From c459ecf7c9beac5e861ade0dd4686348c1bbfdc6 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Thu, 16 Jun 2016 09:17:49 -0700 Subject: - fix build problems - make changes suggested by reviewer - add test (not working yet) --- src/core/lib/channel/channel_stack.h | 8 ++++++++ src/core/lib/channel/channel_stack_builder.h | 8 ++++++++ src/core/lib/surface/channel_init.h | 8 ++++++++ 3 files changed, 24 insertions(+) (limited to 'src/core') diff --git a/src/core/lib/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h index 41dd4a0d8a..535acde393 100644 --- a/src/core/lib/channel/channel_stack.h +++ b/src/core/lib/channel/channel_stack.h @@ -51,6 +51,10 @@ #include "src/core/lib/iomgr/polling_entity.h" #include "src/core/lib/transport/transport.h" +#ifdef __cplusplus +extern "C" { +#endif + typedef struct grpc_channel_element grpc_channel_element; typedef struct grpc_call_element grpc_call_element; @@ -278,4 +282,8 @@ extern int grpc_trace_channel; #define GRPC_CALL_LOG_OP(sev, elem, op) \ if (grpc_trace_channel) grpc_call_log_op(sev, elem, op) +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H */ diff --git a/src/core/lib/channel/channel_stack_builder.h b/src/core/lib/channel/channel_stack_builder.h index 0e6bfd9aa6..4a00f7bfdb 100644 --- a/src/core/lib/channel/channel_stack_builder.h +++ b/src/core/lib/channel/channel_stack_builder.h @@ -39,6 +39,10 @@ #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/channel/channel_stack.h" +#ifdef __cplusplus +extern "C" { +#endif + /// grpc_channel_stack_builder offers a programmatic interface to selected /// and order channel filters typedef struct grpc_channel_stack_builder grpc_channel_stack_builder; @@ -158,4 +162,8 @@ void grpc_channel_stack_builder_destroy(grpc_channel_stack_builder *builder); extern int grpc_trace_channel_stack_builder; +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_BUILDER_H */ diff --git a/src/core/lib/surface/channel_init.h b/src/core/lib/surface/channel_init.h index 3a18a61ddb..b53f2aefb9 100644 --- a/src/core/lib/surface/channel_init.h +++ b/src/core/lib/surface/channel_init.h @@ -40,6 +40,10 @@ #define GRPC_CHANNEL_INIT_BUILTIN_PRIORITY 10000 +#ifdef __cplusplus +extern "C" { +#endif + /// This module provides a way for plugins (and the grpc core library itself) /// to register mutators for channel stacks. /// It also provides a universal entry path to run those mutators to build @@ -84,4 +88,8 @@ bool grpc_channel_init_create_stack(grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder *builder, grpc_channel_stack_type type); +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_SURFACE_CHANNEL_INIT_H */ -- cgit v1.2.3 From 035cb3a3d4fe9634834b5814827e49adc9cf6b69 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Thu, 16 Jun 2016 14:52:41 -0700 Subject: Pass peer string to ChannelData ctor when available. --- include/grpc++/channel_filter.h | 13 +++++++++++-- src/core/lib/transport/transport.h | 8 ++++++++ 2 files changed, 19 insertions(+), 2 deletions(-) (limited to 'src/core') diff --git a/include/grpc++/channel_filter.h b/include/grpc++/channel_filter.h index 542e6a0f35..53e42a7cb8 100644 --- a/include/grpc++/channel_filter.h +++ b/include/grpc++/channel_filter.h @@ -62,8 +62,13 @@ class ChannelData { grpc_channel_element *elem, grpc_transport_op *op); + const char* peer() const { return peer_; } + protected: - explicit ChannelData(const grpc_channel_args &) {} + ChannelData(const grpc_channel_args &args, const char *peer) : peer_(peer) {} + + private: + const char *peer_; // Do not own. }; // Represents call data. @@ -96,8 +101,12 @@ class ChannelFilter { static void InitChannelElement(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_channel_element_args *args) { + const char* peer = args->optional_transport + ? grpc_transport_get_peer(exec_ctx, + args->optional_transport) + : nullptr; // Construct the object in the already-allocated memory. - new (elem->channel_data) ChannelDataType(*args->channel_args); + new (elem->channel_data) ChannelDataType(*args->channel_args, peer); } static void DestroyChannelElement(grpc_exec_ctx *exec_ctx, diff --git a/src/core/lib/transport/transport.h b/src/core/lib/transport/transport.h index ed06fc3ed2..107bb802f6 100644 --- a/src/core/lib/transport/transport.h +++ b/src/core/lib/transport/transport.h @@ -43,6 +43,10 @@ #include "src/core/lib/transport/byte_stream.h" #include "src/core/lib/transport/metadata_batch.h" +#ifdef __cplusplus +extern "C" { +#endif + /* forward declarations */ typedef struct grpc_transport grpc_transport; @@ -264,4 +268,8 @@ void grpc_transport_destroy(grpc_exec_ctx *exec_ctx, grpc_transport *transport); char *grpc_transport_get_peer(grpc_exec_ctx *exec_ctx, grpc_transport *transport); +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_TRANSPORT_TRANSPORT_H */ -- cgit v1.2.3 From 4fd2134dafc61af764b18dacee0acd8ef307dcc4 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Mon, 20 Jun 2016 09:23:55 -0700 Subject: Make another .h file accessible from C++. --- src/core/lib/security/context/security_context.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/core') diff --git a/src/core/lib/security/context/security_context.h b/src/core/lib/security/context/security_context.h index ef0c06b1fb..4e7666dfe3 100644 --- a/src/core/lib/security/context/security_context.h +++ b/src/core/lib/security/context/security_context.h @@ -37,6 +37,10 @@ #include "src/core/lib/iomgr/pollset.h" #include "src/core/lib/security/credentials/credentials.h" +#ifdef __cplusplus +extern "C" { +#endif + /* --- grpc_auth_context --- High level authentication context object. Can optionally be chained. */ @@ -111,4 +115,8 @@ grpc_auth_context *grpc_auth_context_from_arg(const grpc_arg *arg); grpc_auth_context *grpc_find_auth_context_in_args( const grpc_channel_args *args); +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_SECURITY_CONTEXT_SECURITY_CONTEXT_H */ -- cgit v1.2.3 From 083afc225d298db97b37c28034dad1d024bfb0f5 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Mon, 20 Jun 2016 13:33:11 -0700 Subject: Add comments indicating what the grpc_call_context_element values are for each array index. --- src/core/lib/channel/context.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'src/core') diff --git a/src/core/lib/channel/context.h b/src/core/lib/channel/context.h index c50e84279d..22f4cb62f3 100644 --- a/src/core/lib/channel/context.h +++ b/src/core/lib/channel/context.h @@ -34,10 +34,19 @@ #ifndef GRPC_CORE_LIB_CHANNEL_CONTEXT_H #define GRPC_CORE_LIB_CHANNEL_CONTEXT_H -/* Call object context pointers */ +// Call object context pointers. + +// Call context is represented as an array of grpc_call_context_elements. +// This enum represents the indexes into the array, where each index +// contains a different type of value. typedef enum { + // Value is either a grpc_client_security_context or a + // grpc_server_security_context. GRPC_CONTEXT_SECURITY = 0, + + // Value is a census_context. GRPC_CONTEXT_TRACING, + GRPC_CONTEXT_COUNT } grpc_context_index; -- cgit v1.2.3 From 7f8db257974a81e16d6865e8bf030a0bd69c10d3 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Fri, 24 Jun 2016 08:24:15 -0700 Subject: Bool-ify a couple of fields in grpc_transport_op. --- src/core/lib/surface/channel.c | 2 +- src/core/lib/surface/server.c | 12 +++++++----- src/core/lib/transport/transport.h | 4 ++-- 3 files changed, 10 insertions(+), 8 deletions(-) (limited to 'src/core') diff --git a/src/core/lib/surface/channel.c b/src/core/lib/surface/channel.c index f0b3c2e15d..905b4a97dd 100644 --- a/src/core/lib/surface/channel.c +++ b/src/core/lib/surface/channel.c @@ -336,7 +336,7 @@ void grpc_channel_destroy(grpc_channel *channel) { grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; GRPC_API_TRACE("grpc_channel_destroy(channel=%p)", 1, (channel)); memset(&op, 0, sizeof(op)); - op.disconnect = 1; + op.disconnect = true; elem = grpc_channel_stack_element(CHANNEL_STACK_FROM_CHANNEL(channel), 0); elem->filter->start_transport_op(&exec_ctx, elem, &op); diff --git a/src/core/lib/surface/server.c b/src/core/lib/surface/server.c index 88d898bc1c..6677e65c4c 100644 --- a/src/core/lib/surface/server.c +++ b/src/core/lib/surface/server.c @@ -270,7 +270,7 @@ static void shutdown_cleanup(grpc_exec_ctx *exec_ctx, void *arg, } static void send_shutdown(grpc_exec_ctx *exec_ctx, grpc_channel *channel, - int send_goaway, int send_disconnect) { + bool send_goaway, bool send_disconnect) { grpc_transport_op op; struct shutdown_cleanup_args *sc; grpc_channel_element *elem; @@ -291,8 +291,8 @@ static void send_shutdown(grpc_exec_ctx *exec_ctx, grpc_channel *channel, static void channel_broadcaster_shutdown(grpc_exec_ctx *exec_ctx, channel_broadcaster *cb, - int send_goaway, - int force_disconnect) { + bool send_goaway, + bool force_disconnect) { size_t i; for (i = 0; i < cb->num_channels; i++) { @@ -1217,7 +1217,8 @@ void grpc_server_shutdown_and_notify(grpc_server *server, l->destroy(&exec_ctx, server, l->arg, &l->destroy_done); } - channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 1, 0); + channel_broadcaster_shutdown(&exec_ctx, &broadcaster, true /* send_goaway */, + false /* force_disconnect */); done: grpc_exec_ctx_finish(&exec_ctx); @@ -1233,7 +1234,8 @@ void grpc_server_cancel_all_calls(grpc_server *server) { channel_broadcaster_init(server, &broadcaster); gpr_mu_unlock(&server->mu_global); - channel_broadcaster_shutdown(&exec_ctx, &broadcaster, 0, 1); + channel_broadcaster_shutdown(&exec_ctx, &broadcaster, false /* send_goaway */, + true /* force_disconnect */); grpc_exec_ctx_finish(&exec_ctx); } diff --git a/src/core/lib/transport/transport.h b/src/core/lib/transport/transport.h index 107bb802f6..b170014dc5 100644 --- a/src/core/lib/transport/transport.h +++ b/src/core/lib/transport/transport.h @@ -159,11 +159,11 @@ typedef struct grpc_transport_op { grpc_closure *on_connectivity_state_change; grpc_connectivity_state *connectivity_state; /** should the transport be disconnected */ - int disconnect; + bool disconnect; /** should we send a goaway? after a goaway is sent, once there are no more active calls on the transport, the transport should disconnect */ - int send_goaway; + bool send_goaway; /** what should the goaway contain? */ grpc_status_code goaway_status; gpr_slice *goaway_message; -- cgit v1.2.3 From 13e343464bd8abd01cec1df2b43f624906552055 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Fri, 24 Jun 2016 10:24:43 -0700 Subject: Another boolification. --- src/core/lib/transport/metadata_batch.c | 3 ++- src/core/lib/transport/metadata_batch.h | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'src/core') diff --git a/src/core/lib/transport/metadata_batch.c b/src/core/lib/transport/metadata_batch.c index e4398abeb7..84b5a74d51 100644 --- a/src/core/lib/transport/metadata_batch.c +++ b/src/core/lib/transport/metadata_batch.c @@ -33,6 +33,7 @@ #include "src/core/lib/transport/metadata_batch.h" +#include #include #include @@ -187,7 +188,7 @@ void grpc_metadata_batch_clear(grpc_metadata_batch *batch) { grpc_metadata_batch_filter(batch, no_metadata_for_you, NULL); } -int grpc_metadata_batch_is_empty(grpc_metadata_batch *batch) { +bool grpc_metadata_batch_is_empty(grpc_metadata_batch *batch) { return batch->list.head == NULL && gpr_time_cmp(gpr_inf_future(batch->deadline.clock_type), batch->deadline) == 0; diff --git a/src/core/lib/transport/metadata_batch.h b/src/core/lib/transport/metadata_batch.h index 7af823f7ca..dad0cc5510 100644 --- a/src/core/lib/transport/metadata_batch.h +++ b/src/core/lib/transport/metadata_batch.h @@ -34,6 +34,8 @@ #ifndef GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H #define GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H +#include + #include #include #include @@ -64,7 +66,7 @@ typedef struct grpc_metadata_batch { void grpc_metadata_batch_init(grpc_metadata_batch *batch); void grpc_metadata_batch_destroy(grpc_metadata_batch *batch); void grpc_metadata_batch_clear(grpc_metadata_batch *batch); -int grpc_metadata_batch_is_empty(grpc_metadata_batch *batch); +bool grpc_metadata_batch_is_empty(grpc_metadata_batch *batch); /* Returns the transport size of the batch. */ size_t grpc_metadata_batch_size(grpc_metadata_batch *batch); -- cgit v1.2.3 From 34d07d6f2a0b7d4c938aaf3502151eebba8b04b5 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Mon, 27 Jun 2016 09:53:59 -0700 Subject: Update comments. --- src/core/lib/transport/byte_stream.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'src/core') diff --git a/src/core/lib/transport/byte_stream.h b/src/core/lib/transport/byte_stream.h index 95519a9eaf..e64dce6283 100644 --- a/src/core/lib/transport/byte_stream.h +++ b/src/core/lib/transport/byte_stream.h @@ -59,13 +59,9 @@ struct grpc_byte_stream { * on_complete will not be called), 0 if the bytes will be available * asynchronously. * - * on entry, *remaining can be set as a hint as to the maximum number + * max_size_hint can be set as a hint as to the maximum number * of bytes that would be acceptable to read. * - * fills *buffer, *length, *remaining with the bytes, length of bytes - * and length of data remaining to be read before either returning 1 - * or calling on_complete. - * * once a slice is returned into *slice, it is owned by the caller. */ int grpc_byte_stream_next(grpc_exec_ctx *exec_ctx, -- cgit v1.2.3 From 07cd9c9e064e636c432500724bf5f91ad15d041a Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Mon, 27 Jun 2016 10:14:38 -0700 Subject: Initial attempt at a C++ wrapper for the C grpc_transport_op and grpc_transport_stream_op structs. --- include/grpc++/channel_filter.h | 167 ++++++++++++++++++++++++++++++-- src/core/lib/transport/metadata.h | 8 ++ src/core/lib/transport/metadata_batch.h | 8 ++ src/cpp/common/channel_filter.cc | 23 ++++- test/cpp/end2end/filter_end2end_test.cc | 6 +- third_party/protobuf | 2 +- 6 files changed, 200 insertions(+), 14 deletions(-) (limited to 'src/core') diff --git a/include/grpc++/channel_filter.h b/include/grpc++/channel_filter.h index 262739929a..2fa4ad31d8 100644 --- a/include/grpc++/channel_filter.h +++ b/include/grpc++/channel_filter.h @@ -35,13 +35,16 @@ #define GRPCXX_CHANNEL_FILTER_H #include +#include #include #include #include #include "src/core/lib/channel/channel_stack.h" +#include "src/core/lib/security/context/security_context.h" #include "src/core/lib/surface/channel_init.h" +#include "src/core/lib/transport/metadata_batch.h" // // An interface to define filters. @@ -54,16 +57,164 @@ namespace grpc { +// A C++ wrapper for the grpc_metadata_batch struct. +class MetadataBatch { + public: + explicit MetadataBatch(grpc_metadata_batch* batch) : batch_(batch) {} + + grpc_metadata_batch* batch() const { return batch_; } + + // Adds metadata and returns the newly allocated storage. + // The caller takes ownership of the result, which must exist for the + // lifetime of the gRPC call. + grpc_linked_mdelem* AddMetadata(const string& key, const string& value); + + class const_iterator : public std::iterator { + public: + const grpc_mdelem& operator*() const { return *elem_->md; } + const grpc_mdelem* operator->() const { return elem_->md; } + + const_iterator& operator++() { + elem_ = elem_->next; + return *this; + } + const_iterator operator++(int) { + const_iterator tmp(*this); + operator++(); + return tmp; + } + const_iterator& operator--() { + elem_ = elem_->prev; + return *this; + } + const_iterator operator--(int) { + const_iterator tmp(*this); + operator--(); + return tmp; + } + + bool operator==(const const_iterator& other) const { + return elem_ == other.elem_; + } + bool operator!=(const const_iterator& other) const { + return elem_ != other.elem_; + } + + private: + friend class MetadataBatch; + explicit const_iterator(grpc_linked_mdelem* elem) : elem_(elem) {} + + grpc_linked_mdelem* elem_; + }; + + const_iterator begin() const { return const_iterator(batch_->list.head); } + const_iterator end() const { return const_iterator(nullptr); } + + private: + grpc_metadata_batch* batch_; +}; + +// A C++ wrapper for the grpc_transport_op struct. +class TransportOp { + public: + explicit TransportOp(grpc_transport_op* op) : op_(op) {} + + grpc_transport_op* op() const { return op_; } + + bool disconnect() const { return op_->disconnect; } + bool send_goaway() const { return op_->send_goaway; } + + // TODO(roth): Add methods for additional fields as needed. + + private: + grpc_transport_op* op_; // Do not own. +}; + +// A C++ wrapper for the grpc_transport_stream_op struct. +class TransportStreamOp { + public: + explicit TransportStreamOp(grpc_transport_stream_op* op) + : op_(op), + send_initial_metadata_(op->send_initial_metadata), + send_trailing_metadata_(op->send_trailing_metadata), + recv_initial_metadata_(op->recv_initial_metadata), + recv_trailing_metadata_(op->recv_trailing_metadata) {} + + grpc_transport_stream_op* op() const { return op_; } + + grpc_closure* on_complete() const { return op_->on_complete; } + void set_on_complete(grpc_closure* closure) { + op_->on_complete = closure; + } + + MetadataBatch* send_initial_metadata() { + return op_->send_initial_metadata == nullptr + ? nullptr : &send_initial_metadata_; + } + MetadataBatch* send_trailing_metadata() { + return op_->send_trailing_metadata == nullptr + ? nullptr : &send_trailing_metadata_; + } + MetadataBatch* recv_initial_metadata() { + return op_->recv_initial_metadata == nullptr + ? nullptr : &recv_initial_metadata_; + } + MetadataBatch* recv_trailing_metadata() { + return op_->recv_trailing_metadata == nullptr + ? nullptr : &recv_trailing_metadata_; + } + + uint32_t* send_initial_metadata_flags() const { + return &op_->send_initial_metadata_flags; + } + + grpc_closure* recv_initial_metadata_ready() const { + return op_->recv_initial_metadata_ready; + } + void set_recv_initial_metadata_ready(grpc_closure* closure) { + op_->recv_initial_metadata_ready = closure; + } + + grpc_byte_stream* send_message() const { return op_->send_message; } + void set_send_message(grpc_byte_stream* send_message) { + op_->send_message = send_message; + } + + // To be called only on clients and servers, respectively. + grpc_client_security_context* client_security_context() const { + return (grpc_client_security_context*)op_->context[ + GRPC_CONTEXT_SECURITY].value; + } + grpc_server_security_context* server_security_context() const { + return (grpc_server_security_context*)op_->context[ + GRPC_CONTEXT_SECURITY].value; + } + + census_context* get_census_context() const { + return (census_context*)op_->context[GRPC_CONTEXT_TRACING].value; + } + + private: + grpc_transport_stream_op* op_; // Do not own. + MetadataBatch send_initial_metadata_; + MetadataBatch send_trailing_metadata_; + MetadataBatch recv_initial_metadata_; + MetadataBatch recv_trailing_metadata_; +}; + // Represents channel data. class ChannelData { public: virtual ~ChannelData() {} + const char* peer() const { return peer_; } + +// FIXME: find a way to avoid passing elem into these methods +// (same for CallData below) virtual void StartTransportOp(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, - grpc_transport_op *op); - - const char* peer() const { return peer_; } + TransportOp *op); protected: ChannelData(const grpc_channel_args &args, const char *peer) : peer_(peer) {} @@ -79,7 +230,7 @@ class CallData { virtual void StartTransportStreamOp(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op *op); + TransportStreamOp *op); virtual void SetPollsetOrPollsetSet(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, @@ -88,6 +239,8 @@ class CallData { virtual char *GetPeer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem); protected: +// FIXME: once PR #7024 has been merged, update this API to provide a +// way to return an error from call initialization explicit CallData(const ChannelData &) {} }; @@ -119,7 +272,8 @@ class ChannelFilter GRPC_FINAL { grpc_channel_element *elem, grpc_transport_op *op) { ChannelDataType *channel_data = (ChannelDataType *)elem->channel_data; - channel_data->StartTransportOp(exec_ctx, elem, op); + TransportOp op_wrapper(op); + channel_data->StartTransportOp(exec_ctx, elem, &op_wrapper); } static const size_t call_data_size = sizeof(CallDataType); @@ -143,7 +297,8 @@ class ChannelFilter GRPC_FINAL { grpc_call_element *elem, grpc_transport_stream_op *op) { CallDataType *call_data = (CallDataType *)elem->call_data; - call_data->StartTransportStreamOp(exec_ctx, elem, op); + TransportStreamOp op_wrapper(op); + call_data->StartTransportStreamOp(exec_ctx, elem, &op_wrapper); } static void SetPollsetOrPollsetSet(grpc_exec_ctx *exec_ctx, diff --git a/src/core/lib/transport/metadata.h b/src/core/lib/transport/metadata.h index 6d82f4d681..2b0921c8d7 100644 --- a/src/core/lib/transport/metadata.h +++ b/src/core/lib/transport/metadata.h @@ -37,6 +37,10 @@ #include #include +#ifdef __cplusplus +extern "C" { +#endif + /* This file provides a mechanism for tracking metadata through the grpc stack. It's not intended for consumption outside of the library. @@ -164,4 +168,8 @@ void grpc_mdctx_global_shutdown(void); extern gpr_slice (*grpc_chttp2_base64_encode_and_huffman_compress)( gpr_slice input); +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_TRANSPORT_METADATA_H */ diff --git a/src/core/lib/transport/metadata_batch.h b/src/core/lib/transport/metadata_batch.h index dad0cc5510..0424b4db98 100644 --- a/src/core/lib/transport/metadata_batch.h +++ b/src/core/lib/transport/metadata_batch.h @@ -42,6 +42,10 @@ #include #include "src/core/lib/transport/metadata.h" +#ifdef __cplusplus +extern "C" { +#endif + typedef struct grpc_linked_mdelem { grpc_mdelem *md; struct grpc_linked_mdelem *next; @@ -127,4 +131,8 @@ void grpc_metadata_batch_assert_ok(grpc_metadata_batch *comd); } while (0) #endif +#ifdef __cplusplus +} +#endif + #endif /* GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H */ diff --git a/src/cpp/common/channel_filter.cc b/src/cpp/common/channel_filter.cc index f473d63a25..b2fe3038f5 100644 --- a/src/cpp/common/channel_filter.cc +++ b/src/cpp/common/channel_filter.cc @@ -33,18 +33,33 @@ #include +#include + #include "src/core/lib/channel/channel_stack.h" namespace grpc { +// +// MetadataBatch +// + +grpc_linked_mdelem* MetadataBatch::AddMetadata( + const string& key, const string& value) { + grpc_linked_mdelem *storage = new grpc_linked_mdelem; + memset(storage, 0, sizeof(grpc_linked_mdelem)); + storage->md = grpc_mdelem_from_strings(key.c_str(), value.c_str()); + grpc_metadata_batch_link_head(batch_, storage); + return storage; +} + // // ChannelData // void ChannelData::StartTransportOp(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, - grpc_transport_op *op) { - grpc_channel_next_op(exec_ctx, elem, op); + TransportOp *op) { + grpc_channel_next_op(exec_ctx, elem, op->op()); } // @@ -53,8 +68,8 @@ void ChannelData::StartTransportOp(grpc_exec_ctx *exec_ctx, void CallData::StartTransportStreamOp(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_transport_stream_op *op) { - grpc_call_next_op(exec_ctx, elem, op); + TransportStreamOp *op) { + grpc_call_next_op(exec_ctx, elem, op->op()); } void CallData::SetPollsetOrPollsetSet(grpc_exec_ctx *exec_ctx, diff --git a/test/cpp/end2end/filter_end2end_test.cc b/test/cpp/end2end/filter_end2end_test.cc index b21d377d5d..dcaca10c7f 100644 --- a/test/cpp/end2end/filter_end2end_test.cc +++ b/test/cpp/end2end/filter_end2end_test.cc @@ -125,11 +125,11 @@ class CallDataImpl : public CallData { : CallData(channel_data) {} void StartTransportStreamOp(grpc_exec_ctx* exec_ctx, grpc_call_element* elem, - grpc_transport_stream_op* op) GRPC_OVERRIDE { + TransportStreamOp* op) GRPC_OVERRIDE { // Incrementing the counter could be done from the ctor, but we want // to test that the individual methods are actually called correctly. - if (op->recv_initial_metadata != nullptr) IncrementCallCounter(); - grpc_call_next_op(exec_ctx, elem, op); + if (op->recv_initial_metadata() != nullptr) IncrementCallCounter(); + grpc_call_next_op(exec_ctx, elem, op->op()); } }; diff --git a/third_party/protobuf b/third_party/protobuf index 3470b6895a..d4d13a4349 160000 --- a/third_party/protobuf +++ b/third_party/protobuf @@ -1 +1 @@ -Subproject commit 3470b6895aa659b7559ed678e029a5338e535f14 +Subproject commit d4d13a4349e4e59d67f311185ddcc1890d956d7a -- cgit v1.2.3 From f9d8e9064ba9aa20c944441f4890866ff3b98141 Mon Sep 17 00:00:00 2001 From: "Mark D. Roth" Date: Thu, 28 Jul 2016 09:31:56 -0700 Subject: Code review changes. --- src/core/lib/channel/context.h | 14 +++++++------- src/cpp/common/channel_filter.cc | 10 +--------- src/cpp/common/channel_filter.h | 27 ++++++++++++++++++++------- 3 files changed, 28 insertions(+), 23 deletions(-) (limited to 'src/core') diff --git a/src/core/lib/channel/context.h b/src/core/lib/channel/context.h index 22f4cb62f3..071c5f695c 100644 --- a/src/core/lib/channel/context.h +++ b/src/core/lib/channel/context.h @@ -34,17 +34,17 @@ #ifndef GRPC_CORE_LIB_CHANNEL_CONTEXT_H #define GRPC_CORE_LIB_CHANNEL_CONTEXT_H -// Call object context pointers. +/// Call object context pointers. -// Call context is represented as an array of grpc_call_context_elements. -// This enum represents the indexes into the array, where each index -// contains a different type of value. +/// Call context is represented as an array of \a grpc_call_context_elements. +/// This enum represents the indexes into the array, where each index +/// contains a different type of value. typedef enum { - // Value is either a grpc_client_security_context or a - // grpc_server_security_context. + /// Value is either a \a grpc_client_security_context or a + /// \a grpc_server_security_context. GRPC_CONTEXT_SECURITY = 0, - // Value is a census_context. + /// Value is a \a census_context. GRPC_CONTEXT_TRACING, GRPC_CONTEXT_COUNT diff --git a/src/cpp/common/channel_filter.cc b/src/cpp/common/channel_filter.cc index 8a4149bbca..25cd49cb7c 100644 --- a/src/cpp/common/channel_filter.cc +++ b/src/cpp/common/channel_filter.cc @@ -38,9 +38,7 @@ namespace grpc { -// // MetadataBatch -// grpc_linked_mdelem *MetadataBatch::AddMetadata(const string &key, const string &value) { @@ -51,9 +49,7 @@ grpc_linked_mdelem *MetadataBatch::AddMetadata(const string &key, return storage; } -// // ChannelData -// void ChannelData::StartTransportOp(grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, @@ -61,9 +57,7 @@ void ChannelData::StartTransportOp(grpc_exec_ctx *exec_ctx, grpc_channel_next_op(exec_ctx, elem, op->op()); } -// // CallData -// void CallData::StartTransportStreamOp(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, @@ -81,9 +75,7 @@ char *CallData::GetPeer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { return grpc_call_next_get_peer(exec_ctx, elem); } -// -// RegisterChannelFilter() -// +// internal code used by RegisterChannelFilter() namespace internal { diff --git a/src/cpp/common/channel_filter.h b/src/cpp/common/channel_filter.h index f3cbdb6224..6a405f567c 100644 --- a/src/cpp/common/channel_filter.h +++ b/src/cpp/common/channel_filter.h @@ -47,7 +47,6 @@ #include "src/core/lib/surface/channel_init.h" #include "src/core/lib/transport/metadata_batch.h" -/// /// An interface to define filters. /// /// To define a filter, implement a subclass of each of \c CallData and @@ -56,20 +55,22 @@ /// RegisterChannelFilter( /// "name-of-filter", GRPC_SERVER_CHANNEL, INT_MAX, nullptr); /// \endcode -/// namespace grpc { /// A C++ wrapper for the \c grpc_metadata_batch struct. class MetadataBatch { public: + /// Borrows a pointer to \a batch, but does NOT take ownership. + /// The caller must ensure that \a batch continues to exist for as + /// long as the MetadataBatch object does. explicit MetadataBatch(grpc_metadata_batch *batch) : batch_(batch) {} grpc_metadata_batch *batch() const { return batch_; } - // Adds metadata and returns the newly allocated storage. - // The caller takes ownership of the result, which must exist for the - // lifetime of the gRPC call. + /// Adds metadata and returns the newly allocated storage. + /// The caller takes ownership of the result, which must exist for the + /// lifetime of the gRPC call. grpc_linked_mdelem *AddMetadata(const string &key, const string &value); class const_iterator : public std::iteratorsend_initial_metadata), @@ -185,7 +192,7 @@ class TransportStreamOp { op_->send_message = send_message; } - // To be called only on clients and servers, respectively. + /// To be called only on clients and servers, respectively. grpc_client_security_context *client_security_context() const { return (grpc_client_security_context *)op_->context[GRPC_CONTEXT_SECURITY] .value; @@ -214,7 +221,7 @@ class ChannelData { if (peer_) gpr_free((void *)peer_); } - // Caller does NOT take ownership of result. + /// Caller does NOT take ownership of result. const char *peer() const { return peer_; } // TODO(roth): Find a way to avoid passing elem into these methods. @@ -234,18 +241,22 @@ class CallData { public: virtual ~CallData() {} + /// Initializes the call data. virtual grpc_error *Init() { return GRPC_ERROR_NONE; } // TODO(roth): Find a way to avoid passing elem into these methods. + /// Starts a new stream operation. virtual void StartTransportStreamOp(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, TransportStreamOp *op); + /// Sets a pollset or pollset set. virtual void SetPollsetOrPollsetSet(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, grpc_polling_entity *pollent); + /// Gets the peer name. virtual char *GetPeer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem); protected: @@ -255,6 +266,8 @@ class CallData { namespace internal { // Defines static members for passing to C core. +// Members of this class correspond to the members of the C +// grpc_channel_filter struct. template class ChannelFilter GRPC_FINAL { public: -- cgit v1.2.3