int main()
{
cpu_set_t mask;
sched_getaffinity(0, sizeof(mask), &mask);
//staptest// sched_getaffinity (0, XXXX, XXXX) = NNNN
sched_setaffinity(0, sizeof(mask), &mask);
//staptest// sched_setaffinity (0, XXXX, XXXX) = NNNN
/* Limits testing */
sched_setaffinity(-1, sizeof(mask), &mask);
//staptest// sched_setaffinity (-1, XXXX, XXXX) = NNNN
#ifdef __NR_sched_setaffinity
// glibc mangles this one
__sched_setaffinity(0, (size_t)-1, &mask);
//staptest// sched_setaffinity (0, 4294967295, XXXX) = NNNN
// glibc mangles this one also
__sched_setaffinity(0, sizeof(mask), (cpu_set_t *)-1);
#ifdef __s390__
//staptest// sched_setaffinity (0, XXXX, 0x[7]?[f]+) = NNNN
#else
//staptest// sched_setaffinity (0, XXXX, 0x[f]+) = NNNN
#endif
#endif
return 0;
}
int main(int argc, char * argv[])
{
unsigned long new_mask;
unsigned long cur_mask;
unsigned int len = sizeof(new_mask);
pid_t pid;
if (argc != 3) {
printf(" usage: %s <pid> <cpu_mask>\n", argv[0]);
return -1;
}
pid = atol(argv[1]);
sscanf(argv[2], "%08lx", &new_mask);
if (__sched_getaffinity(pid, len, &cur_mask) < 0) {
printf("error: could not get pid %d's affinity.\n", pid);
return -1;
}
printf(" pid %d's old affinity: %08lx\n", pid, cur_mask);
if (__sched_setaffinity(pid, len, &new_mask)) {
printf("error: could not set pid %d's affinity.\n", pid);
return -1;
}
if (__sched_getaffinity(pid, len, &cur_mask) < 0) {
printf("error: could not get pid %d's affinity.\n", pid);
return -1;
}
printf(" pid %d's new affinity: %08lx\n", pid, cur_mask);
return 0;
}
