src/core/client_channel/client_channel_plugin.cc

//
//
// Copyright 2015 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
//

#include <grpc/support/port_platform.h>

#include "absl/types/optional.h"

#include <grpc/impl/channel_arg_names.h>

#include "src/core/client_channel/client_channel_filter.h"
#include "src/core/client_channel/client_channel_service_config.h"
#include "src/core/client_channel/retry_service_config.h"
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/config/core_configuration.h"
#include "src/core/lib/surface/channel_stack_type.h"

namespace grpc_core {

namespace {
bool IsEverythingBelowClientChannelPromiseSafe(const ChannelArgs& args) {
  return !args.GetBool(GRPC_ARG_ENABLE_RETRIES).value_or(true);
}
}  // namespace

void BuildClientChannelConfiguration(CoreConfiguration::Builder* builder) {
  internal::ClientChannelServiceConfigParser::Register(builder);
  internal::RetryServiceConfigParser::Register(builder);
  builder->channel_init()
      ->RegisterFilter(GRPC_CLIENT_CHANNEL,
                       &ClientChannelFilter::kFilterVtableWithPromises)
      .If(IsEverythingBelowClientChannelPromiseSafe)
      .Terminal();
  builder->channel_init()
      ->RegisterFilter(GRPC_CLIENT_CHANNEL,
                       &ClientChannelFilter::kFilterVtableWithoutPromises)
      .IfNot(IsEverythingBelowClientChannelPromiseSafe)
      .Terminal();
}

}  // namespace grpc_core