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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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89 lines
2.7 KiB
89 lines
2.7 KiB
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// Copyright 2015 gRPC authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// |
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#ifndef GRPCPP_SUPPORT_TIME_H |
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#define GRPCPP_SUPPORT_TIME_H |
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#include <chrono> |
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#include <grpc/impl/grpc_types.h> |
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#include <grpcpp/support/config.h> |
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namespace grpc { |
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/// If you are trying to use CompletionQueue::AsyncNext with a time class that |
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/// isn't either gpr_timespec or std::chrono::system_clock::time_point, you |
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/// will most likely be looking at this comment as your compiler will have |
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/// fired an error below. In order to fix this issue, you have two potential |
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/// solutions: |
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/// 1. Use gpr_timespec or std::chrono::system_clock::time_point instead |
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/// 2. Specialize the TimePoint class with whichever time class that you |
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/// want to use here. See below for two examples of how to do this. |
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/// |
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template <typename T> |
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class TimePoint { |
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public: |
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// If you see the error with methods below, you may need either |
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// i) using the existing types having a conversion class such as |
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// gpr_timespec and std::chrono::system_clock::time_point or |
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// ii) writing a new TimePoint<YourType> to address your case. |
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TimePoint(const T& /*time*/) = delete; |
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gpr_timespec raw_time() = delete; |
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}; |
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template <> |
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class TimePoint<gpr_timespec> { |
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public: |
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// NOLINTNEXTLINE(google-explicit-constructor) |
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TimePoint(const gpr_timespec& time) : time_(time) {} |
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gpr_timespec raw_time() { return time_; } |
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private: |
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gpr_timespec time_; |
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}; |
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} // namespace grpc |
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namespace grpc { |
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// from and to should be absolute time. |
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void Timepoint2Timespec(const std::chrono::system_clock::time_point& from, |
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gpr_timespec* to); |
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void TimepointHR2Timespec( |
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const std::chrono::high_resolution_clock::time_point& from, |
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gpr_timespec* to); |
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std::chrono::system_clock::time_point Timespec2Timepoint(gpr_timespec t); |
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template <> |
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class TimePoint<std::chrono::system_clock::time_point> { |
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public: |
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// NOLINTNEXTLINE(google-explicit-constructor) |
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TimePoint(const std::chrono::system_clock::time_point& time) { |
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Timepoint2Timespec(time, &time_); |
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} |
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gpr_timespec raw_time() const { return time_; } |
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private: |
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gpr_timespec time_; |
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}; |
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} // namespace grpc |
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#endif // GRPCPP_SUPPORT_TIME_H
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