mirror of https://code.videolan.org/videolan/vlc
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*****************************************************************************
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* timespec_get.c: C11 timespec_get() replacement
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*****************************************************************************
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* Copyright © 2015 Rémi Denis-Courmont
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifdef _WIN32
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#include <windows.h>
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int timespec_get(struct timespec *ts, int base)
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{
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FILETIME ft;
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ULARGE_INTEGER s;
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ULONGLONG t;
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if (base != TIME_UTC)
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return 0;
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GetSystemTimeAsFileTime(&ft);
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s.LowPart = ft.dwLowDateTime;
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s.HighPart = ft.dwHighDateTime;
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t = s.QuadPart - 116444736000000000ULL;
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ts->tv_sec = t / 10000000;
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ts->tv_nsec = ((int) (t % 10000000)) * 100;
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return base;
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}
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#else /* !_WIN32 */
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#include <time.h>
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#include <unistd.h> /* _POSIX_TIMERS */
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#ifndef _POSIX_TIMERS
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#define _POSIX_TIMERS (-1)
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#endif
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#if (_POSIX_TIMERS <= 0)
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# include <sys/time.h> /* gettimeofday() */
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#endif
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int timespec_get(struct timespec *ts, int base)
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{
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switch (base)
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{
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case TIME_UTC:
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#if (_POSIX_TIMERS >= 0)
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if (clock_gettime(CLOCK_REALTIME, ts) == 0)
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break;
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#endif
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#if (_POSIX_TIMERS <= 0)
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{
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struct timeval tv;
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if (gettimeofday(&tv, NULL) == 0)
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{
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ts->tv_sec = tv.tv_sec;
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ts->tv_nsec = tv.tv_usec * 1000;
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break;
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}
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}
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#endif
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/* fall through */
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default:
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return 0;
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}
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return base;
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}
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#endif /* !_WIN32 */
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