mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/* PipeWire
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* Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <time.h>
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#include <spa/utils/defs.h>
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#include <pipewire/log.h>
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#include <pulse/timeval.h>
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#include <pulse/rtclock.h>
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#include "internal.h"
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SPA_EXPORT
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pa_usec_t pa_rtclock_now(void)
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{
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struct timespec ts;
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pa_usec_t res;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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res = (ts.tv_sec * SPA_USEC_PER_SEC) + (ts.tv_nsec / SPA_NSEC_PER_USEC);
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return res;
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}
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static struct timeval *pa_rtclock_get(struct timeval *tv)
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{
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struct timespec ts;
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pa_assert(tv);
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clock_gettime(CLOCK_MONOTONIC, &ts);
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tv->tv_sec = ts.tv_sec;
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tv->tv_usec = ts.tv_nsec / PA_NSEC_PER_USEC;
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return tv;
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}
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struct timeval* pa_rtclock_from_wallclock(struct timeval *tv)
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{
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struct timeval wc_now, rt_now;
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pa_assert(tv);
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pa_gettimeofday(&wc_now);
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pa_rtclock_get(&rt_now);
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if (pa_timeval_cmp(&wc_now, tv) < 0)
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pa_timeval_add(&rt_now, pa_timeval_diff(tv, &wc_now));
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else
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pa_timeval_sub(&rt_now, pa_timeval_diff(&wc_now, tv));
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*tv = rt_now;
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return tv;
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}
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struct timeval* pa_rtclock_to_wallclock(struct timeval *tv)
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{
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struct timeval wc_now, rt_now;
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pa_assert(tv);
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pa_gettimeofday(&wc_now);
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pa_rtclock_get(&rt_now);
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if (pa_timeval_cmp(&rt_now, tv) < 0)
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pa_timeval_add(&wc_now, pa_timeval_diff(tv, &rt_now));
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else
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pa_timeval_sub(&wc_now, pa_timeval_diff(&rt_now, tv));
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*tv = wc_now;
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return tv;
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}
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struct timeval* pa_timeval_rtstore(struct timeval *tv, pa_usec_t v, bool rtclock)
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{
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pa_assert(tv);
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if (v == PA_USEC_INVALID)
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return NULL;
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pa_timeval_store(tv, v);
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if (rtclock)
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tv->tv_usec |= PA_TIMEVAL_RTCLOCK;
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else
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pa_rtclock_to_wallclock(tv);
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return tv;
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}
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