60 lines
1018 B
C
60 lines
1018 B
C
#ifndef lint
|
|
static char sccsid[] = "@(#)busy.c 1.1 94/10/31 SMI"; /* from UCB 4.1 07/04/83 */
|
|
#endif
|
|
|
|
/*
|
|
* busy: print an indication of how busy the system is for games.
|
|
*/
|
|
#ifndef MAX
|
|
# define MAX 30
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
main(argc, argv)
|
|
char **argv;
|
|
{
|
|
double la[3];
|
|
double max;
|
|
|
|
loadav(la);
|
|
max = la[0];
|
|
if (la[1] > max) max = la[1];
|
|
if (la[2] > max) max = la[2];
|
|
if (argc > 1)
|
|
printf("1=%g, 5=%g, 15=%g, max=%g\n", la[0], la[1], la[2], max);
|
|
if (max > MAX)
|
|
printf("100\n"); /* incredibly high, no games allowed */
|
|
else
|
|
printf("0\n");
|
|
exit(0);
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
#include <sys/types.h>
|
|
#include <a.out.h>
|
|
|
|
struct nlist nl[] = {
|
|
{ "_avenrun" },
|
|
{ 0 },
|
|
};
|
|
|
|
loadav(avenrun)
|
|
double *avenrun;
|
|
{
|
|
register int i;
|
|
int kmem;
|
|
|
|
if ((kmem = open("/dev/kmem", 0)) < 0) {
|
|
fprintf(stderr, "No kmem\n");
|
|
exit(1);
|
|
}
|
|
nlist("/vmunix", nl);
|
|
if (nl[0].n_type==0) {
|
|
fprintf(stderr, "No namelist\n");
|
|
exit(1);
|
|
}
|
|
|
|
lseek(kmem, (long)nl[0].n_value, 0);
|
|
read(kmem, avenrun, 3*sizeof(*avenrun));
|
|
}
|