rt/tst-timer5.c

   1 /* Timer test using the monotonic clock.  */
   2
   3 #include <time.h>
   4 #include <unistd.h>
   5
   6 #if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK
   7
   8 # define TEST_CLOCK     CLOCK_MONOTONIC
   9 # define TEST_CLOCK_MISSING(clock) \
  10   (setup_test () ? "CLOCK_MONOTONIC" : NULL)
  11
  12 # include <stdio.h>
  13
  14 static int
  15 setup_test (void)
  16 {
  17   if (sysconf (_SC_MONOTONIC_CLOCK) <= 0)
  18     return 1;
  19
  20   /* The user-level timers implementation doesn't support CLOCK_MONOTONIC,
  21      even though sysconf claims it will.  */
  22   timer_t t;
  23   if (timer_create (TEST_CLOCK, NULL, &t) != 0)
  24     {
  25       printf ("timer_create: %m\n");
  26       return 1;
  27     }
  28   timer_delete (t);
  29
  30   return 0;
  31 }
  32
  33 # include "tst-timer4.c"
  34
  35 #else
  36 # define TEST_FUNCTION  0
  37 # include "../test-skeleton.c"
  38 #endif