/* * * 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 // IWYU pragma: private, include <grpcpp/support/time.h> #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: /* NOLINTNEXTLINE(google-explicit-constructor) */ 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: /* NOLINTNEXTLINE(google-explicit-constructor) */ 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