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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup bli
*/
#include "PIL_time.h"
#ifdef WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
double PIL_check_seconds_timer(void)
{
static int hasperfcounter = -1; /* (-1 == unknown) */
static double perffreq;
if (hasperfcounter == -1) {
__int64 ifreq;
hasperfcounter = QueryPerformanceFrequency((LARGE_INTEGER *)&ifreq);
perffreq = (double)ifreq;
}
if (hasperfcounter) {
__int64 count;
QueryPerformanceCounter((LARGE_INTEGER *)&count);
return count / perffreq;
}
else {
static double accum = 0.0;
static int ltick = 0;
int ntick = GetTickCount();
if (ntick < ltick) {
accum += (0xFFFFFFFF - ltick + ntick) / 1000.0;
}
else {
accum += (ntick - ltick) / 1000.0;
}
ltick = ntick;
return accum;
}
}
long int PIL_check_seconds_timer_i(void)
{
return (long int)PIL_check_seconds_timer();
}
void PIL_sleep_ms(int ms)
{
Sleep(ms);
}
#else
# include <sys/time.h>
# include <unistd.h>
double PIL_check_seconds_timer(void)
{
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
return ((double)tv.tv_sec + tv.tv_usec / 1000000.0);
}
long int PIL_check_seconds_timer_i(void)
{
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
return tv.tv_sec;
}
void PIL_sleep_ms(int ms)
{
if (ms >= 1000) {
sleep(ms / 1000);
ms = (ms % 1000);
}
usleep(ms * 1000);
}
#endif
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