93 lines
3.4 KiB
C++
93 lines
3.4 KiB
C++
/*
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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(GPR_CLOCK_REALTIME).tv_sec ||
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secs.count() < 0) {
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*to = gpr_inf_future(GPR_CLOCK_REALTIME);
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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(GPR_CLOCK_REALTIME).tv_sec ||
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secs.count() < 0) {
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*to = gpr_inf_future(GPR_CLOCK_REALTIME);
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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(GPR_CLOCK_REALTIME)) == 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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