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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 <stdio.h>
22#include <unistd.h>
23
24
25static int
26do_test (void)
27{
28 sem_t s;
29
30 if (sem_init (&s, 0, 1) == -1)
31 {
32 puts ("init failed");
33 return 1;
34 }
35
36 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
37 {
38 puts ("1st wait failed");
39 return 1;
40 }
41
42 if (sem_post (&s) == -1)
43 {
44 puts ("1st post failed");
45 return 1;
46 }
47
48 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) == -1)
49 {
50 puts ("1st trywait failed");
51 return 1;
52 }
53
54 errno = 0;
55 if (TEMP_FAILURE_RETRY (sem_trywait (&s)) != -1)
56 {
57 puts ("2nd trywait succeeded");
58 return 1;
59 }
60 else if (errno != EAGAIN)
61 {
62 puts ("2nd trywait did not set errno to EAGAIN");
63 return 1;
64 }
65
66 if (sem_post (&s) == -1)
67 {
68 puts ("2nd post failed");
69 return 1;
70 }
71
72 if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1)
73 {
74 puts ("2nd wait failed");
75 return 1;
76 }
77
78 if (sem_destroy (&s) == -1)
79 {
80 puts ("destroy failed");
81 return 1;
82 }
83
84 return 0;
85}
86
87#define TEST_FUNCTION do_test ()
88#include "../test-skeleton.c"
89

Warning: That file was not part of the compilation database. It may have many parsing errors.