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