1 /* Copyright (C) 2002-2013 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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.
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.
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/>. */
20 #include <semaphore.h>
30 if (sem_init (&s, 0, 1) == -1)
36 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
38 puts ("1st wait failed");
42 if (sem_post (&s) == -1)
44 puts ("1st post failed");
48 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) == -1)
50 puts ("1st trywait failed");
55 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) != -1)
57 puts ("2nd trywait succeeded");
60 else if (errno != EAGAIN)
62 puts ("2nd trywait did not set errno to EAGAIN");
66 if (sem_post (&s) == -1)
68 puts ("2nd post failed");
72 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
74 puts ("2nd wait failed");
78 if (sem_destroy (&s) == -1)
80 puts ("destroy failed");
87 #define TEST_FUNCTION do_test ()
88 #include "../test-skeleton.c"