_channel/retry_throttle.cc +++ b/src/core/ext/filters/client_channel/retry_throttle.cc @@ -48,7 +48,7 @@ static void get_replacement_throttle_data_if_needed( grpc_server_retry_throttle_data* new_throttle_data = (grpc_server_retry_throttle_data*)gpr_atm_acq_load( &(*throttle_data)->replacement); - if (new_throttle_data == NULL) return; + if (new_throttle_data == nullptr) return; *throttle_data = new_throttle_data; } } @@ -88,7 +88,7 @@ void grpc_server_retry_throttle_data_unref( grpc_server_retry_throttle_data* replacement = (grpc_server_retry_throttle_data*)gpr_atm_acq_load( &throttle_data->replacement); - if (replacement != NULL) { + if (replacement != nullptr) { grpc_server_retry_throttle_data_unref(replacement); } gpr_free(throttle_data); @@ -109,7 +109,7 @@ static grpc_server_retry_throttle_data* grpc_server_retry_throttle_data_create( // the token count by scaling proportionately to the old data. This // ensures that if we're already throttling retries on the old scale, // we will start out doing the same thing on the new one. - if (old_throttle_data != NULL) { + if (old_throttle_data != nullptr) { double token_fraction = (int)gpr_atm_acq_load(&old_throttle_data->milli_tokens) / (double)old_throttle_data->max_milli_tokens; @@ -119,7 +119,7 @@ static grpc_server_retry_throttle_data* grpc_server_retry_throttle_data_create( (gpr_atm)initial_milli_tokens); // If there was a pre-existing entry, mark it as stale and give it a // pointer to the new entry, which is its replacement. - if (old_throttle_data != NULL) { + if (old_throttle_data != nullptr) { grpc_server_retry_throttle_data_ref(throttle_data); gpr_atm_rel_store(&old_throttle_data->replacement, (gpr_atm)throttle_data); } @@ -170,7 +170,7 @@ void grpc_retry_throttle_map_init() { void grpc_retry_throttle_map_shutdown() { gpr_mu_destroy(&g_mu); - gpr_avl_unref(g_avl, NULL); + gpr_avl_unref(g_avl, nullptr); } grpc_server_retry_throttle_data* grpc_retry_throttle_map_get_data_for_server( @@ -178,12 +178,12 @@ grpc_server_retry_throttle_data* grpc_retry_throttle_map_get_data_for_server( gpr_mu_lock(&g_mu); grpc_server_retry_throttle_data* throttle_data = (grpc_server_retry_throttle_data*)gpr_avl_get(g_avl, (char*)server_name, - NULL); - if (throttle_data == NULL) { + nullptr); + if (throttle_data == nullptr) { // Entry not found. Create a new one. throttle_data = grpc_server_retry_throttle_data_create( - max_milli_tokens, milli_token_ratio, NULL); - g_avl = gpr_avl_add(g_avl, (char*)server_name, throttle_data, NULL); + max_milli_tokens, milli_token_ratio, nullptr); + g_avl = gpr_avl_add(g_avl, (char*)server_name, throttle_data, nullptr); } else { if (throttle_data->max_milli_tokens != max_milli_tokens || throttle_data->milli_token_ratio != milli_token_ratio) { @@ -191,7 +191,7 @@ grpc_server_retry_throttle_data* grpc_retry_throttle_map_get_data_for_server( // the original one. throttle_data = grpc_server_retry_throttle_data_create( max_milli_tokens, milli_token_ratio, throttle_data); - g_avl = gpr_avl_add(g_avl, (char*)server_name, throttle_data, NULL); + g_avl = gpr_avl_add(g_avl, (char*)server_name, throttle_data, nullptr); } else { // Entry found. Increase refcount. grpc_server_retry_throttle_data_ref(throttle_data); diff --git a/src/core/ext/filters/client_channel/subchannel.cc b/src/core/ext/filters/client_channel/subchannel.cc index 5710a22178..58e294d597 100644 --- a/src/core/ext/filters/client_channel/subchannel.cc +++ b/src/core/ext/filters/client_channel/subchannel.cc @@ -52,27 +52,27 @@ #define GRPC_SUBCHANNEL_RECONNECT_MAX_BACKOFF_SECONDS 120 #define GRPC_SUBCHANNEL_RECONNECT_JITTER 0.2 -#define GET_CONNECTED_SUBCHANNEL(subchannel, barrier) \ - ((grpc_connected_subchannel *)(gpr_atm_##barrier##_load( \ +#define GET_CONNECTED_SUBCHANNEL(subchannel, barrier) \ + ((grpc_connected_subchannel*)(gpr_atm_##barrier##_load( \ &(subchannel)->connected_subchannel))) typedef struct { grpc_closure closure; - grpc_subchannel *subchannel; + grpc_subchannel* subchannel; grpc_connectivity_state connectivity_state; } state_watcher; typedef struct external_state_watcher { - grpc_subchannel *subchannel; - grpc_pollset_set *pollset_set; - grpc_closure *notify; + grpc_subchannel* subchannel; + grpc_pollset_set* pollset_set; + grpc_closure* notify; grpc_closure closure; - struct external_state_watcher *next; - struct external_state_watcher *prev; + struct external_state_watcher* next; + struct external_state_watcher* prev; } external_state_watcher; struct grpc_subchannel { - grpc_connector *connector; + grpc_connector* connector; /** refcount - lower INTERNAL_REF_BITS bits are for internal references: @@ -82,12 +82,12 @@ struct grpc_subchannel { gpr_atm ref_pair; /** non-transport related channel filters */ - const grpc_channel_filter **filters; + const grpc_channel_filter** filters; size_t num_filters; /** channel arguments */ - grpc_channel_args *args; + grpc_channel_args* args; - grpc_subchannel_key *key; + grpc_subchannel_key* key; /** set during connection */ grpc_connect_out_args connecting_result; @@ -100,7 +100,7 @@ struct grpc_subchannel { /** pollset_set tracking who's interested in a connection being setup */ - grpc_pollset_set *pollset_set; + grpc_pollset_set* pollset_set; /** active connection, or null; of type grpc_connected_subchannel */ gpr_atm connected_subchannel; @@ -117,10 +117,10 @@ struct grpc_subchannel { external_state_watcher root_external_state_watcher; - /** next connect attempt time */ - grpc_millis next_attempt; /** backoff state */ grpc_backoff backoff_state; + grpc_backoff_result backoff_result; + /** do we have an active alarm? */ bool have_alarm; /** have we started the backoff loop */ @@ -130,22 +130,22 @@ struct grpc_subchannel { }; struct grpc_subchannel_call { - grpc_connected_subchannel *connection; - grpc_closure *schedule_closure_after_destroy; + grpc_connected_subchannel* connection; + grpc_closure* schedule_closure_after_destroy; }; -#define SUBCHANNEL_CALL_TO_CALL_STACK(call) ((grpc_call_stack *)((call) + 1)) -#define CHANNEL_STACK_FROM_CONNECTION(con) ((grpc_channel_stack *)(con)) +#define SUBCHANNEL_CALL_TO_CALL_STACK(call) ((grpc_call_stack*)((call) + 1)) +#define CHANNEL_STACK_FROM_CONNECTION(con) ((grpc_channel_stack*)(con)) #define CALLSTACK_TO_SUBCHANNEL_CALL(callstack) \ - (((grpc_subchannel_call *)(callstack)) - 1) + (((grpc_subchannel_call*)(callstack)) - 1) -static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *subchannel, - grpc_error *error); +static void subchannel_connected(grpc_exec_ctx* exec_ctx, void* subchannel, + grpc_error* error); #ifndef NDEBUG #define REF_REASON reason #define REF_MUTATE_EXTRA_ARGS \ - GRPC_SUBCHANNEL_REF_EXTRA_ARGS, const char *purpose + GRPC_SUBCHANNEL_REF_EXTRA_ARGS, const char* purpose #define REF_MUTATE_PURPOSE(x) , file, line, reason, x #else #define REF_REASON "" @@ -157,21 +157,21 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *subchannel, * connection implementation */ -static void connection_destroy(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_connected_subchannel *c = (grpc_connected_subchannel *)arg; +static void connection_destroy(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_connected_subchannel* c = (grpc_connected_subchannel*)arg; grpc_channel_stack_destroy(exec_ctx, CHANNEL_STACK_FROM_CONNECTION(c)); gpr_free(c); } -grpc_connected_subchannel *grpc_connected_subchannel_ref( - grpc_connected_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { +grpc_connected_subchannel* grpc_connected_subchannel_ref( + grpc_connected_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { GRPC_CHANNEL_STACK_REF(CHANNEL_STACK_FROM_CONNECTION(c), REF_REASON); return c; } -void grpc_connected_subchannel_unref(grpc_exec_ctx *exec_ctx, - grpc_connected_subchannel *c +void grpc_connected_subchannel_unref(grpc_exec_ctx* exec_ctx, + grpc_connected_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { GRPC_CHANNEL_STACK_UNREF(exec_ctx, CHANNEL_STACK_FROM_CONNECTION(c), REF_REASON); @@ -181,10 +181,10 @@ void grpc_connected_subchannel_unref(grpc_exec_ctx *exec_ctx, * grpc_subchannel implementation */ -static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_subchannel *c = (grpc_subchannel *)arg; - gpr_free((void *)c->filters); +static void subchannel_destroy(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_subchannel* c = (grpc_subchannel*)arg; + gpr_free((void*)c->filters); grpc_channel_args_destroy(exec_ctx, c->args); grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker); grpc_connector_unref(exec_ctx, c->connector); @@ -194,12 +194,12 @@ static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg, gpr_free(c); } -static gpr_atm ref_mutate(grpc_subchannel *c, gpr_atm delta, +static gpr_atm ref_mutate(grpc_subchannel* c, gpr_atm delta, int barrier REF_MUTATE_EXTRA_ARGS) { gpr_atm old_val = barrier ? gpr_atm_full_fetch_add(&c->ref_pair, delta) : gpr_atm_no_barrier_fetch_add(&c->ref_pair, delta); #ifndef NDEBUG - if (GRPC_TRACER_ON(grpc_trace_stream_refcount)) { + if (grpc_trace_stream_refcount.enabled()) { gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "SUBCHANNEL: %p %12s 0x%" PRIxPTR " -> 0x%" PRIxPTR " [%s]", c, purpose, old_val, old_val + delta, reason); @@ -208,8 +208,8 @@ static gpr_atm ref_mutate(grpc_subchannel *c, gpr_atm delta, return old_val; } -grpc_subchannel *grpc_subchannel_ref( - grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { +grpc_subchannel* grpc_subchannel_ref( + grpc_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { gpr_atm old_refs; old_refs = ref_mutate(c, (1 << INTERNAL_REF_BITS), 0 REF_MUTATE_PURPOSE("STRONG_REF")); @@ -217,17 +217,17 @@ grpc_subchannel *grpc_subchannel_ref( return c; } -grpc_subchannel *grpc_subchannel_weak_ref( - grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { +grpc_subchannel* grpc_subchannel_weak_ref( + grpc_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { gpr_atm old_refs; old_refs = ref_mutate(c, 1, 0 REF_MUTATE_PURPOSE("WEAK_REF")); GPR_ASSERT(old_refs != 0); return c; } -grpc_subchannel *grpc_subchannel_ref_from_weak_ref( - grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { - if (!c) return NULL; +grpc_subchannel* grpc_subchannel_ref_from_weak_ref( + grpc_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { + if (!c) return nullptr; for (;;) { gpr_atm old_refs = gpr_atm_acq_load(&c->ref_pair); if (old_refs >= (1 << INTERNAL_REF_BITS)) { @@ -236,13 +236,13 @@ grpc_subchannel *grpc_subchannel_ref_from_weak_ref( return c; } } else { - return NULL; + return nullptr; } } } -static void disconnect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { - grpc_connected_subchannel *con; +static void disconnect(grpc_exec_ctx* exec_ctx, grpc_subchannel* c) { + grpc_connected_subchannel* con; grpc_subchannel_index_unregister(exec_ctx, c->key, c); gpr_mu_lock(&c->mu); GPR_ASSERT(!c->disconnected); @@ -251,15 +251,15 @@ static void disconnect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { exec_ctx, c->connector, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Subchannel disconnected")); con = GET_CONNECTED_SUBCHANNEL(c, no_barrier); - if (con != NULL) { + if (con != nullptr) { GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, con, "connection"); gpr_atm_no_barrier_store(&c->connected_subchannel, (gpr_atm)0xdeadbeef); } gpr_mu_unlock(&c->mu); } -void grpc_subchannel_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { +void grpc_subchannel_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { gpr_atm old_refs; // add a weak ref and subtract a strong ref (atomically) old_refs = ref_mutate(c, (gpr_atm)1 - (gpr_atm)(1 << INTERNAL_REF_BITS), @@ -270,63 +270,64 @@ void grpc_subchannel_unref(grpc_exec_ctx *exec_ctx, GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "strong-unref"); } -void grpc_subchannel_weak_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel *c +void grpc_subchannel_weak_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { gpr_atm old_refs; old_refs = ref_mutate(c, -(gpr_atm)1, 1 REF_MUTATE_PURPOSE("WEAK_UNREF")); if (old_refs == 1) { - GRPC_CLOSURE_SCHED(exec_ctx, GRPC_CLOSURE_CREATE(subchannel_destroy, c, - grpc_schedule_on_exec_ctx), - GRPC_ERROR_NONE); + GRPC_CLOSURE_SCHED( + exec_ctx, + GRPC_CLOSURE_CREATE(subchannel_destroy, c, grpc_schedule_on_exec_ctx), + GRPC_ERROR_NONE); } } -grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, - grpc_connector *connector, - const grpc_subchannel_args *args) { - grpc_subchannel_key *key = grpc_subchannel_key_create(args); - grpc_subchannel *c = grpc_subchannel_index_find(exec_ctx, key); +grpc_subchannel* grpc_subchannel_create(grpc_exec_ctx* exec_ctx, + grpc_connector* connector, + const grpc_subchannel_args* args) { + grpc_subchannel_key* key = grpc_subchannel_key_create(args); + grpc_subchannel* c = grpc_subchannel_index_find(exec_ctx, key); if (c) { grpc_subchannel_key_destroy(exec_ctx, key); return c; } GRPC_STATS_INC_CLIENT_SUBCHANNELS_CREATED(exec_ctx); - c = (grpc_subchannel *)gpr_zalloc(sizeof(*c)); + c = (grpc_subchannel*)gpr_zalloc(sizeof(*c)); c->key = key; gpr_atm_no_barrier_store(&c->ref_pair, 1 << INTERNAL_REF_BITS); c->connector = connector; grpc_connector_ref(c->connector); c->num_filters = args->filter_count; if (c->num_filters > 0) { - c->filters = (const grpc_channel_filter **)gpr_malloc( - sizeof(grpc_channel_filter *) * c->num_filters); - memcpy((void *)c->filters, args->filters, - sizeof(grpc_channel_filter *) * c->num_filters); + c->filters = (const grpc_channel_filter**)gpr_malloc( + sizeof(grpc_channel_filter*) * c->num_filters); + memcpy((void*)c->filters, args->filters, + sizeof(grpc_channel_filter*) * c->num_filters); } else { - c->filters = NULL; + c->filters = nullptr; } c->pollset_set = grpc_pollset_set_create(); - grpc_resolved_address *addr = - (grpc_resolved_address *)gpr_malloc(sizeof(*addr)); + grpc_resolved_address* addr = + (grpc_resolved_address*)gpr_malloc(sizeof(*addr)); grpc_get_subchannel_address_arg(exec_ctx, args->args, addr); - grpc_resolved_address *new_address = NULL; - grpc_channel_args *new_args = NULL; + grpc_resolved_address* new_address = nullptr; + grpc_channel_args* new_args = nullptr; if (grpc_proxy_mappers_map_address(exec_ctx, addr, args->args, &new_address, &new_args)) { - GPR_ASSERT(new_address != NULL); + GPR_ASSERT(new_address != nullptr); gpr_free(addr); addr = new_address; } - static const char *keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS}; + static const char* keys_to_remove[] = {GRPC_ARG_SUBCHANNEL_ADDRESS}; grpc_arg new_arg = grpc_create_subchannel_address_arg(addr); gpr_free(addr); c->args = grpc_channel_args_copy_and_add_and_remove( - new_args != NULL ? new_args : args->args, keys_to_remove, + new_args != nullptr ? new_args : args->args, keys_to_remove, GPR_ARRAY_SIZE(keys_to_remove), &new_arg, 1); gpr_free(new_arg.value.string); - if (new_args != NULL) grpc_channel_args_destroy(exec_ctx, new_args); + if (new_args != nullptr) grpc_channel_args_destroy(exec_ctx, new_args); c->root_external_state_watcher.next = c->root_external_state_watcher.prev = &c->root_external_state_watcher; GRPC_CLOSURE_INIT(&c->connected, subchannel_connected, c, @@ -375,12 +376,12 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, return grpc_subchannel_index_register(exec_ctx, key, c); } -static void continue_connect_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel *c) { +static void continue_connect_locked(grpc_exec_ctx* exec_ctx, + grpc_subchannel* c) { grpc_connect_in_args args; args.interested_parties = c->pollset_set; - args.deadline = c->next_attempt; + args.deadline = c->backoff_result.current_deadline; args.channel_args = c->args; grpc_connectivity_state_set(exec_ctx, &c->state_tracker, @@ -390,8 +391,8 @@ static void continue_connect_locked(grpc_exec_ctx *exec_ctx, &c->connected); } -grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel *c, - grpc_error **error) { +grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel* c, + grpc_error** error) { grpc_connectivity_state state; gpr_mu_lock(&c->mu); state = grpc_connectivity_state_get(&c->state_tracker, error); @@ -399,11 +400,11 @@ grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel *c, return state; } -static void on_external_state_watcher_done(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - external_state_watcher *w = (external_state_watcher *)arg; - grpc_closure *follow_up = w->notify; - if (w->pollset_set != NULL) { +static void on_external_state_watcher_done(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + external_state_watcher* w = (external_state_watcher*)arg; + grpc_closure* follow_up = w->notify; + if (w->pollset_set != nullptr) { grpc_pollset_set_del_pollset_set(exec_ctx, w->subchannel->pollset_set, w->pollset_set); } @@ -416,8 +417,8 @@ static void on_external_state_watcher_done(grpc_exec_ctx *exec_ctx, void *arg, GRPC_CLOSURE_RUN(exec_ctx, follow_up, GRPC_ERROR_REF(error)); } -static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { - grpc_subchannel *c = (grpc_subchannel *)arg; +static void on_alarm(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { + grpc_subchannel* c = (grpc_subchannel*)arg; gpr_mu_lock(&c->mu); c->have_alarm = false; if (c->disconnected) { @@ -428,7 +429,7 @@ static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { } if (error == GRPC_ERROR_NONE) { gpr_log(GPR_INFO, "Failed to connect to channel, retrying"); - c->next_attempt = grpc_backoff_step(exec_ctx, &c->backoff_state); + c->backoff_result = grpc_backoff_step(exec_ctx, &c->backoff_state); continue_connect_locked(exec_ctx, c); gpr_mu_unlock(&c->mu); } else { @@ -438,8 +439,8 @@ static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { GRPC_ERROR_UNREF(error); } -static void maybe_start_connecting_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel *c) { +static void maybe_start_connecting_locked(grpc_exec_ctx* exec_ctx, + grpc_subchannel* c) { if (c->disconnected) { /* Don't try to connect if we're already disconnected */ return; @@ -450,7 +451,7 @@ static void maybe_start_connecting_locked(grpc_exec_ctx *exec_ctx, return; } - if (GET_CONNECTED_SUBCHANNEL(c, no_barrier) != NULL) { + if (GET_CONNECTED_SUBCHANNEL(c, no_barrier) != nullptr) { /* Already connected: don't restart */ return; } @@ -465,47 +466,48 @@ static void maybe_start_connecting_locked(grpc_exec_ctx *exec_ctx, if (!c->backoff_begun) { c->backoff_begun = true; - c->next_attempt = grpc_backoff_begin(exec_ctx, &c->backoff_state); + c->backoff_result = grpc_backoff_begin(exec_ctx, &c->backoff_state); continue_connect_locked(exec_ctx, c); } else { GPR_ASSERT(!c->have_alarm); c->have_alarm = true; const grpc_millis time_til_next = - c->next_attempt - grpc_exec_ctx_now(exec_ctx); + c->backoff_result.next_attempt_start_time - grpc_exec_ctx_now(exec_ctx); if (time_til_next <= 0) { gpr_log(GPR_INFO, "Retry immediately"); } else { gpr_log(GPR_INFO, "Retry in %" PRIdPTR " milliseconds", time_til_next); } GRPC_CLOSURE_INIT(&c->on_alarm, on_alarm, c, grpc_schedule_on_exec_ctx); - grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, &c->on_alarm); + grpc_timer_init(exec_ctx, &c->alarm, + c->backoff_result.next_attempt_start_time, &c->on_alarm); } } void grpc_subchannel_notify_on_state_change( - grpc_exec_ctx *exec_ctx, grpc_subchannel *c, - grpc_pollset_set *interested_parties, grpc_connectivity_state *state, - grpc_closure *notify) { - external_state_watcher *w; + grpc_exec_ctx* exec_ctx, grpc_subchannel* c, + grpc_pollset_set* interested_parties, grpc_connectivity_state* state, + grpc_closure* notify) { + external_state_watcher* w; - if (state == NULL) { + if (state == nullptr) { gpr_mu_lock(&c->mu); for (w = c->root_external_state_watcher.next; w != &c->root_external_state_watcher; w = w->next) { if (w->notify == notify) { grpc_connectivity_state_notify_on_state_change( - exec_ctx, &c->state_tracker, NULL, &w->closure); + exec_ctx, &c->state_tracker, nullptr, &w->closure); } } gpr_mu_unlock(&c->mu); } else { - w = (external_state_watcher *)gpr_malloc(sizeof(*w)); + w = (external_state_watcher*)gpr_malloc(sizeof(*w)); w->subchannel = c; w->pollset_set = interested_parties; w->notify = notify; GRPC_CLOSURE_INIT(&w->closure, on_external_state_watcher_done, w, grpc_schedule_on_exec_ctx); - if (interested_parties != NULL) { + if (interested_parties != nullptr) { grpc_pollset_set_add_pollset_set(exec_ctx, c->pollset_set, interested_parties); } @@ -522,18 +524,18 @@ void grpc_subchannel_notify_on_state_change( } void grpc_connected_subchannel_process_transport_op( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, - grpc_transport_op *op) { - grpc_channel_stack *channel_stack = CHANNEL_STACK_FROM_CONNECTION(con); - grpc_channel_element *top_elem = grpc_channel_stack_element(channel_stack, 0); + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* con, + grpc_transport_op* op) { + grpc_channel_stack* channel_stack = CHANNEL_STACK_FROM_CONNECTION(con); + grpc_channel_element* top_elem = grpc_channel_stack_element(channel_stack, 0); top_elem->filter->start_transport_op(exec_ctx, top_elem, op); } -static void subchannel_on_child_state_changed(grpc_exec_ctx *exec_ctx, void *p, - grpc_error *error) { - state_watcher *sw = (state_watcher *)p; - grpc_subchannel *c = sw->subchannel; - gpr_mu *mu = &c->mu; +static void subchannel_on_child_state_changed(grpc_exec_ctx* exec_ctx, void* p, + grpc_error* error) { + state_watcher* sw = (state_watcher*)p; + grpc_subchannel* c = sw->subchannel; + gpr_mu* mu = &c->mu; gpr_mu_lock(mu); @@ -547,10 +549,10 @@ static void subchannel_on_child_state_changed(grpc_exec_ctx *exec_ctx, void *p, "reflect_child"); if (sw->connectivity_state != GRPC_CHANNEL_SHUTDOWN) { grpc_connected_subchannel_notify_on_state_change( - exec_ctx, GET_CONNECTED_SUBCHANNEL(c, no_barrier), NULL, + exec_ctx, GET_CONNECTED_SUBCHANNEL(c, no_barrier), nullptr, &sw->connectivity_state, &sw->closure); GRPC_SUBCHANNEL_WEAK_REF(c, "state_watcher"); - sw = NULL; + sw = nullptr; } gpr_mu_unlock(mu); @@ -558,13 +560,13 @@ static void subchannel_on_child_state_changed(grpc_exec_ctx *exec_ctx, void *p, gpr_free(sw); } -static void connected_subchannel_state_op(grpc_exec_ctx *exec_ctx, - grpc_connected_subchannel *con, - grpc_pollset_set *interested_parties, - grpc_connectivity_state *state, - grpc_closure *closure) { - grpc_transport_op *op = grpc_make_transport_op(NULL); - grpc_channel_element *elem; +static void connected_subchannel_state_op(grpc_exec_ctx* exec_ctx, + grpc_connected_subchannel* con, + grpc_pollset_set* interested_parties, + grpc_connectivity_state* state, + grpc_closure* closure) { + grpc_transport_op* op = grpc_make_transport_op(nullptr); + grpc_channel_element* elem; op->connectivity_state = state; op->on_connectivity_state_change = closure; op->bind_pollset_set = interested_parties; @@ -573,31 +575,31 @@ static void connected_subchannel_state_op(grpc_exec_ctx *exec_ctx, } void grpc_connected_subchannel_notify_on_state_change( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, - grpc_pollset_set *interested_parties, grpc_connectivity_state *state, - grpc_closure *closure) { + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* con, + grpc_pollset_set* interested_parties, grpc_connectivity_state* state, + grpc_closure* closure) { connected_subchannel_state_op(exec_ctx, con, interested_parties, state, closure); } -void grpc_connected_subchannel_ping(grpc_exec_ctx *exec_ctx, - grpc_connected_subchannel *con, - grpc_closure *closure) { - grpc_transport_op *op = grpc_make_transport_op(NULL); - grpc_channel_element *elem; +void grpc_connected_subchannel_ping(grpc_exec_ctx* exec_ctx, + grpc_connected_subchannel* con, + grpc_closure* closure) { + grpc_transport_op* op = grpc_make_transport_op(nullptr); + grpc_channel_element* elem; op->send_ping = closure; elem = grpc_channel_stack_element(CHANNEL_STACK_FROM_CONNECTION(con), 0); elem->filter->start_transport_op(exec_ctx, elem, op); } -static bool publish_transport_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel *c) { - grpc_connected_subchannel *con; - grpc_channel_stack *stk; - state_watcher *sw_subchannel; +static bool publish_transport_locked(grpc_exec_ctx* exec_ctx, + grpc_subchannel* c) { + grpc_connected_subchannel* con; + grpc_channel_stack* stk; + state_watcher* sw_subchannel; /* construct channel stack */ - grpc_channel_stack_builder *builder = grpc_channel_stack_builder_create(); + grpc_channel_stack_builder* builder = grpc_channel_stack_builder_create(); grpc_channel_stack_builder_set_channel_arguments( exec_ctx, builder, c->connecting_result.channel_args); grpc_channel_stack_builder_set_transport(builder, @@ -608,8 +610,8 @@ static bool publish_transport_locked(grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder_destroy(exec_ctx, builder); return false; } - grpc_error *error = grpc_channel_stack_builder_finish( - exec_ctx, builder, 0, 1, connection_destroy, NULL, (void **)&con); + grpc_error* error = grpc_channel_stack_builder_finish( + exec_ctx, builder, 0, 1, connection_destroy, nullptr, (void**)&con); if (error != GRPC_ERROR_NONE) { grpc_transport_destroy(exec_ctx, c->connecting_result.transport); gpr_log(GPR_ERROR, "error initializing subchannel stack: %s", @@ -621,7 +623,7 @@ static bool publish_transport_locked(grpc_exec_ctx *exec_ctx, memset(&c->connecting_result, 0, sizeof(c->connecting_result)); /* initialize state watcher */ - sw_subchannel = (state_watcher *)gpr_malloc(sizeof(*sw_subchannel)); + sw_subchannel = (state_watcher*)gpr_malloc(sizeof(*sw_subchannel)); sw_subchannel->subchannel = c; sw_subchannel->connectivity_state = GRPC_CHANNEL_READY; GRPC_CLOSURE_INIT(&sw_subchannel->closure, subchannel_on_child_state_changed, @@ -656,15 +658,15 @@ static bool publish_transport_locked(grpc_exec_ctx *exec_ctx, return true; } -static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_subchannel *c = (grpc_subchannel *)arg; - grpc_channel_args *delete_channel_args = c->connecting_result.channel_args; +static void subchannel_connected(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_subchannel* c = (grpc_subchannel*)arg; + grpc_channel_args* delete_channel_args = c->connecting_result.channel_args; GRPC_SUBCHANNEL_WEAK_REF(c, "connected"); gpr_mu_lock(&c->mu); c->connecting = false; - if (c->connecting_result.transport != NULL && + if (c->connecting_result.transport != nullptr && publish_transport_locked(exec_ctx, c)) { /* do nothing, transport was published */ } else if (c->disconnected) { @@ -677,7 +679,7 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE), "connect_failed"); - const char *errmsg = grpc_error_string(error); + const char* errmsg = grpc_error_string(error); gpr_log(GPR_INFO, "Connect failed: %s", errmsg); maybe_start_connecting_locked(exec_ctx, c); @@ -692,69 +694,69 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, * grpc_subchannel_call implementation */ -static void subchannel_call_destroy(grpc_exec_ctx *exec_ctx, void *call, - grpc_error *error) { - grpc_subchannel_call *c = (grpc_subchannel_call *)call; - GPR_ASSERT(c->schedule_closure_after_destroy != NULL); +static void subchannel_call_destroy(grpc_exec_ctx* exec_ctx, void* call, + grpc_error* error) { + grpc_subchannel_call* c = (grpc_subchannel_call*)call; + GPR_ASSERT(c->schedule_closure_after_destroy != nullptr); GPR_TIMER_BEGIN("grpc_subchannel_call_unref.destroy", 0); - grpc_connected_subchannel *connection = c->connection; - grpc_call_stack_destroy(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c), NULL, + grpc_connected_subchannel* connection = c->connection; + grpc_call_stack_destroy(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c), nullptr, c->schedule_closure_after_destroy); GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, connection, "subchannel_call"); GPR_TIMER_END("grpc_subchannel_call_unref.destroy", 0); } -void grpc_subchannel_call_set_cleanup_closure(grpc_subchannel_call *call, - grpc_closure *closure) { - GPR_ASSERT(call->schedule_closure_after_destroy == NULL); - GPR_ASSERT(closure != NULL); +void grpc_subchannel_call_set_cleanup_closure(grpc_subchannel_call* call, + grpc_closure* closure) { + GPR_ASSERT(call->schedule_closure_after_destroy == nullptr); + GPR_ASSERT(closure != nullptr); call->schedule_closure_after_destroy = closure; } void grpc_subchannel_call_ref( - grpc_subchannel_call *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { + grpc_subchannel_call* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { GRPC_CALL_STACK_REF(SUBCHANNEL_CALL_TO_CALL_STACK(c), REF_REASON); } -void grpc_subchannel_call_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *c +void grpc_subchannel_call_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel_call* c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { GRPC_CALL_STACK_UNREF(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c), REF_REASON); } -void grpc_subchannel_call_process_op(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *call, - grpc_transport_stream_op_batch *batch) { +void grpc_subchannel_call_process_op(grpc_exec_ctx* exec_ctx, + grpc_subchannel_call* call, + grpc_transport_stream_op_batch* batch) { GPR_TIMER_BEGIN("grpc_subchannel_call_process_op", 0); - grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); - grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); + grpc_call_stack* call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); + grpc_call_element* top_elem = grpc_call_stack_element(call_stack, 0); GRPC_CALL_LOG_OP(GPR_INFO, top_elem, batch); top_elem->filter->start_transport_stream_op_batch(exec_ctx, top_elem, batch); GPR_TIMER_END("grpc_subchannel_call_process_op", 0); } -grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel( - grpc_subchannel *c) { +grpc_connected_subchannel* grpc_subchannel_get_connected_subchannel( + grpc_subchannel* c) { return GET_CONNECTED_SUBCHANNEL(c, acq); } -const grpc_subchannel_key *grpc_subchannel_get_key( - const grpc_subchannel *subchannel) { +const grpc_subchannel_key* grpc_subchannel_get_key( + const grpc_subchannel* subchannel) { return subchannel->key; } -grpc_error *grpc_connected_subchannel_create_call( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, - const grpc_connected_subchannel_call_args *args, - grpc_subchannel_call **call) { - grpc_channel_stack *chanstk = CHANNEL_STACK_FROM_CONNECTION(con); - *call = (grpc_subchannel_call *)gpr_arena_alloc( +grpc_error* grpc_connected_subchannel_create_call( + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* con, + const grpc_connected_subchannel_call_args* args, + grpc_subchannel_call** call) { + grpc_channel_stack* chanstk = CHANNEL_STACK_FROM_CONNECTION(con); + *call = (grpc_subchannel_call*)gpr_arena_alloc( args->arena, sizeof(grpc_subchannel_call) + chanstk->call_stack_size); - grpc_call_stack *callstk = SUBCHANNEL_CALL_TO_CALL_STACK(*call); + grpc_call_stack* callstk = SUBCHANNEL_CALL_TO_CALL_STACK(*call); (*call)->connection = GRPC_CONNECTED_SUBCHANNEL_REF(con, "subchannel_call"); const grpc_call_element_args call_args = { callstk, /* call_stack */ - NULL, /* server_transport_data */ + nullptr, /* server_transport_data */ args->context, /* context */ args->path, /* path */ args->start_time, /* start_time */ @@ -762,10 +764,10 @@ grpc_error *grpc_connected_subchannel_create_call( args->arena, /* arena */ args->call_combiner /* call_combiner */ }; - grpc_error *error = grpc_call_stack_init( + grpc_error* error = grpc_call_stack_init( exec_ctx, chanstk, 1, subchannel_call_destroy, *call, &call_args); if (error != GRPC_ERROR_NONE) { - const char *error_string = grpc_error_string(error); + const char* error_string = grpc_error_string(error); gpr_log(GPR_ERROR, "error: %s", error_string); return error; } @@ -773,39 +775,39 @@ grpc_error *grpc_connected_subchannel_create_call( return GRPC_ERROR_NONE; } -grpc_call_stack *grpc_subchannel_call_get_call_stack( - grpc_subchannel_call *subchannel_call) { +grpc_call_stack* grpc_subchannel_call_get_call_stack( + grpc_subchannel_call* subchannel_call) { return SUBCHANNEL_CALL_TO_CALL_STACK(subchannel_call); } -static void grpc_uri_to_sockaddr(grpc_exec_ctx *exec_ctx, const char *uri_str, - grpc_resolved_address *addr) { - grpc_uri *uri = grpc_uri_parse(exec_ctx, uri_str, 0 /* suppress_errors */); - GPR_ASSERT(uri != NULL); +static void grpc_uri_to_sockaddr(grpc_exec_ctx* exec_ctx, const char* uri_str, + grpc_resolved_address* addr) { + grpc_uri* uri = grpc_uri_parse(exec_ctx, uri_str, 0 /* suppress_errors */); + GPR_ASSERT(uri != nullptr); if (!grpc_parse_uri(uri, addr)) memset(addr, 0, sizeof(*addr)); grpc_uri_destroy(uri); } -void grpc_get_subchannel_address_arg(grpc_exec_ctx *exec_ctx, - const grpc_channel_args *args, - grpc_resolved_address *addr) { - const char *addr_uri_str = grpc_get_subchannel_address_uri_arg(args); +void grpc_get_subchannel_address_arg(grpc_exec_ctx* exec_ctx, + const grpc_channel_args* args, + grpc_resolved_address* addr) { + const char* addr_uri_str = grpc_get_subchannel_address_uri_arg(args); memset(addr, 0, sizeof(*addr)); if (*addr_uri_str != '\0') { grpc_uri_to_sockaddr(exec_ctx, addr_uri_str, addr); } } -const char *grpc_get_subchannel_address_uri_arg(const grpc_channel_args *args) { - const grpc_arg *addr_arg = +const char* grpc_get_subchannel_address_uri_arg(const grpc_channel_args* args) { + const grpc_arg* addr_arg = grpc_channel_args_find(args, GRPC_ARG_SUBCHANNEL_ADDRESS); - GPR_ASSERT(addr_arg != NULL); // Should have been set by LB policy. + GPR_ASSERT(addr_arg != nullptr); // Should have been set by LB policy. GPR_ASSERT(addr_arg->type == GRPC_ARG_STRING); return addr_arg->value.string; } -grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr) { +grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address* addr) { return grpc_channel_arg_string_create( - (char *)GRPC_ARG_SUBCHANNEL_ADDRESS, + (char*)GRPC_ARG_SUBCHANNEL_ADDRESS, addr->len > 0 ? grpc_sockaddr_to_uri(addr) : gpr_strdup("")); } diff --git a/src/core/ext/filters/client_channel/subchannel.h b/src/core/ext/filters/client_channel/subchannel.h index 46b29f1fe0..970f182ff0 100644 --- a/src/core/ext/filters/client_channel/subchannel.h +++ b/src/core/ext/filters/client_channel/subchannel.h @@ -79,118 +79,118 @@ typedef struct grpc_subchannel_key grpc_subchannel_key; #define GRPC_SUBCHANNEL_REF_EXTRA_ARGS #endif -grpc_subchannel *grpc_subchannel_ref( - grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -grpc_subchannel *grpc_subchannel_ref_from_weak_ref( - grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -void grpc_subchannel_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel *channel +grpc_subchannel* grpc_subchannel_ref( + grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); +grpc_subchannel* grpc_subchannel_ref_from_weak_ref( + grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); +void grpc_subchannel_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -grpc_subchannel *grpc_subchannel_weak_ref( - grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -void grpc_subchannel_weak_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel *channel +grpc_subchannel* grpc_subchannel_weak_ref( + grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); +void grpc_subchannel_weak_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -grpc_connected_subchannel *grpc_connected_subchannel_ref( - grpc_connected_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -void grpc_connected_subchannel_unref(grpc_exec_ctx *exec_ctx, - grpc_connected_subchannel *channel +grpc_connected_subchannel* grpc_connected_subchannel_ref( + grpc_connected_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); +void grpc_connected_subchannel_unref(grpc_exec_ctx* exec_ctx, + grpc_connected_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS); void grpc_subchannel_call_ref( - grpc_subchannel_call *call GRPC_SUBCHANNEL_REF_EXTRA_ARGS); -void grpc_subchannel_call_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *call + grpc_subchannel_call* call GRPC_SUBCHANNEL_REF_EXTRA_ARGS); +void grpc_subchannel_call_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel_call* call GRPC_SUBCHANNEL_REF_EXTRA_ARGS); /** construct a subchannel call */ typedef struct { - grpc_polling_entity *pollent; + grpc_polling_entity* pollent; grpc_slice path; gpr_timespec start_time; grpc_millis deadline; - gpr_arena *arena; - grpc_call_context_element *context; - grpc_call_combiner *call_combiner; + gpr_arena* arena; + grpc_call_context_element* context; + grpc_call_combiner* call_combiner; } grpc_connected_subchannel_call_args; -grpc_error *grpc_connected_subchannel_create_call( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *connected_subchannel, - const grpc_connected_subchannel_call_args *args, - grpc_subchannel_call **subchannel_call); +grpc_error* grpc_connected_subchannel_create_call( + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* connected_subchannel, + const grpc_connected_subchannel_call_args* args, + grpc_subchannel_call** subchannel_call); /** process a transport level op */ void grpc_connected_subchannel_process_transport_op( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *subchannel, - grpc_transport_op *op); + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* subchannel, + grpc_transport_op* op); /** poll the current connectivity state of a channel */ grpc_connectivity_state grpc_subchannel_check_connectivity( - grpc_subchannel *channel, grpc_error **error); + grpc_subchannel* channel, grpc_error** error); -/** call notify when the connectivity state of a channel changes from *state. - Updates *state with the new state of the channel */ +/** Calls notify when the connectivity state of a channel becomes different + from *state. Updates *state with the new state of the channel. */ void grpc_subchannel_notify_on_state_change( - grpc_exec_ctx *exec_ctx, grpc_subchannel *channel, - grpc_pollset_set *interested_parties, grpc_connectivity_state *state, - grpc_closure *notify); + grpc_exec_ctx* exec_ctx, grpc_subchannel* channel, + grpc_pollset_set* interested_parties, grpc_connectivity_state* state, + grpc_closure* notify); void grpc_connected_subchannel_notify_on_state_change( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *channel, - grpc_pollset_set *interested_parties, grpc_connectivity_state *state, - grpc_closure *notify); -void grpc_connected_subchannel_ping(grpc_exec_ctx *exec_ctx, - grpc_connected_subchannel *channel, - grpc_closure *notify); + grpc_exec_ctx* exec_ctx, grpc_connected_subchannel* channel, + grpc_pollset_set* interested_parties, grpc_connectivity_state* state, + grpc_closure* notify); +void grpc_connected_subchannel_ping(grpc_exec_ctx* exec_ctx, + grpc_connected_subchannel* channel, + grpc_closure* notify); /** retrieve the grpc_connected_subchannel - or NULL if called before the subchannel becomes connected */ -grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel( - grpc_subchannel *subchannel); +grpc_connected_subchannel* grpc_subchannel_get_connected_subchannel( + grpc_subchannel* subchannel); /** return the subchannel index key for \a subchannel */ -const grpc_subchannel_key *grpc_subchannel_get_key( - const grpc_subchannel *subchannel); +const grpc_subchannel_key* grpc_subchannel_get_key( + const grpc_subchannel* subchannel); /** continue processing a transport op */ -void grpc_subchannel_call_process_op(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *subchannel_call, - grpc_transport_stream_op_batch *op); +void grpc_subchannel_call_process_op(grpc_exec_ctx* exec_ctx, + grpc_subchannel_call* subchannel_call, + grpc_transport_stream_op_batch* op); /** Must be called once per call. Sets the 'then_schedule_closure' argument for call stack destruction. */ void grpc_subchannel_call_set_cleanup_closure( - grpc_subchannel_call *subchannel_call, grpc_closure *closure); + grpc_subchannel_call* subchannel_call, grpc_closure* closure); -grpc_call_stack *grpc_subchannel_call_get_call_stack( - grpc_subchannel_call *subchannel_call); +grpc_call_stack* grpc_subchannel_call_get_call_stack( + grpc_subchannel_call* subchannel_call); struct grpc_subchannel_args { /* When updating this struct, also update subchannel_index.c */ /** Channel filters for this channel - wrapped factories will likely want to mutate this */ - const grpc_channel_filter **filters; + const grpc_channel_filter** filters; /** The number of filters in the above array */ size_t filter_count; /** Channel arguments to be supplied to the newly created channel */ - const grpc_channel_args *args; + const grpc_channel_args* args; }; /** create a subchannel given a connector */ -grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, - grpc_connector *connector, - const grpc_subchannel_args *args); +grpc_subchannel* grpc_subchannel_create(grpc_exec_ctx* exec_ctx, + grpc_connector* connector, + const grpc_subchannel_args* args); /// Sets \a addr from \a args. -void grpc_get_subchannel_address_arg(grpc_exec_ctx *exec_ctx, - const grpc_channel_args *args, - grpc_resolved_address *addr); +void grpc_get_subchannel_address_arg(grpc_exec_ctx* exec_ctx, + const grpc_channel_args* args, + grpc_resolved_address* addr); /// Returns the URI string for the address to connect to. -const char *grpc_get_subchannel_address_uri_arg(const grpc_channel_args *args); +const char* grpc_get_subchannel_address_uri_arg(const grpc_channel_args* args); /// Returns a new channel arg encoding the subchannel address as a string. /// Caller is responsible for freeing the string. -grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr); +grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address* addr); #ifdef __cplusplus } diff --git a/src/core/ext/filters/client_channel/subchannel_index.cc b/src/core/ext/filters/client_channel/subchannel_index.cc index 1f466ec0b8..ae39ca394e 100644 --- a/src/core/ext/filters/client_channel/subchannel_index.cc +++ b/src/core/ext/filters/client_channel/subchannel_index.cc @@ -42,34 +42,34 @@ struct grpc_subchannel_key { static bool g_force_creation = false; -static grpc_subchannel_key *create_key( - const grpc_subchannel_args *args, - grpc_channel_args *(*copy_channel_args)(const grpc_channel_args *args)) { - grpc_subchannel_key *k = (grpc_subchannel_key *)gpr_malloc(sizeof(*k)); +static grpc_subchannel_key* create_key( + const grpc_subchannel_args* args, + grpc_channel_args* (*copy_channel_args)(const grpc_channel_args* args)) { + grpc_subchannel_key* k = (grpc_subchannel_key*)gpr_malloc(sizeof(*k)); k->args.filter_count = args->filter_count; if (k->args.filter_count > 0) { - k->args.filters = (const grpc_channel_filter **)gpr_malloc( + k->args.filters = (const grpc_channel_filter**)gpr_malloc( sizeof(*k->args.filters) * k->args.filter_count); - memcpy((grpc_channel_filter *)k->args.filters, args->filters, + memcpy((grpc_channel_filter*)k->args.filters, args->filters, sizeof(*k->args.filters) * k->args.filter_count); } else { - k->args.filters = NULL; + k->args.filters = nullptr; } k->args.args = copy_channel_args(args->args); return k; } -grpc_subchannel_key *grpc_subchannel_key_create( - const grpc_subchannel_args *args) { +grpc_subchannel_key* grpc_subchannel_key_create( + const grpc_subchannel_args* args) { return create_key(args, grpc_channel_args_normalize); } -static grpc_subchannel_key *subchannel_key_copy(grpc_subchannel_key *k) { +static grpc_subchannel_key* subchannel_key_copy(grpc_subchannel_key* k) { return create_key(&k->args, grpc_channel_args_copy); } -int grpc_subchannel_key_compare(const grpc_subchannel_key *a, - const grpc_subchannel_key *b) { +int grpc_subchannel_key_compare(const grpc_subchannel_key* a, + const grpc_subchannel_key* b) { if (g_force_creation) return false; int c = GPR_ICMP(a->args.filter_count, b->args.filter_count); if (c != 0) return c; @@ -81,35 +81,34 @@ int grpc_subchannel_key_compare(const grpc_subchannel_key *a, return grpc_channel_args_compare(a->args.args, b->args.args); } -void grpc_subchannel_key_destroy(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *k) { - gpr_free((grpc_channel_args *)k->args.filters); - grpc_channel_args_destroy(exec_ctx, (grpc_channel_args *)k->args.args); +void grpc_subchannel_key_destroy(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* k) { + gpr_free((grpc_channel_args*)k->args.filters); + grpc_channel_args_destroy(exec_ctx, (grpc_channel_args*)k->args.args); gpr_free(k); } -static void sck_avl_destroy(void *p, void *user_data) { - grpc_exec_ctx *exec_ctx = (grpc_exec_ctx *)user_data; - grpc_subchannel_key_destroy(exec_ctx, (grpc_subchannel_key *)p); +static void sck_avl_destroy(void* p, void* user_data) { + grpc_exec_ctx* exec_ctx = (grpc_exec_ctx*)user_data; + grpc_subchannel_key_destroy(exec_ctx, (grpc_subchannel_key*)p); } -static void *sck_avl_copy(void *p, void *unused) { - return subchannel_key_copy((grpc_subchannel_key *)p); +static void* sck_avl_copy(void* p, void* unused) { + return subchannel_key_copy((grpc_subchannel_key*)p); } -static long sck_avl_compare(void *a, void *b, void *unused) { - return grpc_subchannel_key_compare((grpc_subchannel_key *)a, - (grpc_subchannel_key *)b); +static long sck_avl_compare(void* a, void* b, void* unused) { + return grpc_subchannel_key_compare((grpc_subchannel_key*)a, + (grpc_subchannel_key*)b); } -static void scv_avl_destroy(void *p, void *user_data) { - grpc_exec_ctx *exec_ctx = (grpc_exec_ctx *)user_data; - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, (grpc_subchannel *)p, - "subchannel_index"); +static void scv_avl_destroy(void* p, void* user_data) { + grpc_exec_ctx* exec_ctx = (grpc_exec_ctx*)user_data; + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, (grpc_subchannel*)p, "subchannel_index"); } -static void *scv_avl_copy(void *p, void *unused) { - GRPC_SUBCHANNEL_WEAK_REF((grpc_subchannel *)p, "subchannel_index"); +static void* scv_avl_copy(void* p, void* unused) { + GRPC_SUBCHANNEL_WEAK_REF((grpc_subchannel*)p, "subchannel_index"); return p; } @@ -145,28 +144,28 @@ void grpc_subchannel_index_unref(void) { void grpc_subchannel_index_ref(void) { gpr_ref_non_zero(&g_refcount); } -grpc_subchannel *grpc_subchannel_index_find(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key) { +grpc_subchannel* grpc_subchannel_index_find(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key) { // Lock, and take a reference to the subchannel index. // We don't need to do the search under a lock as avl's are immutable. gpr_mu_lock(&g_mu); gpr_avl index = gpr_avl_ref(g_subchannel_index, exec_ctx); gpr_mu_unlock(&g_mu); - grpc_subchannel *c = GRPC_SUBCHANNEL_REF_FROM_WEAK_REF( - (grpc_subchannel *)gpr_avl_get(index, key, exec_ctx), "index_find"); + grpc_subchannel* c = GRPC_SUBCHANNEL_REF_FROM_WEAK_REF( + (grpc_subchannel*)gpr_avl_get(index, key, exec_ctx), "index_find"); gpr_avl_unref(index, exec_ctx); return c; } -grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed) { - grpc_subchannel *c = NULL; +grpc_subchannel* grpc_subchannel_index_register(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key, + grpc_subchannel* constructed) { + grpc_subchannel* c = nullptr; bool need_to_unref_constructed; - while (c == NULL) { + while (c == nullptr) { need_to_unref_constructed = false; // Compare and swap loop: @@ -176,11 +175,11 @@ grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, gpr_mu_unlock(&g_mu); // - Check to see if a subchannel already exists - c = (grpc_subchannel *)gpr_avl_get(index, key, exec_ctx); - if (c != NULL) { + c = (grpc_subchannel*)gpr_avl_get(index, key, exec_ctx); + if (c != nullptr) { c = GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(c, "index_register"); } - if (c != NULL) { + if (c != nullptr) { // yes -> we're done need_to_unref_constructed = true; } else { @@ -211,9 +210,9 @@ grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, return c; } -void grpc_subchannel_index_unregister(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed) { +void grpc_subchannel_index_unregister(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key, + grpc_subchannel* constructed) { bool done = false; while (!done) { // Compare and swap loop: @@ -224,7 +223,7 @@ void grpc_subchannel_index_unregister(grpc_exec_ctx *exec_ctx, // Check to see if this key still refers to the previously // registered subchannel - grpc_subchannel *c = (grpc_subchannel *)gpr_avl_get(index, key, exec_ctx); + grpc_subchannel* c = (grpc_subchannel*)gpr_avl_get(index, key, exec_ctx); if (c != constructed) { gpr_avl_unref(index, exec_ctx); break; diff --git a/src/core/ext/filters/client_channel/subchannel_index.h b/src/core/ext/filters/client_channel/subchannel_index.h index 05c3878379..47f9c7bb1e 100644 --- a/src/core/ext/filters/client_channel/subchannel_index.h +++ b/src/core/ext/filters/client_channel/subchannel_index.h @@ -29,34 +29,34 @@ extern "C" { shared amongst channels */ /** Create a key that can be used to uniquely identify a subchannel */ -grpc_subchannel_key *grpc_subchannel_key_create( - const grpc_subchannel_args *args); +grpc_subchannel_key* grpc_subchannel_key_create( + const grpc_subchannel_args* args); /** Destroy a subchannel key */ -void grpc_subchannel_key_destroy(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key); +void grpc_subchannel_key_destroy(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key); /** Given a subchannel key, find the subchannel registered for it. Returns NULL if no such channel exists. Thread-safe. */ -grpc_subchannel *grpc_subchannel_index_find(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key); +grpc_subchannel* grpc_subchannel_index_find(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key); /** Register a subchannel against a key. Takes ownership of \a constructed. Returns the registered subchannel. This may be different from \a constructed in the case of a registration race. */ -grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed); +grpc_subchannel* grpc_subchannel_index_register(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key, + grpc_subchannel* constructed); /** Remove \a constructed as the registered subchannel for \a key. */ -void grpc_subchannel_index_unregister(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed); +void grpc_subchannel_index_unregister(grpc_exec_ctx* exec_ctx, + grpc_subchannel_key* key, + grpc_subchannel* constructed); -int grpc_subchannel_key_compare(const grpc_subchannel_key *a, - const grpc_subchannel_key *b); +int grpc_subchannel_key_compare(const grpc_subchannel_key* a, + const grpc_subchannel_key* b); /** Initialize the subchannel index (global) */ void grpc_subchannel_index_init(void); diff --git a/src/core/ext/filters/client_channel/uri_parser.cc b/src/core/ext/filters/client_channel/uri_parser.cc index fb4fb8e694..b76dcbe4e3 100644 --- a/src/core/ext/filters/client_channel/uri_parser.cc +++ b/src/core/ext/filters/client_channel/uri_parser.cc @@ -34,9 +34,9 @@ /** a size_t default value... maps to all 1's */ #define NOT_SET (~(size_t)0) -static grpc_uri *bad_uri(const char *uri_text, size_t pos, const char *section, +static grpc_uri* bad_uri(const char* uri_text, size_t pos, const char* section, bool suppress_errors) { - char *line_prefix; + char* line_prefix; size_t pfx_len; if (!suppress_errors) { @@ -45,24 +45,26 @@ static grpc_uri *bad_uri(const char *uri_text, size_t pos, const char *section, gpr_log(GPR_ERROR, "%s%s'", line_prefix, uri_text); gpr_free(line_prefix); - line_prefix = (char *)gpr_malloc(pfx_len + 1); + line_prefix = (char*)gpr_malloc(pfx_len + 1); memset(line_prefix, ' ', pfx_len); line_prefix[pfx_len] = 0; gpr_log(GPR_ERROR, "%s^ here", line_prefix); gpr_free(line_prefix); } - return NULL; + return nullptr; } /** Returns a copy of percent decoded \a src[begin, end) */ -static char *decode_and_copy_component(grpc_exec_ctx *exec_ctx, const char *src, +static char* decode_and_copy_component(grpc_exec_ctx* exec_ctx, const char* src, size_t begin, size_t end) { grpc_slice component = - grpc_slice_from_copied_buffer(src + begin, end - begin); + (begin == NOT_SET || end == NOT_SET) + ? grpc_empty_slice() + : grpc_slice_from_copied_buffer(src + begin, end - begin); grpc_slice decoded_component = grpc_permissive_percent_decode_slice(component); - char *out = grpc_dump_slice(decoded_component, GPR_DUMP_ASCII); + char* out = grpc_dump_slice(decoded_component, GPR_DUMP_ASCII); grpc_slice_unref_internal(exec_ctx, component); grpc_slice_unref_internal(exec_ctx, decoded_component); return out; @@ -76,7 +78,7 @@ static bool valid_hex(char c) { /** Returns how many chars to advance if \a uri_text[i] begins a valid \a pchar * production. If \a uri_text[i] introduces an invalid \a pchar (such as percent * sign not followed by two hex digits), NOT_SET is returned. */ -static size_t parse_pchar(const char *uri_text, size_t i) { +static size_t parse_pchar(const char* uri_text, size_t i) { /* pchar = unreserved / pct-encoded / sub-delims / ":" / "@" * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" * pct-encoded = "%" HEXDIG HEXDIG @@ -118,7 +120,7 @@ static size_t parse_pchar(const char *uri_text, size_t i) { } /* *( pchar / "?" / "/" ) */ -static int parse_fragment_or_query(const char *uri_text, size_t *i) { +static int parse_fragment_or_query(const char* uri_text, size_t* i) { char c; while ((c = uri_text[*i]) != 0) { const size_t advance = parse_pchar(uri_text, *i); /* pchar */ @@ -143,13 +145,13 @@ static int parse_fragment_or_query(const char *uri_text, size_t *i) { return 1; } -static void parse_query_parts(grpc_uri *uri) { - static const char *QUERY_PARTS_SEPARATOR = "&"; - static const char *QUERY_PARTS_VALUE_SEPARATOR = "="; - GPR_ASSERT(uri->query != NULL); +static void parse_query_parts(grpc_uri* uri) { + static const char* QUERY_PARTS_SEPARATOR = "&"; + static const char* QUERY_PARTS_VALUE_SEPARATOR = "="; + GPR_ASSERT(uri->query != nullptr); if (uri->query[0] == '\0') { - uri->query_parts = NULL; - uri->query_parts_values = NULL; + uri->query_parts = nullptr; + uri->query_parts_values = nullptr; uri->num_query_parts = 0; return; } @@ -157,11 +159,11 @@ static void parse_query_parts(grpc_uri *uri) { gpr_string_split(uri->query, QUERY_PARTS_SEPARATOR, &uri->query_parts, &uri->num_query_parts); uri->query_parts_values = - (char **)gpr_malloc(uri->num_query_parts * sizeof(char **)); + (char**)gpr_malloc(uri->num_query_parts * sizeof(char**)); for (size_t i = 0; i < uri->num_query_parts; i++) { - char **query_param_parts; + char** query_param_parts; size_t num_query_param_parts; - char *full = uri->query_parts[i]; + char* full = uri->query_parts[i]; gpr_string_split(full, QUERY_PARTS_VALUE_SEPARATOR, &query_param_parts, &num_query_param_parts); GPR_ASSERT(num_query_param_parts > 0); @@ -172,7 +174,7 @@ static void parse_query_parts(grpc_uri *uri) { * be included, even if they include the separator. */ uri->query_parts_values[i] = query_param_parts[1]; } else { - uri->query_parts_values[i] = NULL; + uri->query_parts_values[i] = nullptr; } for (size_t j = 2; j < num_query_param_parts; j++) { gpr_free(query_param_parts[j]); @@ -182,9 +184,9 @@ static void parse_query_parts(grpc_uri *uri) { } } -grpc_uri *grpc_uri_parse(grpc_exec_ctx *exec_ctx, const char *uri_text, +grpc_uri* grpc_uri_parse(grpc_exec_ctx* exec_ctx, const char* uri_text, bool suppress_errors) { - grpc_uri *uri; + grpc_uri* uri; size_t scheme_begin = 0; size_t scheme_end = NOT_SET; size_t authority_begin = NOT_SET; @@ -270,7 +272,7 @@ grpc_uri *grpc_uri_parse(grpc_exec_ctx *exec_ctx, const char *uri_text, fragment_end = i; } - uri = (grpc_uri *)gpr_zalloc(sizeof(*uri)); + uri = (grpc_uri*)gpr_zalloc(sizeof(*uri)); uri->scheme = decode_and_copy_component(exec_ctx, uri_text, scheme_begin, scheme_end); uri->authority = decode_and_copy_component(exec_ctx, uri_text, @@ -286,19 +288,19 @@ grpc_uri *grpc_uri_parse(grpc_exec_ctx *exec_ctx, const char *uri_text, return uri; } -const char *grpc_uri_get_query_arg(const grpc_uri *uri, const char *key) { - GPR_ASSERT(key != NULL); - if (key[0] == '\0') return NULL; +const char* grpc_uri_get_query_arg(const grpc_uri* uri, const char* key) { + GPR_ASSERT(key != nullptr); + if (key[0] == '\0') return nullptr; for (size_t i = 0; i < uri->num_query_parts; ++i) { if (0 == strcmp(key, uri->query_parts[i])) { return uri->query_parts_values[i]; } } - return NULL; + return nullptr; } -void grpc_uri_destroy(grpc_uri *uri) { +void grpc_uri_destroy(grpc_uri* uri) { if (!uri) return; gpr_free(uri->scheme); gpr_free(uri->authority); diff --git a/src/core/ext/filters/client_channel/uri_parser.h b/src/core/ext/filters/client_channel/uri_parser.h index e78da5928b..cd877ade8d 100644 --- a/src/core/ext/filters/client_channel/uri_parser.h +++ b/src/core/ext/filters/client_channel/uri_parser.h @@ -27,29 +27,29 @@ extern "C" { #endif typedef struct { - char *scheme; - char *authority; - char *path; - char *query; + char* scheme; + char* authority; + char* path; + char* query; /** Query substrings separated by '&' */ - char **query_parts; + char** query_parts; /** Number of elements in \a query_parts and \a query_parts_values */ size_t num_query_parts; /** Split each query part by '='. NULL if not present. */ - char **query_parts_values; - char *fragment; + char** query_parts_values; + char* fragment; } grpc_uri; /** parse a uri, return NULL on failure */ -grpc_uri *grpc_uri_parse(grpc_exec_ctx *exec_ctx, const char *uri_text, +grpc_uri* grpc_uri_parse(grpc_exec_ctx* exec_ctx, const char* uri_text, bool suppress_errors); /** return the part of a query string after the '=' in "?key=xxx&...", or NULL * if key is not present */ -const char *grpc_uri_get_query_arg(const grpc_uri *uri, const char *key); +const char* grpc_uri_get_query_arg(const grpc_uri* uri, const char* key); /** destroy a uri */ -void grpc_uri_destroy(grpc_uri *uri); +void grpc_uri_destroy(grpc_uri* uri); #ifdef __cplusplus } diff --git a/src/core/ext/filters/deadline/deadline_filter.cc b/src/core/ext/filters/deadline/deadline_filter.cc index dc194ec068..849ce7153e 100644 --- a/src/core/ext/filters/deadline/deadline_filter.cc +++ b/src/core/ext/filters/deadline/deadline_filter.cc @@ -91,7 +91,7 @@ static void start_timer_if_needed(grpc_exec_ctx* exec_ctx, return; } grpc_deadline_state* deadline_state = (grpc_deadline_state*)elem->call_data; - grpc_closure* closure = NULL; + grpc_closure* closure = nullptr; switch (deadline_state->timer_state) { case GRPC_DEADLINE_STATE_PENDING: // Note: We do not start the timer if there is already a timer @@ -111,7 +111,7 @@ static void start_timer_if_needed(grpc_exec_ctx* exec_ctx, elem, grpc_schedule_on_exec_ctx); break; } - GPR_ASSERT(closure != NULL); + GPR_ASSERT(closure != nullptr); GRPC_CALL_STACK_REF(deadline_state->call_stack, "deadline_timer"); grpc_timer_init(exec_ctx, &deadline_state->timer, deadline, closure); } @@ -378,7 +378,7 @@ static bool maybe_add_deadline_filter(grpc_exec_ctx* exec_ctx, return grpc_deadline_checking_enabled( grpc_channel_stack_builder_get_channel_arguments(builder)) ? grpc_channel_stack_builder_prepend_filter( - builder, (const grpc_channel_filter*)arg, NULL, NULL) + builder, (const grpc_channel_filter*)arg, nullptr, nullptr) : true; } diff --git a/src/core/ext/filters/http/client/http_client_filter.cc b/src/core/ext/filters/http/client/http_client_filter.cc index 6208089f2e..a625369b02 100644 --- a/src/core/ext/filters/http/client/http_client_filter.cc +++ b/src/core/ext/filters/http/client/http_client_filter.cc @@ -36,7 +36,7 @@ static const size_t kMaxPayloadSizeForGet = 2048; typedef struct call_data { - grpc_call_combiner *call_combiner; + grpc_call_combiner* call_combiner; // State for handling send_initial_metadata ops. grpc_linked_mdelem method; grpc_linked_mdelem scheme; @@ -45,20 +45,20 @@ typedef struct call_data { grpc_linked_mdelem content_type; grpc_linked_mdelem user_agent; // State for handling recv_initial_metadata ops. - grpc_metadata_batch *recv_initial_metadata; - grpc_closure *original_recv_initial_metadata_ready; + grpc_metadata_batch* recv_initial_metadata; + grpc_closure* original_recv_initial_metadata_ready; grpc_closure recv_initial_metadata_ready; // State for handling recv_trailing_metadata ops. - grpc_metadata_batch *recv_trailing_metadata; - grpc_closure *original_recv_trailing_metadata_on_complete; + grpc_metadata_batch* recv_trailing_metadata; + grpc_closure* original_recv_trailing_metadata_on_complete; grpc_closure recv_trailing_metadata_on_complete; // State for handling send_message ops. - grpc_transport_stream_op_batch *send_message_batch; + grpc_transport_stream_op_batch* send_message_batch; size_t send_message_bytes_read; grpc_byte_stream_cache send_message_cache; grpc_caching_byte_stream send_message_caching_stream; grpc_closure on_send_message_next_done; - grpc_closure *original_send_message_on_complete; + grpc_closure* original_send_message_on_complete; grpc_closure send_message_on_complete; } call_data; @@ -68,18 +68,18 @@ typedef struct channel_data { size_t max_payload_size_for_get; } channel_data; -static grpc_error *client_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_metadata_batch *b) { - if (b->idx.named.status != NULL) { +static grpc_error* client_filter_incoming_metadata(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_metadata_batch* b) { + if (b->idx.named.status != nullptr) { if (grpc_mdelem_eq(b->idx.named.status->md, GRPC_MDELEM_STATUS_200)) { grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.status); } else { - char *val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.status->md), + char* val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.status->md), GPR_DUMP_ASCII); - char *msg; + char* msg; gpr_asprintf(&msg, "Received http2 header with status: %s", val); - grpc_error *e = grpc_error_set_str( + grpc_error* e = grpc_error_set_str( grpc_error_set_int( grpc_error_set_str( GRPC_ERROR_CREATE_FROM_STATIC_STRING( @@ -93,7 +93,7 @@ static grpc_error *client_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, } } - if (b->idx.named.grpc_message != NULL) { + if (b->idx.named.grpc_message != nullptr) { grpc_slice pct_decoded_msg = grpc_permissive_percent_decode_slice( GRPC_MDVALUE(b->idx.named.grpc_message->md)); if (grpc_slice_is_equivalent(pct_decoded_msg, @@ -105,7 +105,7 @@ static grpc_error *client_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, } } - if (b->idx.named.content_type != NULL) { + if (b->idx.named.content_type != nullptr) { if (!grpc_mdelem_eq(b->idx.named.content_type->md, GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC)) { if (grpc_slice_buf_start_eq(GRPC_MDVALUE(b->idx.named.content_type->md), @@ -125,7 +125,7 @@ static grpc_error *client_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, } else { /* TODO(klempner): We're currently allowing this, but we shouldn't see it without a proxy so log for now. */ - char *val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.content_type->md), + char* val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.content_type->md), GPR_DUMP_ASCII); gpr_log(GPR_INFO, "Unexpected content-type '%s'", val); gpr_free(val); @@ -137,10 +137,10 @@ static grpc_error *client_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static void recv_initial_metadata_ready(grpc_exec_ctx *exec_ctx, - void *user_data, grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void recv_initial_metadata_ready(grpc_exec_ctx* exec_ctx, + void* user_data, grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (error == GRPC_ERROR_NONE) { error = client_filter_incoming_metadata(exec_ctx, elem, calld->recv_initial_metadata); @@ -151,11 +151,11 @@ static void recv_initial_metadata_ready(grpc_exec_ctx *exec_ctx, error); } -static void recv_trailing_metadata_on_complete(grpc_exec_ctx *exec_ctx, - void *user_data, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void recv_trailing_metadata_on_complete(grpc_exec_ctx* exec_ctx, + void* user_data, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (error == GRPC_ERROR_NONE) { error = client_filter_incoming_metadata(exec_ctx, elem, calld->recv_trailing_metadata); @@ -166,10 +166,10 @@ static void recv_trailing_metadata_on_complete(grpc_exec_ctx *exec_ctx, error); } -static void send_message_on_complete(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; +static void send_message_on_complete(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; grpc_byte_stream_cache_destroy(exec_ctx, &calld->send_message_cache); GRPC_CLOSURE_RUN(exec_ctx, calld->original_send_message_on_complete, GRPC_ERROR_REF(error)); @@ -177,10 +177,10 @@ static void send_message_on_complete(grpc_exec_ctx *exec_ctx, void *arg, // Pulls a slice from the send_message byte stream, updating // calld->send_message_bytes_read. -static grpc_error *pull_slice_from_send_message(grpc_exec_ctx *exec_ctx, - call_data *calld) { +static grpc_error* pull_slice_from_send_message(grpc_exec_ctx* exec_ctx, + call_data* calld) { grpc_slice incoming_slice; - grpc_error *error = grpc_byte_stream_pull( + grpc_error* error = grpc_byte_stream_pull( exec_ctx, &calld->send_message_caching_stream.base, &incoming_slice); if (error == GRPC_ERROR_NONE) { calld->send_message_bytes_read += GRPC_SLICE_LENGTH(incoming_slice); @@ -194,12 +194,12 @@ static grpc_error *pull_slice_from_send_message(grpc_exec_ctx *exec_ctx, // calld->send_message_caching_stream.base.length, then we have completed // reading from the byte stream; otherwise, an async read has been dispatched // and on_send_message_next_done() will be invoked when it is complete. -static grpc_error *read_all_available_send_message_data(grpc_exec_ctx *exec_ctx, - call_data *calld) { +static grpc_error* read_all_available_send_message_data(grpc_exec_ctx* exec_ctx, + call_data* calld) { while (grpc_byte_stream_next(exec_ctx, &calld->send_message_caching_stream.base, ~(size_t)0, &calld->on_send_message_next_done)) { - grpc_error *error = pull_slice_from_send_message(exec_ctx, calld); + grpc_error* error = pull_slice_from_send_message(exec_ctx, calld); if (error != GRPC_ERROR_NONE) return error; if (calld->send_message_bytes_read == calld->send_message_caching_stream.base.length) { @@ -210,10 +210,10 @@ static grpc_error *read_all_available_send_message_data(grpc_exec_ctx *exec_ctx, } // Async callback for grpc_byte_stream_next(). -static void on_send_message_next_done(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; +static void on_send_message_next_done(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; if (error != GRPC_ERROR_NONE) { grpc_transport_stream_op_batch_finish_with_failure( exec_ctx, calld->send_message_batch, error, calld->call_combiner); @@ -233,8 +233,8 @@ static void on_send_message_next_done(grpc_exec_ctx *exec_ctx, void *arg, grpc_call_next_op(exec_ctx, elem, calld->send_message_batch); } -static char *slice_buffer_to_string(grpc_slice_buffer *slice_buffer) { - char *payload_bytes = (char *)gpr_malloc(slice_buffer->length + 1); +static char* slice_buffer_to_string(grpc_slice_buffer* slice_buffer) { + char* payload_bytes = (char*)gpr_malloc(slice_buffer->length + 1); size_t offset = 0; for (size_t i = 0; i < slice_buffer->count; ++i) { memcpy(payload_bytes + offset, @@ -248,10 +248,10 @@ static char *slice_buffer_to_string(grpc_slice_buffer *slice_buffer) { // Modifies the path entry in the batch's send_initial_metadata to // append the base64-encoded query for a GET request. -static grpc_error *update_path_for_get(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_transport_stream_op_batch *batch) { - call_data *calld = (call_data *)elem->call_data; +static grpc_error* update_path_for_get(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_transport_stream_op_batch* batch) { + call_data* calld = (call_data*)elem->call_data; grpc_slice path_slice = GRPC_MDVALUE(batch->payload->send_initial_metadata.send_initial_metadata ->idx.named.path->md); @@ -264,44 +264,44 @@ static grpc_error *update_path_for_get(grpc_exec_ctx *exec_ctx, false /* multi_line */); grpc_slice path_with_query_slice = GRPC_SLICE_MALLOC(estimated_len); /* memcopy individual pieces into this slice */ - char *write_ptr = (char *)GRPC_SLICE_START_PTR(path_with_query_slice); - char *original_path = (char *)GRPC_SLICE_START_PTR(path_slice); + char* write_ptr = (char*)GRPC_SLICE_START_PTR(path_with_query_slice); + char* original_path = (char*)GRPC_SLICE_START_PTR(path_slice); memcpy(write_ptr, original_path, GRPC_SLICE_LENGTH(path_slice)); write_ptr += GRPC_SLICE_LENGTH(path_slice); *write_ptr++ = '?'; - char *payload_bytes = + char* payload_bytes = slice_buffer_to_string(&calld->send_message_cache.cache_buffer); - grpc_base64_encode_core((char *)write_ptr, payload_bytes, + grpc_base64_encode_core((char*)write_ptr, payload_bytes, batch->payload->send_message.send_message->length, true /* url_safe */, false /* multi_line */); gpr_free(payload_bytes); /* remove trailing unused memory and add trailing 0 to terminate string */ - char *t = (char *)GRPC_SLICE_START_PTR(path_with_query_slice); + char* t = (char*)GRPC_SLICE_START_PTR(path_with_query_slice); /* safe to use strlen since base64_encode will always add '\0' */ path_with_query_slice = grpc_slice_sub_no_ref(path_with_query_slice, 0, strlen(t)); /* substitute previous path with the new path+query */ grpc_mdelem mdelem_path_and_query = grpc_mdelem_from_slices(exec_ctx, GRPC_MDSTR_PATH, path_with_query_slice); - grpc_metadata_batch *b = + grpc_metadata_batch* b = batch->payload->send_initial_metadata.send_initial_metadata; return grpc_metadata_batch_substitute(exec_ctx, b, b->idx.named.path, mdelem_path_and_query); } -static void remove_if_present(grpc_exec_ctx *exec_ctx, - grpc_metadata_batch *batch, +static void remove_if_present(grpc_exec_ctx* exec_ctx, + grpc_metadata_batch* batch, grpc_metadata_batch_callouts_index idx) { - if (batch->idx.array[idx] != NULL) { + if (batch->idx.array[idx] != nullptr) { grpc_metadata_batch_remove(exec_ctx, batch, batch->idx.array[idx]); } } static void hc_start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *batch) { - call_data *calld = (call_data *)elem->call_data; - channel_data *channeld = (channel_data *)elem->channel_data; + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* batch) { + call_data* calld = (call_data*)elem->call_data; + channel_data* channeld = (channel_data*)elem->channel_data; GPR_TIMER_BEGIN("hc_start_transport_stream_op_batch", 0); if (batch->recv_initial_metadata) { @@ -322,7 +322,7 @@ static void hc_start_transport_stream_op_batch( batch->on_complete = &calld->recv_trailing_metadata_on_complete; } - grpc_error *error = GRPC_ERROR_NONE; + grpc_error* error = GRPC_ERROR_NONE; bool batch_will_be_handled_asynchronously = false; if (batch->send_initial_metadata) { // Decide which HTTP VERB to use. We use GET if the request is marked @@ -422,10 +422,10 @@ done: } /* Constructor for call_data */ -static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *calld = (call_data *)elem->call_data; +static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { + call_data* calld = (call_data*)elem->call_data; calld->call_combiner = args->call_combiner; GRPC_CLOSURE_INIT(&calld->recv_initial_metadata_ready, recv_initial_metadata_ready, elem, @@ -441,16 +441,16 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) {} +static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* ignored) {} -static grpc_mdelem scheme_from_args(const grpc_channel_args *args) { +static grpc_mdelem scheme_from_args(const grpc_channel_args* args) { unsigned i; size_t j; grpc_mdelem valid_schemes[] = {GRPC_MDELEM_SCHEME_HTTP, GRPC_MDELEM_SCHEME_HTTPS}; - if (args != NULL) { + if (args != nullptr) { for (i = 0; i < args->num_args; ++i) { if (args->args[i].type == GRPC_ARG_STRING && strcmp(args->args[i].key, GRPC_ARG_HTTP2_SCHEME) == 0) { @@ -466,8 +466,8 @@ static grpc_mdelem scheme_from_args(const grpc_channel_args *args) { return GRPC_MDELEM_SCHEME_HTTP; } -static size_t max_payload_size_from_args(const grpc_channel_args *args) { - if (args != NULL) { +static size_t max_payload_size_from_args(const grpc_channel_args* args) { + if (args != nullptr) { for (size_t i = 0; i < args->num_args; ++i) { if (0 == strcmp(args->args[i].key, GRPC_ARG_MAX_PAYLOAD_SIZE_FOR_GET)) { if (args->args[i].type != GRPC_ARG_INTEGER) { @@ -482,12 +482,12 @@ static size_t max_payload_size_from_args(const grpc_channel_args *args) { return kMaxPayloadSizeForGet; } -static grpc_slice user_agent_from_args(const grpc_channel_args *args, - const char *transport_name) { +static grpc_slice user_agent_from_args(const grpc_channel_args* args, + const char* transport_name) { gpr_strvec v; size_t i; int is_first = 1; - char *tmp; + char* tmp; grpc_slice result; gpr_strvec_init(&v); @@ -524,7 +524,7 @@ static grpc_slice user_agent_from_args(const grpc_channel_args *args, } } - tmp = gpr_strvec_flatten(&v, NULL); + tmp = gpr_strvec_flatten(&v, nullptr); gpr_strvec_destroy(&v); result = grpc_slice_intern(grpc_slice_from_static_string(tmp)); gpr_free(tmp); @@ -533,12 +533,12 @@ static grpc_slice user_agent_from_args(const grpc_channel_args *args, } /* Constructor for channel_data */ -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { - channel_data *chand = (channel_data *)elem->channel_data; +static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { + channel_data* chand = (channel_data*)elem->channel_data; GPR_ASSERT(!args->is_last); - GPR_ASSERT(args->optional_transport != NULL); + GPR_ASSERT(args->optional_transport != nullptr); chand->static_scheme = scheme_from_args(args->channel_args); chand->max_payload_size_for_get = max_payload_size_from_args(args->channel_args); @@ -550,9 +550,9 @@ static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for channel data */ -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) { - channel_data *chand = (channel_data *)elem->channel_data; +static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) { + channel_data* chand = (channel_data*)elem->channel_data; GRPC_MDELEM_UNREF(exec_ctx, chand->user_agent); } diff --git a/src/core/ext/filters/http/http_filters_plugin.cc b/src/core/ext/filters/http/http_filters_plugin.cc index 8f5b856317..ac31ace35d 100644 --- a/src/core/ext/filters/http/http_filters_plugin.cc +++ b/src/core/ext/filters/http/http_filters_plugin.cc @@ -27,45 +27,44 @@ #include "src/core/lib/transport/transport_impl.h" typedef struct { - const grpc_channel_filter *filter; - const char *control_channel_arg; + const grpc_channel_filter* filter; + const char* control_channel_arg; } optional_filter; static optional_filter compress_filter = { &grpc_message_compress_filter, GRPC_ARG_ENABLE_PER_MESSAGE_COMPRESSION}; static bool is_building_http_like_transport( - grpc_channel_stack_builder *builder) { - grpc_transport *t = grpc_channel_stack_builder_get_transport(builder); - return t != NULL && strstr(t->vtable->name, "http"); + grpc_channel_stack_builder* builder) { + grpc_transport* t = grpc_channel_stack_builder_get_transport(builder); + return t != nullptr && strstr(t->vtable->name, "http"); } -static bool maybe_add_optional_filter(grpc_exec_ctx *exec_ctx, - grpc_channel_stack_builder *builder, - void *arg) { +static bool maybe_add_optional_filter(grpc_exec_ctx* exec_ctx, + grpc_channel_stack_builder* builder, + void* arg) { if (!is_building_http_like_transport(builder)) return true; - optional_filter *filtarg = (optional_filter *)arg; - const grpc_channel_args *channel_args = + optional_filter* filtarg = (optional_filter*)arg; + const grpc_channel_args* channel_args = grpc_channel_stack_builder_get_channel_arguments(builder); bool enable = grpc_channel_arg_get_bool( grpc_channel_args_find(channel_args, filtarg->control_channel_arg), !grpc_channel_args_want_minimal_stack(channel_args)); return enable ? grpc_channel_stack_builder_prepend_filter( - builder, filtarg->filter, NULL, NULL) + builder, filtarg->filter, nullptr, nullptr) : true; } -static bool maybe_add_required_filter(grpc_exec_ctx *exec_ctx, - grpc_channel_stack_builder *builder, - void *arg) { +static bool maybe_add_required_filter(grpc_exec_ctx* exec_ctx, + grpc_channel_stack_builder* builder, + void* arg) { return is_building_http_like_transport(builder) ? grpc_channel_stack_builder_prepend_filter( - builder, (const grpc_channel_filter *)arg, NULL, NULL) + builder, (const grpc_channel_filter*)arg, nullptr, nullptr) : true; } extern "C" void grpc_http_filters_init(void) { - grpc_register_tracer(&grpc_compression_trace); grpc_channel_init_register_stage(GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, maybe_add_optional_filter, &compress_filter); @@ -77,13 +76,13 @@ extern "C" void grpc_http_filters_init(void) { maybe_add_optional_filter, &compress_filter); grpc_channel_init_register_stage( GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_required_filter, (void *)&grpc_http_client_filter); + maybe_add_required_filter, (void*)&grpc_http_client_filter); grpc_channel_init_register_stage( GRPC_CLIENT_DIRECT_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_required_filter, (void *)&grpc_http_client_filter); + maybe_add_required_filter, (void*)&grpc_http_client_filter); grpc_channel_init_register_stage( GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_required_filter, (void *)&grpc_http_server_filter); + maybe_add_required_filter, (void*)&grpc_http_server_filter); } extern "C" void grpc_http_filters_shutdown(void) {} diff --git a/src/core/ext/filters/http/message_compress/message_compress_filter.cc b/src/core/ext/filters/http/message_compress/message_compress_filter.cc index f785e1355d..d070b56b6a 100644 --- a/src/core/ext/filters/http/message_compress/message_compress_filter.cc +++ b/src/core/ext/filters/http/message_compress/message_compress_filter.cc @@ -45,7 +45,7 @@ typedef enum { } initial_metadata_state; typedef struct call_data { - grpc_call_combiner *call_combiner; + grpc_call_combiner* call_combiner; grpc_linked_mdelem compression_algorithm_storage; grpc_linked_mdelem stream_compression_algorithm_storage; grpc_linked_mdelem accept_encoding_storage; @@ -54,12 +54,12 @@ typedef struct call_data { * metadata, or by the channel's default compression settings. */ grpc_compression_algorithm compression_algorithm; initial_metadata_state send_initial_metadata_state; - grpc_error *cancel_error; + grpc_error* cancel_error; grpc_closure start_send_message_batch_in_call_combiner; - grpc_transport_stream_op_batch *send_message_batch; + grpc_transport_stream_op_batch* send_message_batch; grpc_slice_buffer slices; /**< Buffers up input slices to be compressed */ grpc_slice_buffer_stream replacement_stream; - grpc_closure *original_send_message_on_complete; + grpc_closure* original_send_message_on_complete; grpc_closure send_message_on_complete; grpc_closure on_send_message_next_done; } call_data; @@ -80,10 +80,10 @@ typedef struct channel_data { uint32_t supported_stream_compression_algorithms; } channel_data; -static bool skip_compression(grpc_call_element *elem, uint32_t flags, +static bool skip_compression(grpc_call_element* elem, uint32_t flags, bool has_compression_algorithm) { - call_data *calld = (call_data *)elem->call_data; - channel_data *channeld = (channel_data *)elem->channel_data; + call_data* calld = (call_data*)elem->call_data; + channel_data* channeld = (channel_data*)elem->channel_data; if (flags & (GRPC_WRITE_NO_COMPRESS | GRPC_WRITE_INTERNAL_COMPRESS)) { return true; @@ -99,25 +99,25 @@ static bool skip_compression(grpc_call_element *elem, uint32_t flags, } /** Filter initial metadata */ -static grpc_error *process_send_initial_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_metadata_batch *initial_metadata, - bool *has_compression_algorithm) GRPC_MUST_USE_RESULT; -static grpc_error *process_send_initial_metadata( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_metadata_batch *initial_metadata, bool *has_compression_algorithm) { - call_data *calld = (call_data *)elem->call_data; - channel_data *channeld = (channel_data *)elem->channel_data; +static grpc_error* process_send_initial_metadata( + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_metadata_batch* initial_metadata, + bool* has_compression_algorithm) GRPC_MUST_USE_RESULT; +static grpc_error* process_send_initial_metadata( + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_metadata_batch* initial_metadata, bool* has_compression_algorithm) { + call_data* calld = (call_data*)elem->call_data; + channel_data* channeld = (channel_data*)elem->channel_data; *has_compression_algorithm = false; grpc_stream_compression_algorithm stream_compression_algorithm = GRPC_STREAM_COMPRESS_NONE; if (initial_metadata->idx.named.grpc_internal_stream_encoding_request != - NULL) { + nullptr) { grpc_mdelem md = initial_metadata->idx.named.grpc_internal_stream_encoding_request->md; if (!grpc_stream_compression_algorithm_parse( GRPC_MDVALUE(md), &stream_compression_algorithm)) { - char *val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); + char* val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); gpr_log(GPR_ERROR, "Invalid stream compression algorithm: '%s' (unknown). Ignoring.", val); @@ -126,7 +126,7 @@ static grpc_error *process_send_initial_metadata( } if (!GPR_BITGET(channeld->enabled_stream_compression_algorithms_bitset, stream_compression_algorithm)) { - char *val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); + char* val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); gpr_log( GPR_ERROR, "Invalid stream compression algorithm: '%s' (previously disabled). " @@ -141,18 +141,18 @@ static grpc_error *process_send_initial_metadata( initial_metadata->idx.named.grpc_internal_stream_encoding_request); /* Disable message-wise compression */ calld->compression_algorithm = GRPC_COMPRESS_NONE; - if (initial_metadata->idx.named.grpc_internal_encoding_request != NULL) { + if (initial_metadata->idx.named.grpc_internal_encoding_request != nullptr) { grpc_metadata_batch_remove( exec_ctx, initial_metadata, initial_metadata->idx.named.grpc_internal_encoding_request); } } else if (initial_metadata->idx.named.grpc_internal_encoding_request != - NULL) { + nullptr) { grpc_mdelem md = initial_metadata->idx.named.grpc_internal_encoding_request->md; if (!grpc_compression_algorithm_parse(GRPC_MDVALUE(md), &calld->compression_algorithm)) { - char *val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); + char* val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); gpr_log(GPR_ERROR, "Invalid compression algorithm: '%s' (unknown). Ignoring.", val); gpr_free(val); @@ -177,7 +177,7 @@ static grpc_error *process_send_initial_metadata( *has_compression_algorithm = true; } - grpc_error *error = GRPC_ERROR_NONE; + grpc_error* error = GRPC_ERROR_NONE; /* hint compression algorithm */ if (stream_compression_algorithm != GRPC_STREAM_COMPRESS_NONE) { error = grpc_metadata_batch_add_tail( @@ -211,30 +211,30 @@ static grpc_error *process_send_initial_metadata( return error; } -static void send_message_on_complete(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; +static void send_message_on_complete(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &calld->slices); GRPC_CLOSURE_RUN(exec_ctx, calld->original_send_message_on_complete, GRPC_ERROR_REF(error)); } -static void send_message_batch_continue(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - call_data *calld = (call_data *)elem->call_data; +static void send_message_batch_continue(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + call_data* calld = (call_data*)elem->call_data; // Note: The call to grpc_call_next_op() results in yielding the // call combiner, so we need to clear calld->send_message_batch // before we do that. - grpc_transport_stream_op_batch *send_message_batch = + grpc_transport_stream_op_batch* send_message_batch = calld->send_message_batch; - calld->send_message_batch = NULL; + calld->send_message_batch = nullptr; grpc_call_next_op(exec_ctx, elem, send_message_batch); } -static void finish_send_message(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - call_data *calld = (call_data *)elem->call_data; +static void finish_send_message(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + call_data* calld = (call_data*)elem->call_data; // Compress the data if appropriate. grpc_slice_buffer tmp; grpc_slice_buffer_init(&tmp); @@ -243,22 +243,23 @@ static void finish_send_message(grpc_exec_ctx *exec_ctx, bool did_compress = grpc_msg_compress(exec_ctx, calld->compression_algorithm, &calld->slices, &tmp); if (did_compress) { - if (GRPC_TRACER_ON(grpc_compression_trace)) { - const char *algo_name; + if (grpc_compression_trace.enabled()) { + const char* algo_name; const size_t before_size = calld->slices.length; const size_t after_size = tmp.length; const float savings_ratio = 1.0f - (float)after_size / (float)before_size; GPR_ASSERT(grpc_compression_algorithm_name(calld->compression_algorithm, &algo_name)); - gpr_log(GPR_DEBUG, "Compressed[%s] %" PRIuPTR " bytes vs. %" PRIuPTR - " bytes (%.2f%% savings)", + gpr_log(GPR_DEBUG, + "Compressed[%s] %" PRIuPTR " bytes vs. %" PRIuPTR + " bytes (%.2f%% savings)", algo_name, before_size, after_size, 100 * savings_ratio); } grpc_slice_buffer_swap(&calld->slices, &tmp); send_flags |= GRPC_WRITE_INTERNAL_COMPRESS; } else { - if (GRPC_TRACER_ON(grpc_compression_trace)) { - const char *algo_name; + if (grpc_compression_trace.enabled()) { + const char* algo_name; GPR_ASSERT(grpc_compression_algorithm_name(calld->compression_algorithm, &algo_name)); gpr_log(GPR_DEBUG, @@ -282,23 +283,23 @@ static void finish_send_message(grpc_exec_ctx *exec_ctx, send_message_batch_continue(exec_ctx, elem); } -static void fail_send_message_batch_in_call_combiner(grpc_exec_ctx *exec_ctx, - void *arg, - grpc_error *error) { - call_data *calld = (call_data *)arg; - if (calld->send_message_batch != NULL) { +static void fail_send_message_batch_in_call_combiner(grpc_exec_ctx* exec_ctx, + void* arg, + grpc_error* error) { + call_data* calld = (call_data*)arg; + if (calld->send_message_batch != nullptr) { grpc_transport_stream_op_batch_finish_with_failure( exec_ctx, calld->send_message_batch, GRPC_ERROR_REF(error), calld->call_combiner); - calld->send_message_batch = NULL; + calld->send_message_batch = nullptr; } } // Pulls a slice from the send_message byte stream and adds it to calld->slices. -static grpc_error *pull_slice_from_send_message(grpc_exec_ctx *exec_ctx, - call_data *calld) { +static grpc_error* pull_slice_from_send_message(grpc_exec_ctx* exec_ctx, + call_data* calld) { grpc_slice incoming_slice; - grpc_error *error = grpc_byte_stream_pull( + grpc_error* error = grpc_byte_stream_pull( exec_ctx, calld->send_message_batch->payload->send_message.send_message, &incoming_slice); if (error == GRPC_ERROR_NONE) { @@ -311,13 +312,13 @@ static grpc_error *pull_slice_from_send_message(grpc_exec_ctx *exec_ctx, // If all data has been read, invokes finish_send_message(). Otherwise, // an async call to grpc_byte_stream_next() has been started, which will // eventually result in calling on_send_message_next_done(). -static void continue_reading_send_message(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - call_data *calld = (call_data *)elem->call_data; +static void continue_reading_send_message(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem) { + call_data* calld = (call_data*)elem->call_data; while (grpc_byte_stream_next( exec_ctx, calld->send_message_batch->payload->send_message.send_message, ~(size_t)0, &calld->on_send_message_next_done)) { - grpc_error *error = pull_slice_from_send_message(exec_ctx, calld); + grpc_error* error = pull_slice_from_send_message(exec_ctx, calld); if (error != GRPC_ERROR_NONE) { // Closure callback; does not take ownership of error. fail_send_message_batch_in_call_combiner(exec_ctx, calld, error); @@ -333,10 +334,10 @@ static void continue_reading_send_message(grpc_exec_ctx *exec_ctx, } // Async callback for grpc_byte_stream_next(). -static void on_send_message_next_done(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; +static void on_send_message_next_done(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; if (error != GRPC_ERROR_NONE) { // Closure callback; does not take ownership of error. fail_send_message_batch_in_call_combiner(exec_ctx, calld, error); @@ -357,10 +358,10 @@ static void on_send_message_next_done(grpc_exec_ctx *exec_ctx, void *arg, } } -static void start_send_message_batch(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *unused) { - grpc_call_element *elem = (grpc_call_element *)arg; - call_data *calld = (call_data *)elem->call_data; +static void start_send_message_batch(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* unused) { + grpc_call_element* elem = (grpc_call_element*)arg; + call_data* calld = (call_data*)elem->call_data; if (skip_compression( elem, calld->send_message_batch->payload->send_message.send_message->flags, @@ -372,16 +373,16 @@ static void start_send_message_batch(grpc_exec_ctx *exec_ctx, void *arg, } static void compress_start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *batch) { - call_data *calld = (call_data *)elem->call_data; + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* batch) { + call_data* calld = (call_data*)elem->call_data; GPR_TIMER_BEGIN("compress_start_transport_stream_op_batch", 0); // Handle cancel_stream. if (batch->cancel_stream) { GRPC_ERROR_UNREF(calld->cancel_error); calld->cancel_error = GRPC_ERROR_REF(batch->payload->cancel_stream.cancel_error); - if (calld->send_message_batch != NULL) { + if (calld->send_message_batch != nullptr) { if (calld->send_initial_metadata_state == INITIAL_METADATA_UNSEEN) { GRPC_CALL_COMBINER_START( exec_ctx, calld->call_combiner, @@ -405,7 +406,7 @@ static void compress_start_transport_stream_op_batch( if (batch->send_initial_metadata) { GPR_ASSERT(calld->send_initial_metadata_state == INITIAL_METADATA_UNSEEN); bool has_compression_algorithm; - grpc_error *error = process_send_initial_metadata( + grpc_error* error = process_send_initial_metadata( exec_ctx, elem, batch->payload->send_initial_metadata.send_initial_metadata, &has_compression_algorithm); @@ -422,7 +423,7 @@ static void compress_start_transport_stream_op_batch( // for this, since we can't send two batches down while holding the // call combiner, since the connected_channel filter (at the bottom of // the call stack) will release the call combiner for each batch it sees. - if (calld->send_message_batch != NULL) { + if (calld->send_message_batch != nullptr) { GRPC_CALL_COMBINER_START( exec_ctx, calld->call_combiner, &calld->start_send_message_batch_in_call_combiner, GRPC_ERROR_NONE, @@ -431,7 +432,7 @@ static void compress_start_transport_stream_op_batch( } // Handle send_message. if (batch->send_message) { - GPR_ASSERT(calld->send_message_batch == NULL); + GPR_ASSERT(calld->send_message_batch == nullptr); calld->send_message_batch = batch; // If we have not yet seen send_initial_metadata, then we have to // wait. We save the batch in calld and then drop the call @@ -453,10 +454,10 @@ done: } /* Constructor for call_data */ -static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *calld = (call_data *)elem->call_data; +static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { + call_data* calld = (call_data*)elem->call_data; calld->call_combiner = args->call_combiner; calld->cancel_error = GRPC_ERROR_NONE; grpc_slice_buffer_init(&calld->slices); @@ -470,19 +471,19 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *calld = (call_data *)elem->call_data; +static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* ignored) { + call_data* calld = (call_data*)elem->call_data; grpc_slice_buffer_destroy_internal(exec_ctx, &calld->slices); GRPC_ERROR_UNREF(calld->cancel_error); } /* Constructor for channel_data */ -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { - channel_data *channeld = (channel_data *)elem->channel_data; +static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { + channel_data* channeld = (channel_data*)elem->channel_data; /* Configuration for message compression */ channeld->enabled_algorithms_bitset = @@ -530,8 +531,8 @@ static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for channel data */ -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) {} +static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) {} const grpc_channel_filter grpc_message_compress_filter = { compress_start_transport_stream_op_batch, diff --git a/src/core/ext/filters/http/message_compress/message_compress_filter.h b/src/core/ext/filters/http/message_compress/message_compress_filter.h index 92771d9858..79a2815655 100644 --- a/src/core/ext/filters/http/message_compress/message_compress_filter.h +++ b/src/core/ext/filters/http/message_compress/message_compress_filter.h @@ -56,4 +56,4 @@ extern const grpc_channel_filter grpc_message_compress_filter; #endif #endif /* GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H \ - */ + */ diff --git a/src/core/ext/filters/http/server/http_server_filter.cc b/src/core/ext/filters/http/server/http_server_filter.cc index 03958136b4..4f3897915c 100644 --- a/src/core/ext/filters/http/server/http_server_filter.cc +++ b/src/core/ext/filters/http/server/http_server_filter.cc @@ -32,7 +32,7 @@ #define EXPECTED_CONTENT_TYPE_LENGTH sizeof(EXPECTED_CONTENT_TYPE) - 1 typedef struct call_data { - grpc_call_combiner *call_combiner; + grpc_call_combiner* call_combiner; grpc_linked_mdelem status; grpc_linked_mdelem content_type; @@ -42,15 +42,15 @@ typedef struct call_data { /* flag to ensure payload_bin is delivered only once */ bool payload_bin_delivered; - grpc_metadata_batch *recv_initial_metadata; - uint32_t *recv_initial_metadata_flags; + grpc_metadata_batch* recv_initial_metadata; + uint32_t* recv_initial_metadata_flags; /** Closure to call when finished with the hs_on_recv hook */ - grpc_closure *on_done_recv; + grpc_closure* on_done_recv; /** Closure to call when we retrieve read message from the path URI */ - grpc_closure *recv_message_ready; - grpc_closure *on_complete; - grpc_byte_stream **pp_recv_message; + grpc_closure* recv_message_ready; + grpc_closure* on_complete; + grpc_byte_stream** pp_recv_message; grpc_slice_buffer read_slice_buffer; grpc_slice_buffer_stream read_stream; @@ -62,12 +62,14 @@ typedef struct call_data { grpc_closure hs_recv_message_ready; } call_data; -typedef struct channel_data { uint8_t unused; } channel_data; +typedef struct channel_data { + uint8_t unused; +} channel_data; -static grpc_error *server_filter_outgoing_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_metadata_batch *b) { - if (b->idx.named.grpc_message != NULL) { +static grpc_error* server_filter_outgoing_metadata(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_metadata_batch* b) { + if (b->idx.named.grpc_message != nullptr) { grpc_slice pct_encoded_msg = grpc_percent_encode_slice( GRPC_MDVALUE(b->idx.named.grpc_message->md), grpc_compatible_percent_encoding_unreserved_bytes); @@ -82,8 +84,8 @@ static grpc_error *server_filter_outgoing_metadata(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static void add_error(const char *error_name, grpc_error **cumulative, - grpc_error *new_err) { +static void add_error(const char* error_name, grpc_error** cumulative, + grpc_error* new_err) { if (new_err == GRPC_ERROR_NONE) return; if (*cumulative == GRPC_ERROR_NONE) { *cumulative = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_name); @@ -91,14 +93,14 @@ static void add_error(const char *error_name, grpc_error **cumulative, *cumulative = grpc_error_add_child(*cumulative, new_err); } -static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_metadata_batch *b) { - call_data *calld = (call_data *)elem->call_data; - grpc_error *error = GRPC_ERROR_NONE; - static const char *error_name = "Failed processing incoming headers"; +static grpc_error* server_filter_incoming_metadata(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_metadata_batch* b) { + call_data* calld = (call_data*)elem->call_data; + grpc_error* error = GRPC_ERROR_NONE; + static const char* error_name = "Failed processing incoming headers"; - if (b->idx.named.method != NULL) { + if (b->idx.named.method != nullptr) { if (grpc_mdelem_eq(b->idx.named.method->md, GRPC_MDELEM_METHOD_POST)) { *calld->recv_initial_metadata_flags &= ~(GRPC_INITIAL_METADATA_CACHEABLE_REQUEST | @@ -130,7 +132,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":method"))); } - if (b->idx.named.te != NULL) { + if (b->idx.named.te != nullptr) { if (!grpc_mdelem_eq(b->idx.named.te->md, GRPC_MDELEM_TE_TRAILERS)) { add_error(error_name, &error, grpc_attach_md_to_error( @@ -145,7 +147,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, GRPC_ERROR_STR_KEY, grpc_slice_from_static_string("te"))); } - if (b->idx.named.scheme != NULL) { + if (b->idx.named.scheme != nullptr) { if (!grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_HTTP) && !grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_HTTPS) && !grpc_mdelem_eq(b->idx.named.scheme->md, GRPC_MDELEM_SCHEME_GRPC)) { @@ -163,7 +165,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, GRPC_ERROR_STR_KEY, grpc_slice_from_static_string(":scheme"))); } - if (b->idx.named.content_type != NULL) { + if (b->idx.named.content_type != nullptr) { if (!grpc_mdelem_eq(b->idx.named.content_type->md, GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC)) { if (grpc_slice_buf_start_eq(GRPC_MDVALUE(b->idx.named.content_type->md), @@ -183,7 +185,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, } else { /* TODO(klempner): We're currently allowing this, but we shouldn't see it without a proxy so log for now. */ - char *val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.content_type->md), + char* val = grpc_dump_slice(GRPC_MDVALUE(b->idx.named.content_type->md), GPR_DUMP_ASCII); gpr_log(GPR_INFO, "Unexpected content-type '%s'", val); gpr_free(val); @@ -192,7 +194,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, grpc_metadata_batch_remove(exec_ctx, b, b->idx.named.content_type); } - if (b->idx.named.path == NULL) { + if (b->idx.named.path == nullptr) { add_error(error_name, &error, grpc_error_set_str( GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing header"), @@ -203,7 +205,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, * query parameter which is base64 encoded request payload. */ const char k_query_separator = '?'; grpc_slice path_slice = GRPC_MDVALUE(b->idx.named.path->md); - uint8_t *path_ptr = (uint8_t *)GRPC_SLICE_START_PTR(path_slice); + uint8_t* path_ptr = (uint8_t*)GRPC_SLICE_START_PTR(path_slice); size_t path_length = GRPC_SLICE_LENGTH(path_slice); /* offset of the character '?' */ size_t offset = 0; @@ -226,7 +228,7 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, grpc_slice_buffer_add( &calld->read_slice_buffer, grpc_base64_decode_with_len( - exec_ctx, (const char *)GRPC_SLICE_START_PTR(query_slice), + exec_ctx, (const char*)GRPC_SLICE_START_PTR(query_slice), GRPC_SLICE_LENGTH(query_slice), k_url_safe)); grpc_slice_buffer_stream_init(&calld->read_stream, &calld->read_slice_buffer, 0); @@ -237,20 +239,20 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, } } - if (b->idx.named.host != NULL && b->idx.named.authority == NULL) { - grpc_linked_mdelem *el = b->idx.named.host; + if (b->idx.named.host != nullptr && b->idx.named.authority == nullptr) { + grpc_linked_mdelem* el = b->idx.named.host; grpc_mdelem md = GRPC_MDELEM_REF(el->md); grpc_metadata_batch_remove(exec_ctx, b, el); - add_error( - error_name, &error, - grpc_metadata_batch_add_head( - exec_ctx, b, el, grpc_mdelem_from_slices( - exec_ctx, GRPC_MDSTR_AUTHORITY, - grpc_slice_ref_internal(GRPC_MDVALUE(md))))); + add_error(error_name, &error, + grpc_metadata_batch_add_head( + exec_ctx, b, el, + grpc_mdelem_from_slices( + exec_ctx, GRPC_MDSTR_AUTHORITY, + grpc_slice_ref_internal(GRPC_MDVALUE(md))))); GRPC_MDELEM_UNREF(exec_ctx, md); } - if (b->idx.named.authority == NULL) { + if (b->idx.named.authority == nullptr) { add_error( error_name, &error, grpc_error_set_str( @@ -261,10 +263,10 @@ static grpc_error *server_filter_incoming_metadata(grpc_exec_ctx *exec_ctx, return error; } -static void hs_on_recv(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_error *err) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void hs_on_recv(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_error* err) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (err == GRPC_ERROR_NONE) { err = server_filter_incoming_metadata(exec_ctx, elem, calld->recv_initial_metadata); @@ -274,30 +276,30 @@ static void hs_on_recv(grpc_exec_ctx *exec_ctx, void *user_data, GRPC_CLOSURE_RUN(exec_ctx, calld->on_done_recv, err); } -static void hs_on_complete(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_error *err) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void hs_on_complete(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_error* err) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; /* Call recv_message_ready if we got the payload via the path field */ - if (calld->seen_path_with_query && calld->recv_message_ready != NULL) { + if (calld->seen_path_with_query && calld->recv_message_ready != nullptr) { *calld->pp_recv_message = calld->payload_bin_delivered - ? NULL - : (grpc_byte_stream *)&calld->read_stream; + ? nullptr + : (grpc_byte_stream*)&calld->read_stream; // Re-enter call combiner for recv_message_ready, since the surface // code will release the call combiner for each callback it receives. GRPC_CALL_COMBINER_START(exec_ctx, calld->call_combiner, calld->recv_message_ready, GRPC_ERROR_REF(err), "resuming recv_message_ready from on_complete"); - calld->recv_message_ready = NULL; + calld->recv_message_ready = nullptr; calld->payload_bin_delivered = true; } GRPC_CLOSURE_RUN(exec_ctx, calld->on_complete, GRPC_ERROR_REF(err)); } -static void hs_recv_message_ready(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_error *err) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void hs_recv_message_ready(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_error* err) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (calld->seen_path_with_query) { // Do nothing. This is probably a GET request, and payload will be // returned in hs_on_complete callback. @@ -310,15 +312,15 @@ static void hs_recv_message_ready(grpc_exec_ctx *exec_ctx, void *user_data, } } -static grpc_error *hs_mutate_op(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { +static grpc_error* hs_mutate_op(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + grpc_transport_stream_op_batch* op) { /* grab pointers to our data from the call element */ - call_data *calld = (call_data *)elem->call_data; + call_data* calld = (call_data*)elem->call_data; if (op->send_initial_metadata) { - grpc_error *error = GRPC_ERROR_NONE; - static const char *error_name = "Failed sending initial metadata"; + grpc_error* error = GRPC_ERROR_NONE; + static const char* error_name = "Failed sending initial metadata"; add_error( error_name, &error, grpc_metadata_batch_add_head( @@ -339,7 +341,7 @@ static grpc_error *hs_mutate_op(grpc_exec_ctx *exec_ctx, if (op->recv_initial_metadata) { /* substitute our callback for the higher callback */ - GPR_ASSERT(op->payload->recv_initial_metadata.recv_flags != NULL); + GPR_ASSERT(op->payload->recv_initial_metadata.recv_flags != nullptr); calld->recv_initial_metadata = op->payload->recv_initial_metadata.recv_initial_metadata; calld->recv_initial_metadata_flags = @@ -364,7 +366,7 @@ static grpc_error *hs_mutate_op(grpc_exec_ctx *exec_ctx, } if (op->send_trailing_metadata) { - grpc_error *error = server_filter_outgoing_metadata( + grpc_error* error = server_filter_outgoing_metadata( exec_ctx, elem, op->payload->send_trailing_metadata.send_trailing_metadata); if (error != GRPC_ERROR_NONE) return error; @@ -374,11 +376,11 @@ static grpc_error *hs_mutate_op(grpc_exec_ctx *exec_ctx, } static void hs_start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { - call_data *calld = (call_data *)elem->call_data; + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* op) { + call_data* calld = (call_data*)elem->call_data; GPR_TIMER_BEGIN("hs_start_transport_stream_op_batch", 0); - grpc_error *error = hs_mutate_op(exec_ctx, elem, op); + grpc_error* error = hs_mutate_op(exec_ctx, elem, op); if (error != GRPC_ERROR_NONE) { grpc_transport_stream_op_batch_finish_with_failure(exec_ctx, op, error, calld->call_combiner); @@ -389,11 +391,11 @@ static void hs_start_transport_stream_op_batch( } /* Constructor for call_data */ -static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { +static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { /* grab pointers to our data from the call element */ - call_data *calld = (call_data *)elem->call_data; + call_data* calld = (call_data*)elem->call_data; /* initialize members */ calld->call_combiner = args->call_combiner; GRPC_CLOSURE_INIT(&calld->hs_on_recv, hs_on_recv, elem, @@ -407,24 +409,24 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *calld = (call_data *)elem->call_data; +static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* ignored) { + call_data* calld = (call_data*)elem->call_data; grpc_slice_buffer_destroy_internal(exec_ctx, &calld->read_slice_buffer); } /* Constructor for channel_data */ -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { +static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { GPR_ASSERT(!args->is_last); return GRPC_ERROR_NONE; } /* Destructor for channel data */ -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) {} +static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) {} const grpc_channel_filter grpc_http_server_filter = { hs_start_transport_stream_op_batch, diff --git a/src/core/ext/filters/load_reporting/server_load_reporting_filter.cc b/src/core/ext/filters/load_reporting/server_load_reporting_filter.cc index ca8a3b2a13..762198f034 100644 --- a/src/core/ext/filters/load_reporting/server_load_reporting_filter.cc +++ b/src/core/ext/filters/load_reporting/server_load_reporting_filter.cc @@ -43,24 +43,24 @@ typedef struct call_data { /* stores the recv_initial_metadata op's ready closure, which we wrap with our * own (on_initial_md_ready) in order to capture the incoming initial metadata * */ - grpc_closure *ops_recv_initial_metadata_ready; + grpc_closure* ops_recv_initial_metadata_ready; /* to get notified of the availability of the incoming initial metadata. */ grpc_closure on_initial_md_ready; - grpc_metadata_batch *recv_initial_metadata; + grpc_metadata_batch* recv_initial_metadata; } call_data; typedef struct channel_data { intptr_t id; /**< an id unique to the channel */ } channel_data; -static void on_initial_md_ready(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_error *err) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; +static void on_initial_md_ready(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_error* err) { + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (err == GRPC_ERROR_NONE) { - if (calld->recv_initial_metadata->idx.named.path != NULL) { + if (calld->recv_initial_metadata->idx.named.path != nullptr) { calld->service_method = grpc_slice_ref_internal( GRPC_MDVALUE(calld->recv_initial_metadata->idx.named.path->md)); calld->have_service_method = true; @@ -68,7 +68,7 @@ static void on_initial_md_ready(grpc_exec_ctx *exec_ctx, void *user_data, err = grpc_error_add_child( err, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Missing :path header")); } - if (calld->recv_initial_metadata->idx.named.lb_token != NULL) { + if (calld->recv_initial_metadata->idx.named.lb_token != nullptr) { calld->initial_md_string = grpc_slice_ref_internal( GRPC_MDVALUE(calld->recv_initial_metadata->idx.named.lb_token->md)); calld->have_initial_md_string = true; @@ -85,10 +85,10 @@ static void on_initial_md_ready(grpc_exec_ctx *exec_ctx, void *user_data, } /* Constructor for call_data */ -static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - const grpc_call_element_args *args) { - call_data *calld = (call_data *)elem->call_data; +static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, + grpc_call_element* elem, + const grpc_call_element_args* args) { + call_data* calld = (call_data*)elem->call_data; calld->id = (intptr_t)args->call_stack; GRPC_CLOSURE_INIT(&calld->on_initial_md_ready, on_initial_md_ready, elem, grpc_schedule_on_exec_ctx); @@ -108,10 +108,10 @@ static grpc_error *init_call_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - const grpc_call_final_info *final_info, - grpc_closure *ignored) { - call_data *calld = (call_data *)elem->call_data; +static void destroy_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + const grpc_call_final_info* final_info, + grpc_closure* ignored) { + call_data* calld = (call_data*)elem->call_data; /* TODO(dgq): do something with the data channel_data *chand = elem->channel_data; @@ -136,12 +136,12 @@ static void destroy_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, } /* Constructor for channel_data */ -static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { +static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem, + grpc_channel_element_args* args) { GPR_ASSERT(!args->is_last); - channel_data *chand = (channel_data *)elem->channel_data; + channel_data* chand = (channel_data*)elem->channel_data; chand->id = (intptr_t)args->channel_stack; /* TODO(dgq): do something with the data @@ -158,8 +158,8 @@ static grpc_error *init_channel_elem(grpc_exec_ctx *exec_ctx, } /* Destructor for channel data */ -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) { +static void destroy_channel_elem(grpc_exec_ctx* exec_ctx, + grpc_channel_element* elem) { /* TODO(dgq): do something with the data channel_data *chand = elem->channel_data; grpc_load_reporting_call_data lr_call_data = { @@ -173,11 +173,11 @@ static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, */ } -static grpc_filtered_mdelem lr_trailing_md_filter(grpc_exec_ctx *exec_ctx, - void *user_data, +static grpc_filtered_mdelem lr_trailing_md_filter(grpc_exec_ctx* exec_ctx, + void* user_data, grpc_mdelem md) { - grpc_call_element *elem = (grpc_call_element *)user_data; - call_data *calld = (call_data *)elem->call_data; + grpc_call_element* elem = (grpc_call_element*)user_data; + call_data* calld = (call_data*)elem->call_data; if (grpc_slice_eq(GRPC_MDKEY(md), GRPC_MDSTR_LB_COST_BIN)) { calld->trailing_md_string = GRPC_MDVALUE(md); return GRPC_FILTERED_REMOVE(); @@ -186,10 +186,10 @@ static grpc_filtered_mdelem lr_trailing_md_filter(grpc_exec_ctx *exec_ctx, } static void lr_start_transport_stream_op_batch( - grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op_batch *op) { + grpc_exec_ctx* exec_ctx, grpc_call_element* elem, + grpc_transport_stream_op_batch* op) { GPR_TIMER_BEGIN("lr_start_transport_stream_op_batch", 0); - call_data *calld = (call_data *)elem->call_data; + call_data* calld = (call_data*)elem->call_data; if (op->recv_initial_metadata) { /* substitute our callback for the higher callback */ diff --git a/src/core/ext/filters/load_reporting/server_load_reporting_filter.h b/src/core/ext/filters/load_reporting/server_load_reporting_filter.h index 94d19cc249..356f8b8e66 100644 --- a/src/core/ext/filters/load_reporting/server_load_reporting_filter.h +++ b/src/core/ext/filters/load_reporting/server_load_reporting_filter.h @@ -33,4 +33,4 @@ extern const grpc_channel_filter grpc_server_load_reporting_filter; #endif #endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_SERVER_LOAD_REPORTING_FILTER_H \ - */ + */ diff --git a/src/core/ext/filters/load_reporting/server_load_reporting_plugin.cc b/src/core/ext/filters/load_reporting/server_load_reporting_plugin.cc index 223fb3ee8b..ab8387967c 100644 --- a/src/core/ext/filters/load_reporting/server_load_reporting_plugin.cc +++ b/src/core/ext/filters/load_reporting/server_load_reporting_plugin.cc @@ -32,30 +32,30 @@ #include "src/core/lib/surface/call.h" #include "src/core/lib/surface/channel_init.h" -static bool is_load_reporting_enabled(const grpc_channel_args *a) { +static bool is_load_reporting_enabled(const grpc_channel_args* a) { return grpc_channel_arg_get_bool( grpc_channel_args_find(a, GRPC_ARG_ENABLE_LOAD_REPORTING), false); } static bool maybe_add_server_load_reporting_filter( - grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder *builder, void *arg) { - const grpc_channel_args *args = + grpc_exec_ctx* exec_ctx, grpc_channel_stack_builder* builder, void* arg) { + const grpc_channel_args* args = grpc_channel_stack_builder_get_channel_arguments(builder); - const grpc_channel_filter *filter = (const grpc_channel_filter *)arg; - grpc_channel_stack_builder_iterator *it = + const grpc_channel_filter* filter = (const grpc_channel_filter*)arg; + grpc_channel_stack_builder_iterator* it = grpc_channel_stack_builder_iterator_find(builder, filter->name); const bool already_has_load_reporting_filter = !grpc_channel_stack_builder_iterator_is_end(it); grpc_channel_stack_builder_iterator_destroy(it); if (is_load_reporting_enabled(args) && !already_has_load_reporting_filter) { - return grpc_channel_stack_builder_prepend_filter(builder, filter, NULL, - NULL); + return grpc_channel_stack_builder_prepend_filter(builder, filter, nullptr, + nullptr); } return true; } grpc_arg grpc_load_reporting_enable_arg() { - return grpc_channel_arg_integer_create((char *)GRPC_ARG_ENABLE_LOAD_REPORTING, + return grpc_channel_arg_integer_create((char*)GRPC_ARG_ENABLE_LOAD_REPORTING, 1); } @@ -64,7 +64,7 @@ grpc_arg grpc_load_reporting_enable_arg() { extern "C" void grpc_server_load_reporting_plugin_init(void) { grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, maybe_add_server_load_reporting_filter, - (void *)&grpc_server_load_reporting_filter); + (void*)&grpc_server_load_reporting_filter); } extern "C" void grpc_server_load_reporting_plugin_shutdown() {} diff --git a/src/core/ext/filters/load_reporting/server_load_reporting_plugin.h b/src/core/ext/filters/load_reporting/server_load_reporting_plugin.h index 65e254eb53..a6448ce97e 100644 --- a/src/core/ext/filters/load_reporting/server_load_reporting_plugin.h +++ b/src/core/ext/filters/load_reporting/server_load_reporting_plugin.h @@ -49,11 +49,11 @@ typedef struct grpc_load_reporting_call_data { /** Only valid when \a source is \a GRPC_LR_POINT_CALL_DESTRUCTION, that is, * once the call has completed */ - const grpc_call_final_info *final_info; + const grpc_call_final_info* final_info; - const char *initial_md_string; /**< value string for LR's initial md key */ - const char *trailing_md_string; /**< value string for LR's trailing md key */ - const char *method_name; /**< Corresponds to :path header */ + const char* initial_md_string; /**< value string for LR's initial md key */ + const char* trailing_md_string; /**< value string for LR's trailing md key */ + const char* method_name; /**< Corresponds to :path header */ } grpc_load_reporting_call_data; /** Return a \a grpc_arg enabling load reporting */ @@ -64,4 +64,4 @@ grpc_arg grpc_load_reporting_enable_arg(); #endif #endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_SERVER_LOAD_REPORTING_PLUGIN_H \ - */ + */ diff --git a/src/core/ext/filters/max_age/max_age_filter.cc b/src/core/ext/filters/max_age/max_age_filter.cc index ade2e5bc82..001f9f3906 100644 --- a/src/core/ext/filters/max_age/max_age_filter.cc +++ b/src/core/ext/filters/max_age/max_age_filter.cc @@ -126,7 +126,7 @@ static void start_max_age_timer_after_init(grpc_exec_ctx* exec_ctx, void* arg, grpc_exec_ctx_now(exec_ctx) + chand->max_connection_age, &chand->close_max_age_channel); gpr_mu_unlock(&chand->max_age_timer_mu); - grpc_transport_op* op = grpc_make_transport_op(NULL); + grpc_transport_op* op = grpc_make_transport_op(nullptr); op->on_connectivity_state_change = &chand->channel_connectivity_changed, op->connectivity_state = &chand->connectivity_state; grpc_channel_next_op(exec_ctx, @@ -159,7 +159,7 @@ static void close_max_idle_channel(grpc_exec_ctx* exec_ctx, void* arg, if (error == GRPC_ERROR_NONE) { /* Prevent the max idle timer from being set again */ gpr_atm_no_barrier_fetch_add(&chand->call_count, 1); - grpc_transport_op* op = grpc_make_transport_op(NULL); + grpc_transport_op* op = grpc_make_transport_op(nullptr); op->goaway_error = grpc_error_set_int(GRPC_ERROR_CREATE_FROM_STATIC_STRING("max_idle"), GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_NO_ERROR); @@ -204,7 +204,7 @@ static void force_close_max_age_channel(grpc_exec_ctx* exec_ctx, void* arg, chand->max_age_grace_timer_pending = false; gpr_mu_unlock(&chand->max_age_timer_mu); if (error == GRPC_ERROR_NONE) { - grpc_transport_op* op = grpc_make_transport_op(NULL); + grpc_transport_op* op = grpc_make_transport_op(nullptr); op->disconnect_with_error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Channel reaches max age"); grpc_channel_element* elem = @@ -221,7 +221,7 @@ static void channel_connectivity_changed(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { channel_data* chand = (channel_data*)arg; if (chand->connectivity_state != GRPC_CHANNEL_SHUTDOWN) { - grpc_transport_op* op = grpc_make_transport_op(NULL); + grpc_transport_op* op = grpc_make_transport_op(nullptr); op->on_connectivity_state_change = &chand->channel_connectivity_changed, op->connectivity_state = &chand->connectivity_state; grpc_channel_next_op( @@ -398,7 +398,7 @@ static bool maybe_add_max_age_filter(grpc_exec_ctx* exec_ctx, MAX_CONNECTION_IDLE_INTEGER_OPTIONS) != INT_MAX; if (enable) { return grpc_channel_stack_builder_prepend_filter( - builder, &grpc_max_age_filter, NULL, NULL); + builder, &grpc_max_age_filter, nullptr, nullptr); } else { return true; } @@ -407,7 +407,7 @@ static bool maybe_add_max_age_filter(grpc_exec_ctx* exec_ctx, extern "C" void grpc_max_age_filter_init(void) { grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_max_age_filter, NULL); + maybe_add_max_age_filter, nullptr); } extern "C" void grpc_max_age_filter_shutdown(void) {} diff --git a/src/core/ext/filters/message_size/message_size_filter.cc b/src/core/ext/filters/message_size/message_size_filter.cc index 5dc131b9f6..2e81d09961 100644 --- a/src/core/ext/filters/message_size/message_size_filter.cc +++ b/src/core/ext/filters/message_size/message_size_filter.cc @@ -30,40 +30,60 @@ #include "src/core/lib/surface/channel_init.h" #include "src/core/lib/transport/service_config.h" -typedef struct message_size_limits { +typedef struct { int max_send_size; int max_recv_size; } message_size_limits; -static void message_size_limits_free(grpc_exec_ctx* exec_ctx, void* value) { - gpr_free(value); +typedef struct { + gpr_refcount refs; + message_size_limits limits; +} refcounted_message_size_limits; + +static void* refcounted_message_size_limits_ref(void* value) { + refcounted_message_size_limits* limits = + (refcounted_message_size_limits*)value; + gpr_ref(&limits->refs); + return value; +} + +static void refcounted_message_size_limits_unref(grpc_exec_ctx* exec_ctx, + void* value) { + refcounted_message_size_limits* limits = + (refcounted_message_size_limits*)value; + if (gpr_unref(&limits->refs)) { + gpr_free(value); + } } -static void* message_size_limits_create_from_json(const grpc_json* json) { +static void* refcounted_message_size_limits_create_from_json( + const grpc_json* json) { int max_request_message_bytes = -1; int max_response_message_bytes = -1; - for (grpc_json* field = json->child; field != NULL; field = field->next) { - if (field->key == NULL) continue; + for (grpc_json* field = json->child; field != nullptr; field = field->next) { + if (field->key == nullptr) continue; if (strcmp(field->key, "maxRequestMessageBytes") == 0) { - if (max_request_message_bytes >= 0) return NULL; // Duplicate. + if (max_request_message_bytes >= 0) return nullptr; // Duplicate. if (field->type != GRPC_JSON_STRING && field->type != GRPC_JSON_NUMBER) { - return NULL; + return nullptr; } max_request_message_bytes = gpr_parse_nonnegative_int(field->value); - if (max_request_message_bytes == -1) return NULL; + if (max_request_message_bytes == -1) return nullptr; } else if (strcmp(field->key, "maxResponseMessageBytes") == 0) { - if (max_response_message_bytes >= 0) return NULL; // Duplicate. + if (max_response_message_bytes >= 0) return nullptr; // Duplicate. if (field->type != GRPC_JSON_STRING && field->type != GRPC_JSON_NUMBER) { - return NULL; + return nullptr; } max_response_message_bytes = gpr_parse_nonnegative_int(field->value); - if (max_response_message_bytes == -1) return NULL; + if (max_response_message_bytes == -1) return nullptr; } } - message_size_limits* value = - (message_size_limits*)gpr_malloc(sizeof(message_size_limits)); - value->max_send_size = max_request_message_bytes; - value->max_recv_size = max_response_message_bytes; + refcounted_message_size_limits* value = + (refcounted_message_size_limits*)gpr_malloc( + sizeof(refcounted_message_size_limits)); + gpr_ref_init(&value->refs, 1); + value->limits.max_send_size = max_request_message_bytes; + value->limits.max_recv_size = max_response_message_bytes; return value; } @@ -82,7 +102,7 @@ typedef struct call_data { typedef struct channel_data { message_size_limits limits; - // Maps path names to message_size_limits structs. + // Maps path names to refcounted_message_size_limits structs. grpc_slice_hash_table* method_limit_table; } channel_data; @@ -92,7 +112,7 @@ static void recv_message_ready(grpc_exec_ctx* exec_ctx, void* user_data, grpc_error* error) { grpc_call_element* elem = (grpc_call_element*)user_data; call_data* calld = (call_data*)elem->call_data; - if (*calld->recv_message != NULL && calld->limits.max_recv_size >= 0 && + if (*calld->recv_message != nullptr && calld->limits.max_recv_size >= 0 && (*calld->recv_message)->length > (size_t)calld->limits.max_recv_size) { char* message_string; gpr_asprintf(&message_string, @@ -155,7 +175,7 @@ static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, channel_data* chand = (channel_data*)elem->channel_data; call_data* calld = (call_data*)elem->call_data; calld->call_combiner = args->call_combiner; - calld->next_recv_message_ready = NULL; + calld->next_recv_message_ready = nullptr; GRPC_CLOSURE_INIT(&calld->recv_message_ready, recv_message_ready, elem, grpc_schedule_on_exec_ctx); // Get max sizes from channel data, then merge in per-method config values. @@ -163,20 +183,20 @@ static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, // apply the max request size to the send limit and the max response // size to the receive limit. calld->limits = chand->limits; - if (chand->method_limit_table != NULL) { - message_size_limits* limits = - (message_size_limits*)grpc_method_config_table_get( + if (chand->method_limit_table != nullptr) { + refcounted_message_size_limits* limits = + (refcounted_message_size_limits*)grpc_method_config_table_get( exec_ctx, chand->method_limit_table, args->path); - if (limits != NULL) { - if (limits->max_send_size >= 0 && - (limits->max_send_size < calld->limits.max_send_size || + if (limits != nullptr) { + if (limits->limits.max_send_size >= 0 && + (limits->limits.max_send_size < calld->limits.max_send_size || calld->limits.max_send_size < 0)) { - calld->limits.max_send_size = limits->max_send_size; + calld->limits.max_send_size = limits->limits.max_send_size; } - if (limits->max_recv_size >= 0 && - (limits->max_recv_size < calld->limits.max_recv_size || + if (limits->limits.max_recv_size >= 0 && + (limits->limits.max_recv_size < calld->limits.max_recv_size || calld->limits.max_recv_size < 0)) { - calld->limits.max_recv_size = limits->max_recv_size; + calld->limits.max_recv_size = limits->limits.max_recv_size; } } } @@ -230,15 +250,17 @@ static grpc_error* init_channel_elem(grpc_exec_ctx* exec_ctx, // Get method config table from channel args. const grpc_arg* channel_arg = grpc_channel_args_find(args->channel_args, GRPC_ARG_SERVICE_CONFIG); - if (channel_arg != NULL) { + if (channel_arg != nullptr) { GPR_ASSERT(channel_arg->type == GRPC_ARG_STRING); grpc_service_config* service_config = grpc_service_config_create(channel_arg->value.string); - if (service_config != NULL) { + if (service_config != nullptr) { chand->method_limit_table = grpc_service_config_create_method_config_table( - exec_ctx, service_config, message_size_limits_create_from_json, - message_size_limits_free); + exec_ctx, service_config, + refcounted_message_size_limits_create_from_json, + refcounted_message_size_limits_ref, + refcounted_message_size_limits_unref); grpc_service_config_destroy(service_config); } } @@ -277,12 +299,12 @@ static bool maybe_add_message_size_filter(grpc_exec_ctx* exec_ctx, } const grpc_arg* a = grpc_channel_args_find(channel_args, GRPC_ARG_SERVICE_CONFIG); - if (a != NULL) { + if (a != nullptr) { enable = true; } if (enable) { return grpc_channel_stack_builder_prepend_filter( - builder, &grpc_message_size_filter, NULL, NULL); + builder, &grpc_message_size_filter, nullptr, nullptr); } else { return true; } @@ -291,13 +313,13 @@ static bool maybe_add_message_size_filter(grpc_exec_ctx* exec_ctx, extern "C" void grpc_message_size_filter_init(void) { grpc_channel_init_register_stage(GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_message_size_filter, NULL); + maybe_add_message_size_filter, nullptr); grpc_channel_init_register_stage(GRPC_CLIENT_DIRECT_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_message_size_filter, NULL); + maybe_add_message_size_filter, nullptr); grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, - maybe_add_message_size_filter, NULL); + maybe_add_message_size_filter, nullptr); } extern "C" void grpc_message_size_filter_shutdown(void) {} diff --git a/src/core/ext/filters/workarounds/workaround_cronet_compression_filter.cc b/src/core/ext/filters/workarounds/workaround_cronet_compression_filter.cc index f77ed02421..6bbb4d5739 100644 --- a/src/core/ext/filters/workarounds/workaround_cronet_compression_filter.cc +++ b/src/core/ext/filters/workarounds/workaround_cronet_compression_filter.cc @@ -42,7 +42,7 @@ typedef struct call_data { // Find the user agent metadata element in the batch static bool get_user_agent_mdelem(const grpc_metadata_batch* batch, grpc_mdelem* md) { - if (batch->idx.named.user_agent != NULL) { + if (batch->idx.named.user_agent != nullptr) { *md = batch->idx.named.user_agent->md; return true; } @@ -104,7 +104,7 @@ static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, const grpc_call_element_args* args) { call_data* calld = (call_data*)elem->call_data; - calld->next_recv_initial_metadata_ready = NULL; + calld->next_recv_initial_metadata_ready = nullptr; calld->workaround_active = false; GRPC_CLOSURE_INIT(&calld->recv_initial_metadata_ready, recv_initial_metadata_ready, elem, @@ -142,7 +142,7 @@ static bool parse_user_agent(grpc_mdelem md) { long major_version, minor_version; char* head = strtok(user_agent_str, " "); - while (head != NULL) { + while (head != nullptr) { if (!grpc_objc_specifier_seen && 0 == strncmp(head, grpc_objc_specifier, grpc_objc_specifier_len)) { major_version_str = head + grpc_objc_specifier_len; @@ -153,11 +153,11 @@ static bool parse_user_agent(grpc_mdelem md) { break; } - head = strtok(NULL, " "); + head = strtok(nullptr, " "); } if (grpc_objc_specifier_seen) { major_version_str = strtok(major_version_str, "."); - minor_version_str = strtok(NULL, "."); + minor_version_str = strtok(nullptr, "."); major_version = atol(major_version_str); minor_version = atol(minor_version_str); } @@ -186,20 +186,20 @@ static bool register_workaround_cronet_compression( grpc_channel_stack_builder_get_channel_arguments(builder); const grpc_arg* a = grpc_channel_args_find( channel_args, GRPC_ARG_WORKAROUND_CRONET_COMPRESSION); - if (a == NULL) { + if (a == nullptr) { return true; } if (grpc_channel_arg_get_bool(a, false) == false) { return true; } return grpc_channel_stack_builder_prepend_filter( - builder, &grpc_workaround_cronet_compression_filter, NULL, NULL); + builder, &grpc_workaround_cronet_compression_filter, nullptr, nullptr); } extern "C" void grpc_workaround_cronet_compression_filter_init(void) { grpc_channel_init_register_stage( GRPC_SERVER_CHANNEL, GRPC_WORKAROUND_PRIORITY_HIGH, - register_workaround_cronet_compression, NULL); + register_workaround_cronet_compression, nullptr); grpc_register_workaround(GRPC_WORKAROUND_ID_CRONET_COMPRESSION, parse_user_agent); } diff --git a/src/core/ext/filters/workarounds/workaround_utils.cc b/src/core/ext/filters/workarounds/workaround_utils.cc index e600fbee67..9d76582ea2 100644 --- a/src/core/ext/filters/workarounds/workaround_utils.cc +++ b/src/core/ext/filters/workarounds/workaround_utils.cc @@ -21,26 +21,26 @@ user_agent_parser ua_parser[GRPC_MAX_WORKAROUND_ID]; -static void destroy_user_agent_md(void *user_agent_md) { +static void destroy_user_agent_md(void* user_agent_md) { gpr_free(user_agent_md); } -grpc_workaround_user_agent_md *grpc_parse_user_agent(grpc_mdelem md) { - grpc_workaround_user_agent_md *user_agent_md = - (grpc_workaround_user_agent_md *)grpc_mdelem_get_user_data( +grpc_workaround_user_agent_md* grpc_parse_user_agent(grpc_mdelem md) { + grpc_workaround_user_agent_md* user_agent_md = + (grpc_workaround_user_agent_md*)grpc_mdelem_get_user_data( md, destroy_user_agent_md); - if (NULL != user_agent_md) { + if (nullptr != user_agent_md) { return user_agent_md; } - user_agent_md = (grpc_workaround_user_agent_md *)gpr_malloc( + user_agent_md = (grpc_workaround_user_agent_md*)gpr_malloc( sizeof(grpc_workaround_user_agent_md)); for (int i = 0; i < GRPC_MAX_WORKAROUND_ID; i++) { if (ua_parser[i]) { user_agent_md->workaround_active[i] = ua_parser[i](md); } } - grpc_mdelem_set_user_data(md, destroy_user_agent_md, (void *)user_agent_md); + grpc_mdelem_set_user_data(md, destroy_user_agent_md, (void*)user_agent_md); return user_agent_md; } diff --git a/src/core/ext/filters/workarounds/workaround_utils.h b/src/core/ext/filters/workarounds/workaround_utils.h index 3913cae6b2..a954ad4001 100644 --- a/src/core/ext/filters/workarounds/workaround_utils.h +++ b/src/core/ext/filters/workarounds/workaround_utils.h @@ -32,7 +32,7 @@ typedef struct grpc_workaround_user_agent_md { bool workaround_active[GRPC_MAX_WORKAROUND_ID]; } grpc_workaround_user_agent_md; -grpc_workaround_user_agent_md *grpc_parse_user_agent(grpc_mdelem md); +grpc_workaround_user_agent_md* grpc_parse_user_agent(grpc_mdelem md); typedef bool (*user_agent_parser)(grpc_mdelem); diff --git a/src/core/ext/transport/chttp2/alpn/alpn.cc b/src/core/ext/transport/chttp2/alpn/alpn.cc index ca2e801ec8..89892457d6 100644 --- a/src/core/ext/transport/chttp2/alpn/alpn.cc +++ b/src/core/ext/transport/chttp2/alpn/alpn.cc @@ -21,9 +21,9 @@ #include <grpc/support/useful.h> /* in order of preference */ -static const char *const supported_versions[] = {"grpc-exp", "h2"}; +static const char* const supported_versions[] = {"grpc-exp", "h2"}; -int grpc_chttp2_is_alpn_version_supported(const char *version, size_t size) { +int grpc_chttp2_is_alpn_version_supported(const char* version, size_t size) { size_t i; for (i = 0; i < GPR_ARRAY_SIZE(supported_versions); i++) { if (!strncmp(version, supported_versions[i], size)) return 1; @@ -35,7 +35,7 @@ size_t grpc_chttp2_num_alpn_versions(void) { return GPR_ARRAY_SIZE(supported_versions); } -const char *grpc_chttp2_get_alpn_version_index(size_t i) { +const char* grpc_chttp2_get_alpn_version_index(size_t i) { GPR_ASSERT(i < GPR_ARRAY_SIZE(supported_versions)); return supported_versions[i]; } diff --git a/src/core/ext/transport/chttp2/alpn/alpn.h b/src/core/ext/transport/chttp2/alpn/alpn.h index 99b928ea59..4a420e83e0 100644 --- a/src/core/ext/transport/chttp2/alpn/alpn.h +++ b/src/core/ext/transport/chttp2/alpn/alpn.h @@ -26,14 +26,14 @@ extern "C" { #endif /* Retuns 1 if the version is supported, 0 otherwise. */ -int grpc_chttp2_is_alpn_version_supported(const char *version, size_t size); +int grpc_chttp2_is_alpn_version_supported(const char* version, size_t size); /* Returns the number of protocol versions to advertise */ size_t grpc_chttp2_num_alpn_versions(void); /* Returns the protocol version at index i (0 <= i < * grpc_chttp2_num_alpn_versions()) */ -const char *grpc_chttp2_get_alpn_version_index(size_t i); +const char* grpc_chttp2_get_alpn_version_index(size_t i); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/client/chttp2_connector.cc b/src/core/ext/transport/chttp2/client/chttp2_connector.cc index 74839f2156..77cc313480 100644 --- a/src/core/ext/transport/chttp2/client/chttp2_connector.cc +++ b/src/core/ext/transport/chttp2/client/chttp2_connector.cc @@ -45,56 +45,56 @@ typedef struct { bool shutdown; bool connecting; - grpc_closure *notify; + grpc_closure* notify; grpc_connect_in_args args; - grpc_connect_out_args *result; + grpc_connect_out_args* result; - grpc_endpoint *endpoint; // Non-NULL until handshaking starts. + grpc_endpoint* endpoint; // Non-NULL until handshaking starts. grpc_closure connected; - grpc_handshake_manager *handshake_mgr; + grpc_handshake_manager* handshake_mgr; } chttp2_connector; -static void chttp2_connector_ref(grpc_connector *con) { - chttp2_connector *c = (chttp2_connector *)con; +static void chttp2_connector_ref(grpc_connector* con) { + chttp2_connector* c = (chttp2_connector*)con; gpr_ref(&c->refs); } -static void chttp2_connector_unref(grpc_exec_ctx *exec_ctx, - grpc_connector *con) { - chttp2_connector *c = (chttp2_connector *)con; +static void chttp2_connector_unref(grpc_exec_ctx* exec_ctx, + grpc_connector* con) { + chttp2_connector* c = (chttp2_connector*)con; if (gpr_unref(&c->refs)) { gpr_mu_destroy(&c->mu); // If handshaking is not yet in progress, destroy the endpoint. // Otherwise, the handshaker will do this for us. - if (c->endpoint != NULL) grpc_endpoint_destroy(exec_ctx, c->endpoint); + if (c->endpoint != nullptr) grpc_endpoint_destroy(exec_ctx, c->endpoint); gpr_free(c); } } -static void chttp2_connector_shutdown(grpc_exec_ctx *exec_ctx, - grpc_connector *con, grpc_error *why) { - chttp2_connector *c = (chttp2_connector *)con; +static void chttp2_connector_shutdown(grpc_exec_ctx* exec_ctx, + grpc_connector* con, grpc_error* why) { + chttp2_connector* c = (chttp2_connector*)con; gpr_mu_lock(&c->mu); c->shutdown = true; - if (c->handshake_mgr != NULL) { + if (c->handshake_mgr != nullptr) { grpc_handshake_manager_shutdown(exec_ctx, c->handshake_mgr, GRPC_ERROR_REF(why)); } // If handshaking is not yet in progress, shutdown the endpoint. // Otherwise, the handshaker will do this for us. - if (!c->connecting && c->endpoint != NULL) { + if (!c->connecting && c->endpoint != nullptr) { grpc_endpoint_shutdown(exec_ctx, c->endpoint, GRPC_ERROR_REF(why)); } gpr_mu_unlock(&c->mu); GRPC_ERROR_UNREF(why); } -static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_handshaker_args *args = (grpc_handshaker_args *)arg; - chttp2_connector *c = (chttp2_connector *)args->user_data; +static void on_handshake_done(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_handshaker_args* args = (grpc_handshaker_args*)arg; + chttp2_connector* c = (chttp2_connector*)args->user_data; gpr_mu_lock(&c->mu); if (error != GRPC_ERROR_NONE || c->shutdown) { if (error == GRPC_ERROR_NONE) { @@ -124,17 +124,17 @@ static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, args->read_buffer); c->result->channel_args = args->args; } - grpc_closure *notify = c->notify; - c->notify = NULL; + grpc_closure* notify = c->notify; + c->notify = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, notify, error); grpc_handshake_manager_destroy(exec_ctx, c->handshake_mgr); - c->handshake_mgr = NULL; + c->handshake_mgr = nullptr; gpr_mu_unlock(&c->mu); - chttp2_connector_unref(exec_ctx, (grpc_connector *)c); + chttp2_connector_unref(exec_ctx, (grpc_connector*)c); } -static void start_handshake_locked(grpc_exec_ctx *exec_ctx, - chttp2_connector *c) { +static void start_handshake_locked(grpc_exec_ctx* exec_ctx, + chttp2_connector* c) { c->handshake_mgr = grpc_handshake_manager_create(); grpc_handshakers_add(exec_ctx, HANDSHAKER_CLIENT, c->args.channel_args, c->handshake_mgr); @@ -142,12 +142,12 @@ static void start_handshake_locked(grpc_exec_ctx *exec_ctx, c->args.interested_parties); grpc_handshake_manager_do_handshake( exec_ctx, c->handshake_mgr, c->endpoint, c->args.channel_args, - c->args.deadline, NULL /* acceptor */, on_handshake_done, c); - c->endpoint = NULL; // Endpoint handed off to handshake manager. + c->args.deadline, nullptr /* acceptor */, on_handshake_done, c); + c->endpoint = nullptr; // Endpoint handed off to handshake manager. } -static void connected(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { - chttp2_connector *c = (chttp2_connector *)arg; +static void connected(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) { + chttp2_connector* c = (chttp2_connector*)arg; gpr_mu_lock(&c->mu); GPR_ASSERT(c->connecting); c->connecting = false; @@ -158,35 +158,35 @@ static void connected(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { error = GRPC_ERROR_REF(error); } memset(c->result, 0, sizeof(*c->result)); - grpc_closure *notify = c->notify; - c->notify = NULL; + grpc_closure* notify = c->notify; + c->notify = nullptr; GRPC_CLOSURE_SCHED(exec_ctx, notify, error); - if (c->endpoint != NULL) { + if (c->endpoint != nullptr) { grpc_endpoint_shutdown(exec_ctx, c->endpoint, GRPC_ERROR_REF(error)); } gpr_mu_unlock(&c->mu); - chttp2_connector_unref(exec_ctx, (grpc_connector *)arg); + chttp2_connector_unref(exec_ctx, (grpc_connector*)arg); } else { - GPR_ASSERT(c->endpoint != NULL); + GPR_ASSERT(c->endpoint != nullptr); start_handshake_locked(exec_ctx, c); gpr_mu_unlock(&c->mu); } } -static void chttp2_connector_connect(grpc_exec_ctx *exec_ctx, - grpc_connector *con, - const grpc_connect_in_args *args, - grpc_connect_out_args *result, - grpc_closure *notify) { - chttp2_connector *c = (chttp2_connector *)con; +static void chttp2_connector_connect(grpc_exec_ctx* exec_ctx, + grpc_connector* con, + const grpc_connect_in_args* args, + grpc_connect_out_args* result, + grpc_closure* notify) { + chttp2_connector* c = (chttp2_connector*)con; grpc_resolved_address addr; grpc_get_subchannel_address_arg(exec_ctx, args->channel_args, &addr); gpr_mu_lock(&c->mu); - GPR_ASSERT(c->notify == NULL); + GPR_ASSERT(c->notify == nullptr); c->notify = notify; c->args = *args; c->result = result; - GPR_ASSERT(c->endpoint == NULL); + GPR_ASSERT(c->endpoint == nullptr); chttp2_connector_ref(con); // Ref taken for callback. GRPC_CLOSURE_INIT(&c->connected, connected, c, grpc_schedule_on_exec_ctx); GPR_ASSERT(!c->connecting); @@ -201,8 +201,8 @@ static const grpc_connector_vtable chttp2_connector_vtable = { chttp2_connector_ref, chttp2_connector_unref, chttp2_connector_shutdown, chttp2_connector_connect}; -grpc_connector *grpc_chttp2_connector_create() { - chttp2_connector *c = (chttp2_connector *)gpr_zalloc(sizeof(*c)); +grpc_connector* grpc_chttp2_connector_create() { + chttp2_connector* c = (chttp2_connector*)gpr_zalloc(sizeof(*c)); c->base.vtable = &chttp2_connector_vtable; gpr_mu_init(&c->mu); gpr_ref_init(&c->refs, 1); diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.cc b/src/core/ext/transport/chttp2/client/insecure/channel_create.cc index 6410a6043d..028b69e5ff 100644 --- a/src/core/ext/transport/chttp2/client/insecure/channel_create.cc +++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.cc @@ -31,38 +31,38 @@ #include "src/core/lib/surface/channel.h" static void client_channel_factory_ref( - grpc_client_channel_factory *cc_factory) {} + grpc_client_channel_factory* cc_factory) {} static void client_channel_factory_unref( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory) {} + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory) {} -static grpc_subchannel *client_channel_factory_create_subchannel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory, - const grpc_subchannel_args *args) { - grpc_connector *connector = grpc_chttp2_connector_create(); - grpc_subchannel *s = grpc_subchannel_create(exec_ctx, connector, args); +static grpc_subchannel* client_channel_factory_create_subchannel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory, + const grpc_subchannel_args* args) { + grpc_connector* connector = grpc_chttp2_connector_create(); + grpc_subchannel* s = grpc_subchannel_create(exec_ctx, connector, args); grpc_connector_unref(exec_ctx, connector); return s; } -static grpc_channel *client_channel_factory_create_channel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory, - const char *target, grpc_client_channel_type type, - const grpc_channel_args *args) { - if (target == NULL) { +static grpc_channel* client_channel_factory_create_channel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory, + const char* target, grpc_client_channel_type type, + const grpc_channel_args* args) { + if (target == nullptr) { gpr_log(GPR_ERROR, "cannot create channel with NULL target name"); - return NULL; + return nullptr; } // Add channel arg containing the server URI. grpc_arg arg = grpc_channel_arg_string_create( - (char *)GRPC_ARG_SERVER_URI, + (char*)GRPC_ARG_SERVER_URI, grpc_resolver_factory_add_default_prefix_if_needed(exec_ctx, target)); - const char *to_remove[] = {GRPC_ARG_SERVER_URI}; - grpc_channel_args *new_args = + const char* to_remove[] = {GRPC_ARG_SERVER_URI}; + grpc_channel_args* new_args = grpc_channel_args_copy_and_add_and_remove(args, to_remove, 1, &arg, 1); gpr_free(arg.value.string); - grpc_channel *channel = grpc_channel_create(exec_ctx, target, new_args, - GRPC_CLIENT_CHANNEL, NULL); + grpc_channel* channel = grpc_channel_create(exec_ctx, target, new_args, + GRPC_CLIENT_CHANNEL, nullptr); grpc_channel_args_destroy(exec_ctx, new_args); return channel; } @@ -79,26 +79,27 @@ static grpc_client_channel_factory client_channel_factory = { Asynchronously: - resolve target - connect to it (trying alternatives as presented) - perform handshakes */ -grpc_channel *grpc_insecure_channel_create(const char *target, - const grpc_channel_args *args, - void *reserved) { +grpc_channel* grpc_insecure_channel_create(const char* target, + const grpc_channel_args* args, + void* reserved) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; GRPC_API_TRACE( "grpc_insecure_channel_create(target=%s, args=%p, reserved=%p)", 3, (target, args, reserved)); - GPR_ASSERT(reserved == NULL); + GPR_ASSERT(reserved == nullptr); // Add channel arg containing the client channel factory. grpc_arg arg = grpc_client_channel_factory_create_channel_arg(&client_channel_factory); - grpc_channel_args *new_args = grpc_channel_args_copy_and_add(args, &arg, 1); + grpc_channel_args* new_args = grpc_channel_args_copy_and_add(args, &arg, 1); // Create channel. - grpc_channel *channel = client_channel_factory_create_channel( + grpc_channel* channel = client_channel_factory_create_channel( &exec_ctx, &client_channel_factory, target, GRPC_CLIENT_CHANNEL_TYPE_REGULAR, new_args); // Clean up. grpc_channel_args_destroy(&exec_ctx, new_args); grpc_exec_ctx_finish(&exec_ctx); - return channel != NULL ? channel : grpc_lame_client_channel_create( - target, GRPC_STATUS_INTERNAL, - "Failed to create client channel"); + return channel != nullptr ? channel + : grpc_lame_client_channel_create( + target, GRPC_STATUS_INTERNAL, + "Failed to create client channel"); } diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc b/src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc index dd88136f7b..e748d28964 100644 --- a/src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc +++ b/src/core/ext/transport/chttp2/client/insecure/channel_create_posix.cc @@ -35,42 +35,43 @@ #include "src/core/lib/surface/channel.h" #include "src/core/lib/transport/transport.h" -grpc_channel *grpc_insecure_channel_create_from_fd( - const char *target, int fd, const grpc_channel_args *args) { +grpc_channel* grpc_insecure_channel_create_from_fd( + const char* target, int fd, const grpc_channel_args* args) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; GRPC_API_TRACE("grpc_insecure_channel_create(target=%p, fd=%d, args=%p)", 3, (target, fd, args)); grpc_arg default_authority_arg = grpc_channel_arg_string_create( - (char *)GRPC_ARG_DEFAULT_AUTHORITY, (char *)"test.authority"); - grpc_channel_args *final_args = + (char*)GRPC_ARG_DEFAULT_AUTHORITY, (char*)"test.authority"); + grpc_channel_args* final_args = grpc_channel_args_copy_and_add(args, &default_authority_arg, 1); int flags = fcntl(fd, F_GETFL, 0); GPR_ASSERT(fcntl(fd, F_SETFL, flags | O_NONBLOCK) == 0); - grpc_endpoint *client = grpc_tcp_client_create_from_fd( + grpc_endpoint* client = grpc_tcp_client_create_from_fd( &exec_ctx, grpc_fd_create(fd, "client"), args, "fd-client"); - grpc_transport *transport = + grpc_transport* transport = grpc_create_chttp2_transport(&exec_ctx, final_args, client, 1); GPR_ASSERT(transport); - grpc_channel *channel = grpc_channel_create( + grpc_channel* channel = grpc_channel_create( &exec_ctx, target, final_args, GRPC_CLIENT_DIRECT_CHANNEL, transport); grpc_channel_args_destroy(&exec_ctx, final_args); - grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL); + grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr); grpc_exec_ctx_finish(&exec_ctx); - return channel != NULL ? channel : grpc_lame_client_channel_create( - target, GRPC_STATUS_INTERNAL, - "Failed to create client channel"); + return channel != nullptr ? channel + : grpc_lame_client_channel_create( + target, GRPC_STATUS_INTERNAL, + "Failed to create client channel"); } #else // !GPR_SUPPORT_CHANNELS_FROM_FD -grpc_channel *grpc_insecure_channel_create_from_fd( - const char *target, int fd, const grpc_channel_args *args) { +grpc_channel* grpc_insecure_channel_create_from_fd( + const char* target, int fd, const grpc_channel_args* args) { GPR_ASSERT(0); return NULL; } diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.cc b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.cc index fe296cf4ff..dd2bc427a7 100644 --- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.cc +++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.cc @@ -38,60 +38,60 @@ #include "src/core/lib/surface/channel.h" static void client_channel_factory_ref( - grpc_client_channel_factory *cc_factory) {} + grpc_client_channel_factory* cc_factory) {} static void client_channel_factory_unref( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory) {} + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory) {} -static grpc_subchannel_args *get_secure_naming_subchannel_args( - grpc_exec_ctx *exec_ctx, const grpc_subchannel_args *args) { - grpc_channel_credentials *channel_credentials = +static grpc_subchannel_args* get_secure_naming_subchannel_args( + grpc_exec_ctx* exec_ctx, const grpc_subchannel_args* args) { + grpc_channel_credentials* channel_credentials = grpc_channel_credentials_find_in_args(args->args); - if (channel_credentials == NULL) { + if (channel_credentials == nullptr) { gpr_log(GPR_ERROR, "Can't create subchannel: channel credentials missing for secure " "channel."); - return NULL; + return nullptr; } // Make sure security connector does not already exist in args. - if (grpc_security_connector_find_in_args(args->args) != NULL) { + if (grpc_security_connector_find_in_args(args->args) != nullptr) { gpr_log(GPR_ERROR, "Can't create subchannel: security connector already present in " "channel args."); - return NULL; + return nullptr; } // To which address are we connecting? By default, use the server URI. - const grpc_arg *server_uri_arg = + const grpc_arg* server_uri_arg = grpc_channel_args_find(args->args, GRPC_ARG_SERVER_URI); - GPR_ASSERT(server_uri_arg != NULL); + GPR_ASSERT(server_uri_arg != nullptr); GPR_ASSERT(server_uri_arg->type == GRPC_ARG_STRING); - const char *server_uri_str = server_uri_arg->value.string; - GPR_ASSERT(server_uri_str != NULL); - grpc_uri *server_uri = + const char* server_uri_str = server_uri_arg->value.string; + GPR_ASSERT(server_uri_str != nullptr); + grpc_uri* server_uri = grpc_uri_parse(exec_ctx, server_uri_str, true /* supress errors */); - GPR_ASSERT(server_uri != NULL); - const char *server_uri_path; + GPR_ASSERT(server_uri != nullptr); + const char* server_uri_path; server_uri_path = server_uri->path[0] == '/' ? server_uri->path + 1 : server_uri->path; - const grpc_slice_hash_table *targets_info = + const grpc_slice_hash_table* targets_info = grpc_lb_targets_info_find_in_args(args->args); - char *target_name_to_check = NULL; - if (targets_info != NULL) { // LB channel + char* target_name_to_check = nullptr; + if (targets_info != nullptr) { // LB channel // Find the balancer name for the target. - const char *target_uri_str = + const char* target_uri_str = grpc_get_subchannel_address_uri_arg(args->args); - grpc_uri *target_uri = + grpc_uri* target_uri = grpc_uri_parse(exec_ctx, target_uri_str, false /* suppress errors */); - GPR_ASSERT(target_uri != NULL); + GPR_ASSERT(target_uri != nullptr); if (target_uri->path[0] != '\0') { // "path" may be empty const grpc_slice key = grpc_slice_from_static_string( target_uri->path[0] == '/' ? target_uri->path + 1 : target_uri->path); - const char *value = - (const char *)grpc_slice_hash_table_get(targets_info, key); - if (value != NULL) target_name_to_check = gpr_strdup(value); + const char* value = + (const char*)grpc_slice_hash_table_get(targets_info, key); + if (value != nullptr) target_name_to_check = gpr_strdup(value); grpc_slice_unref_internal(exec_ctx, key); } - if (target_name_to_check == NULL) { + if (target_name_to_check == nullptr) { // If the target name to check hasn't already been set, fall back to using // SERVER_URI target_name_to_check = gpr_strdup(server_uri_path); @@ -101,10 +101,10 @@ static grpc_subchannel_args *get_secure_naming_subchannel_args( target_name_to_check = gpr_strdup(server_uri_path); } grpc_uri_destroy(server_uri); - GPR_ASSERT(target_name_to_check != NULL); - grpc_channel_security_connector *subchannel_security_connector = NULL; + GPR_ASSERT(target_name_to_check != nullptr); + grpc_channel_security_connector* subchannel_security_connector = nullptr; // Create the security connector using the credentials and target name. - grpc_channel_args *new_args_from_connector = NULL; + grpc_channel_args* new_args_from_connector = nullptr; const grpc_security_status security_status = grpc_channel_credentials_create_security_connector( exec_ctx, channel_credentials, target_name_to_check, args->args, @@ -114,66 +114,66 @@ static grpc_subchannel_args *get_secure_naming_subchannel_args( "Failed to create secure subchannel for secure name '%s'", target_name_to_check); gpr_free(target_name_to_check); - return NULL; + return nullptr; } gpr_free(target_name_to_check); grpc_arg new_security_connector_arg = grpc_security_connector_to_arg(&subchannel_security_connector->base); - grpc_channel_args *new_args = grpc_channel_args_copy_and_add( - new_args_from_connector != NULL ? new_args_from_connector : args->args, + grpc_channel_args* new_args = grpc_channel_args_copy_and_add( + new_args_from_connector != nullptr ? new_args_from_connector : args->args, &new_security_connector_arg, 1); GRPC_SECURITY_CONNECTOR_UNREF(exec_ctx, &subchannel_security_connector->base, "lb_channel_create"); - if (new_args_from_connector != NULL) { + if (new_args_from_connector != nullptr) { grpc_channel_args_destroy(exec_ctx, new_args_from_connector); } - grpc_subchannel_args *final_sc_args = - (grpc_subchannel_args *)gpr_malloc(sizeof(*final_sc_args)); + grpc_subchannel_args* final_sc_args = + (grpc_subchannel_args*)gpr_malloc(sizeof(*final_sc_args)); memcpy(final_sc_args, args, sizeof(*args)); final_sc_args->args = new_args; return final_sc_args; } -static grpc_subchannel *client_channel_factory_create_subchannel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory, - const grpc_subchannel_args *args) { - grpc_subchannel_args *subchannel_args = +static grpc_subchannel* client_channel_factory_create_subchannel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory, + const grpc_subchannel_args* args) { + grpc_subchannel_args* subchannel_args = get_secure_naming_subchannel_args(exec_ctx, args); - if (subchannel_args == NULL) { + if (subchannel_args == nullptr) { gpr_log( GPR_ERROR, "Failed to create subchannel arguments during subchannel creation."); - return NULL; + return nullptr; } - grpc_connector *connector = grpc_chttp2_connector_create(); - grpc_subchannel *s = + grpc_connector* connector = grpc_chttp2_connector_create(); + grpc_subchannel* s = grpc_subchannel_create(exec_ctx, connector, subchannel_args); grpc_connector_unref(exec_ctx, connector); grpc_channel_args_destroy(exec_ctx, - (grpc_channel_args *)subchannel_args->args); + (grpc_channel_args*)subchannel_args->args); gpr_free(subchannel_args); return s; } -static grpc_channel *client_channel_factory_create_channel( - grpc_exec_ctx *exec_ctx, grpc_client_channel_factory *cc_factory, - const char *target, grpc_client_channel_type type, - const grpc_channel_args *args) { - if (target == NULL) { +static grpc_channel* client_channel_factory_create_channel( + grpc_exec_ctx* exec_ctx, grpc_client_channel_factory* cc_factory, + const char* target, grpc_client_channel_type type, + const grpc_channel_args* args) { + if (target == nullptr) { gpr_log(GPR_ERROR, "cannot create channel with NULL target name"); - return NULL; + return nullptr; } // Add channel arg containing the server URI. grpc_arg arg = grpc_channel_arg_string_create( - (char *)GRPC_ARG_SERVER_URI, + (char*)GRPC_ARG_SERVER_URI, grpc_resolver_factory_add_default_prefix_if_needed(exec_ctx, target)); - const char *to_remove[] = {GRPC_ARG_SERVER_URI}; - grpc_channel_args *new_args = + const char* to_remove[] = {GRPC_ARG_SERVER_URI}; + grpc_channel_args* new_args = grpc_channel_args_copy_and_add_and_remove(args, to_remove, 1, &arg, 1); gpr_free(arg.value.string); - grpc_channel *channel = grpc_channel_create(exec_ctx, target, new_args, - GRPC_CLIENT_CHANNEL, NULL); + grpc_channel* channel = grpc_channel_create(exec_ctx, target, new_args, + GRPC_CLIENT_CHANNEL, nullptr); grpc_channel_args_destroy(exec_ctx, new_args); return channel; } @@ -190,24 +190,24 @@ static grpc_client_channel_factory client_channel_factory = { // Asynchronously: - resolve target // - connect to it (trying alternatives as presented) // - perform handshakes -grpc_channel *grpc_secure_channel_create(grpc_channel_credentials *creds, - const char *target, - const grpc_channel_args *args, - void *reserved) { +grpc_channel* grpc_secure_channel_create(grpc_channel_credentials* creds, + const char* target, + const grpc_channel_args* args, + void* reserved) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; GRPC_API_TRACE( "grpc_secure_channel_create(creds=%p, target=%s, args=%p, " "reserved=%p)", - 4, ((void *)creds, target, (void *)args, (void *)reserved)); - GPR_ASSERT(reserved == NULL); - grpc_channel *channel = NULL; - if (creds != NULL) { + 4, ((void*)creds, target, (void*)args, (void*)reserved)); + GPR_ASSERT(reserved == nullptr); + grpc_channel* channel = nullptr; + if (creds != nullptr) { // Add channel args containing the client channel factory and channel // credentials. grpc_arg args_to_add[] = { grpc_client_channel_factory_create_channel_arg(&client_channel_factory), grpc_channel_credentials_to_arg(creds)}; - grpc_channel_args *new_args = grpc_channel_args_copy_and_add( + grpc_channel_args* new_args = grpc_channel_args_copy_and_add( args, args_to_add, GPR_ARRAY_SIZE(args_to_add)); // Create channel. channel = client_channel_factory_create_channel( @@ -217,8 +217,8 @@ grpc_channel *grpc_secure_channel_create(grpc_channel_credentials *creds, grpc_channel_args_destroy(&exec_ctx, new_args); grpc_exec_ctx_finish(&exec_ctx); } - return channel != NULL ? channel - : grpc_lame_client_channel_create( - target, GRPC_STATUS_INTERNAL, - "Failed to create secure client channel"); + return channel != nullptr ? channel + : grpc_lame_client_channel_create( + target, GRPC_STATUS_INTERNAL, + "Failed to create secure client channel"); } diff --git a/src/core/ext/transport/chttp2/server/chttp2_server.cc b/src/core/ext/transport/chttp2/server/chttp2_server.cc index 7ac7f4ece8..93be5e4081 100644 --- a/src/core/ext/transport/chttp2/server/chttp2_server.cc +++ b/src/core/ext/transport/chttp2/server/chttp2_server.cc @@ -42,34 +42,34 @@ #include "src/core/lib/surface/server.h" typedef struct { - grpc_server *server; - grpc_tcp_server *tcp_server; - grpc_channel_args *args; + grpc_server* server; + grpc_tcp_server* tcp_server; + grpc_channel_args* args; gpr_mu mu; bool shutdown; grpc_closure tcp_server_shutdown_complete; - grpc_closure *server_destroy_listener_done; - grpc_handshake_manager *pending_handshake_mgrs; + grpc_closure* server_destroy_listener_done; + grpc_handshake_manager* pending_handshake_mgrs; } server_state; typedef struct { - server_state *svr_state; - grpc_pollset *accepting_pollset; - grpc_tcp_server_acceptor *acceptor; - grpc_handshake_manager *handshake_mgr; + server_state* svr_state; + grpc_pollset* accepting_pollset; + grpc_tcp_server_acceptor* acceptor; + grpc_handshake_manager* handshake_mgr; } server_connection_state; -static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_handshaker_args *args = (grpc_handshaker_args *)arg; - server_connection_state *connection_state = - (server_connection_state *)args->user_data; +static void on_handshake_done(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_handshaker_args* args = (grpc_handshaker_args*)arg; + server_connection_state* connection_state = + (server_connection_state*)args->user_data; gpr_mu_lock(&connection_state->svr_state->mu); if (error != GRPC_ERROR_NONE || connection_state->svr_state->shutdown) { - const char *error_str = grpc_error_string(error); + const char* error_str = grpc_error_string(error); gpr_log(GPR_DEBUG, "Handshaking failed: %s", error_str); - if (error == GRPC_ERROR_NONE && args->endpoint != NULL) { + if (error == GRPC_ERROR_NONE && args->endpoint != nullptr) { // We were shut down after handshaking completed successfully, so // destroy the endpoint here. // TODO(ctiller): It is currently necessary to shutdown endpoints @@ -86,8 +86,8 @@ static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, // If the handshaking succeeded but there is no endpoint, then the // handshaker may have handed off the connection to some external // code, so we can just clean up here without creating a transport. - if (args->endpoint != NULL) { - grpc_transport *transport = + if (args->endpoint != nullptr) { + grpc_transport* transport = grpc_create_chttp2_transport(exec_ctx, args->args, args->endpoint, 0); grpc_server_setup_transport( exec_ctx, connection_state->svr_state->server, transport, @@ -107,10 +107,10 @@ static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg, gpr_free(connection_state); } -static void on_accept(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp, - grpc_pollset *accepting_pollset, - grpc_tcp_server_acceptor *acceptor) { - server_state *state = (server_state *)arg; +static void on_accept(grpc_exec_ctx* exec_ctx, void* arg, grpc_endpoint* tcp, + grpc_pollset* accepting_pollset, + grpc_tcp_server_acceptor* acceptor) { + server_state* state = (server_state*)arg; gpr_mu_lock(&state->mu); if (state->shutdown) { gpr_mu_unlock(&state->mu); @@ -119,13 +119,13 @@ static void on_accept(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp, gpr_free(acceptor); return; } - grpc_handshake_manager *handshake_mgr = grpc_handshake_manager_create(); + grpc_handshake_manager* handshake_mgr = grpc_handshake_manager_create(); grpc_handshake_manager_pending_list_add(&state->pending_handshake_mgrs, handshake_mgr); gpr_mu_unlock(&state->mu); grpc_tcp_server_ref(state->tcp_server); - server_connection_state *connection_state = - (server_connection_state *)gpr_malloc(sizeof(*connection_state)); + server_connection_state* connection_state = + (server_connection_state*)gpr_malloc(sizeof(*connection_state)); connection_state->svr_state = state; connection_state->accepting_pollset = accepting_pollset; connection_state->acceptor = acceptor; @@ -142,10 +142,10 @@ static void on_accept(grpc_exec_ctx *exec_ctx, void *arg, grpc_endpoint *tcp, } /* Server callback: start listening on our ports */ -static void server_start_listener(grpc_exec_ctx *exec_ctx, grpc_server *server, - void *arg, grpc_pollset **pollsets, +static void server_start_listener(grpc_exec_ctx* exec_ctx, grpc_server* server, + void* arg, grpc_pollset** pollsets, size_t pollset_count) { - server_state *state = (server_state *)arg; + server_state* state = (server_state*)arg; gpr_mu_lock(&state->mu); state->shutdown = false; gpr_mu_unlock(&state->mu); @@ -153,12 +153,12 @@ static void server_start_listener(grpc_exec_ctx *exec_ctx, grpc_server *server, on_accept, state); } -static void tcp_server_shutdown_complete(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - server_state *state = (server_state *)arg; +static void tcp_server_shutdown_complete(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + server_state* state = (server_state*)arg; /* ensure all threads have unlocked */ gpr_mu_lock(&state->mu); - grpc_closure *destroy_done = state->server_destroy_listener_done; + grpc_closure* destroy_done = state->server_destroy_listener_done; GPR_ASSERT(state->shutdown); grpc_handshake_manager_pending_list_shutdown_all( exec_ctx, state->pending_handshake_mgrs, GRPC_ERROR_REF(error)); @@ -166,7 +166,7 @@ static void tcp_server_shutdown_complete(grpc_exec_ctx *exec_ctx, void *arg, // Flush queued work before destroying handshaker factory, since that // may do a synchronous unref. grpc_exec_ctx_flush(exec_ctx); - if (destroy_done != NULL) { + if (destroy_done != nullptr) { destroy_done->cb(exec_ctx, destroy_done->cb_arg, GRPC_ERROR_REF(error)); grpc_exec_ctx_flush(exec_ctx); } @@ -177,31 +177,31 @@ static void tcp_server_shutdown_complete(grpc_exec_ctx *exec_ctx, void *arg, /* Server callback: destroy the tcp listener (so we don't generate further callbacks) */ -static void server_destroy_listener(grpc_exec_ctx *exec_ctx, - grpc_server *server, void *arg, - grpc_closure *destroy_done) { - server_state *state = (server_state *)arg; +static void server_destroy_listener(grpc_exec_ctx* exec_ctx, + grpc_server* server, void* arg, + grpc_closure* destroy_done) { + server_state* state = (server_state*)arg; gpr_mu_lock(&state->mu); state->shutdown = true; state->server_destroy_listener_done = destroy_done; - grpc_tcp_server *tcp_server = state->tcp_server; + grpc_tcp_server* tcp_server = state->tcp_server; gpr_mu_unlock(&state->mu); grpc_tcp_server_shutdown_listeners(exec_ctx, tcp_server); grpc_tcp_server_unref(exec_ctx, tcp_server); } -grpc_error *grpc_chttp2_server_add_port(grpc_exec_ctx *exec_ctx, - grpc_server *server, const char *addr, - grpc_channel_args *args, - int *port_num) { - grpc_resolved_addresses *resolved = NULL; - grpc_tcp_server *tcp_server = NULL; +grpc_error* grpc_chttp2_server_add_port(grpc_exec_ctx* exec_ctx, + grpc_server* server, const char* addr, + grpc_channel_args* args, + int* port_num) { + grpc_resolved_addresses* resolved = nullptr; + grpc_tcp_server* tcp_server = nullptr; size_t i; size_t count = 0; int port_temp; - grpc_error *err = GRPC_ERROR_NONE; - server_state *state = NULL; - grpc_error **errors = NULL; + grpc_error* err = GRPC_ERROR_NONE; + server_state* state = nullptr; + grpc_error** errors = nullptr; size_t naddrs = 0; *port_num = -1; @@ -211,7 +211,7 @@ grpc_error *grpc_chttp2_server_add_port(grpc_exec_ctx *exec_ctx, if (err != GRPC_ERROR_NONE) { goto error; } - state = (server_state *)gpr_zalloc(sizeof(*state)); + state = (server_state*)gpr_zalloc(sizeof(*state)); GRPC_CLOSURE_INIT(&state->tcp_server_shutdown_complete, tcp_server_shutdown_complete, state, grpc_schedule_on_exec_ctx); @@ -228,7 +228,7 @@ grpc_error *grpc_chttp2_server_add_port(grpc_exec_ctx *exec_ctx, gpr_mu_init(&state->mu); naddrs = resolved->naddrs; - errors = (grpc_error **)gpr_malloc(sizeof(*errors) * naddrs); + errors = (grpc_error**)gpr_malloc(sizeof(*errors) * naddrs); for (i = 0; i < naddrs; i++) { errors[i] = grpc_tcp_server_add_port(tcp_server, &resolved->addrs[i], &port_temp); @@ -242,21 +242,22 @@ grpc_error *grpc_chttp2_server_add_port(grpc_exec_ctx *exec_ctx, } } if (count == 0) { - char *msg; + char* msg; gpr_asprintf(&msg, "No address added out of total %" PRIuPTR " resolved", naddrs); err = GRPC_ERROR_CREATE_REFERENCING_FROM_COPIED_STRING(msg, errors, naddrs); gpr_free(msg); goto error; } else if (count != naddrs) { - char *msg; - gpr_asprintf(&msg, "Only %" PRIuPTR - " addresses added out of total %" PRIuPTR " resolved", + char* msg; + gpr_asprintf(&msg, + "Only %" PRIuPTR " addresses added out of total %" PRIuPTR + " resolved", count, naddrs); err = GRPC_ERROR_CREATE_REFERENCING_FROM_COPIED_STRING(msg, errors, naddrs); gpr_free(msg); - const char *warning_message = grpc_error_string(err); + const char* warning_message = grpc_error_string(err); gpr_log(GPR_INFO, "WARNING: %s", warning_message); /* we managed to bind some addresses: continue */ @@ -283,7 +284,7 @@ error: *port_num = 0; done: - if (errors != NULL) { + if (errors != nullptr) { for (i = 0; i < naddrs; i++) { GRPC_ERROR_UNREF(errors[i]); } diff --git a/src/core/ext/transport/chttp2/server/chttp2_server.h b/src/core/ext/transport/chttp2/server/chttp2_server.h index 2ac155160f..4e0e7aa617 100644 --- a/src/core/ext/transport/chttp2/server/chttp2_server.h +++ b/src/core/ext/transport/chttp2/server/chttp2_server.h @@ -29,9 +29,9 @@ extern "C" { /// Adds a port to \a server. Sets \a port_num to the port number. /// Takes ownership of \a args. -grpc_error *grpc_chttp2_server_add_port(grpc_exec_ctx *exec_ctx, - grpc_server *server, const char *addr, - grpc_channel_args *args, int *port_num); +grpc_error* grpc_chttp2_server_add_port(grpc_exec_ctx* exec_ctx, + grpc_server* server, const char* addr, + grpc_channel_args* args, int* port_num); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/server/insecure/server_chttp2.cc b/src/core/ext/transport/chttp2/server/insecure/server_chttp2.cc index d42b2d123e..8984896538 100644 --- a/src/core/ext/transport/chttp2/server/insecure/server_chttp2.cc +++ b/src/core/ext/transport/chttp2/server/insecure/server_chttp2.cc @@ -25,16 +25,16 @@ #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/server.h" -int grpc_server_add_insecure_http2_port(grpc_server *server, const char *addr) { +int grpc_server_add_insecure_http2_port(grpc_server* server, const char* addr) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; int port_num = 0; GRPC_API_TRACE("grpc_server_add_insecure_http2_port(server=%p, addr=%s)", 2, (server, addr)); - grpc_error *err = grpc_chttp2_server_add_port( + grpc_error* err = grpc_chttp2_server_add_port( &exec_ctx, server, addr, grpc_channel_args_copy(grpc_server_get_channel_args(server)), &port_num); if (err != GRPC_ERROR_NONE) { - const char *msg = grpc_error_string(err); + const char* msg = grpc_error_string(err); gpr_log(GPR_ERROR, "%s", msg); GRPC_ERROR_UNREF(err); diff --git a/src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.cc b/src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.cc index e647067f73..007d1be50c 100644 --- a/src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.cc +++ b/src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.cc @@ -34,25 +34,25 @@ #include "src/core/lib/surface/completion_queue.h" #include "src/core/lib/surface/server.h" -void grpc_server_add_insecure_channel_from_fd(grpc_server *server, - void *reserved, int fd) { - GPR_ASSERT(reserved == NULL); +void grpc_server_add_insecure_channel_from_fd(grpc_server* server, + void* reserved, int fd) { + GPR_ASSERT(reserved == nullptr); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - char *name; + char* name; gpr_asprintf(&name, "fd:%d", fd); - grpc_endpoint *server_endpoint = + grpc_endpoint* server_endpoint = grpc_tcp_create(&exec_ctx, grpc_fd_create(fd, name), grpc_server_get_channel_args(server), name); gpr_free(name); - const grpc_channel_args *server_args = grpc_server_get_channel_args(server); - grpc_transport *transport = grpc_create_chttp2_transport( + const grpc_channel_args* server_args = grpc_server_get_channel_args(server); + grpc_transport* transport = grpc_create_chttp2_transport( &exec_ctx, server_args, server_endpoint, 0 /* is_client */); - grpc_pollset **pollsets; + grpc_pollset** pollsets; size_t num_pollsets = 0; grpc_server_get_pollsets(server, &pollsets, &num_pollsets); @@ -60,15 +60,16 @@ void grpc_server_add_insecure_channel_from_fd(grpc_server *server, grpc_endpoint_add_to_pollset(&exec_ctx, server_endpoint, pollsets[i]); } - grpc_server_setup_transport(&exec_ctx, server, transport, NULL, server_args); - grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL); + grpc_server_setup_transport(&exec_ctx, server, transport, nullptr, + server_args); + grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr); grpc_exec_ctx_finish(&exec_ctx); } #else // !GPR_SUPPORT_CHANNELS_FROM_FD -void grpc_server_add_insecure_channel_from_fd(grpc_server *server, - void *reserved, int fd) { +void grpc_server_add_insecure_channel_from_fd(grpc_server* server, + void* reserved, int fd) { GPR_ASSERT(0); } diff --git a/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.cc b/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.cc index e74a138d23..ac3ea40f47 100644 --- a/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.cc +++ b/src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.cc @@ -34,20 +34,20 @@ #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/server.h" -int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr, - grpc_server_credentials *creds) { +int grpc_server_add_secure_http2_port(grpc_server* server, const char* addr, + grpc_server_credentials* creds) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - grpc_error *err = GRPC_ERROR_NONE; - grpc_server_security_connector *sc = NULL; + grpc_error* err = GRPC_ERROR_NONE; + grpc_server_security_connector* sc = nullptr; int port_num = 0; grpc_security_status status; - grpc_channel_args *args = NULL; + grpc_channel_args* args = nullptr; GRPC_API_TRACE( "grpc_server_add_secure_http2_port(" "server=%p, addr=%s, creds=%p)", 3, (server, addr, creds)); // Create security context. - if (creds == NULL) { + if (creds == nullptr) { err = GRPC_ERROR_CREATE_FROM_STATIC_STRING( "No credentials specified for secure server port (creds==NULL)"); goto done; @@ -55,7 +55,7 @@ int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr, status = grpc_server_credentials_create_security_connector(&exec_ctx, creds, &sc); if (status != GRPC_SECURITY_OK) { - char *msg; + char* msg; gpr_asprintf(&msg, "Unable to create secure server with credentials of type %s.", creds->type); @@ -74,12 +74,12 @@ int grpc_server_add_secure_http2_port(grpc_server *server, const char *addr, // Add server port. err = grpc_chttp2_server_add_port(&exec_ctx, server, addr, args, &port_num); done: - if (sc != NULL) { + if (sc != nullptr) { GRPC_SECURITY_CONNECTOR_UNREF(&exec_ctx, &sc->base, "server"); } grpc_exec_ctx_finish(&exec_ctx); if (err != GRPC_ERROR_NONE) { - const char *msg = grpc_error_string(err); + const char* msg = grpc_error_string(err); gpr_log(GPR_ERROR, "%s", msg); GRPC_ERROR_UNREF(err); diff --git a/src/core/ext/transport/chttp2/transport/bin_decoder.cc b/src/core/ext/transport/chttp2/transport/bin_decoder.cc index 5a99cbeffc..3ccae7afc3 100644 --- a/src/core/ext/transport/chttp2/transport/bin_decoder.cc +++ b/src/core/ext/transport/chttp2/transport/bin_decoder.cc @@ -49,7 +49,7 @@ static uint8_t decode_table[] = { static const uint8_t tail_xtra[4] = {0, 0, 1, 2}; -static bool input_is_valid(uint8_t *input_ptr, size_t length) { +static bool input_is_valid(uint8_t* input_ptr, size_t length) { size_t i; for (i = 0; i < length; ++i) { @@ -75,7 +75,7 @@ static bool input_is_valid(uint8_t *input_ptr, size_t length) { #define COMPOSE_OUTPUT_BYTE_2(input_ptr) \ (uint8_t)((decode_table[input_ptr[2]] << 6) | decode_table[input_ptr[3]]) -bool grpc_base64_decode_partial(struct grpc_base64_decode_context *ctx) { +bool grpc_base64_decode_partial(struct grpc_base64_decode_context* ctx) { size_t input_tail; if (ctx->input_cur > ctx->input_end || ctx->output_cur > ctx->output_end) { @@ -130,7 +130,7 @@ bool grpc_base64_decode_partial(struct grpc_base64_decode_context *ctx) { return true; } -grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx *exec_ctx, +grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx* exec_ctx, grpc_slice input) { size_t input_length = GRPC_SLICE_LENGTH(input); size_t output_length = input_length / 4 * 3; @@ -147,7 +147,7 @@ grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx *exec_ctx, } if (input_length > 0) { - uint8_t *input_end = GRPC_SLICE_END_PTR(input); + uint8_t* input_end = GRPC_SLICE_END_PTR(input); if (*(--input_end) == '=') { output_length--; if (*(--input_end) == '=') { @@ -164,7 +164,7 @@ grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx *exec_ctx, ctx.contains_tail = false; if (!grpc_base64_decode_partial(&ctx)) { - char *s = grpc_slice_to_c_string(input); + char* s = grpc_slice_to_c_string(input); gpr_log(GPR_ERROR, "Base64 decoding failed, input string:\n%s\n", s); gpr_free(s); grpc_slice_unref_internal(exec_ctx, output); @@ -175,7 +175,7 @@ grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx *exec_ctx, return output; } -grpc_slice grpc_chttp2_base64_decode_with_length(grpc_exec_ctx *exec_ctx, +grpc_slice grpc_chttp2_base64_decode_with_length(grpc_exec_ctx* exec_ctx, grpc_slice input, size_t output_length) { size_t input_length = GRPC_SLICE_LENGTH(input); @@ -210,7 +210,7 @@ grpc_slice grpc_chttp2_base64_decode_with_length(grpc_exec_ctx *exec_ctx, ctx.contains_tail = true; if (!grpc_base64_decode_partial(&ctx)) { - char *s = grpc_slice_to_c_string(input); + char* s = grpc_slice_to_c_string(input); gpr_log(GPR_ERROR, "Base64 decoding failed, input string:\n%s\n", s); gpr_free(s); grpc_slice_unref_internal(exec_ctx, output); diff --git a/src/core/ext/transport/chttp2/transport/bin_decoder.h b/src/core/ext/transport/chttp2/transport/bin_decoder.h index 1c0b2b7e97..a9c4c9a0f6 100644 --- a/src/core/ext/transport/chttp2/transport/bin_decoder.h +++ b/src/core/ext/transport/chttp2/transport/bin_decoder.h @@ -28,10 +28,10 @@ extern "C" { struct grpc_base64_decode_context { /* input/output: */ - uint8_t *input_cur; - uint8_t *input_end; - uint8_t *output_cur; - uint8_t *output_end; + uint8_t* input_cur; + uint8_t* input_end; + uint8_t* output_cur; + uint8_t* output_end; /* Indicate if the decoder should handle the tail of input data*/ bool contains_tail; }; @@ -40,16 +40,16 @@ struct grpc_base64_decode_context { or output_end is reached. When input_end is reached, (input_end - input_cur) is less than 4. When output_end is reached, (output_end - output_cur) is less than 3. Returns false if decoding is failed. */ -bool grpc_base64_decode_partial(struct grpc_base64_decode_context *ctx); +bool grpc_base64_decode_partial(struct grpc_base64_decode_context* ctx); /* base64 decode a slice with pad chars. Returns a new slice, does not take ownership of the input. Returns an empty slice if decoding is failed. */ -grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx *exec_ctx, grpc_slice input); +grpc_slice grpc_chttp2_base64_decode(grpc_exec_ctx* exec_ctx, grpc_slice input); /* base64 decode a slice without pad chars, data length is needed. Returns a new slice, does not take ownership of the input. Returns an empty slice if decoding is failed. */ -grpc_slice grpc_chttp2_base64_decode_with_length(grpc_exec_ctx *exec_ctx, +grpc_slice grpc_chttp2_base64_decode_with_length(grpc_exec_ctx* exec_ctx, grpc_slice input, size_t output_length); diff --git a/src/core/ext/transport/chttp2/transport/bin_encoder.cc b/src/core/ext/transport/chttp2/transport/bin_encoder.cc index 42d481b3c0..09f984d7b2 100644 --- a/src/core/ext/transport/chttp2/transport/bin_encoder.cc +++ b/src/core/ext/transport/chttp2/transport/bin_encoder.cc @@ -52,8 +52,8 @@ grpc_slice grpc_chttp2_base64_encode(grpc_slice input) { size_t tail_case = input_length % 3; size_t output_length = input_triplets * 4 + tail_xtra[tail_case]; grpc_slice output = GRPC_SLICE_MALLOC(output_length); - uint8_t *in = GRPC_SLICE_START_PTR(input); - char *out = (char *)GRPC_SLICE_START_PTR(output); + uint8_t* in = GRPC_SLICE_START_PTR(input); + char* out = (char*)GRPC_SLICE_START_PTR(output); size_t i; /* encode full triplets */ @@ -85,15 +85,15 @@ grpc_slice grpc_chttp2_base64_encode(grpc_slice input) { break; } - GPR_ASSERT(out == (char *)GRPC_SLICE_END_PTR(output)); + GPR_ASSERT(out == (char*)GRPC_SLICE_END_PTR(output)); GPR_ASSERT(in == GRPC_SLICE_END_PTR(input)); return output; } grpc_slice grpc_chttp2_huffman_compress(grpc_slice input) { size_t nbits; - uint8_t *in; - uint8_t *out; + uint8_t* in; + uint8_t* out; grpc_slice output; uint32_t temp = 0; uint32_t temp_length = 0; @@ -136,17 +136,17 @@ grpc_slice grpc_chttp2_huffman_compress(grpc_slice input) { typedef struct { uint32_t temp; uint32_t temp_length; - uint8_t *out; + uint8_t* out; } huff_out; -static void enc_flush_some(huff_out *out) { +static void enc_flush_some(huff_out* out) { while (out->temp_length > 8) { out->temp_length -= 8; *out->out++ = (uint8_t)(out->temp >> out->temp_length); } } -static void enc_add2(huff_out *out, uint8_t a, uint8_t b) { +static void enc_add2(huff_out* out, uint8_t a, uint8_t b) { b64_huff_sym sa = huff_alphabet[a]; b64_huff_sym sb = huff_alphabet[b]; out->temp = (out->temp << (sa.length + sb.length)) | @@ -155,7 +155,7 @@ static void enc_add2(huff_out *out, uint8_t a, uint8_t b) { enc_flush_some(out); } -static void enc_add1(huff_out *out, uint8_t a) { +static void enc_add1(huff_out* out, uint8_t a) { b64_huff_sym sa = huff_alphabet[a]; out->temp = (out->temp << sa.length) | sa.bits; out->temp_length += sa.length; @@ -170,8 +170,8 @@ grpc_slice grpc_chttp2_base64_encode_and_huffman_compress(grpc_slice input) { size_t max_output_bits = 11 * output_syms; size_t max_output_length = max_output_bits / 8 + (max_output_bits % 8 != 0); grpc_slice output = GRPC_SLICE_MALLOC(max_output_length); - uint8_t *in = GRPC_SLICE_START_PTR(input); - uint8_t *start_out = GRPC_SLICE_START_PTR(output); + uint8_t* in = GRPC_SLICE_START_PTR(input); + uint8_t* start_out = GRPC_SLICE_START_PTR(output); huff_out out; size_t i; diff --git a/src/core/ext/transport/chttp2/transport/chttp2_plugin.cc b/src/core/ext/transport/chttp2/transport/chttp2_plugin.cc index ac9ae5c395..2569347def 100644 --- a/src/core/ext/transport/chttp2/transport/chttp2_plugin.cc +++ b/src/core/ext/transport/chttp2/transport/chttp2_plugin.cc @@ -20,13 +20,6 @@ #include "src/core/lib/debug/trace.h" #include "src/core/lib/transport/metadata.h" -extern "C" void grpc_chttp2_plugin_init(void) { - grpc_register_tracer(&grpc_http_trace); - grpc_register_tracer(&grpc_flowctl_trace); - grpc_register_tracer(&grpc_trace_http2_stream_state); -#ifndef NDEBUG - grpc_register_tracer(&grpc_trace_chttp2_refcount); -#endif -} +extern "C" void grpc_chttp2_plugin_init(void) {} extern "C" void grpc_chttp2_plugin_shutdown(void) {} diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.cc b/src/core/ext/transport/chttp2/transport/chttp2_transport.cc index 02fc53122d..01a16955d9 100644 --- a/src/core/ext/transport/chttp2/transport/chttp2_transport.cc +++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.cc @@ -90,103 +90,99 @@ static int g_default_max_pings_without_data = DEFAULT_MAX_PINGS_BETWEEN_DATA; static int g_default_max_ping_strikes = DEFAULT_MAX_PING_STRIKES; #define MAX_CLIENT_STREAM_ID 0x7fffffffu -grpc_tracer_flag grpc_http_trace = GRPC_TRACER_INITIALIZER(false, "http"); -grpc_tracer_flag grpc_flowctl_trace = GRPC_TRACER_INITIALIZER(false, "flowctl"); - -#ifndef NDEBUG -grpc_tracer_flag grpc_trace_chttp2_refcount = - GRPC_TRACER_INITIALIZER(false, "chttp2_refcount"); -#endif +grpc_core::TraceFlag grpc_http_trace(false, "http"); +grpc_core::DebugOnlyTraceFlag grpc_trace_chttp2_refcount(false, + "chttp2_refcount"); /* forward declarations of various callbacks that we'll build closures around */ -static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *t, - grpc_error *error); -static void write_action(grpc_exec_ctx *exec_ctx, void *t, grpc_error *error); -static void write_action_end_locked(grpc_exec_ctx *exec_ctx, void *t, - grpc_error *error); +static void write_action_begin_locked(grpc_exec_ctx* exec_ctx, void* t, + grpc_error* error); +static void write_action(grpc_exec_ctx* exec_ctx, void* t, grpc_error* error); +static void write_action_end_locked(grpc_exec_ctx* exec_ctx, void* t, + grpc_error* error); -static void read_action_locked(grpc_exec_ctx *exec_ctx, void *t, - grpc_error *error); +static void read_action_locked(grpc_exec_ctx* exec_ctx, void* t, + grpc_error* error); -static void complete_fetch_locked(grpc_exec_ctx *exec_ctx, void *gs, - grpc_error *error); +static void complete_fetch_locked(grpc_exec_ctx* exec_ctx, void* gs, + grpc_error* error); /** Set a transport level setting, and push it to our peer */ -static void queue_setting_update(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static void queue_setting_update(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_setting_id id, uint32_t value); -static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_error *error); +static void close_from_api(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_error* error); /** Start new streams that have been created if we can */ -static void maybe_start_some_streams(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); +static void maybe_start_some_streams(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); -static void connectivity_state_set(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static void connectivity_state_set(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_connectivity_state state, - grpc_error *error, const char *reason); + grpc_error* error, const char* reason); -static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, - void *byte_stream, - grpc_error *error_ignored); +static void incoming_byte_stream_destroy_locked(grpc_exec_ctx* exec_ctx, + void* byte_stream, + grpc_error* error_ignored); static void incoming_byte_stream_publish_error( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_error *error); -static void incoming_byte_stream_unref(grpc_exec_ctx *exec_ctx, - grpc_chttp2_incoming_byte_stream *bs); - -static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *t, - grpc_error *error); -static void destructive_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *t, - grpc_error *error); - -static void post_benign_reclaimer(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static void post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); - -static void close_transport_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, grpc_error *error); -static void end_all_the_calls(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error); - -static void schedule_bdp_ping_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static void start_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error); -static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error); -static void next_bdp_ping_timer_expired_locked(grpc_exec_ctx *exec_ctx, - void *tp, grpc_error *error); - -static void cancel_pings(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error); -static void send_ping_locked(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_closure *on_initiate, - grpc_closure *on_complete); -static void retry_initiate_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error); + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_error* error); +static void incoming_byte_stream_unref(grpc_exec_ctx* exec_ctx, + grpc_chttp2_incoming_byte_stream* bs); + +static void benign_reclaimer_locked(grpc_exec_ctx* exec_ctx, void* t, + grpc_error* error); +static void destructive_reclaimer_locked(grpc_exec_ctx* exec_ctx, void* t, + grpc_error* error); + +static void post_benign_reclaimer(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static void post_destructive_reclaimer(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); + +static void close_transport_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_error* error); +static void end_all_the_calls(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error); + +static void schedule_bdp_ping_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static void start_bdp_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error); +static void finish_bdp_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error); +static void next_bdp_ping_timer_expired_locked(grpc_exec_ctx* exec_ctx, + void* tp, grpc_error* error); + +static void cancel_pings(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error); +static void send_ping_locked(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_closure* on_initiate, + grpc_closure* on_complete); +static void retry_initiate_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error); /** keepalive-relevant functions */ -static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); -static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); -static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); -static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); - -static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); +static void init_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); +static void start_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); +static void finish_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); +static void keepalive_watchdog_fired_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); + +static void reset_byte_stream(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); /******************************************************************************* * CONSTRUCTION/DESTRUCTION/REFCOUNTING */ -static void destruct_transport(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static void destruct_transport(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { size_t i; grpc_endpoint_destroy(exec_ctx, t->ep); @@ -201,10 +197,12 @@ static void destruct_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_goaway_parser_destroy(&t->goaway_parser); for (i = 0; i < STREAM_LIST_COUNT; i++) { - GPR_ASSERT(t->lists[i].head == NULL); - GPR_ASSERT(t->lists[i].tail == NULL); + GPR_ASSERT(t->lists[i].head == nullptr); + GPR_ASSERT(t->lists[i].tail == nullptr); } + GRPC_ERROR_UNREF(t->goaway_error); + GPR_ASSERT(grpc_chttp2_stream_map_size(&t->stream_map) == 0); grpc_chttp2_stream_map_destroy(&t->stream_map); @@ -216,7 +214,7 @@ static void destruct_transport(grpc_exec_ctx *exec_ctx, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Transport destroyed")); while (t->write_cb_pool) { - grpc_chttp2_write_cb *next = t->write_cb_pool->next; + grpc_chttp2_write_cb* next = t->write_cb_pool->next; gpr_free(t->write_cb_pool); t->write_cb_pool = next; } @@ -230,10 +228,10 @@ static void destruct_transport(grpc_exec_ctx *exec_ctx, } #ifndef NDEBUG -void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, const char *reason, - const char *file, int line) { - if (GRPC_TRACER_ON(grpc_trace_chttp2_refcount)) { +void grpc_chttp2_unref_transport(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, const char* reason, + const char* file, int line) { + if (grpc_trace_chttp2_refcount.enabled()) { gpr_atm val = gpr_atm_no_barrier_load(&t->refs.count); gpr_log(GPR_DEBUG, "chttp2:unref:%p %" PRIdPTR "->%" PRIdPTR " %s [%s:%d]", t, val, val - 1, reason, file, line); @@ -242,9 +240,9 @@ void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, destruct_transport(exec_ctx, t); } -void grpc_chttp2_ref_transport(grpc_chttp2_transport *t, const char *reason, - const char *file, int line) { - if (GRPC_TRACER_ON(grpc_trace_chttp2_refcount)) { +void grpc_chttp2_ref_transport(grpc_chttp2_transport* t, const char* reason, + const char* file, int line) { + if (grpc_trace_chttp2_refcount.enabled()) { gpr_atm val = gpr_atm_no_barrier_load(&t->refs.count); gpr_log(GPR_DEBUG, "chttp2: ref:%p %" PRIdPTR "->%" PRIdPTR " %s [%s:%d]", t, val, val + 1, reason, file, line); @@ -252,20 +250,20 @@ void grpc_chttp2_ref_transport(grpc_chttp2_transport *t, const char *reason, gpr_ref(&t->refs); } #else -void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +void grpc_chttp2_unref_transport(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { if (!gpr_unref(&t->refs)) return; destruct_transport(exec_ctx, t); } -void grpc_chttp2_ref_transport(grpc_chttp2_transport *t) { gpr_ref(&t->refs); } +void grpc_chttp2_ref_transport(grpc_chttp2_transport* t) { gpr_ref(&t->refs); } #endif -static const grpc_transport_vtable *get_vtable(void); +static const grpc_transport_vtable* get_vtable(void); -static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - const grpc_channel_args *channel_args, - grpc_endpoint *ep, bool is_client) { +static void init_transport(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + const grpc_channel_args* channel_args, + grpc_endpoint* ep, bool is_client) { size_t i; int j; @@ -320,6 +318,7 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, keepalive_watchdog_fired_locked, t, grpc_combiner_scheduler(t->combiner)); + t->goaway_error = GRPC_ERROR_NONE; grpc_chttp2_goaway_parser_init(&t->goaway_parser); grpc_chttp2_hpack_parser_init(exec_ctx, &t->hpack_parser); @@ -494,7 +493,7 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, } } else { static const struct { - const char *channel_arg_name; + const char* channel_arg_name; grpc_chttp2_setting_id setting_id; grpc_integer_options integer_options; bool availability[2] /* server, client */; @@ -572,7 +571,7 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, schedule_bdp_ping_locked(exec_ctx, t); grpc_chttp2_act_on_flowctl_action( - exec_ctx, t->flow_control->PeriodicUpdate(exec_ctx), t, NULL); + exec_ctx, t->flow_control->PeriodicUpdate(exec_ctx), t, nullptr); } grpc_chttp2_initiate_write(exec_ctx, t, @@ -580,9 +579,9 @@ static void init_transport(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, post_benign_reclaimer(exec_ctx, t); } -static void destroy_transport_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; +static void destroy_transport_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; t->destroying = 1; close_transport_locked( exec_ctx, t, @@ -592,17 +591,17 @@ static void destroy_transport_locked(grpc_exec_ctx *exec_ctx, void *tp, GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "destroy"); } -static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; +static void destroy_transport(grpc_exec_ctx* exec_ctx, grpc_transport* gt) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; GRPC_CLOSURE_SCHED(exec_ctx, GRPC_CLOSURE_CREATE(destroy_transport_locked, t, grpc_combiner_scheduler(t->combiner)), GRPC_ERROR_NONE); } -static void close_transport_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_error *error) { +static void close_transport_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_error* error) { end_all_the_calls(exec_ctx, t, GRPC_ERROR_REF(error)); cancel_pings(exec_ctx, t, GRPC_ERROR_REF(error)); if (t->closed_with_error == GRPC_ERROR_NONE) { @@ -611,7 +610,7 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx, GRPC_STATUS_UNAVAILABLE); } if (t->write_state != GRPC_CHTTP2_WRITE_STATE_IDLE) { - if (t->close_transport_on_writes_finished == NULL) { + if (t->close_transport_on_writes_finished == nullptr) { t->close_transport_on_writes_finished = GRPC_ERROR_CREATE_FROM_STATIC_STRING( "Delayed close due to in-progress write"); @@ -645,7 +644,7 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx, } /* flush writable stream list to avoid dangling references */ - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; while (grpc_chttp2_list_pop_writable_stream(t, &s)) { GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "chttp2_writing:close"); } @@ -656,28 +655,28 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx, } #ifndef NDEBUG -void grpc_chttp2_stream_ref(grpc_chttp2_stream *s, const char *reason) { +void grpc_chttp2_stream_ref(grpc_chttp2_stream* s, const char* reason) { grpc_stream_ref(s->refcount, reason); } -void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s, - const char *reason) { +void grpc_chttp2_stream_unref(grpc_exec_ctx* exec_ctx, grpc_chttp2_stream* s, + const char* reason) { grpc_stream_unref(exec_ctx, s->refcount, reason); } #else -void grpc_chttp2_stream_ref(grpc_chttp2_stream *s) { +void grpc_chttp2_stream_ref(grpc_chttp2_stream* s) { grpc_stream_ref(s->refcount); } -void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s) { +void grpc_chttp2_stream_unref(grpc_exec_ctx* exec_ctx, grpc_chttp2_stream* s) { grpc_stream_unref(exec_ctx, s->refcount); } #endif -static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_stream_refcount *refcount, - const void *server_data, gpr_arena *arena) { +static int init_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_stream_refcount* refcount, + const void* server_data, gpr_arena* arena) { GPR_TIMER_BEGIN("init_stream", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; - grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; + grpc_chttp2_stream* s = (grpc_chttp2_stream*)gs; s->t = t; s->refcount = refcount; @@ -717,16 +716,16 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, return 0; } -static void destroy_stream_locked(grpc_exec_ctx *exec_ctx, void *sp, - grpc_error *error) { - grpc_chttp2_stream *s = (grpc_chttp2_stream *)sp; - grpc_chttp2_transport *t = s->t; +static void destroy_stream_locked(grpc_exec_ctx* exec_ctx, void* sp, + grpc_error* error) { + grpc_chttp2_stream* s = (grpc_chttp2_stream*)sp; + grpc_chttp2_transport* t = s->t; GPR_TIMER_BEGIN("destroy_stream", 0); GPR_ASSERT((s->write_closed && s->read_closed) || s->id == 0); if (s->id != 0) { - GPR_ASSERT(grpc_chttp2_stream_map_find(&t->stream_map, s->id) == NULL); + GPR_ASSERT(grpc_chttp2_stream_map_find(&t->stream_map, s->id) == nullptr); } grpc_slice_buffer_destroy_internal(exec_ctx, @@ -746,12 +745,12 @@ static void destroy_stream_locked(grpc_exec_ctx *exec_ctx, void *sp, } } - GPR_ASSERT(s->send_initial_metadata_finished == NULL); - GPR_ASSERT(s->fetching_send_message == NULL); - GPR_ASSERT(s->send_trailing_metadata_finished == NULL); - GPR_ASSERT(s->recv_initial_metadata_ready == NULL); - GPR_ASSERT(s->recv_message_ready == NULL); - GPR_ASSERT(s->recv_trailing_metadata_finished == NULL); + GPR_ASSERT(s->send_initial_metadata_finished == nullptr); + GPR_ASSERT(s->fetching_send_message == nullptr); + GPR_ASSERT(s->send_trailing_metadata_finished == nullptr); + GPR_ASSERT(s->recv_initial_metadata_ready == nullptr); + GPR_ASSERT(s->recv_message_ready == nullptr); + GPR_ASSERT(s->recv_trailing_metadata_finished == nullptr); grpc_chttp2_data_parser_destroy(exec_ctx, &s->data_parser); grpc_chttp2_incoming_metadata_buffer_destroy(exec_ctx, &s->metadata_buffer[0]); @@ -771,48 +770,49 @@ static void destroy_stream_locked(grpc_exec_ctx *exec_ctx, void *sp, GRPC_CLOSURE_SCHED(exec_ctx, s->destroy_stream_arg, GRPC_ERROR_NONE); } -static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_closure *then_schedule_closure) { +static void destroy_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_closure* then_schedule_closure) { GPR_TIMER_BEGIN("destroy_stream", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; - grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; + grpc_chttp2_stream* s = (grpc_chttp2_stream*)gs; - if (s->stream_compression_ctx != NULL) { + if (s->stream_compression_ctx != nullptr) { grpc_stream_compression_context_destroy(s->stream_compression_ctx); - s->stream_compression_ctx = NULL; + s->stream_compression_ctx = nullptr; } - if (s->stream_decompression_ctx != NULL) { + if (s->stream_decompression_ctx != nullptr) { grpc_stream_compression_context_destroy(s->stream_decompression_ctx); - s->stream_decompression_ctx = NULL; + s->stream_decompression_ctx = nullptr; } s->destroy_stream_arg = then_schedule_closure; GRPC_CLOSURE_SCHED( - exec_ctx, GRPC_CLOSURE_INIT(&s->destroy_stream, destroy_stream_locked, s, - grpc_combiner_scheduler(t->combiner)), + exec_ctx, + GRPC_CLOSURE_INIT(&s->destroy_stream, destroy_stream_locked, s, + grpc_combiner_scheduler(t->combiner)), GRPC_ERROR_NONE); GPR_TIMER_END("destroy_stream", 0); } -grpc_chttp2_stream *grpc_chttp2_parsing_lookup_stream(grpc_chttp2_transport *t, +grpc_chttp2_stream* grpc_chttp2_parsing_lookup_stream(grpc_chttp2_transport* t, uint32_t id) { - return (grpc_chttp2_stream *)grpc_chttp2_stream_map_find(&t->stream_map, id); + return (grpc_chttp2_stream*)grpc_chttp2_stream_map_find(&t->stream_map, id); } -grpc_chttp2_stream *grpc_chttp2_parsing_accept_stream(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +grpc_chttp2_stream* grpc_chttp2_parsing_accept_stream(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, uint32_t id) { - if (t->channel_callback.accept_stream == NULL) { - return NULL; + if (t->channel_callback.accept_stream == nullptr) { + return nullptr; } - grpc_chttp2_stream *accepting; - GPR_ASSERT(t->accepting_stream == NULL); + grpc_chttp2_stream* accepting; + GPR_ASSERT(t->accepting_stream == nullptr); t->accepting_stream = &accepting; t->channel_callback.accept_stream(exec_ctx, t->channel_callback.accept_stream_user_data, - &t->base, (void *)(uintptr_t)id); - t->accepting_stream = NULL; + &t->base, (void*)(uintptr_t)id); + t->accepting_stream = nullptr; return accepting; } @@ -820,7 +820,7 @@ grpc_chttp2_stream *grpc_chttp2_parsing_accept_stream(grpc_exec_ctx *exec_ctx, * OUTPUT PROCESSING */ -static const char *write_state_name(grpc_chttp2_write_state st) { +static const char* write_state_name(grpc_chttp2_write_state st) { switch (st) { case GRPC_CHTTP2_WRITE_STATE_IDLE: return "IDLE"; @@ -832,8 +832,8 @@ static const char *write_state_name(grpc_chttp2_write_state st) { GPR_UNREACHABLE_CODE(return "UNKNOWN"); } -static void set_write_state(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_write_state st, const char *reason) { +static void set_write_state(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_write_state st, const char* reason) { GRPC_CHTTP2_IF_TRACING(gpr_log(GPR_DEBUG, "W:%p %s state %s -> %s [%s]", t, t->is_client ? "CLIENT" : "SERVER", write_state_name(t->write_state), @@ -841,16 +841,16 @@ static void set_write_state(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, t->write_state = st; if (st == GRPC_CHTTP2_WRITE_STATE_IDLE) { GRPC_CLOSURE_LIST_SCHED(exec_ctx, &t->run_after_write); - if (t->close_transport_on_writes_finished != NULL) { - grpc_error *err = t->close_transport_on_writes_finished; - t->close_transport_on_writes_finished = NULL; + if (t->close_transport_on_writes_finished != nullptr) { + grpc_error* err = t->close_transport_on_writes_finished; + t->close_transport_on_writes_finished = nullptr; close_transport_locked(exec_ctx, t, err); } } } static void inc_initiate_write_reason( - grpc_exec_ctx *exec_ctx, grpc_chttp2_initiate_write_reason reason) { + grpc_exec_ctx* exec_ctx, grpc_chttp2_initiate_write_reason reason) { switch (reason) { case GRPC_CHTTP2_INITIATE_WRITE_INITIAL_WRITE: GRPC_STATS_INC_HTTP2_INITIATE_WRITE_DUE_TO_INITIAL_WRITE(exec_ctx); @@ -921,8 +921,8 @@ static void inc_initiate_write_reason( } } -void grpc_chttp2_initiate_write(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +void grpc_chttp2_initiate_write(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_initiate_write_reason reason) { GPR_TIMER_BEGIN("grpc_chttp2_initiate_write", 0); @@ -950,16 +950,16 @@ void grpc_chttp2_initiate_write(grpc_exec_ctx *exec_ctx, GPR_TIMER_END("grpc_chttp2_initiate_write", 0); } -void grpc_chttp2_mark_stream_writable(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_mark_stream_writable(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { if (t->closed_with_error == GRPC_ERROR_NONE && grpc_chttp2_list_add_writable_stream(t, s)) { GRPC_CHTTP2_STREAM_REF(s, "chttp2_writing:become"); } } -static grpc_closure_scheduler *write_scheduler(grpc_chttp2_transport *t, +static grpc_closure_scheduler* write_scheduler(grpc_chttp2_transport* t, bool early_results_scheduled, bool partial_write) { /* if it's not the first write in a batch, always offload to the executor: @@ -983,11 +983,11 @@ static grpc_closure_scheduler *write_scheduler(grpc_chttp2_transport *t, case GRPC_CHTTP2_OPTIMIZE_FOR_LATENCY: return grpc_schedule_on_exec_ctx; } - GPR_UNREACHABLE_CODE(return NULL); + GPR_UNREACHABLE_CODE(return nullptr); } #define WRITE_STATE_TUPLE_TO_INT(p, i) (2 * (int)(p) + (int)(i)) -static const char *begin_writing_desc(bool partial, bool inlined) { +static const char* begin_writing_desc(bool partial, bool inlined) { switch (WRITE_STATE_TUPLE_TO_INT(partial, inlined)) { case WRITE_STATE_TUPLE_TO_INT(false, false): return "begin write in background"; @@ -1001,10 +1001,10 @@ static const char *begin_writing_desc(bool partial, bool inlined) { GPR_UNREACHABLE_CODE(return "bad state tuple"); } -static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *gt, - grpc_error *error_ignored) { +static void write_action_begin_locked(grpc_exec_ctx* exec_ctx, void* gt, + grpc_error* error_ignored) { GPR_TIMER_BEGIN("write_action_begin_locked", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; GPR_ASSERT(t->write_state != GRPC_CHTTP2_WRITE_STATE_IDLE); grpc_chttp2_begin_write_result r; if (t->closed_with_error != GRPC_ERROR_NONE) { @@ -1019,18 +1019,20 @@ static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *gt, if (!t->is_first_write_in_batch) { GRPC_STATS_INC_HTTP2_WRITES_CONTINUED(exec_ctx); } - grpc_closure_scheduler *scheduler = + grpc_closure_scheduler* scheduler = write_scheduler(t, r.early_results_scheduled, r.partial); if (scheduler != grpc_schedule_on_exec_ctx) { GRPC_STATS_INC_HTTP2_WRITES_OFFLOADED(exec_ctx); } set_write_state( - exec_ctx, t, r.partial ? GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE - : GRPC_CHTTP2_WRITE_STATE_WRITING, + exec_ctx, t, + r.partial ? GRPC_CHTTP2_WRITE_STATE_WRITING_WITH_MORE + : GRPC_CHTTP2_WRITE_STATE_WRITING, begin_writing_desc(r.partial, scheduler == grpc_schedule_on_exec_ctx)); - GRPC_CLOSURE_SCHED(exec_ctx, GRPC_CLOSURE_INIT(&t->write_action, - write_action, t, scheduler), - GRPC_ERROR_NONE); + GRPC_CLOSURE_SCHED( + exec_ctx, + GRPC_CLOSURE_INIT(&t->write_action, write_action, t, scheduler), + GRPC_ERROR_NONE); } else { GRPC_STATS_INC_HTTP2_SPURIOUS_WRITES_BEGUN(exec_ctx); set_write_state(exec_ctx, t, GRPC_CHTTP2_WRITE_STATE_IDLE, @@ -1040,8 +1042,8 @@ static void write_action_begin_locked(grpc_exec_ctx *exec_ctx, void *gt, GPR_TIMER_END("write_action_begin_locked", 0); } -static void write_action(grpc_exec_ctx *exec_ctx, void *gt, grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; +static void write_action(grpc_exec_ctx* exec_ctx, void* gt, grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; GPR_TIMER_BEGIN("write_action", 0); grpc_endpoint_write( exec_ctx, t->ep, &t->outbuf, @@ -1050,10 +1052,10 @@ static void write_action(grpc_exec_ctx *exec_ctx, void *gt, grpc_error *error) { GPR_TIMER_END("write_action", 0); } -static void write_action_end_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { +static void write_action_end_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { GPR_TIMER_BEGIN("terminate_writing_with_lock", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; if (error != GRPC_ERROR_NONE) { close_transport_locked(exec_ctx, t, GRPC_ERROR_REF(error)); @@ -1098,10 +1100,10 @@ static void write_action_end_locked(grpc_exec_ctx *exec_ctx, void *tp, // Dirties an HTTP2 setting to be sent out next time a writing path occurs. // If the change needs to occur immediately, manually initiate a write. -static void queue_setting_update(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static void queue_setting_update(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_setting_id id, uint32_t value) { - const grpc_chttp2_setting_parameters *sp = + const grpc_chttp2_setting_parameters* sp = &grpc_chttp2_settings_parameters[id]; uint32_t use_value = GPR_CLAMP(value, sp->min_value, sp->max_value); if (use_value != value) { @@ -1114,13 +1116,22 @@ static void queue_setting_update(grpc_exec_ctx *exec_ctx, } } -void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, uint32_t goaway_error, grpc_slice goaway_text) { // GRPC_CHTTP2_IF_TRACING( // gpr_log(GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg)); - t->seen_goaway = 1; + + // Discard the error from a previous goaway frame (if any) + if (t->goaway_error != GRPC_ERROR_NONE) { + GRPC_ERROR_UNREF(t->goaway_error); + } + t->goaway_error = grpc_error_set_str( + grpc_error_set_int( + GRPC_ERROR_CREATE_FROM_STATIC_STRING("GOAWAY received"), + GRPC_ERROR_INT_HTTP2_ERROR, (intptr_t)goaway_error), + GRPC_ERROR_STR_RAW_BYTES, goaway_text); /* When a client receives a GOAWAY with error code ENHANCE_YOUR_CALM and debug * data equal to "too_many_pings", it should log the occurrence at a log level @@ -1141,19 +1152,13 @@ void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx, /* lie: use transient failure from the transport to indicate goaway has been * received */ - connectivity_state_set( - exec_ctx, t, GRPC_CHANNEL_TRANSIENT_FAILURE, - grpc_error_set_str( - grpc_error_set_int( - GRPC_ERROR_CREATE_FROM_STATIC_STRING("GOAWAY received"), - GRPC_ERROR_INT_HTTP2_ERROR, (intptr_t)goaway_error), - GRPC_ERROR_STR_RAW_BYTES, goaway_text), - "got_goaway"); + connectivity_state_set(exec_ctx, t, GRPC_CHANNEL_TRANSIENT_FAILURE, + GRPC_ERROR_REF(t->goaway_error), "got_goaway"); } -static void maybe_start_some_streams(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_chttp2_stream *s; +static void maybe_start_some_streams(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_chttp2_stream* s; /* start streams where we have free grpc_chttp2_stream ids and free * concurrency */ while (t->next_stream_id <= MAX_CLIENT_STREAM_ID && @@ -1204,32 +1209,32 @@ static void maybe_start_some_streams(grpc_exec_ctx *exec_ctx, bits being used for flags defined above) */ #define CLOSURE_BARRIER_FIRST_REF_BIT (1 << 16) -static grpc_closure *add_closure_barrier(grpc_closure *closure) { +static grpc_closure* add_closure_barrier(grpc_closure* closure) { closure->next_data.scratch += CLOSURE_BARRIER_FIRST_REF_BIT; return closure; } -static void null_then_run_closure(grpc_exec_ctx *exec_ctx, - grpc_closure **closure, grpc_error *error) { - grpc_closure *c = *closure; - *closure = NULL; +static void null_then_run_closure(grpc_exec_ctx* exec_ctx, + grpc_closure** closure, grpc_error* error) { + grpc_closure* c = *closure; + *closure = nullptr; GRPC_CLOSURE_RUN(exec_ctx, c, error); } -void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, - grpc_closure **pclosure, - grpc_error *error, const char *desc) { - grpc_closure *closure = *pclosure; - *pclosure = NULL; - if (closure == NULL) { +void grpc_chttp2_complete_closure_step(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, + grpc_closure** pclosure, + grpc_error* error, const char* desc) { + grpc_closure* closure = *pclosure; + *pclosure = nullptr; + if (closure == nullptr) { GRPC_ERROR_UNREF(error); return; } closure->next_data.scratch -= CLOSURE_BARRIER_FIRST_REF_BIT; - if (GRPC_TRACER_ON(grpc_http_trace)) { - const char *errstr = grpc_error_string(error); + if (grpc_http_trace.enabled()) { + const char* errstr = grpc_error_string(error); gpr_log( GPR_DEBUG, "complete_closure_step: t=%p %p refs=%d flags=0x%04x desc=%s err=%s " @@ -1253,7 +1258,7 @@ void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, if (closure->next_data.scratch < CLOSURE_BARRIER_FIRST_REF_BIT) { if (closure->next_data.scratch & CLOSURE_BARRIER_STATS_BIT) { grpc_transport_move_stats(&s->stats, s->collecting_stats); - s->collecting_stats = NULL; + s->collecting_stats = nullptr; } if ((t->write_state == GRPC_CHTTP2_WRITE_STATE_IDLE) || !(closure->next_data.scratch & CLOSURE_BARRIER_MAY_COVER_WRITE)) { @@ -1265,17 +1270,17 @@ void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, } } -static bool contains_non_ok_status(grpc_metadata_batch *batch) { - if (batch->idx.named.grpc_status != NULL) { +static bool contains_non_ok_status(grpc_metadata_batch* batch) { + if (batch->idx.named.grpc_status != nullptr) { return !grpc_mdelem_eq(batch->idx.named.grpc_status->md, GRPC_MDELEM_GRPC_STATUS_0); } return false; } -static void maybe_become_writable_due_to_send_msg(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +static void maybe_become_writable_due_to_send_msg(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { if (s->id != 0 && (!s->write_buffering || s->flow_controlled_buffer.length > t->write_buffer_size)) { grpc_chttp2_mark_stream_writable(exec_ctx, t, s); @@ -1284,20 +1289,20 @@ static void maybe_become_writable_due_to_send_msg(grpc_exec_ctx *exec_ctx, } } -static void add_fetched_slice_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +static void add_fetched_slice_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { s->fetched_send_message_length += (uint32_t)GRPC_SLICE_LENGTH(s->fetching_slice); grpc_slice_buffer_add(&s->flow_controlled_buffer, s->fetching_slice); maybe_become_writable_due_to_send_msg(exec_ctx, t, s); } -static void continue_fetching_send_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +static void continue_fetching_send_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { for (;;) { - if (s->fetching_send_message == NULL) { + if (s->fetching_send_message == nullptr) { /* Stream was cancelled before message fetch completed */ abort(); /* TODO(ctiller): what cleanup here? */ return; /* early out */ @@ -1310,27 +1315,27 @@ static void continue_fetching_send_locked(grpc_exec_ctx *exec_ctx, exec_ctx, t, s, &s->fetching_send_message_finished, GRPC_ERROR_NONE, "fetching_send_message_finished"); } else { - grpc_chttp2_write_cb *cb = t->write_cb_pool; - if (cb == NULL) { - cb = (grpc_chttp2_write_cb *)gpr_malloc(sizeof(*cb)); + grpc_chttp2_write_cb* cb = t->write_cb_pool; + if (cb == nullptr) { + cb = (grpc_chttp2_write_cb*)gpr_malloc(sizeof(*cb)); } else { t->write_cb_pool = cb->next; } cb->call_at_byte = notify_offset; cb->closure = s->fetching_send_message_finished; - s->fetching_send_message_finished = NULL; - grpc_chttp2_write_cb **list = + s->fetching_send_message_finished = nullptr; + grpc_chttp2_write_cb** list = s->fetching_send_message->flags & GRPC_WRITE_THROUGH ? &s->on_write_finished_cbs : &s->on_flow_controlled_cbs; cb->next = *list; *list = cb; } - s->fetching_send_message = NULL; + s->fetching_send_message = nullptr; return; /* early out */ } else if (grpc_byte_stream_next(exec_ctx, s->fetching_send_message, UINT32_MAX, &s->complete_fetch_locked)) { - grpc_error *error = grpc_byte_stream_pull( + grpc_error* error = grpc_byte_stream_pull( exec_ctx, s->fetching_send_message, &s->fetching_slice); if (error != GRPC_ERROR_NONE) { grpc_byte_stream_destroy(exec_ctx, s->fetching_send_message); @@ -1342,10 +1347,10 @@ static void continue_fetching_send_locked(grpc_exec_ctx *exec_ctx, } } -static void complete_fetch_locked(grpc_exec_ctx *exec_ctx, void *gs, - grpc_error *error) { - grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; - grpc_chttp2_transport *t = s->t; +static void complete_fetch_locked(grpc_exec_ctx* exec_ctx, void* gs, + grpc_error* error) { + grpc_chttp2_stream* s = (grpc_chttp2_stream*)gs; + grpc_chttp2_transport* t = s->t; if (error == GRPC_ERROR_NONE) { error = grpc_byte_stream_pull(exec_ctx, s->fetching_send_message, &s->fetching_slice); @@ -1360,14 +1365,14 @@ static void complete_fetch_locked(grpc_exec_ctx *exec_ctx, void *gs, } } -static void do_nothing(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {} +static void do_nothing(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {} -static void log_metadata(const grpc_metadata_batch *md_batch, uint32_t id, +static void log_metadata(const grpc_metadata_batch* md_batch, uint32_t id, bool is_client, bool is_initial) { - for (grpc_linked_mdelem *md = md_batch->list.head; md != NULL; + for (grpc_linked_mdelem* md = md_batch->list.head; md != nullptr; md = md->next) { - char *key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); - char *value = grpc_slice_to_c_string(GRPC_MDVALUE(md->md)); + char* key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); + char* value = grpc_slice_to_c_string(GRPC_MDVALUE(md->md)); gpr_log(GPR_INFO, "HTTP:%d:%s:%s: %s: %s", id, is_initial ? "HDR" : "TRL", is_client ? "CLI" : "SVR", key, value); gpr_free(key); @@ -1375,20 +1380,20 @@ static void log_metadata(const grpc_metadata_batch *md_batch, uint32_t id, } } -static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, - grpc_error *error_ignored) { +static void perform_stream_op_locked(grpc_exec_ctx* exec_ctx, void* stream_op, + grpc_error* error_ignored) { GPR_TIMER_BEGIN("perform_stream_op_locked", 0); - grpc_transport_stream_op_batch *op = - (grpc_transport_stream_op_batch *)stream_op; - grpc_chttp2_stream *s = (grpc_chttp2_stream *)op->handler_private.extra_arg; - grpc_transport_stream_op_batch_payload *op_payload = op->payload; - grpc_chttp2_transport *t = s->t; + grpc_transport_stream_op_batch* op = + (grpc_transport_stream_op_batch*)stream_op; + grpc_chttp2_stream* s = (grpc_chttp2_stream*)op->handler_private.extra_arg; + grpc_transport_stream_op_batch_payload* op_payload = op->payload; + grpc_chttp2_transport* t = s->t; GRPC_STATS_INC_HTTP2_OP_BATCHES(exec_ctx); - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *str = grpc_transport_stream_op_batch_string(op); + if (grpc_http_trace.enabled()) { + char* str = grpc_transport_stream_op_batch_string(op); gpr_log(GPR_DEBUG, "perform_stream_op_locked: %s; on_complete = %p", str, op->on_complete); gpr_free(str); @@ -1402,10 +1407,10 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, } } - grpc_closure *on_complete = op->on_complete; - if (on_complete == NULL) { + grpc_closure* on_complete = op->on_complete; + if (on_complete == nullptr) { on_complete = - GRPC_CLOSURE_CREATE(do_nothing, NULL, grpc_schedule_on_exec_ctx); + GRPC_CLOSURE_CREATE(do_nothing, nullptr, grpc_schedule_on_exec_ctx); } /* use final_data as a barrier until enqueue time; the inital counter is @@ -1414,7 +1419,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, on_complete->error_data.error = GRPC_ERROR_NONE; if (op->collect_stats) { - GPR_ASSERT(s->collecting_stats == NULL); + GPR_ASSERT(s->collecting_stats == nullptr); s->collecting_stats = op_payload->collect_stats.collect_stats; on_complete->next_data.scratch |= CLOSURE_BARRIER_STATS_BIT; } @@ -1427,12 +1432,12 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, if (op->send_initial_metadata) { GRPC_STATS_INC_HTTP2_OP_SEND_INITIAL_METADATA(exec_ctx); - GPR_ASSERT(s->send_initial_metadata_finished == NULL); + GPR_ASSERT(s->send_initial_metadata_finished == nullptr); on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE; /* Identify stream compression */ if (op_payload->send_initial_metadata.send_initial_metadata->idx.named - .content_encoding == NULL || + .content_encoding == nullptr || grpc_stream_compression_method_parse( GRPC_MDVALUE( op_payload->send_initial_metadata.send_initial_metadata->idx @@ -1493,7 +1498,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, } } } else { - s->send_initial_metadata = NULL; + s->send_initial_metadata = nullptr; grpc_chttp2_complete_closure_step( exec_ctx, t, s, &s->send_initial_metadata_finished, GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( @@ -1502,7 +1507,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, "send_initial_metadata_finished"); } } - if (op_payload->send_initial_metadata.peer_string != NULL) { + if (op_payload->send_initial_metadata.peer_string != nullptr) { gpr_atm_rel_store(op_payload->send_initial_metadata.peer_string, (gpr_atm)gpr_strdup(t->peer_string)); } @@ -1529,8 +1534,8 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, &s->write_closed_error, 1), "fetching_send_message_finished"); } else { - GPR_ASSERT(s->fetching_send_message == NULL); - uint8_t *frame_hdr = grpc_slice_buffer_tiny_add( + GPR_ASSERT(s->fetching_send_message == nullptr); + uint8_t* frame_hdr = grpc_slice_buffer_tiny_add( &s->flow_controlled_buffer, GRPC_HEADER_SIZE_IN_BYTES); uint32_t flags = op_payload->send_message.send_message->flags; frame_hdr[0] = (flags & GRPC_WRITE_INTERNAL_COMPRESS) != 0; @@ -1557,7 +1562,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, if (op->send_trailing_metadata) { GRPC_STATS_INC_HTTP2_OP_SEND_TRAILING_METADATA(exec_ctx); - GPR_ASSERT(s->send_trailing_metadata_finished == NULL); + GPR_ASSERT(s->send_trailing_metadata_finished == nullptr); on_complete->next_data.scratch |= CLOSURE_BARRIER_MAY_COVER_WRITE; s->send_trailing_metadata_finished = add_closure_barrier(on_complete); s->send_trailing_metadata = @@ -1585,7 +1590,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, s->seen_error = true; } if (s->write_closed) { - s->send_trailing_metadata = NULL; + s->send_trailing_metadata = nullptr; grpc_chttp2_complete_closure_step( exec_ctx, t, s, &s->send_trailing_metadata_finished, grpc_metadata_batch_is_empty( @@ -1607,14 +1612,14 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, if (op->recv_initial_metadata) { GRPC_STATS_INC_HTTP2_OP_RECV_INITIAL_METADATA(exec_ctx); - GPR_ASSERT(s->recv_initial_metadata_ready == NULL); + GPR_ASSERT(s->recv_initial_metadata_ready == nullptr); s->recv_initial_metadata_ready = op_payload->recv_initial_metadata.recv_initial_metadata_ready; s->recv_initial_metadata = op_payload->recv_initial_metadata.recv_initial_metadata; s->trailing_metadata_available = op_payload->recv_initial_metadata.trailing_metadata_available; - if (op_payload->recv_initial_metadata.peer_string != NULL) { + if (op_payload->recv_initial_metadata.peer_string != nullptr) { gpr_atm_rel_store(op_payload->recv_initial_metadata.peer_string, (gpr_atm)gpr_strdup(t->peer_string)); } @@ -1624,7 +1629,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, if (op->recv_message) { GRPC_STATS_INC_HTTP2_OP_RECV_MESSAGE(exec_ctx); size_t already_received; - GPR_ASSERT(s->recv_message_ready == NULL); + GPR_ASSERT(s->recv_message_ready == nullptr); GPR_ASSERT(!s->pending_byte_stream); s->recv_message_ready = op_payload->recv_message.recv_message_ready; s->recv_message = op_payload->recv_message.recv_message; @@ -1642,7 +1647,7 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, if (op->recv_trailing_metadata) { GRPC_STATS_INC_HTTP2_OP_RECV_TRAILING_METADATA(exec_ctx); - GPR_ASSERT(s->recv_trailing_metadata_finished == NULL); + GPR_ASSERT(s->recv_trailing_metadata_finished == nullptr); s->recv_trailing_metadata_finished = add_closure_barrier(on_complete); s->recv_trailing_metadata = op_payload->recv_trailing_metadata.recv_trailing_metadata; @@ -1657,12 +1662,12 @@ static void perform_stream_op_locked(grpc_exec_ctx *exec_ctx, void *stream_op, GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "perform_stream_op"); } -static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_transport_stream_op_batch *op) { +static void perform_stream_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_transport_stream_op_batch* op) { GPR_TIMER_BEGIN("perform_stream_op", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; - grpc_chttp2_stream *s = (grpc_chttp2_stream *)gs; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; + grpc_chttp2_stream* s = (grpc_chttp2_stream*)gs; if (!t->is_client) { if (op->send_initial_metadata) { @@ -1677,8 +1682,8 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, } } - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *str = grpc_transport_stream_op_batch_string(op); + if (grpc_http_trace.enabled()) { + char* str = grpc_transport_stream_op_batch_string(op); gpr_log(GPR_DEBUG, "perform_stream_op[s=%p]: %s", s, str); gpr_free(str); } @@ -1693,11 +1698,11 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, GPR_TIMER_END("perform_stream_op", 0); } -static void cancel_pings(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error) { +static void cancel_pings(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error) { /* callback remaining pings: they're not allowed to call into the transpot, and maybe they hold resources that need to be freed */ - grpc_chttp2_ping_queue *pq = &t->ping_queue; + grpc_chttp2_ping_queue* pq = &t->ping_queue; GPR_ASSERT(error != GRPC_ERROR_NONE); for (size_t j = 0; j < GRPC_CHTTP2_PCL_COUNT; j++) { grpc_closure_list_fail_all(&pq->lists[j], GRPC_ERROR_REF(error)); @@ -1706,24 +1711,24 @@ static void cancel_pings(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, GRPC_ERROR_UNREF(error); } -static void send_ping_locked(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_closure *on_initiate, grpc_closure *on_ack) { +static void send_ping_locked(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_closure* on_initiate, grpc_closure* on_ack) { if (t->closed_with_error != GRPC_ERROR_NONE) { GRPC_CLOSURE_SCHED(exec_ctx, on_initiate, GRPC_ERROR_REF(t->closed_with_error)); GRPC_CLOSURE_SCHED(exec_ctx, on_ack, GRPC_ERROR_REF(t->closed_with_error)); return; } - grpc_chttp2_ping_queue *pq = &t->ping_queue; + grpc_chttp2_ping_queue* pq = &t->ping_queue; grpc_closure_list_append(&pq->lists[GRPC_CHTTP2_PCL_INITIATE], on_initiate, GRPC_ERROR_NONE); grpc_closure_list_append(&pq->lists[GRPC_CHTTP2_PCL_NEXT], on_ack, GRPC_ERROR_NONE); } -static void retry_initiate_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; +static void retry_initiate_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; t->ping_state.is_delayed_ping_timer_set = false; if (error == GRPC_ERROR_NONE) { grpc_chttp2_initiate_write(exec_ctx, t, @@ -1731,11 +1736,11 @@ static void retry_initiate_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, } } -void grpc_chttp2_ack_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, +void grpc_chttp2_ack_ping(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, uint64_t id) { - grpc_chttp2_ping_queue *pq = &t->ping_queue; + grpc_chttp2_ping_queue* pq = &t->ping_queue; if (pq->inflight_id != id) { - char *from = grpc_endpoint_get_peer(t->ep); + char* from = grpc_endpoint_get_peer(t->ep); gpr_log(GPR_DEBUG, "Unknown ping response from %s: %" PRIx64, from, id); gpr_free(from); return; @@ -1747,13 +1752,13 @@ void grpc_chttp2_ack_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, } } -static void send_goaway(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error) { +static void send_goaway(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error) { t->sent_goaway_state = GRPC_CHTTP2_GOAWAY_SEND_SCHEDULED; grpc_http2_error_code http_error; grpc_slice slice; - grpc_error_get_status(exec_ctx, error, GRPC_MILLIS_INF_FUTURE, NULL, &slice, - &http_error); + grpc_error_get_status(exec_ctx, error, GRPC_MILLIS_INF_FUTURE, nullptr, + &slice, &http_error, nullptr); grpc_chttp2_goaway_append(t->last_new_stream_id, (uint32_t)http_error, grpc_slice_ref_internal(slice), &t->qbuf); grpc_chttp2_initiate_write(exec_ctx, t, @@ -1761,8 +1766,8 @@ static void send_goaway(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, GRPC_ERROR_UNREF(error); } -void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +void grpc_chttp2_add_ping_strike(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { t->ping_recv_state.ping_strikes++; if (++t->ping_recv_state.ping_strikes > t->ping_policy.max_ping_strikes && t->ping_policy.max_ping_strikes != 0) { @@ -1772,19 +1777,20 @@ void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx, GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM)); /*The transport will be closed after the write is done */ close_transport_locked( - exec_ctx, t, grpc_error_set_int( - GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many pings"), - GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE)); + exec_ctx, t, + grpc_error_set_int( + GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many pings"), + GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE)); } } -static void perform_transport_op_locked(grpc_exec_ctx *exec_ctx, - void *stream_op, - grpc_error *error_ignored) { - grpc_transport_op *op = (grpc_transport_op *)stream_op; - grpc_chttp2_transport *t = - (grpc_chttp2_transport *)op->handler_private.extra_arg; - grpc_error *close_transport = op->disconnect_with_error; +static void perform_transport_op_locked(grpc_exec_ctx* exec_ctx, + void* stream_op, + grpc_error* error_ignored) { + grpc_transport_op* op = (grpc_transport_op*)stream_op; + grpc_chttp2_transport* t = + (grpc_chttp2_transport*)op->handler_private.extra_arg; + grpc_error* close_transport = op->disconnect_with_error; if (op->goaway_error) { send_goaway(exec_ctx, t, op->goaway_error); @@ -1805,12 +1811,12 @@ static void perform_transport_op_locked(grpc_exec_ctx *exec_ctx, } if (op->send_ping) { - send_ping_locked(exec_ctx, t, NULL, op->send_ping); + send_ping_locked(exec_ctx, t, nullptr, op->send_ping); grpc_chttp2_initiate_write(exec_ctx, t, GRPC_CHTTP2_INITIATE_WRITE_APPLICATION_PING); } - if (op->on_connectivity_state_change != NULL) { + if (op->on_connectivity_state_change != nullptr) { grpc_connectivity_state_notify_on_state_change( exec_ctx, &t->channel_callback.state_tracker, op->connectivity_state, op->on_connectivity_state_change); @@ -1825,10 +1831,10 @@ static void perform_transport_op_locked(grpc_exec_ctx *exec_ctx, GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "transport_op"); } -static void perform_transport_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_transport_op *op) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; - char *msg = grpc_transport_op_string(op); +static void perform_transport_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_transport_op* op) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; + char* msg = grpc_transport_op_string(op); gpr_free(msg); op->handler_private.extra_arg = gt; GRPC_CHTTP2_REF_TRANSPORT(t, "transport_op"); @@ -1843,10 +1849,10 @@ static void perform_transport_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, * INPUT PROCESSING - GENERAL */ -void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { - if (s->recv_initial_metadata_ready != NULL && +void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { + if (s->recv_initial_metadata_ready != nullptr && s->published_metadata[0] != GRPC_METADATA_NOT_PUBLISHED) { if (s->seen_error) { grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); @@ -1862,12 +1868,12 @@ void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx *exec_ctx, } } -void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { - grpc_error *error = GRPC_ERROR_NONE; - if (s->recv_message_ready != NULL) { - *s->recv_message = NULL; +void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { + grpc_error* error = GRPC_ERROR_NONE; + if (s->recv_message_ready != nullptr) { + *s->recv_message = nullptr; if (s->final_metadata_requested && s->seen_error) { grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); if (!s->pending_byte_stream) { @@ -1896,7 +1902,7 @@ void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, if (!grpc_stream_decompress( s->stream_decompression_ctx, &s->unprocessed_incoming_frames_buffer, - &s->decompressed_data_buffer, NULL, + &s->decompressed_data_buffer, nullptr, GRPC_HEADER_SIZE_IN_BYTES - s->decompressed_header_bytes, &end_of_context)) { grpc_slice_buffer_reset_and_unref_internal(exec_ctx, @@ -1912,17 +1918,17 @@ void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, } error = grpc_deframe_unprocessed_incoming_frames( exec_ctx, &s->data_parser, s, &s->decompressed_data_buffer, - NULL, s->recv_message); + nullptr, s->recv_message); if (end_of_context) { grpc_stream_compression_context_destroy( s->stream_decompression_ctx); - s->stream_decompression_ctx = NULL; + s->stream_decompression_ctx = nullptr; } } } else { error = grpc_deframe_unprocessed_incoming_frames( exec_ctx, &s->data_parser, s, - &s->unprocessed_incoming_frames_buffer, NULL, s->recv_message); + &s->unprocessed_incoming_frames_buffer, nullptr, s->recv_message); } if (error != GRPC_ERROR_NONE) { s->seen_error = true; @@ -1931,26 +1937,26 @@ void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, grpc_slice_buffer_reset_and_unref_internal( exec_ctx, &s->unprocessed_incoming_frames_buffer); break; - } else if (*s->recv_message != NULL) { + } else if (*s->recv_message != nullptr) { break; } } } - if (error == GRPC_ERROR_NONE && *s->recv_message != NULL) { + if (error == GRPC_ERROR_NONE && *s->recv_message != nullptr) { null_then_run_closure(exec_ctx, &s->recv_message_ready, GRPC_ERROR_NONE); } else if (s->published_metadata[1] != GRPC_METADATA_NOT_PUBLISHED) { - *s->recv_message = NULL; + *s->recv_message = nullptr; null_then_run_closure(exec_ctx, &s->recv_message_ready, GRPC_ERROR_NONE); } GRPC_ERROR_UNREF(error); } } -void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); - if (s->recv_trailing_metadata_finished != NULL && s->read_closed && + if (s->recv_trailing_metadata_finished != nullptr && s->read_closed && s->write_closed) { if (s->seen_error) { grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); @@ -1962,7 +1968,7 @@ void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, bool pending_data = s->pending_byte_stream || s->unprocessed_incoming_frames_buffer.length > 0; if (s->read_closed && s->frame_storage.length > 0 && !pending_data && - !s->seen_error && s->recv_trailing_metadata_finished != NULL) { + !s->seen_error && s->recv_trailing_metadata_finished != nullptr) { /* Maybe some SYNC_FLUSH data is left in frame_storage. Consume them and * maybe decompress the next 5 bytes in the stream. */ bool end_of_context; @@ -1970,10 +1976,10 @@ void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, s->stream_decompression_ctx = grpc_stream_compression_context_create( s->stream_decompression_method); } - if (!grpc_stream_decompress(s->stream_decompression_ctx, - &s->frame_storage, - &s->unprocessed_incoming_frames_buffer, NULL, - GRPC_HEADER_SIZE_IN_BYTES, &end_of_context)) { + if (!grpc_stream_decompress( + s->stream_decompression_ctx, &s->frame_storage, + &s->unprocessed_incoming_frames_buffer, nullptr, + GRPC_HEADER_SIZE_IN_BYTES, &end_of_context)) { grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &s->frame_storage); grpc_slice_buffer_reset_and_unref_internal( exec_ctx, &s->unprocessed_incoming_frames_buffer); @@ -1985,12 +1991,12 @@ void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, } if (end_of_context) { grpc_stream_compression_context_destroy(s->stream_decompression_ctx); - s->stream_decompression_ctx = NULL; + s->stream_decompression_ctx = nullptr; } } } if (s->read_closed && s->frame_storage.length == 0 && !pending_data && - s->recv_trailing_metadata_finished != NULL) { + s->recv_trailing_metadata_finished != nullptr) { grpc_chttp2_incoming_metadata_buffer_publish( exec_ctx, &s->metadata_buffer[1], s->recv_trailing_metadata); grpc_chttp2_complete_closure_step( @@ -2000,24 +2006,24 @@ void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, } } -static void remove_stream(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - uint32_t id, grpc_error *error) { - grpc_chttp2_stream *s = - (grpc_chttp2_stream *)grpc_chttp2_stream_map_delete(&t->stream_map, id); +static void remove_stream(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + uint32_t id, grpc_error* error) { + grpc_chttp2_stream* s = + (grpc_chttp2_stream*)grpc_chttp2_stream_map_delete(&t->stream_map, id); GPR_ASSERT(s); if (t->incoming_stream == s) { - t->incoming_stream = NULL; + t->incoming_stream = nullptr; grpc_chttp2_parsing_become_skip_parser(exec_ctx, t); } if (s->pending_byte_stream) { - if (s->on_next != NULL) { - grpc_chttp2_incoming_byte_stream *bs = s->data_parser.parsing_frame; + if (s->on_next != nullptr) { + grpc_chttp2_incoming_byte_stream* bs = s->data_parser.parsing_frame; if (error == GRPC_ERROR_NONE) { error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); } incoming_byte_stream_publish_error(exec_ctx, bs, error); incoming_byte_stream_unref(exec_ctx, bs); - s->data_parser.parsing_frame = NULL; + s->data_parser.parsing_frame = nullptr; } else { GRPC_ERROR_UNREF(s->byte_stream_error); s->byte_stream_error = GRPC_ERROR_REF(error); @@ -2042,9 +2048,9 @@ static void remove_stream(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, maybe_start_some_streams(exec_ctx, t); } -void grpc_chttp2_cancel_stream(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, grpc_chttp2_stream *s, - grpc_error *due_to_error) { +void grpc_chttp2_cancel_stream(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_stream* s, + grpc_error* due_to_error) { if (!t->is_client && !s->sent_trailing_metadata && grpc_error_has_clear_grpc_status(due_to_error)) { close_from_api(exec_ctx, t, s, due_to_error); @@ -2054,8 +2060,8 @@ void grpc_chttp2_cancel_stream(grpc_exec_ctx *exec_ctx, if (!s->read_closed || !s->write_closed) { if (s->id != 0) { grpc_http2_error_code http_error; - grpc_error_get_status(exec_ctx, due_to_error, s->deadline, NULL, NULL, - &http_error); + grpc_error_get_status(exec_ctx, due_to_error, s->deadline, nullptr, + nullptr, &http_error, nullptr); grpc_slice_buffer_add( &t->qbuf, grpc_chttp2_rst_stream_create(s->id, (uint32_t)http_error, &s->stats.outgoing)); @@ -2069,12 +2075,12 @@ void grpc_chttp2_cancel_stream(grpc_exec_ctx *exec_ctx, grpc_chttp2_mark_stream_closed(exec_ctx, t, s, 1, 1, due_to_error); } -void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_error *error) { +void grpc_chttp2_fake_status(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_error* error) { grpc_status_code status; grpc_slice slice; - grpc_error_get_status(exec_ctx, error, s->deadline, &status, &slice, NULL); - + grpc_error_get_status(exec_ctx, error, s->deadline, &status, &slice, nullptr, + nullptr); if (status != GRPC_STATUS_OK) { s->seen_error = true; } @@ -2085,7 +2091,7 @@ void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, what we want - which is safe because we haven't told anyone about the metadata yet */ if (s->published_metadata[1] == GRPC_METADATA_NOT_PUBLISHED || - s->recv_trailing_metadata_finished != NULL) { + s->recv_trailing_metadata_finished != nullptr) { char status_string[GPR_LTOA_MIN_BUFSIZE]; gpr_ltoa(status, status_string); GRPC_LOG_IF_ERROR("add_status", @@ -2109,7 +2115,7 @@ void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, GRPC_ERROR_UNREF(error); } -static void add_error(grpc_error *error, grpc_error **refs, size_t *nrefs) { +static void add_error(grpc_error* error, grpc_error** refs, size_t* nrefs) { if (error == GRPC_ERROR_NONE) return; for (size_t i = 0; i < *nrefs; i++) { if (error == refs[i]) { @@ -2120,14 +2126,14 @@ static void add_error(grpc_error *error, grpc_error **refs, size_t *nrefs) { ++*nrefs; } -static grpc_error *removal_error(grpc_error *extra_error, grpc_chttp2_stream *s, - const char *master_error_msg) { - grpc_error *refs[3]; +static grpc_error* removal_error(grpc_error* extra_error, grpc_chttp2_stream* s, + const char* master_error_msg) { + grpc_error* refs[3]; size_t nrefs = 0; add_error(s->read_closed_error, refs, &nrefs); add_error(s->write_closed_error, refs, &nrefs); add_error(extra_error, refs, &nrefs); - grpc_error *error = GRPC_ERROR_NONE; + grpc_error* error = GRPC_ERROR_NONE; if (nrefs > 0) { error = GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING(master_error_msg, refs, nrefs); @@ -2136,11 +2142,11 @@ static grpc_error *removal_error(grpc_error *extra_error, grpc_chttp2_stream *s, return error; } -static void flush_write_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_chttp2_write_cb **list, - grpc_error *error) { +static void flush_write_list(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_chttp2_write_cb** list, + grpc_error* error) { while (*list) { - grpc_chttp2_write_cb *cb = *list; + grpc_chttp2_write_cb* cb = *list; *list = cb->next; grpc_chttp2_complete_closure_step(exec_ctx, t, s, &cb->closure, GRPC_ERROR_REF(error), @@ -2151,22 +2157,22 @@ static void flush_write_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, GRPC_ERROR_UNREF(error); } -void grpc_chttp2_fail_pending_writes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_error *error) { +void grpc_chttp2_fail_pending_writes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_error* error) { error = removal_error(error, s, "Pending writes failed due to stream closure"); - s->send_initial_metadata = NULL; + s->send_initial_metadata = nullptr; grpc_chttp2_complete_closure_step( exec_ctx, t, s, &s->send_initial_metadata_finished, GRPC_ERROR_REF(error), "send_initial_metadata_finished"); - s->send_trailing_metadata = NULL; + s->send_trailing_metadata = nullptr; grpc_chttp2_complete_closure_step( exec_ctx, t, s, &s->send_trailing_metadata_finished, GRPC_ERROR_REF(error), "send_trailing_metadata_finished"); - s->fetching_send_message = NULL; + s->fetching_send_message = nullptr; grpc_chttp2_complete_closure_step( exec_ctx, t, s, &s->fetching_send_message_finished, GRPC_ERROR_REF(error), "fetching_send_message_finished"); @@ -2175,10 +2181,10 @@ void grpc_chttp2_fail_pending_writes(grpc_exec_ctx *exec_ctx, flush_write_list(exec_ctx, t, s, &s->on_flow_controlled_cbs, error); } -void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, int close_reads, - int close_writes, grpc_error *error) { +void grpc_chttp2_mark_stream_closed(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, int close_reads, + int close_writes, grpc_error* error) { if (s->read_closed && s->write_closed) { /* already closed */ grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); @@ -2199,7 +2205,7 @@ void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx, } if (s->read_closed && s->write_closed) { became_closed = true; - grpc_error *overall_error = + grpc_error* overall_error = removal_error(GRPC_ERROR_REF(error), s, "Stream removed"); if (s->id != 0) { remove_stream(exec_ctx, t, s->id, GRPC_ERROR_REF(overall_error)); @@ -2227,19 +2233,19 @@ void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx, GRPC_ERROR_UNREF(error); } -static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_error *error) { +static void close_from_api(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_error* error) { grpc_slice hdr; grpc_slice status_hdr; grpc_slice http_status_hdr; grpc_slice content_type_hdr; grpc_slice message_pfx; - uint8_t *p; + uint8_t* p; uint32_t len = 0; grpc_status_code grpc_status; grpc_slice slice; grpc_error_get_status(exec_ctx, error, s->deadline, &grpc_status, &slice, - NULL); + nullptr, nullptr); GPR_ASSERT(grpc_status >= 0 && (int)grpc_status < 100); @@ -2387,20 +2393,20 @@ static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, } typedef struct { - grpc_exec_ctx *exec_ctx; - grpc_error *error; - grpc_chttp2_transport *t; + grpc_exec_ctx* exec_ctx; + grpc_error* error; + grpc_chttp2_transport* t; } cancel_stream_cb_args; -static void cancel_stream_cb(void *user_data, uint32_t key, void *stream) { - cancel_stream_cb_args *args = (cancel_stream_cb_args *)user_data; - grpc_chttp2_stream *s = (grpc_chttp2_stream *)stream; +static void cancel_stream_cb(void* user_data, uint32_t key, void* stream) { + cancel_stream_cb_args* args = (cancel_stream_cb_args*)user_data; + grpc_chttp2_stream* s = (grpc_chttp2_stream*)stream; grpc_chttp2_cancel_stream(args->exec_ctx, args->t, s, GRPC_ERROR_REF(args->error)); } -static void end_all_the_calls(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error) { +static void end_all_the_calls(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error) { cancel_stream_cb_args args = {exec_ctx, error, t}; grpc_chttp2_stream_map_for_each(&t->stream_map, cancel_stream_cb, &args); GRPC_ERROR_UNREF(error); @@ -2411,7 +2417,7 @@ static void end_all_the_calls(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, */ template <class F> -static void WithUrgency(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, +static void WithUrgency(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, grpc_core::chttp2::FlowControlAction::Urgency urgency, grpc_chttp2_initiate_write_reason reason, F action) { switch (urgency) { @@ -2427,8 +2433,8 @@ static void WithUrgency(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, } void grpc_chttp2_act_on_flowctl_action( - grpc_exec_ctx *exec_ctx, const grpc_core::chttp2::FlowControlAction &action, - grpc_chttp2_transport *t, grpc_chttp2_stream *s) { + grpc_exec_ctx* exec_ctx, const grpc_core::chttp2::FlowControlAction& action, + grpc_chttp2_transport* t, grpc_chttp2_stream* s) { WithUrgency( exec_ctx, t, action.send_stream_update(), GRPC_CHTTP2_INITIATE_WRITE_STREAM_FLOW_CONTROL, @@ -2450,20 +2456,20 @@ void grpc_chttp2_act_on_flowctl_action( }); } -static grpc_error *try_http_parsing(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static grpc_error* try_http_parsing(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { grpc_http_parser parser; size_t i = 0; - grpc_error *error = GRPC_ERROR_NONE; + grpc_error* error = GRPC_ERROR_NONE; grpc_http_response response; memset(&response, 0, sizeof(response)); grpc_http_parser_init(&parser, GRPC_HTTP_RESPONSE, &response); - grpc_error *parse_error = GRPC_ERROR_NONE; + grpc_error* parse_error = GRPC_ERROR_NONE; for (; i < t->read_buffer.count && parse_error == GRPC_ERROR_NONE; i++) { parse_error = - grpc_http_parser_parse(&parser, t->read_buffer.slices[i], NULL); + grpc_http_parser_parse(&parser, t->read_buffer.slices[i], nullptr); } if (parse_error == GRPC_ERROR_NONE && (parse_error = grpc_http_parser_eof(&parser)) == GRPC_ERROR_NONE) { @@ -2480,27 +2486,27 @@ static grpc_error *try_http_parsing(grpc_exec_ctx *exec_ctx, return error; } -static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { +static void read_action_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { GPR_TIMER_BEGIN("reading_action_locked", 0); - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; GRPC_ERROR_REF(error); - grpc_error *err = error; + grpc_error* err = error; if (err != GRPC_ERROR_NONE) { err = grpc_error_set_int(GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "Endpoint read failed", &err, 1), GRPC_ERROR_INT_OCCURRED_DURING_WRITE, t->write_state); } - GPR_SWAP(grpc_error *, err, error); + GPR_SWAP(grpc_error*, err, error); GRPC_ERROR_UNREF(err); if (t->closed_with_error == GRPC_ERROR_NONE) { GPR_TIMER_BEGIN("reading_action.parse", 0); size_t i = 0; - grpc_error *errors[3] = {GRPC_ERROR_REF(error), GRPC_ERROR_NONE, + grpc_error* errors[3] = {GRPC_ERROR_REF(error), GRPC_ERROR_NONE, GRPC_ERROR_NONE}; for (; i < t->read_buffer.count && errors[1] == GRPC_ERROR_NONE; i++) { t->flow_control->bdp_estimator()->AddIncomingBytes( @@ -2522,7 +2528,7 @@ static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, GPR_TIMER_BEGIN("post_parse_locked", 0); if (t->initial_window_update != 0) { if (t->initial_window_update > 0) { - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; while (grpc_chttp2_list_pop_stalled_by_stream(t, &s)) { grpc_chttp2_mark_stream_writable(exec_ctx, t, s); grpc_chttp2_initiate_write( @@ -2542,6 +2548,12 @@ static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, "Transport closed", &t->closed_with_error, 1); } if (error != GRPC_ERROR_NONE) { + /* If a goaway frame was received, this might be the reason why the read + * failed. Add this info to the error */ + if (t->goaway_error != GRPC_ERROR_NONE) { + error = grpc_error_add_child(error, GRPC_ERROR_REF(t->goaway_error)); + } + close_transport_locked(exec_ctx, t, GRPC_ERROR_REF(error)); t->endpoint_reading = 0; } else if (t->closed_with_error == GRPC_ERROR_NONE) { @@ -2554,7 +2566,7 @@ static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, grpc_endpoint_read(exec_ctx, t->ep, &t->read_buffer, &t->read_action_locked); grpc_chttp2_act_on_flowctl_action(exec_ctx, t->flow_control->MakeAction(), - t, NULL); + t, nullptr); GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keep_reading"); } else { GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "reading_action"); @@ -2569,17 +2581,17 @@ static void read_action_locked(grpc_exec_ctx *exec_ctx, void *tp, // t is reffed prior to calling the first time, and once the callback chain // that kicks off finishes, it's unreffed -static void schedule_bdp_ping_locked(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static void schedule_bdp_ping_locked(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { t->flow_control->bdp_estimator()->SchedulePing(); send_ping_locked(exec_ctx, t, &t->start_bdp_ping_locked, &t->finish_bdp_ping_locked); } -static void start_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; - if (GRPC_TRACER_ON(grpc_http_trace)) { +static void start_bdp_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Start BDP ping err=%s", t->peer_string, grpc_error_string(error)); } @@ -2590,10 +2602,10 @@ static void start_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, t->flow_control->bdp_estimator()->StartPing(); } -static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; - if (GRPC_TRACER_ON(grpc_http_trace)) { +static void finish_bdp_ping_locked(grpc_exec_ctx* exec_ctx, void* tp, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Complete BDP ping err=%s", t->peer_string, grpc_error_string(error)); } @@ -2611,9 +2623,9 @@ static void finish_bdp_ping_locked(grpc_exec_ctx *exec_ctx, void *tp, &t->next_bdp_ping_timer_expired_locked); } -static void next_bdp_ping_timer_expired_locked(grpc_exec_ctx *exec_ctx, - void *tp, grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; +static void next_bdp_ping_timer_expired_locked(grpc_exec_ctx* exec_ctx, + void* tp, grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; GPR_ASSERT(t->have_next_bdp_ping_timer); t->have_next_bdp_ping_timer = false; if (error != GRPC_ERROR_NONE) { @@ -2623,7 +2635,7 @@ static void next_bdp_ping_timer_expired_locked(grpc_exec_ctx *exec_ctx, schedule_bdp_ping_locked(exec_ctx, t); } -void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args, +void grpc_chttp2_config_default_keepalive_args(grpc_channel_args* args, bool is_client) { size_t i; if (args) { @@ -2681,9 +2693,9 @@ void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args, } } -static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void init_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; GPR_ASSERT(t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING); if (t->destroying || t->closed_with_error != GRPC_ERROR_NONE) { t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING; @@ -2712,18 +2724,18 @@ static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "init keepalive ping"); } -static void start_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void start_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive watchdog"); grpc_timer_init(exec_ctx, &t->keepalive_watchdog_timer, grpc_exec_ctx_now(exec_ctx) + t->keepalive_time, &t->keepalive_watchdog_fired_locked); } -static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void finish_keepalive_ping_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) { if (error == GRPC_ERROR_NONE) { t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING; @@ -2737,9 +2749,9 @@ static void finish_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "keepalive ping end"); } -static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void keepalive_watchdog_fired_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_PINGING) { if (error == GRPC_ERROR_NONE) { t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_DYING; @@ -2764,10 +2776,10 @@ static void keepalive_watchdog_fired_locked(grpc_exec_ctx *exec_ctx, void *arg, * CALLBACK LOOP */ -static void connectivity_state_set(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static void connectivity_state_set(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_connectivity_state state, - grpc_error *error, const char *reason) { + grpc_error* error, const char* reason) { GRPC_CHTTP2_IF_TRACING( gpr_log(GPR_DEBUG, "set connectivity_state=%d", state)); grpc_connectivity_state_set(exec_ctx, &t->channel_callback.state_tracker, @@ -2778,15 +2790,15 @@ static void connectivity_state_set(grpc_exec_ctx *exec_ctx, * POLLSET STUFF */ -static void set_pollset(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_pollset *pollset) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; +static void set_pollset(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_pollset* pollset) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; grpc_endpoint_add_to_pollset(exec_ctx, t->ep, pollset); } -static void set_pollset_set(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_pollset_set *pollset_set) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)gt; +static void set_pollset_set(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_pollset_set* pollset_set) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)gt; grpc_endpoint_add_to_pollset_set(exec_ctx, t->ep, pollset_set); } @@ -2794,9 +2806,9 @@ static void set_pollset_set(grpc_exec_ctx *exec_ctx, grpc_transport *gt, * BYTE STREAM */ -static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_stream *s = (grpc_chttp2_stream *)arg; +static void reset_byte_stream(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_stream* s = (grpc_chttp2_stream*)arg; s->pending_byte_stream = false; if (error == GRPC_ERROR_NONE) { @@ -2805,7 +2817,7 @@ static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, } else { GPR_ASSERT(error != GRPC_ERROR_NONE); GRPC_CLOSURE_SCHED(exec_ctx, s->on_next, GRPC_ERROR_REF(error)); - s->on_next = NULL; + s->on_next = nullptr; GRPC_ERROR_UNREF(s->byte_stream_error); s->byte_stream_error = GRPC_ERROR_NONE; grpc_chttp2_cancel_stream(exec_ctx, s->t, s, GRPC_ERROR_REF(error)); @@ -2813,20 +2825,20 @@ static void reset_byte_stream(grpc_exec_ctx *exec_ctx, void *arg, } } -static void incoming_byte_stream_unref(grpc_exec_ctx *exec_ctx, - grpc_chttp2_incoming_byte_stream *bs) { +static void incoming_byte_stream_unref(grpc_exec_ctx* exec_ctx, + grpc_chttp2_incoming_byte_stream* bs) { if (gpr_unref(&bs->refs)) { gpr_free(bs); } } -static void incoming_byte_stream_next_locked(grpc_exec_ctx *exec_ctx, - void *argp, - grpc_error *error_ignored) { - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)argp; - grpc_chttp2_transport *t = bs->transport; - grpc_chttp2_stream *s = bs->stream; +static void incoming_byte_stream_next_locked(grpc_exec_ctx* exec_ctx, + void* argp, + grpc_error* error_ignored) { + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)argp; + grpc_chttp2_transport* t = bs->transport; + grpc_chttp2_stream* s = bs->stream; size_t cur_length = s->frame_storage.length; if (!s->read_closed) { @@ -2844,9 +2856,9 @@ static void incoming_byte_stream_next_locked(grpc_exec_ctx *exec_ctx, } else if (s->byte_stream_error != GRPC_ERROR_NONE) { GRPC_CLOSURE_SCHED(exec_ctx, bs->next_action.on_complete, GRPC_ERROR_REF(s->byte_stream_error)); - if (s->data_parser.parsing_frame != NULL) { + if (s->data_parser.parsing_frame != nullptr) { incoming_byte_stream_unref(exec_ctx, s->data_parser.parsing_frame); - s->data_parser.parsing_frame = NULL; + s->data_parser.parsing_frame = nullptr; } } else if (s->read_closed) { if (bs->remaining_bytes != 0) { @@ -2854,9 +2866,9 @@ static void incoming_byte_stream_next_locked(grpc_exec_ctx *exec_ctx, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Truncated message"); GRPC_CLOSURE_SCHED(exec_ctx, bs->next_action.on_complete, GRPC_ERROR_REF(s->byte_stream_error)); - if (s->data_parser.parsing_frame != NULL) { + if (s->data_parser.parsing_frame != nullptr) { incoming_byte_stream_unref(exec_ctx, s->data_parser.parsing_frame); - s->data_parser.parsing_frame = NULL; + s->data_parser.parsing_frame = nullptr; } } else { /* Should never reach here. */ @@ -2868,14 +2880,14 @@ static void incoming_byte_stream_next_locked(grpc_exec_ctx *exec_ctx, incoming_byte_stream_unref(exec_ctx, bs); } -static bool incoming_byte_stream_next(grpc_exec_ctx *exec_ctx, - grpc_byte_stream *byte_stream, +static bool incoming_byte_stream_next(grpc_exec_ctx* exec_ctx, + grpc_byte_stream* byte_stream, size_t max_size_hint, - grpc_closure *on_complete) { + grpc_closure* on_complete) { GPR_TIMER_BEGIN("incoming_byte_stream_next", 0); - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)byte_stream; - grpc_chttp2_stream *s = bs->stream; + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)byte_stream; + grpc_chttp2_stream* s = bs->stream; if (s->unprocessed_incoming_frames_buffer.length > 0) { GPR_TIMER_END("incoming_byte_stream_next", 0); return true; @@ -2894,14 +2906,14 @@ static bool incoming_byte_stream_next(grpc_exec_ctx *exec_ctx, } } -static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, - grpc_byte_stream *byte_stream, - grpc_slice *slice) { +static grpc_error* incoming_byte_stream_pull(grpc_exec_ctx* exec_ctx, + grpc_byte_stream* byte_stream, + grpc_slice* slice) { GPR_TIMER_BEGIN("incoming_byte_stream_pull", 0); - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)byte_stream; - grpc_chttp2_stream *s = bs->stream; - grpc_error *error; + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)byte_stream; + grpc_chttp2_stream* s = bs->stream; + grpc_error* error; if (s->unprocessed_incoming_frames_buffer.length > 0) { if (!s->unprocessed_incoming_frames_decompressed) { @@ -2912,7 +2924,7 @@ static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, } if (!grpc_stream_decompress(s->stream_decompression_ctx, &s->unprocessed_incoming_frames_buffer, - &s->decompressed_data_buffer, NULL, + &s->decompressed_data_buffer, nullptr, MAX_SIZE_T, &end_of_context)) { error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Stream decompression error."); @@ -2924,7 +2936,7 @@ static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, s->unprocessed_incoming_frames_decompressed = true; if (end_of_context) { grpc_stream_compression_context_destroy(s->stream_decompression_ctx); - s->stream_decompression_ctx = NULL; + s->stream_decompression_ctx = nullptr; } if (s->unprocessed_incoming_frames_buffer.length == 0) { *slice = grpc_empty_slice(); @@ -2932,7 +2944,7 @@ static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, } error = grpc_deframe_unprocessed_incoming_frames( exec_ctx, &s->data_parser, s, &s->unprocessed_incoming_frames_buffer, - slice, NULL); + slice, nullptr); if (error != GRPC_ERROR_NONE) { return error; } @@ -2945,44 +2957,45 @@ static grpc_error *incoming_byte_stream_pull(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, - void *byte_stream, - grpc_error *error_ignored); +static void incoming_byte_stream_destroy_locked(grpc_exec_ctx* exec_ctx, + void* byte_stream, + grpc_error* error_ignored); -static void incoming_byte_stream_destroy(grpc_exec_ctx *exec_ctx, - grpc_byte_stream *byte_stream) { +static void incoming_byte_stream_destroy(grpc_exec_ctx* exec_ctx, + grpc_byte_stream* byte_stream) { GPR_TIMER_BEGIN("incoming_byte_stream_destroy", 0); - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)byte_stream; + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)byte_stream; GRPC_CLOSURE_SCHED( - exec_ctx, GRPC_CLOSURE_INIT( - &bs->destroy_action, incoming_byte_stream_destroy_locked, - bs, grpc_combiner_scheduler(bs->transport->combiner)), + exec_ctx, + GRPC_CLOSURE_INIT(&bs->destroy_action, + incoming_byte_stream_destroy_locked, bs, + grpc_combiner_scheduler(bs->transport->combiner)), GRPC_ERROR_NONE); GPR_TIMER_END("incoming_byte_stream_destroy", 0); } static void incoming_byte_stream_publish_error( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_error *error) { - grpc_chttp2_stream *s = bs->stream; + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_error* error) { + grpc_chttp2_stream* s = bs->stream; GPR_ASSERT(error != GRPC_ERROR_NONE); GRPC_CLOSURE_SCHED(exec_ctx, s->on_next, GRPC_ERROR_REF(error)); - s->on_next = NULL; + s->on_next = nullptr; GRPC_ERROR_UNREF(s->byte_stream_error); s->byte_stream_error = GRPC_ERROR_REF(error); grpc_chttp2_cancel_stream(exec_ctx, bs->transport, bs->stream, GRPC_ERROR_REF(error)); } -grpc_error *grpc_chttp2_incoming_byte_stream_push( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_slice slice, grpc_slice *slice_out) { - grpc_chttp2_stream *s = bs->stream; +grpc_error* grpc_chttp2_incoming_byte_stream_push( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_slice slice, grpc_slice* slice_out) { + grpc_chttp2_stream* s = bs->stream; if (bs->remaining_bytes < GRPC_SLICE_LENGTH(slice)) { - grpc_error *error = + grpc_error* error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many bytes in stream"); GRPC_CLOSURE_SCHED(exec_ctx, &s->reset_byte_stream, GRPC_ERROR_REF(error)); @@ -2990,17 +3003,17 @@ grpc_error *grpc_chttp2_incoming_byte_stream_push( return error; } else { bs->remaining_bytes -= (uint32_t)GRPC_SLICE_LENGTH(slice); - if (slice_out != NULL) { + if (slice_out != nullptr) { *slice_out = slice; } return GRPC_ERROR_NONE; } } -grpc_error *grpc_chttp2_incoming_byte_stream_finished( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_error *error, bool reset_on_error) { - grpc_chttp2_stream *s = bs->stream; +grpc_error* grpc_chttp2_incoming_byte_stream_finished( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_error* error, bool reset_on_error) { + grpc_chttp2_stream* s = bs->stream; if (error == GRPC_ERROR_NONE) { if (bs->remaining_bytes != 0) { @@ -3014,11 +3027,11 @@ grpc_error *grpc_chttp2_incoming_byte_stream_finished( return error; } -static void incoming_byte_stream_shutdown(grpc_exec_ctx *exec_ctx, - grpc_byte_stream *byte_stream, - grpc_error *error) { - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)byte_stream; +static void incoming_byte_stream_shutdown(grpc_exec_ctx* exec_ctx, + grpc_byte_stream* byte_stream, + grpc_error* error) { + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)byte_stream; GRPC_ERROR_UNREF(grpc_chttp2_incoming_byte_stream_finished( exec_ctx, bs, error, true /* reset_on_error */)); } @@ -3027,13 +3040,13 @@ static const grpc_byte_stream_vtable grpc_chttp2_incoming_byte_stream_vtable = { incoming_byte_stream_next, incoming_byte_stream_pull, incoming_byte_stream_shutdown, incoming_byte_stream_destroy}; -static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, - void *byte_stream, - grpc_error *error_ignored) { - grpc_chttp2_incoming_byte_stream *bs = - (grpc_chttp2_incoming_byte_stream *)byte_stream; - grpc_chttp2_stream *s = bs->stream; - grpc_chttp2_transport *t = s->t; +static void incoming_byte_stream_destroy_locked(grpc_exec_ctx* exec_ctx, + void* byte_stream, + grpc_error* error_ignored) { + grpc_chttp2_incoming_byte_stream* bs = + (grpc_chttp2_incoming_byte_stream*)byte_stream; + grpc_chttp2_stream* s = bs->stream; + grpc_chttp2_transport* t = s->t; GPR_ASSERT(bs->base.vtable == &grpc_chttp2_incoming_byte_stream_vtable); incoming_byte_stream_unref(exec_ctx, bs); @@ -3042,11 +3055,11 @@ static void incoming_byte_stream_destroy_locked(grpc_exec_ctx *exec_ctx, grpc_chttp2_maybe_complete_recv_trailing_metadata(exec_ctx, t, s); } -grpc_chttp2_incoming_byte_stream *grpc_chttp2_incoming_byte_stream_create( - grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, grpc_chttp2_stream *s, +grpc_chttp2_incoming_byte_stream* grpc_chttp2_incoming_byte_stream_create( + grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, grpc_chttp2_stream* s, uint32_t frame_size, uint32_t flags) { - grpc_chttp2_incoming_byte_stream *incoming_byte_stream = - (grpc_chttp2_incoming_byte_stream *)gpr_malloc( + grpc_chttp2_incoming_byte_stream* incoming_byte_stream = + (grpc_chttp2_incoming_byte_stream*)gpr_malloc( sizeof(*incoming_byte_stream)); incoming_byte_stream->base.length = frame_size; incoming_byte_stream->remaining_bytes = frame_size; @@ -3064,8 +3077,8 @@ grpc_chttp2_incoming_byte_stream *grpc_chttp2_incoming_byte_stream_create( * RESOURCE QUOTAS */ -static void post_benign_reclaimer(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static void post_benign_reclaimer(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { if (!t->benign_reclaimer_registered) { t->benign_reclaimer_registered = true; GRPC_CHTTP2_REF_TRANSPORT(t, "benign_reclaimer"); @@ -3075,8 +3088,8 @@ static void post_benign_reclaimer(grpc_exec_ctx *exec_ctx, } } -static void post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static void post_destructive_reclaimer(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { if (!t->destructive_reclaimer_registered) { t->destructive_reclaimer_registered = true; GRPC_CHTTP2_REF_TRANSPORT(t, "destructive_reclaimer"); @@ -3086,14 +3099,14 @@ static void post_destructive_reclaimer(grpc_exec_ctx *exec_ctx, } } -static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void benign_reclaimer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; if (error == GRPC_ERROR_NONE && grpc_chttp2_stream_map_size(&t->stream_map) == 0) { /* Channel with no active streams: send a goaway to try and make it * disconnect cleanly */ - if (GRPC_TRACER_ON(grpc_resource_quota_trace)) { + if (grpc_resource_quota_trace.enabled()) { gpr_log(GPR_DEBUG, "HTTP2: %s - send goaway to free memory", t->peer_string); } @@ -3101,8 +3114,7 @@ static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, grpc_error_set_int( GRPC_ERROR_CREATE_FROM_STATIC_STRING("Buffers full"), GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM)); - } else if (error == GRPC_ERROR_NONE && - GRPC_TRACER_ON(grpc_resource_quota_trace)) { + } else if (error == GRPC_ERROR_NONE && grpc_resource_quota_trace.enabled()) { gpr_log(GPR_DEBUG, "HTTP2: %s - skip benign reclamation, there are still %" PRIdPTR " streams", @@ -3116,15 +3128,15 @@ static void benign_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "benign_reclaimer"); } -static void destructive_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)arg; +static void destructive_reclaimer_locked(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)arg; size_t n = grpc_chttp2_stream_map_size(&t->stream_map); t->destructive_reclaimer_registered = false; if (error == GRPC_ERROR_NONE && n > 0) { - grpc_chttp2_stream *s = - (grpc_chttp2_stream *)grpc_chttp2_stream_map_rand(&t->stream_map); - if (GRPC_TRACER_ON(grpc_resource_quota_trace)) { + grpc_chttp2_stream* s = + (grpc_chttp2_stream*)grpc_chttp2_stream_map_rand(&t->stream_map); + if (grpc_resource_quota_trace.enabled()) { gpr_log(GPR_DEBUG, "HTTP2: %s - abandon stream id %d", t->peer_string, s->id); } @@ -3152,7 +3164,7 @@ static void destructive_reclaimer_locked(grpc_exec_ctx *exec_ctx, void *arg, * MONITORING */ -const char *grpc_chttp2_initiate_write_reason_string( +const char* grpc_chttp2_initiate_write_reason_string( grpc_chttp2_initiate_write_reason reason) { switch (reason) { case GRPC_CHTTP2_INITIATE_WRITE_INITIAL_WRITE: @@ -3199,9 +3211,9 @@ const char *grpc_chttp2_initiate_write_reason_string( GPR_UNREACHABLE_CODE(return "unknown"); } -static grpc_endpoint *chttp2_get_endpoint(grpc_exec_ctx *exec_ctx, - grpc_transport *t) { - return ((grpc_chttp2_transport *)t)->ep; +static grpc_endpoint* chttp2_get_endpoint(grpc_exec_ctx* exec_ctx, + grpc_transport* t) { + return ((grpc_chttp2_transport*)t)->ep; } static const grpc_transport_vtable vtable = {sizeof(grpc_chttp2_stream), @@ -3215,24 +3227,24 @@ static const grpc_transport_vtable vtable = {sizeof(grpc_chttp2_stream), destroy_transport, chttp2_get_endpoint}; -static const grpc_transport_vtable *get_vtable(void) { return &vtable; } +static const grpc_transport_vtable* get_vtable(void) { return &vtable; } -grpc_transport *grpc_create_chttp2_transport( - grpc_exec_ctx *exec_ctx, const grpc_channel_args *channel_args, - grpc_endpoint *ep, int is_client) { - grpc_chttp2_transport *t = - (grpc_chttp2_transport *)gpr_zalloc(sizeof(grpc_chttp2_transport)); +grpc_transport* grpc_create_chttp2_transport( + grpc_exec_ctx* exec_ctx, const grpc_channel_args* channel_args, + grpc_endpoint* ep, int is_client) { + grpc_chttp2_transport* t = + (grpc_chttp2_transport*)gpr_zalloc(sizeof(grpc_chttp2_transport)); init_transport(exec_ctx, t, channel_args, ep, is_client != 0); return &t->base; } -void grpc_chttp2_transport_start_reading(grpc_exec_ctx *exec_ctx, - grpc_transport *transport, - grpc_slice_buffer *read_buffer) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)transport; +void grpc_chttp2_transport_start_reading(grpc_exec_ctx* exec_ctx, + grpc_transport* transport, + grpc_slice_buffer* read_buffer) { + grpc_chttp2_transport* t = (grpc_chttp2_transport*)transport; GRPC_CHTTP2_REF_TRANSPORT( t, "reading_action"); /* matches unref inside reading_action */ - if (read_buffer != NULL) { + if (read_buffer != nullptr) { grpc_slice_buffer_move_into(read_buffer, &t->read_buffer); gpr_free(read_buffer); } diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.h b/src/core/ext/transport/chttp2/transport/chttp2_transport.h index 321fca4c82..54abbe6e5f 100644 --- a/src/core/ext/transport/chttp2/transport/chttp2_transport.h +++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.h @@ -23,27 +23,23 @@ #include "src/core/lib/iomgr/endpoint.h" #include "src/core/lib/transport/transport.h" +extern grpc_core::TraceFlag grpc_http_trace; +extern grpc_core::TraceFlag grpc_trace_http2_stream_state; +extern grpc_core::DebugOnlyTraceFlag grpc_trace_chttp2_refcount; + #ifdef __cplusplus extern "C" { #endif -extern grpc_tracer_flag grpc_http_trace; -extern grpc_tracer_flag grpc_flowctl_trace; -extern grpc_tracer_flag grpc_trace_http2_stream_state; - -#ifndef NDEBUG -extern grpc_tracer_flag grpc_trace_chttp2_refcount; -#endif - -grpc_transport *grpc_create_chttp2_transport( - grpc_exec_ctx *exec_ctx, const grpc_channel_args *channel_args, - grpc_endpoint *ep, int is_client); +grpc_transport* grpc_create_chttp2_transport( + grpc_exec_ctx* exec_ctx, const grpc_channel_args* channel_args, + grpc_endpoint* ep, int is_client); /// Takes ownership of \a read_buffer, which (if non-NULL) contains /// leftover bytes previously read from the endpoint (e.g., by handshakers). -void grpc_chttp2_transport_start_reading(grpc_exec_ctx *exec_ctx, - grpc_transport *transport, - grpc_slice_buffer *read_buffer); +void grpc_chttp2_transport_start_reading(grpc_exec_ctx* exec_ctx, + grpc_transport* transport, + grpc_slice_buffer* read_buffer); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/flow_control.cc b/src/core/ext/transport/chttp2/transport/flow_control.cc index 40545bc74b..8a057bd9ff 100644 --- a/src/core/ext/transport/chttp2/transport/flow_control.cc +++ b/src/core/ext/transport/chttp2/transport/flow_control.cc @@ -31,6 +31,8 @@ #include "src/core/ext/transport/chttp2/transport/internal.h" #include "src/core/lib/support/string.h" +grpc_core::TraceFlag grpc_flowctl_trace(false, "flowctl"); + namespace grpc_core { namespace chttp2 { @@ -224,9 +226,9 @@ grpc_error* StreamFlowControl::RecvData(int64_t incoming_frame_size) { incoming_frame_size, acked_stream_window, sent_stream_window); } else { char* msg; - gpr_asprintf(&msg, "frame of size %" PRId64 - " overflows local window of %" PRId64, - incoming_frame_size, acked_stream_window); + gpr_asprintf( + &msg, "frame of size %" PRId64 " overflows local window of %" PRId64, + incoming_frame_size, acked_stream_window); grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; @@ -312,7 +314,9 @@ double TransportFlowControl::SmoothLogBdp(grpc_exec_ctx* exec_ctx, double bdp_error = value - pid_controller_.last_control_value(); const double dt = (double)(now - last_pid_update_) * 1e-3; last_pid_update_ = now; - return pid_controller_.Update(bdp_error, dt); + // Limit dt to 100ms + const double kMaxDt = 0.1; + return pid_controller_.Update(bdp_error, dt > kMaxDt ? kMaxDt : dt); } FlowControlAction::Urgency TransportFlowControl::DeltaUrgency( diff --git a/src/core/ext/transport/chttp2/transport/flow_control.h b/src/core/ext/transport/chttp2/transport/flow_control.h index d5107d467b..2515c94309 100644 --- a/src/core/ext/transport/chttp2/transport/flow_control.h +++ b/src/core/ext/transport/chttp2/transport/flow_control.h @@ -19,6 +19,7 @@ #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FLOW_CONTROL_H #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_FLOW_CONTROL_H +#include <grpc/support/port_platform.h> #include <stdint.h> #include <grpc/support/useful.h> @@ -30,7 +31,13 @@ struct grpc_chttp2_transport; struct grpc_chttp2_stream; -extern "C" grpc_tracer_flag grpc_flowctl_trace; +extern grpc_core::TraceFlag grpc_flowctl_trace; + +namespace grpc { +namespace testing { +class TrickledCHTTP2; // to make this a friend +} // namespace testing +} // namespace grpc namespace grpc_core { namespace chttp2 { @@ -112,7 +119,7 @@ class FlowControlTrace { StreamFlowControl* sfc); void Finish(); - const bool enabled_ = GRPC_TRACER_ON(grpc_flowctl_trace); + const bool enabled_ = grpc_flowctl_trace.enabled(); TransportFlowControl* tfc_; StreamFlowControl* sfc_; @@ -203,6 +210,7 @@ class TransportFlowControl { } private: + friend class ::grpc::testing::TrickledCHTTP2; double TargetLogBdp(); double SmoothLogBdp(grpc_exec_ctx* exec_ctx, double value); FlowControlAction::Urgency DeltaUrgency(int32_t value, @@ -297,6 +305,7 @@ class StreamFlowControl { } private: + friend class ::grpc::testing::TrickledCHTTP2; TransportFlowControl* const tfc_; const grpc_chttp2_stream* const s_; diff --git a/src/core/ext/transport/chttp2/transport/frame_data.cc b/src/core/ext/transport/chttp2/transport/frame_data.cc index 73aaab1802..f0c3b55792 100644 --- a/src/core/ext/transport/chttp2/transport/frame_data.cc +++ b/src/core/ext/transport/chttp2/transport/frame_data.cc @@ -30,15 +30,15 @@ #include "src/core/lib/support/string.h" #include "src/core/lib/transport/transport.h" -grpc_error *grpc_chttp2_data_parser_init(grpc_chttp2_data_parser *parser) { +grpc_error* grpc_chttp2_data_parser_init(grpc_chttp2_data_parser* parser) { parser->state = GRPC_CHTTP2_DATA_FH_0; - parser->parsing_frame = NULL; + parser->parsing_frame = nullptr; return GRPC_ERROR_NONE; } -void grpc_chttp2_data_parser_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_data_parser *parser) { - if (parser->parsing_frame != NULL) { +void grpc_chttp2_data_parser_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_data_parser* parser) { + if (parser->parsing_frame != nullptr) { GRPC_ERROR_UNREF(grpc_chttp2_incoming_byte_stream_finished( exec_ctx, parser->parsing_frame, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Parser destroyed"), false)); @@ -46,14 +46,14 @@ void grpc_chttp2_data_parser_destroy(grpc_exec_ctx *exec_ctx, GRPC_ERROR_UNREF(parser->error); } -grpc_error *grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser *parser, +grpc_error* grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser* parser, uint8_t flags, uint32_t stream_id, - grpc_chttp2_stream *s) { + grpc_chttp2_stream* s) { if (flags & ~GRPC_CHTTP2_DATA_FLAG_END_STREAM) { - char *msg; + char* msg; gpr_asprintf(&msg, "unsupported data flags: 0x%02x", flags); - grpc_error *err = + grpc_error* err = grpc_error_set_int(GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg), GRPC_ERROR_INT_STREAM_ID, (intptr_t)stream_id); gpr_free(msg); @@ -69,12 +69,12 @@ grpc_error *grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser *parser, return GRPC_ERROR_NONE; } -void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf, +void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer* inbuf, uint32_t write_bytes, int is_eof, - grpc_transport_one_way_stats *stats, - grpc_slice_buffer *outbuf) { + grpc_transport_one_way_stats* stats, + grpc_slice_buffer* outbuf) { grpc_slice hdr; - uint8_t *p; + uint8_t* p; static const size_t header_size = 9; hdr = GRPC_SLICE_MALLOC(header_size); @@ -97,17 +97,17 @@ void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf, stats->data_bytes += write_bytes; } -grpc_error *grpc_deframe_unprocessed_incoming_frames( - grpc_exec_ctx *exec_ctx, grpc_chttp2_data_parser *p, grpc_chttp2_stream *s, - grpc_slice_buffer *slices, grpc_slice *slice_out, - grpc_byte_stream **stream_out) { - grpc_error *error = GRPC_ERROR_NONE; - grpc_chttp2_transport *t = s->t; +grpc_error* grpc_deframe_unprocessed_incoming_frames( + grpc_exec_ctx* exec_ctx, grpc_chttp2_data_parser* p, grpc_chttp2_stream* s, + grpc_slice_buffer* slices, grpc_slice* slice_out, + grpc_byte_stream** stream_out) { + grpc_error* error = GRPC_ERROR_NONE; + grpc_chttp2_transport* t = s->t; while (slices->count > 0) { - uint8_t *beg = NULL; - uint8_t *end = NULL; - uint8_t *cur = NULL; + uint8_t* beg = nullptr; + uint8_t* end = nullptr; + uint8_t* cur = nullptr; grpc_slice slice = grpc_slice_buffer_take_first(slices); @@ -115,7 +115,7 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( end = GRPC_SLICE_END_PTR(slice); cur = beg; uint32_t message_flags; - char *msg; + char* msg; if (cur == end) { grpc_slice_unref_internal(exec_ctx, slice); @@ -188,8 +188,8 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( /* fallthrough */ case GRPC_CHTTP2_DATA_FH_4: s->stats.incoming.framing_bytes++; - GPR_ASSERT(stream_out != NULL); - GPR_ASSERT(p->parsing_frame == NULL); + GPR_ASSERT(stream_out != nullptr); + GPR_ASSERT(p->parsing_frame == nullptr); p->frame_size |= ((uint32_t)*cur); p->state = GRPC_CHTTP2_DATA_FRAME; ++cur; @@ -203,7 +203,7 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( if (p->parsing_frame->remaining_bytes == 0) { GRPC_ERROR_UNREF(grpc_chttp2_incoming_byte_stream_finished( exec_ctx, p->parsing_frame, GRPC_ERROR_NONE, true)); - p->parsing_frame = NULL; + p->parsing_frame = nullptr; p->state = GRPC_CHTTP2_DATA_FH_0; } s->pending_byte_stream = true; @@ -216,8 +216,8 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( grpc_slice_unref_internal(exec_ctx, slice); return GRPC_ERROR_NONE; case GRPC_CHTTP2_DATA_FRAME: { - GPR_ASSERT(p->parsing_frame != NULL); - GPR_ASSERT(slice_out != NULL); + GPR_ASSERT(p->parsing_frame != nullptr); + GPR_ASSERT(slice_out != nullptr); if (cur == end) { grpc_slice_unref_internal(exec_ctx, slice); continue; @@ -239,7 +239,7 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( grpc_slice_unref_internal(exec_ctx, slice); return error; } - p->parsing_frame = NULL; + p->parsing_frame = nullptr; p->state = GRPC_CHTTP2_DATA_FH_0; grpc_slice_unref_internal(exec_ctx, slice); return GRPC_ERROR_NONE; @@ -273,7 +273,7 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( grpc_slice_unref_internal(exec_ctx, slice); return error; } - p->parsing_frame = NULL; + p->parsing_frame = nullptr; p->state = GRPC_CHTTP2_DATA_FH_0; cur += p->frame_size; grpc_slice_buffer_undo_take_first( @@ -289,9 +289,9 @@ grpc_error *grpc_deframe_unprocessed_incoming_frames( return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_data_parser_parse(grpc_exec_ctx* exec_ctx, void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { if (!s->pending_byte_stream) { grpc_slice_ref_internal(slice); @@ -302,7 +302,7 @@ grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, grpc_slice_ref_internal(slice); grpc_slice_buffer_add(&s->unprocessed_incoming_frames_buffer, slice); GRPC_CLOSURE_SCHED(exec_ctx, s->on_next, GRPC_ERROR_NONE); - s->on_next = NULL; + s->on_next = nullptr; s->unprocessed_incoming_frames_decompressed = false; } else { grpc_slice_ref_internal(slice); diff --git a/src/core/ext/transport/chttp2/transport/frame_data.h b/src/core/ext/transport/chttp2/transport/frame_data.h index 81ec5361a3..96f823a0ad 100644 --- a/src/core/ext/transport/chttp2/transport/frame_data.h +++ b/src/core/ext/transport/chttp2/transport/frame_data.h @@ -49,40 +49,40 @@ typedef struct { grpc_chttp2_stream_state state; uint8_t frame_type; uint32_t frame_size; - grpc_error *error; + grpc_error* error; bool is_frame_compressed; - grpc_chttp2_incoming_byte_stream *parsing_frame; + grpc_chttp2_incoming_byte_stream* parsing_frame; } grpc_chttp2_data_parser; /* initialize per-stream state for data frame parsing */ -grpc_error *grpc_chttp2_data_parser_init(grpc_chttp2_data_parser *parser); +grpc_error* grpc_chttp2_data_parser_init(grpc_chttp2_data_parser* parser); -void grpc_chttp2_data_parser_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_data_parser *parser); +void grpc_chttp2_data_parser_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_data_parser* parser); /* start processing a new data frame */ -grpc_error *grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser *parser, +grpc_error* grpc_chttp2_data_parser_begin_frame(grpc_chttp2_data_parser* parser, uint8_t flags, uint32_t stream_id, - grpc_chttp2_stream *s); + grpc_chttp2_stream* s); /* handle a slice of a data frame - is_last indicates the last slice of a frame */ -grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_data_parser_parse(grpc_exec_ctx* exec_ctx, void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); -void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf, +void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer* inbuf, uint32_t write_bytes, int is_eof, - grpc_transport_one_way_stats *stats, - grpc_slice_buffer *outbuf); + grpc_transport_one_way_stats* stats, + grpc_slice_buffer* outbuf); -grpc_error *grpc_deframe_unprocessed_incoming_frames( - grpc_exec_ctx *exec_ctx, grpc_chttp2_data_parser *p, grpc_chttp2_stream *s, - grpc_slice_buffer *slices, grpc_slice *slice_out, - grpc_byte_stream **stream_out); +grpc_error* grpc_deframe_unprocessed_incoming_frames( + grpc_exec_ctx* exec_ctx, grpc_chttp2_data_parser* p, grpc_chttp2_stream* s, + grpc_slice_buffer* slices, grpc_slice* slice_out, + grpc_byte_stream** stream_out); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/frame_goaway.cc b/src/core/ext/transport/chttp2/transport/frame_goaway.cc index 78ec08e177..a2ce709a2e 100644 --- a/src/core/ext/transport/chttp2/transport/frame_goaway.cc +++ b/src/core/ext/transport/chttp2/transport/frame_goaway.cc @@ -25,42 +25,42 @@ #include <grpc/support/log.h> #include <grpc/support/string_util.h> -void grpc_chttp2_goaway_parser_init(grpc_chttp2_goaway_parser *p) { - p->debug_data = NULL; +void grpc_chttp2_goaway_parser_init(grpc_chttp2_goaway_parser* p) { + p->debug_data = nullptr; } -void grpc_chttp2_goaway_parser_destroy(grpc_chttp2_goaway_parser *p) { +void grpc_chttp2_goaway_parser_destroy(grpc_chttp2_goaway_parser* p) { gpr_free(p->debug_data); } -grpc_error *grpc_chttp2_goaway_parser_begin_frame(grpc_chttp2_goaway_parser *p, +grpc_error* grpc_chttp2_goaway_parser_begin_frame(grpc_chttp2_goaway_parser* p, uint32_t length, uint8_t flags) { if (length < 8) { - char *msg; + char* msg; gpr_asprintf(&msg, "goaway frame too short (%d bytes)", length); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } gpr_free(p->debug_data); p->debug_length = length - 8; - p->debug_data = (char *)gpr_malloc(p->debug_length); + p->debug_data = (char*)gpr_malloc(p->debug_length); p->debug_pos = 0; p->state = GRPC_CHTTP2_GOAWAY_LSI0; return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_goaway_parser_parse(grpc_exec_ctx *exec_ctx, - void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_goaway_parser_parse(grpc_exec_ctx* exec_ctx, + void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { - uint8_t *const beg = GRPC_SLICE_START_PTR(slice); - uint8_t *const end = GRPC_SLICE_END_PTR(slice); - uint8_t *cur = beg; - grpc_chttp2_goaway_parser *p = (grpc_chttp2_goaway_parser *)parser; + uint8_t* const beg = GRPC_SLICE_START_PTR(slice); + uint8_t* const end = GRPC_SLICE_END_PTR(slice); + uint8_t* cur = beg; + grpc_chttp2_goaway_parser* p = (grpc_chttp2_goaway_parser*)parser; switch (p->state) { case GRPC_CHTTP2_GOAWAY_LSI0: @@ -137,7 +137,7 @@ grpc_error *grpc_chttp2_goaway_parser_parse(grpc_exec_ctx *exec_ctx, grpc_chttp2_add_incoming_goaway( exec_ctx, t, (uint32_t)p->error_code, grpc_slice_new(p->debug_data, p->debug_length, gpr_free)); - p->debug_data = NULL; + p->debug_data = nullptr; } return GRPC_ERROR_NONE; } @@ -147,9 +147,9 @@ grpc_error *grpc_chttp2_goaway_parser_parse(grpc_exec_ctx *exec_ctx, void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code, grpc_slice debug_data, - grpc_slice_buffer *slice_buffer) { + grpc_slice_buffer* slice_buffer) { grpc_slice header = GRPC_SLICE_MALLOC(9 + 4 + 4); - uint8_t *p = GRPC_SLICE_START_PTR(header); + uint8_t* p = GRPC_SLICE_START_PTR(header); uint32_t frame_length; GPR_ASSERT(GRPC_SLICE_LENGTH(debug_data) < UINT32_MAX - 4 - 4); frame_length = 4 + 4 + (uint32_t)GRPC_SLICE_LENGTH(debug_data); diff --git a/src/core/ext/transport/chttp2/transport/frame_goaway.h b/src/core/ext/transport/chttp2/transport/frame_goaway.h index 7b3aa45f3f..9790d0b08d 100644 --- a/src/core/ext/transport/chttp2/transport/frame_goaway.h +++ b/src/core/ext/transport/chttp2/transport/frame_goaway.h @@ -45,24 +45,24 @@ typedef struct { grpc_chttp2_goaway_parse_state state; uint32_t last_stream_id; uint32_t error_code; - char *debug_data; + char* debug_data; uint32_t debug_length; uint32_t debug_pos; } grpc_chttp2_goaway_parser; -void grpc_chttp2_goaway_parser_init(grpc_chttp2_goaway_parser *p); -void grpc_chttp2_goaway_parser_destroy(grpc_chttp2_goaway_parser *p); -grpc_error *grpc_chttp2_goaway_parser_begin_frame( - grpc_chttp2_goaway_parser *parser, uint32_t length, uint8_t flags); -grpc_error *grpc_chttp2_goaway_parser_parse(grpc_exec_ctx *exec_ctx, - void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +void grpc_chttp2_goaway_parser_init(grpc_chttp2_goaway_parser* p); +void grpc_chttp2_goaway_parser_destroy(grpc_chttp2_goaway_parser* p); +grpc_error* grpc_chttp2_goaway_parser_begin_frame( + grpc_chttp2_goaway_parser* parser, uint32_t length, uint8_t flags); +grpc_error* grpc_chttp2_goaway_parser_parse(grpc_exec_ctx* exec_ctx, + void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); void grpc_chttp2_goaway_append(uint32_t last_stream_id, uint32_t error_code, grpc_slice debug_data, - grpc_slice_buffer *slice_buffer); + grpc_slice_buffer* slice_buffer); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/frame_ping.cc b/src/core/ext/transport/chttp2/transport/frame_ping.cc index 1cfa883ee1..d0feb51922 100644 --- a/src/core/ext/transport/chttp2/transport/frame_ping.cc +++ b/src/core/ext/transport/chttp2/transport/frame_ping.cc @@ -29,7 +29,7 @@ static bool g_disable_ping_ack = false; grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint64_t opaque_8bytes) { grpc_slice slice = GRPC_SLICE_MALLOC(9 + 8); - uint8_t *p = GRPC_SLICE_START_PTR(slice); + uint8_t* p = GRPC_SLICE_START_PTR(slice); *p++ = 0; *p++ = 0; @@ -52,13 +52,13 @@ grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint64_t opaque_8bytes) { return slice; } -grpc_error *grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser *parser, +grpc_error* grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser* parser, uint32_t length, uint8_t flags) { if (flags & 0xfe || length != 8) { - char *msg; + char* msg; gpr_asprintf(&msg, "invalid ping: length=%d, flags=%02x", length, flags); - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return error; } @@ -68,14 +68,14 @@ grpc_error *grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser *parser, return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_ping_parser_parse(grpc_exec_ctx* exec_ctx, void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { - uint8_t *const beg = GRPC_SLICE_START_PTR(slice); - uint8_t *const end = GRPC_SLICE_END_PTR(slice); - uint8_t *cur = beg; - grpc_chttp2_ping_parser *p = (grpc_chttp2_ping_parser *)parser; + uint8_t* const beg = GRPC_SLICE_START_PTR(slice); + uint8_t* const end = GRPC_SLICE_END_PTR(slice); + uint8_t* cur = beg; + grpc_chttp2_ping_parser* p = (grpc_chttp2_ping_parser*)parser; while (p->byte != 8 && cur != end) { p->opaque_8bytes |= (((uint64_t)*cur) << (56 - 8 * p->byte)); @@ -112,7 +112,7 @@ grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, if (!g_disable_ping_ack) { if (t->ping_ack_count == t->ping_ack_capacity) { t->ping_ack_capacity = GPR_MAX(t->ping_ack_capacity * 3 / 2, 3); - t->ping_acks = (uint64_t *)gpr_realloc( + t->ping_acks = (uint64_t*)gpr_realloc( t->ping_acks, t->ping_ack_capacity * sizeof(*t->ping_acks)); } t->ping_acks[t->ping_ack_count++] = p->opaque_8bytes; diff --git a/src/core/ext/transport/chttp2/transport/frame_ping.h b/src/core/ext/transport/chttp2/transport/frame_ping.h index ffc2f0cf2f..034aad002e 100644 --- a/src/core/ext/transport/chttp2/transport/frame_ping.h +++ b/src/core/ext/transport/chttp2/transport/frame_ping.h @@ -35,11 +35,11 @@ typedef struct { grpc_slice grpc_chttp2_ping_create(uint8_t ack, uint64_t opaque_8bytes); -grpc_error *grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser *parser, +grpc_error* grpc_chttp2_ping_parser_begin_frame(grpc_chttp2_ping_parser* parser, uint32_t length, uint8_t flags); -grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_ping_parser_parse(grpc_exec_ctx* exec_ctx, void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); /* Test-only function for disabling ping ack */ diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.cc b/src/core/ext/transport/chttp2/transport/frame_rst_stream.cc index 0133b6efa2..05a7f056a4 100644 --- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.cc +++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.cc @@ -27,11 +27,11 @@ #include "src/core/lib/transport/http2_errors.h" grpc_slice grpc_chttp2_rst_stream_create(uint32_t id, uint32_t code, - grpc_transport_one_way_stats *stats) { + grpc_transport_one_way_stats* stats) { static const size_t frame_size = 13; grpc_slice slice = GRPC_SLICE_MALLOC(frame_size); stats->framing_bytes += frame_size; - uint8_t *p = GRPC_SLICE_START_PTR(slice); + uint8_t* p = GRPC_SLICE_START_PTR(slice); // Frame size. *p++ = 0; @@ -55,13 +55,13 @@ grpc_slice grpc_chttp2_rst_stream_create(uint32_t id, uint32_t code, return slice; } -grpc_error *grpc_chttp2_rst_stream_parser_begin_frame( - grpc_chttp2_rst_stream_parser *parser, uint32_t length, uint8_t flags) { +grpc_error* grpc_chttp2_rst_stream_parser_begin_frame( + grpc_chttp2_rst_stream_parser* parser, uint32_t length, uint8_t flags) { if (length != 4) { - char *msg; + char* msg; gpr_asprintf(&msg, "invalid rst_stream: length=%d, flags=%02x", length, flags); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } @@ -69,15 +69,15 @@ grpc_error *grpc_chttp2_rst_stream_parser_begin_frame( return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx *exec_ctx, - void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx* exec_ctx, + void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { - uint8_t *const beg = GRPC_SLICE_START_PTR(slice); - uint8_t *const end = GRPC_SLICE_END_PTR(slice); - uint8_t *cur = beg; - grpc_chttp2_rst_stream_parser *p = (grpc_chttp2_rst_stream_parser *)parser; + uint8_t* const beg = GRPC_SLICE_START_PTR(slice); + uint8_t* const end = GRPC_SLICE_END_PTR(slice); + uint8_t* cur = beg; + grpc_chttp2_rst_stream_parser* p = (grpc_chttp2_rst_stream_parser*)parser; while (p->byte != 4 && cur != end) { p->reason_bytes[p->byte] = *cur; @@ -92,9 +92,9 @@ grpc_error *grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx *exec_ctx, (((uint32_t)p->reason_bytes[1]) << 16) | (((uint32_t)p->reason_bytes[2]) << 8) | (((uint32_t)p->reason_bytes[3])); - grpc_error *error = GRPC_ERROR_NONE; + grpc_error* error = GRPC_ERROR_NONE; if (reason != GRPC_HTTP2_NO_ERROR || s->metadata_buffer[1].size == 0) { - char *message; + char* message; gpr_asprintf(&message, "Received RST_STREAM with error code %d", reason); error = grpc_error_set_int( grpc_error_set_str(GRPC_ERROR_CREATE_FROM_STATIC_STRING("RST_STREAM"), diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.h b/src/core/ext/transport/chttp2/transport/frame_rst_stream.h index 102ffdb3f3..3f5417e993 100644 --- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.h +++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.h @@ -34,14 +34,14 @@ typedef struct { } grpc_chttp2_rst_stream_parser; grpc_slice grpc_chttp2_rst_stream_create(uint32_t stream_id, uint32_t code, - grpc_transport_one_way_stats *stats); - -grpc_error *grpc_chttp2_rst_stream_parser_begin_frame( - grpc_chttp2_rst_stream_parser *parser, uint32_t length, uint8_t flags); -grpc_error *grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx *exec_ctx, - void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, + grpc_transport_one_way_stats* stats); + +grpc_error* grpc_chttp2_rst_stream_parser_begin_frame( + grpc_chttp2_rst_stream_parser* parser, uint32_t length, uint8_t flags); +grpc_error* grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx* exec_ctx, + void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); #ifdef __cplusplus diff --git a/src/core/ext/transport/chttp2/transport/frame_settings.cc b/src/core/ext/transport/chttp2/transport/frame_settings.cc index db0245bb57..75bb78db4c 100644 --- a/src/core/ext/transport/chttp2/transport/frame_settings.cc +++ b/src/core/ext/transport/chttp2/transport/frame_settings.cc @@ -31,7 +31,7 @@ #include "src/core/lib/debug/trace.h" #include "src/core/lib/transport/http2_errors.h" -static uint8_t *fill_header(uint8_t *out, uint32_t length, uint8_t flags) { +static uint8_t* fill_header(uint8_t* out, uint32_t length, uint8_t flags) { *out++ = (uint8_t)(length >> 16); *out++ = (uint8_t)(length >> 8); *out++ = (uint8_t)(length); @@ -44,13 +44,13 @@ static uint8_t *fill_header(uint8_t *out, uint32_t length, uint8_t flags) { return out; } -grpc_slice grpc_chttp2_settings_create(uint32_t *old_settings, - const uint32_t *new_settings, +grpc_slice grpc_chttp2_settings_create(uint32_t* old_settings, + const uint32_t* new_settings, uint32_t force_mask, size_t count) { size_t i; uint32_t n = 0; grpc_slice output; - uint8_t *p; + uint8_t* p; for (i = 0; i < count; i++) { n += (new_settings[i] != old_settings[i] || (force_mask & (1u << i)) != 0); @@ -82,9 +82,9 @@ grpc_slice grpc_chttp2_settings_ack_create(void) { return output; } -grpc_error *grpc_chttp2_settings_parser_begin_frame( - grpc_chttp2_settings_parser *parser, uint32_t length, uint8_t flags, - uint32_t *settings) { +grpc_error* grpc_chttp2_settings_parser_begin_frame( + grpc_chttp2_settings_parser* parser, uint32_t length, uint8_t flags, + uint32_t* settings) { parser->target_settings = settings; memcpy(parser->incoming_settings, settings, GRPC_CHTTP2_NUM_SETTINGS * sizeof(uint32_t)); @@ -108,14 +108,14 @@ grpc_error *grpc_chttp2_settings_parser_begin_frame( } } -grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, void *p, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_settings_parser_parse(grpc_exec_ctx* exec_ctx, void* p, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { - grpc_chttp2_settings_parser *parser = (grpc_chttp2_settings_parser *)p; - const uint8_t *cur = GRPC_SLICE_START_PTR(slice); - const uint8_t *end = GRPC_SLICE_END_PTR(slice); - char *msg; + grpc_chttp2_settings_parser* parser = (grpc_chttp2_settings_parser*)p; + const uint8_t* cur = GRPC_SLICE_START_PTR(slice); + const uint8_t* end = GRPC_SLICE_END_PTR(slice); + char* msg; grpc_chttp2_setting_id id; if (parser->is_ack) { @@ -180,7 +180,7 @@ grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, void *p, cur++; if (grpc_wire_id_to_setting_id(parser->id, &id)) { - const grpc_chttp2_setting_parameters *sp = + const grpc_chttp2_setting_parameters* sp = &grpc_chttp2_settings_parameters[id]; if (parser->value < sp->min_value || parser->value > sp->max_value) { switch (sp->invalid_value_behavior) { @@ -195,7 +195,7 @@ grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, void *p, &t->qbuf); gpr_asprintf(&msg, "invalid value %u passed for %s", parser->value, sp->name); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } @@ -204,20 +204,19 @@ grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, void *p, parser->incoming_settings[id] != parser->value) { t->initial_window_update += (int64_t)parser->value - parser->incoming_settings[id]; - if (GRPC_TRACER_ON(grpc_http_trace) || - GRPC_TRACER_ON(grpc_flowctl_trace)) { + if (grpc_http_trace.enabled() || grpc_flowctl_trace.enabled()) { gpr_log(GPR_DEBUG, "%p[%s] adding %d for initial_window change", t, t->is_client ? "cli" : "svr", (int)t->initial_window_update); } } parser->incoming_settings[id] = parser->value; - if (GRPC_TRACER_ON(grpc_http_trace)) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "CHTTP2:%s:%s: got setting %s = %d", t->is_client ? "CLI" : "SVR", t->peer_string, sp->name, parser->value); } - } else if (GRPC_TRACER_ON(grpc_http_trace)) { + } else if (grpc_http_trace.enabled()) { gpr_log(GPR_ERROR, "CHTTP2: Ignoring unknown setting %d (value %d)", parser->id, parser->value); } diff --git a/src/core/ext/transport/chttp2/transport/frame_settings.h b/src/core/ext/transport/chttp2/transport/frame_settings.h index 3364da1520..18bde92815 100644 --- a/src/core/ext/transport/chttp2/transport/frame_settings.h +++ b/src/core/ext/transport/chttp2/transport/frame_settings.h @@ -40,7 +40,7 @@ typedef enum { typedef struct { grpc_chttp2_settings_parse_state state; - uint32_t *target_settings; + uint32_t* target_settings; uint8_t is_ack; uint16_t id; uint32_t value; @@ -48,18 +48,18 @@ typedef struct { } grpc_chttp2_settings_parser; /* Create a settings frame by diffing old & new, and updating old to be new */ -grpc_slice grpc_chttp2_settings_create(uint32_t *old, const uint32_t *newval, +grpc_slice grpc_chttp2_settings_create(uint32_t* old, const uint32_t* newval, uint32_t force_mask, size_t count); /* Create an ack settings frame */ grpc_slice grpc_chttp2_settings_ack_create(void); -grpc_error *grpc_chttp2_settings_parser_begin_frame( - grpc_chttp2_settings_parser *parser, uint32_t length, uint8_t flags, - uint32_t *settings); -grpc_error *grpc_chttp2_settings_parser_parse(grpc_exec_ctx *exec_ctx, - void *parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_settings_parser_begin_frame( + grpc_chttp2_settings_parser* parser, uint32_t length, uint8_t flags, + uint32_t* settings); +grpc_error* grpc_chttp2_settings_parser_parse(grpc_exec_ctx* exec_ctx, + void* parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); #ifdef __cplusplus diff --git a/src/core/ext/transport/chttp2/transport/frame_window_update.cc b/src/core/ext/transport/chttp2/transport/frame_window_update.cc index 15eaf59285..08407a8e67 100644 --- a/src/core/ext/transport/chttp2/transport/frame_window_update.cc +++ b/src/core/ext/transport/chttp2/transport/frame_window_update.cc @@ -24,11 +24,11 @@ #include <grpc/support/string_util.h> grpc_slice grpc_chttp2_window_update_create( - uint32_t id, uint32_t window_update, grpc_transport_one_way_stats *stats) { + uint32_t id, uint32_t window_update, grpc_transport_one_way_stats* stats) { static const size_t frame_size = 13; grpc_slice slice = GRPC_SLICE_MALLOC(frame_size); stats->header_bytes += frame_size; - uint8_t *p = GRPC_SLICE_START_PTR(slice); + uint8_t* p = GRPC_SLICE_START_PTR(slice); GPR_ASSERT(window_update); @@ -49,13 +49,13 @@ grpc_slice grpc_chttp2_window_update_create( return slice; } -grpc_error *grpc_chttp2_window_update_parser_begin_frame( - grpc_chttp2_window_update_parser *parser, uint32_t length, uint8_t flags) { +grpc_error* grpc_chttp2_window_update_parser_begin_frame( + grpc_chttp2_window_update_parser* parser, uint32_t length, uint8_t flags) { if (flags || length != 4) { - char *msg; + char* msg; gpr_asprintf(&msg, "invalid window update: length=%d, flags=%02x", length, flags); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } @@ -64,14 +64,14 @@ grpc_error *grpc_chttp2_window_update_parser_begin_frame( return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_window_update_parser_parse( - grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_slice slice, int is_last) { - uint8_t *const beg = GRPC_SLICE_START_PTR(slice); - uint8_t *const end = GRPC_SLICE_END_PTR(slice); - uint8_t *cur = beg; - grpc_chttp2_window_update_parser *p = - (grpc_chttp2_window_update_parser *)parser; +grpc_error* grpc_chttp2_window_update_parser_parse( + grpc_exec_ctx* exec_ctx, void* parser, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { + uint8_t* const beg = GRPC_SLICE_START_PTR(slice); + uint8_t* const end = GRPC_SLICE_END_PTR(slice); + uint8_t* cur = beg; + grpc_chttp2_window_update_parser* p = + (grpc_chttp2_window_update_parser*)parser; while (p->byte != 4 && cur != end) { p->amount |= ((uint32_t)*cur) << (8 * (3 - p->byte)); @@ -79,23 +79,23 @@ grpc_error *grpc_chttp2_window_update_parser_parse( p->byte++; } - if (s != NULL) { + if (s != nullptr) { s->stats.incoming.framing_bytes += (uint32_t)(end - cur); } if (p->byte == 4) { uint32_t received_update = p->amount; if (received_update == 0 || (received_update & 0x80000000u)) { - char *msg; + char* msg; gpr_asprintf(&msg, "invalid window update bytes: %d", p->amount); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } GPR_ASSERT(is_last); if (t->incoming_stream_id != 0) { - if (s != NULL) { + if (s != nullptr) { s->flow_control->RecvUpdate(received_update); if (grpc_chttp2_list_remove_stalled_by_stream(t, s)) { grpc_chttp2_mark_stream_writable(exec_ctx, t, s); diff --git a/src/core/ext/transport/chttp2/transport/frame_window_update.h b/src/core/ext/transport/chttp2/transport/frame_window_update.h index 400f9f5398..daf7d2da6b 100644 --- a/src/core/ext/transport/chttp2/transport/frame_window_update.h +++ b/src/core/ext/transport/chttp2/transport/frame_window_update.h @@ -35,13 +35,13 @@ typedef struct { } grpc_chttp2_window_update_parser; grpc_slice grpc_chttp2_window_update_create( - uint32_t id, uint32_t window_delta, grpc_transport_one_way_stats *stats); + uint32_t id, uint32_t window_delta, grpc_transport_one_way_stats* stats); -grpc_error *grpc_chttp2_window_update_parser_begin_frame( - grpc_chttp2_window_update_parser *parser, uint32_t length, uint8_t flags); -grpc_error *grpc_chttp2_window_update_parser_parse( - grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_slice slice, int is_last); +grpc_error* grpc_chttp2_window_update_parser_begin_frame( + grpc_chttp2_window_update_parser* parser, uint32_t length, uint8_t flags); +grpc_error* grpc_chttp2_window_update_parser_parse( + grpc_exec_ctx* exec_ctx, void* parser, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.cc b/src/core/ext/transport/chttp2/transport/hpack_encoder.cc index 0ea50e394b..e76d92e31d 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_encoder.cc +++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.cc @@ -51,14 +51,12 @@ /* don't consider adding anything bigger than this to the hpack table */ #define MAX_DECODER_SPACE_USAGE 512 -static grpc_slice_refcount terminal_slice_refcount = {NULL, NULL}; +static grpc_slice_refcount terminal_slice_refcount = {nullptr, nullptr}; static const grpc_slice terminal_slice = { &terminal_slice_refcount, /* refcount */ - {{0, 0}} /* data.refcounted */ + {{nullptr, 0}} /* data.refcounted */ }; -extern "C" grpc_tracer_flag grpc_http_trace; - typedef struct { int is_first_frame; /* number of bytes in 'output' when we started the frame - used to calculate @@ -70,15 +68,15 @@ typedef struct { uint8_t seen_regular_header; /* output stream id */ uint32_t stream_id; - grpc_slice_buffer *output; - grpc_transport_one_way_stats *stats; + grpc_slice_buffer* output; + grpc_transport_one_way_stats* stats; /* maximum size of a frame */ size_t max_frame_size; bool use_true_binary_metadata; } framer_state; /* fills p (which is expected to be 9 bytes long) with a data frame header */ -static void fill_header(uint8_t *p, uint8_t type, uint32_t id, size_t len, +static void fill_header(uint8_t* p, uint8_t type, uint32_t id, size_t len, uint8_t flags) { GPR_ASSERT(len < 16777316); *p++ = (uint8_t)(len >> 16); @@ -93,7 +91,7 @@ static void fill_header(uint8_t *p, uint8_t type, uint32_t id, size_t len, } /* finish a frame - fill in the previously reserved header */ -static void finish_frame(framer_state *st, int is_header_boundary, +static void finish_frame(framer_state* st, int is_header_boundary, int is_last_in_stream) { uint8_t type = 0xff; type = st->is_first_frame ? GRPC_CHTTP2_FRAME_HEADER @@ -109,7 +107,7 @@ static void finish_frame(framer_state *st, int is_header_boundary, /* begin a new frame: reserve off header space, remember how many bytes we'd output before beginning */ -static void begin_frame(framer_state *st) { +static void begin_frame(framer_state* st) { st->header_idx = grpc_slice_buffer_add_indexed(st->output, GRPC_SLICE_MALLOC(9)); st->output_length_at_start_of_frame = st->output->length; @@ -118,7 +116,7 @@ static void begin_frame(framer_state *st) { /* make sure that the current frame is of the type desired, and has sufficient space to add at least about_to_add bytes -- finishes the current frame if needed */ -static void ensure_space(framer_state *st, size_t need_bytes) { +static void ensure_space(framer_state* st, size_t need_bytes) { if (st->output->length - st->output_length_at_start_of_frame + need_bytes <= st->max_frame_size) { return; @@ -128,7 +126,7 @@ static void ensure_space(framer_state *st, size_t need_bytes) { } /* increment a filter count, halve all counts if one element reaches max */ -static void inc_filter(uint8_t idx, uint32_t *sum, uint8_t *elems) { +static void inc_filter(uint8_t idx, uint32_t* sum, uint8_t* elems) { elems[idx]++; if (elems[idx] < 255) { (*sum)++; @@ -142,7 +140,7 @@ static void inc_filter(uint8_t idx, uint32_t *sum, uint8_t *elems) { } } -static void add_header_data(framer_state *st, grpc_slice slice) { +static void add_header_data(framer_state* st, grpc_slice slice) { size_t len = GRPC_SLICE_LENGTH(slice); size_t remaining; if (len == 0) return; @@ -160,13 +158,13 @@ static void add_header_data(framer_state *st, grpc_slice slice) { } } -static uint8_t *add_tiny_header_data(framer_state *st, size_t len) { +static uint8_t* add_tiny_header_data(framer_state* st, size_t len) { ensure_space(st, len); st->stats->header_bytes += len; return grpc_slice_buffer_tiny_add(st->output, len); } -static void evict_entry(grpc_chttp2_hpack_compressor *c) { +static void evict_entry(grpc_chttp2_hpack_compressor* c) { c->tail_remote_index++; GPR_ASSERT(c->tail_remote_index > 0); GPR_ASSERT(c->table_size >= @@ -181,7 +179,7 @@ static void evict_entry(grpc_chttp2_hpack_compressor *c) { // Reserve space in table for the new element, evict entries if needed. // Return the new index of the element. Return 0 to indicate not adding to // table. -static uint32_t prepare_space_for_new_elem(grpc_chttp2_hpack_compressor *c, +static uint32_t prepare_space_for_new_elem(grpc_chttp2_hpack_compressor* c, size_t elem_size) { uint32_t new_index = c->tail_remote_index + c->table_elems + 1; GPR_ASSERT(elem_size < 65536); @@ -208,14 +206,14 @@ static uint32_t prepare_space_for_new_elem(grpc_chttp2_hpack_compressor *c, } /* dummy function */ -static void add_nothing(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, grpc_mdelem elem, +static void add_nothing(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, grpc_mdelem elem, size_t elem_size) {} // Add a key to the dynamic table. Both key and value will be added to table at // the decoder. -static void add_key_with_index(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void add_key_with_index(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, grpc_mdelem elem, uint32_t new_index) { if (new_index == 0) { return; @@ -257,8 +255,8 @@ static void add_key_with_index(grpc_exec_ctx *exec_ctx, } /* add an element to the decoder table */ -static void add_elem_with_index(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void add_elem_with_index(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, grpc_mdelem elem, uint32_t new_index) { if (new_index == 0) { return; @@ -301,21 +299,21 @@ static void add_elem_with_index(grpc_exec_ctx *exec_ctx, add_key_with_index(exec_ctx, c, elem, new_index); } -static void add_elem(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, +static void add_elem(grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_compressor* c, grpc_mdelem elem, size_t elem_size) { uint32_t new_index = prepare_space_for_new_elem(c, elem_size); add_elem_with_index(exec_ctx, c, elem, new_index); } -static void add_key(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, +static void add_key(grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_compressor* c, grpc_mdelem elem, size_t elem_size) { uint32_t new_index = prepare_space_for_new_elem(c, elem_size); add_key_with_index(exec_ctx, c, elem, new_index); } -static void emit_indexed(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, uint32_t elem_index, - framer_state *st) { +static void emit_indexed(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, uint32_t elem_index, + framer_state* st) { GRPC_STATS_INC_HPACK_SEND_INDEXED(exec_ctx); uint32_t len = GRPC_CHTTP2_VARINT_LENGTH(elem_index, 1); GRPC_CHTTP2_WRITE_VARINT(elem_index, 1, 0x80, add_tiny_header_data(st, len), @@ -328,7 +326,7 @@ typedef struct { bool insert_null_before_wire_value; } wire_value; -static wire_value get_wire_value(grpc_exec_ctx *exec_ctx, grpc_mdelem elem, +static wire_value get_wire_value(grpc_exec_ctx* exec_ctx, grpc_mdelem elem, bool true_binary_enabled) { wire_value wire_val; if (grpc_is_binary_header(GRPC_MDKEY(elem))) { @@ -359,15 +357,15 @@ static size_t wire_value_length(wire_value v) { return GPR_SLICE_LENGTH(v.data) + v.insert_null_before_wire_value; } -static void add_wire_value(framer_state *st, wire_value v) { +static void add_wire_value(framer_state* st, wire_value v) { if (v.insert_null_before_wire_value) *add_tiny_header_data(st, 1) = 0; add_header_data(st, v.data); } -static void emit_lithdr_incidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void emit_lithdr_incidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, uint32_t key_index, grpc_mdelem elem, - framer_state *st) { + framer_state* st) { GRPC_STATS_INC_HPACK_SEND_LITHDR_INCIDX(exec_ctx); uint32_t len_pfx = GRPC_CHTTP2_VARINT_LENGTH(key_index, 2); wire_value value = @@ -383,10 +381,10 @@ static void emit_lithdr_incidx(grpc_exec_ctx *exec_ctx, add_wire_value(st, value); } -static void emit_lithdr_noidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void emit_lithdr_noidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, uint32_t key_index, grpc_mdelem elem, - framer_state *st) { + framer_state* st) { GRPC_STATS_INC_HPACK_SEND_LITHDR_NOTIDX(exec_ctx); uint32_t len_pfx = GRPC_CHTTP2_VARINT_LENGTH(key_index, 4); wire_value value = @@ -402,10 +400,10 @@ static void emit_lithdr_noidx(grpc_exec_ctx *exec_ctx, add_wire_value(st, value); } -static void emit_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void emit_lithdr_incidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, uint32_t unused_index, grpc_mdelem elem, - framer_state *st) { + framer_state* st) { GPR_ASSERT(unused_index == 0); GRPC_STATS_INC_HPACK_SEND_LITHDR_INCIDX_V(exec_ctx); GRPC_STATS_INC_HPACK_SEND_UNCOMPRESSED(exec_ctx); @@ -426,10 +424,10 @@ static void emit_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, add_wire_value(st, value); } -static void emit_lithdr_noidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, +static void emit_lithdr_noidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, uint32_t unused_index, grpc_mdelem elem, - framer_state *st) { + framer_state* st) { GPR_ASSERT(unused_index == 0); GRPC_STATS_INC_HPACK_SEND_LITHDR_NOTIDX_V(exec_ctx); GRPC_STATS_INC_HPACK_SEND_UNCOMPRESSED(exec_ctx); @@ -450,22 +448,22 @@ static void emit_lithdr_noidx_v(grpc_exec_ctx *exec_ctx, add_wire_value(st, value); } -static void emit_advertise_table_size_change(grpc_chttp2_hpack_compressor *c, - framer_state *st) { +static void emit_advertise_table_size_change(grpc_chttp2_hpack_compressor* c, + framer_state* st) { uint32_t len = GRPC_CHTTP2_VARINT_LENGTH(c->max_table_size, 3); GRPC_CHTTP2_WRITE_VARINT(c->max_table_size, 3, 0x20, add_tiny_header_data(st, len), len); c->advertise_table_size_change = 0; } -static uint32_t dynidx(grpc_chttp2_hpack_compressor *c, uint32_t elem_index) { +static uint32_t dynidx(grpc_chttp2_hpack_compressor* c, uint32_t elem_index) { return 1 + GRPC_CHTTP2_LAST_STATIC_ENTRY + c->tail_remote_index + c->table_elems - elem_index; } /* encode an mdelem */ -static void hpack_enc(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, - grpc_mdelem elem, framer_state *st) { +static void hpack_enc(grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_compressor* c, + grpc_mdelem elem, framer_state* st) { GPR_ASSERT(GRPC_SLICE_LENGTH(GRPC_MDKEY(elem)) > 0); if (GRPC_SLICE_START_PTR(GRPC_MDKEY(elem))[0] != ':') { /* regular header */ st->seen_regular_header = 1; @@ -475,9 +473,9 @@ static void hpack_enc(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, "Reserved header (colon-prefixed) happening after regular ones."); } - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *k = grpc_slice_to_c_string(GRPC_MDKEY(elem)); - char *v = NULL; + if (grpc_http_trace.enabled()) { + char* k = grpc_slice_to_c_string(GRPC_MDKEY(elem)); + char* v = nullptr; if (grpc_is_binary_header(GRPC_MDKEY(elem))) { v = grpc_dump_slice(GRPC_MDVALUE(elem), GPR_DUMP_HEX); } else { @@ -540,11 +538,10 @@ static void hpack_enc(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, decoder_space_usage < MAX_DECODER_SPACE_USAGE && c->filter_elems[HASH_FRAGMENT_1(elem_hash)] >= c->filter_elems_sum / ONE_ON_ADD_PROBABILITY; - void (*maybe_add)(grpc_exec_ctx *, grpc_chttp2_hpack_compressor *, - grpc_mdelem, size_t) = - should_add_elem ? add_elem : add_nothing; - void (*emit)(grpc_exec_ctx *, grpc_chttp2_hpack_compressor *, uint32_t, - grpc_mdelem, framer_state *) = + void (*maybe_add)(grpc_exec_ctx*, grpc_chttp2_hpack_compressor*, grpc_mdelem, + size_t) = should_add_elem ? add_elem : add_nothing; + void (*emit)(grpc_exec_ctx*, grpc_chttp2_hpack_compressor*, uint32_t, + grpc_mdelem, framer_state*) = should_add_elem ? emit_lithdr_incidx : emit_lithdr_noidx; /* no hits for the elem... maybe there's a key? */ @@ -582,9 +579,9 @@ static void hpack_enc(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_compressor *c, #define STRLEN_LIT(x) (sizeof(x) - 1) #define TIMEOUT_KEY "grpc-timeout" -static void deadline_enc(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, grpc_millis deadline, - framer_state *st) { +static void deadline_enc(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, grpc_millis deadline, + framer_state* st) { char timeout_str[GRPC_HTTP2_TIMEOUT_ENCODE_MIN_BUFSIZE]; grpc_mdelem mdelem; grpc_http2_encode_timeout(deadline - grpc_exec_ctx_now(exec_ctx), @@ -597,14 +594,14 @@ static void deadline_enc(grpc_exec_ctx *exec_ctx, static uint32_t elems_for_bytes(uint32_t bytes) { return (bytes + 31) / 32; } -void grpc_chttp2_hpack_compressor_init(grpc_chttp2_hpack_compressor *c) { +void grpc_chttp2_hpack_compressor_init(grpc_chttp2_hpack_compressor* c) { memset(c, 0, sizeof(*c)); c->max_table_size = GRPC_CHTTP2_HPACKC_INITIAL_TABLE_SIZE; c->cap_table_elems = elems_for_bytes(c->max_table_size); c->max_table_elems = c->cap_table_elems; c->max_usable_size = GRPC_CHTTP2_HPACKC_INITIAL_TABLE_SIZE; c->table_elem_size = - (uint16_t *)gpr_malloc(sizeof(*c->table_elem_size) * c->cap_table_elems); + (uint16_t*)gpr_malloc(sizeof(*c->table_elem_size) * c->cap_table_elems); memset(c->table_elem_size, 0, sizeof(*c->table_elem_size) * c->cap_table_elems); for (size_t i = 0; i < GPR_ARRAY_SIZE(c->entries_keys); i++) { @@ -612,8 +609,8 @@ void grpc_chttp2_hpack_compressor_init(grpc_chttp2_hpack_compressor *c) { } } -void grpc_chttp2_hpack_compressor_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c) { +void grpc_chttp2_hpack_compressor_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c) { int i; for (i = 0; i < GRPC_CHTTP2_HPACKC_NUM_VALUES; i++) { if (c->entries_keys[i].refcount != &terminal_slice_refcount) { @@ -625,15 +622,15 @@ void grpc_chttp2_hpack_compressor_destroy(grpc_exec_ctx *exec_ctx, } void grpc_chttp2_hpack_compressor_set_max_usable_size( - grpc_chttp2_hpack_compressor *c, uint32_t max_table_size) { + grpc_chttp2_hpack_compressor* c, uint32_t max_table_size) { c->max_usable_size = max_table_size; grpc_chttp2_hpack_compressor_set_max_table_size( c, GPR_MIN(c->max_table_size, max_table_size)); } -static void rebuild_elems(grpc_chttp2_hpack_compressor *c, uint32_t new_cap) { - uint16_t *table_elem_size = - (uint16_t *)gpr_malloc(sizeof(*table_elem_size) * new_cap); +static void rebuild_elems(grpc_chttp2_hpack_compressor* c, uint32_t new_cap) { + uint16_t* table_elem_size = + (uint16_t*)gpr_malloc(sizeof(*table_elem_size) * new_cap); uint32_t i; memset(table_elem_size, 0, sizeof(*table_elem_size) * new_cap); @@ -651,7 +648,7 @@ static void rebuild_elems(grpc_chttp2_hpack_compressor *c, uint32_t new_cap) { } void grpc_chttp2_hpack_compressor_set_max_table_size( - grpc_chttp2_hpack_compressor *c, uint32_t max_table_size) { + grpc_chttp2_hpack_compressor* c, uint32_t max_table_size) { max_table_size = GPR_MIN(max_table_size, c->max_usable_size); if (max_table_size == c->max_table_size) { return; @@ -670,18 +667,18 @@ void grpc_chttp2_hpack_compressor_set_max_table_size( } } c->advertise_table_size_change = 1; - if (GRPC_TRACER_ON(grpc_http_trace)) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "set max table size from encoder to %d", max_table_size); } } -void grpc_chttp2_encode_header(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, - grpc_mdelem **extra_headers, +void grpc_chttp2_encode_header(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, + grpc_mdelem** extra_headers, size_t extra_headers_size, - grpc_metadata_batch *metadata, - const grpc_encode_header_options *options, - grpc_slice_buffer *outbuf) { + grpc_metadata_batch* metadata, + const grpc_encode_header_options* options, + grpc_slice_buffer* outbuf) { GPR_ASSERT(options->stream_id != 0); framer_state st; @@ -705,7 +702,7 @@ void grpc_chttp2_encode_header(grpc_exec_ctx *exec_ctx, hpack_enc(exec_ctx, c, *extra_headers[i], &st); } grpc_metadata_batch_assert_ok(metadata); - for (grpc_linked_mdelem *l = metadata->list.head; l; l = l->next) { + for (grpc_linked_mdelem* l = metadata->list.head; l; l = l->next) { hpack_enc(exec_ctx, c, l->md, &st); } grpc_millis deadline = metadata->deadline; diff --git a/src/core/ext/transport/chttp2/transport/hpack_encoder.h b/src/core/ext/transport/chttp2/transport/hpack_encoder.h index 16316b63f7..96d8e99dd0 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_encoder.h +++ b/src/core/ext/transport/chttp2/transport/hpack_encoder.h @@ -34,6 +34,8 @@ /* maximum table size we'll actually use */ #define GRPC_CHTTP2_HPACKC_MAX_TABLE_SIZE (1024 * 1024) +extern grpc_core::TraceFlag grpc_http_trace; + #ifdef __cplusplus extern "C" { #endif @@ -68,32 +70,32 @@ typedef struct { uint32_t indices_keys[GRPC_CHTTP2_HPACKC_NUM_VALUES]; uint32_t indices_elems[GRPC_CHTTP2_HPACKC_NUM_VALUES]; - uint16_t *table_elem_size; + uint16_t* table_elem_size; } grpc_chttp2_hpack_compressor; -void grpc_chttp2_hpack_compressor_init(grpc_chttp2_hpack_compressor *c); -void grpc_chttp2_hpack_compressor_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c); +void grpc_chttp2_hpack_compressor_init(grpc_chttp2_hpack_compressor* c); +void grpc_chttp2_hpack_compressor_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c); void grpc_chttp2_hpack_compressor_set_max_table_size( - grpc_chttp2_hpack_compressor *c, uint32_t max_table_size); + grpc_chttp2_hpack_compressor* c, uint32_t max_table_size); void grpc_chttp2_hpack_compressor_set_max_usable_size( - grpc_chttp2_hpack_compressor *c, uint32_t max_table_size); + grpc_chttp2_hpack_compressor* c, uint32_t max_table_size); typedef struct { uint32_t stream_id; bool is_eof; bool use_true_binary_metadata; size_t max_frame_size; - grpc_transport_one_way_stats *stats; + grpc_transport_one_way_stats* stats; } grpc_encode_header_options; -void grpc_chttp2_encode_header(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_compressor *c, - grpc_mdelem **extra_headers, +void grpc_chttp2_encode_header(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_compressor* c, + grpc_mdelem** extra_headers, size_t extra_headers_size, - grpc_metadata_batch *metadata, - const grpc_encode_header_options *options, - grpc_slice_buffer *outbuf); + grpc_metadata_batch* metadata, + const grpc_encode_header_options* options, + grpc_slice_buffer* outbuf); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/hpack_parser.cc b/src/core/ext/transport/chttp2/transport/hpack_parser.cc index 7c17229122..18cb27f199 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_parser.cc +++ b/src/core/ext/transport/chttp2/transport/hpack_parser.cc @@ -61,97 +61,97 @@ typedef enum { a set of indirect jumps, and so not waste stack space. */ /* forward declarations for parsing states */ -static grpc_error *parse_begin(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_error(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end, grpc_error *error); -static grpc_error *still_parse_error(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_illegal_op(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); - -static grpc_error *parse_string_prefix(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_key_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_value_string_with_indexed_key( - grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value_string_with_literal_key( - grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); - -static grpc_error *parse_value0(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value1(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value2(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value3(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value4(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_value5up(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); - -static grpc_error *parse_indexed_field(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_indexed_field_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_incidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_lithdr_incidx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_notidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_lithdr_notidx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_notidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_nvridx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_lithdr_nvridx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_lithdr_nvridx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end); -static grpc_error *parse_max_tbl_size(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); -static grpc_error *parse_max_tbl_size_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end); +static grpc_error* parse_begin(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_error(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end, grpc_error* error); +static grpc_error* still_parse_error(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_illegal_op(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); + +static grpc_error* parse_string_prefix(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_key_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_value_string_with_indexed_key( + grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value_string_with_literal_key( + grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); + +static grpc_error* parse_value0(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value1(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value2(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value3(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value4(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_value5up(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); + +static grpc_error* parse_indexed_field(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_indexed_field_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_incidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_lithdr_incidx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_incidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_notidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_lithdr_notidx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_notidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_nvridx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_lithdr_nvridx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_lithdr_nvridx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end); +static grpc_error* parse_max_tbl_size(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); +static grpc_error* parse_max_tbl_size_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end); /* we translate the first byte of a hpack field into one of these decoding cases, then use a lookup table to jump directly to the appropriate parser. @@ -649,11 +649,11 @@ static const uint8_t inverse_base64[256] = { }; /* emission helpers */ -static grpc_error *on_hdr(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, +static grpc_error* on_hdr(grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, grpc_mdelem md, int add_to_table) { - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *k = grpc_slice_to_c_string(GRPC_MDKEY(md)); - char *v = NULL; + if (grpc_http_trace.enabled()) { + char* k = grpc_slice_to_c_string(GRPC_MDKEY(md)); + char* v = nullptr; if (grpc_is_binary_header(GRPC_MDKEY(md))) { v = grpc_dump_slice(GRPC_MDVALUE(md), GPR_DUMP_HEX); } else { @@ -671,10 +671,10 @@ static grpc_error *on_hdr(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, if (add_to_table) { GPR_ASSERT(GRPC_MDELEM_STORAGE(md) == GRPC_MDELEM_STORAGE_INTERNED || GRPC_MDELEM_STORAGE(md) == GRPC_MDELEM_STORAGE_STATIC); - grpc_error *err = grpc_chttp2_hptbl_add(exec_ctx, &p->table, md); + grpc_error* err = grpc_chttp2_hptbl_add(exec_ctx, &p->table, md); if (err != GRPC_ERROR_NONE) return err; } - if (p->on_header == NULL) { + if (p->on_header == nullptr) { GRPC_MDELEM_UNREF(exec_ctx, md); return GRPC_ERROR_CREATE_FROM_STATIC_STRING("on_header callback not set"); } @@ -682,9 +682,9 @@ static grpc_error *on_hdr(grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, return GRPC_ERROR_NONE; } -static grpc_slice take_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - grpc_chttp2_hpack_parser_string *str, +static grpc_slice take_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + grpc_chttp2_hpack_parser_string* str, bool intern) { grpc_slice s; if (!str->copied) { @@ -708,18 +708,18 @@ static grpc_slice take_string(grpc_exec_ctx *exec_ctx, } /* jump to the next state */ -static grpc_error *parse_next(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_next(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { p->state = *p->next_state++; return p->state(exec_ctx, p, cur, end); } /* begin parsing a header: all functionality is encoded into lookup tables above */ -static grpc_error *parse_begin(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_begin(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { if (cur == end) { p->state = parse_begin; return GRPC_ERROR_NONE; @@ -729,9 +729,9 @@ static grpc_error *parse_begin(grpc_exec_ctx *exec_ctx, } /* stream dependency and prioritization data: we just skip it */ -static grpc_error *parse_stream_weight(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_stream_weight(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_stream_weight; return GRPC_ERROR_NONE; @@ -740,9 +740,9 @@ static grpc_error *parse_stream_weight(grpc_exec_ctx *exec_ctx, return p->after_prioritization(exec_ctx, p, cur + 1, end); } -static grpc_error *parse_stream_dep3(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_stream_dep3(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_stream_dep3; return GRPC_ERROR_NONE; @@ -751,9 +751,9 @@ static grpc_error *parse_stream_dep3(grpc_exec_ctx *exec_ctx, return parse_stream_weight(exec_ctx, p, cur + 1, end); } -static grpc_error *parse_stream_dep2(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_stream_dep2(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_stream_dep2; return GRPC_ERROR_NONE; @@ -762,9 +762,9 @@ static grpc_error *parse_stream_dep2(grpc_exec_ctx *exec_ctx, return parse_stream_dep3(exec_ctx, p, cur + 1, end); } -static grpc_error *parse_stream_dep1(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_stream_dep1(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_stream_dep1; return GRPC_ERROR_NONE; @@ -773,9 +773,9 @@ static grpc_error *parse_stream_dep1(grpc_exec_ctx *exec_ctx, return parse_stream_dep2(exec_ctx, p, cur + 1, end); } -static grpc_error *parse_stream_dep0(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_stream_dep0(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_stream_dep0; return GRPC_ERROR_NONE; @@ -785,10 +785,10 @@ static grpc_error *parse_stream_dep0(grpc_exec_ctx *exec_ctx, } /* emit an indexed field; jumps to begin the next field on completion */ -static grpc_error *finish_indexed_field(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_indexed_field(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { grpc_mdelem md = grpc_chttp2_hptbl_lookup(&p->table, p->index); if (GRPC_MDISNULL(md)) { return grpc_error_set_int( @@ -799,25 +799,25 @@ static grpc_error *finish_indexed_field(grpc_exec_ctx *exec_ctx, } GRPC_MDELEM_REF(md); GRPC_STATS_INC_HPACK_RECV_INDEXED(exec_ctx); - grpc_error *err = on_hdr(exec_ctx, p, md, 0); + grpc_error* err = on_hdr(exec_ctx, p, md, 0); if (err != GRPC_ERROR_NONE) return err; return parse_begin(exec_ctx, p, cur, end); } /* parse an indexed field with index < 127 */ -static grpc_error *parse_indexed_field(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_indexed_field(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { p->dynamic_table_update_allowed = 0; p->index = (*cur) & 0x7f; return finish_indexed_field(exec_ctx, p, cur + 1, end); } /* parse an indexed field with index >= 127 */ -static grpc_error *parse_indexed_field_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_indexed_field_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { finish_indexed_field}; p->dynamic_table_update_allowed = 0; @@ -828,14 +828,14 @@ static grpc_error *parse_indexed_field_x(grpc_exec_ctx *exec_ctx, } /* finish a literal header with incremental indexing */ -static grpc_error *finish_lithdr_incidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_incidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { grpc_mdelem md = grpc_chttp2_hptbl_lookup(&p->table, p->index); GPR_ASSERT(!GRPC_MDISNULL(md)); /* handled in string parsing */ GRPC_STATS_INC_HPACK_RECV_LITHDR_INCIDX(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, grpc_slice_ref_internal(GRPC_MDKEY(md)), take_string(exec_ctx, p, &p->value, true)), @@ -845,12 +845,12 @@ static grpc_error *finish_lithdr_incidx(grpc_exec_ctx *exec_ctx, } /* finish a literal header with incremental indexing with no index */ -static grpc_error *finish_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_incidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { GRPC_STATS_INC_HPACK_RECV_LITHDR_INCIDX_V(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, take_string(exec_ctx, p, &p->key, true), take_string(exec_ctx, p, &p->value, true)), @@ -860,9 +860,9 @@ static grpc_error *finish_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, } /* parse a literal header with incremental indexing; index < 63 */ -static grpc_error *parse_lithdr_incidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_lithdr_incidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_value_string_with_indexed_key, finish_lithdr_incidx}; p->dynamic_table_update_allowed = 0; @@ -872,10 +872,10 @@ static grpc_error *parse_lithdr_incidx(grpc_exec_ctx *exec_ctx, } /* parse a literal header with incremental indexing; index >= 63 */ -static grpc_error *parse_lithdr_incidx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_incidx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_string_prefix, parse_value_string_with_indexed_key, finish_lithdr_incidx}; @@ -887,10 +887,10 @@ static grpc_error *parse_lithdr_incidx_x(grpc_exec_ctx *exec_ctx, } /* parse a literal header with incremental indexing; index = 0 */ -static grpc_error *parse_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_incidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_key_string, parse_string_prefix, parse_value_string_with_literal_key, finish_lithdr_incidx_v}; @@ -900,14 +900,14 @@ static grpc_error *parse_lithdr_incidx_v(grpc_exec_ctx *exec_ctx, } /* finish a literal header without incremental indexing */ -static grpc_error *finish_lithdr_notidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_notidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { grpc_mdelem md = grpc_chttp2_hptbl_lookup(&p->table, p->index); GPR_ASSERT(!GRPC_MDISNULL(md)); /* handled in string parsing */ GRPC_STATS_INC_HPACK_RECV_LITHDR_NOTIDX(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, grpc_slice_ref_internal(GRPC_MDKEY(md)), take_string(exec_ctx, p, &p->value, false)), @@ -917,12 +917,12 @@ static grpc_error *finish_lithdr_notidx(grpc_exec_ctx *exec_ctx, } /* finish a literal header without incremental indexing with index = 0 */ -static grpc_error *finish_lithdr_notidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_notidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { GRPC_STATS_INC_HPACK_RECV_LITHDR_NOTIDX_V(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, take_string(exec_ctx, p, &p->key, true), take_string(exec_ctx, p, &p->value, false)), @@ -932,9 +932,9 @@ static grpc_error *finish_lithdr_notidx_v(grpc_exec_ctx *exec_ctx, } /* parse a literal header without incremental indexing; index < 15 */ -static grpc_error *parse_lithdr_notidx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_lithdr_notidx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_value_string_with_indexed_key, finish_lithdr_notidx}; p->dynamic_table_update_allowed = 0; @@ -944,10 +944,10 @@ static grpc_error *parse_lithdr_notidx(grpc_exec_ctx *exec_ctx, } /* parse a literal header without incremental indexing; index >= 15 */ -static grpc_error *parse_lithdr_notidx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_notidx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_string_prefix, parse_value_string_with_indexed_key, finish_lithdr_notidx}; @@ -959,10 +959,10 @@ static grpc_error *parse_lithdr_notidx_x(grpc_exec_ctx *exec_ctx, } /* parse a literal header without incremental indexing; index == 0 */ -static grpc_error *parse_lithdr_notidx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_notidx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_key_string, parse_string_prefix, parse_value_string_with_literal_key, finish_lithdr_notidx_v}; @@ -972,14 +972,14 @@ static grpc_error *parse_lithdr_notidx_v(grpc_exec_ctx *exec_ctx, } /* finish a literal header that is never indexed */ -static grpc_error *finish_lithdr_nvridx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_nvridx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { grpc_mdelem md = grpc_chttp2_hptbl_lookup(&p->table, p->index); GPR_ASSERT(!GRPC_MDISNULL(md)); /* handled in string parsing */ GRPC_STATS_INC_HPACK_RECV_LITHDR_NVRIDX(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, grpc_slice_ref_internal(GRPC_MDKEY(md)), take_string(exec_ctx, p, &p->value, false)), @@ -989,12 +989,12 @@ static grpc_error *finish_lithdr_nvridx(grpc_exec_ctx *exec_ctx, } /* finish a literal header that is never indexed with an extra value */ -static grpc_error *finish_lithdr_nvridx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_lithdr_nvridx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { GRPC_STATS_INC_HPACK_RECV_LITHDR_NVRIDX_V(exec_ctx); - grpc_error *err = on_hdr( + grpc_error* err = on_hdr( exec_ctx, p, grpc_mdelem_from_slices(exec_ctx, take_string(exec_ctx, p, &p->key, true), take_string(exec_ctx, p, &p->value, false)), @@ -1004,9 +1004,9 @@ static grpc_error *finish_lithdr_nvridx_v(grpc_exec_ctx *exec_ctx, } /* parse a literal header that is never indexed; index < 15 */ -static grpc_error *parse_lithdr_nvridx(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_lithdr_nvridx(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_value_string_with_indexed_key, finish_lithdr_nvridx}; p->dynamic_table_update_allowed = 0; @@ -1016,10 +1016,10 @@ static grpc_error *parse_lithdr_nvridx(grpc_exec_ctx *exec_ctx, } /* parse a literal header that is never indexed; index >= 15 */ -static grpc_error *parse_lithdr_nvridx_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_nvridx_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_string_prefix, parse_value_string_with_indexed_key, finish_lithdr_nvridx}; @@ -1031,10 +1031,10 @@ static grpc_error *parse_lithdr_nvridx_x(grpc_exec_ctx *exec_ctx, } /* parse a literal header that is never indexed; index == 0 */ -static grpc_error *parse_lithdr_nvridx_v(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_lithdr_nvridx_v(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { parse_key_string, parse_string_prefix, parse_value_string_with_literal_key, finish_lithdr_nvridx_v}; @@ -1044,22 +1044,22 @@ static grpc_error *parse_lithdr_nvridx_v(grpc_exec_ctx *exec_ctx, } /* finish parsing a max table size change */ -static grpc_error *finish_max_tbl_size(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { - if (GRPC_TRACER_ON(grpc_http_trace)) { +static grpc_error* finish_max_tbl_size(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_INFO, "MAX TABLE SIZE: %d", p->index); } - grpc_error *err = + grpc_error* err = grpc_chttp2_hptbl_set_current_table_size(exec_ctx, &p->table, p->index); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); return parse_begin(exec_ctx, p, cur, end); } /* parse a max table size change, max size < 15 */ -static grpc_error *parse_max_tbl_size(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_max_tbl_size(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (p->dynamic_table_update_allowed == 0) { return parse_error( exec_ctx, p, cur, end, @@ -1072,10 +1072,10 @@ static grpc_error *parse_max_tbl_size(grpc_exec_ctx *exec_ctx, } /* parse a max table size change, max size >= 15 */ -static grpc_error *parse_max_tbl_size_x(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_max_tbl_size_x(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, + const uint8_t* end) { static const grpc_chttp2_hpack_parser_state and_then[] = { finish_max_tbl_size}; if (p->dynamic_table_update_allowed == 0) { @@ -1092,9 +1092,9 @@ static grpc_error *parse_max_tbl_size_x(grpc_exec_ctx *exec_ctx, } /* a parse error: jam the parse state into parse_error, and return error */ -static grpc_error *parse_error(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end, grpc_error *err) { +static grpc_error* parse_error(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end, grpc_error* err) { GPR_ASSERT(err != GRPC_ERROR_NONE); if (p->last_error == GRPC_ERROR_NONE) { p->last_error = GRPC_ERROR_REF(err); @@ -1103,28 +1103,28 @@ static grpc_error *parse_error(grpc_exec_ctx *exec_ctx, return err; } -static grpc_error *still_parse_error(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* still_parse_error(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { return GRPC_ERROR_REF(p->last_error); } -static grpc_error *parse_illegal_op(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_illegal_op(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { GPR_ASSERT(cur != end); - char *msg; + char* msg; gpr_asprintf(&msg, "Illegal hpack op code %d", *cur); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return parse_error(exec_ctx, p, cur, end, err); } /* parse the 1st byte of a varint into p->parsing.value no overflow is possible */ -static grpc_error *parse_value0(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value0(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { if (cur == end) { p->state = parse_value0; return GRPC_ERROR_NONE; @@ -1141,9 +1141,9 @@ static grpc_error *parse_value0(grpc_exec_ctx *exec_ctx, /* parse the 2nd byte of a varint into p->parsing.value no overflow is possible */ -static grpc_error *parse_value1(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value1(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { if (cur == end) { p->state = parse_value1; return GRPC_ERROR_NONE; @@ -1160,9 +1160,9 @@ static grpc_error *parse_value1(grpc_exec_ctx *exec_ctx, /* parse the 3rd byte of a varint into p->parsing.value no overflow is possible */ -static grpc_error *parse_value2(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value2(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { if (cur == end) { p->state = parse_value2; return GRPC_ERROR_NONE; @@ -1179,9 +1179,9 @@ static grpc_error *parse_value2(grpc_exec_ctx *exec_ctx, /* parse the 4th byte of a varint into p->parsing.value no overflow is possible */ -static grpc_error *parse_value3(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value3(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { if (cur == end) { p->state = parse_value3; return GRPC_ERROR_NONE; @@ -1198,13 +1198,13 @@ static grpc_error *parse_value3(grpc_exec_ctx *exec_ctx, /* parse the 5th byte of a varint into p->parsing.value depending on the byte, we may overflow, and care must be taken */ -static grpc_error *parse_value4(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value4(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { uint8_t c; uint32_t cur_value; uint32_t add_value; - char *msg; + char* msg; if (cur == end) { p->state = parse_value4; @@ -1235,7 +1235,7 @@ error: "integer overflow in hpack integer decoding: have 0x%08x, " "got byte 0x%02x on byte 5", *p->parsing.value, *cur); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return parse_error(exec_ctx, p, cur, end, err); } @@ -1243,9 +1243,9 @@ error: /* parse any trailing bytes in a varint: it's possible to append an arbitrary number of 0x80's and not affect the value - a zero will terminate - and anything else will overflow */ -static grpc_error *parse_value5up(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_value5up(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { while (cur != end && *cur == 0x80) { ++cur; } @@ -1259,20 +1259,20 @@ static grpc_error *parse_value5up(grpc_exec_ctx *exec_ctx, return parse_next(exec_ctx, p, cur + 1, end); } - char *msg; + char* msg; gpr_asprintf(&msg, "integer overflow in hpack integer decoding: have 0x%08x, " "got byte 0x%02x sometime after byte 5", *p->parsing.value, *cur); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return parse_error(exec_ctx, p, cur, end, err); } /* parse a string prefix */ -static grpc_error *parse_string_prefix(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_string_prefix(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (cur == end) { p->state = parse_string_prefix; return GRPC_ERROR_NONE; @@ -1289,24 +1289,24 @@ static grpc_error *parse_string_prefix(grpc_exec_ctx *exec_ctx, } /* append some bytes to a string */ -static void append_bytes(grpc_chttp2_hpack_parser_string *str, - const uint8_t *data, size_t length) { +static void append_bytes(grpc_chttp2_hpack_parser_string* str, + const uint8_t* data, size_t length) { if (length == 0) return; if (length + str->data.copied.length > str->data.copied.capacity) { GPR_ASSERT(str->data.copied.length + length <= UINT32_MAX); str->data.copied.capacity = (uint32_t)(str->data.copied.length + length); str->data.copied.str = - (char *)gpr_realloc(str->data.copied.str, str->data.copied.capacity); + (char*)gpr_realloc(str->data.copied.str, str->data.copied.capacity); } memcpy(str->data.copied.str + str->data.copied.length, data, length); GPR_ASSERT(length <= UINT32_MAX - str->data.copied.length); str->data.copied.length += (uint32_t)length; } -static grpc_error *append_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { - grpc_chttp2_hpack_parser_string *str = p->parsing.str; +static grpc_error* append_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { + grpc_chttp2_hpack_parser_string* str = p->parsing.str; uint32_t bits; uint8_t decoded[3]; switch ((binary_state)p->binary) { @@ -1403,12 +1403,12 @@ static grpc_error *append_string(grpc_exec_ctx *exec_ctx, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Should never reach here"))); } -static grpc_error *finish_str(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* finish_str(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { uint8_t decoded[2]; uint32_t bits; - grpc_chttp2_hpack_parser_string *str = p->parsing.str; + grpc_chttp2_hpack_parser_string* str = p->parsing.str; switch ((binary_state)p->binary) { case NOT_BINARY: break; @@ -1423,10 +1423,10 @@ static grpc_error *finish_str(grpc_exec_ctx *exec_ctx, case B64_BYTE2: bits = p->base64_buffer; if (bits & 0xffff) { - char *msg; + char* msg; gpr_asprintf(&msg, "trailing bits in base64 encoding: 0x%04x", bits & 0xffff); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return parse_error(exec_ctx, p, cur, end, err); } @@ -1436,10 +1436,10 @@ static grpc_error *finish_str(grpc_exec_ctx *exec_ctx, case B64_BYTE3: bits = p->base64_buffer; if (bits & 0xff) { - char *msg; + char* msg; gpr_asprintf(&msg, "trailing bits in base64 encoding: 0x%02x", bits & 0xff); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return parse_error(exec_ctx, p, cur, end, err); } @@ -1452,14 +1452,14 @@ static grpc_error *finish_str(grpc_exec_ctx *exec_ctx, } /* decode a nibble from a huffman encoded stream */ -static grpc_error *huff_nibble(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, uint8_t nibble) { +static grpc_error* huff_nibble(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, uint8_t nibble) { int16_t emit = emit_sub_tbl[16 * emit_tbl[p->huff_state] + nibble]; int16_t next = next_sub_tbl[16 * next_tbl[p->huff_state] + nibble]; if (emit != -1) { if (emit >= 0 && emit < 256) { uint8_t c = (uint8_t)emit; - grpc_error *err = append_string(exec_ctx, p, &c, (&c) + 1); + grpc_error* err = append_string(exec_ctx, p, &c, (&c) + 1); if (err != GRPC_ERROR_NONE) return err; } else { assert(emit == 256); @@ -1470,11 +1470,11 @@ static grpc_error *huff_nibble(grpc_exec_ctx *exec_ctx, } /* decode full bytes from a huffman encoded stream */ -static grpc_error *add_huff_bytes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* add_huff_bytes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { for (; cur != end; ++cur) { - grpc_error *err = huff_nibble(exec_ctx, p, *cur >> 4); + grpc_error* err = huff_nibble(exec_ctx, p, *cur >> 4); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); err = huff_nibble(exec_ctx, p, *cur & 0xf); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); @@ -1484,9 +1484,9 @@ static grpc_error *add_huff_bytes(grpc_exec_ctx *exec_ctx, /* decode some string bytes based on the current decoding mode (huffman or not) */ -static grpc_error *add_str_bytes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* add_str_bytes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { if (p->huff) { return add_huff_bytes(exec_ctx, p, cur, end); } else { @@ -1495,19 +1495,19 @@ static grpc_error *add_str_bytes(grpc_exec_ctx *exec_ctx, } /* parse a string - tries to do large chunks at a time */ -static grpc_error *parse_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { size_t remaining = p->strlen - p->strgot; size_t given = (size_t)(end - cur); if (remaining <= given) { - grpc_error *err = add_str_bytes(exec_ctx, p, cur, cur + remaining); + grpc_error* err = add_str_bytes(exec_ctx, p, cur, cur + remaining); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); err = finish_str(exec_ctx, p, cur + remaining, end); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); return parse_next(exec_ctx, p, cur + remaining, end); } else { - grpc_error *err = add_str_bytes(exec_ctx, p, cur, cur + given); + grpc_error* err = add_str_bytes(exec_ctx, p, cur, cur + given); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); GPR_ASSERT(given <= UINT32_MAX - p->strgot); p->strgot += (uint32_t)given; @@ -1517,17 +1517,17 @@ static grpc_error *parse_string(grpc_exec_ctx *exec_ctx, } /* begin parsing a string - performs setup, calls parse_string */ -static grpc_error *begin_parse_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end, +static grpc_error* begin_parse_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end, uint8_t binary, - grpc_chttp2_hpack_parser_string *str) { + grpc_chttp2_hpack_parser_string* str) { if (!p->huff && binary == NOT_BINARY && (end - cur) >= (intptr_t)p->strlen && - p->current_slice_refcount != NULL) { + p->current_slice_refcount != nullptr) { GRPC_STATS_INC_HPACK_RECV_UNCOMPRESSED(exec_ctx); str->copied = false; str->data.referenced.refcount = p->current_slice_refcount; - str->data.referenced.data.refcounted.bytes = (uint8_t *)cur; + str->data.referenced.data.refcounted.bytes = (uint8_t*)cur; str->data.referenced.data.refcounted.length = p->strlen; grpc_slice_ref_internal(str->data.referenced); return parse_next(exec_ctx, p, cur + p->strlen, end); @@ -1556,23 +1556,23 @@ static grpc_error *begin_parse_string(grpc_exec_ctx *exec_ctx, } /* parse the key string */ -static grpc_error *parse_key_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end) { +static grpc_error* parse_key_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end) { return begin_parse_string(exec_ctx, p, cur, end, NOT_BINARY, &p->key); } /* check if a key represents a binary header or not */ -static bool is_binary_literal_header(grpc_chttp2_hpack_parser *p) { +static bool is_binary_literal_header(grpc_chttp2_hpack_parser* p) { return grpc_is_binary_header( p->key.copied ? grpc_slice_from_static_buffer(p->key.data.copied.str, p->key.data.copied.length) : p->key.data.referenced); } -static grpc_error *is_binary_indexed_header(grpc_chttp2_hpack_parser *p, - bool *is) { +static grpc_error* is_binary_indexed_header(grpc_chttp2_hpack_parser* p, + bool* is) { grpc_mdelem elem = grpc_chttp2_hptbl_lookup(&p->table, p->index); if (GRPC_MDISNULL(elem)) { return grpc_error_set_int( @@ -1586,42 +1586,42 @@ static grpc_error *is_binary_indexed_header(grpc_chttp2_hpack_parser *p, } /* parse the value string */ -static grpc_error *parse_value_string(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, - const uint8_t *cur, const uint8_t *end, +static grpc_error* parse_value_string(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, + const uint8_t* cur, const uint8_t* end, bool is_binary) { return begin_parse_string(exec_ctx, p, cur, end, is_binary ? BINARY_BEGIN : NOT_BINARY, &p->value); } -static grpc_error *parse_value_string_with_indexed_key( - grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value_string_with_indexed_key( + grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { bool is_binary = false; - grpc_error *err = is_binary_indexed_header(p, &is_binary); + grpc_error* err = is_binary_indexed_header(p, &is_binary); if (err != GRPC_ERROR_NONE) return parse_error(exec_ctx, p, cur, end, err); return parse_value_string(exec_ctx, p, cur, end, is_binary); } -static grpc_error *parse_value_string_with_literal_key( - grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, const uint8_t *cur, - const uint8_t *end) { +static grpc_error* parse_value_string_with_literal_key( + grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, const uint8_t* cur, + const uint8_t* end) { return parse_value_string(exec_ctx, p, cur, end, is_binary_literal_header(p)); } /* PUBLIC INTERFACE */ -void grpc_chttp2_hpack_parser_init(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p) { - p->on_header = NULL; - p->on_header_user_data = NULL; +void grpc_chttp2_hpack_parser_init(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p) { + p->on_header = nullptr; + p->on_header_user_data = nullptr; p->state = parse_begin; p->key.data.referenced = grpc_empty_slice(); - p->key.data.copied.str = NULL; + p->key.data.copied.str = nullptr; p->key.data.copied.capacity = 0; p->key.data.copied.length = 0; p->value.data.referenced = grpc_empty_slice(); - p->value.data.copied.str = NULL; + p->value.data.copied.str = nullptr; p->value.data.copied.capacity = 0; p->value.data.copied.length = 0; p->dynamic_table_update_allowed = 2; @@ -1629,13 +1629,13 @@ void grpc_chttp2_hpack_parser_init(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl_init(exec_ctx, &p->table); } -void grpc_chttp2_hpack_parser_set_has_priority(grpc_chttp2_hpack_parser *p) { +void grpc_chttp2_hpack_parser_set_has_priority(grpc_chttp2_hpack_parser* p) { p->after_prioritization = p->state; p->state = parse_stream_dep0; } -void grpc_chttp2_hpack_parser_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p) { +void grpc_chttp2_hpack_parser_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p) { grpc_chttp2_hptbl_destroy(exec_ctx, &p->table); GRPC_ERROR_UNREF(p->last_error); grpc_slice_unref_internal(exec_ctx, p->key.data.referenced); @@ -1644,36 +1644,36 @@ void grpc_chttp2_hpack_parser_destroy(grpc_exec_ctx *exec_ctx, gpr_free(p->value.data.copied.str); } -grpc_error *grpc_chttp2_hpack_parser_parse(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, +grpc_error* grpc_chttp2_hpack_parser_parse(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, grpc_slice slice) { /* max number of bytes to parse at a time... limits call stack depth on * compilers without TCO */ #define MAX_PARSE_LENGTH 1024 p->current_slice_refcount = slice.refcount; - uint8_t *start = GRPC_SLICE_START_PTR(slice); - uint8_t *end = GRPC_SLICE_END_PTR(slice); - grpc_error *error = GRPC_ERROR_NONE; + uint8_t* start = GRPC_SLICE_START_PTR(slice); + uint8_t* end = GRPC_SLICE_END_PTR(slice); + grpc_error* error = GRPC_ERROR_NONE; while (start != end && error == GRPC_ERROR_NONE) { - uint8_t *target = start + GPR_MIN(MAX_PARSE_LENGTH, end - start); + uint8_t* target = start + GPR_MIN(MAX_PARSE_LENGTH, end - start); error = p->state(exec_ctx, p, start, target); start = target; } - p->current_slice_refcount = NULL; + p->current_slice_refcount = nullptr; return error; } -typedef void (*maybe_complete_func_type)(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s); +typedef void (*maybe_complete_func_type)(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s); static const maybe_complete_func_type maybe_complete_funcs[] = { grpc_chttp2_maybe_complete_recv_initial_metadata, grpc_chttp2_maybe_complete_recv_trailing_metadata}; -static void force_client_rst_stream(grpc_exec_ctx *exec_ctx, void *sp, - grpc_error *error) { - grpc_chttp2_stream *s = (grpc_chttp2_stream *)sp; - grpc_chttp2_transport *t = s->t; +static void force_client_rst_stream(grpc_exec_ctx* exec_ctx, void* sp, + grpc_error* error) { + grpc_chttp2_stream* s = (grpc_chttp2_stream*)sp; + grpc_chttp2_transport* t = s->t; if (!s->write_closed) { grpc_slice_buffer_add( &t->qbuf, grpc_chttp2_rst_stream_create(s->id, GRPC_HTTP2_NO_ERROR, @@ -1685,11 +1685,11 @@ static void force_client_rst_stream(grpc_exec_ctx *exec_ctx, void *sp, GRPC_CHTTP2_STREAM_UNREF(exec_ctx, s, "final_rst"); } -static void parse_stream_compression_md(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, - grpc_metadata_batch *initial_metadata) { - if (initial_metadata->idx.named.content_encoding == NULL || +static void parse_stream_compression_md(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, + grpc_metadata_batch* initial_metadata) { + if (initial_metadata->idx.named.content_encoding == nullptr || grpc_stream_compression_method_parse( GRPC_MDVALUE(initial_metadata->idx.named.content_encoding->md), false, &s->stream_decompression_method) == 0) { @@ -1698,17 +1698,17 @@ static void parse_stream_compression_md(grpc_exec_ctx *exec_ctx, } } -grpc_error *grpc_chttp2_header_parser_parse(grpc_exec_ctx *exec_ctx, - void *hpack_parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_header_parser_parse(grpc_exec_ctx* exec_ctx, + void* hpack_parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last) { - grpc_chttp2_hpack_parser *parser = (grpc_chttp2_hpack_parser *)hpack_parser; + grpc_chttp2_hpack_parser* parser = (grpc_chttp2_hpack_parser*)hpack_parser; GPR_TIMER_BEGIN("grpc_chttp2_hpack_parser_parse", 0); - if (s != NULL) { + if (s != nullptr) { s->stats.incoming.header_bytes += GRPC_SLICE_LENGTH(slice); } - grpc_error *error = grpc_chttp2_hpack_parser_parse(exec_ctx, parser, slice); + grpc_error* error = grpc_chttp2_hpack_parser_parse(exec_ctx, parser, slice); if (error != GRPC_ERROR_NONE) { GPR_TIMER_END("grpc_chttp2_hpack_parser_parse", 0); return error; @@ -1721,7 +1721,7 @@ grpc_error *grpc_chttp2_header_parser_parse(grpc_exec_ctx *exec_ctx, } /* need to check for null stream: this can occur if we receive an invalid stream id on a header */ - if (s != NULL) { + if (s != nullptr) { if (parser->is_boundary) { if (s->header_frames_received == GPR_ARRAY_SIZE(s->metadata_buffer)) { GPR_TIMER_END("grpc_chttp2_hpack_parser_parse", 0); @@ -1756,8 +1756,8 @@ grpc_error *grpc_chttp2_header_parser_parse(grpc_exec_ctx *exec_ctx, GRPC_ERROR_NONE); } } - parser->on_header = NULL; - parser->on_header_user_data = NULL; + parser->on_header = nullptr; + parser->on_header_user_data = nullptr; parser->is_boundary = 0xde; parser->is_eof = 0xde; parser->dynamic_table_update_allowed = 2; diff --git a/src/core/ext/transport/chttp2/transport/hpack_parser.h b/src/core/ext/transport/chttp2/transport/hpack_parser.h index 52014175a0..838c482e4a 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_parser.h +++ b/src/core/ext/transport/chttp2/transport/hpack_parser.h @@ -33,16 +33,16 @@ extern "C" { typedef struct grpc_chttp2_hpack_parser grpc_chttp2_hpack_parser; -typedef grpc_error *(*grpc_chttp2_hpack_parser_state)( - grpc_exec_ctx *exec_ctx, grpc_chttp2_hpack_parser *p, const uint8_t *beg, - const uint8_t *end); +typedef grpc_error* (*grpc_chttp2_hpack_parser_state)( + grpc_exec_ctx* exec_ctx, grpc_chttp2_hpack_parser* p, const uint8_t* beg, + const uint8_t* end); typedef struct { bool copied; struct { grpc_slice referenced; struct { - char *str; + char* str; uint32_t length; uint32_t capacity; } copied; @@ -51,23 +51,23 @@ typedef struct { struct grpc_chttp2_hpack_parser { /* user specified callback for each header output */ - void (*on_header)(grpc_exec_ctx *exec_ctx, void *user_data, grpc_mdelem md); - void *on_header_user_data; + void (*on_header)(grpc_exec_ctx* exec_ctx, void* user_data, grpc_mdelem md); + void* on_header_user_data; - grpc_error *last_error; + grpc_error* last_error; /* current parse state - or a function that implements it */ grpc_chttp2_hpack_parser_state state; /* future states dependent on the opening op code */ - const grpc_chttp2_hpack_parser_state *next_state; + const grpc_chttp2_hpack_parser_state* next_state; /* what to do after skipping prioritization data */ grpc_chttp2_hpack_parser_state after_prioritization; /* the refcount of the slice that we're currently parsing */ - grpc_slice_refcount *current_slice_refcount; + grpc_slice_refcount* current_slice_refcount; /* the value we're currently parsing */ union { - uint32_t *value; - grpc_chttp2_hpack_parser_string *str; + uint32_t* value; + grpc_chttp2_hpack_parser_string* str; } parsing; /* string parameters for each chunk */ grpc_chttp2_hpack_parser_string key; @@ -96,23 +96,23 @@ struct grpc_chttp2_hpack_parser { grpc_chttp2_hptbl table; }; -void grpc_chttp2_hpack_parser_init(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p); -void grpc_chttp2_hpack_parser_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p); +void grpc_chttp2_hpack_parser_init(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p); +void grpc_chttp2_hpack_parser_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p); -void grpc_chttp2_hpack_parser_set_has_priority(grpc_chttp2_hpack_parser *p); +void grpc_chttp2_hpack_parser_set_has_priority(grpc_chttp2_hpack_parser* p); -grpc_error *grpc_chttp2_hpack_parser_parse(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hpack_parser *p, +grpc_error* grpc_chttp2_hpack_parser_parse(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hpack_parser* p, grpc_slice slice); /* wraps grpc_chttp2_hpack_parser_parse to provide a frame level parser for the transport */ -grpc_error *grpc_chttp2_header_parser_parse(grpc_exec_ctx *exec_ctx, - void *hpack_parser, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +grpc_error* grpc_chttp2_header_parser_parse(grpc_exec_ctx* exec_ctx, + void* hpack_parser, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_slice slice, int is_last); #ifdef __cplusplus diff --git a/src/core/ext/transport/chttp2/transport/hpack_table.cc b/src/core/ext/transport/chttp2/transport/hpack_table.cc index 82c284b36e..75b83b80b6 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_table.cc +++ b/src/core/ext/transport/chttp2/transport/hpack_table.cc @@ -28,14 +28,14 @@ #include "src/core/lib/debug/trace.h" #include "src/core/lib/support/murmur_hash.h" -extern "C" grpc_tracer_flag grpc_http_trace; +extern grpc_core::TraceFlag grpc_http_trace; static struct { - const char *key; - const char *value; + const char* key; + const char* value; } static_table[] = { /* 0: */ - {NULL, NULL}, + {nullptr, nullptr}, /* 1: */ {":authority", ""}, /* 2: */ @@ -165,7 +165,7 @@ static uint32_t entries_for_bytes(uint32_t bytes) { GRPC_CHTTP2_HPACK_ENTRY_OVERHEAD; } -void grpc_chttp2_hptbl_init(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl) { +void grpc_chttp2_hptbl_init(grpc_exec_ctx* exec_ctx, grpc_chttp2_hptbl* tbl) { size_t i; memset(tbl, 0, sizeof(*tbl)); @@ -173,7 +173,7 @@ void grpc_chttp2_hptbl_init(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl) { GRPC_CHTTP2_INITIAL_HPACK_TABLE_SIZE; tbl->max_entries = tbl->cap_entries = entries_for_bytes(tbl->current_table_bytes); - tbl->ents = (grpc_mdelem *)gpr_malloc(sizeof(*tbl->ents) * tbl->cap_entries); + tbl->ents = (grpc_mdelem*)gpr_malloc(sizeof(*tbl->ents) * tbl->cap_entries); memset(tbl->ents, 0, sizeof(*tbl->ents) * tbl->cap_entries); for (i = 1; i <= GRPC_CHTTP2_LAST_STATIC_ENTRY; i++) { tbl->static_ents[i - 1] = grpc_mdelem_from_slices( @@ -184,8 +184,8 @@ void grpc_chttp2_hptbl_init(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl) { } } -void grpc_chttp2_hptbl_destroy(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl) { +void grpc_chttp2_hptbl_destroy(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl) { size_t i; for (i = 0; i < GRPC_CHTTP2_LAST_STATIC_ENTRY; i++) { GRPC_MDELEM_UNREF(exec_ctx, tbl->static_ents[i]); @@ -197,7 +197,7 @@ void grpc_chttp2_hptbl_destroy(grpc_exec_ctx *exec_ctx, gpr_free(tbl->ents); } -grpc_mdelem grpc_chttp2_hptbl_lookup(const grpc_chttp2_hptbl *tbl, +grpc_mdelem grpc_chttp2_hptbl_lookup(const grpc_chttp2_hptbl* tbl, uint32_t tbl_index) { /* Static table comes first, just return an entry from it */ if (tbl_index <= GRPC_CHTTP2_LAST_STATIC_ENTRY) { @@ -215,7 +215,7 @@ grpc_mdelem grpc_chttp2_hptbl_lookup(const grpc_chttp2_hptbl *tbl, } /* Evict one element from the table */ -static void evict1(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl) { +static void evict1(grpc_exec_ctx* exec_ctx, grpc_chttp2_hptbl* tbl) { grpc_mdelem first_ent = tbl->ents[tbl->first_ent]; size_t elem_bytes = GRPC_SLICE_LENGTH(GRPC_MDKEY(first_ent)) + GRPC_SLICE_LENGTH(GRPC_MDVALUE(first_ent)) + @@ -227,8 +227,8 @@ static void evict1(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl) { GRPC_MDELEM_UNREF(exec_ctx, first_ent); } -static void rebuild_ents(grpc_chttp2_hptbl *tbl, uint32_t new_cap) { - grpc_mdelem *ents = (grpc_mdelem *)gpr_malloc(sizeof(*ents) * new_cap); +static void rebuild_ents(grpc_chttp2_hptbl* tbl, uint32_t new_cap) { + grpc_mdelem* ents = (grpc_mdelem*)gpr_malloc(sizeof(*ents) * new_cap); uint32_t i; for (i = 0; i < tbl->num_ents; i++) { @@ -240,13 +240,13 @@ static void rebuild_ents(grpc_chttp2_hptbl *tbl, uint32_t new_cap) { tbl->first_ent = 0; } -void grpc_chttp2_hptbl_set_max_bytes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, +void grpc_chttp2_hptbl_set_max_bytes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, uint32_t max_bytes) { if (tbl->max_bytes == max_bytes) { return; } - if (GRPC_TRACER_ON(grpc_http_trace)) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "Update hpack parser max size to %d", max_bytes); } while (tbl->mem_used > max_bytes) { @@ -255,22 +255,22 @@ void grpc_chttp2_hptbl_set_max_bytes(grpc_exec_ctx *exec_ctx, tbl->max_bytes = max_bytes; } -grpc_error *grpc_chttp2_hptbl_set_current_table_size(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, +grpc_error* grpc_chttp2_hptbl_set_current_table_size(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, uint32_t bytes) { if (tbl->current_table_bytes == bytes) { return GRPC_ERROR_NONE; } if (bytes > tbl->max_bytes) { - char *msg; + char* msg; gpr_asprintf(&msg, "Attempt to make hpack table %d bytes when max is %d bytes", bytes, tbl->max_bytes); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } - if (GRPC_TRACER_ON(grpc_http_trace)) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_DEBUG, "Update hpack parser table size to %d", bytes); } while (tbl->mem_used > bytes) { @@ -289,21 +289,21 @@ grpc_error *grpc_chttp2_hptbl_set_current_table_size(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -grpc_error *grpc_chttp2_hptbl_add(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, grpc_mdelem md) { +grpc_error* grpc_chttp2_hptbl_add(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, grpc_mdelem md) { /* determine how many bytes of buffer this entry represents */ size_t elem_bytes = GRPC_SLICE_LENGTH(GRPC_MDKEY(md)) + GRPC_SLICE_LENGTH(GRPC_MDVALUE(md)) + GRPC_CHTTP2_HPACK_ENTRY_OVERHEAD; if (tbl->current_table_bytes > tbl->max_bytes) { - char *msg; + char* msg; gpr_asprintf( &msg, "HPACK max table size reduced to %d but not reflected by hpack " "stream (still at %d)", tbl->max_bytes, tbl->current_table_bytes); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } @@ -341,7 +341,7 @@ grpc_error *grpc_chttp2_hptbl_add(grpc_exec_ctx *exec_ctx, } grpc_chttp2_hptbl_find_result grpc_chttp2_hptbl_find( - const grpc_chttp2_hptbl *tbl, grpc_mdelem md) { + const grpc_chttp2_hptbl* tbl, grpc_mdelem md) { grpc_chttp2_hptbl_find_result r = {0, 0}; uint32_t i; diff --git a/src/core/ext/transport/chttp2/transport/hpack_table.h b/src/core/ext/transport/chttp2/transport/hpack_table.h index a3ce2730a8..ddc8888f86 100644 --- a/src/core/ext/transport/chttp2/transport/hpack_table.h +++ b/src/core/ext/transport/chttp2/transport/hpack_table.h @@ -68,26 +68,26 @@ typedef struct { /* a circular buffer of headers - this is stored in the opposite order to what hpack specifies, in order to simplify table management a little... meaning lookups need to SUBTRACT from the end position */ - grpc_mdelem *ents; + grpc_mdelem* ents; grpc_mdelem static_ents[GRPC_CHTTP2_LAST_STATIC_ENTRY]; } grpc_chttp2_hptbl; /* initialize a hpack table */ -void grpc_chttp2_hptbl_init(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl); -void grpc_chttp2_hptbl_destroy(grpc_exec_ctx *exec_ctx, grpc_chttp2_hptbl *tbl); -void grpc_chttp2_hptbl_set_max_bytes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, +void grpc_chttp2_hptbl_init(grpc_exec_ctx* exec_ctx, grpc_chttp2_hptbl* tbl); +void grpc_chttp2_hptbl_destroy(grpc_exec_ctx* exec_ctx, grpc_chttp2_hptbl* tbl); +void grpc_chttp2_hptbl_set_max_bytes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, uint32_t max_bytes); -grpc_error *grpc_chttp2_hptbl_set_current_table_size(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, +grpc_error* grpc_chttp2_hptbl_set_current_table_size(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, uint32_t bytes); /* lookup a table entry based on its hpack index */ -grpc_mdelem grpc_chttp2_hptbl_lookup(const grpc_chttp2_hptbl *tbl, +grpc_mdelem grpc_chttp2_hptbl_lookup(const grpc_chttp2_hptbl* tbl, uint32_t index); /* add a table entry to the index */ -grpc_error *grpc_chttp2_hptbl_add(grpc_exec_ctx *exec_ctx, - grpc_chttp2_hptbl *tbl, +grpc_error* grpc_chttp2_hptbl_add(grpc_exec_ctx* exec_ctx, + grpc_chttp2_hptbl* tbl, grpc_mdelem md) GRPC_MUST_USE_RESULT; /* Find a key/value pair in the table... returns the index in the table of the most similar entry, or 0 if the value was not found */ @@ -96,7 +96,7 @@ typedef struct { int has_value; } grpc_chttp2_hptbl_find_result; grpc_chttp2_hptbl_find_result grpc_chttp2_hptbl_find( - const grpc_chttp2_hptbl *tbl, grpc_mdelem md); + const grpc_chttp2_hptbl* tbl, grpc_mdelem md); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/http2_settings.cc b/src/core/ext/transport/chttp2/transport/http2_settings.cc index 46b7c0c49c..0aab864400 100644 --- a/src/core/ext/transport/chttp2/transport/http2_settings.cc +++ b/src/core/ext/transport/chttp2/transport/http2_settings.cc @@ -25,7 +25,7 @@ const uint16_t grpc_setting_id_to_wire_id[] = {1, 2, 3, 4, 5, 6, 65027}; -bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out) { +bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id* out) { uint32_t i = wire_id - 1; uint32_t x = i % 256; uint32_t y = i / 256; diff --git a/src/core/ext/transport/chttp2/transport/http2_settings.h b/src/core/ext/transport/chttp2/transport/http2_settings.h index 0f76106dce..86069b498b 100644 --- a/src/core/ext/transport/chttp2/transport/http2_settings.h +++ b/src/core/ext/transport/chttp2/transport/http2_settings.h @@ -41,7 +41,7 @@ extern "C" { #endif extern const uint16_t grpc_setting_id_to_wire_id[]; -bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out); +bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id* out); typedef enum { GRPC_CHTTP2_CLAMP_INVALID_VALUE, @@ -49,7 +49,7 @@ typedef enum { } grpc_chttp2_invalid_value_behavior; typedef struct { - const char *name; + const char* name; uint32_t default_value; uint32_t min_value; uint32_t max_value; diff --git a/src/core/ext/transport/chttp2/transport/incoming_metadata.cc b/src/core/ext/transport/chttp2/transport/incoming_metadata.cc index 187ce0ea87..4461f8c12c 100644 --- a/src/core/ext/transport/chttp2/transport/incoming_metadata.cc +++ b/src/core/ext/transport/chttp2/transport/incoming_metadata.cc @@ -26,31 +26,32 @@ #include <grpc/support/log.h> void grpc_chttp2_incoming_metadata_buffer_init( - grpc_chttp2_incoming_metadata_buffer *buffer, gpr_arena *arena) { + grpc_chttp2_incoming_metadata_buffer* buffer, gpr_arena* arena) { buffer->arena = arena; grpc_metadata_batch_init(&buffer->batch); buffer->batch.deadline = GRPC_MILLIS_INF_FUTURE; } void grpc_chttp2_incoming_metadata_buffer_destroy( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer) { + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer) { grpc_metadata_batch_destroy(exec_ctx, &buffer->batch); } -grpc_error *grpc_chttp2_incoming_metadata_buffer_add( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, +grpc_error* grpc_chttp2_incoming_metadata_buffer_add( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) { buffer->size += GRPC_MDELEM_LENGTH(elem); return grpc_metadata_batch_add_tail( - exec_ctx, &buffer->batch, (grpc_linked_mdelem *)gpr_arena_alloc( - buffer->arena, sizeof(grpc_linked_mdelem)), + exec_ctx, &buffer->batch, + (grpc_linked_mdelem*)gpr_arena_alloc(buffer->arena, + sizeof(grpc_linked_mdelem)), elem); } -grpc_error *grpc_chttp2_incoming_metadata_buffer_replace_or_add( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, +grpc_error* grpc_chttp2_incoming_metadata_buffer_replace_or_add( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) { - for (grpc_linked_mdelem *l = buffer->batch.list.head; l != NULL; + for (grpc_linked_mdelem* l = buffer->batch.list.head; l != nullptr; l = l->next) { if (grpc_slice_eq(GRPC_MDKEY(l->md), GRPC_MDKEY(elem))) { GRPC_MDELEM_UNREF(exec_ctx, l->md); @@ -62,13 +63,13 @@ grpc_error *grpc_chttp2_incoming_metadata_buffer_replace_or_add( } void grpc_chttp2_incoming_metadata_buffer_set_deadline( - grpc_chttp2_incoming_metadata_buffer *buffer, grpc_millis deadline) { + grpc_chttp2_incoming_metadata_buffer* buffer, grpc_millis deadline) { buffer->batch.deadline = deadline; } void grpc_chttp2_incoming_metadata_buffer_publish( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, - grpc_metadata_batch *batch) { + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, + grpc_metadata_batch* batch) { *batch = buffer->batch; grpc_metadata_batch_init(&buffer->batch); } diff --git a/src/core/ext/transport/chttp2/transport/incoming_metadata.h b/src/core/ext/transport/chttp2/transport/incoming_metadata.h index a0e01f2c4d..7ccb4a0126 100644 --- a/src/core/ext/transport/chttp2/transport/incoming_metadata.h +++ b/src/core/ext/transport/chttp2/transport/incoming_metadata.h @@ -26,28 +26,28 @@ extern "C" { #endif typedef struct { - gpr_arena *arena; + gpr_arena* arena; grpc_metadata_batch batch; size_t size; // total size of metadata } grpc_chttp2_incoming_metadata_buffer; /** assumes everything initially zeroed */ void grpc_chttp2_incoming_metadata_buffer_init( - grpc_chttp2_incoming_metadata_buffer *buffer, gpr_arena *arena); + grpc_chttp2_incoming_metadata_buffer* buffer, gpr_arena* arena); void grpc_chttp2_incoming_metadata_buffer_destroy( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer); + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer); void grpc_chttp2_incoming_metadata_buffer_publish( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, - grpc_metadata_batch *batch); + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, + grpc_metadata_batch* batch); -grpc_error *grpc_chttp2_incoming_metadata_buffer_add( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, +grpc_error* grpc_chttp2_incoming_metadata_buffer_add( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) GRPC_MUST_USE_RESULT; -grpc_error *grpc_chttp2_incoming_metadata_buffer_replace_or_add( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_metadata_buffer *buffer, +grpc_error* grpc_chttp2_incoming_metadata_buffer_replace_or_add( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_metadata_buffer* buffer, grpc_mdelem elem) GRPC_MUST_USE_RESULT; void grpc_chttp2_incoming_metadata_buffer_set_deadline( - grpc_chttp2_incoming_metadata_buffer *buffer, grpc_millis deadline); + grpc_chttp2_incoming_metadata_buffer* buffer, grpc_millis deadline); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/internal.h b/src/core/ext/transport/chttp2/transport/internal.h index 9e0796e820..4555b7b025 100644 --- a/src/core/ext/transport/chttp2/transport/internal.h +++ b/src/core/ext/transport/chttp2/transport/internal.h @@ -100,7 +100,7 @@ typedef enum { GRPC_CHTTP2_INITIATE_WRITE_FORCE_RST_STREAM, } grpc_chttp2_initiate_write_reason; -const char *grpc_chttp2_initiate_write_reason_string( +const char* grpc_chttp2_initiate_write_reason_string( grpc_chttp2_initiate_write_reason reason); typedef struct { @@ -171,13 +171,13 @@ typedef enum { } grpc_chttp2_deframe_transport_state; typedef struct { - grpc_chttp2_stream *head; - grpc_chttp2_stream *tail; + grpc_chttp2_stream* head; + grpc_chttp2_stream* tail; } grpc_chttp2_stream_list; typedef struct { - grpc_chttp2_stream *next; - grpc_chttp2_stream *prev; + grpc_chttp2_stream* next; + grpc_chttp2_stream* prev; } grpc_chttp2_stream_link; /* We keep several sets of connection wide parameters */ @@ -201,8 +201,8 @@ typedef enum { typedef struct grpc_chttp2_write_cb { int64_t call_at_byte; - grpc_closure *closure; - struct grpc_chttp2_write_cb *next; + grpc_closure* closure; + struct grpc_chttp2_write_cb* next; } grpc_chttp2_write_cb; /* forward declared in frame_data.h */ @@ -210,8 +210,8 @@ struct grpc_chttp2_incoming_byte_stream { grpc_byte_stream base; gpr_refcount refs; - grpc_chttp2_transport *transport; /* immutable */ - grpc_chttp2_stream *stream; /* immutable */ + grpc_chttp2_transport* transport; /* immutable */ + grpc_chttp2_stream* stream; /* immutable */ /* Accessed only by transport thread when stream->pending_byte_stream == false * Accessed only by application thread when stream->pending_byte_stream == @@ -224,7 +224,7 @@ struct grpc_chttp2_incoming_byte_stream { struct { grpc_closure closure; size_t max_size_hint; - grpc_closure *on_complete; + grpc_closure* on_complete; } next_action; grpc_closure destroy_action; grpc_closure finished_action; @@ -240,10 +240,10 @@ typedef enum { struct grpc_chttp2_transport { grpc_transport base; /* must be first */ gpr_refcount refs; - grpc_endpoint *ep; - char *peer_string; + grpc_endpoint* ep; + char* peer_string; - grpc_combiner *combiner; + grpc_combiner* combiner; /** write execution state of the transport */ grpc_chttp2_write_state write_state; @@ -255,7 +255,7 @@ struct grpc_chttp2_transport { /** is the transport destroying itself? */ uint8_t destroying; /** has the upper layer closed the transport? */ - grpc_error *closed_with_error; + grpc_error* closed_with_error; /** is there a read request to the endpoint outstanding? */ uint8_t endpoint_reading; @@ -280,13 +280,13 @@ struct grpc_chttp2_transport { /** address to place a newly accepted stream - set and unset by grpc_chttp2_parsing_accept_stream; used by init_stream to publish the accepted server stream */ - grpc_chttp2_stream **accepting_stream; + grpc_chttp2_stream** accepting_stream; struct { /* accept stream callback */ - void (*accept_stream)(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_transport *transport, const void *server_data); - void *accept_stream_user_data; + void (*accept_stream)(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_transport* transport, const void* server_data); + void* accept_stream_user_data; /** connectivity tracking */ grpc_connectivity_state_tracker state_tracker; @@ -306,9 +306,10 @@ struct grpc_chttp2_transport { */ uint32_t write_buffer_size; - /** have we seen a goaway */ - bool seen_goaway; - /** have we sent a goaway */ + /** Set to a grpc_error object if a goaway frame is received. By default, set + * to GRPC_ERROR_NONE */ + grpc_error* goaway_error; + grpc_chttp2_sent_goaway_state sent_goaway_state; /** are the local settings dirty and need to be sent? */ @@ -337,7 +338,7 @@ struct grpc_chttp2_transport { /** ping acks */ size_t ping_ack_count; size_t ping_ack_capacity; - uint64_t *ping_acks; + uint64_t* ping_acks; grpc_chttp2_server_ping_recv_state ping_recv_state; /** parser for headers */ @@ -370,18 +371,13 @@ struct grpc_chttp2_transport { uint32_t incoming_stream_id; /* active parser */ - void *parser_data; - grpc_chttp2_stream *incoming_stream; - grpc_error *(*parser)(grpc_exec_ctx *exec_ctx, void *parser_user_data, - grpc_chttp2_transport *t, grpc_chttp2_stream *s, + void* parser_data; + grpc_chttp2_stream* incoming_stream; + grpc_error* (*parser)(grpc_exec_ctx* exec_ctx, void* parser_user_data, + grpc_chttp2_transport* t, grpc_chttp2_stream* s, grpc_slice slice, int is_last); - /* goaway data */ - grpc_status_code goaway_error; - uint32_t goaway_last_stream_index; - grpc_slice goaway_text; - - grpc_chttp2_write_cb *write_cb_pool; + grpc_chttp2_write_cb* write_cb_pool; /* bdp estimator */ grpc_closure next_bdp_ping_timer_expired_locked; @@ -390,7 +386,7 @@ struct grpc_chttp2_transport { /* if non-NULL, close the transport with this error when writes are finished */ - grpc_error *close_transport_on_writes_finished; + grpc_error* close_transport_on_writes_finished; /* a list of closures to run after writes are finished */ grpc_closure_list run_after_write; @@ -440,11 +436,11 @@ typedef enum { } grpc_published_metadata_method; struct grpc_chttp2_stream { - grpc_chttp2_transport *t; - grpc_stream_refcount *refcount; + grpc_chttp2_transport* t; + grpc_stream_refcount* refcount; grpc_closure destroy_stream; - grpc_closure *destroy_stream_arg; + grpc_closure* destroy_stream_arg; grpc_chttp2_stream_link links[STREAM_LIST_COUNT]; uint8_t included[STREAM_LIST_COUNT]; @@ -453,29 +449,29 @@ struct grpc_chttp2_stream { uint32_t id; /** things the upper layers would like to send */ - grpc_metadata_batch *send_initial_metadata; - grpc_closure *send_initial_metadata_finished; - grpc_metadata_batch *send_trailing_metadata; - grpc_closure *send_trailing_metadata_finished; + grpc_metadata_batch* send_initial_metadata; + grpc_closure* send_initial_metadata_finished; + grpc_metadata_batch* send_trailing_metadata; + grpc_closure* send_trailing_metadata_finished; - grpc_byte_stream *fetching_send_message; + grpc_byte_stream* fetching_send_message; uint32_t fetched_send_message_length; grpc_slice fetching_slice; int64_t next_message_end_offset; int64_t flow_controlled_bytes_written; int64_t flow_controlled_bytes_flowed; grpc_closure complete_fetch_locked; - grpc_closure *fetching_send_message_finished; + grpc_closure* fetching_send_message_finished; - grpc_metadata_batch *recv_initial_metadata; - grpc_closure *recv_initial_metadata_ready; - bool *trailing_metadata_available; - grpc_byte_stream **recv_message; - grpc_closure *recv_message_ready; - grpc_metadata_batch *recv_trailing_metadata; - grpc_closure *recv_trailing_metadata_finished; + grpc_metadata_batch* recv_initial_metadata; + grpc_closure* recv_initial_metadata_ready; + bool* trailing_metadata_available; + grpc_byte_stream** recv_message; + grpc_closure* recv_message_ready; + grpc_metadata_batch* recv_trailing_metadata; + grpc_closure* recv_trailing_metadata_finished; - grpc_transport_stream_stats *collecting_stats; + grpc_transport_stream_stats* collecting_stats; grpc_transport_stream_stats stats; /** Is this stream closed for writing. */ @@ -494,9 +490,9 @@ struct grpc_chttp2_stream { bool received_trailing_metadata; /** the error that resulted in this stream being read-closed */ - grpc_error *read_closed_error; + grpc_error* read_closed_error; /** the error that resulted in this stream being write-closed */ - grpc_error *write_closed_error; + grpc_error* write_closed_error; grpc_published_metadata_method published_metadata[2]; bool final_metadata_requested; @@ -509,16 +505,16 @@ struct grpc_chttp2_stream { * Accessed only by application thread when stream->pending_byte_stream == * true */ grpc_slice_buffer unprocessed_incoming_frames_buffer; - grpc_closure *on_next; /* protected by t combiner */ + grpc_closure* on_next; /* protected by t combiner */ bool pending_byte_stream; /* protected by t combiner */ grpc_closure reset_byte_stream; - grpc_error *byte_stream_error; /* protected by t combiner */ + grpc_error* byte_stream_error; /* protected by t combiner */ bool received_last_frame; /* protected by t combiner */ grpc_millis deadline; /** saw some stream level error */ - grpc_error *forced_close_error; + grpc_error* forced_close_error; /** how many header frames have we received? */ uint8_t header_frames_received; /** parsing state for data frames */ @@ -537,9 +533,9 @@ struct grpc_chttp2_stream { grpc_slice_buffer flow_controlled_buffer; - grpc_chttp2_write_cb *on_flow_controlled_cbs; - grpc_chttp2_write_cb *on_write_finished_cbs; - grpc_chttp2_write_cb *finish_after_write; + grpc_chttp2_write_cb* on_flow_controlled_cbs; + grpc_chttp2_write_cb* on_write_finished_cbs; + grpc_chttp2_write_cb* finish_after_write; size_t sending_bytes; /* Stream compression method to be used. */ @@ -547,9 +543,9 @@ struct grpc_chttp2_stream { /* Stream decompression method to be used. */ grpc_stream_compression_method stream_decompression_method; /** Stream compression decompress context */ - grpc_stream_compression_context *stream_decompression_ctx; + grpc_stream_compression_context* stream_decompression_ctx; /** Stream compression compress context */ - grpc_stream_compression_context *stream_compression_ctx; + grpc_stream_compression_context* stream_compression_ctx; /** Buffer storing data that is compressed but not sent */ grpc_slice_buffer compressed_data_buffer; @@ -577,8 +573,8 @@ struct grpc_chttp2_stream { The actual call chain is documented in the implementation of this function. */ -void grpc_chttp2_initiate_write(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +void grpc_chttp2_initiate_write(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_initiate_write_reason reason); typedef struct { @@ -591,85 +587,85 @@ typedef struct { } grpc_chttp2_begin_write_result; grpc_chttp2_begin_write_result grpc_chttp2_begin_write( - grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t); -void grpc_chttp2_end_write(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error); + grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t); +void grpc_chttp2_end_write(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error); /** Process one slice of incoming data; return 1 if the connection is still viable after reading, or 0 if the connection should be torn down */ -grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +grpc_error* grpc_chttp2_perform_read(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_slice slice); -bool grpc_chttp2_list_add_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); +bool grpc_chttp2_list_add_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); /** Get a writable stream returns non-zero if there was a stream available */ -bool grpc_chttp2_list_pop_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); -bool grpc_chttp2_list_remove_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); - -bool grpc_chttp2_list_add_writing_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -bool grpc_chttp2_list_have_writing_streams(grpc_chttp2_transport *t); -bool grpc_chttp2_list_pop_writing_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); - -void grpc_chttp2_list_add_written_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -bool grpc_chttp2_list_pop_written_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); - -void grpc_chttp2_list_add_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -bool grpc_chttp2_list_pop_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); -void grpc_chttp2_list_remove_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); - -void grpc_chttp2_list_add_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -bool grpc_chttp2_list_pop_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); -void grpc_chttp2_list_remove_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); - -void grpc_chttp2_list_add_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -bool grpc_chttp2_list_pop_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s); -bool grpc_chttp2_list_remove_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s); +bool grpc_chttp2_list_pop_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); +bool grpc_chttp2_list_remove_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); + +bool grpc_chttp2_list_add_writing_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +bool grpc_chttp2_list_have_writing_streams(grpc_chttp2_transport* t); +bool grpc_chttp2_list_pop_writing_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); + +void grpc_chttp2_list_add_written_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +bool grpc_chttp2_list_pop_written_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); + +void grpc_chttp2_list_add_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +bool grpc_chttp2_list_pop_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); +void grpc_chttp2_list_remove_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); + +void grpc_chttp2_list_add_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +bool grpc_chttp2_list_pop_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); +void grpc_chttp2_list_remove_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); + +void grpc_chttp2_list_add_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +bool grpc_chttp2_list_pop_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s); +bool grpc_chttp2_list_remove_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s); /********* Flow Control ***************/ // Takes in a flow control action and performs all the needed operations. void grpc_chttp2_act_on_flowctl_action( - grpc_exec_ctx *exec_ctx, const grpc_core::chttp2::FlowControlAction &action, - grpc_chttp2_transport *t, grpc_chttp2_stream *s); + grpc_exec_ctx* exec_ctx, const grpc_core::chttp2::FlowControlAction& action, + grpc_chttp2_transport* t, grpc_chttp2_stream* s); /********* End of Flow Control ***************/ -grpc_chttp2_stream *grpc_chttp2_parsing_lookup_stream(grpc_chttp2_transport *t, +grpc_chttp2_stream* grpc_chttp2_parsing_lookup_stream(grpc_chttp2_transport* t, uint32_t id); -grpc_chttp2_stream *grpc_chttp2_parsing_accept_stream(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +grpc_chttp2_stream* grpc_chttp2_parsing_accept_stream(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, uint32_t id); -void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +void grpc_chttp2_add_incoming_goaway(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, uint32_t goaway_error, grpc_slice goaway_text); -void grpc_chttp2_parsing_become_skip_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); +void grpc_chttp2_parsing_become_skip_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); -void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, - grpc_closure **pclosure, - grpc_error *error, const char *desc); +void grpc_chttp2_complete_closure_step(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, + grpc_closure** pclosure, + grpc_error* error, const char* desc); #define GRPC_HEADER_SIZE_IN_BYTES 5 #define MAX_SIZE_T (~(size_t)0) @@ -678,38 +674,38 @@ void grpc_chttp2_complete_closure_step(grpc_exec_ctx *exec_ctx, #define GRPC_CHTTP2_CLIENT_CONNECT_STRLEN \ (sizeof(GRPC_CHTTP2_CLIENT_CONNECT_STRING) - 1) -extern grpc_tracer_flag grpc_http_trace; -extern grpc_tracer_flag grpc_flowctl_trace; +// extern grpc_core::TraceFlag grpc_http_trace; +// extern grpc_core::TraceFlag grpc_flowctl_trace; -#define GRPC_CHTTP2_IF_TRACING(stmt) \ - if (!(GRPC_TRACER_ON(grpc_http_trace))) \ - ; \ - else \ - stmt +#define GRPC_CHTTP2_IF_TRACING(stmt) \ + if (!(grpc_http_trace.enabled())) \ + ; \ + else \ + stmt -void grpc_chttp2_fake_status(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *stream, grpc_error *error); -void grpc_chttp2_mark_stream_closed(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, int close_reads, - int close_writes, grpc_error *error); -void grpc_chttp2_start_writing(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); +void grpc_chttp2_fake_status(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* stream, grpc_error* error); +void grpc_chttp2_mark_stream_closed(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, int close_reads, + int close_writes, grpc_error* error); +void grpc_chttp2_start_writing(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); #ifndef NDEBUG #define GRPC_CHTTP2_STREAM_REF(stream, reason) \ grpc_chttp2_stream_ref(stream, reason) #define GRPC_CHTTP2_STREAM_UNREF(exec_ctx, stream, reason) \ grpc_chttp2_stream_unref(exec_ctx, stream, reason) -void grpc_chttp2_stream_ref(grpc_chttp2_stream *s, const char *reason); -void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s, - const char *reason); +void grpc_chttp2_stream_ref(grpc_chttp2_stream* s, const char* reason); +void grpc_chttp2_stream_unref(grpc_exec_ctx* exec_ctx, grpc_chttp2_stream* s, + const char* reason); #else #define GRPC_CHTTP2_STREAM_REF(stream, reason) grpc_chttp2_stream_ref(stream) #define GRPC_CHTTP2_STREAM_UNREF(exec_ctx, stream, reason) \ grpc_chttp2_stream_unref(exec_ctx, stream) -void grpc_chttp2_stream_ref(grpc_chttp2_stream *s); -void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s); +void grpc_chttp2_stream_ref(grpc_chttp2_stream* s); +void grpc_chttp2_stream_unref(grpc_exec_ctx* exec_ctx, grpc_chttp2_stream* s); #endif #ifndef NDEBUG @@ -717,69 +713,69 @@ void grpc_chttp2_stream_unref(grpc_exec_ctx *exec_ctx, grpc_chttp2_stream *s); grpc_chttp2_ref_transport(t, r, __FILE__, __LINE__) #define GRPC_CHTTP2_UNREF_TRANSPORT(cl, t, r) \ grpc_chttp2_unref_transport(cl, t, r, __FILE__, __LINE__) -void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, const char *reason, - const char *file, int line); -void grpc_chttp2_ref_transport(grpc_chttp2_transport *t, const char *reason, - const char *file, int line); +void grpc_chttp2_unref_transport(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, const char* reason, + const char* file, int line); +void grpc_chttp2_ref_transport(grpc_chttp2_transport* t, const char* reason, + const char* file, int line); #else #define GRPC_CHTTP2_REF_TRANSPORT(t, r) grpc_chttp2_ref_transport(t) #define GRPC_CHTTP2_UNREF_TRANSPORT(cl, t, r) grpc_chttp2_unref_transport(cl, t) -void grpc_chttp2_unref_transport(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -void grpc_chttp2_ref_transport(grpc_chttp2_transport *t); +void grpc_chttp2_unref_transport(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +void grpc_chttp2_ref_transport(grpc_chttp2_transport* t); #endif -grpc_chttp2_incoming_byte_stream *grpc_chttp2_incoming_byte_stream_create( - grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, grpc_chttp2_stream *s, +grpc_chttp2_incoming_byte_stream* grpc_chttp2_incoming_byte_stream_create( + grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, grpc_chttp2_stream* s, uint32_t frame_size, uint32_t flags); -grpc_error *grpc_chttp2_incoming_byte_stream_push( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_slice slice, grpc_slice *slice_out); -grpc_error *grpc_chttp2_incoming_byte_stream_finished( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_error *error, bool reset_on_error); +grpc_error* grpc_chttp2_incoming_byte_stream_push( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_slice slice, grpc_slice* slice_out); +grpc_error* grpc_chttp2_incoming_byte_stream_finished( + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_error* error, bool reset_on_error); void grpc_chttp2_incoming_byte_stream_notify( - grpc_exec_ctx *exec_ctx, grpc_chttp2_incoming_byte_stream *bs, - grpc_error *error); + grpc_exec_ctx* exec_ctx, grpc_chttp2_incoming_byte_stream* bs, + grpc_error* error); -void grpc_chttp2_ack_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, +void grpc_chttp2_ack_ping(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, uint64_t id); /** Add a new ping strike to ping_recv_state.ping_strikes. If ping_recv_state.ping_strikes > ping_policy.max_ping_strikes, it sends GOAWAY with error code ENHANCE_YOUR_CALM and additional debug data resembling "too_many_pings" followed by immediately closing the connection. */ -void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); +void grpc_chttp2_add_ping_strike(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); /** add a ref to the stream and add it to the writable list; ref will be dropped in writing.c */ -void grpc_chttp2_mark_stream_writable(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s); - -void grpc_chttp2_cancel_stream(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, grpc_chttp2_stream *s, - grpc_error *due_to_error); - -void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s); -void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s); - -void grpc_chttp2_fail_pending_writes(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_error *error); +void grpc_chttp2_mark_stream_writable(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s); + +void grpc_chttp2_cancel_stream(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_chttp2_stream* s, + grpc_error* due_to_error); + +void grpc_chttp2_maybe_complete_recv_initial_metadata(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +void grpc_chttp2_maybe_complete_recv_message(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s); +void grpc_chttp2_maybe_complete_recv_trailing_metadata(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s); + +void grpc_chttp2_fail_pending_writes(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_error* error); /** Set the default keepalive configurations, must only be called at initialization */ -void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args, +void grpc_chttp2_config_default_keepalive_args(grpc_channel_args* args, bool is_client); #ifdef __cplusplus diff --git a/src/core/ext/transport/chttp2/transport/parsing.cc b/src/core/ext/transport/chttp2/transport/parsing.cc index efa5791d3f..46ec3fbaa6 100644 --- a/src/core/ext/transport/chttp2/transport/parsing.cc +++ b/src/core/ext/transport/chttp2/transport/parsing.cc @@ -31,38 +31,38 @@ #include "src/core/lib/transport/status_conversion.h" #include "src/core/lib/transport/timeout_encoding.h" -static grpc_error *init_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static grpc_error* init_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_header_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, int is_continuation); -static grpc_error *init_data_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_rst_stream_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_settings_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_window_update_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_ping_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_goaway_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t); -static grpc_error *init_skip_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static grpc_error* init_data_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_rst_stream_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_settings_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_window_update_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_ping_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_goaway_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t); +static grpc_error* init_skip_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, int is_header); -static grpc_error *parse_frame_slice(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, grpc_slice slice, +static grpc_error* parse_frame_slice(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_slice slice, int is_last); -grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +grpc_error* grpc_chttp2_perform_read(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_slice slice) { - uint8_t *beg = GRPC_SLICE_START_PTR(slice); - uint8_t *end = GRPC_SLICE_END_PTR(slice); - uint8_t *cur = beg; - grpc_error *err; + uint8_t* beg = GRPC_SLICE_START_PTR(slice); + uint8_t* end = GRPC_SLICE_END_PTR(slice); + uint8_t* cur = beg; + grpc_error* err; if (cur == end) return GRPC_ERROR_NONE; @@ -93,7 +93,7 @@ grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, case GRPC_DTS_CLIENT_PREFIX_23: while (cur != end && t->deframe_state != GRPC_DTS_FH_0) { if (*cur != GRPC_CHTTP2_CLIENT_CONNECT_STRING[t->deframe_state]) { - char *msg; + char* msg; gpr_asprintf( &msg, "Connect string mismatch: expected '%c' (%d) got '%c' (%d) " @@ -191,7 +191,7 @@ grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, if (err != GRPC_ERROR_NONE) { return err; } - t->incoming_stream = NULL; + t->incoming_stream = nullptr; if (++cur == end) { t->deframe_state = GRPC_DTS_FH_0; return GRPC_ERROR_NONE; @@ -200,7 +200,7 @@ grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, } else if (t->incoming_frame_size > t->settings[GRPC_ACKED_SETTINGS] [GRPC_CHTTP2_SETTINGS_MAX_FRAME_SIZE]) { - char *msg; + char* msg; gpr_asprintf(&msg, "Frame size %d is larger than max frame size %d", t->incoming_frame_size, t->settings[GRPC_ACKED_SETTINGS] @@ -216,15 +216,16 @@ grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, case GRPC_DTS_FRAME: GPR_ASSERT(cur < end); if ((uint32_t)(end - cur) == t->incoming_frame_size) { - err = parse_frame_slice( - exec_ctx, t, grpc_slice_sub_no_ref(slice, (size_t)(cur - beg), - (size_t)(end - beg)), - 1); + err = + parse_frame_slice(exec_ctx, t, + grpc_slice_sub_no_ref(slice, (size_t)(cur - beg), + (size_t)(end - beg)), + 1); if (err != GRPC_ERROR_NONE) { return err; } t->deframe_state = GRPC_DTS_FH_0; - t->incoming_stream = NULL; + t->incoming_stream = nullptr; return GRPC_ERROR_NONE; } else if ((uint32_t)(end - cur) > t->incoming_frame_size) { size_t cur_offset = (size_t)(cur - beg); @@ -237,55 +238,56 @@ grpc_error *grpc_chttp2_perform_read(grpc_exec_ctx *exec_ctx, return err; } cur += t->incoming_frame_size; - t->incoming_stream = NULL; + t->incoming_stream = nullptr; goto dts_fh_0; /* loop */ } else { - err = parse_frame_slice( - exec_ctx, t, grpc_slice_sub_no_ref(slice, (size_t)(cur - beg), - (size_t)(end - beg)), - 0); + err = + parse_frame_slice(exec_ctx, t, + grpc_slice_sub_no_ref(slice, (size_t)(cur - beg), + (size_t)(end - beg)), + 0); if (err != GRPC_ERROR_NONE) { return err; } t->incoming_frame_size -= (uint32_t)(end - cur); return GRPC_ERROR_NONE; } - GPR_UNREACHABLE_CODE(return 0); + GPR_UNREACHABLE_CODE(return nullptr); } - GPR_UNREACHABLE_CODE(return 0); + GPR_UNREACHABLE_CODE(return nullptr); } -static grpc_error *init_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static grpc_error* init_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { if (t->is_first_frame && t->incoming_frame_type != GRPC_CHTTP2_FRAME_SETTINGS) { - char *msg; + char* msg; gpr_asprintf( &msg, "Expected SETTINGS frame as the first frame, got frame type %d", t->incoming_frame_type); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } t->is_first_frame = false; if (t->expect_continuation_stream_id != 0) { if (t->incoming_frame_type != GRPC_CHTTP2_FRAME_CONTINUATION) { - char *msg; + char* msg; gpr_asprintf(&msg, "Expected CONTINUATION frame, got frame type %02x", t->incoming_frame_type); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } if (t->expect_continuation_stream_id != t->incoming_stream_id) { - char *msg; + char* msg; gpr_asprintf( &msg, "Expected CONTINUATION frame for grpc_chttp2_stream %08x, got " "grpc_chttp2_stream %08x", t->expect_continuation_stream_id, t->incoming_stream_id); - grpc_error *err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); + grpc_error* err = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg); gpr_free(msg); return err; } @@ -310,32 +312,32 @@ static grpc_error *init_frame_parser(grpc_exec_ctx *exec_ctx, case GRPC_CHTTP2_FRAME_GOAWAY: return init_goaway_parser(exec_ctx, t); default: - if (GRPC_TRACER_ON(grpc_http_trace)) { + if (grpc_http_trace.enabled()) { gpr_log(GPR_ERROR, "Unknown frame type %02x", t->incoming_frame_type); } return init_skip_frame_parser(exec_ctx, t, 0); } } -static grpc_error *skip_parser(grpc_exec_ctx *exec_ctx, void *parser, - grpc_chttp2_transport *t, grpc_chttp2_stream *s, +static grpc_error* skip_parser(grpc_exec_ctx* exec_ctx, void* parser, + grpc_chttp2_transport* t, grpc_chttp2_stream* s, grpc_slice slice, int is_last) { return GRPC_ERROR_NONE; } -static void skip_header(grpc_exec_ctx *exec_ctx, void *tp, grpc_mdelem md) { +static void skip_header(grpc_exec_ctx* exec_ctx, void* tp, grpc_mdelem md) { GRPC_MDELEM_UNREF(exec_ctx, md); } -static grpc_error *init_skip_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static grpc_error* init_skip_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, int is_header) { if (is_header) { uint8_t is_eoh = t->expect_continuation_stream_id != 0; t->parser = grpc_chttp2_header_parser_parse; t->parser_data = &t->hpack_parser; t->hpack_parser.on_header = skip_header; - t->hpack_parser.on_header_user_data = NULL; + t->hpack_parser.on_header_user_data = nullptr; t->hpack_parser.is_boundary = is_eoh; t->hpack_parser.is_eof = (uint8_t)(is_eoh ? t->header_eof : 0); } else { @@ -344,17 +346,17 @@ static grpc_error *init_skip_frame_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -void grpc_chttp2_parsing_become_skip_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +void grpc_chttp2_parsing_become_skip_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { init_skip_frame_parser(exec_ctx, t, t->parser == grpc_chttp2_header_parser_parse); } -static grpc_error *init_data_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_chttp2_stream *s = +static grpc_error* init_data_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_chttp2_stream* s = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); - grpc_error *err = GRPC_ERROR_NONE; + grpc_error* err = GRPC_ERROR_NONE; grpc_core::chttp2::FlowControlAction action; if (s == nullptr) { err = t->flow_control->RecvData(t->incoming_frame_size); @@ -367,7 +369,7 @@ static grpc_error *init_data_frame_parser(grpc_exec_ctx *exec_ctx, if (err != GRPC_ERROR_NONE) { goto error_handler; } - if (s == NULL) { + if (s == nullptr) { return init_skip_frame_parser(exec_ctx, t, 0); } s->received_bytes += t->incoming_frame_size; @@ -389,9 +391,9 @@ error_handler: t->ping_policy.max_pings_without_data; t->ping_state.last_ping_sent_time = GRPC_MILLIS_INF_PAST; return GRPC_ERROR_NONE; - } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, NULL)) { + } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, nullptr)) { /* handle stream errors by closing the stream */ - if (s != NULL) { + if (s != nullptr) { grpc_chttp2_mark_stream_closed(exec_ctx, t, s, true, false, err); } grpc_slice_buffer_add( @@ -404,20 +406,20 @@ error_handler: } } -static void free_timeout(void *p) { gpr_free(p); } +static void free_timeout(void* p) { gpr_free(p); } -static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp, +static void on_initial_header(grpc_exec_ctx* exec_ctx, void* tp, grpc_mdelem md) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; - grpc_chttp2_stream *s = t->incoming_stream; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; + grpc_chttp2_stream* s = t->incoming_stream; GPR_TIMER_BEGIN("on_initial_header", 0); - GPR_ASSERT(s != NULL); + GPR_ASSERT(s != nullptr); - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *key = grpc_slice_to_c_string(GRPC_MDKEY(md)); - char *value = + if (grpc_http_trace.enabled()) { + char* key = grpc_slice_to_c_string(GRPC_MDKEY(md)); + char* value = grpc_dump_slice(GRPC_MDVALUE(md), GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_INFO, "HTTP:%d:HDR:%s: %s: %s", s->id, t->is_client ? "CLI" : "SVR", key, value); @@ -432,21 +434,21 @@ static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp, } if (grpc_slice_eq(GRPC_MDKEY(md), GRPC_MDSTR_GRPC_TIMEOUT)) { - grpc_millis *cached_timeout = - static_cast<grpc_millis *>(grpc_mdelem_get_user_data(md, free_timeout)); + grpc_millis* cached_timeout = + static_cast<grpc_millis*>(grpc_mdelem_get_user_data(md, free_timeout)); grpc_millis timeout; - if (cached_timeout != NULL) { + if (cached_timeout != nullptr) { timeout = *cached_timeout; } else { if (!grpc_http2_decode_timeout(GRPC_MDVALUE(md), &timeout)) { - char *val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); + char* val = grpc_slice_to_c_string(GRPC_MDVALUE(md)); gpr_log(GPR_ERROR, "Ignoring bad timeout value '%s'", val); gpr_free(val); timeout = GRPC_MILLIS_INF_FUTURE; } if (GRPC_MDELEM_IS_INTERNED(md)) { /* store the result */ - cached_timeout = (grpc_millis *)gpr_malloc(sizeof(grpc_millis)); + cached_timeout = (grpc_millis*)gpr_malloc(sizeof(grpc_millis)); *cached_timeout = timeout; grpc_mdelem_set_user_data(md, free_timeout, cached_timeout); } @@ -476,7 +478,7 @@ static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp, s->seen_error = true; GRPC_MDELEM_UNREF(exec_ctx, md); } else { - grpc_error *error = grpc_chttp2_incoming_metadata_buffer_add( + grpc_error* error = grpc_chttp2_incoming_metadata_buffer_add( exec_ctx, &s->metadata_buffer[0], md); if (error != GRPC_ERROR_NONE) { grpc_chttp2_cancel_stream(exec_ctx, t, s, error); @@ -490,18 +492,18 @@ static void on_initial_header(grpc_exec_ctx *exec_ctx, void *tp, GPR_TIMER_END("on_initial_header", 0); } -static void on_trailing_header(grpc_exec_ctx *exec_ctx, void *tp, +static void on_trailing_header(grpc_exec_ctx* exec_ctx, void* tp, grpc_mdelem md) { - grpc_chttp2_transport *t = (grpc_chttp2_transport *)tp; - grpc_chttp2_stream *s = t->incoming_stream; + grpc_chttp2_transport* t = (grpc_chttp2_transport*)tp; + grpc_chttp2_stream* s = t->incoming_stream; GPR_TIMER_BEGIN("on_trailing_header", 0); - GPR_ASSERT(s != NULL); + GPR_ASSERT(s != nullptr); - if (GRPC_TRACER_ON(grpc_http_trace)) { - char *key = grpc_slice_to_c_string(GRPC_MDKEY(md)); - char *value = + if (grpc_http_trace.enabled()) { + char* key = grpc_slice_to_c_string(GRPC_MDKEY(md)); + char* value = grpc_dump_slice(GRPC_MDVALUE(md), GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_INFO, "HTTP:%d:TRL:%s: %s: %s", s->id, t->is_client ? "CLI" : "SVR", key, value); @@ -534,7 +536,7 @@ static void on_trailing_header(grpc_exec_ctx *exec_ctx, void *tp, s->seen_error = true; GRPC_MDELEM_UNREF(exec_ctx, md); } else { - grpc_error *error = grpc_chttp2_incoming_metadata_buffer_add( + grpc_error* error = grpc_chttp2_incoming_metadata_buffer_add( exec_ctx, &s->metadata_buffer[1], md); if (error != GRPC_ERROR_NONE) { grpc_chttp2_cancel_stream(exec_ctx, t, s, error); @@ -547,12 +549,12 @@ static void on_trailing_header(grpc_exec_ctx *exec_ctx, void *tp, GPR_TIMER_END("on_trailing_header", 0); } -static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, +static grpc_error* init_header_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, int is_continuation) { uint8_t is_eoh = (t->incoming_frame_flags & GRPC_CHTTP2_DATA_FLAG_END_HEADERS) != 0; - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; /* TODO(ctiller): when to increment header_frames_received? */ @@ -573,7 +575,7 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, /* could be a new grpc_chttp2_stream or an existing grpc_chttp2_stream */ s = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); - if (s == NULL) { + if (s == nullptr) { if (is_continuation) { GRPC_CHTTP2_IF_TRACING( gpr_log(GPR_ERROR, @@ -588,7 +590,11 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, GRPC_CHTTP2_IF_TRACING(gpr_log( GPR_ERROR, "ignoring new grpc_chttp2_stream creation on client")); } - return init_skip_frame_parser(exec_ctx, t, 1); + grpc_error* err = init_skip_frame_parser(exec_ctx, t, 1); + if (t->incoming_frame_flags & GRPC_CHTTP2_FLAG_HAS_PRIORITY) { + grpc_chttp2_hpack_parser_set_has_priority(&t->hpack_parser); + } + return err; } else if (t->last_new_stream_id >= t->incoming_stream_id) { GRPC_CHTTP2_IF_TRACING(gpr_log( GPR_ERROR, @@ -611,7 +617,7 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, t->last_new_stream_id = t->incoming_stream_id; s = t->incoming_stream = grpc_chttp2_parsing_accept_stream(exec_ctx, t, t->incoming_stream_id); - if (s == NULL) { + if (s == nullptr) { GRPC_CHTTP2_IF_TRACING( gpr_log(GPR_ERROR, "grpc_chttp2_stream not accepted")); return init_skip_frame_parser(exec_ctx, t, 1); @@ -619,12 +625,12 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, } else { t->incoming_stream = s; } - GPR_ASSERT(s != NULL); + GPR_ASSERT(s != nullptr); s->stats.incoming.framing_bytes += 9; if (s->read_closed) { GRPC_CHTTP2_IF_TRACING(gpr_log( GPR_ERROR, "skipping already closed grpc_chttp2_stream header")); - t->incoming_stream = NULL; + t->incoming_stream = nullptr; return init_skip_frame_parser(exec_ctx, t, 1); } t->parser = grpc_chttp2_header_parser_parse; @@ -633,7 +639,7 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, case 0: if (t->is_client && t->header_eof) { GRPC_CHTTP2_IF_TRACING(gpr_log(GPR_INFO, "parsing Trailers-Only")); - if (s->trailing_metadata_available != NULL) { + if (s->trailing_metadata_available != nullptr) { *s->trailing_metadata_available = true; } t->hpack_parser.on_header = on_trailing_header; @@ -662,16 +668,16 @@ static grpc_error *init_header_frame_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *init_window_update_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_error *err = grpc_chttp2_window_update_parser_begin_frame( +static grpc_error* init_window_update_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_error* err = grpc_chttp2_window_update_parser_begin_frame( &t->simple.window_update, t->incoming_frame_size, t->incoming_frame_flags); if (err != GRPC_ERROR_NONE) return err; if (t->incoming_stream_id != 0) { - grpc_chttp2_stream *s = t->incoming_stream = + grpc_chttp2_stream* s = t->incoming_stream = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); - if (s == NULL) { + if (s == nullptr) { return init_skip_frame_parser(exec_ctx, t, 0); } s->stats.incoming.framing_bytes += 9; @@ -681,9 +687,9 @@ static grpc_error *init_window_update_frame_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *init_ping_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_error *err = grpc_chttp2_ping_parser_begin_frame( +static grpc_error* init_ping_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_error* err = grpc_chttp2_ping_parser_begin_frame( &t->simple.ping, t->incoming_frame_size, t->incoming_frame_flags); if (err != GRPC_ERROR_NONE) return err; t->parser = grpc_chttp2_ping_parser_parse; @@ -691,12 +697,12 @@ static grpc_error *init_ping_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *init_rst_stream_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_error *err = grpc_chttp2_rst_stream_parser_begin_frame( +static grpc_error* init_rst_stream_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_error* err = grpc_chttp2_rst_stream_parser_begin_frame( &t->simple.rst_stream, t->incoming_frame_size, t->incoming_frame_flags); if (err != GRPC_ERROR_NONE) return err; - grpc_chttp2_stream *s = t->incoming_stream = + grpc_chttp2_stream* s = t->incoming_stream = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); if (!t->incoming_stream) { return init_skip_frame_parser(exec_ctx, t, 0); @@ -707,9 +713,9 @@ static grpc_error *init_rst_stream_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *init_goaway_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_error *err = grpc_chttp2_goaway_parser_begin_frame( +static grpc_error* init_goaway_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_error* err = grpc_chttp2_goaway_parser_begin_frame( &t->goaway_parser, t->incoming_frame_size, t->incoming_frame_flags); if (err != GRPC_ERROR_NONE) return err; t->parser = grpc_chttp2_goaway_parser_parse; @@ -717,14 +723,14 @@ static grpc_error *init_goaway_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *init_settings_frame_parser(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { +static grpc_error* init_settings_frame_parser(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { if (t->incoming_stream_id != 0) { return GRPC_ERROR_CREATE_FROM_STATIC_STRING( "Settings frame received for grpc_chttp2_stream"); } - grpc_error *err = grpc_chttp2_settings_parser_begin_frame( + grpc_error* err = grpc_chttp2_settings_parser_begin_frame( &t->simple.settings, t->incoming_frame_size, t->incoming_frame_flags, t->settings[GRPC_PEER_SETTINGS]); if (err != GRPC_ERROR_NONE) { @@ -744,16 +750,16 @@ static grpc_error *init_settings_frame_parser(grpc_exec_ctx *exec_ctx, return GRPC_ERROR_NONE; } -static grpc_error *parse_frame_slice(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t, grpc_slice slice, +static grpc_error* parse_frame_slice(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t, grpc_slice slice, int is_last) { - grpc_chttp2_stream *s = t->incoming_stream; - grpc_error *err = t->parser(exec_ctx, t->parser_data, t, s, slice, is_last); + grpc_chttp2_stream* s = t->incoming_stream; + grpc_error* err = t->parser(exec_ctx, t->parser_data, t, s, slice, is_last); if (err == GRPC_ERROR_NONE) { return err; - } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, NULL)) { - if (GRPC_TRACER_ON(grpc_http_trace)) { - const char *msg = grpc_error_string(err); + } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, nullptr)) { + if (grpc_http_trace.enabled()) { + const char* msg = grpc_error_string(err); gpr_log(GPR_ERROR, "%s", msg); } grpc_chttp2_parsing_become_skip_parser(exec_ctx, t); diff --git a/src/core/ext/transport/chttp2/transport/stream_lists.cc b/src/core/ext/transport/chttp2/transport/stream_lists.cc index 9f731a397f..c95d02541a 100644 --- a/src/core/ext/transport/chttp2/transport/stream_lists.cc +++ b/src/core/ext/transport/chttp2/transport/stream_lists.cc @@ -21,7 +21,7 @@ #include <grpc/support/log.h> -static const char *stream_list_id_string(grpc_chttp2_stream_list_id id) { +static const char* stream_list_id_string(grpc_chttp2_stream_list_id id) { switch (id) { case GRPC_CHTTP2_LIST_WRITABLE: return "writable"; @@ -39,41 +39,40 @@ static const char *stream_list_id_string(grpc_chttp2_stream_list_id id) { GPR_UNREACHABLE_CODE(return "unknown"); } -grpc_tracer_flag grpc_trace_http2_stream_state = - GRPC_TRACER_INITIALIZER(false, "http2_stream_state"); +grpc_core::TraceFlag grpc_trace_http2_stream_state(false, "http2_stream_state"); /* core list management */ -static bool stream_list_empty(grpc_chttp2_transport *t, +static bool stream_list_empty(grpc_chttp2_transport* t, grpc_chttp2_stream_list_id id) { - return t->lists[id].head == NULL; + return t->lists[id].head == nullptr; } -static bool stream_list_pop(grpc_chttp2_transport *t, - grpc_chttp2_stream **stream, +static bool stream_list_pop(grpc_chttp2_transport* t, + grpc_chttp2_stream** stream, grpc_chttp2_stream_list_id id) { - grpc_chttp2_stream *s = t->lists[id].head; + grpc_chttp2_stream* s = t->lists[id].head; if (s) { - grpc_chttp2_stream *new_head = s->links[id].next; + grpc_chttp2_stream* new_head = s->links[id].next; GPR_ASSERT(s->included[id]); if (new_head) { t->lists[id].head = new_head; - new_head->links[id].prev = NULL; + new_head->links[id].prev = nullptr; } else { - t->lists[id].head = NULL; - t->lists[id].tail = NULL; + t->lists[id].head = nullptr; + t->lists[id].tail = nullptr; } s->included[id] = 0; } *stream = s; - if (s && GRPC_TRACER_ON(grpc_trace_http2_stream_state)) { + if (s && grpc_trace_http2_stream_state.enabled()) { gpr_log(GPR_DEBUG, "%p[%d][%s]: pop from %s", t, s->id, t->is_client ? "cli" : "svr", stream_list_id_string(id)); } - return s != 0; + return s != nullptr; } -static void stream_list_remove(grpc_chttp2_transport *t, grpc_chttp2_stream *s, +static void stream_list_remove(grpc_chttp2_transport* t, grpc_chttp2_stream* s, grpc_chttp2_stream_list_id id) { GPR_ASSERT(s->included[id]); s->included[id] = 0; @@ -88,14 +87,14 @@ static void stream_list_remove(grpc_chttp2_transport *t, grpc_chttp2_stream *s, } else { t->lists[id].tail = s->links[id].prev; } - if (GRPC_TRACER_ON(grpc_trace_http2_stream_state)) { + if (grpc_trace_http2_stream_state.enabled()) { gpr_log(GPR_DEBUG, "%p[%d][%s]: remove from %s", t, s->id, t->is_client ? "cli" : "svr", stream_list_id_string(id)); } } -static bool stream_list_maybe_remove(grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +static bool stream_list_maybe_remove(grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_chttp2_stream_list_id id) { if (s->included[id]) { stream_list_remove(t, s, id); @@ -105,13 +104,13 @@ static bool stream_list_maybe_remove(grpc_chttp2_transport *t, } } -static void stream_list_add_tail(grpc_chttp2_transport *t, - grpc_chttp2_stream *s, +static void stream_list_add_tail(grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_chttp2_stream_list_id id) { - grpc_chttp2_stream *old_tail; + grpc_chttp2_stream* old_tail; GPR_ASSERT(!s->included[id]); old_tail = t->lists[id].tail; - s->links[id].next = NULL; + s->links[id].next = nullptr; s->links[id].prev = old_tail; if (old_tail) { old_tail->links[id].next = s; @@ -120,13 +119,13 @@ static void stream_list_add_tail(grpc_chttp2_transport *t, } t->lists[id].tail = s; s->included[id] = 1; - if (GRPC_TRACER_ON(grpc_trace_http2_stream_state)) { + if (grpc_trace_http2_stream_state.enabled()) { gpr_log(GPR_DEBUG, "%p[%d][%s]: add to %s", t, s->id, t->is_client ? "cli" : "svr", stream_list_id_string(id)); } } -static bool stream_list_add(grpc_chttp2_transport *t, grpc_chttp2_stream *s, +static bool stream_list_add(grpc_chttp2_transport* t, grpc_chttp2_stream* s, grpc_chttp2_stream_list_id id) { if (s->included[id]) { return false; @@ -137,77 +136,77 @@ static bool stream_list_add(grpc_chttp2_transport *t, grpc_chttp2_stream *s, /* wrappers for specializations */ -bool grpc_chttp2_list_add_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +bool grpc_chttp2_list_add_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { GPR_ASSERT(s->id != 0); return stream_list_add(t, s, GRPC_CHTTP2_LIST_WRITABLE); } -bool grpc_chttp2_list_pop_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s) { +bool grpc_chttp2_list_pop_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s) { return stream_list_pop(t, s, GRPC_CHTTP2_LIST_WRITABLE); } -bool grpc_chttp2_list_remove_writable_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +bool grpc_chttp2_list_remove_writable_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { return stream_list_maybe_remove(t, s, GRPC_CHTTP2_LIST_WRITABLE); } -bool grpc_chttp2_list_add_writing_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +bool grpc_chttp2_list_add_writing_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { return stream_list_add(t, s, GRPC_CHTTP2_LIST_WRITING); } -bool grpc_chttp2_list_have_writing_streams(grpc_chttp2_transport *t) { +bool grpc_chttp2_list_have_writing_streams(grpc_chttp2_transport* t) { return !stream_list_empty(t, GRPC_CHTTP2_LIST_WRITING); } -bool grpc_chttp2_list_pop_writing_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s) { +bool grpc_chttp2_list_pop_writing_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s) { return stream_list_pop(t, s, GRPC_CHTTP2_LIST_WRITING); } -void grpc_chttp2_list_add_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_list_add_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { stream_list_add(t, s, GRPC_CHTTP2_LIST_WAITING_FOR_CONCURRENCY); } -bool grpc_chttp2_list_pop_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream **s) { +bool grpc_chttp2_list_pop_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream** s) { return stream_list_pop(t, s, GRPC_CHTTP2_LIST_WAITING_FOR_CONCURRENCY); } -void grpc_chttp2_list_remove_waiting_for_concurrency(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_list_remove_waiting_for_concurrency(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { stream_list_maybe_remove(t, s, GRPC_CHTTP2_LIST_WAITING_FOR_CONCURRENCY); } -void grpc_chttp2_list_add_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_list_add_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { stream_list_add(t, s, GRPC_CHTTP2_LIST_STALLED_BY_TRANSPORT); } -bool grpc_chttp2_list_pop_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream **s) { +bool grpc_chttp2_list_pop_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream** s) { return stream_list_pop(t, s, GRPC_CHTTP2_LIST_STALLED_BY_TRANSPORT); } -void grpc_chttp2_list_remove_stalled_by_transport(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_list_remove_stalled_by_transport(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { stream_list_maybe_remove(t, s, GRPC_CHTTP2_LIST_STALLED_BY_TRANSPORT); } -void grpc_chttp2_list_add_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +void grpc_chttp2_list_add_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { stream_list_add(t, s, GRPC_CHTTP2_LIST_STALLED_BY_STREAM); } -bool grpc_chttp2_list_pop_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream **s) { +bool grpc_chttp2_list_pop_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream** s) { return stream_list_pop(t, s, GRPC_CHTTP2_LIST_STALLED_BY_STREAM); } -bool grpc_chttp2_list_remove_stalled_by_stream(grpc_chttp2_transport *t, - grpc_chttp2_stream *s) { +bool grpc_chttp2_list_remove_stalled_by_stream(grpc_chttp2_transport* t, + grpc_chttp2_stream* s) { return stream_list_maybe_remove(t, s, GRPC_CHTTP2_LIST_STALLED_BY_STREAM); } diff --git a/src/core/ext/transport/chttp2/transport/stream_map.cc b/src/core/ext/transport/chttp2/transport/stream_map.cc index d6079a9a33..e4f08f5a6c 100644 --- a/src/core/ext/transport/chttp2/transport/stream_map.cc +++ b/src/core/ext/transport/chttp2/transport/stream_map.cc @@ -24,22 +24,22 @@ #include <grpc/support/log.h> #include <grpc/support/useful.h> -void grpc_chttp2_stream_map_init(grpc_chttp2_stream_map *map, +void grpc_chttp2_stream_map_init(grpc_chttp2_stream_map* map, size_t initial_capacity) { GPR_ASSERT(initial_capacity > 1); - map->keys = (uint32_t *)gpr_malloc(sizeof(uint32_t) * initial_capacity); - map->values = (void **)gpr_malloc(sizeof(void *) * initial_capacity); + map->keys = (uint32_t*)gpr_malloc(sizeof(uint32_t) * initial_capacity); + map->values = (void**)gpr_malloc(sizeof(void*) * initial_capacity); map->count = 0; map->free = 0; map->capacity = initial_capacity; } -void grpc_chttp2_stream_map_destroy(grpc_chttp2_stream_map *map) { +void grpc_chttp2_stream_map_destroy(grpc_chttp2_stream_map* map) { gpr_free(map->keys); gpr_free(map->values); } -static size_t compact(uint32_t *keys, void **values, size_t count) { +static size_t compact(uint32_t* keys, void** values, size_t count) { size_t i, out; for (i = 0, out = 0; i < count; i++) { @@ -53,16 +53,16 @@ static size_t compact(uint32_t *keys, void **values, size_t count) { return out; } -void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map *map, uint32_t key, - void *value) { +void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map* map, uint32_t key, + void* value) { size_t count = map->count; size_t capacity = map->capacity; - uint32_t *keys = map->keys; - void **values = map->values; + uint32_t* keys = map->keys; + void** values = map->values; GPR_ASSERT(count == 0 || keys[count - 1] < key); GPR_ASSERT(value); - GPR_ASSERT(grpc_chttp2_stream_map_find(map, key) == NULL); + GPR_ASSERT(grpc_chttp2_stream_map_find(map, key) == nullptr); if (count == capacity) { if (map->free > capacity / 4) { @@ -73,9 +73,9 @@ void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map *map, uint32_t key, won't help much */ map->capacity = capacity = 3 * capacity / 2; map->keys = keys = - (uint32_t *)gpr_realloc(keys, capacity * sizeof(uint32_t)); + (uint32_t*)gpr_realloc(keys, capacity * sizeof(uint32_t)); map->values = values = - (void **)gpr_realloc(values, capacity * sizeof(void *)); + (void**)gpr_realloc(values, capacity * sizeof(void*)); } } @@ -84,15 +84,15 @@ void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map *map, uint32_t key, map->count = count + 1; } -static void **find(grpc_chttp2_stream_map *map, uint32_t key) { +static void** find(grpc_chttp2_stream_map* map, uint32_t key) { size_t min_idx = 0; size_t max_idx = map->count; size_t mid_idx; - uint32_t *keys = map->keys; - void **values = map->values; + uint32_t* keys = map->keys; + void** values = map->values; uint32_t mid_key; - if (max_idx == 0) return NULL; + if (max_idx == 0) return nullptr; while (min_idx < max_idx) { /* find the midpoint, avoiding overflow */ @@ -109,50 +109,51 @@ static void **find(grpc_chttp2_stream_map *map, uint32_t key) { } } - return NULL; + return nullptr; } -void *grpc_chttp2_stream_map_delete(grpc_chttp2_stream_map *map, uint32_t key) { - void **pvalue = find(map, key); - void *out = NULL; - if (pvalue != NULL) { +void* grpc_chttp2_stream_map_delete(grpc_chttp2_stream_map* map, uint32_t key) { + void** pvalue = find(map, key); + void* out = nullptr; + if (pvalue != nullptr) { out = *pvalue; - *pvalue = NULL; - map->free += (out != NULL); + *pvalue = nullptr; + map->free += (out != nullptr); /* recognize complete emptyness and ensure we can skip * defragmentation later */ if (map->free == map->count) { map->free = map->count = 0; } - GPR_ASSERT(grpc_chttp2_stream_map_find(map, key) == NULL); + GPR_ASSERT(grpc_chttp2_stream_map_find(map, key) == nullptr); } return out; } -void *grpc_chttp2_stream_map_find(grpc_chttp2_stream_map *map, uint32_t key) { - void **pvalue = find(map, key); - return pvalue != NULL ? *pvalue : NULL; +void* grpc_chttp2_stream_map_find(grpc_chttp2_stream_map* map, uint32_t key) { + void** pvalue = find(map, key); + return pvalue != nullptr ? *pvalue : nullptr; } -size_t grpc_chttp2_stream_map_size(grpc_chttp2_stream_map *map) { +size_t grpc_chttp2_stream_map_size(grpc_chttp2_stream_map* map) { return map->count - map->free; } -void *grpc_chttp2_stream_map_rand(grpc_chttp2_stream_map *map) { +void* grpc_chttp2_stream_map_rand(grpc_chttp2_stream_map* map) { if (map->count == map->free) { - return NULL; + return nullptr; } if (map->free != 0) { map->count = compact(map->keys, map->values, map->count); map->free = 0; + GPR_ASSERT(map->count > 0); } return map->values[((size_t)rand()) % map->count]; } -void grpc_chttp2_stream_map_for_each(grpc_chttp2_stream_map *map, - void (*f)(void *user_data, uint32_t key, - void *value), - void *user_data) { +void grpc_chttp2_stream_map_for_each(grpc_chttp2_stream_map* map, + void (*f)(void* user_data, uint32_t key, + void* value), + void* user_data) { size_t i; for (i = 0; i < map->count; i++) { diff --git a/src/core/ext/transport/chttp2/transport/stream_map.h b/src/core/ext/transport/chttp2/transport/stream_map.h index 7ab6a4f5ed..c89d20047c 100644 --- a/src/core/ext/transport/chttp2/transport/stream_map.h +++ b/src/core/ext/transport/chttp2/transport/stream_map.h @@ -34,40 +34,40 @@ extern "C" { Adds are restricted to strictly higher keys than previously seen (this is guaranteed by http2). */ typedef struct { - uint32_t *keys; - void **values; + uint32_t* keys; + void** values; size_t count; size_t free; size_t capacity; } grpc_chttp2_stream_map; -void grpc_chttp2_stream_map_init(grpc_chttp2_stream_map *map, +void grpc_chttp2_stream_map_init(grpc_chttp2_stream_map* map, size_t initial_capacity); -void grpc_chttp2_stream_map_destroy(grpc_chttp2_stream_map *map); +void grpc_chttp2_stream_map_destroy(grpc_chttp2_stream_map* map); /* Add a new key: given http2 semantics, new keys must always be greater than existing keys - this is asserted */ -void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map *map, uint32_t key, - void *value); +void grpc_chttp2_stream_map_add(grpc_chttp2_stream_map* map, uint32_t key, + void* value); /* Delete an existing key - returns the previous value of the key if it existed, or NULL otherwise */ -void *grpc_chttp2_stream_map_delete(grpc_chttp2_stream_map *map, uint32_t key); +void* grpc_chttp2_stream_map_delete(grpc_chttp2_stream_map* map, uint32_t key); /* Return an existing key, or NULL if it does not exist */ -void *grpc_chttp2_stream_map_find(grpc_chttp2_stream_map *map, uint32_t key); +void* grpc_chttp2_stream_map_find(grpc_chttp2_stream_map* map, uint32_t key); /* Return a random entry */ -void *grpc_chttp2_stream_map_rand(grpc_chttp2_stream_map *map); +void* grpc_chttp2_stream_map_rand(grpc_chttp2_stream_map* map); /* How many (populated) entries are in the stream map? */ -size_t grpc_chttp2_stream_map_size(grpc_chttp2_stream_map *map); +size_t grpc_chttp2_stream_map_size(grpc_chttp2_stream_map* map); /* Callback on each stream */ -void grpc_chttp2_stream_map_for_each(grpc_chttp2_stream_map *map, - void (*f)(void *user_data, uint32_t key, - void *value), - void *user_data); +void grpc_chttp2_stream_map_for_each(grpc_chttp2_stream_map* map, + void (*f)(void* user_data, uint32_t key, + void* value), + void* user_data); #ifdef __cplusplus } diff --git a/src/core/ext/transport/chttp2/transport/writing.cc b/src/core/ext/transport/chttp2/transport/writing.cc index ff76a5fcdb..15869b8880 100644 --- a/src/core/ext/transport/chttp2/transport/writing.cc +++ b/src/core/ext/transport/chttp2/transport/writing.cc @@ -27,32 +27,31 @@ #include "src/core/lib/slice/slice_internal.h" #include "src/core/lib/transport/http2_errors.h" -static void add_to_write_list(grpc_chttp2_write_cb **list, - grpc_chttp2_write_cb *cb) { +static void add_to_write_list(grpc_chttp2_write_cb** list, + grpc_chttp2_write_cb* cb) { cb->next = *list; *list = cb; } -static void finish_write_cb(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, grpc_chttp2_write_cb *cb, - grpc_error *error) { +static void finish_write_cb(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, grpc_chttp2_write_cb* cb, + grpc_error* error) { grpc_chttp2_complete_closure_step(exec_ctx, t, s, &cb->closure, error, "finish_write_cb"); cb->next = t->write_cb_pool; t->write_cb_pool = cb; } -static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, - grpc_chttp2_transport *t) { - grpc_chttp2_ping_queue *pq = &t->ping_queue; +static void maybe_initiate_ping(grpc_exec_ctx* exec_ctx, + grpc_chttp2_transport* t) { + grpc_chttp2_ping_queue* pq = &t->ping_queue; if (grpc_closure_list_empty(pq->lists[GRPC_CHTTP2_PCL_NEXT])) { /* no ping needed: wait */ return; } if (!grpc_closure_list_empty(pq->lists[GRPC_CHTTP2_PCL_INFLIGHT])) { /* ping already in-flight: wait */ - if (GRPC_TRACER_ON(grpc_http_trace) || - GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { + if (grpc_http_trace.enabled() || grpc_bdp_estimator_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Ping delayed [%p]: already pinging", t->is_client ? "CLIENT" : "SERVER", t->peer_string); } @@ -61,8 +60,7 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, if (t->ping_state.pings_before_data_required == 0 && t->ping_policy.max_pings_without_data != 0) { /* need to receive something of substance before sending a ping again */ - if (GRPC_TRACER_ON(grpc_http_trace) || - GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { + if (grpc_http_trace.enabled() || grpc_bdp_estimator_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Ping delayed [%p]: too many recent pings: %d/%d", t->is_client ? "CLIENT" : "SERVER", t->peer_string, t->ping_state.pings_before_data_required, @@ -81,8 +79,7 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, } if (next_allowed_ping > now) { /* not enough elapsed time between successive pings */ - if (GRPC_TRACER_ON(grpc_http_trace) || - GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { + if (grpc_http_trace.enabled() || grpc_bdp_estimator_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Ping delayed [%p]: not enough time elapsed since last ping", t->is_client ? "CLIENT" : "SERVER", t->peer_string); @@ -103,8 +100,7 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_ping_create(false, pq->inflight_id)); GRPC_STATS_INC_HTTP2_PINGS_SENT(exec_ctx); t->ping_state.last_ping_sent_time = now; - if (GRPC_TRACER_ON(grpc_http_trace) || - GRPC_TRACER_ON(grpc_bdp_estimator_trace)) { + if (grpc_http_trace.enabled() || grpc_bdp_estimator_trace.enabled()) { gpr_log(GPR_DEBUG, "%s: Ping sent [%p]: %d/%d", t->is_client ? "CLIENT" : "SERVER", t->peer_string, t->ping_state.pings_before_data_required, @@ -114,16 +110,16 @@ static void maybe_initiate_ping(grpc_exec_ctx *exec_ctx, (t->ping_state.pings_before_data_required != 0); } -static bool update_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_chttp2_stream *s, int64_t send_bytes, - grpc_chttp2_write_cb **list, int64_t *ctr, - grpc_error *error) { +static bool update_list(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_chttp2_stream* s, int64_t send_bytes, + grpc_chttp2_write_cb** list, int64_t* ctr, + grpc_error* error) { bool sched_any = false; - grpc_chttp2_write_cb *cb = *list; - *list = NULL; + grpc_chttp2_write_cb* cb = *list; + *list = nullptr; *ctr += send_bytes; while (cb) { - grpc_chttp2_write_cb *next = cb->next; + grpc_chttp2_write_cb* next = cb->next; if (cb->call_at_byte <= *ctr) { sched_any = true; finish_write_cb(exec_ctx, t, s, cb, GRPC_ERROR_REF(error)); @@ -136,8 +132,8 @@ static bool update_list(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, return sched_any; } -static void report_stall(grpc_chttp2_transport *t, grpc_chttp2_stream *s, - const char *staller) { +static void report_stall(grpc_chttp2_transport* t, grpc_chttp2_stream* s, + const char* staller) { gpr_log( GPR_DEBUG, "%s:%p stream %d stalled by %s [fc:pending=%" PRIdPTR ":flowed=%" PRId64 @@ -155,7 +151,7 @@ static void report_stall(grpc_chttp2_transport *t, grpc_chttp2_stream *s, s->flow_control->remote_window_delta()); } -static bool stream_ref_if_not_destroyed(gpr_refcount *r) { +static bool stream_ref_if_not_destroyed(gpr_refcount* r) { gpr_atm count; do { count = gpr_atm_acq_load(&r->count); @@ -165,12 +161,12 @@ static bool stream_ref_if_not_destroyed(gpr_refcount *r) { } /* How many bytes would we like to put on the wire during a single syscall */ -static uint32_t target_write_size(grpc_chttp2_transport *t) { +static uint32_t target_write_size(grpc_chttp2_transport* t) { return 1024 * 1024; } // Returns true if initial_metadata contains only default headers. -static bool is_default_initial_metadata(grpc_metadata_batch *initial_metadata) { +static bool is_default_initial_metadata(grpc_metadata_batch* initial_metadata) { return initial_metadata->list.default_count == initial_metadata->list.count; } @@ -179,13 +175,13 @@ class StreamWriteContext; class WriteContext { public: - WriteContext(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) : t_(t) { + WriteContext(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t) : t_(t) { GRPC_STATS_INC_HTTP2_WRITES_BEGUN(exec_ctx); GPR_TIMER_BEGIN("grpc_chttp2_begin_write", 0); } // TODO(ctiller): make this the destructor - void FlushStats(grpc_exec_ctx *exec_ctx) { + void FlushStats(grpc_exec_ctx* exec_ctx) { GRPC_STATS_INC_HTTP2_SEND_INITIAL_METADATA_PER_WRITE( exec_ctx, initial_metadata_writes_); GRPC_STATS_INC_HTTP2_SEND_MESSAGE_PER_WRITE(exec_ctx, message_writes_); @@ -194,7 +190,7 @@ class WriteContext { GRPC_STATS_INC_HTTP2_SEND_FLOWCTL_PER_WRITE(exec_ctx, flow_control_writes_); } - void FlushSettings(grpc_exec_ctx *exec_ctx) { + void FlushSettings(grpc_exec_ctx* exec_ctx) { if (t_->dirtied_local_settings && !t_->sent_local_settings) { grpc_slice_buffer_add( &t_->outbuf, grpc_chttp2_settings_create( @@ -208,13 +204,13 @@ class WriteContext { } } - void FlushQueuedBuffers(grpc_exec_ctx *exec_ctx) { + void FlushQueuedBuffers(grpc_exec_ctx* exec_ctx) { /* simple writes are queued to qbuf, and flushed here */ grpc_slice_buffer_move_into(&t_->qbuf, &t_->outbuf); GPR_ASSERT(t_->qbuf.count == 0); } - void FlushWindowUpdates(grpc_exec_ctx *exec_ctx) { + void FlushWindowUpdates(grpc_exec_ctx* exec_ctx) { uint32_t transport_announce = t_->flow_control->MaybeSendUpdate(t_->outbuf.count > 0); if (transport_announce) { @@ -234,7 +230,7 @@ class WriteContext { t_->ping_ack_count = 0; } - void EnactHpackSettings(grpc_exec_ctx *exec_ctx) { + void EnactHpackSettings(grpc_exec_ctx* exec_ctx) { grpc_chttp2_hpack_compressor_set_max_table_size( &t_->hpack_compressor, t_->settings[GRPC_PEER_SETTINGS] @@ -242,7 +238,7 @@ class WriteContext { } void UpdateStreamsNoLongerStalled() { - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; while (grpc_chttp2_list_pop_stalled_by_transport(t_, &s)) { if (t_->closed_with_error == GRPC_ERROR_NONE && grpc_chttp2_list_add_writable_stream(t_, s)) { @@ -253,13 +249,13 @@ class WriteContext { } } - grpc_chttp2_stream *NextStream() { + grpc_chttp2_stream* NextStream() { if (t_->outbuf.length > target_write_size(t_)) { result_.partial = true; return nullptr; } - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; if (!grpc_chttp2_list_pop_writable_stream(t_, &s)) { return nullptr; } @@ -281,7 +277,7 @@ class WriteContext { void NoteScheduledResults() { result_.early_results_scheduled = true; } - grpc_chttp2_transport *transport() const { return t_; } + grpc_chttp2_transport* transport() const { return t_; } grpc_chttp2_begin_write_result Result() { result_.writing = t_->outbuf.count > 0; @@ -289,7 +285,7 @@ class WriteContext { } private: - grpc_chttp2_transport *const t_; + grpc_chttp2_transport* const t_; /* stats histogram counters: we increment these throughout this function, and at the end publish to the central stats histograms */ @@ -302,8 +298,8 @@ class WriteContext { class DataSendContext { public: - DataSendContext(WriteContext *write_context, grpc_chttp2_transport *t, - grpc_chttp2_stream *s) + DataSendContext(WriteContext* write_context, grpc_chttp2_transport* t, + grpc_chttp2_stream* s) : write_context_(write_context), t_(t), s_(s), @@ -322,7 +318,7 @@ class DataSendContext { GPR_MIN(stream_remote_window(), t_->flow_control->remote_window())); } - bool AnyOutgoing() const { return max_outgoing() != 0; } + bool AnyOutgoing() const { return max_outgoing() > 0; } void FlushCompressedBytes() { uint32_t send_bytes = @@ -330,24 +326,25 @@ class DataSendContext { bool is_last_data_frame = (send_bytes == s_->compressed_data_buffer.length && s_->flow_controlled_buffer.length == 0 && - s_->fetching_send_message == NULL); - if (is_last_data_frame && s_->send_trailing_metadata != NULL && - s_->stream_compression_ctx != NULL) { - if (!grpc_stream_compress(s_->stream_compression_ctx, - &s_->flow_controlled_buffer, - &s_->compressed_data_buffer, NULL, MAX_SIZE_T, - GRPC_STREAM_COMPRESSION_FLUSH_FINISH)) { + s_->fetching_send_message == nullptr); + if (is_last_data_frame && s_->send_trailing_metadata != nullptr && + s_->stream_compression_ctx != nullptr) { + if (!grpc_stream_compress( + s_->stream_compression_ctx, &s_->flow_controlled_buffer, + &s_->compressed_data_buffer, nullptr, MAX_SIZE_T, + GRPC_STREAM_COMPRESSION_FLUSH_FINISH)) { gpr_log(GPR_ERROR, "Stream compression failed."); } grpc_stream_compression_context_destroy(s_->stream_compression_ctx); - s_->stream_compression_ctx = NULL; + s_->stream_compression_ctx = nullptr; /* After finish, bytes in s->compressed_data_buffer may be * more than max_outgoing. Start another round of the current * while loop so that send_bytes and is_last_data_frame are * recalculated. */ return; } - is_last_frame_ = is_last_data_frame && s_->send_trailing_metadata != NULL && + is_last_frame_ = is_last_data_frame && + s_->send_trailing_metadata != nullptr && grpc_metadata_batch_is_empty(s_->send_trailing_metadata); grpc_chttp2_encode_data(s_->id, &s_->compressed_data_buffer, send_bytes, is_last_frame_, &s_->stats.outgoing, &t_->outbuf); @@ -358,14 +355,14 @@ class DataSendContext { } void CompressMoreBytes() { - if (s_->stream_compression_ctx == NULL) { + if (s_->stream_compression_ctx == nullptr) { s_->stream_compression_ctx = grpc_stream_compression_context_create(s_->stream_compression_method); } s_->uncompressed_data_size = s_->flow_controlled_buffer.length; if (!grpc_stream_compress(s_->stream_compression_ctx, &s_->flow_controlled_buffer, - &s_->compressed_data_buffer, NULL, MAX_SIZE_T, + &s_->compressed_data_buffer, nullptr, MAX_SIZE_T, GRPC_STREAM_COMPRESSION_FLUSH_SYNC)) { gpr_log(GPR_ERROR, "Stream compression failed."); } @@ -373,7 +370,7 @@ class DataSendContext { bool is_last_frame() const { return is_last_frame_; } - void CallCallbacks(grpc_exec_ctx *exec_ctx) { + void CallCallbacks(grpc_exec_ctx* exec_ctx) { if (update_list(exec_ctx, t_, s_, (int64_t)(s_->sending_bytes - sending_bytes_before_), &s_->on_flow_controlled_cbs, @@ -383,26 +380,26 @@ class DataSendContext { } private: - WriteContext *write_context_; - grpc_chttp2_transport *t_; - grpc_chttp2_stream *s_; + WriteContext* write_context_; + grpc_chttp2_transport* t_; + grpc_chttp2_stream* s_; const size_t sending_bytes_before_; bool is_last_frame_ = false; }; class StreamWriteContext { public: - StreamWriteContext(WriteContext *write_context, grpc_chttp2_stream *s) + StreamWriteContext(WriteContext* write_context, grpc_chttp2_stream* s) : write_context_(write_context), t_(write_context->transport()), s_(s) { GRPC_CHTTP2_IF_TRACING( gpr_log(GPR_DEBUG, "W:%p %s[%d] im-(sent,send)=(%d,%d) announce=%d", t_, t_->is_client ? "CLIENT" : "SERVER", s->id, - s->sent_initial_metadata, s->send_initial_metadata != NULL, + s->sent_initial_metadata, s->send_initial_metadata != nullptr, (int)(s->flow_control->local_window_delta() - s->flow_control->announced_window_delta()))); } - void FlushInitialMetadata(grpc_exec_ctx *exec_ctx) { + void FlushInitialMetadata(grpc_exec_ctx* exec_ctx) { /* send initial metadata if it's available */ if (s_->sent_initial_metadata) return; if (s_->send_initial_metadata == nullptr) return; @@ -429,13 +426,13 @@ class StreamWriteContext { [GRPC_CHTTP2_SETTINGS_MAX_FRAME_SIZE], // max_frame_size &s_->stats.outgoing // stats }; - grpc_chttp2_encode_header(exec_ctx, &t_->hpack_compressor, NULL, 0, + grpc_chttp2_encode_header(exec_ctx, &t_->hpack_compressor, nullptr, 0, s_->send_initial_metadata, &hopt, &t_->outbuf); write_context_->ResetPingRecvClock(); write_context_->IncInitialMetadataWrites(); } - s_->send_initial_metadata = NULL; + s_->send_initial_metadata = nullptr; s_->sent_initial_metadata = true; write_context_->NoteScheduledResults(); grpc_chttp2_complete_closure_step( @@ -443,7 +440,7 @@ class StreamWriteContext { "send_initial_metadata_finished"); } - void FlushWindowUpdates(grpc_exec_ctx *exec_ctx) { + void FlushWindowUpdates(grpc_exec_ctx* exec_ctx) { /* send any window updates */ const uint32_t stream_announce = s_->flow_control->MaybeSendUpdate(); if (stream_announce == 0) return; @@ -455,7 +452,7 @@ class StreamWriteContext { write_context_->IncWindowUpdateWrites(); } - void FlushData(grpc_exec_ctx *exec_ctx) { + void FlushData(grpc_exec_ctx* exec_ctx) { if (!s_->sent_initial_metadata) return; if (s_->flow_controlled_buffer.length == 0 && @@ -499,11 +496,11 @@ class StreamWriteContext { write_context_->IncMessageWrites(); } - void FlushTrailingMetadata(grpc_exec_ctx *exec_ctx) { + void FlushTrailingMetadata(grpc_exec_ctx* exec_ctx) { if (!s_->sent_initial_metadata) return; - if (s_->send_trailing_metadata == NULL) return; - if (s_->fetching_send_message != NULL) return; + if (s_->send_trailing_metadata == nullptr) return; + if (s_->fetching_send_message != nullptr) return; if (s_->flow_controlled_buffer.length != 0) return; if (s_->compressed_data_buffer.length != 0) return; @@ -543,20 +540,20 @@ class StreamWriteContext { gpr_log(GPR_INFO, "not sending initial_metadata (Trailers-Only)")); // When sending Trailers-Only, we need to move the :status and // content-type headers to the trailers. - if (s_->send_initial_metadata->idx.named.status != NULL) { + if (s_->send_initial_metadata->idx.named.status != nullptr) { extra_headers_for_trailing_metadata_ [num_extra_headers_for_trailing_metadata_++] = &s_->send_initial_metadata->idx.named.status->md; } - if (s_->send_initial_metadata->idx.named.content_type != NULL) { + if (s_->send_initial_metadata->idx.named.content_type != nullptr) { extra_headers_for_trailing_metadata_ [num_extra_headers_for_trailing_metadata_++] = &s_->send_initial_metadata->idx.named.content_type->md; } } - void SentLastFrame(grpc_exec_ctx *exec_ctx) { - s_->send_trailing_metadata = NULL; + void SentLastFrame(grpc_exec_ctx* exec_ctx) { + s_->send_trailing_metadata = nullptr; s_->sent_trailing_metadata = true; if (!t_->is_client && !s_->read_closed) { @@ -568,17 +565,17 @@ class StreamWriteContext { GRPC_ERROR_NONE); } - WriteContext *const write_context_; - grpc_chttp2_transport *const t_; - grpc_chttp2_stream *const s_; + WriteContext* const write_context_; + grpc_chttp2_transport* const t_; + grpc_chttp2_stream* const s_; bool stream_became_writable_ = false; - grpc_mdelem *extra_headers_for_trailing_metadata_[2]; + grpc_mdelem* extra_headers_for_trailing_metadata_[2]; size_t num_extra_headers_for_trailing_metadata_ = 0; }; } // namespace grpc_chttp2_begin_write_result grpc_chttp2_begin_write( - grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) { + grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t) { WriteContext ctx(exec_ctx, t); ctx.FlushSettings(exec_ctx); ctx.FlushPingAcks(); @@ -591,7 +588,7 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( /* for each grpc_chttp2_stream that's become writable, frame it's data (according to available window sizes) and add to the output buffer */ - while (grpc_chttp2_stream *s = ctx.NextStream()) { + while (grpc_chttp2_stream* s = ctx.NextStream()) { StreamWriteContext stream_ctx(&ctx, s); stream_ctx.FlushInitialMetadata(exec_ctx); stream_ctx.FlushWindowUpdates(exec_ctx); @@ -619,10 +616,10 @@ grpc_chttp2_begin_write_result grpc_chttp2_begin_write( return ctx.Result(); } -void grpc_chttp2_end_write(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, - grpc_error *error) { +void grpc_chttp2_end_write(grpc_exec_ctx* exec_ctx, grpc_chttp2_transport* t, + grpc_error* error) { GPR_TIMER_BEGIN("grpc_chttp2_end_write", 0); - grpc_chttp2_stream *s; + grpc_chttp2_stream* s; while (grpc_chttp2_list_pop_writing_stream(t, &s)) { if (s->sending_bytes != 0) { diff --git a/src/core/ext/transport/cronet/client/secure/cronet_channel_create.cc b/src/core/ext/transport/cronet/client/secure/cronet_channel_create.cc index b280487ca3..d590ba0371 100644 --- a/src/core/ext/transport/cronet/client/secure/cronet_channel_create.cc +++ b/src/core/ext/transport/cronet/client/secure/cronet_channel_create.cc @@ -33,20 +33,20 @@ // Cronet transport object typedef struct cronet_transport { grpc_transport base; // must be first element in this structure - void *engine; - char *host; + void* engine; + char* host; } cronet_transport; extern grpc_transport_vtable grpc_cronet_vtable; -GRPCAPI grpc_channel *grpc_cronet_secure_channel_create( - void *engine, const char *target, const grpc_channel_args *args, - void *reserved) { +GRPCAPI grpc_channel* grpc_cronet_secure_channel_create( + void* engine, const char* target, const grpc_channel_args* args, + void* reserved) { gpr_log(GPR_DEBUG, "grpc_create_cronet_transport: stream_engine = %p, target=%s", engine, target); - grpc_transport *ct = + grpc_transport* ct = grpc_create_cronet_transport(engine, target, args, reserved); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; diff --git a/src/core/ext/transport/cronet/transport/cronet_api_dummy.cc b/src/core/ext/transport/cronet/transport/cronet_api_dummy.cc index 4f248ad919..578cbb8ac6 100644 --- a/src/core/ext/transport/cronet/transport/cronet_api_dummy.cc +++ b/src/core/ext/transport/cronet/transport/cronet_api_dummy.cc @@ -33,7 +33,7 @@ bidirectional_stream* bidirectional_stream_create( stream_engine* engine, void* annotation, bidirectional_stream_callback* callback) { GPR_ASSERT(0); - return NULL; + return nullptr; } int bidirectional_stream_destroy(bidirectional_stream* stream) { diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.cc b/src/core/ext/transport/cronet/transport/cronet_transport.cc index 97e4f7d72b..4d24efe47b 100644 --- a/src/core/ext/transport/cronet/transport/cronet_transport.cc +++ b/src/core/ext/transport/cronet/transport/cronet_transport.cc @@ -75,17 +75,17 @@ enum e_op_id { /* Cronet callbacks. See cronet_c_for_grpc.h for documentation for each. */ -static void on_stream_ready(bidirectional_stream *); +static void on_stream_ready(bidirectional_stream*); static void on_response_headers_received( - bidirectional_stream *, const bidirectional_stream_header_array *, - const char *); -static void on_write_completed(bidirectional_stream *, const char *); -static void on_read_completed(bidirectional_stream *, char *, int); + bidirectional_stream*, const bidirectional_stream_header_array*, + const char*); +static void on_write_completed(bidirectional_stream*, const char*); +static void on_read_completed(bidirectional_stream*, char*, int); static void on_response_trailers_received( - bidirectional_stream *, const bidirectional_stream_header_array *); -static void on_succeeded(bidirectional_stream *); -static void on_failed(bidirectional_stream *, int); -static void on_canceled(bidirectional_stream *); + bidirectional_stream*, const bidirectional_stream_header_array*); +static void on_succeeded(bidirectional_stream*); +static void on_failed(bidirectional_stream*, int); +static void on_canceled(bidirectional_stream*); static bidirectional_stream_callback cronet_callbacks = { on_stream_ready, on_response_headers_received, @@ -99,8 +99,8 @@ static bidirectional_stream_callback cronet_callbacks = { /* Cronet transport object */ struct grpc_cronet_transport { grpc_transport base; /* must be first element in this structure */ - stream_engine *engine; - char *host; + stream_engine* engine; + char* host; bool use_packet_coalescing; }; typedef struct grpc_cronet_transport grpc_cronet_transport; @@ -109,14 +109,14 @@ typedef struct grpc_cronet_transport grpc_cronet_transport; http://www.catb.org/esr/structure-packing/#_structure_reordering: */ struct read_state { /* vars to store data coming from server */ - char *read_buffer; + char* read_buffer; bool length_field_received; int received_bytes; int remaining_bytes; int length_field; bool compressed; char grpc_header_bytes[GRPC_HEADER_SIZE_IN_BYTES]; - char *payload_field; + char* payload_field; bool read_stream_closed; /* vars for holding data destined for the application */ @@ -132,7 +132,7 @@ struct read_state { }; struct write_state { - char *write_buffer; + char* write_buffer; }; /* track state of one stream op */ @@ -150,7 +150,7 @@ struct op_state { bool pending_recv_trailing_metadata; /* Cronet has not issued a callback of a bidirectional read */ bool pending_read_from_cronet; - grpc_error *cancel_error; + grpc_error* cancel_error; /* data structure for storing data coming from server */ struct read_state rs; /* data structure for storing data going to the server */ @@ -161,22 +161,22 @@ struct op_and_state { grpc_transport_stream_op_batch op; struct op_state state; bool done; - struct stream_obj *s; /* Pointer back to the stream object */ - struct op_and_state *next; /* next op_and_state in the linked list */ + struct stream_obj* s; /* Pointer back to the stream object */ + struct op_and_state* next; /* next op_and_state in the linked list */ }; struct op_storage { int num_pending_ops; - struct op_and_state *head; + struct op_and_state* head; }; struct stream_obj { - gpr_arena *arena; - struct op_and_state *oas; - grpc_transport_stream_op_batch *curr_op; - grpc_cronet_transport *curr_ct; - grpc_stream *curr_gs; - bidirectional_stream *cbs; + gpr_arena* arena; + struct op_and_state* oas; + grpc_transport_stream_op_batch* curr_op; + grpc_cronet_transport* curr_ct; + grpc_stream* curr_gs; + bidirectional_stream* cbs; bidirectional_stream_header_array header_array; /* Stream level state. Some state will be tracked both at stream and stream_op @@ -190,7 +190,7 @@ struct stream_obj { gpr_mu mu; /* Refcount object of the stream */ - grpc_stream_refcount *refcount; + grpc_stream_refcount* refcount; }; typedef struct stream_obj stream_obj; @@ -199,30 +199,30 @@ typedef struct stream_obj stream_obj; grpc_cronet_stream_ref((stream), (reason)) #define GRPC_CRONET_STREAM_UNREF(exec_ctx, stream, reason) \ grpc_cronet_stream_unref((exec_ctx), (stream), (reason)) -void grpc_cronet_stream_ref(stream_obj *s, const char *reason) { +void grpc_cronet_stream_ref(stream_obj* s, const char* reason) { grpc_stream_ref(s->refcount, reason); } -void grpc_cronet_stream_unref(grpc_exec_ctx *exec_ctx, stream_obj *s, - const char *reason) { +void grpc_cronet_stream_unref(grpc_exec_ctx* exec_ctx, stream_obj* s, + const char* reason) { grpc_stream_unref(exec_ctx, s->refcount, reason); } #else #define GRPC_CRONET_STREAM_REF(stream, reason) grpc_cronet_stream_ref((stream)) #define GRPC_CRONET_STREAM_UNREF(exec_ctx, stream, reason) \ grpc_cronet_stream_unref((exec_ctx), (stream)) -void grpc_cronet_stream_ref(stream_obj *s) { grpc_stream_ref(s->refcount); } -void grpc_cronet_stream_unref(grpc_exec_ctx *exec_ctx, stream_obj *s) { +void grpc_cronet_stream_ref(stream_obj* s) { grpc_stream_ref(s->refcount); } +void grpc_cronet_stream_unref(grpc_exec_ctx* exec_ctx, stream_obj* s) { grpc_stream_unref(exec_ctx, s->refcount); } #endif -static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, - struct op_and_state *oas); +static enum e_op_result execute_stream_op(grpc_exec_ctx* exec_ctx, + struct op_and_state* oas); /* Utility function to translate enum into string for printing */ -static const char *op_result_string(enum e_op_result i) { +static const char* op_result_string(enum e_op_result i) { switch (i) { case ACTION_TAKEN_WITH_CALLBACK: return "ACTION_TAKEN_WITH_CALLBACK"; @@ -234,7 +234,7 @@ static const char *op_result_string(enum e_op_result i) { GPR_UNREACHABLE_CODE(return "UNKNOWN"); } -static const char *op_id_string(enum e_op_id i) { +static const char* op_id_string(enum e_op_id i) { switch (i) { case OP_SEND_INITIAL_METADATA: return "OP_SEND_INITIAL_METADATA"; @@ -268,15 +268,15 @@ static const char *op_id_string(enum e_op_id i) { return "UNKNOWN"; } -static void null_and_maybe_free_read_buffer(stream_obj *s) { +static void null_and_maybe_free_read_buffer(stream_obj* s) { if (s->state.rs.read_buffer && s->state.rs.read_buffer != s->state.rs.grpc_header_bytes) { gpr_free(s->state.rs.read_buffer); } - s->state.rs.read_buffer = NULL; + s->state.rs.read_buffer = nullptr; } -static void maybe_flush_read(stream_obj *s) { +static void maybe_flush_read(stream_obj* s) { /* To enter flush read state (discarding all the buffered messages in * transport layer), two conditions must be satisfied: 1) non-zero grpc status * has been received, and 2) an op requesting the status code @@ -289,7 +289,7 @@ static void maybe_flush_read(stream_obj *s) { CRONET_LOG(GPR_DEBUG, "%p: Flush read", s); s->state.flush_read = true; null_and_maybe_free_read_buffer(s); - s->state.rs.read_buffer = (char *)gpr_malloc(GRPC_FLUSH_READ_SIZE); + s->state.rs.read_buffer = (char*)gpr_malloc(GRPC_FLUSH_READ_SIZE); if (!s->state.pending_read_from_cronet) { CRONET_LOG(GPR_DEBUG, "bidirectional_stream_read(%p)", s->cbs); bidirectional_stream_read(s->cbs, s->state.rs.read_buffer, @@ -300,8 +300,8 @@ static void maybe_flush_read(stream_obj *s) { } } -static grpc_error *make_error_with_desc(int error_code, const char *desc) { - grpc_error *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(desc); +static grpc_error* make_error_with_desc(int error_code, const char* desc) { + grpc_error* error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(desc); error = grpc_error_set_int(error, GRPC_ERROR_INT_GRPC_STATUS, error_code); return error; } @@ -309,13 +309,13 @@ static grpc_error *make_error_with_desc(int error_code, const char *desc) { /* Add a new stream op to op storage. */ -static void add_to_storage(struct stream_obj *s, - grpc_transport_stream_op_batch *op) { - struct op_storage *storage = &s->storage; +static void add_to_storage(struct stream_obj* s, + grpc_transport_stream_op_batch* op) { + struct op_storage* storage = &s->storage; /* add new op at the beginning of the linked list. The memory is freed in remove_from_storage */ - struct op_and_state *new_op = - (struct op_and_state *)gpr_malloc(sizeof(struct op_and_state)); + struct op_and_state* new_op = + (struct op_and_state*)gpr_malloc(sizeof(struct op_and_state)); memcpy(&new_op->op, op, sizeof(grpc_transport_stream_op_batch)); memset(&new_op->state, 0, sizeof(new_op->state)); new_op->s = s; @@ -339,10 +339,10 @@ static void add_to_storage(struct stream_obj *s, /* Traverse the linked list and delete op and free memory */ -static void remove_from_storage(struct stream_obj *s, - struct op_and_state *oas) { - struct op_and_state *curr; - if (s->storage.head == NULL || oas == NULL) { +static void remove_from_storage(struct stream_obj* s, + struct op_and_state* oas) { + struct op_and_state* curr; + if (s->storage.head == nullptr || oas == nullptr) { return; } if (s->storage.head == oas) { @@ -352,7 +352,7 @@ static void remove_from_storage(struct stream_obj *s, CRONET_LOG(GPR_DEBUG, "Freed %p. Now %d in the queue", oas, s->storage.num_pending_ops); } else { - for (curr = s->storage.head; curr != NULL; curr = curr->next) { + for (curr = s->storage.head; curr != nullptr; curr = curr->next) { if (curr->next == oas) { curr->next = oas->next; s->storage.num_pending_ops--; @@ -360,7 +360,7 @@ static void remove_from_storage(struct stream_obj *s, s->storage.num_pending_ops); gpr_free(oas); break; - } else if (curr->next == NULL) { + } else if (curr->next == nullptr) { CRONET_LOG(GPR_ERROR, "Reached end of LL and did not find op to free"); } } @@ -373,9 +373,9 @@ static void remove_from_storage(struct stream_obj *s, This can get executed from the Cronet network thread via cronet callback or on the application supplied thread via the perform_stream_op function. */ -static void execute_from_storage(grpc_exec_ctx *exec_ctx, stream_obj *s) { +static void execute_from_storage(grpc_exec_ctx* exec_ctx, stream_obj* s) { gpr_mu_lock(&s->mu); - for (struct op_and_state *curr = s->storage.head; curr != NULL;) { + for (struct op_and_state* curr = s->storage.head; curr != nullptr;) { CRONET_LOG(GPR_DEBUG, "calling op at %p. done = %d", curr, curr->done); GPR_ASSERT(curr->done == 0); enum e_op_result result = execute_stream_op(exec_ctx, curr); @@ -383,7 +383,7 @@ static void execute_from_storage(grpc_exec_ctx *exec_ctx, stream_obj *s) { op_result_string(result)); /* if this op is done, then remove it and free memory */ if (curr->done) { - struct op_and_state *next = curr->next; + struct op_and_state* next = curr->next; remove_from_storage(s, curr); curr = next; } @@ -400,22 +400,22 @@ static void execute_from_storage(grpc_exec_ctx *exec_ctx, stream_obj *s) { /* Cronet callback */ -static void on_failed(bidirectional_stream *stream, int net_error) { +static void on_failed(bidirectional_stream* stream, int net_error) { CRONET_LOG(GPR_DEBUG, "on_failed(%p, %d)", stream, net_error); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; gpr_mu_lock(&s->mu); bidirectional_stream_destroy(s->cbs); s->state.state_callback_received[OP_FAILED] = true; - s->cbs = NULL; + s->cbs = nullptr; if (s->header_array.headers) { gpr_free(s->header_array.headers); - s->header_array.headers = NULL; + s->header_array.headers = nullptr; } if (s->state.ws.write_buffer) { gpr_free(s->state.ws.write_buffer); - s->state.ws.write_buffer = NULL; + s->state.ws.write_buffer = nullptr; } null_and_maybe_free_read_buffer(s); gpr_mu_unlock(&s->mu); @@ -427,22 +427,22 @@ static void on_failed(bidirectional_stream *stream, int net_error) { /* Cronet callback */ -static void on_canceled(bidirectional_stream *stream) { +static void on_canceled(bidirectional_stream* stream) { CRONET_LOG(GPR_DEBUG, "on_canceled(%p)", stream); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; gpr_mu_lock(&s->mu); bidirectional_stream_destroy(s->cbs); s->state.state_callback_received[OP_CANCELED] = true; - s->cbs = NULL; + s->cbs = nullptr; if (s->header_array.headers) { gpr_free(s->header_array.headers); - s->header_array.headers = NULL; + s->header_array.headers = nullptr; } if (s->state.ws.write_buffer) { gpr_free(s->state.ws.write_buffer); - s->state.ws.write_buffer = NULL; + s->state.ws.write_buffer = nullptr; } null_and_maybe_free_read_buffer(s); gpr_mu_unlock(&s->mu); @@ -454,15 +454,15 @@ static void on_canceled(bidirectional_stream *stream) { /* Cronet callback */ -static void on_succeeded(bidirectional_stream *stream) { +static void on_succeeded(bidirectional_stream* stream) { CRONET_LOG(GPR_DEBUG, "on_succeeded(%p)", stream); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; gpr_mu_lock(&s->mu); bidirectional_stream_destroy(s->cbs); s->state.state_callback_received[OP_SUCCEEDED] = true; - s->cbs = NULL; + s->cbs = nullptr; null_and_maybe_free_read_buffer(s); gpr_mu_unlock(&s->mu); execute_from_storage(&exec_ctx, s); @@ -473,18 +473,18 @@ static void on_succeeded(bidirectional_stream *stream) { /* Cronet callback */ -static void on_stream_ready(bidirectional_stream *stream) { +static void on_stream_ready(bidirectional_stream* stream) { CRONET_LOG(GPR_DEBUG, "W: on_stream_ready(%p)", stream); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; - grpc_cronet_transport *t = (grpc_cronet_transport *)s->curr_ct; + stream_obj* s = (stream_obj*)stream->annotation; + grpc_cronet_transport* t = (grpc_cronet_transport*)s->curr_ct; gpr_mu_lock(&s->mu); s->state.state_op_done[OP_SEND_INITIAL_METADATA] = true; s->state.state_callback_received[OP_SEND_INITIAL_METADATA] = true; /* Free the memory allocated for headers */ if (s->header_array.headers) { gpr_free(s->header_array.headers); - s->header_array.headers = NULL; + s->header_array.headers = nullptr; } /* Send the initial metadata on wire if there is no SEND_MESSAGE or * SEND_TRAILING_METADATA ops pending */ @@ -503,13 +503,13 @@ static void on_stream_ready(bidirectional_stream *stream) { Cronet callback */ static void on_response_headers_received( - bidirectional_stream *stream, - const bidirectional_stream_header_array *headers, - const char *negotiated_protocol) { + bidirectional_stream* stream, + const bidirectional_stream_header_array* headers, + const char* negotiated_protocol) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; CRONET_LOG(GPR_DEBUG, "R: on_response_headers_received(%p, %p, %s)", stream, headers, negotiated_protocol); - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; /* Identify if this is a header or a trailer (in a trailer-only response case) */ @@ -526,15 +526,15 @@ static void on_response_headers_received( grpc_chttp2_incoming_metadata_buffer_init(&s->state.rs.initial_metadata, s->arena); for (size_t i = 0; i < headers->count; i++) { - GRPC_LOG_IF_ERROR( - "on_response_headers_received", - grpc_chttp2_incoming_metadata_buffer_add( - &exec_ctx, &s->state.rs.initial_metadata, - grpc_mdelem_from_slices( - &exec_ctx, grpc_slice_intern(grpc_slice_from_static_string( - headers->headers[i].key)), - grpc_slice_intern(grpc_slice_from_static_string( - headers->headers[i].value))))); + GRPC_LOG_IF_ERROR("on_response_headers_received", + grpc_chttp2_incoming_metadata_buffer_add( + &exec_ctx, &s->state.rs.initial_metadata, + grpc_mdelem_from_slices( + &exec_ctx, + grpc_slice_intern(grpc_slice_from_static_string( + headers->headers[i].key)), + grpc_slice_intern(grpc_slice_from_static_string( + headers->headers[i].value))))); } s->state.state_callback_received[OP_RECV_INITIAL_METADATA] = true; if (!(s->state.state_op_done[OP_CANCEL_ERROR] || @@ -559,14 +559,14 @@ static void on_response_headers_received( /* Cronet callback */ -static void on_write_completed(bidirectional_stream *stream, const char *data) { +static void on_write_completed(bidirectional_stream* stream, const char* data) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; CRONET_LOG(GPR_DEBUG, "W: on_write_completed(%p, %s)", stream, data); gpr_mu_lock(&s->mu); if (s->state.ws.write_buffer) { gpr_free(s->state.ws.write_buffer); - s->state.ws.write_buffer = NULL; + s->state.ws.write_buffer = nullptr; } s->state.state_callback_received[OP_SEND_MESSAGE] = true; gpr_mu_unlock(&s->mu); @@ -577,10 +577,10 @@ static void on_write_completed(bidirectional_stream *stream, const char *data) { /* Cronet callback */ -static void on_read_completed(bidirectional_stream *stream, char *data, +static void on_read_completed(bidirectional_stream* stream, char* data, int count) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - stream_obj *s = (stream_obj *)stream->annotation; + stream_obj* s = (stream_obj*)stream->annotation; CRONET_LOG(GPR_DEBUG, "R: on_read_completed(%p, %p, %d)", stream, data, count); gpr_mu_lock(&s->mu); @@ -620,13 +620,13 @@ static void on_read_completed(bidirectional_stream *stream, char *data, Cronet callback */ static void on_response_trailers_received( - bidirectional_stream *stream, - const bidirectional_stream_header_array *trailers) { + bidirectional_stream* stream, + const bidirectional_stream_header_array* trailers) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; CRONET_LOG(GPR_DEBUG, "R: on_response_trailers_received(%p,%p)", stream, trailers); - stream_obj *s = (stream_obj *)stream->annotation; - grpc_cronet_transport *t = (grpc_cronet_transport *)s->curr_ct; + stream_obj* s = (stream_obj*)stream->annotation; + grpc_cronet_transport* t = (grpc_cronet_transport*)s->curr_ct; gpr_mu_lock(&s->mu); memset(&s->state.rs.trailing_metadata, 0, sizeof(s->state.rs.trailing_metadata)); @@ -636,15 +636,15 @@ static void on_response_trailers_received( for (size_t i = 0; i < trailers->count; i++) { CRONET_LOG(GPR_DEBUG, "trailer key=%s, value=%s", trailers->headers[i].key, trailers->headers[i].value); - GRPC_LOG_IF_ERROR( - "on_response_trailers_received", - grpc_chttp2_incoming_metadata_buffer_add( - &exec_ctx, &s->state.rs.trailing_metadata, - grpc_mdelem_from_slices( - &exec_ctx, grpc_slice_intern(grpc_slice_from_static_string( - trailers->headers[i].key)), - grpc_slice_intern(grpc_slice_from_static_string( - trailers->headers[i].value))))); + GRPC_LOG_IF_ERROR("on_response_trailers_received", + grpc_chttp2_incoming_metadata_buffer_add( + &exec_ctx, &s->state.rs.trailing_metadata, + grpc_mdelem_from_slices( + &exec_ctx, + grpc_slice_intern(grpc_slice_from_static_string( + trailers->headers[i].key)), + grpc_slice_intern(grpc_slice_from_static_string( + trailers->headers[i].value))))); s->state.rs.trailing_metadata_valid = true; if (0 == strcmp(trailers->headers[i].key, "grpc-status") && 0 != strcmp(trailers->headers[i].value, "0")) { @@ -679,17 +679,17 @@ static void on_response_trailers_received( Utility function that takes the data from s->write_slice_buffer and assembles into a contiguous byte stream with 5 byte gRPC header prepended. */ -static void create_grpc_frame(grpc_exec_ctx *exec_ctx, - grpc_slice_buffer *write_slice_buffer, - char **pp_write_buffer, - size_t *p_write_buffer_size, uint32_t flags) { +static void create_grpc_frame(grpc_exec_ctx* exec_ctx, + grpc_slice_buffer* write_slice_buffer, + char** pp_write_buffer, + size_t* p_write_buffer_size, uint32_t flags) { grpc_slice slice = grpc_slice_buffer_take_first(write_slice_buffer); size_t length = GRPC_SLICE_LENGTH(slice); *p_write_buffer_size = length + GRPC_HEADER_SIZE_IN_BYTES; /* This is freed in the on_write_completed callback */ - char *write_buffer = (char *)gpr_malloc(length + GRPC_HEADER_SIZE_IN_BYTES); + char* write_buffer = (char*)gpr_malloc(length + GRPC_HEADER_SIZE_IN_BYTES); *pp_write_buffer = write_buffer; - uint8_t *p = (uint8_t *)write_buffer; + uint8_t* p = (uint8_t*)write_buffer; /* Append 5 byte header */ /* Compressed flag */ *p++ = (uint8_t)((flags & GRPC_WRITE_INTERNAL_COMPRESS) ? 1 : 0); @@ -707,20 +707,20 @@ static void create_grpc_frame(grpc_exec_ctx *exec_ctx, Convert metadata in a format that Cronet can consume */ static void convert_metadata_to_cronet_headers( - grpc_linked_mdelem *head, const char *host, char **pp_url, - bidirectional_stream_header **pp_headers, size_t *p_num_headers, - const char **method) { - grpc_linked_mdelem *curr = head; + grpc_linked_mdelem* head, const char* host, char** pp_url, + bidirectional_stream_header** pp_headers, size_t* p_num_headers, + const char** method) { + grpc_linked_mdelem* curr = head; /* Walk the linked list and get number of header fields */ size_t num_headers_available = 0; - while (curr != NULL) { + while (curr != nullptr) { curr = curr->next; num_headers_available++; } /* Allocate enough memory. It is freed in the on_stream_ready callback */ - bidirectional_stream_header *headers = - (bidirectional_stream_header *)gpr_malloc( + bidirectional_stream_header* headers = + (bidirectional_stream_header*)gpr_malloc( sizeof(bidirectional_stream_header) * num_headers_available); *pp_headers = headers; @@ -734,8 +734,8 @@ static void convert_metadata_to_cronet_headers( while (num_headers < num_headers_available) { grpc_mdelem mdelem = curr->md; curr = curr->next; - char *key = grpc_slice_to_c_string(GRPC_MDKEY(mdelem)); - char *value = grpc_slice_to_c_string(GRPC_MDVALUE(mdelem)); + char* key = grpc_slice_to_c_string(GRPC_MDKEY(mdelem)); + char* value = grpc_slice_to_c_string(GRPC_MDVALUE(mdelem)); if (grpc_slice_eq(GRPC_MDKEY(mdelem), GRPC_MDSTR_SCHEME) || grpc_slice_eq(GRPC_MDKEY(mdelem), GRPC_MDSTR_AUTHORITY)) { /* Cronet populates these fields on its own */ @@ -765,17 +765,17 @@ static void convert_metadata_to_cronet_headers( headers[num_headers].key = key; headers[num_headers].value = value; num_headers++; - if (curr == NULL) { + if (curr == nullptr) { break; } } *p_num_headers = (size_t)num_headers; } -static void parse_grpc_header(const uint8_t *data, int *length, - bool *compressed) { +static void parse_grpc_header(const uint8_t* data, int* length, + bool* compressed) { const uint8_t c = *data; - const uint8_t *p = data + 1; + const uint8_t* p = data + 1; *compressed = ((c & 0x01) == 0x01); *length = 0; *length |= ((uint8_t)*p++) << 24; @@ -784,8 +784,8 @@ static void parse_grpc_header(const uint8_t *data, int *length, *length |= ((uint8_t)*p++); } -static bool header_has_authority(grpc_linked_mdelem *head) { - while (head != NULL) { +static bool header_has_authority(grpc_linked_mdelem* head) { + while (head != nullptr) { if (grpc_slice_eq(GRPC_MDKEY(head->md), GRPC_MDSTR_AUTHORITY)) { return true; } @@ -798,11 +798,11 @@ static bool header_has_authority(grpc_linked_mdelem *head) { Op Execution: Decide if one of the actions contained in the stream op can be executed. This is the heart of the state machine. */ -static bool op_can_be_run(grpc_transport_stream_op_batch *curr_op, - struct stream_obj *s, struct op_state *op_state, +static bool op_can_be_run(grpc_transport_stream_op_batch* curr_op, + struct stream_obj* s, struct op_state* op_state, enum e_op_id op_id) { - struct op_state *stream_state = &s->state; - grpc_cronet_transport *t = s->curr_ct; + struct op_state* stream_state = &s->state; + grpc_cronet_transport* t = s->curr_ct; bool result = true; /* When call is canceled, every op can be run, except under following conditions @@ -981,19 +981,19 @@ static bool op_can_be_run(grpc_transport_stream_op_batch *curr_op, /* TODO (makdharma): Break down this function in smaller chunks for readability. */ -static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, - struct op_and_state *oas) { - grpc_transport_stream_op_batch *stream_op = &oas->op; - struct stream_obj *s = oas->s; - grpc_cronet_transport *t = (grpc_cronet_transport *)s->curr_ct; - struct op_state *stream_state = &s->state; +static enum e_op_result execute_stream_op(grpc_exec_ctx* exec_ctx, + struct op_and_state* oas) { + grpc_transport_stream_op_batch* stream_op = &oas->op; + struct stream_obj* s = oas->s; + grpc_cronet_transport* t = (grpc_cronet_transport*)s->curr_ct; + struct op_state* stream_state = &s->state; enum e_op_result result = NO_ACTION_POSSIBLE; if (stream_op->send_initial_metadata && op_can_be_run(stream_op, s, &oas->state, OP_SEND_INITIAL_METADATA)) { CRONET_LOG(GPR_DEBUG, "running: %p OP_SEND_INITIAL_METADATA", oas); /* Start new cronet stream. It is destroyed in on_succeeded, on_canceled, * on_failed */ - GPR_ASSERT(s->cbs == NULL); + GPR_ASSERT(s->cbs == nullptr); GPR_ASSERT(!stream_state->state_op_done[OP_SEND_INITIAL_METADATA]); s->cbs = bidirectional_stream_create(t->engine, s->curr_gs, &cronet_callbacks); @@ -1002,9 +1002,9 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, bidirectional_stream_disable_auto_flush(s->cbs, true); bidirectional_stream_delay_request_headers_until_flush(s->cbs, true); } - char *url = NULL; - const char *method = "POST"; - s->header_array.headers = NULL; + char* url = nullptr; + const char* method = "POST"; + s->header_array.headers = nullptr; convert_metadata_to_cronet_headers(stream_op->payload->send_initial_metadata .send_initial_metadata->list.head, t->host, &url, &s->header_array.headers, @@ -1018,8 +1018,8 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, unsigned int header_index; for (header_index = 0; header_index < s->header_array.count; header_index++) { - gpr_free((void *)s->header_array.headers[header_index].key); - gpr_free((void *)s->header_array.headers[header_index].value); + gpr_free((void*)s->header_array.headers[header_index].key); + gpr_free((void*)s->header_array.headers[header_index].value); } stream_state->state_op_done[OP_SEND_INITIAL_METADATA] = true; if (t->use_packet_coalescing) { @@ -1042,7 +1042,7 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, if (1 != grpc_byte_stream_next( exec_ctx, stream_op->payload->send_message.send_message, stream_op->payload->send_message.send_message->length, - NULL)) { + nullptr)) { /* Should never reach here */ GPR_ASSERT(false); } @@ -1177,14 +1177,14 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, stream_state->rs.remaining_bytes == 0) { /* Start a read operation for data */ stream_state->rs.length_field_received = true; - parse_grpc_header((const uint8_t *)stream_state->rs.read_buffer, + parse_grpc_header((const uint8_t*)stream_state->rs.read_buffer, &stream_state->rs.length_field, &stream_state->rs.compressed); CRONET_LOG(GPR_DEBUG, "length field = %d", stream_state->rs.length_field); if (stream_state->rs.length_field > 0) { stream_state->rs.read_buffer = - (char *)gpr_malloc((size_t)stream_state->rs.length_field); + (char*)gpr_malloc((size_t)stream_state->rs.length_field); GPR_ASSERT(stream_state->rs.read_buffer); stream_state->rs.remaining_bytes = stream_state->rs.length_field; stream_state->rs.received_bytes = 0; @@ -1207,9 +1207,8 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, if (stream_state->rs.compressed) { stream_state->rs.sbs.base.flags |= GRPC_WRITE_INTERNAL_COMPRESS; } - *((grpc_byte_buffer **) - stream_op->payload->recv_message.recv_message) = - (grpc_byte_buffer *)&stream_state->rs.sbs; + *((grpc_byte_buffer**)stream_op->payload->recv_message.recv_message) = + (grpc_byte_buffer*)&stream_state->rs.sbs; GRPC_CLOSURE_SCHED( exec_ctx, stream_op->payload->recv_message.recv_message_ready, GRPC_ERROR_NONE); @@ -1250,7 +1249,7 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, CRONET_LOG(GPR_DEBUG, "read operation complete"); grpc_slice read_data_slice = GRPC_SLICE_MALLOC((uint32_t)stream_state->rs.length_field); - uint8_t *dst_p = GRPC_SLICE_START_PTR(read_data_slice); + uint8_t* dst_p = GRPC_SLICE_START_PTR(read_data_slice); memcpy(dst_p, stream_state->rs.read_buffer, (size_t)stream_state->rs.length_field); null_and_maybe_free_read_buffer(s); @@ -1265,8 +1264,8 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, if (stream_state->rs.compressed) { stream_state->rs.sbs.base.flags = GRPC_WRITE_INTERNAL_COMPRESS; } - *((grpc_byte_buffer **)stream_op->payload->recv_message.recv_message) = - (grpc_byte_buffer *)&stream_state->rs.sbs; + *((grpc_byte_buffer**)stream_op->payload->recv_message.recv_message) = + (grpc_byte_buffer*)&stream_state->rs.sbs; GRPC_CLOSURE_SCHED(exec_ctx, stream_op->payload->recv_message.recv_message_ready, GRPC_ERROR_NONE); @@ -1351,18 +1350,18 @@ static enum e_op_result execute_stream_op(grpc_exec_ctx *exec_ctx, Functions used by upper layers to access transport functionality. */ -static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_stream_refcount *refcount, - const void *server_data, gpr_arena *arena) { - stream_obj *s = (stream_obj *)gs; +static int init_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_stream_refcount* refcount, + const void* server_data, gpr_arena* arena) { + stream_obj* s = (stream_obj*)gs; s->refcount = refcount; GRPC_CRONET_STREAM_REF(s, "cronet transport"); memset(&s->storage, 0, sizeof(s->storage)); - s->storage.head = NULL; + s->storage.head = nullptr; memset(&s->state, 0, sizeof(s->state)); - s->curr_op = NULL; - s->cbs = NULL; + s->curr_op = nullptr; + s->cbs = nullptr; memset(&s->header_array, 0, sizeof(s->header_array)); memset(&s->state.rs, 0, sizeof(s->state.rs)); memset(&s->state.ws, 0, sizeof(s->state.ws)); @@ -1370,30 +1369,30 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, memset(s->state.state_callback_received, 0, sizeof(s->state.state_callback_received)); s->state.fail_state = s->state.flush_read = false; - s->state.cancel_error = NULL; + s->state.cancel_error = nullptr; s->state.flush_cronet_when_ready = s->state.pending_write_for_trailer = false; s->state.pending_send_message = false; s->state.pending_recv_trailing_metadata = false; s->state.pending_read_from_cronet = false; s->curr_gs = gs; - s->curr_ct = (grpc_cronet_transport *)gt; + s->curr_ct = (grpc_cronet_transport*)gt; s->arena = arena; gpr_mu_init(&s->mu); return 0; } -static void set_pollset_do_nothing(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_pollset *pollset) {} +static void set_pollset_do_nothing(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_pollset* pollset) {} -static void set_pollset_set_do_nothing(grpc_exec_ctx *exec_ctx, - grpc_transport *gt, grpc_stream *gs, - grpc_pollset_set *pollset_set) {} +static void set_pollset_set_do_nothing(grpc_exec_ctx* exec_ctx, + grpc_transport* gt, grpc_stream* gs, + grpc_pollset_set* pollset_set) {} -static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_transport_stream_op_batch *op) { +static void perform_stream_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_transport_stream_op_batch* op) { CRONET_LOG(GPR_DEBUG, "perform_stream_op"); if (op->send_initial_metadata && header_has_authority(op->payload->send_initial_metadata @@ -1413,15 +1412,15 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, GRPC_CLOSURE_SCHED(exec_ctx, op->on_complete, GRPC_ERROR_CANCELLED); return; } - stream_obj *s = (stream_obj *)gs; + stream_obj* s = (stream_obj*)gs; add_to_storage(s, op); execute_from_storage(exec_ctx, s); } -static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_closure *then_schedule_closure) { - stream_obj *s = (stream_obj *)gs; +static void destroy_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_closure* then_schedule_closure) { + stream_obj* s = (stream_obj*)gs; null_and_maybe_free_read_buffer(s); /* Clean up read_slice_buffer in case there is unread data. */ grpc_slice_buffer_destroy_internal(exec_ctx, &s->state.rs.read_slice_buffer); @@ -1429,15 +1428,15 @@ static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, GRPC_CLOSURE_SCHED(exec_ctx, then_schedule_closure, GRPC_ERROR_NONE); } -static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) {} +static void destroy_transport(grpc_exec_ctx* exec_ctx, grpc_transport* gt) {} -static grpc_endpoint *get_endpoint(grpc_exec_ctx *exec_ctx, - grpc_transport *gt) { - return NULL; +static grpc_endpoint* get_endpoint(grpc_exec_ctx* exec_ctx, + grpc_transport* gt) { + return nullptr; } -static void perform_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_transport_op *op) {} +static void perform_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_transport_op* op) {} static const grpc_transport_vtable grpc_cronet_vtable = { sizeof(stream_obj), @@ -1451,17 +1450,17 @@ static const grpc_transport_vtable grpc_cronet_vtable = { destroy_transport, get_endpoint}; -grpc_transport *grpc_create_cronet_transport(void *engine, const char *target, - const grpc_channel_args *args, - void *reserved) { - grpc_cronet_transport *ct = - (grpc_cronet_transport *)gpr_malloc(sizeof(grpc_cronet_transport)); +grpc_transport* grpc_create_cronet_transport(void* engine, const char* target, + const grpc_channel_args* args, + void* reserved) { + grpc_cronet_transport* ct = + (grpc_cronet_transport*)gpr_malloc(sizeof(grpc_cronet_transport)); if (!ct) { goto error; } ct->base.vtable = &grpc_cronet_vtable; - ct->engine = (stream_engine *)engine; - ct->host = (char *)gpr_malloc(strlen(target) + 1); + ct->engine = (stream_engine*)engine; + ct->host = (char*)gpr_malloc(strlen(target) + 1); if (!ct->host) { goto error; } @@ -1492,5 +1491,5 @@ error: gpr_free(ct); } - return NULL; + return nullptr; } diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.h b/src/core/ext/transport/cronet/transport/cronet_transport.h index 43ff391f79..7643fdb585 100644 --- a/src/core/ext/transport/cronet/transport/cronet_transport.h +++ b/src/core/ext/transport/cronet/transport/cronet_transport.h @@ -25,9 +25,9 @@ extern "C" { #endif -grpc_transport *grpc_create_cronet_transport(void *engine, const char *target, - const grpc_channel_args *args, - void *reserved); +grpc_transport* grpc_create_cronet_transport(void* engine, const char* target, + const grpc_channel_args* args, + void* reserved); #ifdef __cplusplus } diff --git a/src/core/ext/transport/inproc/inproc_plugin.cc b/src/core/ext/transport/inproc/inproc_plugin.cc index 5d8a1c74ab..2526dbfa06 100644 --- a/src/core/ext/transport/inproc/inproc_plugin.cc +++ b/src/core/ext/transport/inproc/inproc_plugin.cc @@ -19,12 +19,9 @@ #include "src/core/ext/transport/inproc/inproc_transport.h" #include "src/core/lib/debug/trace.h" -grpc_tracer_flag grpc_inproc_trace = GRPC_TRACER_INITIALIZER(false, "inproc"); +grpc_core::TraceFlag grpc_inproc_trace(false, "inproc"); -extern "C" void grpc_inproc_plugin_init(void) { - grpc_register_tracer(&grpc_inproc_trace); - grpc_inproc_transport_init(); -} +extern "C" void grpc_inproc_plugin_init(void) { grpc_inproc_transport_init(); } extern "C" void grpc_inproc_plugin_shutdown(void) { grpc_inproc_transport_shutdown(); diff --git a/src/core/ext/transport/inproc/inproc_transport.cc b/src/core/ext/transport/inproc/inproc_transport.cc index 1551f5e988..2579060811 100644 --- a/src/core/ext/transport/inproc/inproc_transport.cc +++ b/src/core/ext/transport/inproc/inproc_transport.cc @@ -32,9 +32,9 @@ #include "src/core/lib/transport/error_utils.h" #include "src/core/lib/transport/transport_impl.h" -#define INPROC_LOG(...) \ - do { \ - if (GRPC_TRACER_ON(grpc_inproc_trace)) gpr_log(__VA_ARGS__); \ +#define INPROC_LOG(...) \ + do { \ + if (grpc_inproc_trace.enabled()) gpr_log(__VA_ARGS__); \ } while (0) static grpc_slice g_empty_slice; @@ -50,20 +50,20 @@ typedef struct { typedef struct inproc_transport { grpc_transport base; - shared_mu *mu; + shared_mu* mu; gpr_refcount refs; bool is_client; grpc_connectivity_state_tracker connectivity; - void (*accept_stream_cb)(grpc_exec_ctx *exec_ctx, void *user_data, - grpc_transport *transport, const void *server_data); - void *accept_stream_data; + void (*accept_stream_cb)(grpc_exec_ctx* exec_ctx, void* user_data, + grpc_transport* transport, const void* server_data); + void* accept_stream_data; bool is_closed; - struct inproc_transport *other_side; - struct inproc_stream *stream_list; + struct inproc_transport* other_side; + struct inproc_stream* stream_list; } inproc_transport; typedef struct inproc_stream { - inproc_transport *t; + inproc_transport* t; grpc_metadata_batch to_read_initial_md; uint32_t to_read_initial_md_flags; bool to_read_initial_md_filled; @@ -80,21 +80,21 @@ typedef struct inproc_stream { grpc_millis write_buffer_deadline; grpc_metadata_batch write_buffer_trailing_md; bool write_buffer_trailing_md_filled; - grpc_error *write_buffer_cancel_error; + grpc_error* write_buffer_cancel_error; - struct inproc_stream *other_side; + struct inproc_stream* other_side; bool other_side_closed; // won't talk anymore bool write_buffer_other_side_closed; // on hold - grpc_stream_refcount *refs; - grpc_closure *closure_at_destroy; + grpc_stream_refcount* refs; + grpc_closure* closure_at_destroy; - gpr_arena *arena; + gpr_arena* arena; - grpc_transport_stream_op_batch *send_message_op; - grpc_transport_stream_op_batch *send_trailing_md_op; - grpc_transport_stream_op_batch *recv_initial_md_op; - grpc_transport_stream_op_batch *recv_message_op; - grpc_transport_stream_op_batch *recv_trailing_md_op; + grpc_transport_stream_op_batch* send_message_op; + grpc_transport_stream_op_batch* send_trailing_md_op; + grpc_transport_stream_op_batch* recv_initial_md_op; + grpc_transport_stream_op_batch* recv_message_op; + grpc_transport_stream_op_batch* recv_trailing_md_op; grpc_slice_buffer recv_message; grpc_slice_buffer_stream recv_stream; @@ -107,29 +107,29 @@ typedef struct inproc_stream { bool closed; - grpc_error *cancel_self_error; - grpc_error *cancel_other_error; + grpc_error* cancel_self_error; + grpc_error* cancel_other_error; grpc_millis deadline; bool listed; - struct inproc_stream *stream_list_prev; - struct inproc_stream *stream_list_next; + struct inproc_stream* stream_list_prev; + struct inproc_stream* stream_list_next; } inproc_stream; static grpc_closure do_nothing_closure; -static bool cancel_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, - grpc_error *error); -static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error); +static bool cancel_stream_locked(grpc_exec_ctx* exec_ctx, inproc_stream* s, + grpc_error* error); +static void op_state_machine(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error); -static void ref_transport(inproc_transport *t) { +static void ref_transport(inproc_transport* t) { INPROC_LOG(GPR_DEBUG, "ref_transport %p", t); gpr_ref(&t->refs); } -static void really_destroy_transport(grpc_exec_ctx *exec_ctx, - inproc_transport *t) { +static void really_destroy_transport(grpc_exec_ctx* exec_ctx, + inproc_transport* t) { INPROC_LOG(GPR_DEBUG, "really_destroy_transport %p", t); grpc_connectivity_state_destroy(exec_ctx, &t->connectivity); if (gpr_unref(&t->mu->refs)) { @@ -138,7 +138,7 @@ static void really_destroy_transport(grpc_exec_ctx *exec_ctx, gpr_free(t); } -static void unref_transport(grpc_exec_ctx *exec_ctx, inproc_transport *t) { +static void unref_transport(grpc_exec_ctx* exec_ctx, inproc_transport* t) { INPROC_LOG(GPR_DEBUG, "unref_transport %p", t); if (gpr_unref(&t->refs)) { really_destroy_transport(exec_ctx, t); @@ -153,18 +153,18 @@ static void unref_transport(grpc_exec_ctx *exec_ctx, inproc_transport *t) { #define STREAM_UNREF(e, refs, reason) grpc_stream_unref(e, refs) #endif -static void ref_stream(inproc_stream *s, const char *reason) { +static void ref_stream(inproc_stream* s, const char* reason) { INPROC_LOG(GPR_DEBUG, "ref_stream %p %s", s, reason); STREAM_REF(s->refs, reason); } -static void unref_stream(grpc_exec_ctx *exec_ctx, inproc_stream *s, - const char *reason) { +static void unref_stream(grpc_exec_ctx* exec_ctx, inproc_stream* s, + const char* reason) { INPROC_LOG(GPR_DEBUG, "unref_stream %p %s", s, reason); STREAM_UNREF(exec_ctx, s->refs, reason); } -static void really_destroy_stream(grpc_exec_ctx *exec_ctx, inproc_stream *s) { +static void really_destroy_stream(grpc_exec_ctx* exec_ctx, inproc_stream* s) { INPROC_LOG(GPR_DEBUG, "really_destroy_stream %p", s); GRPC_ERROR_UNREF(s->write_buffer_cancel_error); @@ -182,12 +182,12 @@ static void really_destroy_stream(grpc_exec_ctx *exec_ctx, inproc_stream *s) { } } -static void log_metadata(const grpc_metadata_batch *md_batch, bool is_client, +static void log_metadata(const grpc_metadata_batch* md_batch, bool is_client, bool is_initial) { - for (grpc_linked_mdelem *md = md_batch->list.head; md != NULL; + for (grpc_linked_mdelem* md = md_batch->list.head; md != nullptr; md = md->next) { - char *key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); - char *value = grpc_slice_to_c_string(GRPC_MDVALUE(md->md)); + char* key = grpc_slice_to_c_string(GRPC_MDKEY(md->md)); + char* value = grpc_slice_to_c_string(GRPC_MDVALUE(md->md)); gpr_log(GPR_INFO, "INPROC:%s:%s: %s: %s", is_initial ? "HDR" : "TRL", is_client ? "CLI" : "SVR", key, value); gpr_free(key); @@ -195,25 +195,25 @@ static void log_metadata(const grpc_metadata_batch *md_batch, bool is_client, } } -static grpc_error *fill_in_metadata(grpc_exec_ctx *exec_ctx, inproc_stream *s, - const grpc_metadata_batch *metadata, - uint32_t flags, grpc_metadata_batch *out_md, - uint32_t *outflags, bool *markfilled) { - if (GRPC_TRACER_ON(grpc_inproc_trace)) { - log_metadata(metadata, s->t->is_client, outflags != NULL); +static grpc_error* fill_in_metadata(grpc_exec_ctx* exec_ctx, inproc_stream* s, + const grpc_metadata_batch* metadata, + uint32_t flags, grpc_metadata_batch* out_md, + uint32_t* outflags, bool* markfilled) { + if (grpc_inproc_trace.enabled()) { + log_metadata(metadata, s->t->is_client, outflags != nullptr); } - if (outflags != NULL) { + if (outflags != nullptr) { *outflags = flags; } - if (markfilled != NULL) { + if (markfilled != nullptr) { *markfilled = true; } - grpc_error *error = GRPC_ERROR_NONE; - for (grpc_linked_mdelem *elem = metadata->list.head; - (elem != NULL) && (error == GRPC_ERROR_NONE); elem = elem->next) { - grpc_linked_mdelem *nelem = - (grpc_linked_mdelem *)gpr_arena_alloc(s->arena, sizeof(*nelem)); + grpc_error* error = GRPC_ERROR_NONE; + for (grpc_linked_mdelem* elem = metadata->list.head; + (elem != nullptr) && (error == GRPC_ERROR_NONE); elem = elem->next) { + grpc_linked_mdelem* nelem = + (grpc_linked_mdelem*)gpr_arena_alloc(s->arena, sizeof(*nelem)); nelem->md = grpc_mdelem_from_slices( exec_ctx, grpc_slice_intern(GRPC_MDKEY(elem->md)), grpc_slice_intern(GRPC_MDVALUE(elem->md))); @@ -223,12 +223,12 @@ static grpc_error *fill_in_metadata(grpc_exec_ctx *exec_ctx, inproc_stream *s, return error; } -static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_stream_refcount *refcount, - const void *server_data, gpr_arena *arena) { +static int init_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_stream_refcount* refcount, + const void* server_data, gpr_arena* arena) { INPROC_LOG(GPR_DEBUG, "init_stream %p %p %p", gt, gs, server_data); - inproc_transport *t = (inproc_transport *)gt; - inproc_stream *s = (inproc_stream *)gs; + inproc_transport* t = (inproc_transport*)gt; + inproc_stream* s = (inproc_stream*)gs; s->arena = arena; s->refs = refcount; @@ -250,7 +250,7 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, GRPC_CLOSURE_INIT(&s->op_closure, op_state_machine, s, grpc_schedule_on_exec_ctx); s->t = t; - s->closure_at_destroy = NULL; + s->closure_at_destroy = nullptr; s->other_side_closed = false; s->initial_md_sent = s->trailing_md_sent = s->initial_md_recvd = @@ -264,7 +264,7 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, s->deadline = GRPC_MILLIS_INF_FUTURE; s->write_buffer_deadline = GRPC_MILLIS_INF_FUTURE; - s->stream_list_prev = NULL; + s->stream_list_prev = nullptr; gpr_mu_lock(&t->mu->mu); s->listed = true; ref_stream(s, "inproc_init_stream:list"); @@ -277,19 +277,19 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, if (!server_data) { ref_transport(t); - inproc_transport *st = t->other_side; + inproc_transport* st = t->other_side; ref_transport(st); - s->other_side = NULL; // will get filled in soon + s->other_side = nullptr; // will get filled in soon // Pass the client-side stream address to the server-side for a ref ref_stream(s, "inproc_init_stream:clt"); // ref it now on behalf of server // side to avoid destruction INPROC_LOG(GPR_DEBUG, "calling accept stream cb %p %p", st->accept_stream_cb, st->accept_stream_data); (*st->accept_stream_cb)(exec_ctx, st->accept_stream_data, &st->base, - (void *)s); + (void*)s); } else { // This is the server-side and is being called through accept_stream_cb - inproc_stream *cs = (inproc_stream *)server_data; + inproc_stream* cs = (inproc_stream*)server_data; s->other_side = cs; // Ref the server-side stream on behalf of the client now ref_stream(s, "inproc_init_stream:srv"); @@ -311,7 +311,7 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, } if (cs->write_buffer_trailing_md_filled) { fill_in_metadata(exec_ctx, s, &cs->write_buffer_trailing_md, 0, - &s->to_read_trailing_md, NULL, + &s->to_read_trailing_md, nullptr, &s->to_read_trailing_md_filled); grpc_metadata_batch_clear(exec_ctx, &cs->write_buffer_trailing_md); cs->write_buffer_trailing_md_filled = false; @@ -326,21 +326,21 @@ static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, return 0; // return value is not important } -static void close_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s) { +static void close_stream_locked(grpc_exec_ctx* exec_ctx, inproc_stream* s) { if (!s->closed) { // Release the metadata that we would have written out grpc_metadata_batch_destroy(exec_ctx, &s->write_buffer_initial_md); grpc_metadata_batch_destroy(exec_ctx, &s->write_buffer_trailing_md); if (s->listed) { - inproc_stream *p = s->stream_list_prev; - inproc_stream *n = s->stream_list_next; - if (p != NULL) { + inproc_stream* p = s->stream_list_prev; + inproc_stream* n = s->stream_list_next; + if (p != nullptr) { p->stream_list_next = n; } else { s->t->stream_list = n; } - if (n != NULL) { + if (n != nullptr) { n->stream_list_prev = p; } s->listed = false; @@ -352,16 +352,16 @@ static void close_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s) { } // This function means that we are done talking/listening to the other side -static void close_other_side_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, - const char *reason) { - if (s->other_side != NULL) { +static void close_other_side_locked(grpc_exec_ctx* exec_ctx, inproc_stream* s, + const char* reason) { + if (s->other_side != nullptr) { // First release the metadata that came from the other side's arena grpc_metadata_batch_destroy(exec_ctx, &s->to_read_initial_md); grpc_metadata_batch_destroy(exec_ctx, &s->to_read_trailing_md); unref_stream(exec_ctx, s->other_side, reason); s->other_side_closed = true; - s->other_side = NULL; + s->other_side = nullptr; } else if (!s->other_side_closed) { s->write_buffer_other_side_closed = true; } @@ -371,10 +371,10 @@ static void close_other_side_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, // this stream_op_batch is only one of the pending operations for this // stream. This is called when one of the pending operations for the stream // is done and about to be NULLed out -static void complete_if_batch_end_locked(grpc_exec_ctx *exec_ctx, - inproc_stream *s, grpc_error *error, - grpc_transport_stream_op_batch *op, - const char *msg) { +static void complete_if_batch_end_locked(grpc_exec_ctx* exec_ctx, + inproc_stream* s, grpc_error* error, + grpc_transport_stream_op_batch* op, + const char* msg) { int is_sm = (int)(op == s->send_message_op); int is_stm = (int)(op == s->send_trailing_md_op); int is_rim = (int)(op == s->recv_initial_md_op); @@ -387,9 +387,9 @@ static void complete_if_batch_end_locked(grpc_exec_ctx *exec_ctx, } } -static void maybe_schedule_op_closure_locked(grpc_exec_ctx *exec_ctx, - inproc_stream *s, - grpc_error *error) { +static void maybe_schedule_op_closure_locked(grpc_exec_ctx* exec_ctx, + inproc_stream* s, + grpc_error* error) { if (s && s->ops_needed && !s->op_closure_scheduled) { GRPC_CLOSURE_SCHED(exec_ctx, &s->op_closure, GRPC_ERROR_REF(error)); s->op_closure_scheduled = true; @@ -397,8 +397,8 @@ static void maybe_schedule_op_closure_locked(grpc_exec_ctx *exec_ctx, } } -static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, - grpc_error *error) { +static void fail_helper_locked(grpc_exec_ctx* exec_ctx, inproc_stream* s, + grpc_error* error) { INPROC_LOG(GPR_DEBUG, "op_state_machine %p fail_helper", s); // If we're failing this side, we need to make sure that // we also send or have already sent trailing metadata @@ -409,15 +409,16 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, grpc_metadata_batch fake_md; grpc_metadata_batch_init(&fake_md); - inproc_stream *other = s->other_side; - grpc_metadata_batch *dest = (other == NULL) ? &s->write_buffer_trailing_md - : &other->to_read_trailing_md; - bool *destfilled = (other == NULL) ? &s->write_buffer_trailing_md_filled - : &other->to_read_trailing_md_filled; - fill_in_metadata(exec_ctx, s, &fake_md, 0, dest, NULL, destfilled); + inproc_stream* other = s->other_side; + grpc_metadata_batch* dest = (other == nullptr) + ? &s->write_buffer_trailing_md + : &other->to_read_trailing_md; + bool* destfilled = (other == nullptr) ? &s->write_buffer_trailing_md_filled + : &other->to_read_trailing_md_filled; + fill_in_metadata(exec_ctx, s, &fake_md, 0, dest, nullptr, destfilled); grpc_metadata_batch_destroy(exec_ctx, &fake_md); - if (other != NULL) { + if (other != nullptr) { if (other->cancel_other_error == GRPC_ERROR_NONE) { other->cancel_other_error = GRPC_ERROR_REF(error); } @@ -427,20 +428,20 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, } } if (s->recv_initial_md_op) { - grpc_error *err; + grpc_error* err; if (!s->t->is_client) { // If this is a server, provide initial metadata with a path and authority // since it expects that as well as no error yet grpc_metadata_batch fake_md; grpc_metadata_batch_init(&fake_md); - grpc_linked_mdelem *path_md = - (grpc_linked_mdelem *)gpr_arena_alloc(s->arena, sizeof(*path_md)); + grpc_linked_mdelem* path_md = + (grpc_linked_mdelem*)gpr_arena_alloc(s->arena, sizeof(*path_md)); path_md->md = grpc_mdelem_from_slices(exec_ctx, g_fake_path_key, g_fake_path_value); GPR_ASSERT(grpc_metadata_batch_link_tail(exec_ctx, &fake_md, path_md) == GRPC_ERROR_NONE); - grpc_linked_mdelem *auth_md = - (grpc_linked_mdelem *)gpr_arena_alloc(s->arena, sizeof(*auth_md)); + grpc_linked_mdelem* auth_md = + (grpc_linked_mdelem*)gpr_arena_alloc(s->arena, sizeof(*auth_md)); auth_md->md = grpc_mdelem_from_slices(exec_ctx, g_fake_auth_key, g_fake_auth_value); GPR_ASSERT(grpc_metadata_batch_link_tail(exec_ctx, &fake_md, auth_md) == @@ -451,7 +452,7 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, s->recv_initial_md_op->payload->recv_initial_metadata .recv_initial_metadata, s->recv_initial_md_op->payload->recv_initial_metadata.recv_flags, - NULL); + nullptr); grpc_metadata_batch_destroy(exec_ctx, &fake_md); err = GRPC_ERROR_NONE; } else { @@ -469,7 +470,7 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, complete_if_batch_end_locked( exec_ctx, s, error, s->recv_initial_md_op, "fail_helper scheduling recv-initial-metadata-on-complete"); - s->recv_initial_md_op = NULL; + s->recv_initial_md_op = nullptr; } if (s->recv_message_op) { INPROC_LOG(GPR_DEBUG, "fail_helper %p scheduling message-ready %p", s, @@ -480,19 +481,19 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, complete_if_batch_end_locked( exec_ctx, s, error, s->recv_message_op, "fail_helper scheduling recv-message-on-complete"); - s->recv_message_op = NULL; + s->recv_message_op = nullptr; } if (s->send_message_op) { complete_if_batch_end_locked( exec_ctx, s, error, s->send_message_op, "fail_helper scheduling send-message-on-complete"); - s->send_message_op = NULL; + s->send_message_op = nullptr; } if (s->send_trailing_md_op) { complete_if_batch_end_locked( exec_ctx, s, error, s->send_trailing_md_op, "fail_helper scheduling send-trailng-md-on-complete"); - s->send_trailing_md_op = NULL; + s->send_trailing_md_op = nullptr; } if (s->recv_trailing_md_op) { INPROC_LOG(GPR_DEBUG, @@ -501,7 +502,7 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, complete_if_batch_end_locked( exec_ctx, s, error, s->recv_trailing_md_op, "fail_helper scheduling recv-trailing-metadata-on-complete"); - s->recv_trailing_md_op = NULL; + s->recv_trailing_md_op = nullptr; } close_other_side_locked(exec_ctx, s, "fail_helper:other_side"); close_stream_locked(exec_ctx, s); @@ -509,9 +510,9 @@ static void fail_helper_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, GRPC_ERROR_UNREF(error); } -static void message_transfer_locked(grpc_exec_ctx *exec_ctx, - inproc_stream *sender, - inproc_stream *receiver) { +static void message_transfer_locked(grpc_exec_ctx* exec_ctx, + inproc_stream* sender, + inproc_stream* receiver) { size_t remaining = sender->send_message_op->payload->send_message.send_message->length; if (receiver->recv_inited) { @@ -525,7 +526,7 @@ static void message_transfer_locked(grpc_exec_ctx *exec_ctx, GPR_ASSERT(grpc_byte_stream_next( exec_ctx, sender->send_message_op->payload->send_message.send_message, SIZE_MAX, &unused)); - grpc_error *error = grpc_byte_stream_pull( + grpc_error* error = grpc_byte_stream_pull( exec_ctx, sender->send_message_op->payload->send_message.send_message, &message_slice); if (error != GRPC_ERROR_NONE) { @@ -554,12 +555,12 @@ static void message_transfer_locked(grpc_exec_ctx *exec_ctx, exec_ctx, receiver, GRPC_ERROR_NONE, receiver->recv_message_op, "message_transfer scheduling receiver on_complete"); - receiver->recv_message_op = NULL; - sender->send_message_op = NULL; + receiver->recv_message_op = nullptr; + sender->send_message_op = nullptr; } -static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, - grpc_error *error) { +static void op_state_machine(grpc_exec_ctx* exec_ctx, void* arg, + grpc_error* error) { // This function gets called when we have contents in the unprocessed reads // Get what we want based on our ops wanted // Schedule our appropriate closures @@ -567,17 +568,17 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, // Since this is a closure directly invoked by the combiner, it should not // unref the error parameter explicitly; the combiner will do that implicitly - grpc_error *new_err = GRPC_ERROR_NONE; + grpc_error* new_err = GRPC_ERROR_NONE; bool needs_close = false; INPROC_LOG(GPR_DEBUG, "op_state_machine %p", arg); - inproc_stream *s = (inproc_stream *)arg; - gpr_mu *mu = &s->t->mu->mu; // keep aside in case s gets closed + inproc_stream* s = (inproc_stream*)arg; + gpr_mu* mu = &s->t->mu->mu; // keep aside in case s gets closed gpr_mu_lock(mu); s->op_closure_scheduled = false; // cancellation takes precedence - inproc_stream *other = s->other_side; + inproc_stream* other = s->other_side; if (s->cancel_self_error != GRPC_ERROR_NONE) { fail_helper_locked(exec_ctx, s, GRPC_ERROR_REF(s->cancel_self_error)); @@ -601,7 +602,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, GRPC_ERROR_NONE, s->send_message_op, "op_state_machine scheduling send-message-on-complete"); - s->send_message_op = NULL; + s->send_message_op = nullptr; } } // Pause a send trailing metadata if there is still an outstanding @@ -612,10 +613,11 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, (!s->send_message_op || (s->t->is_client && (s->trailing_md_recvd || s->to_read_trailing_md_filled)))) { - grpc_metadata_batch *dest = (other == NULL) ? &s->write_buffer_trailing_md - : &other->to_read_trailing_md; - bool *destfilled = (other == NULL) ? &s->write_buffer_trailing_md_filled - : &other->to_read_trailing_md_filled; + grpc_metadata_batch* dest = (other == nullptr) + ? &s->write_buffer_trailing_md + : &other->to_read_trailing_md; + bool* destfilled = (other == nullptr) ? &s->write_buffer_trailing_md_filled + : &other->to_read_trailing_md_filled; if (*destfilled || s->trailing_md_sent) { // The buffer is already in use; that's an error! INPROC_LOG(GPR_DEBUG, "Extra trailing metadata %p", s); @@ -627,7 +629,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, fill_in_metadata(exec_ctx, s, s->send_trailing_md_op->payload->send_trailing_metadata .send_trailing_metadata, - 0, dest, NULL, destfilled); + 0, dest, nullptr, destfilled); } s->trailing_md_sent = true; if (!s->t->is_client && s->trailing_md_recvd && s->recv_trailing_md_op) { @@ -635,7 +637,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, "op_state_machine %p scheduling trailing-md-on-complete", s); GRPC_CLOSURE_SCHED(exec_ctx, s->recv_trailing_md_op->on_complete, GRPC_ERROR_NONE); - s->recv_trailing_md_op = NULL; + s->recv_trailing_md_op = nullptr; needs_close = true; } } @@ -643,7 +645,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, GRPC_ERROR_NONE, s->send_trailing_md_op, "op_state_machine scheduling send-trailing-metadata-on-complete"); - s->send_trailing_md_op = NULL; + s->send_trailing_md_op = nullptr; } if (s->recv_initial_md_op) { if (s->initial_md_recvd) { @@ -665,7 +667,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, s->recv_initial_md_op->payload->recv_initial_metadata .recv_initial_metadata, s->recv_initial_md_op->payload->recv_initial_metadata.recv_flags, - NULL); + nullptr); s->recv_initial_md_op->payload->recv_initial_metadata .recv_initial_metadata->deadline = s->deadline; grpc_metadata_batch_clear(exec_ctx, &s->to_read_initial_md); @@ -680,7 +682,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, new_err, s->recv_initial_md_op, "op_state_machine scheduling recv-initial-metadata-on-complete"); - s->recv_initial_md_op = NULL; + s->recv_initial_md_op = nullptr; if (new_err != GRPC_ERROR_NONE) { INPROC_LOG(GPR_DEBUG, @@ -713,7 +715,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, fail_helper_locked(exec_ctx, s, GRPC_ERROR_REF(new_err)); goto done; } - if (s->recv_message_op != NULL) { + if (s->recv_message_op != nullptr) { // This message needs to be wrapped up because it will never be // satisfied INPROC_LOG(GPR_DEBUG, "op_state_machine %p scheduling message-ready", s); @@ -724,7 +726,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, new_err, s->recv_message_op, "op_state_machine scheduling recv-message-on-complete"); - s->recv_message_op = NULL; + s->recv_message_op = nullptr; } if ((s->trailing_md_sent || s->t->is_client) && s->send_message_op) { // Nothing further will try to receive from this stream, so finish off @@ -732,16 +734,16 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, new_err, s->send_message_op, "op_state_machine scheduling send-message-on-complete"); - s->send_message_op = NULL; + s->send_message_op = nullptr; } - if (s->recv_trailing_md_op != NULL) { + if (s->recv_trailing_md_op != nullptr) { // We wanted trailing metadata and we got it s->trailing_md_recvd = true; new_err = fill_in_metadata(exec_ctx, s, &s->to_read_trailing_md, 0, s->recv_trailing_md_op->payload ->recv_trailing_metadata.recv_trailing_metadata, - NULL, NULL); + nullptr, nullptr); grpc_metadata_batch_clear(exec_ctx, &s->to_read_trailing_md); s->to_read_trailing_md_filled = false; @@ -756,7 +758,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, s, new_err); GRPC_CLOSURE_SCHED(exec_ctx, s->recv_trailing_md_op->on_complete, GRPC_ERROR_REF(new_err)); - s->recv_trailing_md_op = NULL; + s->recv_trailing_md_op = nullptr; needs_close = true; } else { INPROC_LOG(GPR_DEBUG, @@ -780,7 +782,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, new_err, s->recv_message_op, "op_state_machine scheduling recv-message-on-complete"); - s->recv_message_op = NULL; + s->recv_message_op = nullptr; } if (s->trailing_md_recvd && (s->trailing_md_sent || s->t->is_client) && s->send_message_op) { @@ -789,7 +791,7 @@ static void op_state_machine(grpc_exec_ctx *exec_ctx, void *arg, complete_if_batch_end_locked( exec_ctx, s, new_err, s->send_message_op, "op_state_machine scheduling send-message-on-complete"); - s->send_message_op = NULL; + s->send_message_op = nullptr; } if (s->send_message_op || s->send_trailing_md_op || s->recv_initial_md_op || s->recv_message_op || s->recv_trailing_md_op) { @@ -810,8 +812,8 @@ done: GRPC_ERROR_UNREF(new_err); } -static bool cancel_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, - grpc_error *error) { +static bool cancel_stream_locked(grpc_exec_ctx* exec_ctx, inproc_stream* s, + grpc_error* error) { bool ret = false; // was the cancel accepted INPROC_LOG(GPR_DEBUG, "cancel_stream %p with %s", s, grpc_error_string(error)); @@ -826,15 +828,16 @@ static bool cancel_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, grpc_metadata_batch cancel_md; grpc_metadata_batch_init(&cancel_md); - inproc_stream *other = s->other_side; - grpc_metadata_batch *dest = (other == NULL) ? &s->write_buffer_trailing_md - : &other->to_read_trailing_md; - bool *destfilled = (other == NULL) ? &s->write_buffer_trailing_md_filled - : &other->to_read_trailing_md_filled; - fill_in_metadata(exec_ctx, s, &cancel_md, 0, dest, NULL, destfilled); + inproc_stream* other = s->other_side; + grpc_metadata_batch* dest = (other == nullptr) + ? &s->write_buffer_trailing_md + : &other->to_read_trailing_md; + bool* destfilled = (other == nullptr) ? &s->write_buffer_trailing_md_filled + : &other->to_read_trailing_md_filled; + fill_in_metadata(exec_ctx, s, &cancel_md, 0, dest, nullptr, destfilled); grpc_metadata_batch_destroy(exec_ctx, &cancel_md); - if (other != NULL) { + if (other != nullptr) { if (other->cancel_other_error == GRPC_ERROR_NONE) { other->cancel_other_error = GRPC_ERROR_REF(s->cancel_self_error); } @@ -851,7 +854,7 @@ static bool cancel_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, complete_if_batch_end_locked( exec_ctx, s, s->cancel_self_error, s->recv_trailing_md_op, "cancel_stream scheduling trailing-md-on-complete"); - s->recv_trailing_md_op = NULL; + s->recv_trailing_md_op = nullptr; } } @@ -862,15 +865,15 @@ static bool cancel_stream_locked(grpc_exec_ctx *exec_ctx, inproc_stream *s, return ret; } -static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_transport_stream_op_batch *op) { +static void perform_stream_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_transport_stream_op_batch* op) { INPROC_LOG(GPR_DEBUG, "perform_stream_op %p %p %p", gt, gs, op); - inproc_stream *s = (inproc_stream *)gs; - gpr_mu *mu = &s->t->mu->mu; // save aside in case s gets closed + inproc_stream* s = (inproc_stream*)gs; + gpr_mu* mu = &s->t->mu->mu; // save aside in case s gets closed gpr_mu_lock(mu); - if (GRPC_TRACER_ON(grpc_inproc_trace)) { + if (grpc_inproc_trace.enabled()) { if (op->send_initial_metadata) { log_metadata(op->payload->send_initial_metadata.send_initial_metadata, s->t->is_client, true); @@ -880,9 +883,9 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, s->t->is_client, false); } } - grpc_error *error = GRPC_ERROR_NONE; - grpc_closure *on_complete = op->on_complete; - if (on_complete == NULL) { + grpc_error* error = GRPC_ERROR_NONE; + grpc_closure* on_complete = op->on_complete; + if (on_complete == nullptr) { on_complete = &do_nothing_closure; } @@ -907,19 +910,21 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, bool needs_close = false; - inproc_stream *other = s->other_side; + inproc_stream* other = s->other_side; if (error == GRPC_ERROR_NONE && (op->send_initial_metadata || op->send_trailing_metadata)) { if (s->t->is_closed) { error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Endpoint already shutdown"); } if (error == GRPC_ERROR_NONE && op->send_initial_metadata) { - grpc_metadata_batch *dest = (other == NULL) ? &s->write_buffer_initial_md - : &other->to_read_initial_md; - uint32_t *destflags = (other == NULL) ? &s->write_buffer_initial_md_flags - : &other->to_read_initial_md_flags; - bool *destfilled = (other == NULL) ? &s->write_buffer_initial_md_filled - : &other->to_read_initial_md_filled; + grpc_metadata_batch* dest = (other == nullptr) + ? &s->write_buffer_initial_md + : &other->to_read_initial_md; + uint32_t* destflags = (other == nullptr) + ? &s->write_buffer_initial_md_flags + : &other->to_read_initial_md_flags; + bool* destfilled = (other == nullptr) ? &s->write_buffer_initial_md_filled + : &other->to_read_initial_md_filled; if (*destfilled || s->initial_md_sent) { // The buffer is already in use; that's an error! INPROC_LOG(GPR_DEBUG, "Extra initial metadata %p", s); @@ -933,8 +938,8 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, dest, destflags, destfilled); } if (s->t->is_client) { - grpc_millis *dl = - (other == NULL) ? &s->write_buffer_deadline : &other->deadline; + grpc_millis* dl = + (other == nullptr) ? &s->write_buffer_deadline : &other->deadline; *dl = GPR_MIN(*dl, op->payload->send_initial_metadata .send_initial_metadata->deadline); s->initial_md_sent = true; @@ -972,11 +977,12 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, // 4. We want to receive a message and there is a message ready // 5. There is trailing metadata, even if nothing specifically wants // that because that can shut down the receive message as well - if ((op->send_message && other && ((other->recv_message_op != NULL) || - (other->recv_trailing_md_op != NULL))) || + if ((op->send_message && other && + ((other->recv_message_op != nullptr) || + (other->recv_trailing_md_op != nullptr))) || (op->send_trailing_metadata && !op->send_message) || (op->recv_initial_metadata && s->to_read_initial_md_filled) || - (op->recv_message && other && (other->send_message_op != NULL)) || + (op->recv_message && other && (other->send_message_op != nullptr)) || (s->to_read_trailing_md_filled || s->trailing_md_recvd)) { if (!s->op_closure_scheduled) { GRPC_CLOSURE_SCHED(exec_ctx, &s->op_closure, GRPC_ERROR_NONE); @@ -1020,8 +1026,8 @@ static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, GRPC_ERROR_UNREF(error); } -static void close_transport_locked(grpc_exec_ctx *exec_ctx, - inproc_transport *t) { +static void close_transport_locked(grpc_exec_ctx* exec_ctx, + inproc_transport* t) { INPROC_LOG(GPR_DEBUG, "close_transport %p %d", t, t->is_closed); grpc_connectivity_state_set( exec_ctx, &t->connectivity, GRPC_CHANNEL_SHUTDOWN, @@ -1030,7 +1036,7 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx, if (!t->is_closed) { t->is_closed = true; /* Also end all streams on this transport */ - while (t->stream_list != NULL) { + while (t->stream_list != nullptr) { // cancel_stream_locked also adjusts stream list cancel_stream_locked( exec_ctx, t->stream_list, @@ -1041,9 +1047,9 @@ static void close_transport_locked(grpc_exec_ctx *exec_ctx, } } -static void perform_transport_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_transport_op *op) { - inproc_transport *t = (inproc_transport *)gt; +static void perform_transport_op(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_transport_op* op) { + inproc_transport* t = (inproc_transport*)gt; INPROC_LOG(GPR_DEBUG, "perform_transport_op %p %p", t, op); gpr_mu_lock(&t->mu->mu); if (op->on_connectivity_state_change) { @@ -1075,17 +1081,17 @@ static void perform_transport_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt, gpr_mu_unlock(&t->mu->mu); } -static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, - grpc_closure *then_schedule_closure) { +static void destroy_stream(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, + grpc_closure* then_schedule_closure) { INPROC_LOG(GPR_DEBUG, "destroy_stream %p %p", gs, then_schedule_closure); - inproc_stream *s = (inproc_stream *)gs; + inproc_stream* s = (inproc_stream*)gs; s->closure_at_destroy = then_schedule_closure; really_destroy_stream(exec_ctx, s); } -static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) { - inproc_transport *t = (inproc_transport *)gt; +static void destroy_transport(grpc_exec_ctx* exec_ctx, grpc_transport* gt) { + inproc_transport* t = (inproc_transport*)gt; INPROC_LOG(GPR_DEBUG, "destroy_transport %p", t); gpr_mu_lock(&t->mu->mu); close_transport_locked(exec_ctx, t); @@ -1098,30 +1104,30 @@ static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) { * INTEGRATION GLUE */ -static void set_pollset(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_pollset *pollset) { +static void set_pollset(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_pollset* pollset) { // Nothing to do here } -static void set_pollset_set(grpc_exec_ctx *exec_ctx, grpc_transport *gt, - grpc_stream *gs, grpc_pollset_set *pollset_set) { +static void set_pollset_set(grpc_exec_ctx* exec_ctx, grpc_transport* gt, + grpc_stream* gs, grpc_pollset_set* pollset_set) { // Nothing to do here } -static grpc_endpoint *get_endpoint(grpc_exec_ctx *exec_ctx, grpc_transport *t) { - return NULL; +static grpc_endpoint* get_endpoint(grpc_exec_ctx* exec_ctx, grpc_transport* t) { + return nullptr; } /******************************************************************************* * GLOBAL INIT AND DESTROY */ -static void do_nothing(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {} +static void do_nothing(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {} void grpc_inproc_transport_init(void) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - GRPC_CLOSURE_INIT(&do_nothing_closure, do_nothing, NULL, + GRPC_CLOSURE_INIT(&do_nothing_closure, do_nothing, nullptr, grpc_schedule_on_exec_ctx); - g_empty_slice = grpc_slice_from_static_buffer(NULL, 0); + g_empty_slice = grpc_slice_from_static_buffer(nullptr, 0); grpc_slice key_tmp = grpc_slice_from_static_string(":path"); g_fake_path_key = grpc_slice_intern(key_tmp); @@ -1146,16 +1152,16 @@ static const grpc_transport_vtable inproc_vtable = { /******************************************************************************* * Main inproc transport functions */ -static void inproc_transports_create(grpc_exec_ctx *exec_ctx, - grpc_transport **server_transport, - const grpc_channel_args *server_args, - grpc_transport **client_transport, - const grpc_channel_args *client_args) { +static void inproc_transports_create(grpc_exec_ctx* exec_ctx, + grpc_transport** server_transport, + const grpc_channel_args* server_args, + grpc_transport** client_transport, + const grpc_channel_args* client_args) { INPROC_LOG(GPR_DEBUG, "inproc_transports_create"); - inproc_transport *st = (inproc_transport *)gpr_zalloc(sizeof(*st)); - inproc_transport *ct = (inproc_transport *)gpr_zalloc(sizeof(*ct)); + inproc_transport* st = (inproc_transport*)gpr_zalloc(sizeof(*st)); + inproc_transport* ct = (inproc_transport*)gpr_zalloc(sizeof(*ct)); // Share one lock between both sides since both sides get affected - st->mu = ct->mu = (shared_mu *)gpr_malloc(sizeof(*st->mu)); + st->mu = ct->mu = (shared_mu*)gpr_malloc(sizeof(*st->mu)); gpr_mu_init(&st->mu->mu); gpr_ref_init(&st->mu->refs, 2); st->base.vtable = &inproc_vtable; @@ -1172,39 +1178,39 @@ static void inproc_transports_create(grpc_exec_ctx *exec_ctx, "inproc_client"); st->other_side = ct; ct->other_side = st; - st->stream_list = NULL; - ct->stream_list = NULL; - *server_transport = (grpc_transport *)st; - *client_transport = (grpc_transport *)ct; + st->stream_list = nullptr; + ct->stream_list = nullptr; + *server_transport = (grpc_transport*)st; + *client_transport = (grpc_transport*)ct; } -grpc_channel *grpc_inproc_channel_create(grpc_server *server, - grpc_channel_args *args, - void *reserved) { +grpc_channel* grpc_inproc_channel_create(grpc_server* server, + grpc_channel_args* args, + void* reserved) { GRPC_API_TRACE("grpc_inproc_channel_create(server=%p, args=%p)", 2, (server, args)); grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - const grpc_channel_args *server_args = grpc_server_get_channel_args(server); + const grpc_channel_args* server_args = grpc_server_get_channel_args(server); // Add a default authority channel argument for the client grpc_arg default_authority_arg; default_authority_arg.type = GRPC_ARG_STRING; - default_authority_arg.key = (char *)GRPC_ARG_DEFAULT_AUTHORITY; - default_authority_arg.value.string = (char *)"inproc.authority"; - grpc_channel_args *client_args = + default_authority_arg.key = (char*)GRPC_ARG_DEFAULT_AUTHORITY; + default_authority_arg.value.string = (char*)"inproc.authority"; + grpc_channel_args* client_args = grpc_channel_args_copy_and_add(args, &default_authority_arg, 1); - grpc_transport *server_transport; - grpc_transport *client_transport; + grpc_transport* server_transport; + grpc_transport* client_transport; inproc_transports_create(&exec_ctx, &server_transport, server_args, &client_transport, client_args); - grpc_server_setup_transport(&exec_ctx, server, server_transport, NULL, + grpc_server_setup_transport(&exec_ctx, server, server_transport, nullptr, server_args); - grpc_channel *channel = + grpc_channel* channel = grpc_channel_create(&exec_ctx, "inproc", client_args, GRPC_CLIENT_DIRECT_CHANNEL, client_transport); diff --git a/src/core/ext/transport/inproc/inproc_transport.h b/src/core/ext/transport/inproc/inproc_transport.h index 37e6d99e99..f27789a50d 100644 --- a/src/core/ext/transport/inproc/inproc_transport.h +++ b/src/core/ext/transport/inproc/inproc_transport.h @@ -25,11 +25,11 @@ extern "C" { #endif -grpc_channel *grpc_inproc_channel_create(grpc_server *server, - grpc_channel_args *args, - void *reserved); +grpc_channel* grpc_inproc_channel_create(grpc_server* server, + grpc_channel_args* args, + void* reserved); -extern grpc_tracer_flag grpc_inproc_trace; +extern grpc_core::TraceFlag grpc_inproc_trace; void grpc_inproc_transport_init(void); void grpc_inproc_transport_shutdown(void); |