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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <grpc++/support/config.h>
#ifndef GRPC_CXX0X_NO_CHRONO
#include <grpc/support/time.h>
#include <grpc++/support/time.h>
using std::chrono::duration_cast;
using std::chrono::nanoseconds;
using std::chrono::seconds;
using std::chrono::system_clock;
using std::chrono::high_resolution_clock;
namespace grpc {
void Timepoint2Timespec(const system_clock::time_point& from,
gpr_timespec* to) {
system_clock::duration deadline = from.time_since_epoch();
seconds secs = duration_cast<seconds>(deadline);
if (from == system_clock::time_point::max() ||
secs.count() >= gpr_inf_future(GPR_CLOCK_REALTIME).tv_sec ||
secs.count() < 0) {
*to = gpr_inf_future(GPR_CLOCK_REALTIME);
return;
}
nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
to->tv_sec = (int64_t)secs.count();
to->tv_nsec = (int32_t)nsecs.count();
to->clock_type = GPR_CLOCK_REALTIME;
}
void TimepointHR2Timespec(const high_resolution_clock::time_point& from,
gpr_timespec* to) {
high_resolution_clock::duration deadline = from.time_since_epoch();
seconds secs = duration_cast<seconds>(deadline);
if (from == high_resolution_clock::time_point::max() ||
secs.count() >= gpr_inf_future(GPR_CLOCK_REALTIME).tv_sec ||
secs.count() < 0) {
*to = gpr_inf_future(GPR_CLOCK_REALTIME);
return;
}
nanoseconds nsecs = duration_cast<nanoseconds>(deadline - secs);
to->tv_sec = (int64_t)secs.count();
to->tv_nsec = (int32_t)nsecs.count();
to->clock_type = GPR_CLOCK_REALTIME;
}
system_clock::time_point Timespec2Timepoint(gpr_timespec t) {
if (gpr_time_cmp(t, gpr_inf_future(t.clock_type)) == 0) {
return system_clock::time_point::max();
}
t = gpr_convert_clock_type(t, GPR_CLOCK_REALTIME);
system_clock::time_point tp;
tp += duration_cast<system_clock::time_point::duration>(seconds(t.tv_sec));
tp +=
duration_cast<system_clock::time_point::duration>(nanoseconds(t.tv_nsec));
return tp;
}
} // namespace grpc
#endif // !GRPC_CXX0X_NO_CHRONO
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