nptl/tst-sem13.c

   1 #include <errno.h>
   2 #include <semaphore.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5 #include <pthread.h>
   6 #include <internaltypes.h>
   7 #include <support/check.h>
   8
   9
  10 static int
  11 do_test (void)
  12 {
  13   union
  14   {
  15     sem_t s;
  16     struct new_sem ns;
  17   } u;
  18
  19   TEST_COMPARE (sem_init (&u.s, 0, 0), 0);
  20
  21   struct timespec ts = { 0, 1000000001 };       /* Invalid.  */
  22   errno = 0;
  23   TEST_VERIFY_EXIT (sem_timedwait (&u.s, &ts) < 0);
  24   TEST_COMPARE (errno, EINVAL);
  25
  26 #if __HAVE_64B_ATOMICS
  27   unsigned int nwaiters = (u.ns.data >> SEM_NWAITERS_SHIFT);
  28 #else
  29   unsigned int nwaiters = u.ns.nwaiters;
  30 #endif
  31   TEST_COMPARE (nwaiters, 0);
  32
  33   ts.tv_sec = /* Invalid.  */ -2;
  34   ts.tv_nsec = 0;
  35   errno = 0;
  36   TEST_VERIFY_EXIT (sem_timedwait (&u.s, &ts) < 0);
  37   TEST_COMPARE (errno, ETIMEDOUT);
  38 #if __HAVE_64B_ATOMICS
  39   nwaiters = (u.ns.data >> SEM_NWAITERS_SHIFT);
  40 #else
  41   nwaiters = u.ns.nwaiters;
  42 #endif
  43   TEST_COMPARE (nwaiters, 0);
  44
  45   return 0;
  46 }
  47
  48 #include <support/test-driver.c>