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add new API pa_rtclock_from_wallclock()

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2234 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2008-04-11 16:21:13 +00:00
parent e1c1a782b6
commit 6cddf6135c
2 changed files with 23 additions and 0 deletions
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21
src/pulsecore/rtclock.c
View file

@ -96,3 +96,24 @@ pa_usec_t pa_rtclock_usec(void) {
return pa_timeval_load(pa_rtclock_get(&tv)); return pa_timeval_load(pa_rtclock_get(&tv));
} }
struct timeval* pa_rtclock_from_wallclock(struct timeval *tv) {
#ifdef HAVE_CLOCK_GETTIME
struct timeval wc_now, rt_now;
pa_gettimeofday(&wc_now);
pa_rtclock_get(&rt_now);
pa_assert(tv);
if (pa_timeval_cmp(&wc_now, tv) < 0)
pa_timeval_add(&rt_now, pa_timeval_diff(tv, &wc_now));
else
pa_timeval_sub(&rt_now, pa_timeval_diff(&wc_now, tv));
*tv = rt_now;
#endif
return tv;
}

2
src/pulsecore/rtclock.h
View file

@ -40,4 +40,6 @@ pa_bool_t pa_rtclock_hrtimer(void);
/* timer with a resolution better than this are considered high-resolution */ /* timer with a resolution better than this are considered high-resolution */
#define PA_HRTIMER_THRESHOLD_USEC 10 #define PA_HRTIMER_THRESHOLD_USEC 10
struct timeval* pa_rtclock_from_wallclock(struct timeval *tv);
#endif #endif