1 | /* Copyright (C) 2003-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <semaphore.h> |
20 | #include <signal.h> |
21 | #include <stdio.h> |
22 | #include <unistd.h> |
23 | |
24 | |
25 | static void |
26 | handler (int sig) |
27 | { |
28 | struct sigaction sa; |
29 | |
30 | sa.sa_handler = SIG_DFL; |
31 | sa.sa_flags = 0; |
32 | sigemptyset (&sa.sa_mask); |
33 | |
34 | sigaction (SIGALRM, act: &sa, NULL); |
35 | |
36 | /* Rearm the timer. */ |
37 | alarm (1); |
38 | } |
39 | |
40 | |
41 | static int |
42 | do_test (void) |
43 | { |
44 | sem_t s; |
45 | struct sigaction sa; |
46 | |
47 | sa.sa_handler = handler; |
48 | sa.sa_flags = 0; |
49 | sigemptyset (&sa.sa_mask); |
50 | |
51 | sigaction (SIGALRM, act: &sa, NULL); |
52 | |
53 | if (sem_init (sem: &s, pshared: 0, value: 0) == -1) |
54 | { |
55 | puts (s: "init failed" ); |
56 | return 1; |
57 | } |
58 | |
59 | /* Set an alarm for 1 second. The wrapper will expect this. */ |
60 | alarm (1); |
61 | |
62 | int res = sem_wait (sem: &s); |
63 | if (res == 0) |
64 | { |
65 | puts (s: "wait succeeded" ); |
66 | return 1; |
67 | } |
68 | if (res != -1 || errno != EINTR) |
69 | { |
70 | puts (s: "wait didn't fail with EINTR" ); |
71 | return 1; |
72 | } |
73 | |
74 | return 0; |
75 | } |
76 | |
77 | #define TEST_FUNCTION do_test () |
78 | #include "../test-skeleton.c" |
79 | |