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/* fireload_cpu .. accessory to wmfire - Zinx Verituse */
/* e-mail @ zinx@linuxfreak.com */
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <string.h>
#ifdef __NetBSD__
/*********************************************************************************
* This NetBSD load code is by Hubert Feyrer, not me. Thank him, NetBSD fans ;) *
*********************************************************************************/
int getload(int cpunum, int shownice) {
double load;
getloadavg(&load, 1);
return (int)(load * 100);
}
#else /* use linux code */
int getload(int cpunum, int shownice) {
static int lastloadstuff = 0, lastidle = 0, lastnice = 0;
int loadline = 0, loadstuff = 0, nice = 0, idle = 0;
FILE *stat = fopen("/proc/stat", "r");
char temp[128], *p;
if (!stat) return 100;
while (fgets(temp, 128, stat)) {
if (!strncmp(temp, "cpu", 3) && (temp[3] == ' ' && cpunum == 0) || (temp[3] != ' ' && atol(&temp[3]) == cpunum)) {
p = strtok(temp, " \t\n");
loadstuff = atol(p = strtok(NULL, " \t\n"));
nice = atol(p = strtok(NULL, " \t\n"));
loadstuff += atol(p = strtok(NULL, " \t\n"));
idle = atol(p = strtok(NULL, " \t\n"));
break;
}
}
fclose(stat);
if (!lastloadstuff && !lastidle && !lastnice) {
lastloadstuff = loadstuff; lastidle = idle; lastnice = nice;
return 0;
}
if (shownice) {
loadline = (loadstuff-lastloadstuff)+(idle-lastidle);
} else {
loadline = (loadstuff-lastloadstuff)+(nice-lastnice)+(idle-lastidle);
}
if (loadline)
loadline = ((loadstuff-lastloadstuff)*100)/loadline;
else loadline = 100;
lastloadstuff = loadstuff; lastidle = idle; lastnice = nice;
return loadline;
}
#endif
void do_help(char *prgname) {
printf("%s [-c<cpunum>] [-n] [-h]\n", prgname);
}
int main(int argc, char *argv[]) {
int ch, cpunum = 0, shownice = 1;
while ((ch = getopt(argc, argv, "c:hn")) != EOF) {
switch (ch) {
case 'c':
cpunum = atoi(optarg);
break;
case 'n':
shownice = 0;
break;
default: /* h is handled here */
do_help(argv[0]);
exit(0);
}
}
printf("fireload\t0\t100\n"); fflush(stdout);
for (;;) {
ch = getload(cpunum, shownice);
printf("%d\t%d\n", ch, ch); fflush(stdout);
usleep(100000);
}
exit(0);
}
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