conversions.hpp

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// SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2016-2018, Intel Corporation */
 
#ifndef LIBPMEMOBJ_CPP_CONVERSIONS_HPP
#define LIBPMEMOBJ_CPP_CONVERSIONS_HPP
 
#include <chrono>
#include <ctime>
 
namespace pmem
{
 
namespace detail
{
 
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 */