granicus.if.org Git - strace/blob - tests/sched_xetparam.c

   1 #include "tests.h"
   2 #include <asm/unistd.h>
   3
   4 #if defined __NR_sched_getparam && defined __NR_sched_setparam
   5
   6 # include <sched.h>
   7 # include <stdio.h>
   8 # include <unistd.h>
   9
  10 int
  11 main(void)
  12 {
  13         struct sched_param *const param =
  14                 tail_alloc(sizeof(struct sched_param));
  15
  16         long rc = syscall(__NR_sched_getparam, 0, param);
  17         printf("sched_getparam(0, [%d]) = %ld\n",
  18                param->sched_priority, rc);
  19
  20         param->sched_priority = -1;
  21         rc = syscall(__NR_sched_setparam, 0, param);
  22         printf("sched_setparam(0, [%d]) = %ld %s (%m)\n",
  23                param->sched_priority, rc, errno2name());
  24
  25         puts("+++ exited with 0 +++");
  26         return 0;
  27 }
  28
  29 #else
  30
  31 SKIP_MAIN_UNDEFINED("__NR_sched_getparam && __NR_sched_setparam")
  32
  33 #endif