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/*
* Copyright (C) 2003-2012 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "clock.h"
#ifdef WIN32
#include <windows.h>
#elif defined(__APPLE__)
#include <mach/mach_time.h>
#else
#include <time.h>
#ifndef CLOCK_MONOTONIC
#include <sys/time.h>
#endif
#endif
unsigned
monotonic_clock_ms(void)
{
#ifdef WIN32
return GetTickCount();
#elif defined(__APPLE__) /* OS X does not define CLOCK_MONOTONIC */
static mach_timebase_info_data_t base;
if (base.denom == 0)
(void)mach_timebase_info(&base);
return (unsigned)((mach_absolute_time() * base.numer)
/ (1000000 * base.denom));
#elif defined(CLOCK_MONOTONIC)
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return ts.tv_sec * 1000 + ts.tv_nsec / 1000000;
#else
/* we have no monotonic clock, fall back to gettimeofday() */
struct timeval tv;
gettimeofday(&tv, 0);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
#endif
}
uint64_t
monotonic_clock_us(void)
{
#ifdef WIN32
LARGE_INTEGER l_value, l_frequency;
if (!QueryPerformanceCounter(&l_value) ||
!QueryPerformanceFrequency(&l_frequency))
return 0;
uint64_t value = l_value.QuadPart;
uint64_t frequency = l_frequency.QuadPart;
if (frequency > 1000000) {
value *= 10000;
value /= frequency / 100;
} else if (frequency < 1000000) {
value *= 10000;
value /= frequency;
value *= 100;
}
return value;
#elif defined(__APPLE__) /* OS X does not define CLOCK_MONOTONIC */
static mach_timebase_info_data_t base;
if (base.denom == 0)
(void)mach_timebase_info(&base);
return ((uint64_t)mach_absolute_time() * (uint64_t)base.numer)
/ (1000 * (uint64_t)base.denom);
#elif defined(CLOCK_MONOTONIC)
struct timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
return (uint64_t)ts.tv_sec * 1000000 + (uint64_t)(ts.tv_nsec / 1000);
#else
/* we have no monotonic clock, fall back to gettimeofday() */
struct timeval tv;
gettimeofday(&tv, 0);
return (uint64_t)tv.tv_sec * 1000 + (uint64_t)tv.tv_usec;
#endif
}
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