1 /* 2 * 3 * Copyright 2018 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 #ifndef GRPCPP_EXT_SERVER_LOAD_REPORTING_H 20 #define GRPCPP_EXT_SERVER_LOAD_REPORTING_H 21 22 #include <grpc/support/port_platform.h> 23 24 #include <grpc/load_reporting.h> 25 #include <grpcpp/impl/codegen/config.h> 26 #include <grpcpp/impl/codegen/server_context.h> 27 #include <grpcpp/impl/server_builder_option.h> 28 29 namespace grpc { 30 namespace load_reporter { 31 namespace experimental { 32 33 // The ServerBuilderOption to enable server-side load reporting feature. To 34 // enable the feature, please make sure the binary builds with the 35 // grpcpp_server_load_reporting library and set this option in the 36 // ServerBuilder. 37 class LoadReportingServiceServerBuilderOption 38 : public grpc::ServerBuilderOption { 39 public: 40 void UpdateArguments(::grpc::ChannelArguments* args) override; 41 void UpdatePlugins(std::vector<std::unique_ptr<::grpc::ServerBuilderPlugin>>* 42 plugins) override; 43 }; 44 45 // Adds the load reporting cost with \a cost_name and \a cost_value in the 46 // trailing metadata of the server context. 47 void AddLoadReportingCost(grpc::ServerContext* ctx, 48 const std::string& cost_name, double cost_value); 49 50 } // namespace experimental 51 } // namespace load_reporter 52 } // namespace grpc 53 54 #endif // GRPCPP_EXT_SERVER_LOAD_REPORTING_H 55