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/*
* Copyright 2007-2019 Content Management AG
* All rights reserved.
*
* author: Max Kellermann <mk@cm4all.com>
*
* 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.
*
* 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
* FOUNDATION 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.
*/
#ifndef TIME_CONVERT_HXX
#define TIME_CONVERT_HXX
#include <chrono>
/**
* Convert a UTC-based time point to a UTC-based "struct tm".
*
* Throws on error.
*/
struct tm
GmTime(std::chrono::system_clock::time_point tp);
/**
* Convert a UTC-based time point to a local "struct tm".
*
* Throws on error.
*/
struct tm
LocalTime(std::chrono::system_clock::time_point tp);
/**
* Convert a UTC-based "struct tm" to a UTC-based time point.
*/
[[gnu::pure]]
std::chrono::system_clock::time_point
TimeGm(struct tm &tm) noexcept;
/**
* Convert a local "struct tm" to a UTC-based time point.
*/
[[gnu::pure]]
std::chrono::system_clock::time_point
MakeTime(struct tm &tm) noexcept;
[[gnu::pure]]
std::chrono::steady_clock::duration
ToSteadyClockDuration(const struct timeval &tv) noexcept;
#endif
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