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/*
* Copyright 2016-2018, Intel Corporation
*
* 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 the copyright holder 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.
*/
/**
* @file
* Commonly used conversions.
*/
#ifndef LIBPMEMOBJ_CPP_CONVERSIONS_HPP
#define LIBPMEMOBJ_CPP_CONVERSIONS_HPP
#include <chrono>
#include <time.h>
namespace pmem
{
namespace detail
{
/**
* Convert std::chrono::time_point to posix timespec.
*
* @param[in] timepoint point in time to be converted.
*
* @return converted timespec structure.
*/
template <typename Clock, typename Duration = typename Clock::duration>
timespec
timepoint_to_timespec(const std::chrono::time_point<Clock, Duration> &timepoint)
{
timespec ts;
auto rel_duration = timepoint.time_since_epoch();
const auto sec =
std::chrono::duration_cast<std::chrono::seconds>(rel_duration);
ts.tv_sec = sec.count();
ts.tv_nsec = static_cast<long>(
std::chrono::duration_cast<std::chrono::nanoseconds>(
rel_duration - sec)
.count());
return ts;
}
} /* namespace detail */
} /* namespace pmem */
#endif /* LIBPMEMOBJ_CPP_CONVERSIONS_HPP */
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