about summary refs log tree commit diff
path: root/nptl/tst-sem5.c
blob: 396222b85f647feea1035c23bb9e48d4a9c1d972 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <semaphore.h>
#include <time.h>
#include <unistd.h>
#include <sys/time.h>
#include <support/check.h>
#include <support/timespec.h>
#include <support/xtime.h>


static int
do_test (void)
{
  sem_t s;
  struct timespec ts;

  TEST_COMPARE (sem_init (&s, 0, 1), 0);
  TEST_COMPARE (TEMP_FAILURE_RETRY (sem_wait (&s)), 0);

  /* We wait for half a second.  */
  xclock_gettime (CLOCK_REALTIME, &ts);
  ts = timespec_add (ts, make_timespec (0, TIMESPEC_HZ/2));

  errno = 0;
  TEST_COMPARE (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)), -1);
  TEST_COMPARE (errno, ETIMEDOUT);
  TEST_TIMESPEC_NOW_OR_AFTER (CLOCK_REALTIME, ts);

  return 0;
}

#include <support/test-driver.c>