/* $Header: /home/yav/catty/fkiss/RCS/timer.c,v 1.4 2000/08/24 02:25:38 yav Exp $
 * Time control routine
 * written by yav <yav@bigfoot.com>
 * 
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <X11/Xos.h>
#include <stdio.h>
#include "config.h"

#include "timer.h"

char id_timer[] = "$Id: timer.c,v 1.4 2000/08/24 02:25:38 yav Exp $";

long diff_time(p1, p0)
     struct TMV *p1;
     struct TMV *p0;
{
  struct TMV tm;
  
  tm.tv_sec = p1->tv_sec - p0->tv_sec;
  tm.tv_usec = p1->tv_usec - p0->tv_usec;
  if (tm.tv_usec < 0) {
    tm.tv_usec += 1000000;
    tm.tv_sec--;
  }
  if (tm.tv_sec > 86400L)	/* 24 hour */
    tm.tv_sec = 86400L;
  return tm.tv_sec * 1000 + tm.tv_usec / 1000;
}

void add_time(p, n)
     struct TMV *p;
     long n;
{
  p->tv_sec += n / 1000;
  p->tv_usec += (n % 1000) * 1000;
  if (p->tv_usec < 0) {
    p->tv_usec += 1000000;
    p->tv_sec--;
  } else if (p->tv_usec >= 1000000) {
    p->tv_usec -= 1000000;
    p->tv_sec++;
  }
}

/* End of file */