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/*
This file is part of Warzone 2100.
Copyright (C) 2008-2010 Warzone 2100 Project
Warzone 2100 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.
Warzone 2100 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 Warzone 2100; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "timer.h"
#include "lib/framework/frame.h"
#if defined(WZ_OS_UNIX)
# include <sys/time.h>
#endif
static double startTimeInMicroSec = 0; // starting time in microseconds
static double endTimeInMicroSec = 0; // ending time in microseconds
static BOOL stopped = false; // stop flag
static struct timeval startCount;
static struct timeval endCount;
// Uses the highest resolution timers avail on windows & linux
void Timer_Init(void)
{
startCount.tv_sec = startCount.tv_usec = 0;
endCount.tv_sec = endCount.tv_usec = 0;
stopped = false;
startTimeInMicroSec = 0;
endTimeInMicroSec = 0;
}
void Timer_start(void)
{
stopped = false; // reset stop flag
gettimeofday(&startCount, NULL);
}
void Timer_stop(void)
{
stopped = true; // set timer stopped flag
gettimeofday(&endCount, NULL);
}
double Timer_getElapsedMicroSecs(void)
{
if (!stopped)
{
gettimeofday(&endCount, NULL);
}
startTimeInMicroSec = (startCount.tv_sec * 1000000.0) + startCount.tv_usec;
endTimeInMicroSec = (endCount.tv_sec * 1000000.0) + endCount.tv_usec;
return endTimeInMicroSec - startTimeInMicroSec;
}
double Timer_getElapsedMilliSecs(void)
{
return Timer_getElapsedMicroSecs() * 0.001;
}
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