/* * 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 * * timer.c - Missing unix timer functions * */ #include "stdio.h" #include "timer.h" #include #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; }