src/core/ext/filters/client_channel/client_channel_plugin.cc

   1 /*
   2  *
   3  * Copyright 2015 gRPC authors.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  */
  18
  19 #include <grpc/support/port_platform.h>
  20
  21 #include <limits.h>
  22 #include <stdbool.h>
  23 #include <string.h>
  24
  25 #include <grpc/support/alloc.h>
  26
  27 #include "src/core/ext/filters/client_channel/client_channel.h"
  28 #include "src/core/ext/filters/client_channel/client_channel_channelz.h"
  29 #include "src/core/ext/filters/client_channel/global_subchannel_pool.h"
  30 #include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
  31 #include "src/core/ext/filters/client_channel/http_proxy.h"
  32 #include "src/core/ext/filters/client_channel/lb_policy_registry.h"
  33 #include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
  34 #include "src/core/ext/filters/client_channel/resolver_registry.h"
  35 #include "src/core/ext/filters/client_channel/resolver_result_parsing.h"
  36 #include "src/core/ext/filters/client_channel/retry_throttle.h"
  37 #include "src/core/lib/surface/channel_init.h"
  38
  39 static bool append_filter(grpc_channel_stack_builder* builder, void* arg) {
  40   const grpc_channel_args* args =
  41       grpc_channel_stack_builder_get_channel_arguments(builder);
  42   grpc_arg args_to_add[] = {
  43       grpc_core::channelz::ClientChannelNode::CreateChannelArg()};
  44   grpc_channel_args* new_args = grpc_channel_args_copy_and_add(
  45       args, args_to_add, GPR_ARRAY_SIZE(args_to_add));
  46   grpc_channel_stack_builder_set_channel_arguments(builder, new_args);
  47   grpc_channel_args_destroy(new_args);
  48   return grpc_channel_stack_builder_append_filter(
  49       builder, static_cast<const grpc_channel_filter*>(arg), nullptr, nullptr);
  50 }
  51
  52 void grpc_client_channel_init(void) {
  53   grpc_core::ServiceConfig::Init();
  54   grpc_core::internal::ClientChannelServiceConfigParser::Register();
  55   grpc_core::LoadBalancingPolicyRegistry::Builder::InitRegistry();
  56   grpc_core::ResolverRegistry::Builder::InitRegistry();
  57   grpc_core::internal::ServerRetryThrottleMap::Init();
  58   grpc_proxy_mapper_registry_init();
  59   grpc_register_http_proxy_mapper();
  60   grpc_core::GlobalSubchannelPool::Init();
  61   grpc_channel_init_register_stage(
  62       GRPC_CLIENT_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, append_filter,
  63       (void*)&grpc_client_channel_filter);
  64   grpc_http_connect_register_handshaker_factory();
  65 }
  66
  67 void grpc_client_channel_shutdown(void) {
  68   grpc_core::GlobalSubchannelPool::Shutdown();
  69   grpc_channel_init_shutdown();
  70   grpc_proxy_mapper_registry_shutdown();
  71   grpc_core::internal::ServerRetryThrottleMap::Shutdown();
  72   grpc_core::ResolverRegistry::Builder::ShutdownRegistry();
  73   grpc_core::LoadBalancingPolicyRegistry::Builder::ShutdownRegistry();
  74   grpc_core::ServiceConfig::Shutdown();
  75 }