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/*
* ycpu.c: display a graph of CPU usage obtained from vmstat
* in a [Y]gl window. This program may not run on non-AIX.
*
* (C) Fred Hucht 1994,1995, EMail: fred@hal6000.Uni-Duisburg.DE
*
* Feel free to copy and redistribute in terms of the
* GNU public license.
*/
#include <gl/gl.h>
#include <gl/device.h>
#include <stdio.h>
#include <stdlib.h>
int goon() {
int r = 1;
if(qtest()) {
Int32 dev;
Int16 val;
dev = qread(&val);
switch(dev) {
case WINQUIT:
r = 0; break;
case KEYBD:
switch(val) {
case '\033':
case 'q':
r = 0; break;
}
break;
}
}
return(r);
}
int main(int argc, char *argv[]) {
FILE *p;
char hostname[256], cmd[128];
int X = 200, Y = 200, sec = 1;
putenv("YGL_BS=1");
if(argc > 1) X = atoi(argv[1]);
if(argc > 2) sec = atoi(argv[2]);
prefsize(X+1, Y+1);
gethostname(hostname, sizeof(hostname));
winopen(hostname);
qdevice(KEYBD);
qdevice(WINQUIT);
color(BLACK);
clear();
sprintf(cmd, "vmstat %d", sec);
if(NULL == (p = (FILE*) popen(cmd, "r"))) {
perror("pipe error");
exit(-1);
}
while(goon()) {
short us, sy, id, wa;
short i;
char line[160];
if(NULL == fgets(line, 160, p)) {
perror("fgets error");
exit(-2);
}
if(4 == sscanf(line,
"%*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d %hd %hd %hd %hd",
&us, &sy, &id, &wa)) {
/*printf("%d %d %d %d\n", us, sy, id, wa);*/
rectcopy(1, 0, X, Y, 0, 0);
move2(X, 0);
color(GREEN); rdr2(0, Y/100.0 * us);
color(YELLOW); rdr2(0, Y/100.0 * sy);
color(BLUE); rdr2(0, Y/100.0 * id);
color(RED); rdr2(0, Y/100.0 * wa);
for(i=0; i<=10; i++) pnt2(X, Y/100.0 * 10 * i);
sleep(0);
}
}
gexit();
pclose(p);
exit(0);
}
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