The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
90 lines
3.3 KiB
90 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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#include <grpc++/config.h> |
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#ifndef GRPC_CXX0X_NO_CHRONO |
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#include <grpc/support/time.h> |
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#include <grpc++/time.h> |
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using std::chrono::duration_cast; |
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using std::chrono::nanoseconds; |
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using std::chrono::seconds; |
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using std::chrono::system_clock; |
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using std::chrono::high_resolution_clock; |
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namespace grpc { |
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void Timepoint2Timespec(const system_clock::time_point& from, |
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gpr_timespec* to) { |
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system_clock::duration deadline = from.time_since_epoch(); |
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seconds secs = duration_cast<seconds>(deadline); |
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if (from == system_clock::time_point::max() || |
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secs.count() >= gpr_inf_future.tv_sec || secs.count() < 0) { |
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*to = gpr_inf_future; |
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return; |
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} |
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nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs); |
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to->tv_sec = secs.count(); |
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to->tv_nsec = nsecs.count(); |
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} |
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void TimepointHR2Timespec(const high_resolution_clock::time_point& from, |
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gpr_timespec* to) { |
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high_resolution_clock::duration deadline = from.time_since_epoch(); |
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seconds secs = duration_cast<seconds>(deadline); |
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if (from == high_resolution_clock::time_point::max() || |
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secs.count() >= gpr_inf_future.tv_sec || secs.count() < 0) { |
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*to = gpr_inf_future; |
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return; |
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} |
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nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs); |
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to->tv_sec = secs.count(); |
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to->tv_nsec = nsecs.count(); |
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} |
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system_clock::time_point Timespec2Timepoint(gpr_timespec t) { |
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if (gpr_time_cmp(t, gpr_inf_future) == 0) { |
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return system_clock::time_point::max(); |
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} |
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system_clock::time_point tp; |
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tp += duration_cast<system_clock::time_point::duration>(seconds(t.tv_sec)); |
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tp += |
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duration_cast<system_clock::time_point::duration>(nanoseconds(t.tv_nsec)); |
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return tp; |
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} |
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} // namespace grpc |
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#endif // !GRPC_CXX0X_NO_CHRONO
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