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/*
* MONA
* Copyright (C) 1997-2004 BRICS.
*
* 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.
*/
#define _LANGUAGE_C_PLUS_PLUS
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <signal.h>
#include "timer.h"
const unsigned long hour = 360000;
const unsigned long min = 6000;
const unsigned long sec = 100;
const unsigned long step = 2000; // sec. pr. step
static unsigned long prev, clocks, steps; // CPU time (user+system)
void
refresh(int)
{
unsigned long t = (unsigned long) clock();
clocks += t - prev;
prev = t;
while (clocks >= step*CLOCKS_PER_SEC) {
steps++;
clocks -= step*CLOCKS_PER_SEC;
}
signal(SIGALRM, &refresh);
alarm(step);
}
void
initTimer()
{
clocks = steps = 0;
refresh(0);
}
void
Timer::start()
{
alarm(0);
refresh(0);
tsteps = steps;
tclocks = clocks;
}
void
Timer::stop()
{
alarm(0);
refresh(0);
unsigned long ttsteps = steps;
unsigned long ttclocks = clocks;
if (ttclocks < tclocks) {
ttclocks += step*CLOCKS_PER_SEC;
ttsteps--;
}
res += (ttsteps - tsteps)*step*100 + (ttclocks - tclocks)/(CLOCKS_PER_SEC/100);
}
void
Timer::print()
{
unsigned long t = res, hours, mins, secs;
hours = t / hour;
t -= hours * hour;
mins = t / min;
t -= mins * min;
secs = t / sec;
t -= secs * sec;
printf("%02lu:%02lu:%02lu.%02lu\n", hours, mins, secs, t);
}
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