Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / grpc-cloned / deps / grpc / src / core / ext / filters / client_channel / subchannel_pool_interface.cc

diff --git a/legacy-libs/grpc-cloned/deps/grpc/src/core/ext/filters/client_channel/subchannel_pool_interface.cc b/legacy-libs/grpc-cloned/deps/grpc/src/core/ext/filters/client_channel/subchannel_pool_interface.cc
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+++ b/legacy-libs/grpc-cloned/deps/grpc/src/core/ext/filters/client_channel/subchannel_pool_interface.cc
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+//
+//
+// Copyright 2018 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+//
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/subchannel_pool_interface.h"
+
+#include "src/core/lib/gpr/useful.h"
+
+// The subchannel pool to reuse subchannels.
+#define GRPC_ARG_SUBCHANNEL_POOL "grpc.subchannel_pool"
+// The subchannel key ID that is only used in test to make each key unique.
+#define GRPC_ARG_SUBCHANNEL_KEY_TEST_ONLY_ID "grpc.subchannel_key_test_only_id"
+
+namespace grpc_core {
+
+TraceFlag grpc_subchannel_pool_trace(false, "subchannel_pool");
+
+SubchannelKey::SubchannelKey(const grpc_channel_args* args) {
+  Init(args, grpc_channel_args_normalize);
+}
+
+SubchannelKey::~SubchannelKey() {
+  grpc_channel_args_destroy(const_cast<grpc_channel_args*>(args_));
+}
+
+SubchannelKey::SubchannelKey(const SubchannelKey& other) {
+  Init(other.args_, grpc_channel_args_copy);
+}
+
+SubchannelKey& SubchannelKey::operator=(const SubchannelKey& other) {
+  grpc_channel_args_destroy(const_cast<grpc_channel_args*>(args_));
+  Init(other.args_, grpc_channel_args_copy);
+  return *this;
+}
+
+int SubchannelKey::Cmp(const SubchannelKey& other) const {
+  return grpc_channel_args_compare(args_, other.args_);
+}
+
+void SubchannelKey::Init(
+    const grpc_channel_args* args,
+    grpc_channel_args* (*copy_channel_args)(const grpc_channel_args* args)) {
+  args_ = copy_channel_args(args);
+}
+
+namespace {
+
+void* arg_copy(void* p) {
+  auto* subchannel_pool = static_cast<SubchannelPoolInterface*>(p);
+  subchannel_pool->Ref().release();
+  return p;
+}
+
+void arg_destroy(void* p) {
+  auto* subchannel_pool = static_cast<SubchannelPoolInterface*>(p);
+  subchannel_pool->Unref();
+}
+
+int arg_cmp(void* a, void* b) { return GPR_ICMP(a, b); }
+
+const grpc_arg_pointer_vtable subchannel_pool_arg_vtable = {
+    arg_copy, arg_destroy, arg_cmp};
+
+}  // namespace
+
+grpc_arg SubchannelPoolInterface::CreateChannelArg(
+    SubchannelPoolInterface* subchannel_pool) {
+  return grpc_channel_arg_pointer_create(
+      const_cast<char*>(GRPC_ARG_SUBCHANNEL_POOL), subchannel_pool,
+      &subchannel_pool_arg_vtable);
+}
+
+SubchannelPoolInterface*
+SubchannelPoolInterface::GetSubchannelPoolFromChannelArgs(
+    const grpc_channel_args* args) {
+  const grpc_arg* arg = grpc_channel_args_find(args, GRPC_ARG_SUBCHANNEL_POOL);
+  if (arg == nullptr || arg->type != GRPC_ARG_POINTER) return nullptr;
+  return static_cast<SubchannelPoolInterface*>(arg->value.pointer.p);
+}
+
+}  // namespace grpc_core