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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
#include "threads.h"
static void get_pthread_time(struct timespec *out_ts)
{
#if defined(_POSIX_TIMERS) && _POSIX_TIMERS > 0
clock_gettime(CLOCK_REALTIME, out_ts);
#else
// OSX
struct timeval tv;
gettimeofday(&tv, NULL);
out_ts->tv_sec = tv.tv_sec;
out_ts->tv_nsec = tv.tv_usec * 1000UL;
#endif
}
static void timespec_add_seconds(struct timespec *ts, double seconds)
{
unsigned long secs = (int)seconds;
unsigned long nsecs = (seconds - secs) * 1000000000UL;
if (nsecs + ts->tv_nsec >= 1000000000UL) {
secs += 1;
nsecs -= 1000000000UL;
}
ts->tv_sec += secs;
ts->tv_nsec += nsecs;
}
// Call pthread_cond_timedwait() with a relative timeout in seconds
int mpthread_cond_timed_wait(pthread_cond_t *cond, pthread_mutex_t *mutex,
double timeout)
{
struct timespec ts;
get_pthread_time(&ts);
timespec_add_seconds(&ts, timeout);
return pthread_cond_timedwait(cond, mutex, &ts);
}
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