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/**************************************************************************************************
$Header: /pub/cvsroot/yencode/lib/timer.c,v 1.3 2002/03/19 06:14:22 bboy Exp $
timer.c: A simple stopwatch-style timer.
Copyright (C) 2002 Don Moore <bboy@bboy.net>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**************************************************************************************************/
#include "misc.h"
static struct timeval _stop_watch; // Our stopwatch
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
TIMER_RESET
Resets the timer.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
void
timer_reset(struct timeval *tv)
{
gettimeofday(tv ? tv : &_stop_watch, NULL);
}
/*--- timer_reset() -----------------------------------------------------------------------------*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
TIMER_ELAPSED
Returns the amount of time elapsed.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
float
timer_elapsed(struct timeval *tv)
{
struct timeval now;
struct timeval *s = tv ? tv : &_stop_watch;
gettimeofday(&now, NULL);
return ((float)((now.tv_sec + now.tv_usec / 1000000.0) - (s->tv_sec + s->tv_usec / 1000000.0)));
}
/*--- timer_elapsed() ---------------------------------------------------------------------------*/
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
TVDIFF
Returns the amount of time elapsed between two timevals.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
float
tvdiff(struct timeval *start, struct timeval *stop)
{
return ((float)((stop->tv_sec + stop->tv_usec / 1000000.0) - (start->tv_sec + start->tv_usec / 1000000.0)));
}
/*--- tvdiff() ----------------------------------------------------------------------------------*/
/* vi:set ts=3: */
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