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

   1 #include "tests.h"
   2 #include <asm/unistd.h>
   3
   4 #if defined __NR_getpriority && defined __NR_setpriority
   5
   6 # include <stdio.h>
   7 # include <sys/resource.h>
   8 # include <unistd.h>
   9
  10 int
  11 main(void)
  12 {
  13         const int pid = getpid();
  14         long rc = syscall(__NR_getpriority, PRIO_PROCESS,
  15                           (unsigned long) 0xffffffff00000000ULL | pid);
  16         printf("getpriority(PRIO_PROCESS, %d) = %ld\n", pid, rc);
  17
  18         rc = syscall(__NR_setpriority, PRIO_PROCESS,
  19                      (unsigned long) 0xffffffff00000000ULL | pid,
  20                      (unsigned long) 0xffffffff00000000ULL);
  21         printf("setpriority(PRIO_PROCESS, %d, 0) = %s\n", pid, sprintrc(rc));
  22
  23         puts("+++ exited with 0 +++");
  24         return 0;
  25 }
  26
  27 #else
  28
  29 SKIP_MAIN_UNDEFINED("__NR_getpriority && _NR_setpriority")
  30
  31 #endif