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/*
*
* 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.
*
*/
#ifndef GRPCPP_IMPL_CODEGEN_TIME_H
#define GRPCPP_IMPL_CODEGEN_TIME_H
#if defined(__GNUC__)
#pragma GCC system_header
#endif
#include <chrono>
#include <grpc/impl/codegen/grpc_types.h>
#include <grpcpp/impl/codegen/config.h>
namespace grpc {
/** If you are trying to use CompletionQueue::AsyncNext with a time class that
isn't either gpr_timespec or std::chrono::system_clock::time_point, you
will most likely be looking at this comment as your compiler will have
fired an error below. In order to fix this issue, you have two potential
solutions:
1. Use gpr_timespec or std::chrono::system_clock::time_point instead
2. Specialize the TimePoint class with whichever time class that you
want to use here. See below for two examples of how to do this.
*/
template <typename T>
class TimePoint {
public:
// If you see the error with methods below, you may need either
// i) using the existing types having a conversion class such as
// gpr_timespec and std::chrono::system_clock::time_point or
// ii) writing a new TimePoint<YourType> to address your case.
TimePoint(const T& /*time*/) = delete;
gpr_timespec raw_time() = delete;
};
template <>
class TimePoint<gpr_timespec> {
public:
TimePoint(const gpr_timespec& time) : time_(time) {}
gpr_timespec raw_time() { return time_; }
private:
gpr_timespec time_;
};
} // namespace grpc
namespace grpc {
// from and to should be absolute time.
void Timepoint2Timespec(const std::chrono::system_clock::time_point& from,
gpr_timespec* to);
void TimepointHR2Timespec(
const std::chrono::high_resolution_clock::time_point& from,
gpr_timespec* to);
std::chrono::system_clock::time_point Timespec2Timepoint(gpr_timespec t);
template <>
class TimePoint<std::chrono::system_clock::time_point> {
public:
TimePoint(const std::chrono::system_clock::time_point& time) {
Timepoint2Timespec(time, &time_);
}
gpr_timespec raw_time() const { return time_; }
private:
gpr_timespec time_;
};
} // namespace grpc
#endif // GRPCPP_IMPL_CODEGEN_TIME_H
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