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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <grpc/support/time.h>
#include <grpcpp/support/config.h>
#include <grpcpp/support/time.h>
using std::chrono::duration_cast;
using std::chrono::high_resolution_clock;
using std::chrono::nanoseconds;
using std::chrono::seconds;
using std::chrono::system_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 = static_cast<int64_t>(secs.count());
to->tv_nsec = static_cast<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 = static_cast<int64_t>(secs.count());
to->tv_nsec = static_cast<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
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