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https://github.com/GerbilSoft/rom-properties.git
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137a7c0f5f
It seems these were only ever used in librpbase/TextOut_text.cpp. The UI frontends use functions specific to the UI framework in use. libfmt's <fmt/chrono.h> header has its own fmt::gmtime() and fmt::localtime() wrappers, which do basically the same thing as time_r.h did: _r() if available, or _s() on Windows; and fall back to the non-reentrant version as a last resort. CMakeLists.txt: Remove the gmtime_r() and localtime_r() checks.
54 lines
1.7 KiB
C
54 lines
1.7 KiB
C
/***************************************************************************
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* ROM Properties Page shell extension. *
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* time_r.h: Workaround for missing time functions. *
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* *
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* Copyright (c) 2017-2023 by David Korth. *
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* SPDX-License-Identifier: GPL-2.0-or-later *
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***************************************************************************/
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#pragma once
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#include "config.libc.h"
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// _POSIX_C_SOURCE is required for *_r() on MinGW-w64.
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// However, this breaks snprintf() on FreeBSD when using clang/libc++,
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// so only define it on Windows.
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// Reference: https://github.com/pocoproject/poco/issues/1045#issuecomment-245987081
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#ifdef _WIN32
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# ifndef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 1
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# endif
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#endif /* _WIN32 */
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#include <time.h>
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/** timegm() **/
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/**
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* Linux, Mac OS X, and other Unix-like operating systems have a
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* function timegm() that converts `struct tm` to `time_t`.
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*
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* MSVCRT's equivalent function is _mkgmtime(). Note that it might
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* write to the original `struct tm`, so we'll need to make a copy.
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*
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* NOTE: timegm() is NOT part of *any* standard!
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*/
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#if !defined(HAVE_TIMEGM)
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static inline time_t timegm(struct tm *tm)
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{
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struct tm my_tm;
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my_tm = *tm;
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#if defined(HAVE__MKGMTIME64)
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# define USING_MSVCRT_MKGMTIME 1
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return _mkgmtime64(&my_tm);
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#elif defined(HAVE__MKGMTIME32)
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# define USING_MSVCRT_MKGMTIME 1
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return _mkgmtime32(&my_tm);
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#elif defined(HAVE__MKGMTIME)
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# define USING_MSVCRT_MKGMTIME 1
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return _mkgmtime(&my_tm);
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#else
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# error timegm() or equivalent function not found.
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#endif
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}
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#endif /* !HAVE_TIMEGM */
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