| // |
| // |
| // 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 <string.h> |
| |
| #include <cmath> |
| #include <string> |
| |
| #include <grpc/load_reporting.h> |
| #include <grpc/support/log.h> |
| #include <grpcpp/ext/server_load_reporting.h> |
| #include <grpcpp/server_context.h> |
| |
| namespace grpc { |
| namespace load_reporter { |
| namespace experimental { |
| |
| void AddLoadReportingCost(grpc::ServerContext* ctx, |
| const std::string& cost_name, double cost_value) { |
| if (std::isnormal(cost_value)) { |
| std::string buf; |
| buf.resize(sizeof(cost_value) + cost_name.size()); |
| memcpy(&(*buf.begin()), &cost_value, sizeof(cost_value)); |
| memcpy(&(*buf.begin()) + sizeof(cost_value), cost_name.data(), |
| cost_name.size()); |
| ctx->AddTrailingMetadata(GRPC_LB_COST_MD_KEY, buf); |
| } else { |
| gpr_log(GPR_ERROR, "Call metric value is not normal."); |
| } |
| } |
| |
| } // namespace experimental |
| } // namespace load_reporter |
| } // namespace grpc |