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1/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <errno.h>
20#include <semaphore.h>
21#include <time.h>
22#include <unistd.h>
23#include <sys/time.h>
24#include <support/check.h>
25
26
27static int
28do_test (void)
29{
30 sem_t s;
31 struct timespec ts;
32 struct timeval tv;
33
34 TEST_COMPARE (sem_init (&s, 0, 1), 0);
35 TEST_COMPARE (TEMP_FAILURE_RETRY (sem_wait (&s)), 0);
36 TEST_COMPARE (gettimeofday (&tv, NULL), 0);
37
38 TIMEVAL_TO_TIMESPEC (&tv, &ts);
39
40 /* We wait for half a second. */
41 ts.tv_nsec += 500000000;
42 if (ts.tv_nsec >= 1000000000)
43 {
44 ++ts.tv_sec;
45 ts.tv_nsec -= 1000000000;
46 }
47
48 errno = 0;
49 TEST_COMPARE (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)), -1);
50 TEST_COMPARE (errno, ETIMEDOUT);
51
52 struct timespec ts2;
53 TEST_COMPARE (clock_gettime (CLOCK_REALTIME, &ts2), 0);
54
55 TEST_VERIFY (ts2.tv_sec > ts.tv_sec
56 || (ts2.tv_sec == ts.tv_sec && ts2.tv_nsec > ts.tv_nsec));
57
58 return 0;
59}
60
61#include <support/test-driver.c>
62

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