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/*
* i-scream libstatgrab
* http://www.i-scream.org
* Copyright (C) 2000-2004 i-scream
*
* 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.
*
* $Id: cpu_usage.c,v 1.11 2005/09/24 13:29:22 tdb Exp $
*/
#include <stdio.h>
#include <statgrab.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char **argv){
extern char *optarg;
int c;
int delay = 1;
sg_cpu_percents *cpu_percent;
while ((c = getopt(argc, argv, "d:")) != -1){
switch (c){
case 'd':
delay = atoi(optarg);
break;
}
}
#ifdef WIN32
delay = delay * 1000;
#endif
/* Initialise statgrab */
sg_init();
/* Drop setuid/setgid privileges. */
if (sg_drop_privileges() != 0) {
perror("Error. Failed to drop privileges");
return 1;
}
/* Throw away the first reading as thats averaged over the machines uptime */
sg_snapshot();
cpu_percent = sg_get_cpu_percents();
/* Clear the screen ready for display the cpu usage */
printf("\033[2J");
while( (cpu_percent = sg_get_cpu_percents()) != NULL){
sg_snapshot();
printf("\033[2;2H%-12s : %6.2f", "User CPU", cpu_percent->user);
printf("\033[3;2H%-12s : %6.2f", "Kernel CPU", cpu_percent->kernel);
printf("\033[4;2H%-12s : %6.2f", "IOWait CPU", cpu_percent->iowait);
printf("\033[5;2H%-12s : %6.2f", "Swap CPU", cpu_percent->swap);
printf("\033[6;2H%-12s : %6.2f", "Nice CPU", cpu_percent->nice);
printf("\033[7;2H%-12s : %6.2f", "Idle CPU", cpu_percent->idle);
fflush(stdout);
sleep(delay);
}
sg_shutdown();
exit(0);
}
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