From d4c98331874f2717dc03499f0e08820c81079a1e Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Thu, 31 Mar 2016 13:45:47 -0700 Subject: Reposition files to optionalize client_config system --- src/core/ext/client_config/README.md | 66 ++ src/core/ext/client_config/channel_connectivity.c | 207 +++++++ src/core/ext/client_config/client_channel.c | 526 ++++++++++++++++ src/core/ext/client_config/client_channel.h | 63 ++ src/core/ext/client_config/client_config.c | 74 +++ src/core/ext/client_config/client_config.h | 53 ++ src/core/ext/client_config/connector.c | 55 ++ src/core/ext/client_config/connector.h | 92 +++ .../client_config/default_initial_connect_string.c | 39 ++ .../ext/client_config/initial_connect_string.c | 53 ++ .../ext/client_config/initial_connect_string.h | 50 ++ src/core/ext/client_config/lb_policy.c | 134 ++++ src/core/ext/client_config/lb_policy.h | 144 +++++ src/core/ext/client_config/lb_policy_factory.c | 49 ++ src/core/ext/client_config/lb_policy_factory.h | 78 +++ src/core/ext/client_config/lb_policy_registry.c | 83 +++ src/core/ext/client_config/lb_policy_registry.h | 55 ++ src/core/ext/client_config/resolver.c | 82 +++ src/core/ext/client_config/resolver.h | 94 +++ src/core/ext/client_config/resolver_factory.c | 55 ++ src/core/ext/client_config/resolver_factory.h | 82 +++ src/core/ext/client_config/resolver_registry.c | 145 +++++ src/core/ext/client_config/resolver_registry.h | 69 +++ src/core/ext/client_config/subchannel.c | 678 +++++++++++++++++++++ src/core/ext/client_config/subchannel.h | 174 ++++++ src/core/ext/client_config/subchannel_factory.c | 49 ++ src/core/ext/client_config/subchannel_factory.h | 66 ++ src/core/ext/client_config/subchannel_index.c | 262 ++++++++ src/core/ext/client_config/subchannel_index.h | 77 +++ src/core/ext/client_config/uri_parser.c | 242 ++++++++ src/core/ext/client_config/uri_parser.h | 51 ++ src/core/ext/lb_policy/grpclb/load_balancer_api.h | 2 +- src/core/ext/lb_policy/pick_first/pick_first.c | 2 +- src/core/ext/lb_policy/round_robin/round_robin.c | 2 +- src/core/ext/resolver/dns/native/dns_resolver.c | 4 +- src/core/ext/resolver/sockaddr/sockaddr_resolver.c | 6 +- .../ext/resolver/zookeeper/zookeeper_resolver.c | 6 +- .../chttp2/client/insecure/channel_create.c | 4 +- .../chttp2/client/secure/secure_channel_create.c | 4 +- src/core/lib/channel/client_channel.c | 526 ---------------- src/core/lib/channel/client_channel.h | 63 -- src/core/lib/channel/subchannel_call_holder.h | 2 +- src/core/lib/client_config/README.md | 66 -- src/core/lib/client_config/client_config.c | 74 --- src/core/lib/client_config/client_config.h | 53 -- src/core/lib/client_config/connector.c | 55 -- src/core/lib/client_config/connector.h | 92 --- .../client_config/default_initial_connect_string.c | 39 -- .../lib/client_config/initial_connect_string.c | 53 -- .../lib/client_config/initial_connect_string.h | 50 -- src/core/lib/client_config/lb_policy.c | 134 ---- src/core/lib/client_config/lb_policy.h | 144 ----- src/core/lib/client_config/lb_policy_factory.c | 49 -- src/core/lib/client_config/lb_policy_factory.h | 78 --- src/core/lib/client_config/lb_policy_registry.c | 83 --- src/core/lib/client_config/lb_policy_registry.h | 55 -- src/core/lib/client_config/resolver.c | 82 --- src/core/lib/client_config/resolver.h | 94 --- src/core/lib/client_config/resolver_factory.c | 55 -- src/core/lib/client_config/resolver_factory.h | 82 --- src/core/lib/client_config/resolver_registry.c | 145 ----- src/core/lib/client_config/resolver_registry.h | 69 --- src/core/lib/client_config/subchannel.c | 678 --------------------- src/core/lib/client_config/subchannel.h | 174 ------ src/core/lib/client_config/subchannel_factory.c | 49 -- src/core/lib/client_config/subchannel_factory.h | 66 -- src/core/lib/client_config/subchannel_index.c | 262 -------- src/core/lib/client_config/subchannel_index.h | 77 --- src/core/lib/client_config/uri_parser.c | 242 -------- src/core/lib/client_config/uri_parser.h | 51 -- src/core/lib/iomgr/unix_sockets_posix.h | 4 +- src/core/lib/surface/channel.c | 2 +- src/core/lib/surface/channel.h | 2 +- src/core/lib/surface/channel_connectivity.c | 207 ------- src/core/lib/surface/init.c | 10 +- src/python/grpcio/grpc_core_dependencies.py | 32 +- 76 files changed, 3988 insertions(+), 3988 deletions(-) create mode 100644 src/core/ext/client_config/README.md create mode 100644 src/core/ext/client_config/channel_connectivity.c create mode 100644 src/core/ext/client_config/client_channel.c create mode 100644 src/core/ext/client_config/client_channel.h create mode 100644 src/core/ext/client_config/client_config.c create mode 100644 src/core/ext/client_config/client_config.h create mode 100644 src/core/ext/client_config/connector.c create mode 100644 src/core/ext/client_config/connector.h create mode 100644 src/core/ext/client_config/default_initial_connect_string.c create mode 100644 src/core/ext/client_config/initial_connect_string.c create mode 100644 src/core/ext/client_config/initial_connect_string.h create mode 100644 src/core/ext/client_config/lb_policy.c create mode 100644 src/core/ext/client_config/lb_policy.h create mode 100644 src/core/ext/client_config/lb_policy_factory.c create mode 100644 src/core/ext/client_config/lb_policy_factory.h create mode 100644 src/core/ext/client_config/lb_policy_registry.c create mode 100644 src/core/ext/client_config/lb_policy_registry.h create mode 100644 src/core/ext/client_config/resolver.c create mode 100644 src/core/ext/client_config/resolver.h create mode 100644 src/core/ext/client_config/resolver_factory.c create mode 100644 src/core/ext/client_config/resolver_factory.h create mode 100644 src/core/ext/client_config/resolver_registry.c create mode 100644 src/core/ext/client_config/resolver_registry.h create mode 100644 src/core/ext/client_config/subchannel.c create mode 100644 src/core/ext/client_config/subchannel.h create mode 100644 src/core/ext/client_config/subchannel_factory.c create mode 100644 src/core/ext/client_config/subchannel_factory.h create mode 100644 src/core/ext/client_config/subchannel_index.c create mode 100644 src/core/ext/client_config/subchannel_index.h create mode 100644 src/core/ext/client_config/uri_parser.c create mode 100644 src/core/ext/client_config/uri_parser.h delete mode 100644 src/core/lib/channel/client_channel.c delete mode 100644 src/core/lib/channel/client_channel.h delete mode 100644 src/core/lib/client_config/README.md delete mode 100644 src/core/lib/client_config/client_config.c delete mode 100644 src/core/lib/client_config/client_config.h delete mode 100644 src/core/lib/client_config/connector.c delete mode 100644 src/core/lib/client_config/connector.h delete mode 100644 src/core/lib/client_config/default_initial_connect_string.c delete mode 100644 src/core/lib/client_config/initial_connect_string.c delete mode 100644 src/core/lib/client_config/initial_connect_string.h delete mode 100644 src/core/lib/client_config/lb_policy.c delete mode 100644 src/core/lib/client_config/lb_policy.h delete mode 100644 src/core/lib/client_config/lb_policy_factory.c delete mode 100644 src/core/lib/client_config/lb_policy_factory.h delete mode 100644 src/core/lib/client_config/lb_policy_registry.c delete mode 100644 src/core/lib/client_config/lb_policy_registry.h delete mode 100644 src/core/lib/client_config/resolver.c delete mode 100644 src/core/lib/client_config/resolver.h delete mode 100644 src/core/lib/client_config/resolver_factory.c delete mode 100644 src/core/lib/client_config/resolver_factory.h delete mode 100644 src/core/lib/client_config/resolver_registry.c delete mode 100644 src/core/lib/client_config/resolver_registry.h delete mode 100644 src/core/lib/client_config/subchannel.c delete mode 100644 src/core/lib/client_config/subchannel.h delete mode 100644 src/core/lib/client_config/subchannel_factory.c delete mode 100644 src/core/lib/client_config/subchannel_factory.h delete mode 100644 src/core/lib/client_config/subchannel_index.c delete mode 100644 src/core/lib/client_config/subchannel_index.h delete mode 100644 src/core/lib/client_config/uri_parser.c delete mode 100644 src/core/lib/client_config/uri_parser.h delete mode 100644 src/core/lib/surface/channel_connectivity.c (limited to 'src') diff --git a/src/core/ext/client_config/README.md b/src/core/ext/client_config/README.md new file mode 100644 index 0000000000..fff7a5af5b --- /dev/null +++ b/src/core/ext/client_config/README.md @@ -0,0 +1,66 @@ +Client Configuration Support for GRPC +===================================== + +This library provides high level configuration machinery to construct client +channels and load balance between them. + +Each grpc_channel is created with a grpc_resolver. It is the resolver's duty +to resolve a name into configuration data for the channel. Such configuration +data might include: + +- a list of (ip, port) addresses to connect to +- a load balancing policy to decide which server to send a request to +- a set of filters to mutate outgoing requests (say, by adding metadata) + +The resolver provides this data as a stream of grpc_client_config objects to +the channel. We represent configuration as a stream so that it can be changed +by the resolver during execution, by reacting to external events (such as a +new configuration file being pushed to some store). + + +Load Balancing +-------------- + +Load balancing configuration is provided by a grpc_lb_policy object, stored as +part of grpc_client_config. + +The primary job of the load balancing policies is to pick a target server given only the +initial metadata for a request. It does this by providing a grpc_subchannel +object to the owning channel. + + +Sub-Channels +------------ + +A sub-channel provides a connection to a server for a client channel. It has a +connectivity state like a regular channel, and so can be connected or +disconnected. This connectivity state can be used to inform load balancing +decisions (for example, by avoiding disconnected backends). + +Configured sub-channels are fully setup to participate in the grpc data plane. +Their behavior is specified by a set of grpc channel filters defined at their +construction. To customize this behavior, resolvers build +grpc_subchannel_factory objects, which use the decorator pattern to customize +construction arguments for concrete grpc_subchannel instances. + + +Naming for GRPC +=============== + +Names in GRPC are represented by a URI (as defined in +[RFC 3986](https://tools.ietf.org/html/rfc3986)). + +The following schemes are currently supported: + +dns:///host:port - dns schemes are currently supported so long as authority is + empty (authority based dns resolution is expected in a future + release) + +unix:path - the unix scheme is used to create and connect to unix domain + sockets - the authority must be empty, and the path + represents the absolute or relative path to the desired + socket + +ipv4:host:port - a pre-resolved ipv4 dotted decimal address/port combination + +ipv6:[host]:port - a pre-resolved ipv6 address/port combination diff --git a/src/core/ext/client_config/channel_connectivity.c b/src/core/ext/client_config/channel_connectivity.c new file mode 100644 index 0000000000..3ebc333608 --- /dev/null +++ b/src/core/ext/client_config/channel_connectivity.c @@ -0,0 +1,207 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/lib/surface/channel.h" + +#include +#include + +#include "src/core/ext/client_config/client_channel.h" +#include "src/core/lib/iomgr/timer.h" +#include "src/core/lib/surface/api_trace.h" +#include "src/core/lib/surface/completion_queue.h" + +grpc_connectivity_state grpc_channel_check_connectivity_state( + grpc_channel *channel, int try_to_connect) { + /* forward through to the underlying client channel */ + 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; + GRPC_API_TRACE( + "grpc_channel_check_connectivity_state(channel=%p, try_to_connect=%d)", 2, + (channel, try_to_connect)); + if (client_channel_elem->filter == &grpc_client_channel_filter) { + state = grpc_client_channel_check_connectivity_state( + &exec_ctx, client_channel_elem, try_to_connect); + grpc_exec_ctx_finish(&exec_ctx); + return state; + } + gpr_log(GPR_ERROR, + "grpc_channel_check_connectivity_state called on something that is " + "not a (u)client channel, but '%s'", + client_channel_elem->filter->name); + grpc_exec_ctx_finish(&exec_ctx); + return GRPC_CHANNEL_FATAL_FAILURE; +} + +typedef enum { + WAITING, + CALLING_BACK, + CALLING_BACK_AND_FINISHED, + CALLED_BACK +} callback_phase; + +typedef struct { + gpr_mu mu; + callback_phase phase; + int success; + grpc_closure on_complete; + grpc_timer alarm; + grpc_connectivity_state state; + grpc_completion_queue *cq; + grpc_cq_completion completion_storage; + grpc_channel *channel; + 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( + grpc_channel_get_channel_stack(w->channel)); + if (client_channel_elem->filter == &grpc_client_channel_filter) { + GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, w->channel, + "watch_channel_connectivity"); + } else { + abort(); + } + gpr_mu_destroy(&w->mu); + gpr_free(w); +} + +static void finished_completion(grpc_exec_ctx *exec_ctx, void *pw, + grpc_cq_completion *ignored) { + int delete = 0; + state_watcher *w = pw; + gpr_mu_lock(&w->mu); + switch (w->phase) { + case WAITING: + case CALLED_BACK: + GPR_UNREACHABLE_CODE(return ); + case CALLING_BACK: + w->phase = CALLED_BACK; + break; + case CALLING_BACK_AND_FINISHED: + delete = 1; + break; + } + gpr_mu_unlock(&w->mu); + + if (delete) { + delete_state_watcher(exec_ctx, w); + } +} + +static void partly_done(grpc_exec_ctx *exec_ctx, state_watcher *w, + int due_to_completion) { + int delete = 0; + + if (due_to_completion) { + grpc_timer_cancel(exec_ctx, &w->alarm); + } + + gpr_mu_lock(&w->mu); + if (due_to_completion) { + w->success = 1; + } + switch (w->phase) { + case WAITING: + w->phase = CALLING_BACK; + grpc_cq_end_op(exec_ctx, w->cq, w->tag, w->success, finished_completion, + w, &w->completion_storage); + break; + case CALLING_BACK: + w->phase = CALLING_BACK_AND_FINISHED; + break; + case CALLING_BACK_AND_FINISHED: + GPR_UNREACHABLE_CODE(return ); + case CALLED_BACK: + delete = 1; + break; + } + gpr_mu_unlock(&w->mu); + + if (delete) { + delete_state_watcher(exec_ctx, w); + } +} + +static void watch_complete(grpc_exec_ctx *exec_ctx, void *pw, bool success) { + partly_done(exec_ctx, pw, 1); +} + +static void timeout_complete(grpc_exec_ctx *exec_ctx, void *pw, bool success) { + partly_done(exec_ctx, pw, 0); +} + +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_stack_last_element(grpc_channel_get_channel_stack(channel)); + grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; + state_watcher *w = gpr_malloc(sizeof(*w)); + + GRPC_API_TRACE( + "grpc_channel_watch_connectivity_state(" + "channel=%p, last_observed_state=%d, " + "deadline=gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " + "cq=%p, tag=%p)", + 7, (channel, (int)last_observed_state, (long long)deadline.tv_sec, + (int)deadline.tv_nsec, (int)deadline.clock_type, cq, tag)); + + grpc_cq_begin_op(cq, tag); + + gpr_mu_init(&w->mu); + grpc_closure_init(&w->on_complete, watch_complete, w); + w->phase = WAITING; + w->state = last_observed_state; + w->success = 0; + w->cq = cq; + w->tag = tag; + w->channel = channel; + + grpc_timer_init(&exec_ctx, &w->alarm, + gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC), + timeout_complete, w, gpr_now(GPR_CLOCK_MONOTONIC)); + + if (client_channel_elem->filter == &grpc_client_channel_filter) { + GRPC_CHANNEL_INTERNAL_REF(channel, "watch_channel_connectivity"); + grpc_client_channel_watch_connectivity_state(&exec_ctx, client_channel_elem, + grpc_cq_pollset(cq), &w->state, + &w->on_complete); + } else { + abort(); + } + + grpc_exec_ctx_finish(&exec_ctx); +} diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c new file mode 100644 index 0000000000..0ff67a7d87 --- /dev/null +++ b/src/core/ext/client_config/client_channel.c @@ -0,0 +1,526 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/client_channel.h" + +#include +#include + +#include +#include +#include +#include + +#include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/channel/connected_channel.h" +#include "src/core/lib/channel/subchannel_call_holder.h" +#include "src/core/lib/iomgr/iomgr.h" +#include "src/core/lib/profiling/timers.h" +#include "src/core/lib/support/string.h" +#include "src/core/lib/surface/channel.h" +#include "src/core/lib/transport/connectivity_state.h" + +/* Client channel implementation */ + +typedef grpc_subchannel_call_holder call_data; + +typedef struct client_channel_channel_data { + /** resolver for this channel */ + grpc_resolver *resolver; + /** have we started resolving this channel */ + int started_resolving; + + /** mutex protecting client configuration, including all + variables below in this data structure */ + gpr_mu mu_config; + /** currently active load balancer - guarded by mu_config */ + grpc_lb_policy *lb_policy; + /** incoming configuration - set by resolver.next + guarded by mu_config */ + grpc_client_config *incoming_configuration; + /** a list of closures that are all waiting for config to come in */ + grpc_closure_list waiting_for_config_closures; + /** resolver callback */ + grpc_closure on_config_changed; + /** connectivity state being tracked */ + grpc_connectivity_state_tracker state_tracker; + /** when an lb_policy arrives, should we try to exit idle */ + int exit_idle_when_lb_policy_arrives; + /** owning stack */ + grpc_channel_stack *owning_stack; + /** interested parties (owned) */ + grpc_pollset_set *interested_parties; +} 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; + grpc_closure on_changed; + grpc_connectivity_state state; + grpc_lb_policy *lb_policy; +} lb_policy_connectivity_watcher; + +typedef struct { + grpc_closure closure; + grpc_call_element *elem; +} waiting_call; + +static char *cc_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { + return grpc_subchannel_call_holder_get_peer(exec_ctx, elem->call_data); +} + +static void cc_start_transport_stream_op(grpc_exec_ctx *exec_ctx, + grpc_call_element *elem, + grpc_transport_stream_op *op) { + GRPC_CALL_LOG_OP(GPR_INFO, elem, op); + grpc_subchannel_call_holder_perform_op(exec_ctx, elem->call_data, op); +} + +static void watch_lb_policy(grpc_exec_ctx *exec_ctx, channel_data *chand, + grpc_lb_policy *lb_policy, + grpc_connectivity_state current_state); + +static void on_lb_policy_state_changed_locked( + grpc_exec_ctx *exec_ctx, lb_policy_connectivity_watcher *w) { + grpc_connectivity_state publish_state = w->state; + /* check if the notification is for a stale policy */ + if (w->lb_policy != w->chand->lb_policy) return; + + if (publish_state == GRPC_CHANNEL_FATAL_FAILURE && + w->chand->resolver != NULL) { + publish_state = GRPC_CHANNEL_TRANSIENT_FAILURE; + grpc_resolver_channel_saw_error(exec_ctx, w->chand->resolver); + GRPC_LB_POLICY_UNREF(exec_ctx, w->chand->lb_policy, "channel"); + w->chand->lb_policy = NULL; + } + grpc_connectivity_state_set(exec_ctx, &w->chand->state_tracker, publish_state, + "lb_changed"); + if (w->state != GRPC_CHANNEL_FATAL_FAILURE) { + watch_lb_policy(exec_ctx, w->chand, w->lb_policy, w->state); + } +} + +static void on_lb_policy_state_changed(grpc_exec_ctx *exec_ctx, void *arg, + bool iomgr_success) { + lb_policy_connectivity_watcher *w = arg; + + gpr_mu_lock(&w->chand->mu_config); + on_lb_policy_state_changed_locked(exec_ctx, w); + gpr_mu_unlock(&w->chand->mu_config); + + GRPC_CHANNEL_STACK_UNREF(exec_ctx, w->chand->owning_stack, "watch_lb_policy"); + gpr_free(w); +} + +static void watch_lb_policy(grpc_exec_ctx *exec_ctx, channel_data *chand, + grpc_lb_policy *lb_policy, + grpc_connectivity_state current_state) { + lb_policy_connectivity_watcher *w = 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, w); + w->state = current_state; + w->lb_policy = lb_policy; + grpc_lb_policy_notify_on_state_change(exec_ctx, lb_policy, &w->state, + &w->on_changed); +} + +static void cc_on_config_changed(grpc_exec_ctx *exec_ctx, void *arg, + bool iomgr_success) { + channel_data *chand = arg; + grpc_lb_policy *lb_policy = NULL; + grpc_lb_policy *old_lb_policy; + grpc_connectivity_state state = GRPC_CHANNEL_TRANSIENT_FAILURE; + int exit_idle = 0; + + if (chand->incoming_configuration != NULL) { + lb_policy = grpc_client_config_get_lb_policy(chand->incoming_configuration); + if (lb_policy != NULL) { + GRPC_LB_POLICY_REF(lb_policy, "channel"); + GRPC_LB_POLICY_REF(lb_policy, "config_change"); + state = grpc_lb_policy_check_connectivity(exec_ctx, lb_policy); + } + + grpc_client_config_unref(exec_ctx, chand->incoming_configuration); + } + + chand->incoming_configuration = NULL; + + if (lb_policy != NULL) { + grpc_pollset_set_add_pollset_set(exec_ctx, lb_policy->interested_parties, + chand->interested_parties); + } + + gpr_mu_lock(&chand->mu_config); + old_lb_policy = chand->lb_policy; + chand->lb_policy = lb_policy; + if (lb_policy != NULL || chand->resolver == NULL /* disconnected */) { + grpc_exec_ctx_enqueue_list(exec_ctx, &chand->waiting_for_config_closures, + NULL); + } + if (lb_policy != NULL && chand->exit_idle_when_lb_policy_arrives) { + GRPC_LB_POLICY_REF(lb_policy, "exit_idle"); + exit_idle = 1; + chand->exit_idle_when_lb_policy_arrives = 0; + } + + if (iomgr_success && chand->resolver) { + grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, state, + "new_lb+resolver"); + if (lb_policy != NULL) { + watch_lb_policy(exec_ctx, chand, lb_policy, state); + } + GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); + grpc_resolver_next(exec_ctx, chand->resolver, + &chand->incoming_configuration, + &chand->on_config_changed); + gpr_mu_unlock(&chand->mu_config); + } else { + if (chand->resolver != NULL) { + grpc_resolver_shutdown(exec_ctx, chand->resolver); + GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); + chand->resolver = NULL; + } + grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, + GRPC_CHANNEL_FATAL_FAILURE, "resolver_gone"); + gpr_mu_unlock(&chand->mu_config); + } + + if (exit_idle) { + grpc_lb_policy_exit_idle(exec_ctx, lb_policy); + GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "exit_idle"); + } + + if (old_lb_policy != NULL) { + grpc_pollset_set_del_pollset_set( + exec_ctx, old_lb_policy->interested_parties, chand->interested_parties); + GRPC_LB_POLICY_UNREF(exec_ctx, old_lb_policy, "channel"); + } + + if (lb_policy != NULL) { + GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "config_change"); + } + + GRPC_CHANNEL_STACK_UNREF(exec_ctx, chand->owning_stack, "resolver"); +} + +static void cc_start_transport_op(grpc_exec_ctx *exec_ctx, + grpc_channel_element *elem, + grpc_transport_op *op) { + channel_data *chand = elem->channel_data; + + grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, true, NULL); + + GPR_ASSERT(op->set_accept_stream == false); + if (op->bind_pollset != NULL) { + grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties, + op->bind_pollset); + } + + gpr_mu_lock(&chand->mu_config); + if (op->on_connectivity_state_change != NULL) { + 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; + } + + if (op->send_ping != NULL) { + if (chand->lb_policy == NULL) { + grpc_exec_ctx_enqueue(exec_ctx, op->send_ping, false, NULL); + } else { + grpc_lb_policy_ping_one(exec_ctx, chand->lb_policy, op->send_ping); + op->bind_pollset = NULL; + } + op->send_ping = NULL; + } + + if (op->disconnect && chand->resolver != NULL) { + grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, + GRPC_CHANNEL_FATAL_FAILURE, "disconnect"); + grpc_resolver_shutdown(exec_ctx, chand->resolver); + GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); + chand->resolver = NULL; + if (chand->lb_policy != NULL) { + 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; + } + } + gpr_mu_unlock(&chand->mu_config); +} + +typedef struct { + grpc_metadata_batch *initial_metadata; + grpc_connected_subchannel **connected_subchannel; + grpc_closure *on_ready; + grpc_call_element *elem; + grpc_closure closure; +} continue_picking_args; + +static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *arg, + grpc_metadata_batch *initial_metadata, + grpc_connected_subchannel **connected_subchannel, + grpc_closure *on_ready); + +static void continue_picking(grpc_exec_ctx *exec_ctx, void *arg, bool success) { + continue_picking_args *cpa = arg; + if (!success) { + grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); + } else if (cpa->connected_subchannel == NULL) { + /* cancelled, do nothing */ + } else if (cc_pick_subchannel(exec_ctx, cpa->elem, cpa->initial_metadata, + cpa->connected_subchannel, cpa->on_ready)) { + grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, true, NULL); + } + gpr_free(cpa); +} + +static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *elemp, + grpc_metadata_batch *initial_metadata, + grpc_connected_subchannel **connected_subchannel, + grpc_closure *on_ready) { + grpc_call_element *elem = elemp; + channel_data *chand = elem->channel_data; + call_data *calld = elem->call_data; + continue_picking_args *cpa; + grpc_closure *closure; + + GPR_ASSERT(connected_subchannel); + + gpr_mu_lock(&chand->mu_config); + if (initial_metadata == NULL) { + if (chand->lb_policy != NULL) { + grpc_lb_policy_cancel_pick(exec_ctx, chand->lb_policy, + connected_subchannel); + } + for (closure = chand->waiting_for_config_closures.head; closure != NULL; + closure = grpc_closure_next(closure)) { + cpa = closure->cb_arg; + if (cpa->connected_subchannel == connected_subchannel) { + cpa->connected_subchannel = NULL; + grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); + } + } + gpr_mu_unlock(&chand->mu_config); + return 1; + } + if (chand->lb_policy != NULL) { + grpc_lb_policy *lb_policy = chand->lb_policy; + int r; + GRPC_LB_POLICY_REF(lb_policy, "cc_pick_subchannel"); + gpr_mu_unlock(&chand->mu_config); + r = grpc_lb_policy_pick(exec_ctx, lb_policy, calld->pollset, + initial_metadata, connected_subchannel, on_ready); + GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "cc_pick_subchannel"); + return r; + } + if (chand->resolver != NULL && !chand->started_resolving) { + chand->started_resolving = 1; + GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); + grpc_resolver_next(exec_ctx, chand->resolver, + &chand->incoming_configuration, + &chand->on_config_changed); + } + cpa = gpr_malloc(sizeof(*cpa)); + cpa->initial_metadata = initial_metadata; + cpa->connected_subchannel = connected_subchannel; + cpa->on_ready = on_ready; + cpa->elem = elem; + grpc_closure_init(&cpa->closure, continue_picking, cpa); + grpc_closure_list_add(&chand->waiting_for_config_closures, &cpa->closure, 1); + gpr_mu_unlock(&chand->mu_config); + return 0; +} + +/* Constructor for call_data */ +static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, + grpc_call_element_args *args) { + grpc_subchannel_call_holder_init(elem->call_data, cc_pick_subchannel, elem, + args->call_stack); +} + +/* Destructor for call_data */ +static void destroy_call_elem(grpc_exec_ctx *exec_ctx, + grpc_call_element *elem) { + grpc_subchannel_call_holder_destroy(exec_ctx, elem->call_data); +} + +/* Constructor for channel_data */ +static void init_channel_elem(grpc_exec_ctx *exec_ctx, + grpc_channel_element *elem, + grpc_channel_element_args *args) { + channel_data *chand = elem->channel_data; + + memset(chand, 0, sizeof(*chand)); + + GPR_ASSERT(args->is_last); + GPR_ASSERT(elem->filter == &grpc_client_channel_filter); + + gpr_mu_init(&chand->mu_config); + grpc_closure_init(&chand->on_config_changed, cc_on_config_changed, chand); + chand->owning_stack = args->channel_stack; + + grpc_connectivity_state_init(&chand->state_tracker, GRPC_CHANNEL_IDLE, + "client_channel"); + chand->interested_parties = grpc_pollset_set_create(); +} + +/* Destructor for channel_data */ +static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, + grpc_channel_element *elem) { + channel_data *chand = elem->channel_data; + + if (chand->resolver != NULL) { + grpc_resolver_shutdown(exec_ctx, chand->resolver); + GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); + } + if (chand->lb_policy != NULL) { + 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"); + } + grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker); + grpc_pollset_set_destroy(chand->interested_parties); + gpr_mu_destroy(&chand->mu_config); +} + +static void cc_set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, + grpc_pollset *pollset) { + call_data *calld = elem->call_data; + calld->pollset = pollset; +} + +const grpc_channel_filter grpc_client_channel_filter = { + cc_start_transport_stream_op, + cc_start_transport_op, + sizeof(call_data), + init_call_elem, + cc_set_pollset, + destroy_call_elem, + sizeof(channel_data), + init_channel_elem, + destroy_channel_elem, + cc_get_peer, + "client-channel", +}; + +void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx, + grpc_channel_stack *channel_stack, + grpc_resolver *resolver) { + /* post construction initialization: set the transport setup pointer */ + grpc_channel_element *elem = grpc_channel_stack_last_element(channel_stack); + channel_data *chand = elem->channel_data; + gpr_mu_lock(&chand->mu_config); + GPR_ASSERT(!chand->resolver); + chand->resolver = resolver; + GRPC_RESOLVER_REF(resolver, "channel"); + if (!grpc_closure_list_empty(chand->waiting_for_config_closures) || + chand->exit_idle_when_lb_policy_arrives) { + chand->started_resolving = 1; + GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); + grpc_resolver_next(exec_ctx, resolver, &chand->incoming_configuration, + &chand->on_config_changed); + } + gpr_mu_unlock(&chand->mu_config); +} + +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 = elem->channel_data; + grpc_connectivity_state out; + gpr_mu_lock(&chand->mu_config); + out = grpc_connectivity_state_check(&chand->state_tracker); + if (out == GRPC_CHANNEL_IDLE && try_to_connect) { + if (chand->lb_policy != NULL) { + grpc_lb_policy_exit_idle(exec_ctx, chand->lb_policy); + } else { + chand->exit_idle_when_lb_policy_arrives = 1; + if (!chand->started_resolving && chand->resolver != NULL) { + GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); + chand->started_resolving = 1; + grpc_resolver_next(exec_ctx, chand->resolver, + &chand->incoming_configuration, + &chand->on_config_changed); + } + } + } + gpr_mu_unlock(&chand->mu_config); + return out; +} + +typedef struct { + channel_data *chand; + grpc_pollset *pollset; + grpc_closure *on_complete; + grpc_closure my_closure; +} external_connectivity_watcher; + +static void on_external_watch_complete(grpc_exec_ctx *exec_ctx, void *arg, + bool iomgr_success) { + external_connectivity_watcher *w = arg; + grpc_closure *follow_up = w->on_complete; + grpc_pollset_set_del_pollset(exec_ctx, w->chand->interested_parties, + w->pollset); + GRPC_CHANNEL_STACK_UNREF(exec_ctx, w->chand->owning_stack, + "external_connectivity_watcher"); + gpr_free(w); + follow_up->cb(exec_ctx, follow_up->cb_arg, iomgr_success); +} + +void grpc_client_channel_watch_connectivity_state( + grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, + grpc_connectivity_state *state, grpc_closure *on_complete) { + channel_data *chand = elem->channel_data; + external_connectivity_watcher *w = gpr_malloc(sizeof(*w)); + w->chand = chand; + w->pollset = pollset; + w->on_complete = on_complete; + grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties, pollset); + grpc_closure_init(&w->my_closure, on_external_watch_complete, w); + GRPC_CHANNEL_STACK_REF(w->chand->owning_stack, + "external_connectivity_watcher"); + gpr_mu_lock(&chand->mu_config); + grpc_connectivity_state_notify_on_state_change( + exec_ctx, &chand->state_tracker, state, &w->my_closure); + gpr_mu_unlock(&chand->mu_config); +} diff --git a/src/core/ext/client_config/client_channel.h b/src/core/ext/client_config/client_channel.h new file mode 100644 index 0000000000..0f5b676e45 --- /dev/null +++ b/src/core/ext/client_config/client_channel.h @@ -0,0 +1,63 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H +#define GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H + +#include "src/core/lib/channel/channel_stack.h" +#include "src/core/ext/client_config/resolver.h" + +/* A client channel is a channel that begins disconnected, and can connect + to some endpoint on demand. If that endpoint disconnects, it will be + connected to again later. + + Calls on a disconnected client channel are queued until a connection is + established. */ + +extern const grpc_channel_filter grpc_client_channel_filter; + +/* post-construction initializer to let the client channel know which + transport setup it should cancel upon destruction, or initiate when it needs + a connection */ +void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx, + grpc_channel_stack *channel_stack, + grpc_resolver *resolver); + +grpc_connectivity_state grpc_client_channel_check_connectivity_state( + grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect); + +void grpc_client_channel_watch_connectivity_state( + grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, + grpc_connectivity_state *state, grpc_closure *on_complete); + +#endif /* GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H */ diff --git a/src/core/ext/client_config/client_config.c b/src/core/ext/client_config/client_config.c new file mode 100644 index 0000000000..f9b8e68698 --- /dev/null +++ b/src/core/ext/client_config/client_config.c @@ -0,0 +1,74 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/client_config.h" + +#include + +#include + +struct grpc_client_config { + gpr_refcount refs; + grpc_lb_policy *lb_policy; +}; + +grpc_client_config *grpc_client_config_create() { + grpc_client_config *c = gpr_malloc(sizeof(*c)); + memset(c, 0, sizeof(*c)); + gpr_ref_init(&c->refs, 1); + return c; +} + +void grpc_client_config_ref(grpc_client_config *c) { gpr_ref(&c->refs); } + +void grpc_client_config_unref(grpc_exec_ctx *exec_ctx, grpc_client_config *c) { + if (gpr_unref(&c->refs)) { + if (c->lb_policy != NULL) { + GRPC_LB_POLICY_UNREF(exec_ctx, c->lb_policy, "client_config"); + } + gpr_free(c); + } +} + +void grpc_client_config_set_lb_policy(grpc_client_config *c, + grpc_lb_policy *lb_policy) { + GPR_ASSERT(c->lb_policy == NULL); + if (lb_policy) { + GRPC_LB_POLICY_REF(lb_policy, "client_config"); + } + c->lb_policy = lb_policy; +} + +grpc_lb_policy *grpc_client_config_get_lb_policy(grpc_client_config *c) { + return c->lb_policy; +} diff --git a/src/core/ext/client_config/client_config.h b/src/core/ext/client_config/client_config.h new file mode 100644 index 0000000000..2742ea2895 --- /dev/null +++ b/src/core/ext/client_config/client_config.h @@ -0,0 +1,53 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H + +#include "src/core/ext/client_config/lb_policy.h" + +/** Total configuration for a client. Provided, and updated, by + grpc_resolver */ +typedef struct grpc_client_config grpc_client_config; + +grpc_client_config *grpc_client_config_create(); +void grpc_client_config_ref(grpc_client_config *client_config); +void grpc_client_config_unref(grpc_exec_ctx *exec_ctx, + grpc_client_config *client_config); + +void grpc_client_config_set_lb_policy(grpc_client_config *client_config, + grpc_lb_policy *lb_policy); +grpc_lb_policy *grpc_client_config_get_lb_policy( + grpc_client_config *client_config); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H */ diff --git a/src/core/ext/client_config/connector.c b/src/core/ext/client_config/connector.c new file mode 100644 index 0000000000..5b629ed5fb --- /dev/null +++ b/src/core/ext/client_config/connector.c @@ -0,0 +1,55 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/connector.h" + +grpc_connector* grpc_connector_ref(grpc_connector* connector) { + connector->vtable->ref(connector); + return connector; +} + +void grpc_connector_unref(grpc_exec_ctx* exec_ctx, grpc_connector* connector) { + connector->vtable->unref(exec_ctx, connector); +} + +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) { + connector->vtable->connect(exec_ctx, connector, in_args, out_args, notify); +} + +void grpc_connector_shutdown(grpc_exec_ctx* exec_ctx, + grpc_connector* connector) { + connector->vtable->shutdown(exec_ctx, connector); +} diff --git a/src/core/ext/client_config/connector.h b/src/core/ext/client_config/connector.h new file mode 100644 index 0000000000..39870a261c --- /dev/null +++ b/src/core/ext/client_config/connector.h @@ -0,0 +1,92 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H + +#include "src/core/lib/channel/channel_stack.h" +#include "src/core/lib/iomgr/sockaddr.h" +#include "src/core/lib/transport/transport.h" + +typedef struct grpc_connector grpc_connector; +typedef struct grpc_connector_vtable grpc_connector_vtable; + +struct grpc_connector { + const grpc_connector_vtable *vtable; +}; + +typedef struct { + /** set of pollsets interested in this connection */ + grpc_pollset_set *interested_parties; + /** address to connect to */ + const struct sockaddr *addr; + size_t addr_len; + /** initial connect string to send */ + gpr_slice initial_connect_string; + /** deadline for connection */ + gpr_timespec deadline; + /** channel arguments (to be passed to transport) */ + const grpc_channel_args *channel_args; +} grpc_connect_in_args; + +typedef struct { + /** the connected transport */ + grpc_transport *transport; + + /** channel arguments (to be passed to the filters) */ + const 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); + /** Implementation of grpc_connector_shutdown */ + void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_connector *connector); + /** 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); +}; + +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); +/** Cancel any pending connection */ +void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, + grpc_connector *connector); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H */ diff --git a/src/core/ext/client_config/default_initial_connect_string.c b/src/core/ext/client_config/default_initial_connect_string.c new file mode 100644 index 0000000000..a70da4a84a --- /dev/null +++ b/src/core/ext/client_config/default_initial_connect_string.c @@ -0,0 +1,39 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include +#include "src/core/lib/iomgr/sockaddr.h" + +void grpc_set_default_initial_connect_string(struct sockaddr **addr, + size_t *addr_len, + gpr_slice *initial_str) {} diff --git a/src/core/ext/client_config/initial_connect_string.c b/src/core/ext/client_config/initial_connect_string.c new file mode 100644 index 0000000000..41580d2106 --- /dev/null +++ b/src/core/ext/client_config/initial_connect_string.c @@ -0,0 +1,53 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/initial_connect_string.h" + +#include + +extern void grpc_set_default_initial_connect_string(struct sockaddr **addr, + size_t *addr_len, + gpr_slice *initial_str); + +static grpc_set_initial_connect_string_func g_set_initial_connect_string_func = + grpc_set_default_initial_connect_string; + +void grpc_test_set_initial_connect_string_function( + grpc_set_initial_connect_string_func func) { + g_set_initial_connect_string_func = func; +} + +void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len, + gpr_slice *initial_str) { + g_set_initial_connect_string_func(addr, addr_len, initial_str); +} diff --git a/src/core/ext/client_config/initial_connect_string.h b/src/core/ext/client_config/initial_connect_string.h new file mode 100644 index 0000000000..51302768c6 --- /dev/null +++ b/src/core/ext/client_config/initial_connect_string.h @@ -0,0 +1,50 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H + +#include +#include "src/core/lib/iomgr/sockaddr.h" + +typedef void (*grpc_set_initial_connect_string_func)(struct sockaddr **addr, + size_t *addr_len, + gpr_slice *initial_str); +void grpc_test_set_initial_connect_string_function( + grpc_set_initial_connect_string_func func); + +/** Set a string to be sent once connected. Optionally reset addr. */ +void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len, + gpr_slice *connect_string); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */ diff --git a/src/core/ext/client_config/lb_policy.c b/src/core/ext/client_config/lb_policy.c new file mode 100644 index 0000000000..72c1cf250c --- /dev/null +++ b/src/core/ext/client_config/lb_policy.c @@ -0,0 +1,134 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/lb_policy.h" + +#define WEAK_REF_BITS 16 + +void grpc_lb_policy_init(grpc_lb_policy *policy, + const grpc_lb_policy_vtable *vtable) { + policy->vtable = vtable; + gpr_atm_no_barrier_store(&policy->ref_pair, 1 << WEAK_REF_BITS); + policy->interested_parties = grpc_pollset_set_create(); +} + +#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG +#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_FUNC_PASS_ARGS(new_reason) , file, line, new_reason +#define REF_MUTATE_PASS_ARGS(purpose) , file, line, reason, purpose +#else +#define REF_FUNC_EXTRA_ARGS +#define REF_MUTATE_EXTRA_ARGS +#define REF_FUNC_PASS_ARGS(new_reason) +#define REF_MUTATE_PASS_ARGS(x) +#endif + +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); +#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, + "LB_POLICY: %p % 12s 0x%08x -> 0x%08x [%s]", c, purpose, old_val, + old_val + delta, reason); +#endif + return old_val; +} + +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")); +} + +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) { + policy->vtable->shutdown(exec_ctx, policy); + } + 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) { + 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) { + 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(policy->interested_parties); + policy->vtable->destroy(exec_ctx, policy); + } +} + +int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_pollset *pollset, + grpc_metadata_batch *initial_metadata, + grpc_connected_subchannel **target, + grpc_closure *on_complete) { + return policy->vtable->pick(exec_ctx, policy, pollset, initial_metadata, + target, on_complete); +} + +void grpc_lb_policy_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_connected_subchannel **target) { + policy->vtable->cancel_pick(exec_ctx, policy, target); +} + +void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) { + policy->vtable->exit_idle(exec_ctx, policy); +} + +void grpc_lb_policy_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_closure *closure) { + policy->vtable->ping_one(exec_ctx, policy, closure); +} + +void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, + grpc_lb_policy *policy, + grpc_connectivity_state *state, + grpc_closure *closure) { + policy->vtable->notify_on_state_change(exec_ctx, policy, state, closure); +} + +grpc_connectivity_state grpc_lb_policy_check_connectivity( + grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) { + return policy->vtable->check_connectivity(exec_ctx, policy); +} diff --git a/src/core/ext/client_config/lb_policy.h b/src/core/ext/client_config/lb_policy.h new file mode 100644 index 0000000000..8779cf06ac --- /dev/null +++ b/src/core/ext/client_config/lb_policy.h @@ -0,0 +1,144 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H + +#include "src/core/ext/client_config/subchannel.h" +#include "src/core/lib/transport/connectivity_state.h" + +/** A load balancing policy: specified by a vtable and a struct (which + is expected to be extended to contain some parameters) */ +typedef struct grpc_lb_policy grpc_lb_policy; +typedef struct grpc_lb_policy_vtable grpc_lb_policy_vtable; + +typedef void (*grpc_lb_completion)(void *cb_arg, grpc_subchannel *subchannel, + grpc_status_code status, const char *errmsg); + +struct grpc_lb_policy { + const grpc_lb_policy_vtable *vtable; + gpr_atm ref_pair; + /* owned pointer to interested parties in load balancing decisions */ + grpc_pollset_set *interested_parties; +}; + +struct grpc_lb_policy_vtable { + void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + + void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + + /** implement grpc_lb_policy_pick */ + int (*pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_pollset *pollset, grpc_metadata_batch *initial_metadata, + grpc_connected_subchannel **target, grpc_closure *on_complete); + void (*cancel_pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_connected_subchannel **target); + + void (*ping_one)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_closure *closure); + + /** try to enter a READY connectivity state */ + void (*exit_idle)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + + /** check the current connectivity of the lb_policy */ + grpc_connectivity_state (*check_connectivity)(grpc_exec_ctx *exec_ctx, + grpc_lb_policy *policy); + + /** call notify when the connectivity state of a channel changes from *state. + Updates *state with the new state of the policy */ + void (*notify_on_state_change)(grpc_exec_ctx *exec_ctx, + grpc_lb_policy *policy, + grpc_connectivity_state *state, + grpc_closure *closure); +}; + +/*#define GRPC_LB_POLICY_REFCOUNT_DEBUG*/ +#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG +#define GRPC_LB_POLICY_REF(p, r) \ + grpc_lb_policy_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_LB_POLICY_UNREF(exec_ctx, p, r) \ + grpc_lb_policy_unref((exec_ctx), (p), __FILE__, __LINE__, (r)) +#define GRPC_LB_POLICY_WEAK_REF(p, r) \ + 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); +#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); +#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); + +/** Given initial metadata in \a initial_metadata, find an appropriate + target for this rpc, and 'return' it by calling \a on_complete after setting + \a target. + Picking can be asynchronous. Any IO should be done under \a pollset. */ +int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_pollset *pollset, + grpc_metadata_batch *initial_metadata, + grpc_connected_subchannel **target, + grpc_closure *on_complete); + +void grpc_lb_policy_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_closure *closure); + +void grpc_lb_policy_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, + grpc_connected_subchannel **target); + +void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + +void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, + grpc_lb_policy *policy, + grpc_connectivity_state *state, + grpc_closure *closure); + +grpc_connectivity_state grpc_lb_policy_check_connectivity( + grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H */ diff --git a/src/core/ext/client_config/lb_policy_factory.c b/src/core/ext/client_config/lb_policy_factory.c new file mode 100644 index 0000000000..70e46ef3cf --- /dev/null +++ b/src/core/ext/client_config/lb_policy_factory.c @@ -0,0 +1,49 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/lb_policy_factory.h" + +void grpc_lb_policy_factory_ref(grpc_lb_policy_factory* factory) { + factory->vtable->ref(factory); +} + +void grpc_lb_policy_factory_unref(grpc_lb_policy_factory* factory) { + factory->vtable->unref(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; + return factory->vtable->create_lb_policy(exec_ctx, factory, args); +} diff --git a/src/core/ext/client_config/lb_policy_factory.h b/src/core/ext/client_config/lb_policy_factory.h new file mode 100644 index 0000000000..7cda216502 --- /dev/null +++ b/src/core/ext/client_config/lb_policy_factory.h @@ -0,0 +1,78 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H + +#include "src/core/ext/client_config/lb_policy.h" +#include "src/core/ext/client_config/subchannel_factory.h" +#include "src/core/lib/iomgr/resolve_address.h" + +#include "src/core/lib/iomgr/exec_ctx.h" + +typedef struct grpc_lb_policy_factory grpc_lb_policy_factory; +typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable; + +/** grpc_lb_policy provides grpc_client_config objects to grpc_channel + objects */ +struct grpc_lb_policy_factory { + const grpc_lb_policy_factory_vtable *vtable; +}; + +typedef struct grpc_lb_policy_args { + grpc_resolved_addresses *addresses; + grpc_subchannel_factory *subchannel_factory; +} grpc_lb_policy_args; + +struct grpc_lb_policy_factory_vtable { + 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); + + /** Name for the LB policy this factory implements */ + 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); + +/** 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); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H */ diff --git a/src/core/ext/client_config/lb_policy_registry.c b/src/core/ext/client_config/lb_policy_registry.c new file mode 100644 index 0000000000..a23643ecc6 --- /dev/null +++ b/src/core/ext/client_config/lb_policy_registry.c @@ -0,0 +1,83 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/lb_policy_registry.h" + +#include + +#define MAX_POLICIES 10 + +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; } + +void grpc_lb_policy_registry_shutdown(void) { + int i; + for (i = 0; i < g_number_of_lb_policies; i++) { + grpc_lb_policy_factory_unref(g_all_of_the_lb_policies[i]); + } +} + +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 != strcmp(factory->vtable->name, + g_all_of_the_lb_policies[i]->vtable->name)); + } + GPR_ASSERT(g_number_of_lb_policies != MAX_POLICIES); + grpc_lb_policy_factory_ref(factory); + g_all_of_the_lb_policies[g_number_of_lb_policies++] = factory; +} + +static grpc_lb_policy_factory *lookup_factory(const char *name) { + int i; + + if (name == NULL) return NULL; + + for (i = 0; i < g_number_of_lb_policies; i++) { + if (0 == strcmp(name, g_all_of_the_lb_policies[i]->vtable->name)) { + return g_all_of_the_lb_policies[i]; + } + } + + return NULL; +} + +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/client_config/lb_policy_registry.h b/src/core/ext/client_config/lb_policy_registry.h new file mode 100644 index 0000000000..f68dea3d86 --- /dev/null +++ b/src/core/ext/client_config/lb_policy_registry.h @@ -0,0 +1,55 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H + +#include "src/core/ext/client_config/lb_policy_factory.h" +#include "src/core/lib/iomgr/exec_ctx.h" + +/** Initialize the registry and set \a default_factory as the factory to be + * returned when no name is provided in a lookup */ +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); + +/** 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); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */ diff --git a/src/core/ext/client_config/resolver.c b/src/core/ext/client_config/resolver.c new file mode 100644 index 0000000000..eb004455bd --- /dev/null +++ b/src/core/ext/client_config/resolver.c @@ -0,0 +1,82 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/resolver.h" + +void grpc_resolver_init(grpc_resolver *resolver, + const grpc_resolver_vtable *vtable) { + resolver->vtable = vtable; + gpr_ref_init(&resolver->refs, 1); +} + +#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG +void grpc_resolver_ref(grpc_resolver *resolver, grpc_closure_list *closure_list, + const char *file, int line, const char *reason) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p ref %d -> %d %s", + resolver, (int)resolver->refs.count, (int)resolver->refs.count + 1, + reason); +#else +void grpc_resolver_ref(grpc_resolver *resolver) { +#endif + gpr_ref(&resolver->refs); +} + +#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG +void grpc_resolver_unref(grpc_resolver *resolver, + grpc_closure_list *closure_list, const char *file, + int line, const char *reason) { + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p unref %d -> %d %s", + resolver, (int)resolver->refs.count, (int)resolver->refs.count - 1, + reason); +#else +void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) { +#endif + if (gpr_unref(&resolver->refs)) { + resolver->vtable->destroy(exec_ctx, resolver); + } +} + +void grpc_resolver_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) { + resolver->vtable->shutdown(exec_ctx, resolver); +} + +void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx, + grpc_resolver *resolver) { + resolver->vtable->channel_saw_error(exec_ctx, resolver); +} + +void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, + grpc_client_config **target_config, + grpc_closure *on_complete) { + resolver->vtable->next(exec_ctx, resolver, target_config, on_complete); +} diff --git a/src/core/ext/client_config/resolver.h b/src/core/ext/client_config/resolver.h new file mode 100644 index 0000000000..226beda85f --- /dev/null +++ b/src/core/ext/client_config/resolver.h @@ -0,0 +1,94 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H + +#include "src/core/ext/client_config/client_config.h" +#include "src/core/ext/client_config/subchannel.h" +#include "src/core/lib/iomgr/iomgr.h" + +typedef struct grpc_resolver grpc_resolver; +typedef struct grpc_resolver_vtable grpc_resolver_vtable; + +/** grpc_resolver provides grpc_client_config objects to grpc_channel + objects */ +struct grpc_resolver { + const grpc_resolver_vtable *vtable; + gpr_refcount refs; +}; + +struct grpc_resolver_vtable { + void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); + void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); + void (*channel_saw_error)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); + void (*next)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, + grpc_client_config **target_config, grpc_closure *on_complete); +}; + +#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG +#define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_RESOLVER_UNREF(cl, p, r) \ + grpc_resolver_unref((cl), (p), __FILE__, __LINE__, (r)) +void grpc_resolver_ref(grpc_resolver *policy, const char *file, int line, + const char *reason); +void grpc_resolver_unref(grpc_resolver *policy, grpc_closure_list *closure_list, + const char *file, int line, const char *reason); +#else +#define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p)) +#define GRPC_RESOLVER_UNREF(cl, p, r) grpc_resolver_unref((cl), (p)) +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); + +void grpc_resolver_shutdown(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. */ +void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx, + grpc_resolver *resolver); + +/** Get the next client config. Called by the channel to fetch a new + configuration. Expected to set *target_config with a new configuration, + and then schedule on_complete for execution. + + If resolution is fatally broken, set *target_config to NULL and + schedule on_complete. */ +void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, + grpc_client_config **target_config, + grpc_closure *on_complete); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H */ diff --git a/src/core/ext/client_config/resolver_factory.c b/src/core/ext/client_config/resolver_factory.c new file mode 100644 index 0000000000..67832dcf59 --- /dev/null +++ b/src/core/ext/client_config/resolver_factory.c @@ -0,0 +1,55 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/resolver_factory.h" + +void grpc_resolver_factory_ref(grpc_resolver_factory* factory) { + factory->vtable->ref(factory); +} + +void grpc_resolver_factory_unref(grpc_resolver_factory* factory) { + factory->vtable->unref(factory); +} + +/** Create a resolver instance for a name */ +grpc_resolver* grpc_resolver_factory_create_resolver( + grpc_resolver_factory* factory, grpc_resolver_args* args) { + if (factory == NULL) return NULL; + return factory->vtable->create_resolver(factory, args); +} + +char* grpc_resolver_factory_get_default_authority( + grpc_resolver_factory* factory, grpc_uri* uri) { + if (factory == NULL) return NULL; + return factory->vtable->get_default_authority(factory, uri); +} diff --git a/src/core/ext/client_config/resolver_factory.h b/src/core/ext/client_config/resolver_factory.h new file mode 100644 index 0000000000..e582166278 --- /dev/null +++ b/src/core/ext/client_config/resolver_factory.h @@ -0,0 +1,82 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H + +#include "src/core/ext/client_config/resolver.h" +#include "src/core/ext/client_config/subchannel_factory.h" +#include "src/core/ext/client_config/uri_parser.h" + +typedef struct grpc_resolver_factory grpc_resolver_factory; +typedef struct grpc_resolver_factory_vtable grpc_resolver_factory_vtable; + +/** grpc_resolver provides grpc_client_config objects to grpc_channel + objects */ +struct grpc_resolver_factory { + const grpc_resolver_factory_vtable *vtable; +}; + +typedef struct grpc_resolver_args { + grpc_uri *uri; + grpc_subchannel_factory *subchannel_factory; +} grpc_resolver_args; + +struct grpc_resolver_factory_vtable { + void (*ref)(grpc_resolver_factory *factory); + void (*unref)(grpc_resolver_factory *factory); + + /** Implementation of grpc_resolver_factory_create_resolver */ + grpc_resolver *(*create_resolver)(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); + + /** URI scheme that this factory implements */ + const char *scheme; +}; + +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_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); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H */ diff --git a/src/core/ext/client_config/resolver_registry.c b/src/core/ext/client_config/resolver_registry.c new file mode 100644 index 0000000000..63609e8234 --- /dev/null +++ b/src/core/ext/client_config/resolver_registry.c @@ -0,0 +1,145 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/resolver_registry.h" + +#include + +#include +#include +#include + +#define MAX_RESOLVERS 10 + +static grpc_resolver_factory *g_all_of_the_resolvers[MAX_RESOLVERS]; +static int g_number_of_resolvers = 0; + +static char *g_default_resolver_prefix; + +void grpc_resolver_registry_init(const char *default_resolver_prefix) { + g_number_of_resolvers = 0; + g_default_resolver_prefix = gpr_strdup(default_resolver_prefix); +} + +void grpc_resolver_registry_shutdown(void) { + int i; + for (i = 0; i < g_number_of_resolvers; i++) { + grpc_resolver_factory_unref(g_all_of_the_resolvers[i]); + } + gpr_free(g_default_resolver_prefix); +} + +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, + g_all_of_the_resolvers[i]->vtable->scheme)); + } + GPR_ASSERT(g_number_of_resolvers != MAX_RESOLVERS); + grpc_resolver_factory_ref(factory); + g_all_of_the_resolvers[g_number_of_resolvers++] = factory; +} + +static grpc_resolver_factory *lookup_factory(const char *name) { + int i; + + for (i = 0; i < g_number_of_resolvers; i++) { + if (0 == strcmp(name, g_all_of_the_resolvers[i]->vtable->scheme)) { + return g_all_of_the_resolvers[i]; + } + } + + return NULL; +} + +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; + return lookup_factory(uri->scheme); +} + +static grpc_resolver_factory *resolve_factory(const char *target, + grpc_uri **uri) { + char *tmp; + grpc_resolver_factory *factory = NULL; + + GPR_ASSERT(uri != NULL); + *uri = grpc_uri_parse(target, 1); + factory = lookup_factory_by_uri(*uri); + if (factory == NULL) { + if (g_default_resolver_prefix != NULL) { + grpc_uri_destroy(*uri); + gpr_asprintf(&tmp, "%s%s", g_default_resolver_prefix, target); + *uri = grpc_uri_parse(tmp, 1); + factory = lookup_factory_by_uri(*uri); + if (factory == NULL) { + grpc_uri_destroy(grpc_uri_parse(target, 0)); + grpc_uri_destroy(grpc_uri_parse(tmp, 0)); + gpr_log(GPR_ERROR, "don't know how to resolve '%s' or '%s'", target, + tmp); + } + gpr_free(tmp); + } else { + grpc_uri_destroy(grpc_uri_parse(target, 0)); + gpr_log(GPR_ERROR, "don't know how to resolve '%s'", target); + } + } + return factory; +} + +grpc_resolver *grpc_resolver_create( + const char *target, grpc_subchannel_factory *subchannel_factory) { + grpc_uri *uri = NULL; + grpc_resolver_factory *factory = resolve_factory(target, &uri); + grpc_resolver *resolver; + grpc_resolver_args args; + memset(&args, 0, sizeof(args)); + args.uri = uri; + args.subchannel_factory = subchannel_factory; + resolver = grpc_resolver_factory_create_resolver(factory, &args); + grpc_uri_destroy(uri); + return resolver; +} + +char *grpc_get_default_authority(const char *target) { + grpc_uri *uri = NULL; + grpc_resolver_factory *factory = resolve_factory(target, &uri); + char *authority = grpc_resolver_factory_get_default_authority(factory, uri); + grpc_uri_destroy(uri); + return authority; +} diff --git a/src/core/ext/client_config/resolver_registry.h b/src/core/ext/client_config/resolver_registry.h new file mode 100644 index 0000000000..2de34b32ac --- /dev/null +++ b/src/core/ext/client_config/resolver_registry.h @@ -0,0 +1,69 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H + +#include "src/core/ext/client_config/resolver_factory.h" + +void grpc_resolver_registry_init(const char *default_prefix); +void grpc_resolver_registry_shutdown(void); + +/** 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); + +/** Create a resolver given \a target. + First tries to parse \a target as a URI. If this succeeds, tries + to locate a registered resolver factory based on the URI scheme. + If parsing or location fails, prefixes default_prefix from + grpc_resolver_registry_init to target, and tries again (if default_prefix + was not NULL). + If a resolver factory was found, use it to instantiate a resolver and + return it. + If a resolver factory was not found, return NULL. */ +grpc_resolver *grpc_resolver_create( + const char *target, grpc_subchannel_factory *subchannel_factory); + +/** 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); + +/** 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(const char *target); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H */ diff --git a/src/core/ext/client_config/subchannel.c b/src/core/ext/client_config/subchannel.c new file mode 100644 index 0000000000..452513427a --- /dev/null +++ b/src/core/ext/client_config/subchannel.c @@ -0,0 +1,678 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/subchannel.h" + +#include + +#include +#include + +#include "src/core/lib/channel/channel_args.h" +#include "src/core/ext/client_config/client_channel.h" +#include "src/core/lib/channel/connected_channel.h" +#include "src/core/ext/client_config/initial_connect_string.h" +#include "src/core/ext/client_config/subchannel_index.h" +#include "src/core/lib/iomgr/timer.h" +#include "src/core/lib/profiling/timers.h" +#include "src/core/lib/support/backoff.h" +#include "src/core/lib/surface/channel.h" +#include "src/core/lib/surface/channel_init.h" +#include "src/core/lib/transport/connectivity_state.h" + +#define INTERNAL_REF_BITS 16 +#define STRONG_REF_MASK (~(gpr_atm)((1 << INTERNAL_REF_BITS) - 1)) + +#define GRPC_SUBCHANNEL_MIN_CONNECT_TIMEOUT_SECONDS 20 +#define GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS 1 +#define GRPC_SUBCHANNEL_RECONNECT_BACKOFF_MULTIPLIER 1.6 +#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( \ + &(subchannel)->connected_subchannel))) + +typedef struct { + grpc_closure closure; + 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_closure closure; + struct external_state_watcher *next; + struct external_state_watcher *prev; +} external_state_watcher; + +struct grpc_subchannel { + grpc_connector *connector; + + /** refcount + - lower INTERNAL_REF_BITS bits are for internal references: + these do not keep the subchannel open. + - upper remaining bits are for public references: these do + keep the subchannel open */ + gpr_atm ref_pair; + + /** non-transport related channel filters */ + const grpc_channel_filter **filters; + size_t num_filters; + /** channel arguments */ + grpc_channel_args *args; + /** address to connect to */ + struct sockaddr *addr; + size_t addr_len; + + grpc_subchannel_key *key; + + /** initial string to send to peer */ + gpr_slice initial_connect_string; + + /** set during connection */ + grpc_connect_out_args connecting_result; + + /** callback for connection finishing */ + grpc_closure connected; + + /** pollset_set tracking who's interested in a connection + being setup */ + grpc_pollset_set *pollset_set; + + /** active connection, or null; of type grpc_connected_subchannel */ + gpr_atm connected_subchannel; + + /** mutex protecting remaining elements */ + gpr_mu mu; + + /** have we seen a disconnection? */ + int disconnected; + /** are we connecting */ + int connecting; + /** connectivity state tracking */ + grpc_connectivity_state_tracker state_tracker; + + external_state_watcher root_external_state_watcher; + + /** next connect attempt time */ + gpr_timespec next_attempt; + /** backoff state */ + gpr_backoff backoff_state; + /** do we have an active alarm? */ + int have_alarm; + /** our alarm */ + grpc_timer alarm; + /** current random value */ + uint32_t random; +}; + +struct grpc_subchannel_call { + grpc_connected_subchannel *connection; +}; + +#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) + +static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *subchannel, + bool iomgr_success); + +#ifdef GRPC_STREAM_REFCOUNT_DEBUG +#define REF_REASON reason +#define REF_LOG(name, p) \ + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p ref %d -> %d %s", \ + (name), (p), (p)->refs.count, (p)->refs.count + 1, reason) +#define UNREF_LOG(name, p) \ + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p unref %d -> %d %s", \ + (name), (p), (p)->refs.count, (p)->refs.count - 1, reason) +#define REF_MUTATE_EXTRA_ARGS \ + GRPC_SUBCHANNEL_REF_EXTRA_ARGS, const char *purpose +#define REF_MUTATE_PURPOSE(x) , file, line, reason, x +#else +#define REF_REASON "" +#define REF_LOG(name, p) \ + do { \ + } while (0) +#define UNREF_LOG(name, p) \ + do { \ + } while (0) +#define REF_MUTATE_EXTRA_ARGS +#define REF_MUTATE_PURPOSE(x) +#endif + +/* + * connection implementation + */ + +static void connection_destroy(grpc_exec_ctx *exec_ctx, void *arg, + bool success) { + grpc_connected_subchannel *c = arg; + grpc_channel_stack_destroy(exec_ctx, CHANNEL_STACK_FROM_CONNECTION(c)); + gpr_free(c); +} + +void grpc_connected_subchannel_ref( + grpc_connected_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { + GRPC_CHANNEL_STACK_REF(CHANNEL_STACK_FROM_CONNECTION(c), REF_REASON); +} + +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); +} + +/* + * grpc_subchannel implementation + */ + +static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg, + bool success) { + grpc_subchannel *c = arg; + gpr_free((void *)c->filters); + grpc_channel_args_destroy(c->args); + gpr_free(c->addr); + gpr_slice_unref(c->initial_connect_string); + grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker); + grpc_connector_unref(exec_ctx, c->connector); + grpc_pollset_set_destroy(c->pollset_set); + grpc_subchannel_key_destroy(exec_ctx, c->key); + gpr_free(c); +} + +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); +#ifdef GRPC_STREAM_REFCOUNT_DEBUG + gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, + "SUBCHANNEL: %p % 12s 0x%08x -> 0x%08x [%s]", c, purpose, old_val, + old_val + delta, reason); +#endif + return old_val; +} + +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")); + GPR_ASSERT((old_refs & STRONG_REF_MASK) != 0); + return c; +} + +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; + for (;;) { + gpr_atm old_refs = gpr_atm_acq_load(&c->ref_pair); + if (old_refs >= (1 << INTERNAL_REF_BITS)) { + gpr_atm new_refs = old_refs + (1 << INTERNAL_REF_BITS); + if (gpr_atm_rel_cas(&c->ref_pair, old_refs, new_refs)) { + return c; + } + } else { + return NULL; + } + } +} + +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); + c->disconnected = 1; + grpc_connector_shutdown(exec_ctx, c->connector); + con = GET_CONNECTED_SUBCHANNEL(c, no_barrier); + if (con != NULL) { + GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, con, "connection"); + gpr_atm_no_barrier_store(&c->connected_subchannel, 0xdeadbeef); + } + gpr_mu_unlock(&c->mu); +} + +void grpc_subchannel_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 - (gpr_atm)(1 << INTERNAL_REF_BITS), + 1 REF_MUTATE_PURPOSE("STRONG_UNREF")); + if ((old_refs & STRONG_REF_MASK) == (1 << INTERNAL_REF_BITS)) { + disconnect(exec_ctx, c); + } + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "strong-unref"); +} + +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_exec_ctx_enqueue(exec_ctx, grpc_closure_create(subchannel_destroy, c), + true, NULL); + } +} + +static uint32_t random_seed() { + return (uint32_t)(gpr_time_to_millis(gpr_now(GPR_CLOCK_MONOTONIC))); +} + +grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, + grpc_connector *connector, + grpc_subchannel_args *args) { + grpc_subchannel_key *key = grpc_subchannel_key_create(connector, args); + grpc_subchannel *c = grpc_subchannel_index_find(exec_ctx, key); + if (c) { + grpc_subchannel_key_destroy(exec_ctx, key); + return c; + } + + c = gpr_malloc(sizeof(*c)); + memset(c, 0, 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 = 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->addr = gpr_malloc(args->addr_len); + memcpy(c->addr, args->addr, args->addr_len); + c->pollset_set = grpc_pollset_set_create(); + c->addr_len = args->addr_len; + grpc_set_initial_connect_string(&c->addr, &c->addr_len, + &c->initial_connect_string); + c->args = grpc_channel_args_copy(args->args); + c->random = random_seed(); + 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); + grpc_connectivity_state_init(&c->state_tracker, GRPC_CHANNEL_IDLE, + "subchannel"); + gpr_backoff_init(&c->backoff_state, + GRPC_SUBCHANNEL_RECONNECT_BACKOFF_MULTIPLIER, + GRPC_SUBCHANNEL_RECONNECT_JITTER, + GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS * 1000, + GRPC_SUBCHANNEL_RECONNECT_MAX_BACKOFF_SECONDS * 1000); + if (c->args) { + for (size_t i = 0; i < c->args->num_args; i++) { + if (0 == strcmp(c->args->args[i].key, + "grpc.testing.fixed_reconnect_backoff")) { + GPR_ASSERT(c->args->args[i].type == GRPC_ARG_INTEGER); + gpr_backoff_init(&c->backoff_state, 1.0, 0.0, + c->args->args[i].value.integer, + c->args->args[i].value.integer); + } + } + } + gpr_mu_init(&c->mu); + + return grpc_subchannel_index_register(exec_ctx, key, c); +} + +static void continue_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { + grpc_connect_in_args args; + + args.interested_parties = c->pollset_set; + args.addr = c->addr; + args.addr_len = c->addr_len; + args.deadline = c->next_attempt; + args.channel_args = c->args; + args.initial_connect_string = c->initial_connect_string; + + grpc_connectivity_state_set(exec_ctx, &c->state_tracker, + GRPC_CHANNEL_CONNECTING, "state_change"); + grpc_connector_connect(exec_ctx, c->connector, &args, &c->connecting_result, + &c->connected); +} + +static void start_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { + c->next_attempt = + gpr_backoff_begin(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); + continue_connect(exec_ctx, c); +} + +grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel *c) { + grpc_connectivity_state state; + gpr_mu_lock(&c->mu); + state = grpc_connectivity_state_check(&c->state_tracker); + gpr_mu_unlock(&c->mu); + return state; +} + +static void on_external_state_watcher_done(grpc_exec_ctx *exec_ctx, void *arg, + bool success) { + external_state_watcher *w = arg; + grpc_closure *follow_up = w->notify; + if (w->pollset_set != NULL) { + grpc_pollset_set_del_pollset_set(exec_ctx, w->subchannel->pollset_set, + w->pollset_set); + } + gpr_mu_lock(&w->subchannel->mu); + w->next->prev = w->prev; + w->prev->next = w->next; + gpr_mu_unlock(&w->subchannel->mu); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, w->subchannel, "external_state_watcher"); + gpr_free(w); + follow_up->cb(exec_ctx, follow_up->cb_arg, success); +} + +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; + + if (state == NULL) { + 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); + } + } + gpr_mu_unlock(&c->mu); + } else { + w = 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); + if (interested_parties != NULL) { + grpc_pollset_set_add_pollset_set(exec_ctx, c->pollset_set, + interested_parties); + } + GRPC_SUBCHANNEL_WEAK_REF(c, "external_state_watcher"); + gpr_mu_lock(&c->mu); + w->next = &c->root_external_state_watcher; + w->prev = w->next->prev; + w->next->prev = w->prev->next = w; + if (grpc_connectivity_state_notify_on_state_change( + exec_ctx, &c->state_tracker, state, &w->closure)) { + c->connecting = 1; + /* released by connection */ + GRPC_SUBCHANNEL_WEAK_REF(c, "connecting"); + start_connect(exec_ctx, c); + } + gpr_mu_unlock(&c->mu); + } +} + +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); + 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, + bool iomgr_success) { + state_watcher *sw = p; + grpc_subchannel *c = sw->subchannel; + gpr_mu *mu = &c->mu; + + gpr_mu_lock(mu); + + /* if we failed just leave this closure */ + if (iomgr_success) { + if (sw->connectivity_state == GRPC_CHANNEL_TRANSIENT_FAILURE) { + /* any errors on a subchannel ==> we're done, create a new one */ + sw->connectivity_state = GRPC_CHANNEL_FATAL_FAILURE; + } + grpc_connectivity_state_set(exec_ctx, &c->state_tracker, + sw->connectivity_state, "reflect_child"); + if (sw->connectivity_state != GRPC_CHANNEL_FATAL_FAILURE) { + grpc_connected_subchannel_notify_on_state_change( + exec_ctx, GET_CONNECTED_SUBCHANNEL(c, no_barrier), NULL, + &sw->connectivity_state, &sw->closure); + GRPC_SUBCHANNEL_WEAK_REF(c, "state_watcher"); + sw = NULL; + } + } + + gpr_mu_unlock(mu); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "state_watcher"); + 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_channel_element *elem; + memset(&op, 0, sizeof(op)); + op.connectivity_state = state; + op.on_connectivity_state_change = closure; + op.bind_pollset_set = interested_parties; + elem = grpc_channel_stack_element(CHANNEL_STACK_FROM_CONNECTION(con), 0); + elem->filter->start_transport_op(exec_ctx, elem, &op); +} + +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) { + 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_channel_element *elem; + memset(&op, 0, sizeof(op)); + 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 void 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 */ + con = grpc_channel_init_create_stack( + exec_ctx, GRPC_CLIENT_SUBCHANNEL, 0, c->connecting_result.channel_args, 1, + connection_destroy, NULL, c->connecting_result.transport); + stk = CHANNEL_STACK_FROM_CONNECTION(con); + memset(&c->connecting_result, 0, sizeof(c->connecting_result)); + + /* initialize state watcher */ + sw_subchannel = 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, + sw_subchannel); + + if (c->disconnected) { + gpr_free(sw_subchannel); + grpc_channel_stack_destroy(exec_ctx, stk); + gpr_free(con); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + return; + } + + /* publish */ + /* TODO(ctiller): this full barrier seems to clear up a TSAN failure. + I'd have expected the rel_cas below to be enough, but + seemingly it's not. + Re-evaluate if we really need this. */ + gpr_atm_full_barrier(); + GPR_ASSERT(gpr_atm_rel_cas(&c->connected_subchannel, 0, (gpr_atm)con)); + c->connecting = 0; + + /* setup subchannel watching connected subchannel for changes; subchannel ref + for connecting is donated + to the state watcher */ + GRPC_SUBCHANNEL_WEAK_REF(c, "state_watcher"); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + grpc_connected_subchannel_notify_on_state_change( + exec_ctx, con, c->pollset_set, &sw_subchannel->connectivity_state, + &sw_subchannel->closure); + + /* signal completion */ + grpc_connectivity_state_set(exec_ctx, &c->state_tracker, GRPC_CHANNEL_READY, + "connected"); +} + +static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, bool iomgr_success) { + grpc_subchannel *c = arg; + gpr_mu_lock(&c->mu); + c->have_alarm = 0; + if (c->disconnected) { + iomgr_success = 0; + } + if (iomgr_success) { + c->next_attempt = + gpr_backoff_step(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); + continue_connect(exec_ctx, c); + gpr_mu_unlock(&c->mu); + } else { + gpr_mu_unlock(&c->mu); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + } +} + +static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, + bool iomgr_success) { + grpc_subchannel *c = arg; + + GRPC_SUBCHANNEL_WEAK_REF(c, "connected"); + gpr_mu_lock(&c->mu); + if (c->connecting_result.transport != NULL) { + publish_transport_locked(exec_ctx, c); + } else if (c->disconnected) { + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); + } else { + gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); + GPR_ASSERT(!c->have_alarm); + c->have_alarm = 1; + grpc_connectivity_state_set(exec_ctx, &c->state_tracker, + GRPC_CHANNEL_TRANSIENT_FAILURE, + "connect_failed"); + grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now); + } + gpr_mu_unlock(&c->mu); + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); +} + +/* + * grpc_subchannel_call implementation + */ + +static void subchannel_call_destroy(grpc_exec_ctx *exec_ctx, void *call, + bool success) { + grpc_subchannel_call *c = call; + GPR_TIMER_BEGIN("grpc_subchannel_call_unref.destroy", 0); + grpc_call_stack_destroy(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c)); + GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, c->connection, "subchannel_call"); + gpr_free(c); + GPR_TIMER_END("grpc_subchannel_call_unref.destroy", 0); +} + +void grpc_subchannel_call_ref( + 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 + GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { + GRPC_CALL_STACK_UNREF(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c), REF_REASON); +} + +char *grpc_subchannel_call_get_peer(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call *call) { + grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); + grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); + return top_elem->filter->get_peer(exec_ctx, top_elem); +} + +void grpc_subchannel_call_process_op(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call *call, + grpc_transport_stream_op *op) { + grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); + grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); + top_elem->filter->start_transport_stream_op(exec_ctx, top_elem, op); +} + +grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel( + grpc_subchannel *c) { + return GET_CONNECTED_SUBCHANNEL(c, acq); +} + +grpc_subchannel_call *grpc_connected_subchannel_create_call( + grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, + grpc_pollset *pollset) { + grpc_channel_stack *chanstk = CHANNEL_STACK_FROM_CONNECTION(con); + grpc_subchannel_call *call = + gpr_malloc(sizeof(grpc_subchannel_call) + chanstk->call_stack_size); + grpc_call_stack *callstk = SUBCHANNEL_CALL_TO_CALL_STACK(call); + call->connection = con; + GRPC_CONNECTED_SUBCHANNEL_REF(con, "subchannel_call"); + grpc_call_stack_init(exec_ctx, chanstk, 1, subchannel_call_destroy, call, + NULL, NULL, callstk); + grpc_call_stack_set_pollset(exec_ctx, callstk, pollset); + return call; +} + +grpc_call_stack *grpc_subchannel_call_get_call_stack( + grpc_subchannel_call *subchannel_call) { + return SUBCHANNEL_CALL_TO_CALL_STACK(subchannel_call); +} diff --git a/src/core/ext/client_config/subchannel.h b/src/core/ext/client_config/subchannel.h new file mode 100644 index 0000000000..71690c23a5 --- /dev/null +++ b/src/core/ext/client_config/subchannel.h @@ -0,0 +1,174 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H + +#include "src/core/lib/channel/channel_stack.h" +#include "src/core/ext/client_config/connector.h" +#include "src/core/lib/transport/connectivity_state.h" + +/** A (sub-)channel that knows how to connect to exactly one target + address. Provides a target for load balancing. */ +typedef struct grpc_subchannel grpc_subchannel; +typedef struct grpc_connected_subchannel grpc_connected_subchannel; +typedef struct grpc_subchannel_call grpc_subchannel_call; +typedef struct grpc_subchannel_args grpc_subchannel_args; + +#ifdef GRPC_STREAM_REFCOUNT_DEBUG +#define GRPC_SUBCHANNEL_REF(p, r) \ + grpc_subchannel_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) \ + grpc_subchannel_ref_from_weak_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_UNREF(cl, p, r) \ + grpc_subchannel_unref((cl), (p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_WEAK_REF(p, r) \ + grpc_subchannel_weak_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_WEAK_UNREF(cl, p, r) \ + grpc_subchannel_weak_unref((cl), (p), __FILE__, __LINE__, (r)) +#define GRPC_CONNECTED_SUBCHANNEL_REF(p, r) \ + grpc_connected_subchannel_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_CONNECTED_SUBCHANNEL_UNREF(cl, p, r) \ + grpc_connected_subchannel_unref((cl), (p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_CALL_REF(p, r) \ + grpc_subchannel_call_ref((p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_CALL_UNREF(cl, p, r) \ + grpc_subchannel_call_unref((cl), (p), __FILE__, __LINE__, (r)) +#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS \ + , const char *file, int line, const char *reason +#else +#define GRPC_SUBCHANNEL_REF(p, r) grpc_subchannel_ref((p)) +#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) \ + grpc_subchannel_ref_from_weak_ref((p)) +#define GRPC_SUBCHANNEL_UNREF(cl, p, r) grpc_subchannel_unref((cl), (p)) +#define GRPC_SUBCHANNEL_WEAK_REF(p, r) grpc_subchannel_weak_ref((p)) +#define GRPC_SUBCHANNEL_WEAK_UNREF(cl, p, r) \ + grpc_subchannel_weak_unref((cl), (p)) +#define GRPC_CONNECTED_SUBCHANNEL_REF(p, r) grpc_connected_subchannel_ref((p)) +#define GRPC_CONNECTED_SUBCHANNEL_UNREF(cl, p, r) \ + grpc_connected_subchannel_unref((cl), (p)) +#define GRPC_SUBCHANNEL_CALL_REF(p, r) grpc_subchannel_call_ref((p)) +#define GRPC_SUBCHANNEL_CALL_UNREF(cl, p, r) \ + grpc_subchannel_call_unref((cl), (p)) +#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_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_REF_EXTRA_ARGS); +void 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_REF_EXTRA_ARGS); + +/** construct a subchannel call */ +grpc_subchannel_call *grpc_connected_subchannel_create_call( + grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *connected_subchannel, + grpc_pollset *pollset); + +/** 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); + +/** poll the current connectivity state of a channel */ +grpc_connectivity_state grpc_subchannel_check_connectivity( + grpc_subchannel *channel); + +/** call notify when the connectivity state of a channel changes 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); +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); + +/** 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); + +/** 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 *op); + +/** continue querying for peer */ +char *grpc_subchannel_call_get_peer(grpc_exec_ctx *exec_ctx, + 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; + /** 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; + /** Address to connect to */ + struct sockaddr *addr; + size_t addr_len; +}; + +/** create a subchannel given a connector */ +grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, + grpc_connector *connector, + grpc_subchannel_args *args); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H */ diff --git a/src/core/ext/client_config/subchannel_factory.c b/src/core/ext/client_config/subchannel_factory.c new file mode 100644 index 0000000000..d1e4d75a02 --- /dev/null +++ b/src/core/ext/client_config/subchannel_factory.c @@ -0,0 +1,49 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/subchannel_factory.h" + +void grpc_subchannel_factory_ref(grpc_subchannel_factory* factory) { + factory->vtable->ref(factory); +} + +void grpc_subchannel_factory_unref(grpc_exec_ctx* exec_ctx, + grpc_subchannel_factory* factory) { + factory->vtable->unref(exec_ctx, factory); +} + +grpc_subchannel* grpc_subchannel_factory_create_subchannel( + grpc_exec_ctx* exec_ctx, grpc_subchannel_factory* factory, + grpc_subchannel_args* args) { + return factory->vtable->create_subchannel(exec_ctx, factory, args); +} diff --git a/src/core/ext/client_config/subchannel_factory.h b/src/core/ext/client_config/subchannel_factory.h new file mode 100644 index 0000000000..6614e935e5 --- /dev/null +++ b/src/core/ext/client_config/subchannel_factory.h @@ -0,0 +1,66 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H + +#include "src/core/lib/channel/channel_stack.h" +#include "src/core/ext/client_config/subchannel.h" + +typedef struct grpc_subchannel_factory grpc_subchannel_factory; +typedef struct grpc_subchannel_factory_vtable grpc_subchannel_factory_vtable; + +/** Constructor for new configured channels. + Creating decorators around this type is encouraged to adapt behavior. */ +struct grpc_subchannel_factory { + const grpc_subchannel_factory_vtable *vtable; +}; + +struct grpc_subchannel_factory_vtable { + void (*ref)(grpc_subchannel_factory *factory); + void (*unref)(grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory); + grpc_subchannel *(*create_subchannel)(grpc_exec_ctx *exec_ctx, + grpc_subchannel_factory *factory, + grpc_subchannel_args *args); +}; + +void grpc_subchannel_factory_ref(grpc_subchannel_factory *factory); +void grpc_subchannel_factory_unref(grpc_exec_ctx *exec_ctx, + grpc_subchannel_factory *factory); + +/** Create a new grpc_subchannel */ +grpc_subchannel *grpc_subchannel_factory_create_subchannel( + grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory, + grpc_subchannel_args *args); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */ diff --git a/src/core/ext/client_config/subchannel_index.c b/src/core/ext/client_config/subchannel_index.c new file mode 100644 index 0000000000..ab8d9bd91d --- /dev/null +++ b/src/core/ext/client_config/subchannel_index.c @@ -0,0 +1,262 @@ +// +// +// Copyright 2016, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// + +#include "src/core/ext/client_config/subchannel_index.h" + +#include +#include + +#include +#include +#include + +#include "src/core/lib/channel/channel_args.h" + +// a map of subchannel_key --> subchannel, used for detecting connections +// to the same destination in order to share them +static gpr_avl g_subchannel_index; + +static gpr_mu g_mu; + +struct grpc_subchannel_key { + grpc_connector *connector; + grpc_subchannel_args args; +}; + +GPR_TLS_DECL(subchannel_index_exec_ctx); + +static void enter_ctx(grpc_exec_ctx *exec_ctx) { + GPR_ASSERT(gpr_tls_get(&subchannel_index_exec_ctx) == 0); + gpr_tls_set(&subchannel_index_exec_ctx, (intptr_t)exec_ctx); +} + +static void leave_ctx(grpc_exec_ctx *exec_ctx) { + GPR_ASSERT(gpr_tls_get(&subchannel_index_exec_ctx) == (intptr_t)exec_ctx); + gpr_tls_set(&subchannel_index_exec_ctx, 0); +} + +static grpc_exec_ctx *current_ctx() { + grpc_exec_ctx *c = (grpc_exec_ctx *)gpr_tls_get(&subchannel_index_exec_ctx); + GPR_ASSERT(c != NULL); + return c; +} + +static grpc_subchannel_key *create_key( + grpc_connector *connector, grpc_subchannel_args *args, + grpc_channel_args *(*copy_channel_args)(const grpc_channel_args *args)) { + grpc_subchannel_key *k = gpr_malloc(sizeof(*k)); + k->connector = grpc_connector_ref(connector); + k->args.filter_count = args->filter_count; + k->args.filters = gpr_malloc(sizeof(*k->args.filters) * k->args.filter_count); + memcpy((grpc_channel_filter *)k->args.filters, args->filters, + sizeof(*k->args.filters) * k->args.filter_count); + k->args.addr_len = args->addr_len; + k->args.addr = gpr_malloc(args->addr_len); + memcpy(k->args.addr, args->addr, k->args.addr_len); + k->args.args = copy_channel_args(args->args); + return k; +} + +grpc_subchannel_key *grpc_subchannel_key_create(grpc_connector *connector, + grpc_subchannel_args *args) { + return create_key(connector, args, grpc_channel_args_normalize); +} + +static grpc_subchannel_key *subchannel_key_copy(grpc_subchannel_key *k) { + return create_key(k->connector, &k->args, grpc_channel_args_copy); +} + +static int subchannel_key_compare(grpc_subchannel_key *a, + grpc_subchannel_key *b) { + int c = GPR_ICMP(a->connector, b->connector); + if (c != 0) return c; + c = GPR_ICMP(a->args.addr_len, b->args.addr_len); + if (c != 0) return c; + c = GPR_ICMP(a->args.filter_count, b->args.filter_count); + if (c != 0) return c; + c = memcmp(a->args.addr, b->args.addr, a->args.addr_len); + if (c != 0) return c; + c = memcmp(a->args.filters, b->args.filters, + a->args.filter_count * sizeof(*a->args.filters)); + if (c != 0) return c; + 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) { + grpc_connector_unref(exec_ctx, k->connector); + gpr_free(k->args.addr); + gpr_free((grpc_channel_args *)k->args.filters); + grpc_channel_args_destroy((grpc_channel_args *)k->args.args); + gpr_free(k); +} + +static void sck_avl_destroy(void *p) { + grpc_subchannel_key_destroy(current_ctx(), p); +} + +static void *sck_avl_copy(void *p) { return subchannel_key_copy(p); } + +static long sck_avl_compare(void *a, void *b) { + return subchannel_key_compare(a, b); +} + +static void scv_avl_destroy(void *p) { + GRPC_SUBCHANNEL_WEAK_UNREF(current_ctx(), p, "subchannel_index"); +} + +static void *scv_avl_copy(void *p) { + GRPC_SUBCHANNEL_WEAK_REF(p, "subchannel_index"); + return p; +} + +static const gpr_avl_vtable subchannel_avl_vtable = { + .destroy_key = sck_avl_destroy, + .copy_key = sck_avl_copy, + .compare_keys = sck_avl_compare, + .destroy_value = scv_avl_destroy, + .copy_value = scv_avl_copy}; + +void grpc_subchannel_index_init(void) { + g_subchannel_index = gpr_avl_create(&subchannel_avl_vtable); + gpr_mu_init(&g_mu); + gpr_tls_init(&subchannel_index_exec_ctx); +} + +void grpc_subchannel_index_shutdown(void) { + gpr_mu_destroy(&g_mu); + gpr_avl_unref(g_subchannel_index); + gpr_tls_destroy(&subchannel_index_exec_ctx); +} + +grpc_subchannel *grpc_subchannel_index_find(grpc_exec_ctx *exec_ctx, + grpc_subchannel_key *key) { + enter_ctx(exec_ctx); + + // 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); + gpr_mu_unlock(&g_mu); + + grpc_subchannel *c = + GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(gpr_avl_get(index, key), "index_find"); + gpr_avl_unref(index); + + leave_ctx(exec_ctx); + return c; +} + +grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, + grpc_subchannel_key *key, + grpc_subchannel *constructed) { + enter_ctx(exec_ctx); + + grpc_subchannel *c = NULL; + + while (c == NULL) { + // Compare and swap loop: + // - take a reference to the current index + gpr_mu_lock(&g_mu); + gpr_avl index = gpr_avl_ref(g_subchannel_index); + gpr_mu_unlock(&g_mu); + + // - Check to see if a subchannel already exists + c = gpr_avl_get(index, key); + if (c != NULL) { + // yes -> we're done + GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, constructed, "index_register"); + } else { + // no -> update the avl and compare/swap + gpr_avl updated = + gpr_avl_add(gpr_avl_ref(index), subchannel_key_copy(key), + GRPC_SUBCHANNEL_WEAK_REF(constructed, "index_register")); + + // it may happen (but it's expected to be unlikely) + // that some other thread has changed the index: + // compare/swap here to check that, and retry as necessary + gpr_mu_lock(&g_mu); + if (index.root == g_subchannel_index.root) { + GPR_SWAP(gpr_avl, updated, g_subchannel_index); + c = constructed; + } + gpr_mu_unlock(&g_mu); + + gpr_avl_unref(updated); + } + gpr_avl_unref(index); + } + + leave_ctx(exec_ctx); + + return c; +} + +void grpc_subchannel_index_unregister(grpc_exec_ctx *exec_ctx, + grpc_subchannel_key *key, + grpc_subchannel *constructed) { + enter_ctx(exec_ctx); + + bool done = false; + while (!done) { + // Compare and swap loop: + // - take a reference to the current index + gpr_mu_lock(&g_mu); + gpr_avl index = gpr_avl_ref(g_subchannel_index); + gpr_mu_unlock(&g_mu); + + // Check to see if this key still refers to the previously + // registered subchannel + grpc_subchannel *c = gpr_avl_get(index, key); + if (c != constructed) { + gpr_avl_unref(index); + break; + } + + // compare and swap the update (some other thread may have + // mutated the index behind us) + gpr_avl updated = gpr_avl_remove(gpr_avl_ref(index), key); + + gpr_mu_lock(&g_mu); + if (index.root == g_subchannel_index.root) { + GPR_SWAP(gpr_avl, updated, g_subchannel_index); + done = true; + } + gpr_mu_unlock(&g_mu); + + gpr_avl_unref(updated); + gpr_avl_unref(index); + } + + leave_ctx(exec_ctx); +} diff --git a/src/core/ext/client_config/subchannel_index.h b/src/core/ext/client_config/subchannel_index.h new file mode 100644 index 0000000000..77972f8719 --- /dev/null +++ b/src/core/ext/client_config/subchannel_index.h @@ -0,0 +1,77 @@ +/* + * + * Copyright 2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H + +#include "src/core/ext/client_config/connector.h" +#include "src/core/ext/client_config/subchannel.h" + +/** \file Provides an index of active subchannels so that they can be + shared amongst channels */ + +typedef struct grpc_subchannel_key grpc_subchannel_key; + +/** Create a key that can be used to uniquely identify a subchannel */ +grpc_subchannel_key *grpc_subchannel_key_create(grpc_connector *con, + grpc_subchannel_args *args); + +/** Destroy a subchannel 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); + +/** 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); + +/** 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); + +/** Initialize the subchannel index (global) */ +void grpc_subchannel_index_init(void); +/** Shutdown the subchannel index (global) */ +void grpc_subchannel_index_shutdown(void); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */ diff --git a/src/core/ext/client_config/uri_parser.c b/src/core/ext/client_config/uri_parser.c new file mode 100644 index 0000000000..5b485528d4 --- /dev/null +++ b/src/core/ext/client_config/uri_parser.c @@ -0,0 +1,242 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/uri_parser.h" + +#include + +#include +#include +#include +#include + +/** 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, + int suppress_errors) { + char *line_prefix; + size_t pfx_len; + + if (!suppress_errors) { + gpr_asprintf(&line_prefix, "bad uri.%s: '", section); + pfx_len = strlen(line_prefix) + pos; + gpr_log(GPR_ERROR, "%s%s'", line_prefix, uri_text); + gpr_free(line_prefix); + + line_prefix = 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; +} + +/** Returns a copy of \a src[begin, end) */ +static char *copy_component(const char *src, size_t begin, size_t end) { + char *out = gpr_malloc(end - begin + 1); + memcpy(out, src + begin, end - begin); + out[end - begin] = 0; + return out; +} + +/** 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) { + /* pchar = unreserved / pct-encoded / sub-delims / ":" / "@" + * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" + * pct-encoded = "%" HEXDIG HEXDIG + * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" + / "*" / "+" / "," / ";" / "=" */ + char c = uri_text[i]; + if (((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z')) || + ((c >= '0') && (c <= '9')) || + (c == '-' || c == '.' || c == '_' || c == '~') || /* unreserved */ + (c == '!' || c == '$' || c == '&' || c == '\'' || c == '$' || c == '&' || + c == '(' || c == ')' || c == '*' || c == '+' || c == ',' || c == ';' || + c == '=') /* sub-delims */) { + return 1; + } + if (c == '%') { /* pct-encoded */ + size_t j; + if (uri_text[i + 1] == 0 || uri_text[i + 2] == 0) { + return NOT_SET; + } + for (j = i + 1; j < 2; j++) { + c = uri_text[j]; + if (!(((c >= '0') && (c <= '9')) || ((c >= 'a') && (c <= 'f')) || + ((c >= 'A') && (c <= 'F')))) { + return NOT_SET; + } + } + return 2; + } + return 0; +} + +/* *( pchar / "?" / "/" ) */ +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 */ + switch (advance) { + case 0: /* uri_text[i] isn't in pchar */ + /* maybe it's ? or / */ + if (uri_text[*i] == '?' || uri_text[*i] == '/') { + (*i)++; + break; + } else { + return 1; + } + GPR_UNREACHABLE_CODE(return 0); + default: + (*i) += advance; + break; + case NOT_SET: /* uri_text[i] introduces an invalid URI */ + return 0; + } + } + /* *i is the first uri_text position past the \a query production, maybe \0 */ + return 1; +} + +grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) { + grpc_uri *uri; + size_t scheme_begin = 0; + size_t scheme_end = NOT_SET; + size_t authority_begin = NOT_SET; + size_t authority_end = NOT_SET; + size_t path_begin = NOT_SET; + size_t path_end = NOT_SET; + size_t query_begin = NOT_SET; + size_t query_end = NOT_SET; + size_t fragment_begin = NOT_SET; + size_t fragment_end = NOT_SET; + size_t i; + + for (i = scheme_begin; uri_text[i] != 0; i++) { + if (uri_text[i] == ':') { + scheme_end = i; + break; + } + if (uri_text[i] >= 'a' && uri_text[i] <= 'z') continue; + if (uri_text[i] >= 'A' && uri_text[i] <= 'Z') continue; + if (i != scheme_begin) { + if (uri_text[i] >= '0' && uri_text[i] <= '9') continue; + if (uri_text[i] == '+') continue; + if (uri_text[i] == '-') continue; + if (uri_text[i] == '.') continue; + } + break; + } + if (scheme_end == NOT_SET) { + return bad_uri(uri_text, i, "scheme", suppress_errors); + } + + if (uri_text[scheme_end + 1] == '/' && uri_text[scheme_end + 2] == '/') { + authority_begin = scheme_end + 3; + for (i = authority_begin; uri_text[i] != 0 && authority_end == NOT_SET; + i++) { + if (uri_text[i] == '/' || uri_text[i] == '?' || uri_text[i] == '#') { + authority_end = i; + } + } + if (authority_end == NOT_SET && uri_text[i] == 0) { + authority_end = i; + } + if (authority_end == NOT_SET) { + return bad_uri(uri_text, i, "authority", suppress_errors); + } + /* TODO(ctiller): parse the authority correctly */ + path_begin = authority_end; + } else { + path_begin = scheme_end + 1; + } + + for (i = path_begin; uri_text[i] != 0; i++) { + if (uri_text[i] == '?' || uri_text[i] == '#') { + path_end = i; + break; + } + } + if (path_end == NOT_SET && uri_text[i] == 0) { + path_end = i; + } + if (path_end == NOT_SET) { + return bad_uri(uri_text, i, "path", suppress_errors); + } + + if (uri_text[i] == '?') { + query_begin = ++i; + if (!parse_fragment_or_query(uri_text, &i)) { + return bad_uri(uri_text, i, "query", suppress_errors); + } else if (uri_text[i] != 0 && uri_text[i] != '#') { + /* We must be at the end or at the beginning of a fragment */ + return bad_uri(uri_text, i, "query", suppress_errors); + } + query_end = i; + } + if (uri_text[i] == '#') { + fragment_begin = ++i; + if (!parse_fragment_or_query(uri_text, &i)) { + return bad_uri(uri_text, i - fragment_end, "fragment", suppress_errors); + } else if (uri_text[i] != 0) { + /* We must be at the end */ + return bad_uri(uri_text, i, "fragment", suppress_errors); + } + fragment_end = i; + } + + uri = gpr_malloc(sizeof(*uri)); + memset(uri, 0, sizeof(*uri)); + uri->scheme = copy_component(uri_text, scheme_begin, scheme_end); + uri->authority = copy_component(uri_text, authority_begin, authority_end); + uri->path = copy_component(uri_text, path_begin, path_end); + uri->query = copy_component(uri_text, query_begin, query_end); + uri->fragment = copy_component(uri_text, fragment_begin, fragment_end); + + return uri; +} + +void grpc_uri_destroy(grpc_uri *uri) { + if (!uri) return; + gpr_free(uri->scheme); + gpr_free(uri->authority); + gpr_free(uri->path); + gpr_free(uri->query); + gpr_free(uri->fragment); + gpr_free(uri); +} diff --git a/src/core/ext/client_config/uri_parser.h b/src/core/ext/client_config/uri_parser.h new file mode 100644 index 0000000000..4f8e809b2e --- /dev/null +++ b/src/core/ext/client_config/uri_parser.h @@ -0,0 +1,51 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H +#define GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H + +typedef struct { + char *scheme; + char *authority; + char *path; + char *query; + char *fragment; +} grpc_uri; + +/** parse a uri, return NULL on failure */ +grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors); + +/** destroy a uri */ +void grpc_uri_destroy(grpc_uri *uri); + +#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H */ diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/lb_policy/grpclb/load_balancer_api.h index d329a2ffe8..7a550f6da8 100644 --- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h +++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.h @@ -37,7 +37,7 @@ #include #include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" -#include "src/core/lib/client_config/lb_policy_factory.h" +#include "src/core/ext/client_config/lb_policy_factory.h" #ifdef __cplusplus extern "C" { diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/lb_policy/pick_first/pick_first.c index cb5c40501e..9afa219aaa 100644 --- a/src/core/ext/lb_policy/pick_first/pick_first.c +++ b/src/core/ext/lb_policy/pick_first/pick_first.c @@ -34,7 +34,7 @@ #include #include -#include "src/core/lib/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/lb_policy_registry.h" #include "src/core/lib/transport/connectivity_state.h" typedef struct pending_pick { diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/lb_policy/round_robin/round_robin.c index d94c081494..eb168a6215 100644 --- a/src/core/ext/lb_policy/round_robin/round_robin.c +++ b/src/core/ext/lb_policy/round_robin/round_robin.c @@ -35,7 +35,7 @@ #include -#include "src/core/lib/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/lb_policy_registry.h" #include "src/core/lib/debug/trace.h" #include "src/core/lib/transport/connectivity_state.h" diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/resolver/dns/native/dns_resolver.c index 70d8a3fe2d..95126ab203 100644 --- a/src/core/ext/resolver/dns/native/dns_resolver.c +++ b/src/core/ext/resolver/dns/native/dns_resolver.c @@ -37,8 +37,8 @@ #include #include -#include "src/core/lib/client_config/lb_policy_registry.h" -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/iomgr/timer.h" #include "src/core/lib/support/backoff.h" diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c index 69595ca3db..3c97e659bf 100644 --- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c +++ b/src/core/ext/resolver/sockaddr/sockaddr_resolver.c @@ -1,6 +1,6 @@ /* * - * Copyright 2015, Google Inc. + * Copyright 2015-2016, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -40,8 +40,8 @@ #include #include -#include "src/core/lib/client_config/lb_policy_registry.h" -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/iomgr/unix_sockets_posix.h" #include "src/core/lib/support/string.h" diff --git a/src/core/ext/resolver/zookeeper/zookeeper_resolver.c b/src/core/ext/resolver/zookeeper/zookeeper_resolver.c index a66c9925f0..a8b1f66bc4 100644 --- a/src/core/ext/resolver/zookeeper/zookeeper_resolver.c +++ b/src/core/ext/resolver/zookeeper/zookeeper_resolver.c @@ -31,7 +31,7 @@ * */ -#include "src/core/lib/client_config/resolvers/zookeeper_resolver.h" +#include "src/core/ext/client_config/resolvers/zookeeper_resolver.h" #include @@ -41,8 +41,8 @@ #include #include -#include "src/core/lib/client_config/lb_policy_registry.h" -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/json/json.h" #include "src/core/lib/support/string.h" diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.c b/src/core/ext/transport/chttp2/client/insecure/channel_create.c index 35450c9e8d..baa81c9906 100644 --- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c +++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c @@ -43,10 +43,10 @@ #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/census/grpc_filter.h" #include "src/core/lib/channel/channel_args.h" -#include "src/core/lib/channel/client_channel.h" +#include "src/core/ext/client_config/client_channel.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/http_client_filter.h" -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/tcp_client.h" #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/channel.h" diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c index 3465d2b6c4..a1a70e8d90 100644 --- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c +++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c @@ -42,8 +42,8 @@ #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/channel_args.h" -#include "src/core/lib/channel/client_channel.h" -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/tcp_client.h" #include "src/core/lib/security/auth_filters.h" #include "src/core/lib/security/credentials.h" diff --git a/src/core/lib/channel/client_channel.c b/src/core/lib/channel/client_channel.c deleted file mode 100644 index 3f7cf1cf97..0000000000 --- a/src/core/lib/channel/client_channel.c +++ /dev/null @@ -1,526 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/channel/client_channel.h" - -#include -#include - -#include -#include -#include -#include - -#include "src/core/lib/channel/channel_args.h" -#include "src/core/lib/channel/connected_channel.h" -#include "src/core/lib/channel/subchannel_call_holder.h" -#include "src/core/lib/iomgr/iomgr.h" -#include "src/core/lib/profiling/timers.h" -#include "src/core/lib/support/string.h" -#include "src/core/lib/surface/channel.h" -#include "src/core/lib/transport/connectivity_state.h" - -/* Client channel implementation */ - -typedef grpc_subchannel_call_holder call_data; - -typedef struct client_channel_channel_data { - /** resolver for this channel */ - grpc_resolver *resolver; - /** have we started resolving this channel */ - int started_resolving; - - /** mutex protecting client configuration, including all - variables below in this data structure */ - gpr_mu mu_config; - /** currently active load balancer - guarded by mu_config */ - grpc_lb_policy *lb_policy; - /** incoming configuration - set by resolver.next - guarded by mu_config */ - grpc_client_config *incoming_configuration; - /** a list of closures that are all waiting for config to come in */ - grpc_closure_list waiting_for_config_closures; - /** resolver callback */ - grpc_closure on_config_changed; - /** connectivity state being tracked */ - grpc_connectivity_state_tracker state_tracker; - /** when an lb_policy arrives, should we try to exit idle */ - int exit_idle_when_lb_policy_arrives; - /** owning stack */ - grpc_channel_stack *owning_stack; - /** interested parties (owned) */ - grpc_pollset_set *interested_parties; -} 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; - grpc_closure on_changed; - grpc_connectivity_state state; - grpc_lb_policy *lb_policy; -} lb_policy_connectivity_watcher; - -typedef struct { - grpc_closure closure; - grpc_call_element *elem; -} waiting_call; - -static char *cc_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { - return grpc_subchannel_call_holder_get_peer(exec_ctx, elem->call_data); -} - -static void cc_start_transport_stream_op(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem, - grpc_transport_stream_op *op) { - GRPC_CALL_LOG_OP(GPR_INFO, elem, op); - grpc_subchannel_call_holder_perform_op(exec_ctx, elem->call_data, op); -} - -static void watch_lb_policy(grpc_exec_ctx *exec_ctx, channel_data *chand, - grpc_lb_policy *lb_policy, - grpc_connectivity_state current_state); - -static void on_lb_policy_state_changed_locked( - grpc_exec_ctx *exec_ctx, lb_policy_connectivity_watcher *w) { - grpc_connectivity_state publish_state = w->state; - /* check if the notification is for a stale policy */ - if (w->lb_policy != w->chand->lb_policy) return; - - if (publish_state == GRPC_CHANNEL_FATAL_FAILURE && - w->chand->resolver != NULL) { - publish_state = GRPC_CHANNEL_TRANSIENT_FAILURE; - grpc_resolver_channel_saw_error(exec_ctx, w->chand->resolver); - GRPC_LB_POLICY_UNREF(exec_ctx, w->chand->lb_policy, "channel"); - w->chand->lb_policy = NULL; - } - grpc_connectivity_state_set(exec_ctx, &w->chand->state_tracker, publish_state, - "lb_changed"); - if (w->state != GRPC_CHANNEL_FATAL_FAILURE) { - watch_lb_policy(exec_ctx, w->chand, w->lb_policy, w->state); - } -} - -static void on_lb_policy_state_changed(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { - lb_policy_connectivity_watcher *w = arg; - - gpr_mu_lock(&w->chand->mu_config); - on_lb_policy_state_changed_locked(exec_ctx, w); - gpr_mu_unlock(&w->chand->mu_config); - - GRPC_CHANNEL_STACK_UNREF(exec_ctx, w->chand->owning_stack, "watch_lb_policy"); - gpr_free(w); -} - -static void watch_lb_policy(grpc_exec_ctx *exec_ctx, channel_data *chand, - grpc_lb_policy *lb_policy, - grpc_connectivity_state current_state) { - lb_policy_connectivity_watcher *w = 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, w); - w->state = current_state; - w->lb_policy = lb_policy; - grpc_lb_policy_notify_on_state_change(exec_ctx, lb_policy, &w->state, - &w->on_changed); -} - -static void cc_on_config_changed(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { - channel_data *chand = arg; - grpc_lb_policy *lb_policy = NULL; - grpc_lb_policy *old_lb_policy; - grpc_connectivity_state state = GRPC_CHANNEL_TRANSIENT_FAILURE; - int exit_idle = 0; - - if (chand->incoming_configuration != NULL) { - lb_policy = grpc_client_config_get_lb_policy(chand->incoming_configuration); - if (lb_policy != NULL) { - GRPC_LB_POLICY_REF(lb_policy, "channel"); - GRPC_LB_POLICY_REF(lb_policy, "config_change"); - state = grpc_lb_policy_check_connectivity(exec_ctx, lb_policy); - } - - grpc_client_config_unref(exec_ctx, chand->incoming_configuration); - } - - chand->incoming_configuration = NULL; - - if (lb_policy != NULL) { - grpc_pollset_set_add_pollset_set(exec_ctx, lb_policy->interested_parties, - chand->interested_parties); - } - - gpr_mu_lock(&chand->mu_config); - old_lb_policy = chand->lb_policy; - chand->lb_policy = lb_policy; - if (lb_policy != NULL || chand->resolver == NULL /* disconnected */) { - grpc_exec_ctx_enqueue_list(exec_ctx, &chand->waiting_for_config_closures, - NULL); - } - if (lb_policy != NULL && chand->exit_idle_when_lb_policy_arrives) { - GRPC_LB_POLICY_REF(lb_policy, "exit_idle"); - exit_idle = 1; - chand->exit_idle_when_lb_policy_arrives = 0; - } - - if (iomgr_success && chand->resolver) { - grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, state, - "new_lb+resolver"); - if (lb_policy != NULL) { - watch_lb_policy(exec_ctx, chand, lb_policy, state); - } - GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); - grpc_resolver_next(exec_ctx, chand->resolver, - &chand->incoming_configuration, - &chand->on_config_changed); - gpr_mu_unlock(&chand->mu_config); - } else { - if (chand->resolver != NULL) { - grpc_resolver_shutdown(exec_ctx, chand->resolver); - GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); - chand->resolver = NULL; - } - grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, "resolver_gone"); - gpr_mu_unlock(&chand->mu_config); - } - - if (exit_idle) { - grpc_lb_policy_exit_idle(exec_ctx, lb_policy); - GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "exit_idle"); - } - - if (old_lb_policy != NULL) { - grpc_pollset_set_del_pollset_set( - exec_ctx, old_lb_policy->interested_parties, chand->interested_parties); - GRPC_LB_POLICY_UNREF(exec_ctx, old_lb_policy, "channel"); - } - - if (lb_policy != NULL) { - GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "config_change"); - } - - GRPC_CHANNEL_STACK_UNREF(exec_ctx, chand->owning_stack, "resolver"); -} - -static void cc_start_transport_op(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_transport_op *op) { - channel_data *chand = elem->channel_data; - - grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, true, NULL); - - GPR_ASSERT(op->set_accept_stream == false); - if (op->bind_pollset != NULL) { - grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties, - op->bind_pollset); - } - - gpr_mu_lock(&chand->mu_config); - if (op->on_connectivity_state_change != NULL) { - 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; - } - - if (op->send_ping != NULL) { - if (chand->lb_policy == NULL) { - grpc_exec_ctx_enqueue(exec_ctx, op->send_ping, false, NULL); - } else { - grpc_lb_policy_ping_one(exec_ctx, chand->lb_policy, op->send_ping); - op->bind_pollset = NULL; - } - op->send_ping = NULL; - } - - if (op->disconnect && chand->resolver != NULL) { - grpc_connectivity_state_set(exec_ctx, &chand->state_tracker, - GRPC_CHANNEL_FATAL_FAILURE, "disconnect"); - grpc_resolver_shutdown(exec_ctx, chand->resolver); - GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); - chand->resolver = NULL; - if (chand->lb_policy != NULL) { - 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; - } - } - gpr_mu_unlock(&chand->mu_config); -} - -typedef struct { - grpc_metadata_batch *initial_metadata; - grpc_connected_subchannel **connected_subchannel; - grpc_closure *on_ready; - grpc_call_element *elem; - grpc_closure closure; -} continue_picking_args; - -static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *arg, - grpc_metadata_batch *initial_metadata, - grpc_connected_subchannel **connected_subchannel, - grpc_closure *on_ready); - -static void continue_picking(grpc_exec_ctx *exec_ctx, void *arg, bool success) { - continue_picking_args *cpa = arg; - if (!success) { - grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); - } else if (cpa->connected_subchannel == NULL) { - /* cancelled, do nothing */ - } else if (cc_pick_subchannel(exec_ctx, cpa->elem, cpa->initial_metadata, - cpa->connected_subchannel, cpa->on_ready)) { - grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, true, NULL); - } - gpr_free(cpa); -} - -static int cc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *elemp, - grpc_metadata_batch *initial_metadata, - grpc_connected_subchannel **connected_subchannel, - grpc_closure *on_ready) { - grpc_call_element *elem = elemp; - channel_data *chand = elem->channel_data; - call_data *calld = elem->call_data; - continue_picking_args *cpa; - grpc_closure *closure; - - GPR_ASSERT(connected_subchannel); - - gpr_mu_lock(&chand->mu_config); - if (initial_metadata == NULL) { - if (chand->lb_policy != NULL) { - grpc_lb_policy_cancel_pick(exec_ctx, chand->lb_policy, - connected_subchannel); - } - for (closure = chand->waiting_for_config_closures.head; closure != NULL; - closure = grpc_closure_next(closure)) { - cpa = closure->cb_arg; - if (cpa->connected_subchannel == connected_subchannel) { - cpa->connected_subchannel = NULL; - grpc_exec_ctx_enqueue(exec_ctx, cpa->on_ready, false, NULL); - } - } - gpr_mu_unlock(&chand->mu_config); - return 1; - } - if (chand->lb_policy != NULL) { - grpc_lb_policy *lb_policy = chand->lb_policy; - int r; - GRPC_LB_POLICY_REF(lb_policy, "cc_pick_subchannel"); - gpr_mu_unlock(&chand->mu_config); - r = grpc_lb_policy_pick(exec_ctx, lb_policy, calld->pollset, - initial_metadata, connected_subchannel, on_ready); - GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "cc_pick_subchannel"); - return r; - } - if (chand->resolver != NULL && !chand->started_resolving) { - chand->started_resolving = 1; - GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); - grpc_resolver_next(exec_ctx, chand->resolver, - &chand->incoming_configuration, - &chand->on_config_changed); - } - cpa = gpr_malloc(sizeof(*cpa)); - cpa->initial_metadata = initial_metadata; - cpa->connected_subchannel = connected_subchannel; - cpa->on_ready = on_ready; - cpa->elem = elem; - grpc_closure_init(&cpa->closure, continue_picking, cpa); - grpc_closure_list_add(&chand->waiting_for_config_closures, &cpa->closure, 1); - gpr_mu_unlock(&chand->mu_config); - return 0; -} - -/* Constructor for call_data */ -static void init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_call_element_args *args) { - grpc_subchannel_call_holder_init(elem->call_data, cc_pick_subchannel, elem, - args->call_stack); -} - -/* Destructor for call_data */ -static void destroy_call_elem(grpc_exec_ctx *exec_ctx, - grpc_call_element *elem) { - grpc_subchannel_call_holder_destroy(exec_ctx, elem->call_data); -} - -/* Constructor for channel_data */ -static void init_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem, - grpc_channel_element_args *args) { - channel_data *chand = elem->channel_data; - - memset(chand, 0, sizeof(*chand)); - - GPR_ASSERT(args->is_last); - GPR_ASSERT(elem->filter == &grpc_client_channel_filter); - - gpr_mu_init(&chand->mu_config); - grpc_closure_init(&chand->on_config_changed, cc_on_config_changed, chand); - chand->owning_stack = args->channel_stack; - - grpc_connectivity_state_init(&chand->state_tracker, GRPC_CHANNEL_IDLE, - "client_channel"); - chand->interested_parties = grpc_pollset_set_create(); -} - -/* Destructor for channel_data */ -static void destroy_channel_elem(grpc_exec_ctx *exec_ctx, - grpc_channel_element *elem) { - channel_data *chand = elem->channel_data; - - if (chand->resolver != NULL) { - grpc_resolver_shutdown(exec_ctx, chand->resolver); - GRPC_RESOLVER_UNREF(exec_ctx, chand->resolver, "channel"); - } - if (chand->lb_policy != NULL) { - 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"); - } - grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker); - grpc_pollset_set_destroy(chand->interested_parties); - gpr_mu_destroy(&chand->mu_config); -} - -static void cc_set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem, - grpc_pollset *pollset) { - call_data *calld = elem->call_data; - calld->pollset = pollset; -} - -const grpc_channel_filter grpc_client_channel_filter = { - cc_start_transport_stream_op, - cc_start_transport_op, - sizeof(call_data), - init_call_elem, - cc_set_pollset, - destroy_call_elem, - sizeof(channel_data), - init_channel_elem, - destroy_channel_elem, - cc_get_peer, - "client-channel", -}; - -void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx, - grpc_channel_stack *channel_stack, - grpc_resolver *resolver) { - /* post construction initialization: set the transport setup pointer */ - grpc_channel_element *elem = grpc_channel_stack_last_element(channel_stack); - channel_data *chand = elem->channel_data; - gpr_mu_lock(&chand->mu_config); - GPR_ASSERT(!chand->resolver); - chand->resolver = resolver; - GRPC_RESOLVER_REF(resolver, "channel"); - if (!grpc_closure_list_empty(chand->waiting_for_config_closures) || - chand->exit_idle_when_lb_policy_arrives) { - chand->started_resolving = 1; - GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); - grpc_resolver_next(exec_ctx, resolver, &chand->incoming_configuration, - &chand->on_config_changed); - } - gpr_mu_unlock(&chand->mu_config); -} - -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 = elem->channel_data; - grpc_connectivity_state out; - gpr_mu_lock(&chand->mu_config); - out = grpc_connectivity_state_check(&chand->state_tracker); - if (out == GRPC_CHANNEL_IDLE && try_to_connect) { - if (chand->lb_policy != NULL) { - grpc_lb_policy_exit_idle(exec_ctx, chand->lb_policy); - } else { - chand->exit_idle_when_lb_policy_arrives = 1; - if (!chand->started_resolving && chand->resolver != NULL) { - GRPC_CHANNEL_STACK_REF(chand->owning_stack, "resolver"); - chand->started_resolving = 1; - grpc_resolver_next(exec_ctx, chand->resolver, - &chand->incoming_configuration, - &chand->on_config_changed); - } - } - } - gpr_mu_unlock(&chand->mu_config); - return out; -} - -typedef struct { - channel_data *chand; - grpc_pollset *pollset; - grpc_closure *on_complete; - grpc_closure my_closure; -} external_connectivity_watcher; - -static void on_external_watch_complete(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { - external_connectivity_watcher *w = arg; - grpc_closure *follow_up = w->on_complete; - grpc_pollset_set_del_pollset(exec_ctx, w->chand->interested_parties, - w->pollset); - GRPC_CHANNEL_STACK_UNREF(exec_ctx, w->chand->owning_stack, - "external_connectivity_watcher"); - gpr_free(w); - follow_up->cb(exec_ctx, follow_up->cb_arg, iomgr_success); -} - -void grpc_client_channel_watch_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, - grpc_connectivity_state *state, grpc_closure *on_complete) { - channel_data *chand = elem->channel_data; - external_connectivity_watcher *w = gpr_malloc(sizeof(*w)); - w->chand = chand; - w->pollset = pollset; - w->on_complete = on_complete; - grpc_pollset_set_add_pollset(exec_ctx, chand->interested_parties, pollset); - grpc_closure_init(&w->my_closure, on_external_watch_complete, w); - GRPC_CHANNEL_STACK_REF(w->chand->owning_stack, - "external_connectivity_watcher"); - gpr_mu_lock(&chand->mu_config); - grpc_connectivity_state_notify_on_state_change( - exec_ctx, &chand->state_tracker, state, &w->my_closure); - gpr_mu_unlock(&chand->mu_config); -} diff --git a/src/core/lib/channel/client_channel.h b/src/core/lib/channel/client_channel.h deleted file mode 100644 index ac418c8c51..0000000000 --- a/src/core/lib/channel/client_channel.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H -#define GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H - -#include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/client_config/resolver.h" - -/* A client channel is a channel that begins disconnected, and can connect - to some endpoint on demand. If that endpoint disconnects, it will be - connected to again later. - - Calls on a disconnected client channel are queued until a connection is - established. */ - -extern const grpc_channel_filter grpc_client_channel_filter; - -/* post-construction initializer to let the client channel know which - transport setup it should cancel upon destruction, or initiate when it needs - a connection */ -void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx, - grpc_channel_stack *channel_stack, - grpc_resolver *resolver); - -grpc_connectivity_state grpc_client_channel_check_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect); - -void grpc_client_channel_watch_connectivity_state( - grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, - grpc_connectivity_state *state, grpc_closure *on_complete); - -#endif /* GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H */ diff --git a/src/core/lib/channel/subchannel_call_holder.h b/src/core/lib/channel/subchannel_call_holder.h index 5cf291a266..8e3a99e40b 100644 --- a/src/core/lib/channel/subchannel_call_holder.h +++ b/src/core/lib/channel/subchannel_call_holder.h @@ -34,7 +34,7 @@ #ifndef GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H #define GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H -#include "src/core/lib/client_config/subchannel.h" +#include "src/core/ext/client_config/subchannel.h" /** Pick a subchannel for grpc_subchannel_call_holder; Return 1 if subchannel is available immediately (in which case on_ready diff --git a/src/core/lib/client_config/README.md b/src/core/lib/client_config/README.md deleted file mode 100644 index fff7a5af5b..0000000000 --- a/src/core/lib/client_config/README.md +++ /dev/null @@ -1,66 +0,0 @@ -Client Configuration Support for GRPC -===================================== - -This library provides high level configuration machinery to construct client -channels and load balance between them. - -Each grpc_channel is created with a grpc_resolver. It is the resolver's duty -to resolve a name into configuration data for the channel. Such configuration -data might include: - -- a list of (ip, port) addresses to connect to -- a load balancing policy to decide which server to send a request to -- a set of filters to mutate outgoing requests (say, by adding metadata) - -The resolver provides this data as a stream of grpc_client_config objects to -the channel. We represent configuration as a stream so that it can be changed -by the resolver during execution, by reacting to external events (such as a -new configuration file being pushed to some store). - - -Load Balancing --------------- - -Load balancing configuration is provided by a grpc_lb_policy object, stored as -part of grpc_client_config. - -The primary job of the load balancing policies is to pick a target server given only the -initial metadata for a request. It does this by providing a grpc_subchannel -object to the owning channel. - - -Sub-Channels ------------- - -A sub-channel provides a connection to a server for a client channel. It has a -connectivity state like a regular channel, and so can be connected or -disconnected. This connectivity state can be used to inform load balancing -decisions (for example, by avoiding disconnected backends). - -Configured sub-channels are fully setup to participate in the grpc data plane. -Their behavior is specified by a set of grpc channel filters defined at their -construction. To customize this behavior, resolvers build -grpc_subchannel_factory objects, which use the decorator pattern to customize -construction arguments for concrete grpc_subchannel instances. - - -Naming for GRPC -=============== - -Names in GRPC are represented by a URI (as defined in -[RFC 3986](https://tools.ietf.org/html/rfc3986)). - -The following schemes are currently supported: - -dns:///host:port - dns schemes are currently supported so long as authority is - empty (authority based dns resolution is expected in a future - release) - -unix:path - the unix scheme is used to create and connect to unix domain - sockets - the authority must be empty, and the path - represents the absolute or relative path to the desired - socket - -ipv4:host:port - a pre-resolved ipv4 dotted decimal address/port combination - -ipv6:[host]:port - a pre-resolved ipv6 address/port combination diff --git a/src/core/lib/client_config/client_config.c b/src/core/lib/client_config/client_config.c deleted file mode 100644 index 2521023364..0000000000 --- a/src/core/lib/client_config/client_config.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/client_config.h" - -#include - -#include - -struct grpc_client_config { - gpr_refcount refs; - grpc_lb_policy *lb_policy; -}; - -grpc_client_config *grpc_client_config_create() { - grpc_client_config *c = gpr_malloc(sizeof(*c)); - memset(c, 0, sizeof(*c)); - gpr_ref_init(&c->refs, 1); - return c; -} - -void grpc_client_config_ref(grpc_client_config *c) { gpr_ref(&c->refs); } - -void grpc_client_config_unref(grpc_exec_ctx *exec_ctx, grpc_client_config *c) { - if (gpr_unref(&c->refs)) { - if (c->lb_policy != NULL) { - GRPC_LB_POLICY_UNREF(exec_ctx, c->lb_policy, "client_config"); - } - gpr_free(c); - } -} - -void grpc_client_config_set_lb_policy(grpc_client_config *c, - grpc_lb_policy *lb_policy) { - GPR_ASSERT(c->lb_policy == NULL); - if (lb_policy) { - GRPC_LB_POLICY_REF(lb_policy, "client_config"); - } - c->lb_policy = lb_policy; -} - -grpc_lb_policy *grpc_client_config_get_lb_policy(grpc_client_config *c) { - return c->lb_policy; -} diff --git a/src/core/lib/client_config/client_config.h b/src/core/lib/client_config/client_config.h deleted file mode 100644 index 8dc2f6b299..0000000000 --- a/src/core/lib/client_config/client_config.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H - -#include "src/core/lib/client_config/lb_policy.h" - -/** Total configuration for a client. Provided, and updated, by - grpc_resolver */ -typedef struct grpc_client_config grpc_client_config; - -grpc_client_config *grpc_client_config_create(); -void grpc_client_config_ref(grpc_client_config *client_config); -void grpc_client_config_unref(grpc_exec_ctx *exec_ctx, - grpc_client_config *client_config); - -void grpc_client_config_set_lb_policy(grpc_client_config *client_config, - grpc_lb_policy *lb_policy); -grpc_lb_policy *grpc_client_config_get_lb_policy( - grpc_client_config *client_config); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H */ diff --git a/src/core/lib/client_config/connector.c b/src/core/lib/client_config/connector.c deleted file mode 100644 index 4c7b823dac..0000000000 --- a/src/core/lib/client_config/connector.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/connector.h" - -grpc_connector* grpc_connector_ref(grpc_connector* connector) { - connector->vtable->ref(connector); - return connector; -} - -void grpc_connector_unref(grpc_exec_ctx* exec_ctx, grpc_connector* connector) { - connector->vtable->unref(exec_ctx, connector); -} - -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) { - connector->vtable->connect(exec_ctx, connector, in_args, out_args, notify); -} - -void grpc_connector_shutdown(grpc_exec_ctx* exec_ctx, - grpc_connector* connector) { - connector->vtable->shutdown(exec_ctx, connector); -} diff --git a/src/core/lib/client_config/connector.h b/src/core/lib/client_config/connector.h deleted file mode 100644 index 39870a261c..0000000000 --- a/src/core/lib/client_config/connector.h +++ /dev/null @@ -1,92 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H - -#include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/iomgr/sockaddr.h" -#include "src/core/lib/transport/transport.h" - -typedef struct grpc_connector grpc_connector; -typedef struct grpc_connector_vtable grpc_connector_vtable; - -struct grpc_connector { - const grpc_connector_vtable *vtable; -}; - -typedef struct { - /** set of pollsets interested in this connection */ - grpc_pollset_set *interested_parties; - /** address to connect to */ - const struct sockaddr *addr; - size_t addr_len; - /** initial connect string to send */ - gpr_slice initial_connect_string; - /** deadline for connection */ - gpr_timespec deadline; - /** channel arguments (to be passed to transport) */ - const grpc_channel_args *channel_args; -} grpc_connect_in_args; - -typedef struct { - /** the connected transport */ - grpc_transport *transport; - - /** channel arguments (to be passed to the filters) */ - const 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); - /** Implementation of grpc_connector_shutdown */ - void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_connector *connector); - /** 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); -}; - -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); -/** Cancel any pending connection */ -void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, - grpc_connector *connector); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H */ diff --git a/src/core/lib/client_config/default_initial_connect_string.c b/src/core/lib/client_config/default_initial_connect_string.c deleted file mode 100644 index a70da4a84a..0000000000 --- a/src/core/lib/client_config/default_initial_connect_string.c +++ /dev/null @@ -1,39 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include -#include "src/core/lib/iomgr/sockaddr.h" - -void grpc_set_default_initial_connect_string(struct sockaddr **addr, - size_t *addr_len, - gpr_slice *initial_str) {} diff --git a/src/core/lib/client_config/initial_connect_string.c b/src/core/lib/client_config/initial_connect_string.c deleted file mode 100644 index 4034ea2e87..0000000000 --- a/src/core/lib/client_config/initial_connect_string.c +++ /dev/null @@ -1,53 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/initial_connect_string.h" - -#include - -extern void grpc_set_default_initial_connect_string(struct sockaddr **addr, - size_t *addr_len, - gpr_slice *initial_str); - -static grpc_set_initial_connect_string_func g_set_initial_connect_string_func = - grpc_set_default_initial_connect_string; - -void grpc_test_set_initial_connect_string_function( - grpc_set_initial_connect_string_func func) { - g_set_initial_connect_string_func = func; -} - -void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len, - gpr_slice *initial_str) { - g_set_initial_connect_string_func(addr, addr_len, initial_str); -} diff --git a/src/core/lib/client_config/initial_connect_string.h b/src/core/lib/client_config/initial_connect_string.h deleted file mode 100644 index 51302768c6..0000000000 --- a/src/core/lib/client_config/initial_connect_string.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H - -#include -#include "src/core/lib/iomgr/sockaddr.h" - -typedef void (*grpc_set_initial_connect_string_func)(struct sockaddr **addr, - size_t *addr_len, - gpr_slice *initial_str); -void grpc_test_set_initial_connect_string_function( - grpc_set_initial_connect_string_func func); - -/** Set a string to be sent once connected. Optionally reset addr. */ -void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len, - gpr_slice *connect_string); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */ diff --git a/src/core/lib/client_config/lb_policy.c b/src/core/lib/client_config/lb_policy.c deleted file mode 100644 index 3d23669ec2..0000000000 --- a/src/core/lib/client_config/lb_policy.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/lb_policy.h" - -#define WEAK_REF_BITS 16 - -void grpc_lb_policy_init(grpc_lb_policy *policy, - const grpc_lb_policy_vtable *vtable) { - policy->vtable = vtable; - gpr_atm_no_barrier_store(&policy->ref_pair, 1 << WEAK_REF_BITS); - policy->interested_parties = grpc_pollset_set_create(); -} - -#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG -#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_FUNC_PASS_ARGS(new_reason) , file, line, new_reason -#define REF_MUTATE_PASS_ARGS(purpose) , file, line, reason, purpose -#else -#define REF_FUNC_EXTRA_ARGS -#define REF_MUTATE_EXTRA_ARGS -#define REF_FUNC_PASS_ARGS(new_reason) -#define REF_MUTATE_PASS_ARGS(x) -#endif - -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); -#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "LB_POLICY: %p % 12s 0x%08x -> 0x%08x [%s]", c, purpose, old_val, - old_val + delta, reason); -#endif - return old_val; -} - -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")); -} - -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) { - policy->vtable->shutdown(exec_ctx, policy); - } - 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) { - 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) { - 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(policy->interested_parties); - policy->vtable->destroy(exec_ctx, policy); - } -} - -int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_pollset *pollset, - grpc_metadata_batch *initial_metadata, - grpc_connected_subchannel **target, - grpc_closure *on_complete) { - return policy->vtable->pick(exec_ctx, policy, pollset, initial_metadata, - target, on_complete); -} - -void grpc_lb_policy_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connected_subchannel **target) { - policy->vtable->cancel_pick(exec_ctx, policy, target); -} - -void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) { - policy->vtable->exit_idle(exec_ctx, policy); -} - -void grpc_lb_policy_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_closure *closure) { - policy->vtable->ping_one(exec_ctx, policy, closure); -} - -void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connectivity_state *state, - grpc_closure *closure) { - policy->vtable->notify_on_state_change(exec_ctx, policy, state, closure); -} - -grpc_connectivity_state grpc_lb_policy_check_connectivity( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy) { - return policy->vtable->check_connectivity(exec_ctx, policy); -} diff --git a/src/core/lib/client_config/lb_policy.h b/src/core/lib/client_config/lb_policy.h deleted file mode 100644 index a63e8e68df..0000000000 --- a/src/core/lib/client_config/lb_policy.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H - -#include "src/core/lib/client_config/subchannel.h" -#include "src/core/lib/transport/connectivity_state.h" - -/** A load balancing policy: specified by a vtable and a struct (which - is expected to be extended to contain some parameters) */ -typedef struct grpc_lb_policy grpc_lb_policy; -typedef struct grpc_lb_policy_vtable grpc_lb_policy_vtable; - -typedef void (*grpc_lb_completion)(void *cb_arg, grpc_subchannel *subchannel, - grpc_status_code status, const char *errmsg); - -struct grpc_lb_policy { - const grpc_lb_policy_vtable *vtable; - gpr_atm ref_pair; - /* owned pointer to interested parties in load balancing decisions */ - grpc_pollset_set *interested_parties; -}; - -struct grpc_lb_policy_vtable { - void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - - void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - - /** implement grpc_lb_policy_pick */ - int (*pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_pollset *pollset, grpc_metadata_batch *initial_metadata, - grpc_connected_subchannel **target, grpc_closure *on_complete); - void (*cancel_pick)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connected_subchannel **target); - - void (*ping_one)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_closure *closure); - - /** try to enter a READY connectivity state */ - void (*exit_idle)(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - - /** check the current connectivity of the lb_policy */ - grpc_connectivity_state (*check_connectivity)(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy); - - /** call notify when the connectivity state of a channel changes from *state. - Updates *state with the new state of the policy */ - void (*notify_on_state_change)(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connectivity_state *state, - grpc_closure *closure); -}; - -/*#define GRPC_LB_POLICY_REFCOUNT_DEBUG*/ -#ifdef GRPC_LB_POLICY_REFCOUNT_DEBUG -#define GRPC_LB_POLICY_REF(p, r) \ - grpc_lb_policy_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_LB_POLICY_UNREF(exec_ctx, p, r) \ - grpc_lb_policy_unref((exec_ctx), (p), __FILE__, __LINE__, (r)) -#define GRPC_LB_POLICY_WEAK_REF(p, r) \ - 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); -#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); -#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); - -/** Given initial metadata in \a initial_metadata, find an appropriate - target for this rpc, and 'return' it by calling \a on_complete after setting - \a target. - Picking can be asynchronous. Any IO should be done under \a pollset. */ -int grpc_lb_policy_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_pollset *pollset, - grpc_metadata_batch *initial_metadata, - grpc_connected_subchannel **target, - grpc_closure *on_complete); - -void grpc_lb_policy_ping_one(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_closure *closure); - -void grpc_lb_policy_cancel_pick(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy, - grpc_connected_subchannel **target); - -void grpc_lb_policy_exit_idle(grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - -void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, - grpc_lb_policy *policy, - grpc_connectivity_state *state, - grpc_closure *closure); - -grpc_connectivity_state grpc_lb_policy_check_connectivity( - grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H */ diff --git a/src/core/lib/client_config/lb_policy_factory.c b/src/core/lib/client_config/lb_policy_factory.c deleted file mode 100644 index 92e1f5f08b..0000000000 --- a/src/core/lib/client_config/lb_policy_factory.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/lb_policy_factory.h" - -void grpc_lb_policy_factory_ref(grpc_lb_policy_factory* factory) { - factory->vtable->ref(factory); -} - -void grpc_lb_policy_factory_unref(grpc_lb_policy_factory* factory) { - factory->vtable->unref(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; - return factory->vtable->create_lb_policy(exec_ctx, factory, args); -} diff --git a/src/core/lib/client_config/lb_policy_factory.h b/src/core/lib/client_config/lb_policy_factory.h deleted file mode 100644 index 6f21912821..0000000000 --- a/src/core/lib/client_config/lb_policy_factory.h +++ /dev/null @@ -1,78 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H - -#include "src/core/lib/client_config/lb_policy.h" -#include "src/core/lib/client_config/subchannel_factory.h" -#include "src/core/lib/iomgr/resolve_address.h" - -#include "src/core/lib/iomgr/exec_ctx.h" - -typedef struct grpc_lb_policy_factory grpc_lb_policy_factory; -typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable; - -/** grpc_lb_policy provides grpc_client_config objects to grpc_channel - objects */ -struct grpc_lb_policy_factory { - const grpc_lb_policy_factory_vtable *vtable; -}; - -typedef struct grpc_lb_policy_args { - grpc_resolved_addresses *addresses; - grpc_subchannel_factory *subchannel_factory; -} grpc_lb_policy_args; - -struct grpc_lb_policy_factory_vtable { - 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); - - /** Name for the LB policy this factory implements */ - 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); - -/** 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); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H */ diff --git a/src/core/lib/client_config/lb_policy_registry.c b/src/core/lib/client_config/lb_policy_registry.c deleted file mode 100644 index af396362a1..0000000000 --- a/src/core/lib/client_config/lb_policy_registry.c +++ /dev/null @@ -1,83 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/lb_policy_registry.h" - -#include - -#define MAX_POLICIES 10 - -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; } - -void grpc_lb_policy_registry_shutdown(void) { - int i; - for (i = 0; i < g_number_of_lb_policies; i++) { - grpc_lb_policy_factory_unref(g_all_of_the_lb_policies[i]); - } -} - -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 != strcmp(factory->vtable->name, - g_all_of_the_lb_policies[i]->vtable->name)); - } - GPR_ASSERT(g_number_of_lb_policies != MAX_POLICIES); - grpc_lb_policy_factory_ref(factory); - g_all_of_the_lb_policies[g_number_of_lb_policies++] = factory; -} - -static grpc_lb_policy_factory *lookup_factory(const char *name) { - int i; - - if (name == NULL) return NULL; - - for (i = 0; i < g_number_of_lb_policies; i++) { - if (0 == strcmp(name, g_all_of_the_lb_policies[i]->vtable->name)) { - return g_all_of_the_lb_policies[i]; - } - } - - return NULL; -} - -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/lib/client_config/lb_policy_registry.h b/src/core/lib/client_config/lb_policy_registry.h deleted file mode 100644 index 4b8495d8a1..0000000000 --- a/src/core/lib/client_config/lb_policy_registry.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H - -#include "src/core/lib/client_config/lb_policy_factory.h" -#include "src/core/lib/iomgr/exec_ctx.h" - -/** Initialize the registry and set \a default_factory as the factory to be - * returned when no name is provided in a lookup */ -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); - -/** 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); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */ diff --git a/src/core/lib/client_config/resolver.c b/src/core/lib/client_config/resolver.c deleted file mode 100644 index b9eef5575f..0000000000 --- a/src/core/lib/client_config/resolver.c +++ /dev/null @@ -1,82 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/resolver.h" - -void grpc_resolver_init(grpc_resolver *resolver, - const grpc_resolver_vtable *vtable) { - resolver->vtable = vtable; - gpr_ref_init(&resolver->refs, 1); -} - -#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG -void grpc_resolver_ref(grpc_resolver *resolver, grpc_closure_list *closure_list, - const char *file, int line, const char *reason) { - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p ref %d -> %d %s", - resolver, (int)resolver->refs.count, (int)resolver->refs.count + 1, - reason); -#else -void grpc_resolver_ref(grpc_resolver *resolver) { -#endif - gpr_ref(&resolver->refs); -} - -#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG -void grpc_resolver_unref(grpc_resolver *resolver, - grpc_closure_list *closure_list, const char *file, - int line, const char *reason) { - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "RESOLVER:%p unref %d -> %d %s", - resolver, (int)resolver->refs.count, (int)resolver->refs.count - 1, - reason); -#else -void grpc_resolver_unref(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) { -#endif - if (gpr_unref(&resolver->refs)) { - resolver->vtable->destroy(exec_ctx, resolver); - } -} - -void grpc_resolver_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) { - resolver->vtable->shutdown(exec_ctx, resolver); -} - -void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver) { - resolver->vtable->channel_saw_error(exec_ctx, resolver); -} - -void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_client_config **target_config, - grpc_closure *on_complete) { - resolver->vtable->next(exec_ctx, resolver, target_config, on_complete); -} diff --git a/src/core/lib/client_config/resolver.h b/src/core/lib/client_config/resolver.h deleted file mode 100644 index cf0bb2bc7a..0000000000 --- a/src/core/lib/client_config/resolver.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H - -#include "src/core/lib/client_config/client_config.h" -#include "src/core/lib/client_config/subchannel.h" -#include "src/core/lib/iomgr/iomgr.h" - -typedef struct grpc_resolver grpc_resolver; -typedef struct grpc_resolver_vtable grpc_resolver_vtable; - -/** grpc_resolver provides grpc_client_config objects to grpc_channel - objects */ -struct grpc_resolver { - const grpc_resolver_vtable *vtable; - gpr_refcount refs; -}; - -struct grpc_resolver_vtable { - void (*destroy)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); - void (*shutdown)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); - void (*channel_saw_error)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver); - void (*next)(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_client_config **target_config, grpc_closure *on_complete); -}; - -#ifdef GRPC_RESOLVER_REFCOUNT_DEBUG -#define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_RESOLVER_UNREF(cl, p, r) \ - grpc_resolver_unref((cl), (p), __FILE__, __LINE__, (r)) -void grpc_resolver_ref(grpc_resolver *policy, const char *file, int line, - const char *reason); -void grpc_resolver_unref(grpc_resolver *policy, grpc_closure_list *closure_list, - const char *file, int line, const char *reason); -#else -#define GRPC_RESOLVER_REF(p, r) grpc_resolver_ref((p)) -#define GRPC_RESOLVER_UNREF(cl, p, r) grpc_resolver_unref((cl), (p)) -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); - -void grpc_resolver_shutdown(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. */ -void grpc_resolver_channel_saw_error(grpc_exec_ctx *exec_ctx, - grpc_resolver *resolver); - -/** Get the next client config. Called by the channel to fetch a new - configuration. Expected to set *target_config with a new configuration, - and then schedule on_complete for execution. - - If resolution is fatally broken, set *target_config to NULL and - schedule on_complete. */ -void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, - grpc_client_config **target_config, - grpc_closure *on_complete); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H */ diff --git a/src/core/lib/client_config/resolver_factory.c b/src/core/lib/client_config/resolver_factory.c deleted file mode 100644 index 001fa28536..0000000000 --- a/src/core/lib/client_config/resolver_factory.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/resolver_factory.h" - -void grpc_resolver_factory_ref(grpc_resolver_factory* factory) { - factory->vtable->ref(factory); -} - -void grpc_resolver_factory_unref(grpc_resolver_factory* factory) { - factory->vtable->unref(factory); -} - -/** Create a resolver instance for a name */ -grpc_resolver* grpc_resolver_factory_create_resolver( - grpc_resolver_factory* factory, grpc_resolver_args* args) { - if (factory == NULL) return NULL; - return factory->vtable->create_resolver(factory, args); -} - -char* grpc_resolver_factory_get_default_authority( - grpc_resolver_factory* factory, grpc_uri* uri) { - if (factory == NULL) return NULL; - return factory->vtable->get_default_authority(factory, uri); -} diff --git a/src/core/lib/client_config/resolver_factory.h b/src/core/lib/client_config/resolver_factory.h deleted file mode 100644 index a5bca06475..0000000000 --- a/src/core/lib/client_config/resolver_factory.h +++ /dev/null @@ -1,82 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H - -#include "src/core/lib/client_config/resolver.h" -#include "src/core/lib/client_config/subchannel_factory.h" -#include "src/core/lib/client_config/uri_parser.h" - -typedef struct grpc_resolver_factory grpc_resolver_factory; -typedef struct grpc_resolver_factory_vtable grpc_resolver_factory_vtable; - -/** grpc_resolver provides grpc_client_config objects to grpc_channel - objects */ -struct grpc_resolver_factory { - const grpc_resolver_factory_vtable *vtable; -}; - -typedef struct grpc_resolver_args { - grpc_uri *uri; - grpc_subchannel_factory *subchannel_factory; -} grpc_resolver_args; - -struct grpc_resolver_factory_vtable { - void (*ref)(grpc_resolver_factory *factory); - void (*unref)(grpc_resolver_factory *factory); - - /** Implementation of grpc_resolver_factory_create_resolver */ - grpc_resolver *(*create_resolver)(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); - - /** URI scheme that this factory implements */ - const char *scheme; -}; - -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_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); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H */ diff --git a/src/core/lib/client_config/resolver_registry.c b/src/core/lib/client_config/resolver_registry.c deleted file mode 100644 index 5f3db273b5..0000000000 --- a/src/core/lib/client_config/resolver_registry.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/resolver_registry.h" - -#include - -#include -#include -#include - -#define MAX_RESOLVERS 10 - -static grpc_resolver_factory *g_all_of_the_resolvers[MAX_RESOLVERS]; -static int g_number_of_resolvers = 0; - -static char *g_default_resolver_prefix; - -void grpc_resolver_registry_init(const char *default_resolver_prefix) { - g_number_of_resolvers = 0; - g_default_resolver_prefix = gpr_strdup(default_resolver_prefix); -} - -void grpc_resolver_registry_shutdown(void) { - int i; - for (i = 0; i < g_number_of_resolvers; i++) { - grpc_resolver_factory_unref(g_all_of_the_resolvers[i]); - } - gpr_free(g_default_resolver_prefix); -} - -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, - g_all_of_the_resolvers[i]->vtable->scheme)); - } - GPR_ASSERT(g_number_of_resolvers != MAX_RESOLVERS); - grpc_resolver_factory_ref(factory); - g_all_of_the_resolvers[g_number_of_resolvers++] = factory; -} - -static grpc_resolver_factory *lookup_factory(const char *name) { - int i; - - for (i = 0; i < g_number_of_resolvers; i++) { - if (0 == strcmp(name, g_all_of_the_resolvers[i]->vtable->scheme)) { - return g_all_of_the_resolvers[i]; - } - } - - return NULL; -} - -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; - return lookup_factory(uri->scheme); -} - -static grpc_resolver_factory *resolve_factory(const char *target, - grpc_uri **uri) { - char *tmp; - grpc_resolver_factory *factory = NULL; - - GPR_ASSERT(uri != NULL); - *uri = grpc_uri_parse(target, 1); - factory = lookup_factory_by_uri(*uri); - if (factory == NULL) { - if (g_default_resolver_prefix != NULL) { - grpc_uri_destroy(*uri); - gpr_asprintf(&tmp, "%s%s", g_default_resolver_prefix, target); - *uri = grpc_uri_parse(tmp, 1); - factory = lookup_factory_by_uri(*uri); - if (factory == NULL) { - grpc_uri_destroy(grpc_uri_parse(target, 0)); - grpc_uri_destroy(grpc_uri_parse(tmp, 0)); - gpr_log(GPR_ERROR, "don't know how to resolve '%s' or '%s'", target, - tmp); - } - gpr_free(tmp); - } else { - grpc_uri_destroy(grpc_uri_parse(target, 0)); - gpr_log(GPR_ERROR, "don't know how to resolve '%s'", target); - } - } - return factory; -} - -grpc_resolver *grpc_resolver_create( - const char *target, grpc_subchannel_factory *subchannel_factory) { - grpc_uri *uri = NULL; - grpc_resolver_factory *factory = resolve_factory(target, &uri); - grpc_resolver *resolver; - grpc_resolver_args args; - memset(&args, 0, sizeof(args)); - args.uri = uri; - args.subchannel_factory = subchannel_factory; - resolver = grpc_resolver_factory_create_resolver(factory, &args); - grpc_uri_destroy(uri); - return resolver; -} - -char *grpc_get_default_authority(const char *target) { - grpc_uri *uri = NULL; - grpc_resolver_factory *factory = resolve_factory(target, &uri); - char *authority = grpc_resolver_factory_get_default_authority(factory, uri); - grpc_uri_destroy(uri); - return authority; -} diff --git a/src/core/lib/client_config/resolver_registry.h b/src/core/lib/client_config/resolver_registry.h deleted file mode 100644 index 36c4f2fe03..0000000000 --- a/src/core/lib/client_config/resolver_registry.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H - -#include "src/core/lib/client_config/resolver_factory.h" - -void grpc_resolver_registry_init(const char *default_prefix); -void grpc_resolver_registry_shutdown(void); - -/** 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); - -/** Create a resolver given \a target. - First tries to parse \a target as a URI. If this succeeds, tries - to locate a registered resolver factory based on the URI scheme. - If parsing or location fails, prefixes default_prefix from - grpc_resolver_registry_init to target, and tries again (if default_prefix - was not NULL). - If a resolver factory was found, use it to instantiate a resolver and - return it. - If a resolver factory was not found, return NULL. */ -grpc_resolver *grpc_resolver_create( - const char *target, grpc_subchannel_factory *subchannel_factory); - -/** 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); - -/** 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(const char *target); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H */ diff --git a/src/core/lib/client_config/subchannel.c b/src/core/lib/client_config/subchannel.c deleted file mode 100644 index 47c53a16ba..0000000000 --- a/src/core/lib/client_config/subchannel.c +++ /dev/null @@ -1,678 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/subchannel.h" - -#include - -#include -#include - -#include "src/core/lib/channel/channel_args.h" -#include "src/core/lib/channel/client_channel.h" -#include "src/core/lib/channel/connected_channel.h" -#include "src/core/lib/client_config/initial_connect_string.h" -#include "src/core/lib/client_config/subchannel_index.h" -#include "src/core/lib/iomgr/timer.h" -#include "src/core/lib/profiling/timers.h" -#include "src/core/lib/support/backoff.h" -#include "src/core/lib/surface/channel.h" -#include "src/core/lib/surface/channel_init.h" -#include "src/core/lib/transport/connectivity_state.h" - -#define INTERNAL_REF_BITS 16 -#define STRONG_REF_MASK (~(gpr_atm)((1 << INTERNAL_REF_BITS) - 1)) - -#define GRPC_SUBCHANNEL_MIN_CONNECT_TIMEOUT_SECONDS 20 -#define GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS 1 -#define GRPC_SUBCHANNEL_RECONNECT_BACKOFF_MULTIPLIER 1.6 -#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( \ - &(subchannel)->connected_subchannel))) - -typedef struct { - grpc_closure closure; - 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_closure closure; - struct external_state_watcher *next; - struct external_state_watcher *prev; -} external_state_watcher; - -struct grpc_subchannel { - grpc_connector *connector; - - /** refcount - - lower INTERNAL_REF_BITS bits are for internal references: - these do not keep the subchannel open. - - upper remaining bits are for public references: these do - keep the subchannel open */ - gpr_atm ref_pair; - - /** non-transport related channel filters */ - const grpc_channel_filter **filters; - size_t num_filters; - /** channel arguments */ - grpc_channel_args *args; - /** address to connect to */ - struct sockaddr *addr; - size_t addr_len; - - grpc_subchannel_key *key; - - /** initial string to send to peer */ - gpr_slice initial_connect_string; - - /** set during connection */ - grpc_connect_out_args connecting_result; - - /** callback for connection finishing */ - grpc_closure connected; - - /** pollset_set tracking who's interested in a connection - being setup */ - grpc_pollset_set *pollset_set; - - /** active connection, or null; of type grpc_connected_subchannel */ - gpr_atm connected_subchannel; - - /** mutex protecting remaining elements */ - gpr_mu mu; - - /** have we seen a disconnection? */ - int disconnected; - /** are we connecting */ - int connecting; - /** connectivity state tracking */ - grpc_connectivity_state_tracker state_tracker; - - external_state_watcher root_external_state_watcher; - - /** next connect attempt time */ - gpr_timespec next_attempt; - /** backoff state */ - gpr_backoff backoff_state; - /** do we have an active alarm? */ - int have_alarm; - /** our alarm */ - grpc_timer alarm; - /** current random value */ - uint32_t random; -}; - -struct grpc_subchannel_call { - grpc_connected_subchannel *connection; -}; - -#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) - -static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *subchannel, - bool iomgr_success); - -#ifdef GRPC_STREAM_REFCOUNT_DEBUG -#define REF_REASON reason -#define REF_LOG(name, p) \ - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p ref %d -> %d %s", \ - (name), (p), (p)->refs.count, (p)->refs.count + 1, reason) -#define UNREF_LOG(name, p) \ - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, "%s: %p unref %d -> %d %s", \ - (name), (p), (p)->refs.count, (p)->refs.count - 1, reason) -#define REF_MUTATE_EXTRA_ARGS \ - GRPC_SUBCHANNEL_REF_EXTRA_ARGS, const char *purpose -#define REF_MUTATE_PURPOSE(x) , file, line, reason, x -#else -#define REF_REASON "" -#define REF_LOG(name, p) \ - do { \ - } while (0) -#define UNREF_LOG(name, p) \ - do { \ - } while (0) -#define REF_MUTATE_EXTRA_ARGS -#define REF_MUTATE_PURPOSE(x) -#endif - -/* - * connection implementation - */ - -static void connection_destroy(grpc_exec_ctx *exec_ctx, void *arg, - bool success) { - grpc_connected_subchannel *c = arg; - grpc_channel_stack_destroy(exec_ctx, CHANNEL_STACK_FROM_CONNECTION(c)); - gpr_free(c); -} - -void grpc_connected_subchannel_ref( - grpc_connected_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { - GRPC_CHANNEL_STACK_REF(CHANNEL_STACK_FROM_CONNECTION(c), REF_REASON); -} - -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); -} - -/* - * grpc_subchannel implementation - */ - -static void subchannel_destroy(grpc_exec_ctx *exec_ctx, void *arg, - bool success) { - grpc_subchannel *c = arg; - gpr_free((void *)c->filters); - grpc_channel_args_destroy(c->args); - gpr_free(c->addr); - gpr_slice_unref(c->initial_connect_string); - grpc_connectivity_state_destroy(exec_ctx, &c->state_tracker); - grpc_connector_unref(exec_ctx, c->connector); - grpc_pollset_set_destroy(c->pollset_set); - grpc_subchannel_key_destroy(exec_ctx, c->key); - gpr_free(c); -} - -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); -#ifdef GRPC_STREAM_REFCOUNT_DEBUG - gpr_log(file, line, GPR_LOG_SEVERITY_DEBUG, - "SUBCHANNEL: %p % 12s 0x%08x -> 0x%08x [%s]", c, purpose, old_val, - old_val + delta, reason); -#endif - return old_val; -} - -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")); - GPR_ASSERT((old_refs & STRONG_REF_MASK) != 0); - return c; -} - -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; - for (;;) { - gpr_atm old_refs = gpr_atm_acq_load(&c->ref_pair); - if (old_refs >= (1 << INTERNAL_REF_BITS)) { - gpr_atm new_refs = old_refs + (1 << INTERNAL_REF_BITS); - if (gpr_atm_rel_cas(&c->ref_pair, old_refs, new_refs)) { - return c; - } - } else { - return NULL; - } - } -} - -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); - c->disconnected = 1; - grpc_connector_shutdown(exec_ctx, c->connector); - con = GET_CONNECTED_SUBCHANNEL(c, no_barrier); - if (con != NULL) { - GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, con, "connection"); - gpr_atm_no_barrier_store(&c->connected_subchannel, 0xdeadbeef); - } - gpr_mu_unlock(&c->mu); -} - -void grpc_subchannel_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 - (gpr_atm)(1 << INTERNAL_REF_BITS), - 1 REF_MUTATE_PURPOSE("STRONG_UNREF")); - if ((old_refs & STRONG_REF_MASK) == (1 << INTERNAL_REF_BITS)) { - disconnect(exec_ctx, c); - } - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "strong-unref"); -} - -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_exec_ctx_enqueue(exec_ctx, grpc_closure_create(subchannel_destroy, c), - true, NULL); - } -} - -static uint32_t random_seed() { - return (uint32_t)(gpr_time_to_millis(gpr_now(GPR_CLOCK_MONOTONIC))); -} - -grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, - grpc_connector *connector, - grpc_subchannel_args *args) { - grpc_subchannel_key *key = grpc_subchannel_key_create(connector, args); - grpc_subchannel *c = grpc_subchannel_index_find(exec_ctx, key); - if (c) { - grpc_subchannel_key_destroy(exec_ctx, key); - return c; - } - - c = gpr_malloc(sizeof(*c)); - memset(c, 0, 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 = 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->addr = gpr_malloc(args->addr_len); - memcpy(c->addr, args->addr, args->addr_len); - c->pollset_set = grpc_pollset_set_create(); - c->addr_len = args->addr_len; - grpc_set_initial_connect_string(&c->addr, &c->addr_len, - &c->initial_connect_string); - c->args = grpc_channel_args_copy(args->args); - c->random = random_seed(); - 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); - grpc_connectivity_state_init(&c->state_tracker, GRPC_CHANNEL_IDLE, - "subchannel"); - gpr_backoff_init(&c->backoff_state, - GRPC_SUBCHANNEL_RECONNECT_BACKOFF_MULTIPLIER, - GRPC_SUBCHANNEL_RECONNECT_JITTER, - GRPC_SUBCHANNEL_INITIAL_CONNECT_BACKOFF_SECONDS * 1000, - GRPC_SUBCHANNEL_RECONNECT_MAX_BACKOFF_SECONDS * 1000); - if (c->args) { - for (size_t i = 0; i < c->args->num_args; i++) { - if (0 == strcmp(c->args->args[i].key, - "grpc.testing.fixed_reconnect_backoff")) { - GPR_ASSERT(c->args->args[i].type == GRPC_ARG_INTEGER); - gpr_backoff_init(&c->backoff_state, 1.0, 0.0, - c->args->args[i].value.integer, - c->args->args[i].value.integer); - } - } - } - gpr_mu_init(&c->mu); - - return grpc_subchannel_index_register(exec_ctx, key, c); -} - -static void continue_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { - grpc_connect_in_args args; - - args.interested_parties = c->pollset_set; - args.addr = c->addr; - args.addr_len = c->addr_len; - args.deadline = c->next_attempt; - args.channel_args = c->args; - args.initial_connect_string = c->initial_connect_string; - - grpc_connectivity_state_set(exec_ctx, &c->state_tracker, - GRPC_CHANNEL_CONNECTING, "state_change"); - grpc_connector_connect(exec_ctx, c->connector, &args, &c->connecting_result, - &c->connected); -} - -static void start_connect(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) { - c->next_attempt = - gpr_backoff_begin(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); - continue_connect(exec_ctx, c); -} - -grpc_connectivity_state grpc_subchannel_check_connectivity(grpc_subchannel *c) { - grpc_connectivity_state state; - gpr_mu_lock(&c->mu); - state = grpc_connectivity_state_check(&c->state_tracker); - gpr_mu_unlock(&c->mu); - return state; -} - -static void on_external_state_watcher_done(grpc_exec_ctx *exec_ctx, void *arg, - bool success) { - external_state_watcher *w = arg; - grpc_closure *follow_up = w->notify; - if (w->pollset_set != NULL) { - grpc_pollset_set_del_pollset_set(exec_ctx, w->subchannel->pollset_set, - w->pollset_set); - } - gpr_mu_lock(&w->subchannel->mu); - w->next->prev = w->prev; - w->prev->next = w->next; - gpr_mu_unlock(&w->subchannel->mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, w->subchannel, "external_state_watcher"); - gpr_free(w); - follow_up->cb(exec_ctx, follow_up->cb_arg, success); -} - -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; - - if (state == NULL) { - 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); - } - } - gpr_mu_unlock(&c->mu); - } else { - w = 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); - if (interested_parties != NULL) { - grpc_pollset_set_add_pollset_set(exec_ctx, c->pollset_set, - interested_parties); - } - GRPC_SUBCHANNEL_WEAK_REF(c, "external_state_watcher"); - gpr_mu_lock(&c->mu); - w->next = &c->root_external_state_watcher; - w->prev = w->next->prev; - w->next->prev = w->prev->next = w; - if (grpc_connectivity_state_notify_on_state_change( - exec_ctx, &c->state_tracker, state, &w->closure)) { - c->connecting = 1; - /* released by connection */ - GRPC_SUBCHANNEL_WEAK_REF(c, "connecting"); - start_connect(exec_ctx, c); - } - gpr_mu_unlock(&c->mu); - } -} - -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); - 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, - bool iomgr_success) { - state_watcher *sw = p; - grpc_subchannel *c = sw->subchannel; - gpr_mu *mu = &c->mu; - - gpr_mu_lock(mu); - - /* if we failed just leave this closure */ - if (iomgr_success) { - if (sw->connectivity_state == GRPC_CHANNEL_TRANSIENT_FAILURE) { - /* any errors on a subchannel ==> we're done, create a new one */ - sw->connectivity_state = GRPC_CHANNEL_FATAL_FAILURE; - } - grpc_connectivity_state_set(exec_ctx, &c->state_tracker, - sw->connectivity_state, "reflect_child"); - if (sw->connectivity_state != GRPC_CHANNEL_FATAL_FAILURE) { - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, GET_CONNECTED_SUBCHANNEL(c, no_barrier), NULL, - &sw->connectivity_state, &sw->closure); - GRPC_SUBCHANNEL_WEAK_REF(c, "state_watcher"); - sw = NULL; - } - } - - gpr_mu_unlock(mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "state_watcher"); - 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_channel_element *elem; - memset(&op, 0, sizeof(op)); - op.connectivity_state = state; - op.on_connectivity_state_change = closure; - op.bind_pollset_set = interested_parties; - elem = grpc_channel_stack_element(CHANNEL_STACK_FROM_CONNECTION(con), 0); - elem->filter->start_transport_op(exec_ctx, elem, &op); -} - -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) { - 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_channel_element *elem; - memset(&op, 0, sizeof(op)); - 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 void 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 */ - con = grpc_channel_init_create_stack( - exec_ctx, GRPC_CLIENT_SUBCHANNEL, 0, c->connecting_result.channel_args, 1, - connection_destroy, NULL, c->connecting_result.transport); - stk = CHANNEL_STACK_FROM_CONNECTION(con); - memset(&c->connecting_result, 0, sizeof(c->connecting_result)); - - /* initialize state watcher */ - sw_subchannel = 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, - sw_subchannel); - - if (c->disconnected) { - gpr_free(sw_subchannel); - grpc_channel_stack_destroy(exec_ctx, stk); - gpr_free(con); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); - return; - } - - /* publish */ - /* TODO(ctiller): this full barrier seems to clear up a TSAN failure. - I'd have expected the rel_cas below to be enough, but - seemingly it's not. - Re-evaluate if we really need this. */ - gpr_atm_full_barrier(); - GPR_ASSERT(gpr_atm_rel_cas(&c->connected_subchannel, 0, (gpr_atm)con)); - c->connecting = 0; - - /* setup subchannel watching connected subchannel for changes; subchannel ref - for connecting is donated - to the state watcher */ - GRPC_SUBCHANNEL_WEAK_REF(c, "state_watcher"); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); - grpc_connected_subchannel_notify_on_state_change( - exec_ctx, con, c->pollset_set, &sw_subchannel->connectivity_state, - &sw_subchannel->closure); - - /* signal completion */ - grpc_connectivity_state_set(exec_ctx, &c->state_tracker, GRPC_CHANNEL_READY, - "connected"); -} - -static void on_alarm(grpc_exec_ctx *exec_ctx, void *arg, bool iomgr_success) { - grpc_subchannel *c = arg; - gpr_mu_lock(&c->mu); - c->have_alarm = 0; - if (c->disconnected) { - iomgr_success = 0; - } - if (iomgr_success) { - c->next_attempt = - gpr_backoff_step(&c->backoff_state, gpr_now(GPR_CLOCK_MONOTONIC)); - continue_connect(exec_ctx, c); - gpr_mu_unlock(&c->mu); - } else { - gpr_mu_unlock(&c->mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); - } -} - -static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg, - bool iomgr_success) { - grpc_subchannel *c = arg; - - GRPC_SUBCHANNEL_WEAK_REF(c, "connected"); - gpr_mu_lock(&c->mu); - if (c->connecting_result.transport != NULL) { - publish_transport_locked(exec_ctx, c); - } else if (c->disconnected) { - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); - } else { - gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC); - GPR_ASSERT(!c->have_alarm); - c->have_alarm = 1; - grpc_connectivity_state_set(exec_ctx, &c->state_tracker, - GRPC_CHANNEL_TRANSIENT_FAILURE, - "connect_failed"); - grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now); - } - gpr_mu_unlock(&c->mu); - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting"); -} - -/* - * grpc_subchannel_call implementation - */ - -static void subchannel_call_destroy(grpc_exec_ctx *exec_ctx, void *call, - bool success) { - grpc_subchannel_call *c = call; - GPR_TIMER_BEGIN("grpc_subchannel_call_unref.destroy", 0); - grpc_call_stack_destroy(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c)); - GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, c->connection, "subchannel_call"); - gpr_free(c); - GPR_TIMER_END("grpc_subchannel_call_unref.destroy", 0); -} - -void grpc_subchannel_call_ref( - 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 - GRPC_SUBCHANNEL_REF_EXTRA_ARGS) { - GRPC_CALL_STACK_UNREF(exec_ctx, SUBCHANNEL_CALL_TO_CALL_STACK(c), REF_REASON); -} - -char *grpc_subchannel_call_get_peer(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *call) { - grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); - grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); - return top_elem->filter->get_peer(exec_ctx, top_elem); -} - -void grpc_subchannel_call_process_op(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call *call, - grpc_transport_stream_op *op) { - grpc_call_stack *call_stack = SUBCHANNEL_CALL_TO_CALL_STACK(call); - grpc_call_element *top_elem = grpc_call_stack_element(call_stack, 0); - top_elem->filter->start_transport_stream_op(exec_ctx, top_elem, op); -} - -grpc_connected_subchannel *grpc_subchannel_get_connected_subchannel( - grpc_subchannel *c) { - return GET_CONNECTED_SUBCHANNEL(c, acq); -} - -grpc_subchannel_call *grpc_connected_subchannel_create_call( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *con, - grpc_pollset *pollset) { - grpc_channel_stack *chanstk = CHANNEL_STACK_FROM_CONNECTION(con); - grpc_subchannel_call *call = - gpr_malloc(sizeof(grpc_subchannel_call) + chanstk->call_stack_size); - grpc_call_stack *callstk = SUBCHANNEL_CALL_TO_CALL_STACK(call); - call->connection = con; - GRPC_CONNECTED_SUBCHANNEL_REF(con, "subchannel_call"); - grpc_call_stack_init(exec_ctx, chanstk, 1, subchannel_call_destroy, call, - NULL, NULL, callstk); - grpc_call_stack_set_pollset(exec_ctx, callstk, pollset); - return call; -} - -grpc_call_stack *grpc_subchannel_call_get_call_stack( - grpc_subchannel_call *subchannel_call) { - return SUBCHANNEL_CALL_TO_CALL_STACK(subchannel_call); -} diff --git a/src/core/lib/client_config/subchannel.h b/src/core/lib/client_config/subchannel.h deleted file mode 100644 index 68aeff39a1..0000000000 --- a/src/core/lib/client_config/subchannel.h +++ /dev/null @@ -1,174 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H - -#include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/client_config/connector.h" -#include "src/core/lib/transport/connectivity_state.h" - -/** A (sub-)channel that knows how to connect to exactly one target - address. Provides a target for load balancing. */ -typedef struct grpc_subchannel grpc_subchannel; -typedef struct grpc_connected_subchannel grpc_connected_subchannel; -typedef struct grpc_subchannel_call grpc_subchannel_call; -typedef struct grpc_subchannel_args grpc_subchannel_args; - -#ifdef GRPC_STREAM_REFCOUNT_DEBUG -#define GRPC_SUBCHANNEL_REF(p, r) \ - grpc_subchannel_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) \ - grpc_subchannel_ref_from_weak_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_UNREF(cl, p, r) \ - grpc_subchannel_unref((cl), (p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_WEAK_REF(p, r) \ - grpc_subchannel_weak_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_WEAK_UNREF(cl, p, r) \ - grpc_subchannel_weak_unref((cl), (p), __FILE__, __LINE__, (r)) -#define GRPC_CONNECTED_SUBCHANNEL_REF(p, r) \ - grpc_connected_subchannel_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_CONNECTED_SUBCHANNEL_UNREF(cl, p, r) \ - grpc_connected_subchannel_unref((cl), (p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_CALL_REF(p, r) \ - grpc_subchannel_call_ref((p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_CALL_UNREF(cl, p, r) \ - grpc_subchannel_call_unref((cl), (p), __FILE__, __LINE__, (r)) -#define GRPC_SUBCHANNEL_REF_EXTRA_ARGS \ - , const char *file, int line, const char *reason -#else -#define GRPC_SUBCHANNEL_REF(p, r) grpc_subchannel_ref((p)) -#define GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(p, r) \ - grpc_subchannel_ref_from_weak_ref((p)) -#define GRPC_SUBCHANNEL_UNREF(cl, p, r) grpc_subchannel_unref((cl), (p)) -#define GRPC_SUBCHANNEL_WEAK_REF(p, r) grpc_subchannel_weak_ref((p)) -#define GRPC_SUBCHANNEL_WEAK_UNREF(cl, p, r) \ - grpc_subchannel_weak_unref((cl), (p)) -#define GRPC_CONNECTED_SUBCHANNEL_REF(p, r) grpc_connected_subchannel_ref((p)) -#define GRPC_CONNECTED_SUBCHANNEL_UNREF(cl, p, r) \ - grpc_connected_subchannel_unref((cl), (p)) -#define GRPC_SUBCHANNEL_CALL_REF(p, r) grpc_subchannel_call_ref((p)) -#define GRPC_SUBCHANNEL_CALL_UNREF(cl, p, r) \ - grpc_subchannel_call_unref((cl), (p)) -#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_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_REF_EXTRA_ARGS); -void 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_REF_EXTRA_ARGS); - -/** construct a subchannel call */ -grpc_subchannel_call *grpc_connected_subchannel_create_call( - grpc_exec_ctx *exec_ctx, grpc_connected_subchannel *connected_subchannel, - grpc_pollset *pollset); - -/** 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); - -/** poll the current connectivity state of a channel */ -grpc_connectivity_state grpc_subchannel_check_connectivity( - grpc_subchannel *channel); - -/** call notify when the connectivity state of a channel changes 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); -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); - -/** 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); - -/** 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 *op); - -/** continue querying for peer */ -char *grpc_subchannel_call_get_peer(grpc_exec_ctx *exec_ctx, - 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; - /** 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; - /** Address to connect to */ - struct sockaddr *addr; - size_t addr_len; -}; - -/** create a subchannel given a connector */ -grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, - grpc_connector *connector, - grpc_subchannel_args *args); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H */ diff --git a/src/core/lib/client_config/subchannel_factory.c b/src/core/lib/client_config/subchannel_factory.c deleted file mode 100644 index 541368ec96..0000000000 --- a/src/core/lib/client_config/subchannel_factory.c +++ /dev/null @@ -1,49 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/subchannel_factory.h" - -void grpc_subchannel_factory_ref(grpc_subchannel_factory* factory) { - factory->vtable->ref(factory); -} - -void grpc_subchannel_factory_unref(grpc_exec_ctx* exec_ctx, - grpc_subchannel_factory* factory) { - factory->vtable->unref(exec_ctx, factory); -} - -grpc_subchannel* grpc_subchannel_factory_create_subchannel( - grpc_exec_ctx* exec_ctx, grpc_subchannel_factory* factory, - grpc_subchannel_args* args) { - return factory->vtable->create_subchannel(exec_ctx, factory, args); -} diff --git a/src/core/lib/client_config/subchannel_factory.h b/src/core/lib/client_config/subchannel_factory.h deleted file mode 100644 index 96d68a2079..0000000000 --- a/src/core/lib/client_config/subchannel_factory.h +++ /dev/null @@ -1,66 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H - -#include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/client_config/subchannel.h" - -typedef struct grpc_subchannel_factory grpc_subchannel_factory; -typedef struct grpc_subchannel_factory_vtable grpc_subchannel_factory_vtable; - -/** Constructor for new configured channels. - Creating decorators around this type is encouraged to adapt behavior. */ -struct grpc_subchannel_factory { - const grpc_subchannel_factory_vtable *vtable; -}; - -struct grpc_subchannel_factory_vtable { - void (*ref)(grpc_subchannel_factory *factory); - void (*unref)(grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory); - grpc_subchannel *(*create_subchannel)(grpc_exec_ctx *exec_ctx, - grpc_subchannel_factory *factory, - grpc_subchannel_args *args); -}; - -void grpc_subchannel_factory_ref(grpc_subchannel_factory *factory); -void grpc_subchannel_factory_unref(grpc_exec_ctx *exec_ctx, - grpc_subchannel_factory *factory); - -/** Create a new grpc_subchannel */ -grpc_subchannel *grpc_subchannel_factory_create_subchannel( - grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory, - grpc_subchannel_args *args); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */ diff --git a/src/core/lib/client_config/subchannel_index.c b/src/core/lib/client_config/subchannel_index.c deleted file mode 100644 index 2c545002a2..0000000000 --- a/src/core/lib/client_config/subchannel_index.c +++ /dev/null @@ -1,262 +0,0 @@ -// -// -// Copyright 2016, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// - -#include "src/core/lib/client_config/subchannel_index.h" - -#include -#include - -#include -#include -#include - -#include "src/core/lib/channel/channel_args.h" - -// a map of subchannel_key --> subchannel, used for detecting connections -// to the same destination in order to share them -static gpr_avl g_subchannel_index; - -static gpr_mu g_mu; - -struct grpc_subchannel_key { - grpc_connector *connector; - grpc_subchannel_args args; -}; - -GPR_TLS_DECL(subchannel_index_exec_ctx); - -static void enter_ctx(grpc_exec_ctx *exec_ctx) { - GPR_ASSERT(gpr_tls_get(&subchannel_index_exec_ctx) == 0); - gpr_tls_set(&subchannel_index_exec_ctx, (intptr_t)exec_ctx); -} - -static void leave_ctx(grpc_exec_ctx *exec_ctx) { - GPR_ASSERT(gpr_tls_get(&subchannel_index_exec_ctx) == (intptr_t)exec_ctx); - gpr_tls_set(&subchannel_index_exec_ctx, 0); -} - -static grpc_exec_ctx *current_ctx() { - grpc_exec_ctx *c = (grpc_exec_ctx *)gpr_tls_get(&subchannel_index_exec_ctx); - GPR_ASSERT(c != NULL); - return c; -} - -static grpc_subchannel_key *create_key( - grpc_connector *connector, grpc_subchannel_args *args, - grpc_channel_args *(*copy_channel_args)(const grpc_channel_args *args)) { - grpc_subchannel_key *k = gpr_malloc(sizeof(*k)); - k->connector = grpc_connector_ref(connector); - k->args.filter_count = args->filter_count; - k->args.filters = gpr_malloc(sizeof(*k->args.filters) * k->args.filter_count); - memcpy((grpc_channel_filter *)k->args.filters, args->filters, - sizeof(*k->args.filters) * k->args.filter_count); - k->args.addr_len = args->addr_len; - k->args.addr = gpr_malloc(args->addr_len); - memcpy(k->args.addr, args->addr, k->args.addr_len); - k->args.args = copy_channel_args(args->args); - return k; -} - -grpc_subchannel_key *grpc_subchannel_key_create(grpc_connector *connector, - grpc_subchannel_args *args) { - return create_key(connector, args, grpc_channel_args_normalize); -} - -static grpc_subchannel_key *subchannel_key_copy(grpc_subchannel_key *k) { - return create_key(k->connector, &k->args, grpc_channel_args_copy); -} - -static int subchannel_key_compare(grpc_subchannel_key *a, - grpc_subchannel_key *b) { - int c = GPR_ICMP(a->connector, b->connector); - if (c != 0) return c; - c = GPR_ICMP(a->args.addr_len, b->args.addr_len); - if (c != 0) return c; - c = GPR_ICMP(a->args.filter_count, b->args.filter_count); - if (c != 0) return c; - c = memcmp(a->args.addr, b->args.addr, a->args.addr_len); - if (c != 0) return c; - c = memcmp(a->args.filters, b->args.filters, - a->args.filter_count * sizeof(*a->args.filters)); - if (c != 0) return c; - 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) { - grpc_connector_unref(exec_ctx, k->connector); - gpr_free(k->args.addr); - gpr_free((grpc_channel_args *)k->args.filters); - grpc_channel_args_destroy((grpc_channel_args *)k->args.args); - gpr_free(k); -} - -static void sck_avl_destroy(void *p) { - grpc_subchannel_key_destroy(current_ctx(), p); -} - -static void *sck_avl_copy(void *p) { return subchannel_key_copy(p); } - -static long sck_avl_compare(void *a, void *b) { - return subchannel_key_compare(a, b); -} - -static void scv_avl_destroy(void *p) { - GRPC_SUBCHANNEL_WEAK_UNREF(current_ctx(), p, "subchannel_index"); -} - -static void *scv_avl_copy(void *p) { - GRPC_SUBCHANNEL_WEAK_REF(p, "subchannel_index"); - return p; -} - -static const gpr_avl_vtable subchannel_avl_vtable = { - .destroy_key = sck_avl_destroy, - .copy_key = sck_avl_copy, - .compare_keys = sck_avl_compare, - .destroy_value = scv_avl_destroy, - .copy_value = scv_avl_copy}; - -void grpc_subchannel_index_init(void) { - g_subchannel_index = gpr_avl_create(&subchannel_avl_vtable); - gpr_mu_init(&g_mu); - gpr_tls_init(&subchannel_index_exec_ctx); -} - -void grpc_subchannel_index_shutdown(void) { - gpr_mu_destroy(&g_mu); - gpr_avl_unref(g_subchannel_index); - gpr_tls_destroy(&subchannel_index_exec_ctx); -} - -grpc_subchannel *grpc_subchannel_index_find(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key) { - enter_ctx(exec_ctx); - - // 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); - gpr_mu_unlock(&g_mu); - - grpc_subchannel *c = - GRPC_SUBCHANNEL_REF_FROM_WEAK_REF(gpr_avl_get(index, key), "index_find"); - gpr_avl_unref(index); - - leave_ctx(exec_ctx); - return c; -} - -grpc_subchannel *grpc_subchannel_index_register(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed) { - enter_ctx(exec_ctx); - - grpc_subchannel *c = NULL; - - while (c == NULL) { - // Compare and swap loop: - // - take a reference to the current index - gpr_mu_lock(&g_mu); - gpr_avl index = gpr_avl_ref(g_subchannel_index); - gpr_mu_unlock(&g_mu); - - // - Check to see if a subchannel already exists - c = gpr_avl_get(index, key); - if (c != NULL) { - // yes -> we're done - GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, constructed, "index_register"); - } else { - // no -> update the avl and compare/swap - gpr_avl updated = - gpr_avl_add(gpr_avl_ref(index), subchannel_key_copy(key), - GRPC_SUBCHANNEL_WEAK_REF(constructed, "index_register")); - - // it may happen (but it's expected to be unlikely) - // that some other thread has changed the index: - // compare/swap here to check that, and retry as necessary - gpr_mu_lock(&g_mu); - if (index.root == g_subchannel_index.root) { - GPR_SWAP(gpr_avl, updated, g_subchannel_index); - c = constructed; - } - gpr_mu_unlock(&g_mu); - - gpr_avl_unref(updated); - } - gpr_avl_unref(index); - } - - leave_ctx(exec_ctx); - - return c; -} - -void grpc_subchannel_index_unregister(grpc_exec_ctx *exec_ctx, - grpc_subchannel_key *key, - grpc_subchannel *constructed) { - enter_ctx(exec_ctx); - - bool done = false; - while (!done) { - // Compare and swap loop: - // - take a reference to the current index - gpr_mu_lock(&g_mu); - gpr_avl index = gpr_avl_ref(g_subchannel_index); - gpr_mu_unlock(&g_mu); - - // Check to see if this key still refers to the previously - // registered subchannel - grpc_subchannel *c = gpr_avl_get(index, key); - if (c != constructed) { - gpr_avl_unref(index); - break; - } - - // compare and swap the update (some other thread may have - // mutated the index behind us) - gpr_avl updated = gpr_avl_remove(gpr_avl_ref(index), key); - - gpr_mu_lock(&g_mu); - if (index.root == g_subchannel_index.root) { - GPR_SWAP(gpr_avl, updated, g_subchannel_index); - done = true; - } - gpr_mu_unlock(&g_mu); - - gpr_avl_unref(updated); - gpr_avl_unref(index); - } - - leave_ctx(exec_ctx); -} diff --git a/src/core/lib/client_config/subchannel_index.h b/src/core/lib/client_config/subchannel_index.h deleted file mode 100644 index bc5f03beb4..0000000000 --- a/src/core/lib/client_config/subchannel_index.h +++ /dev/null @@ -1,77 +0,0 @@ -/* - * - * Copyright 2016, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H - -#include "src/core/lib/client_config/connector.h" -#include "src/core/lib/client_config/subchannel.h" - -/** \file Provides an index of active subchannels so that they can be - shared amongst channels */ - -typedef struct grpc_subchannel_key grpc_subchannel_key; - -/** Create a key that can be used to uniquely identify a subchannel */ -grpc_subchannel_key *grpc_subchannel_key_create(grpc_connector *con, - grpc_subchannel_args *args); - -/** Destroy a subchannel 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); - -/** 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); - -/** 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); - -/** Initialize the subchannel index (global) */ -void grpc_subchannel_index_init(void); -/** Shutdown the subchannel index (global) */ -void grpc_subchannel_index_shutdown(void); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */ diff --git a/src/core/lib/client_config/uri_parser.c b/src/core/lib/client_config/uri_parser.c deleted file mode 100644 index b4ee763735..0000000000 --- a/src/core/lib/client_config/uri_parser.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/client_config/uri_parser.h" - -#include - -#include -#include -#include -#include - -/** 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, - int suppress_errors) { - char *line_prefix; - size_t pfx_len; - - if (!suppress_errors) { - gpr_asprintf(&line_prefix, "bad uri.%s: '", section); - pfx_len = strlen(line_prefix) + pos; - gpr_log(GPR_ERROR, "%s%s'", line_prefix, uri_text); - gpr_free(line_prefix); - - line_prefix = 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; -} - -/** Returns a copy of \a src[begin, end) */ -static char *copy_component(const char *src, size_t begin, size_t end) { - char *out = gpr_malloc(end - begin + 1); - memcpy(out, src + begin, end - begin); - out[end - begin] = 0; - return out; -} - -/** 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) { - /* pchar = unreserved / pct-encoded / sub-delims / ":" / "@" - * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" - * pct-encoded = "%" HEXDIG HEXDIG - * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" - / "*" / "+" / "," / ";" / "=" */ - char c = uri_text[i]; - if (((c >= 'A') && (c <= 'Z')) || ((c >= 'a') && (c <= 'z')) || - ((c >= '0') && (c <= '9')) || - (c == '-' || c == '.' || c == '_' || c == '~') || /* unreserved */ - (c == '!' || c == '$' || c == '&' || c == '\'' || c == '$' || c == '&' || - c == '(' || c == ')' || c == '*' || c == '+' || c == ',' || c == ';' || - c == '=') /* sub-delims */) { - return 1; - } - if (c == '%') { /* pct-encoded */ - size_t j; - if (uri_text[i + 1] == 0 || uri_text[i + 2] == 0) { - return NOT_SET; - } - for (j = i + 1; j < 2; j++) { - c = uri_text[j]; - if (!(((c >= '0') && (c <= '9')) || ((c >= 'a') && (c <= 'f')) || - ((c >= 'A') && (c <= 'F')))) { - return NOT_SET; - } - } - return 2; - } - return 0; -} - -/* *( pchar / "?" / "/" ) */ -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 */ - switch (advance) { - case 0: /* uri_text[i] isn't in pchar */ - /* maybe it's ? or / */ - if (uri_text[*i] == '?' || uri_text[*i] == '/') { - (*i)++; - break; - } else { - return 1; - } - GPR_UNREACHABLE_CODE(return 0); - default: - (*i) += advance; - break; - case NOT_SET: /* uri_text[i] introduces an invalid URI */ - return 0; - } - } - /* *i is the first uri_text position past the \a query production, maybe \0 */ - return 1; -} - -grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors) { - grpc_uri *uri; - size_t scheme_begin = 0; - size_t scheme_end = NOT_SET; - size_t authority_begin = NOT_SET; - size_t authority_end = NOT_SET; - size_t path_begin = NOT_SET; - size_t path_end = NOT_SET; - size_t query_begin = NOT_SET; - size_t query_end = NOT_SET; - size_t fragment_begin = NOT_SET; - size_t fragment_end = NOT_SET; - size_t i; - - for (i = scheme_begin; uri_text[i] != 0; i++) { - if (uri_text[i] == ':') { - scheme_end = i; - break; - } - if (uri_text[i] >= 'a' && uri_text[i] <= 'z') continue; - if (uri_text[i] >= 'A' && uri_text[i] <= 'Z') continue; - if (i != scheme_begin) { - if (uri_text[i] >= '0' && uri_text[i] <= '9') continue; - if (uri_text[i] == '+') continue; - if (uri_text[i] == '-') continue; - if (uri_text[i] == '.') continue; - } - break; - } - if (scheme_end == NOT_SET) { - return bad_uri(uri_text, i, "scheme", suppress_errors); - } - - if (uri_text[scheme_end + 1] == '/' && uri_text[scheme_end + 2] == '/') { - authority_begin = scheme_end + 3; - for (i = authority_begin; uri_text[i] != 0 && authority_end == NOT_SET; - i++) { - if (uri_text[i] == '/' || uri_text[i] == '?' || uri_text[i] == '#') { - authority_end = i; - } - } - if (authority_end == NOT_SET && uri_text[i] == 0) { - authority_end = i; - } - if (authority_end == NOT_SET) { - return bad_uri(uri_text, i, "authority", suppress_errors); - } - /* TODO(ctiller): parse the authority correctly */ - path_begin = authority_end; - } else { - path_begin = scheme_end + 1; - } - - for (i = path_begin; uri_text[i] != 0; i++) { - if (uri_text[i] == '?' || uri_text[i] == '#') { - path_end = i; - break; - } - } - if (path_end == NOT_SET && uri_text[i] == 0) { - path_end = i; - } - if (path_end == NOT_SET) { - return bad_uri(uri_text, i, "path", suppress_errors); - } - - if (uri_text[i] == '?') { - query_begin = ++i; - if (!parse_fragment_or_query(uri_text, &i)) { - return bad_uri(uri_text, i, "query", suppress_errors); - } else if (uri_text[i] != 0 && uri_text[i] != '#') { - /* We must be at the end or at the beginning of a fragment */ - return bad_uri(uri_text, i, "query", suppress_errors); - } - query_end = i; - } - if (uri_text[i] == '#') { - fragment_begin = ++i; - if (!parse_fragment_or_query(uri_text, &i)) { - return bad_uri(uri_text, i - fragment_end, "fragment", suppress_errors); - } else if (uri_text[i] != 0) { - /* We must be at the end */ - return bad_uri(uri_text, i, "fragment", suppress_errors); - } - fragment_end = i; - } - - uri = gpr_malloc(sizeof(*uri)); - memset(uri, 0, sizeof(*uri)); - uri->scheme = copy_component(uri_text, scheme_begin, scheme_end); - uri->authority = copy_component(uri_text, authority_begin, authority_end); - uri->path = copy_component(uri_text, path_begin, path_end); - uri->query = copy_component(uri_text, query_begin, query_end); - uri->fragment = copy_component(uri_text, fragment_begin, fragment_end); - - return uri; -} - -void grpc_uri_destroy(grpc_uri *uri) { - if (!uri) return; - gpr_free(uri->scheme); - gpr_free(uri->authority); - gpr_free(uri->path); - gpr_free(uri->query); - gpr_free(uri->fragment); - gpr_free(uri); -} diff --git a/src/core/lib/client_config/uri_parser.h b/src/core/lib/client_config/uri_parser.h deleted file mode 100644 index 4f8e809b2e..0000000000 --- a/src/core/lib/client_config/uri_parser.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H - -typedef struct { - char *scheme; - char *authority; - char *path; - char *query; - char *fragment; -} grpc_uri; - -/** parse a uri, return NULL on failure */ -grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors); - -/** destroy a uri */ -void grpc_uri_destroy(grpc_uri *uri); - -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H */ diff --git a/src/core/lib/iomgr/unix_sockets_posix.h b/src/core/lib/iomgr/unix_sockets_posix.h index 752cab85a5..22d6af5044 100644 --- a/src/core/lib/iomgr/unix_sockets_posix.h +++ b/src/core/lib/iomgr/unix_sockets_posix.h @@ -38,8 +38,8 @@ #include -#include "src/core/lib/client_config/resolver_factory.h" -#include "src/core/lib/client_config/uri_parser.h" +#include "src/core/ext/client_config/resolver_factory.h" +#include "src/core/ext/client_config/uri_parser.h" #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/iomgr/sockaddr.h" diff --git a/src/core/lib/surface/channel.c b/src/core/lib/surface/channel.c index 06f991b085..332f504507 100644 --- a/src/core/lib/surface/channel.c +++ b/src/core/lib/surface/channel.c @@ -40,7 +40,7 @@ #include #include -#include "src/core/lib/client_config/resolver_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/iomgr.h" #include "src/core/lib/support/string.h" #include "src/core/lib/surface/api_trace.h" diff --git a/src/core/lib/surface/channel.h b/src/core/lib/surface/channel.h index 640fd7e137..fc7c805db0 100644 --- a/src/core/lib/surface/channel.h +++ b/src/core/lib/surface/channel.h @@ -35,7 +35,7 @@ #define GRPC_CORE_LIB_SURFACE_CHANNEL_H #include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/client_config/subchannel_factory.h" +#include "src/core/ext/client_config/subchannel_factory.h" #include "src/core/lib/surface/channel_stack_type.h" grpc_channel *grpc_channel_create(grpc_exec_ctx *exec_ctx, const char *target, diff --git a/src/core/lib/surface/channel_connectivity.c b/src/core/lib/surface/channel_connectivity.c deleted file mode 100644 index 9a9ee422c2..0000000000 --- a/src/core/lib/surface/channel_connectivity.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/surface/channel.h" - -#include -#include - -#include "src/core/lib/channel/client_channel.h" -#include "src/core/lib/iomgr/timer.h" -#include "src/core/lib/surface/api_trace.h" -#include "src/core/lib/surface/completion_queue.h" - -grpc_connectivity_state grpc_channel_check_connectivity_state( - grpc_channel *channel, int try_to_connect) { - /* forward through to the underlying client channel */ - 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; - GRPC_API_TRACE( - "grpc_channel_check_connectivity_state(channel=%p, try_to_connect=%d)", 2, - (channel, try_to_connect)); - if (client_channel_elem->filter == &grpc_client_channel_filter) { - state = grpc_client_channel_check_connectivity_state( - &exec_ctx, client_channel_elem, try_to_connect); - grpc_exec_ctx_finish(&exec_ctx); - return state; - } - gpr_log(GPR_ERROR, - "grpc_channel_check_connectivity_state called on something that is " - "not a (u)client channel, but '%s'", - client_channel_elem->filter->name); - grpc_exec_ctx_finish(&exec_ctx); - return GRPC_CHANNEL_FATAL_FAILURE; -} - -typedef enum { - WAITING, - CALLING_BACK, - CALLING_BACK_AND_FINISHED, - CALLED_BACK -} callback_phase; - -typedef struct { - gpr_mu mu; - callback_phase phase; - int success; - grpc_closure on_complete; - grpc_timer alarm; - grpc_connectivity_state state; - grpc_completion_queue *cq; - grpc_cq_completion completion_storage; - grpc_channel *channel; - 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( - grpc_channel_get_channel_stack(w->channel)); - if (client_channel_elem->filter == &grpc_client_channel_filter) { - GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, w->channel, - "watch_channel_connectivity"); - } else { - abort(); - } - gpr_mu_destroy(&w->mu); - gpr_free(w); -} - -static void finished_completion(grpc_exec_ctx *exec_ctx, void *pw, - grpc_cq_completion *ignored) { - int delete = 0; - state_watcher *w = pw; - gpr_mu_lock(&w->mu); - switch (w->phase) { - case WAITING: - case CALLED_BACK: - GPR_UNREACHABLE_CODE(return ); - case CALLING_BACK: - w->phase = CALLED_BACK; - break; - case CALLING_BACK_AND_FINISHED: - delete = 1; - break; - } - gpr_mu_unlock(&w->mu); - - if (delete) { - delete_state_watcher(exec_ctx, w); - } -} - -static void partly_done(grpc_exec_ctx *exec_ctx, state_watcher *w, - int due_to_completion) { - int delete = 0; - - if (due_to_completion) { - grpc_timer_cancel(exec_ctx, &w->alarm); - } - - gpr_mu_lock(&w->mu); - if (due_to_completion) { - w->success = 1; - } - switch (w->phase) { - case WAITING: - w->phase = CALLING_BACK; - grpc_cq_end_op(exec_ctx, w->cq, w->tag, w->success, finished_completion, - w, &w->completion_storage); - break; - case CALLING_BACK: - w->phase = CALLING_BACK_AND_FINISHED; - break; - case CALLING_BACK_AND_FINISHED: - GPR_UNREACHABLE_CODE(return ); - case CALLED_BACK: - delete = 1; - break; - } - gpr_mu_unlock(&w->mu); - - if (delete) { - delete_state_watcher(exec_ctx, w); - } -} - -static void watch_complete(grpc_exec_ctx *exec_ctx, void *pw, bool success) { - partly_done(exec_ctx, pw, 1); -} - -static void timeout_complete(grpc_exec_ctx *exec_ctx, void *pw, bool success) { - partly_done(exec_ctx, pw, 0); -} - -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_stack_last_element(grpc_channel_get_channel_stack(channel)); - grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; - state_watcher *w = gpr_malloc(sizeof(*w)); - - GRPC_API_TRACE( - "grpc_channel_watch_connectivity_state(" - "channel=%p, last_observed_state=%d, " - "deadline=gpr_timespec { tv_sec: %lld, tv_nsec: %d, clock_type: %d }, " - "cq=%p, tag=%p)", - 7, (channel, (int)last_observed_state, (long long)deadline.tv_sec, - (int)deadline.tv_nsec, (int)deadline.clock_type, cq, tag)); - - grpc_cq_begin_op(cq, tag); - - gpr_mu_init(&w->mu); - grpc_closure_init(&w->on_complete, watch_complete, w); - w->phase = WAITING; - w->state = last_observed_state; - w->success = 0; - w->cq = cq; - w->tag = tag; - w->channel = channel; - - grpc_timer_init(&exec_ctx, &w->alarm, - gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC), - timeout_complete, w, gpr_now(GPR_CLOCK_MONOTONIC)); - - if (client_channel_elem->filter == &grpc_client_channel_filter) { - GRPC_CHANNEL_INTERNAL_REF(channel, "watch_channel_connectivity"); - grpc_client_channel_watch_connectivity_state(&exec_ctx, client_channel_elem, - grpc_cq_pollset(cq), &w->state, - &w->on_complete); - } else { - abort(); - } - - grpc_exec_ctx_finish(&exec_ctx); -} diff --git a/src/core/lib/surface/init.c b/src/core/lib/surface/init.c index aca4ce9d07..f221d8db35 100644 --- a/src/core/lib/surface/init.c +++ b/src/core/lib/surface/init.c @@ -39,17 +39,17 @@ #include #include #include +#include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/client_config/lb_policy_registry.h" +#include "src/core/ext/client_config/resolver_registry.h" +#include "src/core/ext/client_config/subchannel.h" +#include "src/core/ext/client_config/subchannel_index.h" #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/channel_stack.h" -#include "src/core/lib/channel/client_channel.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_client_filter.h" #include "src/core/lib/channel/http_server_filter.h" -#include "src/core/lib/client_config/lb_policy_registry.h" -#include "src/core/lib/client_config/resolver_registry.h" -#include "src/core/lib/client_config/subchannel.h" -#include "src/core/lib/client_config/subchannel_index.h" #include "src/core/lib/debug/trace.h" #include "src/core/lib/iomgr/executor.h" #include "src/core/lib/iomgr/iomgr.h" diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py index 65ab42c618..53ea8285fd 100644 --- a/src/python/grpcio/grpc_core_dependencies.py +++ b/src/python/grpcio/grpc_core_dependencies.py @@ -83,6 +83,22 @@ CORE_SOURCE_FILES = [ 'src/core/ext/census/operation.c', 'src/core/ext/census/placeholders.c', 'src/core/ext/census/tracing.c', + 'src/core/ext/client_config/channel_connectivity.c', + 'src/core/ext/client_config/client_channel.c', + 'src/core/ext/client_config/client_config.c', + 'src/core/ext/client_config/connector.c', + 'src/core/ext/client_config/default_initial_connect_string.c', + 'src/core/ext/client_config/initial_connect_string.c', + 'src/core/ext/client_config/lb_policy.c', + 'src/core/ext/client_config/lb_policy_factory.c', + 'src/core/ext/client_config/lb_policy_registry.c', + 'src/core/ext/client_config/resolver.c', + 'src/core/ext/client_config/resolver_factory.c', + 'src/core/ext/client_config/resolver_registry.c', + 'src/core/ext/client_config/subchannel.c', + 'src/core/ext/client_config/subchannel_factory.c', + 'src/core/ext/client_config/subchannel_index.c', + 'src/core/ext/client_config/uri_parser.c', 'src/core/ext/lb_policy/grpclb/load_balancer_api.c', 'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.c', 'src/core/ext/lb_policy/pick_first/pick_first.c', @@ -117,26 +133,11 @@ CORE_SOURCE_FILES = [ 'src/core/lib/channel/channel_args.c', 'src/core/lib/channel/channel_stack.c', 'src/core/lib/channel/channel_stack_builder.c', - 'src/core/lib/channel/client_channel.c', 'src/core/lib/channel/compress_filter.c', 'src/core/lib/channel/connected_channel.c', 'src/core/lib/channel/http_client_filter.c', 'src/core/lib/channel/http_server_filter.c', 'src/core/lib/channel/subchannel_call_holder.c', - 'src/core/lib/client_config/client_config.c', - 'src/core/lib/client_config/connector.c', - 'src/core/lib/client_config/default_initial_connect_string.c', - 'src/core/lib/client_config/initial_connect_string.c', - 'src/core/lib/client_config/lb_policy.c', - 'src/core/lib/client_config/lb_policy_factory.c', - 'src/core/lib/client_config/lb_policy_registry.c', - 'src/core/lib/client_config/resolver.c', - 'src/core/lib/client_config/resolver_factory.c', - 'src/core/lib/client_config/resolver_registry.c', - 'src/core/lib/client_config/subchannel.c', - 'src/core/lib/client_config/subchannel_factory.c', - 'src/core/lib/client_config/subchannel_index.c', - 'src/core/lib/client_config/uri_parser.c', 'src/core/lib/compression/compression_algorithm.c', 'src/core/lib/compression/message_compress.c', 'src/core/lib/debug/trace.c', @@ -212,7 +213,6 @@ CORE_SOURCE_FILES = [ 'src/core/lib/surface/call_details.c', 'src/core/lib/surface/call_log_batch.c', 'src/core/lib/surface/channel.c', - 'src/core/lib/surface/channel_connectivity.c', 'src/core/lib/surface/channel_init.c', 'src/core/lib/surface/channel_ping.c', 'src/core/lib/surface/channel_stack_type.c', -- cgit v1.2.3 From 5aceb2740849a0d36bc45fd807309f6e2fc0d2c2 Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Thu, 31 Mar 2016 13:50:42 -0700 Subject: Fix include guards --- src/core/ext/client_config/client_channel.h | 6 +++--- src/core/ext/client_config/client_config.h | 6 +++--- src/core/ext/client_config/connector.h | 6 +++--- src/core/ext/client_config/initial_connect_string.h | 6 +++--- src/core/ext/client_config/lb_policy.h | 6 +++--- src/core/ext/client_config/lb_policy_factory.h | 6 +++--- src/core/ext/client_config/lb_policy_registry.h | 6 +++--- src/core/ext/client_config/resolver.h | 6 +++--- src/core/ext/client_config/resolver_factory.h | 6 +++--- src/core/ext/client_config/resolver_registry.h | 6 +++--- src/core/ext/client_config/subchannel.h | 6 +++--- src/core/ext/client_config/subchannel_factory.h | 6 +++--- src/core/ext/client_config/subchannel_index.h | 6 +++--- src/core/ext/client_config/uri_parser.h | 6 +++--- 14 files changed, 42 insertions(+), 42 deletions(-) (limited to 'src') diff --git a/src/core/ext/client_config/client_channel.h b/src/core/ext/client_config/client_channel.h index 0f5b676e45..ccb8d0821f 100644 --- a/src/core/ext/client_config/client_channel.h +++ b/src/core/ext/client_config/client_channel.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H -#define GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_H #include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/resolver.h" @@ -60,4 +60,4 @@ void grpc_client_channel_watch_connectivity_state( grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset, grpc_connectivity_state *state, grpc_closure *on_complete); -#endif /* GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_H */ diff --git a/src/core/ext/client_config/client_config.h b/src/core/ext/client_config/client_config.h index 2742ea2895..a6290cbcf0 100644 --- a/src/core/ext/client_config/client_config.h +++ b/src/core/ext/client_config/client_config.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CONFIG_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CONFIG_H #include "src/core/ext/client_config/lb_policy.h" @@ -50,4 +50,4 @@ void grpc_client_config_set_lb_policy(grpc_client_config *client_config, grpc_lb_policy *grpc_client_config_get_lb_policy( grpc_client_config *client_config); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CONFIG_H */ diff --git a/src/core/ext/client_config/connector.h b/src/core/ext/client_config/connector.h index 39870a261c..dd85dfcb7d 100644 --- a/src/core/ext/client_config/connector.h +++ b/src/core/ext/client_config/connector.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_CONNECTOR_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_CONNECTOR_H #include "src/core/lib/channel/channel_stack.h" #include "src/core/lib/iomgr/sockaddr.h" @@ -89,4 +89,4 @@ void grpc_connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *connector, void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *connector); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_CONNECTOR_H */ diff --git a/src/core/ext/client_config/initial_connect_string.h b/src/core/ext/client_config/initial_connect_string.h index 51302768c6..06f0767832 100644 --- a/src/core/ext/client_config/initial_connect_string.h +++ b/src/core/ext/client_config/initial_connect_string.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H #include #include "src/core/lib/iomgr/sockaddr.h" @@ -47,4 +47,4 @@ void grpc_test_set_initial_connect_string_function( void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len, gpr_slice *connect_string); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */ diff --git a/src/core/ext/client_config/lb_policy.h b/src/core/ext/client_config/lb_policy.h index 8779cf06ac..44b715c7a1 100644 --- a/src/core/ext/client_config/lb_policy.h +++ b/src/core/ext/client_config/lb_policy.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_H #include "src/core/ext/client_config/subchannel.h" #include "src/core/lib/transport/connectivity_state.h" @@ -141,4 +141,4 @@ void grpc_lb_policy_notify_on_state_change(grpc_exec_ctx *exec_ctx, grpc_connectivity_state grpc_lb_policy_check_connectivity( grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_H */ diff --git a/src/core/ext/client_config/lb_policy_factory.h b/src/core/ext/client_config/lb_policy_factory.h index 7cda216502..4a0a267ea3 100644 --- a/src/core/ext/client_config/lb_policy_factory.h +++ b/src/core/ext/client_config/lb_policy_factory.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_FACTORY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_FACTORY_H #include "src/core/ext/client_config/lb_policy.h" #include "src/core/ext/client_config/subchannel_factory.h" @@ -75,4 +75,4 @@ 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); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_FACTORY_H */ diff --git a/src/core/ext/client_config/lb_policy_registry.h b/src/core/ext/client_config/lb_policy_registry.h index f68dea3d86..92f38d6de6 100644 --- a/src/core/ext/client_config/lb_policy_registry.h +++ b/src/core/ext/client_config/lb_policy_registry.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_REGISTRY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_REGISTRY_H #include "src/core/ext/client_config/lb_policy_factory.h" #include "src/core/lib/iomgr/exec_ctx.h" @@ -52,4 +52,4 @@ void grpc_register_lb_policy(grpc_lb_policy_factory *factory); grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name, grpc_lb_policy_args *args); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */ diff --git a/src/core/ext/client_config/resolver.h b/src/core/ext/client_config/resolver.h index 226beda85f..6ecb5d2774 100644 --- a/src/core/ext/client_config/resolver.h +++ b/src/core/ext/client_config/resolver.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_H #include "src/core/ext/client_config/client_config.h" #include "src/core/ext/client_config/subchannel.h" @@ -91,4 +91,4 @@ void grpc_resolver_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver, grpc_client_config **target_config, grpc_closure *on_complete); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_H */ diff --git a/src/core/ext/client_config/resolver_factory.h b/src/core/ext/client_config/resolver_factory.h index e582166278..1a3519092d 100644 --- a/src/core/ext/client_config/resolver_factory.h +++ b/src/core/ext/client_config/resolver_factory.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_FACTORY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_FACTORY_H #include "src/core/ext/client_config/resolver.h" #include "src/core/ext/client_config/subchannel_factory.h" @@ -79,4 +79,4 @@ grpc_resolver *grpc_resolver_factory_create_resolver( char *grpc_resolver_factory_get_default_authority( grpc_resolver_factory *factory, grpc_uri *uri); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_FACTORY_H */ diff --git a/src/core/ext/client_config/resolver_registry.h b/src/core/ext/client_config/resolver_registry.h index 2de34b32ac..0467671d38 100644 --- a/src/core/ext/client_config/resolver_registry.h +++ b/src/core/ext/client_config/resolver_registry.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_REGISTRY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_REGISTRY_H #include "src/core/ext/client_config/resolver_factory.h" @@ -66,4 +66,4 @@ grpc_resolver_factory *grpc_resolver_factory_lookup(const char *name); representing the default authority to pass from a client. */ char *grpc_get_default_authority(const char *target); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_RESOLVER_REGISTRY_H */ diff --git a/src/core/ext/client_config/subchannel.h b/src/core/ext/client_config/subchannel.h index 71690c23a5..6a95cd8d78 100644 --- a/src/core/ext/client_config/subchannel.h +++ b/src/core/ext/client_config/subchannel.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_H #include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/connector.h" @@ -171,4 +171,4 @@ grpc_subchannel *grpc_subchannel_create(grpc_exec_ctx *exec_ctx, grpc_connector *connector, grpc_subchannel_args *args); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_H */ diff --git a/src/core/ext/client_config/subchannel_factory.h b/src/core/ext/client_config/subchannel_factory.h index 6614e935e5..249e1378e8 100644 --- a/src/core/ext/client_config/subchannel_factory.h +++ b/src/core/ext/client_config/subchannel_factory.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H #include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/subchannel.h" @@ -63,4 +63,4 @@ grpc_subchannel *grpc_subchannel_factory_create_subchannel( grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory, grpc_subchannel_args *args); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */ diff --git a/src/core/ext/client_config/subchannel_index.h b/src/core/ext/client_config/subchannel_index.h index 77972f8719..6b8d063855 100644 --- a/src/core/ext/client_config/subchannel_index.h +++ b/src/core/ext/client_config/subchannel_index.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_INDEX_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_INDEX_H #include "src/core/ext/client_config/connector.h" #include "src/core/ext/client_config/subchannel.h" @@ -74,4 +74,4 @@ void grpc_subchannel_index_init(void); /** Shutdown the subchannel index (global) */ void grpc_subchannel_index_shutdown(void); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */ diff --git a/src/core/ext/client_config/uri_parser.h b/src/core/ext/client_config/uri_parser.h index 4f8e809b2e..f588c0dc9d 100644 --- a/src/core/ext/client_config/uri_parser.h +++ b/src/core/ext/client_config/uri_parser.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_URI_PARSER_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_URI_PARSER_H typedef struct { char *scheme; @@ -48,4 +48,4 @@ grpc_uri *grpc_uri_parse(const char *uri_text, int suppress_errors); /** destroy a uri */ void grpc_uri_destroy(grpc_uri *uri); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_URI_PARSER_H */ -- cgit v1.2.3 From 4a6dad3970d1af3a8804be149576eae561cfe4b8 Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Fri, 1 Apr 2016 13:51:14 -0700 Subject: clang-fmt --- src/core/ext/client_config/client_channel.h | 2 +- src/core/ext/client_config/subchannel.c | 4 ++-- src/core/ext/client_config/subchannel.h | 2 +- src/core/ext/client_config/subchannel_factory.h | 2 +- src/core/ext/lb_policy/grpclb/load_balancer_api.h | 2 +- src/core/ext/transport/chttp2/client/insecure/channel_create.c | 4 ++-- src/core/ext/transport/chttp2/client/secure/secure_channel_create.c | 4 ++-- src/core/lib/surface/channel.h | 2 +- test/core/end2end/fixtures/h2_census.c | 2 +- test/core/end2end/fixtures/h2_compress.c | 2 +- test/core/end2end/fixtures/h2_full+pipe.c | 2 +- test/core/end2end/fixtures/h2_full+poll+pipe.c | 2 +- test/core/end2end/fixtures/h2_full+poll.c | 2 +- test/core/end2end/fixtures/h2_full+trace.c | 2 +- test/core/end2end/fixtures/h2_full.c | 2 +- test/core/end2end/fixtures/h2_proxy.c | 2 +- test/core/end2end/fixtures/h2_sockpair+trace.c | 2 +- test/core/end2end/fixtures/h2_sockpair.c | 2 +- test/core/end2end/fixtures/h2_sockpair_1byte.c | 2 +- test/core/end2end/fixtures/h2_uds+poll.c | 2 +- test/core/end2end/fixtures/h2_uds.c | 2 +- 21 files changed, 24 insertions(+), 24 deletions(-) (limited to 'src') diff --git a/src/core/ext/client_config/client_channel.h b/src/core/ext/client_config/client_channel.h index ccb8d0821f..1e47ad34ad 100644 --- a/src/core/ext/client_config/client_channel.h +++ b/src/core/ext/client_config/client_channel.h @@ -34,8 +34,8 @@ #ifndef GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_H #define GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_H -#include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/resolver.h" +#include "src/core/lib/channel/channel_stack.h" /* A client channel is a channel that begins disconnected, and can connect to some endpoint on demand. If that endpoint disconnects, it will be diff --git a/src/core/ext/client_config/subchannel.c b/src/core/ext/client_config/subchannel.c index 452513427a..5285041dd5 100644 --- a/src/core/ext/client_config/subchannel.c +++ b/src/core/ext/client_config/subchannel.c @@ -38,11 +38,11 @@ #include #include -#include "src/core/lib/channel/channel_args.h" #include "src/core/ext/client_config/client_channel.h" -#include "src/core/lib/channel/connected_channel.h" #include "src/core/ext/client_config/initial_connect_string.h" #include "src/core/ext/client_config/subchannel_index.h" +#include "src/core/lib/channel/channel_args.h" +#include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/iomgr/timer.h" #include "src/core/lib/profiling/timers.h" #include "src/core/lib/support/backoff.h" diff --git a/src/core/ext/client_config/subchannel.h b/src/core/ext/client_config/subchannel.h index 6a95cd8d78..0765a544e8 100644 --- a/src/core/ext/client_config/subchannel.h +++ b/src/core/ext/client_config/subchannel.h @@ -34,8 +34,8 @@ #ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_H #define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_H -#include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/connector.h" +#include "src/core/lib/channel/channel_stack.h" #include "src/core/lib/transport/connectivity_state.h" /** A (sub-)channel that knows how to connect to exactly one target diff --git a/src/core/ext/client_config/subchannel_factory.h b/src/core/ext/client_config/subchannel_factory.h index 249e1378e8..0fb806d081 100644 --- a/src/core/ext/client_config/subchannel_factory.h +++ b/src/core/ext/client_config/subchannel_factory.h @@ -34,8 +34,8 @@ #ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H #define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H -#include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/subchannel.h" +#include "src/core/lib/channel/channel_stack.h" typedef struct grpc_subchannel_factory grpc_subchannel_factory; typedef struct grpc_subchannel_factory_vtable grpc_subchannel_factory_vtable; diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/lb_policy/grpclb/load_balancer_api.h index 7a550f6da8..968f7d278a 100644 --- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h +++ b/src/core/ext/lb_policy/grpclb/load_balancer_api.h @@ -36,8 +36,8 @@ #include -#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" #include "src/core/ext/client_config/lb_policy_factory.h" +#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v0/load_balancer.pb.h" #ifdef __cplusplus extern "C" { diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.c b/src/core/ext/transport/chttp2/client/insecure/channel_create.c index d0ecda712e..5ebeed4373 100644 --- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c +++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c @@ -41,12 +41,12 @@ #include #include "src/core/ext/census/grpc_filter.h" +#include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/channel_args.h" -#include "src/core/ext/client_config/client_channel.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/http_client_filter.h" -#include "src/core/ext/client_config/resolver_registry.h" #include "src/core/lib/iomgr/tcp_client.h" #include "src/core/lib/surface/api_trace.h" #include "src/core/lib/surface/channel.h" diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c index a1a70e8d90..702b98d961 100644 --- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c +++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c @@ -40,10 +40,10 @@ #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" -#include "src/core/lib/channel/channel_args.h" #include "src/core/ext/client_config/client_channel.h" #include "src/core/ext/client_config/resolver_registry.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" +#include "src/core/lib/channel/channel_args.h" #include "src/core/lib/iomgr/tcp_client.h" #include "src/core/lib/security/auth_filters.h" #include "src/core/lib/security/credentials.h" diff --git a/src/core/lib/surface/channel.h b/src/core/lib/surface/channel.h index fc7c805db0..b5917d6c63 100644 --- a/src/core/lib/surface/channel.h +++ b/src/core/lib/surface/channel.h @@ -34,8 +34,8 @@ #ifndef GRPC_CORE_LIB_SURFACE_CHANNEL_H #define GRPC_CORE_LIB_SURFACE_CHANNEL_H -#include "src/core/lib/channel/channel_stack.h" #include "src/core/ext/client_config/subchannel_factory.h" +#include "src/core/lib/channel/channel_stack.h" #include "src/core/lib/surface/channel_stack_type.h" grpc_channel *grpc_channel_create(grpc_exec_ctx *exec_ctx, const char *target, diff --git a/test/core/end2end/fixtures/h2_census.c b/test/core/end2end/fixtures/h2_census.c index ef1cf73a05..eb66aff24b 100644 --- a/test/core/end2end/fixtures/h2_census.c +++ b/test/core/end2end/fixtures/h2_census.c @@ -41,9 +41,9 @@ #include #include #include +#include "src/core/ext/client_config/client_channel.h" #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/channel_args.h" -#include "src/core/ext/client_config/client_channel.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/surface/channel.h" diff --git a/test/core/end2end/fixtures/h2_compress.c b/test/core/end2end/fixtures/h2_compress.c index ddc33ff805..1b53381e91 100644 --- a/test/core/end2end/fixtures/h2_compress.c +++ b/test/core/end2end/fixtures/h2_compress.c @@ -41,9 +41,9 @@ #include #include #include +#include "src/core/ext/client_config/client_channel.h" #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/channel_args.h" -#include "src/core/ext/client_config/client_channel.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/surface/channel.h" diff --git a/test/core/end2end/fixtures/h2_full+pipe.c b/test/core/end2end/fixtures/h2_full+pipe.c index 412bb0411c..e167534da4 100644 --- a/test/core/end2end/fixtures/h2_full+pipe.c +++ b/test/core/end2end/fixtures/h2_full+pipe.c @@ -41,8 +41,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/iomgr/wakeup_fd_posix.h" diff --git a/test/core/end2end/fixtures/h2_full+poll+pipe.c b/test/core/end2end/fixtures/h2_full+poll+pipe.c index a98b92e324..f9480ff7e7 100644 --- a/test/core/end2end/fixtures/h2_full+poll+pipe.c +++ b/test/core/end2end/fixtures/h2_full+poll+pipe.c @@ -42,8 +42,8 @@ #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/iomgr/pollset_posix.h" diff --git a/test/core/end2end/fixtures/h2_full+poll.c b/test/core/end2end/fixtures/h2_full+poll.c index 443b6d49ab..cac61edba8 100644 --- a/test/core/end2end/fixtures/h2_full+poll.c +++ b/test/core/end2end/fixtures/h2_full+poll.c @@ -42,8 +42,8 @@ #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/iomgr/pollset_posix.h" diff --git a/test/core/end2end/fixtures/h2_full+trace.c b/test/core/end2end/fixtures/h2_full+trace.c index 8db44de960..4bb0bf3e8e 100644 --- a/test/core/end2end/fixtures/h2_full+trace.c +++ b/test/core/end2end/fixtures/h2_full+trace.c @@ -41,8 +41,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/support/env.h" diff --git a/test/core/end2end/fixtures/h2_full.c b/test/core/end2end/fixtures/h2_full.c index 786ae1a814..6182f592cb 100644 --- a/test/core/end2end/fixtures/h2_full.c +++ b/test/core/end2end/fixtures/h2_full.c @@ -41,8 +41,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/surface/channel.h" diff --git a/test/core/end2end/fixtures/h2_proxy.c b/test/core/end2end/fixtures/h2_proxy.c index 699d4bcff2..7eb42c4d2c 100644 --- a/test/core/end2end/fixtures/h2_proxy.c +++ b/test/core/end2end/fixtures/h2_proxy.c @@ -41,8 +41,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/surface/channel.h" diff --git a/test/core/end2end/fixtures/h2_sockpair+trace.c b/test/core/end2end/fixtures/h2_sockpair+trace.c index 1b581373be..f88a778203 100644 --- a/test/core/end2end/fixtures/h2_sockpair+trace.c +++ b/test/core/end2end/fixtures/h2_sockpair+trace.c @@ -40,8 +40,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_client_filter.h" diff --git a/test/core/end2end/fixtures/h2_sockpair.c b/test/core/end2end/fixtures/h2_sockpair.c index 0b4df4db14..5a7aa50a63 100644 --- a/test/core/end2end/fixtures/h2_sockpair.c +++ b/test/core/end2end/fixtures/h2_sockpair.c @@ -40,8 +40,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_client_filter.h" diff --git a/test/core/end2end/fixtures/h2_sockpair_1byte.c b/test/core/end2end/fixtures/h2_sockpair_1byte.c index a84a0d2e40..18f3dc2ab0 100644 --- a/test/core/end2end/fixtures/h2_sockpair_1byte.c +++ b/test/core/end2end/fixtures/h2_sockpair_1byte.c @@ -40,8 +40,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/compress_filter.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_client_filter.h" diff --git a/test/core/end2end/fixtures/h2_uds+poll.c b/test/core/end2end/fixtures/h2_uds+poll.c index d91b6df115..7a00a578a7 100644 --- a/test/core/end2end/fixtures/h2_uds+poll.c +++ b/test/core/end2end/fixtures/h2_uds+poll.c @@ -45,8 +45,8 @@ #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/iomgr/pollset_posix.h" diff --git a/test/core/end2end/fixtures/h2_uds.c b/test/core/end2end/fixtures/h2_uds.c index d87eb8d79d..cdbb4ec2cb 100644 --- a/test/core/end2end/fixtures/h2_uds.c +++ b/test/core/end2end/fixtures/h2_uds.c @@ -44,8 +44,8 @@ #include #include #include -#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/ext/client_config/client_channel.h" +#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h" #include "src/core/lib/channel/connected_channel.h" #include "src/core/lib/channel/http_server_filter.h" #include "src/core/lib/support/string.h" -- cgit v1.2.3 From f40a1972d00645ec9212f26085d6ed28cf3ea12c Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Tue, 5 Apr 2016 10:45:40 -0700 Subject: Fix include guards --- src/core/ext/client_config/client_channel_factory.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/core/ext/client_config/client_channel_factory.h b/src/core/ext/client_config/client_channel_factory.h index 836c1ba2f0..1241b9b781 100644 --- a/src/core/ext/client_config/client_channel_factory.h +++ b/src/core/ext/client_config/client_channel_factory.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H -#define GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H #include @@ -82,4 +82,4 @@ 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, grpc_channel_args *args); -#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_CLIENT_CHANNEL_FACTORY_H */ -- cgit v1.2.3 From b112f3989fb5cd45b9e4b53093d0c3d5f4d98c97 Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Tue, 5 Apr 2016 12:44:04 -0700 Subject: Move subchannel_call_holder --- BUILD | 12 +- Makefile | 4 +- binding.gyp | 2 +- build.yaml | 4 +- config.m4 | 2 +- gRPC.podspec | 6 +- grpc.gemspec | 4 +- package.json | 4 +- package.xml | 4 +- src/core/ext/client_config/client_channel.c | 2 +- .../ext/client_config/subchannel_call_holder.c | 260 +++++++++++++++++++++ .../ext/client_config/subchannel_call_holder.h | 98 ++++++++ src/core/lib/channel/subchannel_call_holder.c | 260 --------------------- src/core/lib/channel/subchannel_call_holder.h | 98 -------- src/python/grpcio/grpc_core_dependencies.py | 2 +- tools/doxygen/Doxyfile.core.internal | 4 +- tools/run_tests/sources_and_headers.json | 12 +- vsprojects/vcxproj/grpc/grpc.vcxproj | 6 +- vsprojects/vcxproj/grpc/grpc.vcxproj.filters | 12 +- .../vcxproj/grpc_unsecure/grpc_unsecure.vcxproj | 6 +- .../grpc_unsecure/grpc_unsecure.vcxproj.filters | 12 +- 21 files changed, 407 insertions(+), 407 deletions(-) create mode 100644 src/core/ext/client_config/subchannel_call_holder.c create mode 100644 src/core/ext/client_config/subchannel_call_holder.h delete mode 100644 src/core/lib/channel/subchannel_call_holder.c delete mode 100644 src/core/lib/channel/subchannel_call_holder.h (limited to 'src') diff --git a/BUILD b/BUILD index 3874e9b6fd..1335bdeb34 100644 --- a/BUILD +++ b/BUILD @@ -177,6 +177,7 @@ cc_library( "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -210,7 +211,6 @@ cc_library( "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", @@ -313,6 +313,7 @@ cc_library( "src/core/ext/client_config/resolver_factory.c", "src/core/ext/client_config/resolver_registry.c", "src/core/ext/client_config/subchannel.c", + "src/core/ext/client_config/subchannel_call_holder.c", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/uri_parser.c", "src/core/ext/lb_policy/grpclb/load_balancer_api.c", @@ -353,7 +354,6 @@ cc_library( "src/core/lib/channel/connected_channel.c", "src/core/lib/channel/http_client_filter.c", "src/core/lib/channel/http_server_filter.c", - "src/core/lib/channel/subchannel_call_holder.c", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", "src/core/lib/debug/trace.c", @@ -540,6 +540,7 @@ cc_library( "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -573,7 +574,6 @@ cc_library( "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", @@ -662,6 +662,7 @@ cc_library( "src/core/ext/client_config/resolver_factory.c", "src/core/ext/client_config/resolver_registry.c", "src/core/ext/client_config/subchannel.c", + "src/core/ext/client_config/subchannel_call_holder.c", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/uri_parser.c", "src/core/ext/lb_policy/grpclb/load_balancer_api.c", @@ -700,7 +701,6 @@ cc_library( "src/core/lib/channel/connected_channel.c", "src/core/lib/channel/http_client_filter.c", "src/core/lib/channel/http_server_filter.c", - "src/core/lib/channel/subchannel_call_holder.c", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", "src/core/lib/debug/trace.c", @@ -1367,6 +1367,7 @@ objc_library( "src/core/ext/client_config/resolver_factory.c", "src/core/ext/client_config/resolver_registry.c", "src/core/ext/client_config/subchannel.c", + "src/core/ext/client_config/subchannel_call_holder.c", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/uri_parser.c", "src/core/ext/lb_policy/grpclb/load_balancer_api.c", @@ -1407,7 +1408,6 @@ objc_library( "src/core/lib/channel/connected_channel.c", "src/core/lib/channel/http_client_filter.c", "src/core/lib/channel/http_server_filter.c", - "src/core/lib/channel/subchannel_call_holder.c", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", "src/core/lib/debug/trace.c", @@ -1536,6 +1536,7 @@ objc_library( "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -1569,7 +1570,6 @@ objc_library( "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", diff --git a/Makefile b/Makefile index a6b0463ab7..cabe7e86bd 100644 --- a/Makefile +++ b/Makefile @@ -2461,6 +2461,7 @@ LIBGRPC_SRC = \ src/core/ext/client_config/resolver_factory.c \ src/core/ext/client_config/resolver_registry.c \ src/core/ext/client_config/subchannel.c \ + src/core/ext/client_config/subchannel_call_holder.c \ src/core/ext/client_config/subchannel_index.c \ src/core/ext/client_config/uri_parser.c \ src/core/ext/lb_policy/grpclb/load_balancer_api.c \ @@ -2501,7 +2502,6 @@ LIBGRPC_SRC = \ src/core/lib/channel/connected_channel.c \ src/core/lib/channel/http_client_filter.c \ src/core/lib/channel/http_server_filter.c \ - src/core/lib/channel/subchannel_call_holder.c \ src/core/lib/compression/compression_algorithm.c \ src/core/lib/compression/message_compress.c \ src/core/lib/debug/trace.c \ @@ -2820,6 +2820,7 @@ LIBGRPC_UNSECURE_SRC = \ src/core/ext/client_config/resolver_factory.c \ src/core/ext/client_config/resolver_registry.c \ src/core/ext/client_config/subchannel.c \ + src/core/ext/client_config/subchannel_call_holder.c \ src/core/ext/client_config/subchannel_index.c \ src/core/ext/client_config/uri_parser.c \ src/core/ext/lb_policy/grpclb/load_balancer_api.c \ @@ -2858,7 +2859,6 @@ LIBGRPC_UNSECURE_SRC = \ src/core/lib/channel/connected_channel.c \ src/core/lib/channel/http_client_filter.c \ src/core/lib/channel/http_server_filter.c \ - src/core/lib/channel/subchannel_call_holder.c \ src/core/lib/compression/compression_algorithm.c \ src/core/lib/compression/message_compress.c \ src/core/lib/debug/trace.c \ diff --git a/binding.gyp b/binding.gyp index 3ae14f22a4..d6d559dd58 100644 --- a/binding.gyp +++ b/binding.gyp @@ -581,6 +581,7 @@ 'src/core/ext/client_config/resolver_factory.c', 'src/core/ext/client_config/resolver_registry.c', 'src/core/ext/client_config/subchannel.c', + 'src/core/ext/client_config/subchannel_call_holder.c', 'src/core/ext/client_config/subchannel_index.c', 'src/core/ext/client_config/uri_parser.c', 'src/core/ext/lb_policy/grpclb/load_balancer_api.c', @@ -621,7 +622,6 @@ 'src/core/lib/channel/connected_channel.c', 'src/core/lib/channel/http_client_filter.c', 'src/core/lib/channel/http_server_filter.c', - 'src/core/lib/channel/subchannel_call_holder.c', 'src/core/lib/compression/compression_algorithm.c', 'src/core/lib/compression/message_compress.c', 'src/core/lib/debug/trace.c', diff --git a/build.yaml b/build.yaml index 8ff7bb9209..059551d82a 100644 --- a/build.yaml +++ b/build.yaml @@ -262,7 +262,6 @@ filegroups: - src/core/lib/channel/context.h - src/core/lib/channel/http_client_filter.h - src/core/lib/channel/http_server_filter.h - - src/core/lib/channel/subchannel_call_holder.h - src/core/lib/compression/algorithm_metadata.h - src/core/lib/compression/message_compress.h - src/core/lib/debug/trace.h @@ -336,7 +335,6 @@ filegroups: - src/core/lib/channel/connected_channel.c - src/core/lib/channel/http_client_filter.c - src/core/lib/channel/http_server_filter.c - - src/core/lib/channel/subchannel_call_holder.c - src/core/lib/compression/compression_algorithm.c - src/core/lib/compression/message_compress.c - src/core/lib/debug/trace.c @@ -426,6 +424,7 @@ filegroups: - src/core/ext/client_config/resolver_factory.h - src/core/ext/client_config/resolver_registry.h - src/core/ext/client_config/subchannel.h + - src/core/ext/client_config/subchannel_call_holder.h - src/core/ext/client_config/subchannel_index.h - src/core/ext/client_config/uri_parser.h src: @@ -443,6 +442,7 @@ filegroups: - src/core/ext/client_config/resolver_factory.c - src/core/ext/client_config/resolver_registry.c - src/core/ext/client_config/subchannel.c + - src/core/ext/client_config/subchannel_call_holder.c - src/core/ext/client_config/subchannel_index.c - src/core/ext/client_config/uri_parser.c - name: grpc_codegen diff --git a/config.m4 b/config.m4 index 1acc64e9e9..dae142dd40 100644 --- a/config.m4 +++ b/config.m4 @@ -103,6 +103,7 @@ if test "$PHP_GRPC" != "no"; then src/core/ext/client_config/resolver_factory.c \ src/core/ext/client_config/resolver_registry.c \ src/core/ext/client_config/subchannel.c \ + src/core/ext/client_config/subchannel_call_holder.c \ src/core/ext/client_config/subchannel_index.c \ src/core/ext/client_config/uri_parser.c \ src/core/ext/lb_policy/grpclb/load_balancer_api.c \ @@ -143,7 +144,6 @@ if test "$PHP_GRPC" != "no"; then src/core/lib/channel/connected_channel.c \ src/core/lib/channel/http_client_filter.c \ src/core/lib/channel/http_server_filter.c \ - src/core/lib/channel/subchannel_call_holder.c \ src/core/lib/compression/compression_algorithm.c \ src/core/lib/compression/message_compress.c \ src/core/lib/debug/trace.c \ diff --git a/gRPC.podspec b/gRPC.podspec index bf4ce966e6..93346df382 100644 --- a/gRPC.podspec +++ b/gRPC.podspec @@ -179,6 +179,7 @@ Pod::Spec.new do |s| 'src/core/ext/client_config/resolver_factory.h', 'src/core/ext/client_config/resolver_registry.h', 'src/core/ext/client_config/subchannel.h', + 'src/core/ext/client_config/subchannel_call_holder.h', 'src/core/ext/client_config/subchannel_index.h', 'src/core/ext/client_config/uri_parser.h', 'src/core/ext/lb_policy/grpclb/load_balancer_api.h', @@ -212,7 +213,6 @@ Pod::Spec.new do |s| 'src/core/lib/channel/context.h', 'src/core/lib/channel/http_client_filter.h', 'src/core/lib/channel/http_server_filter.h', - 'src/core/lib/channel/subchannel_call_holder.h', 'src/core/lib/compression/algorithm_metadata.h', 'src/core/lib/compression/message_compress.h', 'src/core/lib/debug/trace.h', @@ -332,6 +332,7 @@ Pod::Spec.new do |s| 'src/core/ext/client_config/resolver_factory.c', 'src/core/ext/client_config/resolver_registry.c', 'src/core/ext/client_config/subchannel.c', + 'src/core/ext/client_config/subchannel_call_holder.c', 'src/core/ext/client_config/subchannel_index.c', 'src/core/ext/client_config/uri_parser.c', 'src/core/ext/lb_policy/grpclb/load_balancer_api.c', @@ -372,7 +373,6 @@ Pod::Spec.new do |s| 'src/core/lib/channel/connected_channel.c', 'src/core/lib/channel/http_client_filter.c', 'src/core/lib/channel/http_server_filter.c', - 'src/core/lib/channel/subchannel_call_holder.c', 'src/core/lib/compression/compression_algorithm.c', 'src/core/lib/compression/message_compress.c', 'src/core/lib/debug/trace.c', @@ -502,6 +502,7 @@ Pod::Spec.new do |s| 'src/core/ext/client_config/resolver_factory.h', 'src/core/ext/client_config/resolver_registry.h', 'src/core/ext/client_config/subchannel.h', + 'src/core/ext/client_config/subchannel_call_holder.h', 'src/core/ext/client_config/subchannel_index.h', 'src/core/ext/client_config/uri_parser.h', 'src/core/ext/lb_policy/grpclb/load_balancer_api.h', @@ -535,7 +536,6 @@ Pod::Spec.new do |s| 'src/core/lib/channel/context.h', 'src/core/lib/channel/http_client_filter.h', 'src/core/lib/channel/http_server_filter.h', - 'src/core/lib/channel/subchannel_call_holder.h', 'src/core/lib/compression/algorithm_metadata.h', 'src/core/lib/compression/message_compress.h', 'src/core/lib/debug/trace.h', diff --git a/grpc.gemspec b/grpc.gemspec index b491af9116..03192c42dd 100755 --- a/grpc.gemspec +++ b/grpc.gemspec @@ -175,6 +175,7 @@ Gem::Specification.new do |s| s.files += %w( src/core/ext/client_config/resolver_factory.h ) s.files += %w( src/core/ext/client_config/resolver_registry.h ) s.files += %w( src/core/ext/client_config/subchannel.h ) + s.files += %w( src/core/ext/client_config/subchannel_call_holder.h ) s.files += %w( src/core/ext/client_config/subchannel_index.h ) s.files += %w( src/core/ext/client_config/uri_parser.h ) s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.h ) @@ -208,7 +209,6 @@ Gem::Specification.new do |s| s.files += %w( src/core/lib/channel/context.h ) s.files += %w( src/core/lib/channel/http_client_filter.h ) s.files += %w( src/core/lib/channel/http_server_filter.h ) - s.files += %w( src/core/lib/channel/subchannel_call_holder.h ) s.files += %w( src/core/lib/compression/algorithm_metadata.h ) s.files += %w( src/core/lib/compression/message_compress.h ) s.files += %w( src/core/lib/debug/trace.h ) @@ -315,6 +315,7 @@ Gem::Specification.new do |s| s.files += %w( src/core/ext/client_config/resolver_factory.c ) s.files += %w( src/core/ext/client_config/resolver_registry.c ) s.files += %w( src/core/ext/client_config/subchannel.c ) + s.files += %w( src/core/ext/client_config/subchannel_call_holder.c ) s.files += %w( src/core/ext/client_config/subchannel_index.c ) s.files += %w( src/core/ext/client_config/uri_parser.c ) s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.c ) @@ -355,7 +356,6 @@ Gem::Specification.new do |s| s.files += %w( src/core/lib/channel/connected_channel.c ) s.files += %w( src/core/lib/channel/http_client_filter.c ) s.files += %w( src/core/lib/channel/http_server_filter.c ) - s.files += %w( src/core/lib/channel/subchannel_call_holder.c ) s.files += %w( src/core/lib/compression/compression_algorithm.c ) s.files += %w( src/core/lib/compression/message_compress.c ) s.files += %w( src/core/lib/debug/trace.c ) diff --git a/package.json b/package.json index 1ce1ac0728..11f703f3f3 100644 --- a/package.json +++ b/package.json @@ -118,6 +118,7 @@ "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -151,7 +152,6 @@ "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", @@ -258,6 +258,7 @@ "src/core/ext/client_config/resolver_factory.c", "src/core/ext/client_config/resolver_registry.c", "src/core/ext/client_config/subchannel.c", + "src/core/ext/client_config/subchannel_call_holder.c", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/uri_parser.c", "src/core/ext/lb_policy/grpclb/load_balancer_api.c", @@ -298,7 +299,6 @@ "src/core/lib/channel/connected_channel.c", "src/core/lib/channel/http_client_filter.c", "src/core/lib/channel/http_server_filter.c", - "src/core/lib/channel/subchannel_call_holder.c", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", "src/core/lib/debug/trace.c", diff --git a/package.xml b/package.xml index bf27fcd399..7730187ba1 100644 --- a/package.xml +++ b/package.xml @@ -179,6 +179,7 @@ + @@ -212,7 +213,6 @@ - @@ -319,6 +319,7 @@ + @@ -359,7 +360,6 @@ - diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c index 3b2f7b8785..b1c26dc342 100644 --- a/src/core/ext/client_config/client_channel.c +++ b/src/core/ext/client_config/client_channel.c @@ -43,7 +43,7 @@ #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/channel/connected_channel.h" -#include "src/core/lib/channel/subchannel_call_holder.h" +#include "src/core/ext/client_config/subchannel_call_holder.h" #include "src/core/lib/iomgr/iomgr.h" #include "src/core/lib/profiling/timers.h" #include "src/core/lib/support/string.h" diff --git a/src/core/ext/client_config/subchannel_call_holder.c b/src/core/ext/client_config/subchannel_call_holder.c new file mode 100644 index 0000000000..3db462b246 --- /dev/null +++ b/src/core/ext/client_config/subchannel_call_holder.c @@ -0,0 +1,260 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include "src/core/ext/client_config/subchannel_call_holder.h" + +#include + +#include "src/core/lib/profiling/timers.h" + +#define GET_CALL(holder) \ + ((grpc_subchannel_call *)(gpr_atm_acq_load(&(holder)->subchannel_call))) + +#define CANCELLED_CALL ((grpc_subchannel_call *)1) + +static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *holder, + bool success); +static void retry_ops(grpc_exec_ctx *exec_ctx, void *retry_ops_args, + bool success); + +static void add_waiting_locked(grpc_subchannel_call_holder *holder, + grpc_transport_stream_op *op); +static void fail_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder); +static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder); + +void grpc_subchannel_call_holder_init( + grpc_subchannel_call_holder *holder, + grpc_subchannel_call_holder_pick_subchannel pick_subchannel, + void *pick_subchannel_arg, grpc_call_stack *owning_call) { + gpr_atm_rel_store(&holder->subchannel_call, 0); + holder->pick_subchannel = pick_subchannel; + holder->pick_subchannel_arg = pick_subchannel_arg; + gpr_mu_init(&holder->mu); + holder->connected_subchannel = NULL; + holder->waiting_ops = NULL; + holder->waiting_ops_count = 0; + holder->waiting_ops_capacity = 0; + holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; + holder->owning_call = owning_call; +} + +void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder) { + grpc_subchannel_call *call = GET_CALL(holder); + if (call != NULL && call != CANCELLED_CALL) { + GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, call, "holder"); + } + GPR_ASSERT(holder->creation_phase == + GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING); + gpr_mu_destroy(&holder->mu); + GPR_ASSERT(holder->waiting_ops_count == 0); + gpr_free(holder->waiting_ops); +} + +void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder, + grpc_transport_stream_op *op) { + /* try to (atomically) get the call */ + grpc_subchannel_call *call = GET_CALL(holder); + GPR_TIMER_BEGIN("grpc_subchannel_call_holder_perform_op", 0); + if (call == CANCELLED_CALL) { + grpc_transport_stream_op_finish_with_failure(exec_ctx, op); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); + return; + } + if (call != NULL) { + grpc_subchannel_call_process_op(exec_ctx, call, op); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); + return; + } + /* we failed; lock and figure out what to do */ + gpr_mu_lock(&holder->mu); +retry: + /* need to recheck that another thread hasn't set the call */ + call = GET_CALL(holder); + if (call == CANCELLED_CALL) { + gpr_mu_unlock(&holder->mu); + grpc_transport_stream_op_finish_with_failure(exec_ctx, op); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); + return; + } + if (call != NULL) { + gpr_mu_unlock(&holder->mu); + grpc_subchannel_call_process_op(exec_ctx, call, op); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); + return; + } + /* if this is a cancellation, then we can raise our cancelled flag */ + if (op->cancel_with_status != GRPC_STATUS_OK) { + if (!gpr_atm_rel_cas(&holder->subchannel_call, 0, 1)) { + goto retry; + } else { + switch (holder->creation_phase) { + case GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING: + fail_locked(exec_ctx, holder); + break; + case GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL: + holder->pick_subchannel(exec_ctx, holder->pick_subchannel_arg, NULL, + 0, &holder->connected_subchannel, NULL); + break; + } + gpr_mu_unlock(&holder->mu); + grpc_transport_stream_op_finish_with_failure(exec_ctx, op); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); + return; + } + } + /* if we don't have a subchannel, try to get one */ + if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && + holder->connected_subchannel == NULL && + op->send_initial_metadata != NULL) { + holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL; + grpc_closure_init(&holder->next_step, subchannel_ready, holder); + GRPC_CALL_STACK_REF(holder->owning_call, "pick_subchannel"); + if (holder->pick_subchannel( + exec_ctx, holder->pick_subchannel_arg, op->send_initial_metadata, + op->send_initial_metadata_flags, &holder->connected_subchannel, + &holder->next_step)) { + holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; + GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); + } + } + /* if we've got a subchannel, then let's ask it to create a call */ + if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && + holder->connected_subchannel != NULL) { + gpr_atm_rel_store( + &holder->subchannel_call, + (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call( + exec_ctx, holder->connected_subchannel, holder->pollset)); + retry_waiting_locked(exec_ctx, holder); + goto retry; + } + /* nothing to be done but wait */ + add_waiting_locked(holder, op); + gpr_mu_unlock(&holder->mu); + GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); +} + +static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *arg, bool success) { + grpc_subchannel_call_holder *holder = arg; + gpr_mu_lock(&holder->mu); + GPR_ASSERT(holder->creation_phase == + GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL); + holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; + if (holder->connected_subchannel == NULL) { + fail_locked(exec_ctx, holder); + } else if (1 == gpr_atm_acq_load(&holder->subchannel_call)) { + /* already cancelled before subchannel became ready */ + fail_locked(exec_ctx, holder); + } else { + gpr_atm_rel_store( + &holder->subchannel_call, + (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call( + exec_ctx, holder->connected_subchannel, holder->pollset)); + retry_waiting_locked(exec_ctx, holder); + } + gpr_mu_unlock(&holder->mu); + GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); +} + +typedef struct { + grpc_transport_stream_op *ops; + size_t nops; + grpc_subchannel_call *call; +} retry_ops_args; + +static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder) { + retry_ops_args *a = gpr_malloc(sizeof(*a)); + a->ops = holder->waiting_ops; + a->nops = holder->waiting_ops_count; + a->call = GET_CALL(holder); + if (a->call == CANCELLED_CALL) { + gpr_free(a); + fail_locked(exec_ctx, holder); + return; + } + holder->waiting_ops = NULL; + holder->waiting_ops_count = 0; + holder->waiting_ops_capacity = 0; + GRPC_SUBCHANNEL_CALL_REF(a->call, "retry_ops"); + grpc_exec_ctx_enqueue(exec_ctx, grpc_closure_create(retry_ops, a), true, + NULL); +} + +static void retry_ops(grpc_exec_ctx *exec_ctx, void *args, bool success) { + retry_ops_args *a = args; + size_t i; + for (i = 0; i < a->nops; i++) { + grpc_subchannel_call_process_op(exec_ctx, a->call, &a->ops[i]); + } + GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, a->call, "retry_ops"); + gpr_free(a->ops); + gpr_free(a); +} + +static void add_waiting_locked(grpc_subchannel_call_holder *holder, + grpc_transport_stream_op *op) { + GPR_TIMER_BEGIN("add_waiting_locked", 0); + if (holder->waiting_ops_count == holder->waiting_ops_capacity) { + holder->waiting_ops_capacity = GPR_MAX(3, 2 * holder->waiting_ops_capacity); + holder->waiting_ops = + gpr_realloc(holder->waiting_ops, holder->waiting_ops_capacity * + sizeof(*holder->waiting_ops)); + } + holder->waiting_ops[holder->waiting_ops_count++] = *op; + GPR_TIMER_END("add_waiting_locked", 0); +} + +static void fail_locked(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder) { + size_t i; + for (i = 0; i < holder->waiting_ops_count; i++) { + grpc_transport_stream_op_finish_with_failure(exec_ctx, + &holder->waiting_ops[i]); + } + holder->waiting_ops_count = 0; +} + +char *grpc_subchannel_call_holder_get_peer( + grpc_exec_ctx *exec_ctx, grpc_subchannel_call_holder *holder) { + grpc_subchannel_call *subchannel_call = GET_CALL(holder); + + if (subchannel_call) { + return grpc_subchannel_call_get_peer(exec_ctx, subchannel_call); + } else { + return NULL; + } +} diff --git a/src/core/ext/client_config/subchannel_call_holder.h b/src/core/ext/client_config/subchannel_call_holder.h new file mode 100644 index 0000000000..2107a06cd9 --- /dev/null +++ b/src/core/ext/client_config/subchannel_call_holder.h @@ -0,0 +1,98 @@ +/* + * + * Copyright 2015, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#ifndef GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H +#define GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H + +#include "src/core/ext/client_config/subchannel.h" + +/** Pick a subchannel for grpc_subchannel_call_holder; + Return 1 if subchannel is available immediately (in which case on_ready + should not be called), or 0 otherwise (in which case on_ready should be + called when the subchannel is available) */ +typedef int (*grpc_subchannel_call_holder_pick_subchannel)( + grpc_exec_ctx *exec_ctx, void *arg, grpc_metadata_batch *initial_metadata, + uint32_t initial_metadata_flags, + grpc_connected_subchannel **connected_subchannel, grpc_closure *on_ready); + +typedef enum { + GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING, + GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL +} grpc_subchannel_call_holder_creation_phase; + +/** Wrapper for holding a pointer to grpc_subchannel_call, and the + associated machinery to create such a pointer. + Handles queueing of stream ops until a call object is ready, waiting + for initial metadata before trying to create a call object, + and handling cancellation gracefully. + + The channel filter uses this as their call_data. */ +typedef struct grpc_subchannel_call_holder { + /** either 0 for no call, 1 for cancelled, or a pointer to a + grpc_subchannel_call */ + gpr_atm subchannel_call; + /** Helper function to choose the subchannel on which to create + the call object. Channel filter delegates to the load + balancing policy (once it's ready). */ + grpc_subchannel_call_holder_pick_subchannel pick_subchannel; + void *pick_subchannel_arg; + + gpr_mu mu; + + grpc_subchannel_call_holder_creation_phase creation_phase; + grpc_connected_subchannel *connected_subchannel; + grpc_pollset *pollset; + + grpc_transport_stream_op *waiting_ops; + size_t waiting_ops_count; + size_t waiting_ops_capacity; + + grpc_closure next_step; + + grpc_call_stack *owning_call; +} grpc_subchannel_call_holder; + +void grpc_subchannel_call_holder_init( + grpc_subchannel_call_holder *holder, + grpc_subchannel_call_holder_pick_subchannel pick_subchannel, + void *pick_subchannel_arg, grpc_call_stack *owning_call); +void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder); + +void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder, + grpc_transport_stream_op *op); +char *grpc_subchannel_call_holder_get_peer(grpc_exec_ctx *exec_ctx, + grpc_subchannel_call_holder *holder); + +#endif /* GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H */ diff --git a/src/core/lib/channel/subchannel_call_holder.c b/src/core/lib/channel/subchannel_call_holder.c deleted file mode 100644 index a2686a380a..0000000000 --- a/src/core/lib/channel/subchannel_call_holder.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#include "src/core/lib/channel/subchannel_call_holder.h" - -#include - -#include "src/core/lib/profiling/timers.h" - -#define GET_CALL(holder) \ - ((grpc_subchannel_call *)(gpr_atm_acq_load(&(holder)->subchannel_call))) - -#define CANCELLED_CALL ((grpc_subchannel_call *)1) - -static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *holder, - bool success); -static void retry_ops(grpc_exec_ctx *exec_ctx, void *retry_ops_args, - bool success); - -static void add_waiting_locked(grpc_subchannel_call_holder *holder, - grpc_transport_stream_op *op); -static void fail_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder); -static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder); - -void grpc_subchannel_call_holder_init( - grpc_subchannel_call_holder *holder, - grpc_subchannel_call_holder_pick_subchannel pick_subchannel, - void *pick_subchannel_arg, grpc_call_stack *owning_call) { - gpr_atm_rel_store(&holder->subchannel_call, 0); - holder->pick_subchannel = pick_subchannel; - holder->pick_subchannel_arg = pick_subchannel_arg; - gpr_mu_init(&holder->mu); - holder->connected_subchannel = NULL; - holder->waiting_ops = NULL; - holder->waiting_ops_count = 0; - holder->waiting_ops_capacity = 0; - holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; - holder->owning_call = owning_call; -} - -void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder) { - grpc_subchannel_call *call = GET_CALL(holder); - if (call != NULL && call != CANCELLED_CALL) { - GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, call, "holder"); - } - GPR_ASSERT(holder->creation_phase == - GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING); - gpr_mu_destroy(&holder->mu); - GPR_ASSERT(holder->waiting_ops_count == 0); - gpr_free(holder->waiting_ops); -} - -void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder, - grpc_transport_stream_op *op) { - /* try to (atomically) get the call */ - grpc_subchannel_call *call = GET_CALL(holder); - GPR_TIMER_BEGIN("grpc_subchannel_call_holder_perform_op", 0); - if (call == CANCELLED_CALL) { - grpc_transport_stream_op_finish_with_failure(exec_ctx, op); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); - return; - } - if (call != NULL) { - grpc_subchannel_call_process_op(exec_ctx, call, op); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); - return; - } - /* we failed; lock and figure out what to do */ - gpr_mu_lock(&holder->mu); -retry: - /* need to recheck that another thread hasn't set the call */ - call = GET_CALL(holder); - if (call == CANCELLED_CALL) { - gpr_mu_unlock(&holder->mu); - grpc_transport_stream_op_finish_with_failure(exec_ctx, op); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); - return; - } - if (call != NULL) { - gpr_mu_unlock(&holder->mu); - grpc_subchannel_call_process_op(exec_ctx, call, op); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); - return; - } - /* if this is a cancellation, then we can raise our cancelled flag */ - if (op->cancel_with_status != GRPC_STATUS_OK) { - if (!gpr_atm_rel_cas(&holder->subchannel_call, 0, 1)) { - goto retry; - } else { - switch (holder->creation_phase) { - case GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING: - fail_locked(exec_ctx, holder); - break; - case GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL: - holder->pick_subchannel(exec_ctx, holder->pick_subchannel_arg, NULL, - 0, &holder->connected_subchannel, NULL); - break; - } - gpr_mu_unlock(&holder->mu); - grpc_transport_stream_op_finish_with_failure(exec_ctx, op); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); - return; - } - } - /* if we don't have a subchannel, try to get one */ - if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && - holder->connected_subchannel == NULL && - op->send_initial_metadata != NULL) { - holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL; - grpc_closure_init(&holder->next_step, subchannel_ready, holder); - GRPC_CALL_STACK_REF(holder->owning_call, "pick_subchannel"); - if (holder->pick_subchannel( - exec_ctx, holder->pick_subchannel_arg, op->send_initial_metadata, - op->send_initial_metadata_flags, &holder->connected_subchannel, - &holder->next_step)) { - holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; - GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); - } - } - /* if we've got a subchannel, then let's ask it to create a call */ - if (holder->creation_phase == GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING && - holder->connected_subchannel != NULL) { - gpr_atm_rel_store( - &holder->subchannel_call, - (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call( - exec_ctx, holder->connected_subchannel, holder->pollset)); - retry_waiting_locked(exec_ctx, holder); - goto retry; - } - /* nothing to be done but wait */ - add_waiting_locked(holder, op); - gpr_mu_unlock(&holder->mu); - GPR_TIMER_END("grpc_subchannel_call_holder_perform_op", 0); -} - -static void subchannel_ready(grpc_exec_ctx *exec_ctx, void *arg, bool success) { - grpc_subchannel_call_holder *holder = arg; - gpr_mu_lock(&holder->mu); - GPR_ASSERT(holder->creation_phase == - GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL); - holder->creation_phase = GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING; - if (holder->connected_subchannel == NULL) { - fail_locked(exec_ctx, holder); - } else if (1 == gpr_atm_acq_load(&holder->subchannel_call)) { - /* already cancelled before subchannel became ready */ - fail_locked(exec_ctx, holder); - } else { - gpr_atm_rel_store( - &holder->subchannel_call, - (gpr_atm)(uintptr_t)grpc_connected_subchannel_create_call( - exec_ctx, holder->connected_subchannel, holder->pollset)); - retry_waiting_locked(exec_ctx, holder); - } - gpr_mu_unlock(&holder->mu); - GRPC_CALL_STACK_UNREF(exec_ctx, holder->owning_call, "pick_subchannel"); -} - -typedef struct { - grpc_transport_stream_op *ops; - size_t nops; - grpc_subchannel_call *call; -} retry_ops_args; - -static void retry_waiting_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder) { - retry_ops_args *a = gpr_malloc(sizeof(*a)); - a->ops = holder->waiting_ops; - a->nops = holder->waiting_ops_count; - a->call = GET_CALL(holder); - if (a->call == CANCELLED_CALL) { - gpr_free(a); - fail_locked(exec_ctx, holder); - return; - } - holder->waiting_ops = NULL; - holder->waiting_ops_count = 0; - holder->waiting_ops_capacity = 0; - GRPC_SUBCHANNEL_CALL_REF(a->call, "retry_ops"); - grpc_exec_ctx_enqueue(exec_ctx, grpc_closure_create(retry_ops, a), true, - NULL); -} - -static void retry_ops(grpc_exec_ctx *exec_ctx, void *args, bool success) { - retry_ops_args *a = args; - size_t i; - for (i = 0; i < a->nops; i++) { - grpc_subchannel_call_process_op(exec_ctx, a->call, &a->ops[i]); - } - GRPC_SUBCHANNEL_CALL_UNREF(exec_ctx, a->call, "retry_ops"); - gpr_free(a->ops); - gpr_free(a); -} - -static void add_waiting_locked(grpc_subchannel_call_holder *holder, - grpc_transport_stream_op *op) { - GPR_TIMER_BEGIN("add_waiting_locked", 0); - if (holder->waiting_ops_count == holder->waiting_ops_capacity) { - holder->waiting_ops_capacity = GPR_MAX(3, 2 * holder->waiting_ops_capacity); - holder->waiting_ops = - gpr_realloc(holder->waiting_ops, holder->waiting_ops_capacity * - sizeof(*holder->waiting_ops)); - } - holder->waiting_ops[holder->waiting_ops_count++] = *op; - GPR_TIMER_END("add_waiting_locked", 0); -} - -static void fail_locked(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder) { - size_t i; - for (i = 0; i < holder->waiting_ops_count; i++) { - grpc_transport_stream_op_finish_with_failure(exec_ctx, - &holder->waiting_ops[i]); - } - holder->waiting_ops_count = 0; -} - -char *grpc_subchannel_call_holder_get_peer( - grpc_exec_ctx *exec_ctx, grpc_subchannel_call_holder *holder) { - grpc_subchannel_call *subchannel_call = GET_CALL(holder); - - if (subchannel_call) { - return grpc_subchannel_call_get_peer(exec_ctx, subchannel_call); - } else { - return NULL; - } -} diff --git a/src/core/lib/channel/subchannel_call_holder.h b/src/core/lib/channel/subchannel_call_holder.h deleted file mode 100644 index 2107a06cd9..0000000000 --- a/src/core/lib/channel/subchannel_call_holder.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * - * Copyright 2015, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - */ - -#ifndef GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H -#define GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H - -#include "src/core/ext/client_config/subchannel.h" - -/** Pick a subchannel for grpc_subchannel_call_holder; - Return 1 if subchannel is available immediately (in which case on_ready - should not be called), or 0 otherwise (in which case on_ready should be - called when the subchannel is available) */ -typedef int (*grpc_subchannel_call_holder_pick_subchannel)( - grpc_exec_ctx *exec_ctx, void *arg, grpc_metadata_batch *initial_metadata, - uint32_t initial_metadata_flags, - grpc_connected_subchannel **connected_subchannel, grpc_closure *on_ready); - -typedef enum { - GRPC_SUBCHANNEL_CALL_HOLDER_NOT_CREATING, - GRPC_SUBCHANNEL_CALL_HOLDER_PICKING_SUBCHANNEL -} grpc_subchannel_call_holder_creation_phase; - -/** Wrapper for holding a pointer to grpc_subchannel_call, and the - associated machinery to create such a pointer. - Handles queueing of stream ops until a call object is ready, waiting - for initial metadata before trying to create a call object, - and handling cancellation gracefully. - - The channel filter uses this as their call_data. */ -typedef struct grpc_subchannel_call_holder { - /** either 0 for no call, 1 for cancelled, or a pointer to a - grpc_subchannel_call */ - gpr_atm subchannel_call; - /** Helper function to choose the subchannel on which to create - the call object. Channel filter delegates to the load - balancing policy (once it's ready). */ - grpc_subchannel_call_holder_pick_subchannel pick_subchannel; - void *pick_subchannel_arg; - - gpr_mu mu; - - grpc_subchannel_call_holder_creation_phase creation_phase; - grpc_connected_subchannel *connected_subchannel; - grpc_pollset *pollset; - - grpc_transport_stream_op *waiting_ops; - size_t waiting_ops_count; - size_t waiting_ops_capacity; - - grpc_closure next_step; - - grpc_call_stack *owning_call; -} grpc_subchannel_call_holder; - -void grpc_subchannel_call_holder_init( - grpc_subchannel_call_holder *holder, - grpc_subchannel_call_holder_pick_subchannel pick_subchannel, - void *pick_subchannel_arg, grpc_call_stack *owning_call); -void grpc_subchannel_call_holder_destroy(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder); - -void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder, - grpc_transport_stream_op *op); -char *grpc_subchannel_call_holder_get_peer(grpc_exec_ctx *exec_ctx, - grpc_subchannel_call_holder *holder); - -#endif /* GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H */ diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py index 292882daf2..2ed0b1e520 100644 --- a/src/python/grpcio/grpc_core_dependencies.py +++ b/src/python/grpcio/grpc_core_dependencies.py @@ -97,6 +97,7 @@ CORE_SOURCE_FILES = [ 'src/core/ext/client_config/resolver_factory.c', 'src/core/ext/client_config/resolver_registry.c', 'src/core/ext/client_config/subchannel.c', + 'src/core/ext/client_config/subchannel_call_holder.c', 'src/core/ext/client_config/subchannel_index.c', 'src/core/ext/client_config/uri_parser.c', 'src/core/ext/lb_policy/grpclb/load_balancer_api.c', @@ -137,7 +138,6 @@ CORE_SOURCE_FILES = [ 'src/core/lib/channel/connected_channel.c', 'src/core/lib/channel/http_client_filter.c', 'src/core/lib/channel/http_server_filter.c', - 'src/core/lib/channel/subchannel_call_holder.c', 'src/core/lib/compression/compression_algorithm.c', 'src/core/lib/compression/message_compress.c', 'src/core/lib/debug/trace.c', diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal index d62327d671..bbb464d865 100644 --- a/tools/doxygen/Doxyfile.core.internal +++ b/tools/doxygen/Doxyfile.core.internal @@ -791,6 +791,7 @@ src/core/ext/client_config/resolver.h \ src/core/ext/client_config/resolver_factory.h \ src/core/ext/client_config/resolver_registry.h \ src/core/ext/client_config/subchannel.h \ +src/core/ext/client_config/subchannel_call_holder.h \ src/core/ext/client_config/subchannel_index.h \ src/core/ext/client_config/uri_parser.h \ src/core/ext/lb_policy/grpclb/load_balancer_api.h \ @@ -824,7 +825,6 @@ src/core/lib/channel/connected_channel.h \ src/core/lib/channel/context.h \ src/core/lib/channel/http_client_filter.h \ src/core/lib/channel/http_server_filter.h \ -src/core/lib/channel/subchannel_call_holder.h \ src/core/lib/compression/algorithm_metadata.h \ src/core/lib/compression/message_compress.h \ src/core/lib/debug/trace.h \ @@ -931,6 +931,7 @@ src/core/ext/client_config/resolver.c \ src/core/ext/client_config/resolver_factory.c \ src/core/ext/client_config/resolver_registry.c \ src/core/ext/client_config/subchannel.c \ +src/core/ext/client_config/subchannel_call_holder.c \ src/core/ext/client_config/subchannel_index.c \ src/core/ext/client_config/uri_parser.c \ src/core/ext/lb_policy/grpclb/load_balancer_api.c \ @@ -971,7 +972,6 @@ src/core/lib/channel/compress_filter.c \ src/core/lib/channel/connected_channel.c \ src/core/lib/channel/http_client_filter.c \ src/core/lib/channel/http_server_filter.c \ -src/core/lib/channel/subchannel_call_holder.c \ src/core/lib/compression/compression_algorithm.c \ src/core/lib/compression/message_compress.c \ src/core/lib/debug/trace.c \ diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json index 59e792b372..c1f4ab833f 100644 --- a/tools/run_tests/sources_and_headers.json +++ b/tools/run_tests/sources_and_headers.json @@ -4019,6 +4019,7 @@ "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -4052,7 +4053,6 @@ "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", @@ -4194,6 +4194,8 @@ "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.c", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.c", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.c", @@ -4267,8 +4269,6 @@ "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.c", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.c", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", @@ -4633,6 +4633,7 @@ "src/core/ext/client_config/resolver_factory.h", "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.h", "src/core/ext/lb_policy/grpclb/load_balancer_api.h", @@ -4666,7 +4667,6 @@ "src/core/lib/channel/context.h", "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/message_compress.h", "src/core/lib/debug/trace.h", @@ -4793,6 +4793,8 @@ "src/core/ext/client_config/resolver_registry.h", "src/core/ext/client_config/subchannel.c", "src/core/ext/client_config/subchannel.h", + "src/core/ext/client_config/subchannel_call_holder.c", + "src/core/ext/client_config/subchannel_call_holder.h", "src/core/ext/client_config/subchannel_index.c", "src/core/ext/client_config/subchannel_index.h", "src/core/ext/client_config/uri_parser.c", @@ -4864,8 +4866,6 @@ "src/core/lib/channel/http_client_filter.h", "src/core/lib/channel/http_server_filter.c", "src/core/lib/channel/http_server_filter.h", - "src/core/lib/channel/subchannel_call_holder.c", - "src/core/lib/channel/subchannel_call_holder.h", "src/core/lib/compression/algorithm_metadata.h", "src/core/lib/compression/compression_algorithm.c", "src/core/lib/compression/message_compress.c", diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj index c649463873..5599e0ecd6 100644 --- a/vsprojects/vcxproj/grpc/grpc.vcxproj +++ b/vsprojects/vcxproj/grpc/grpc.vcxproj @@ -300,6 +300,7 @@ + @@ -333,7 +334,6 @@ - @@ -465,6 +465,8 @@ + + @@ -545,8 +547,6 @@ - - diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters index 47a030e47e..e49b8447d8 100644 --- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters +++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters @@ -70,6 +70,9 @@ src\core\ext\client_config + + src\core\ext\client_config + src\core\ext\client_config @@ -190,9 +193,6 @@ src\core\lib\channel - - src\core\lib\channel - src\core\lib\compression @@ -584,6 +584,9 @@ src\core\ext\client_config + + src\core\ext\client_config + src\core\ext\client_config @@ -683,9 +686,6 @@ src\core\lib\channel - - src\core\lib\channel - src\core\lib\compression diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj index fe1331f300..ad9589d347 100644 --- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj +++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj @@ -290,6 +290,7 @@ + @@ -323,7 +324,6 @@ - @@ -441,6 +441,8 @@ + + @@ -517,8 +519,6 @@ - - diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters index 7915662132..c26b8befd8 100644 --- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters +++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters @@ -70,6 +70,9 @@ src\core\ext\client_config + + src\core\ext\client_config + src\core\ext\client_config @@ -184,9 +187,6 @@ src\core\lib\channel - - src\core\lib\channel - src\core\lib\compression @@ -521,6 +521,9 @@ src\core\ext\client_config + + src\core\ext\client_config + src\core\ext\client_config @@ -620,9 +623,6 @@ src\core\lib\channel - - src\core\lib\channel - src\core\lib\compression -- cgit v1.2.3 From c7b152eec202084b5f66f9a38dd8eec99230c121 Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Tue, 5 Apr 2016 12:44:20 -0700 Subject: Fix include guards --- src/core/ext/client_config/subchannel_call_holder.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/core/ext/client_config/subchannel_call_holder.h b/src/core/ext/client_config/subchannel_call_holder.h index 2107a06cd9..9299908788 100644 --- a/src/core/ext/client_config/subchannel_call_holder.h +++ b/src/core/ext/client_config/subchannel_call_holder.h @@ -31,8 +31,8 @@ * */ -#ifndef GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H -#define GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H +#ifndef GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H +#define GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H #include "src/core/ext/client_config/subchannel.h" @@ -95,4 +95,4 @@ void grpc_subchannel_call_holder_perform_op(grpc_exec_ctx *exec_ctx, char *grpc_subchannel_call_holder_get_peer(grpc_exec_ctx *exec_ctx, grpc_subchannel_call_holder *holder); -#endif /* GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H */ +#endif /* GRPC_CORE_EXT_CLIENT_CONFIG_SUBCHANNEL_CALL_HOLDER_H */ -- cgit v1.2.3 From 978161549032df14c24b6409554d1af6f28b45cd Mon Sep 17 00:00:00 2001 From: Craig Tiller Date: Tue, 5 Apr 2016 13:39:00 -0700 Subject: clang-fmt --- src/core/ext/client_config/client_channel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/core/ext/client_config/client_channel.c b/src/core/ext/client_config/client_channel.c index b1c26dc342..93d54fdcfe 100644 --- a/src/core/ext/client_config/client_channel.c +++ b/src/core/ext/client_config/client_channel.c @@ -41,9 +41,9 @@ #include #include +#include "src/core/ext/client_config/subchannel_call_holder.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/channel/connected_channel.h" -#include "src/core/ext/client_config/subchannel_call_holder.h" #include "src/core/lib/iomgr/iomgr.h" #include "src/core/lib/profiling/timers.h" #include "src/core/lib/support/string.h" -- cgit v1.2.3