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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/impl/codegen/port_platform.h>
#include <grpcpp/ext/server_load_reporting.h>
#include <cmath>
#include <grpc/support/log.h>
namespace grpc {
namespace load_reporter {
namespace experimental {
void AddLoadReportingCost(grpc::ServerContext* ctx,
const TString& cost_name, double cost_value) {
if (std::isnormal(cost_value)) {
TString 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
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