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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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103 lines
3.3 KiB
103 lines
3.3 KiB
/* |
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#ifndef GRPC_INTERNAL_CPP_UTIL_TIME_H |
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#define GRPC_INTERNAL_CPP_UTIL_TIME_H |
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#include <grpc++/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 that comment as your compiler will have |
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fired the static_assert below. In order to fix that issue, you have two |
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potential 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 that. |
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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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TimePoint(const T& time) { |
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static_assert(false, "You need a specialization of TimePoint"); |
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} |
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gpr_timespec raw_time() { |
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static_assert(false, "You need a specialization of TimePoint"); |
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} |
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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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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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#ifndef GRPC_CXX0X_NO_CHRONO |
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#include <chrono> |
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#include <grpc/support/time.h> |
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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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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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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 // !GRPC_CXX0X_NO_CHRONO |
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#endif // GRPC_INTERNAL_CPP_UTIL_TIME_H
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