Update.
[glibc.git] / nptl / tst-sem1.c
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1 /* Copyright (C) 2002 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <semaphore.h>
22 #include <stdio.h>
23 #include <unistd.h>
26 static int
27 do_test (void)
29 sem_t s;
31 if (sem_init (&s, 0, 1) == -1)
33 puts ("init failed");
34 return 1;
37 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
39 puts ("1st wait failed");
40 return 1;
43 if (sem_post (&s) == -1)
45 puts ("1st post failed");
46 return 1;
49 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) == -1)
51 puts ("1st trywait failed");
52 return 1;
55 errno = 0;
56 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) != -1)
58 puts ("2nd trywait succeeded");
59 return 1;
61 else if (errno != EAGAIN)
63 puts ("2nd trywait did not set errno to EAGAIN");
64 return 1;
67 if (sem_post (&s) == -1)
69 puts ("2nd post failed");
70 return 1;
73 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
75 puts ("2nd wait failed");
76 return 1;
79 if (sem_destroy (&s) == -1)
81 puts ("destroy failed");
82 return 1;
85 return 0;
88 #define TEST_FUNCTION do_test ()
89 #include "../test-skeleton.c"