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/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine 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.
*
* xine 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* WIN32 PORT,
* by Matthew Grooms <elon@altavista.com>
*
* timer.c - Missing unix timer functions
*
*/
#include "stdio.h"
#include "timer.h"
#include <signal.h>
#ifndef SIGALRM
#define SIGALRM 14
#endif
/*
this function returns somewhat
accurate unix time with the data
accurate to the first call to get
of day and the resolution accurate
to ~ miliseconds.
*/
static time_t startseconds = 0;
int gettimeofday( struct timeval *tp, struct timezone *tzp )
{
MMTIME mmtime;
// clock() returns time in miliseconds
if( !startseconds )
startseconds = time( 0 );
timeGetSystemTime( &mmtime, sizeof( mmtime ) );
tp->tv_sec = ( mmtime.u.ms / 1000 ) + startseconds;
tp->tv_usec = ( mmtime.u.ms % 1000 ) * 1000;
return 0;
};
/*
These functions are designed to mimick
a subset of itimer for use with the
alarm signal on win32. This is just
enough for xine to work.
*/
static HANDLE sigalarm = 0;
int setitimer( int which, struct itimerval * value, struct itimerval *ovalue )
{
long int miliseconds;
if( !sigalarm )
sigalarm = CreateEvent( 0, FALSE, TRUE, "SIGALARM" );
miliseconds = value->it_value.tv_usec / 1000;
timeSetEvent( miliseconds, 0, ( LPTIMECALLBACK ) sigalarm, 0, TIME_PERIODIC | TIME_CALLBACK_EVENT_PULSE );
return 0;
}
/*
Wait for sigalarm to wake the thread
*/
int pause( void )
{
WaitForSingleObject( sigalarm, INFINITE );
return 0;
}
int nanosleep( const struct timespec * rqtp, struct timespec * rmtp )
{
Sleep( rqtp->tv_nsec / 1000000 );
return 0;
}
unsigned int sleep( unsigned int seconds )
{
Sleep( seconds * 1000 );
return 0;
}
static UINT alarmid = 0;
void CALLBACK AlarmCallback(UINT wTimerID,
UINT msg,
DWORD dwUser,
DWORD dw1,
DWORD dw2)
{
if (alarmid) {
alarmid = 0;
raise(SIGALRM);
}
}
int alarm( int sec )
{
long int miliseconds;
if (sec) {
if (!alarmid) {
miliseconds = sec * 1000;
timeSetEvent( miliseconds, 0, ( LPTIMECALLBACK ) AlarmCallback, 0, TIME_ONESHOT | TIME_CALLBACK_FUNCTION );
}
}
else {
if (alarmid) {
timeKillEvent(alarmid);
alarmid = 0;
}
}
return 0;
}
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