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/*
* precise timer routines for Linux/UNIX
* copyright (C) LGB & A'rpi/ASTRAL
*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include "common/common.h"
#include "timer.h"
static clockid_t clk_id;
void mp_sleep_ns(int64_t ns)
{
if (ns < 0)
return;
struct timespec ts;
ts.tv_sec = ns / MP_TIME_S_TO_NS(1);
ts.tv_nsec = ns % MP_TIME_S_TO_NS(1);
nanosleep(&ts, NULL);
}
uint64_t mp_raw_time_ns(void)
{
struct timespec tp = {0};
clock_gettime(clk_id, &tp);
return MP_TIME_S_TO_NS(tp.tv_sec) + tp.tv_nsec;
}
void mp_raw_time_init(void)
{
static const clockid_t clock_ids[] = {
#ifdef CLOCK_MONOTONIC_RAW
CLOCK_MONOTONIC_RAW,
#endif
CLOCK_MONOTONIC,
};
struct timespec tp;
for (int i = 0; i < MP_ARRAY_SIZE(clock_ids); ++i) {
clk_id = clock_ids[i];
if (!clock_gettime(clk_id, &tp))
return;
}
fputs("No clock source available!\n", stderr);
abort();
}
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