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d614a753 | 1 | /* Copyright (C) 2003-2020 Free Software Foundation, Inc. |
44777771 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. | |
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 | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
44777771 | 18 | |
cb5b9388 UD |
19 | #include <errno.h> |
20 | #include <error.h> | |
21 | #include <signal.h> | |
22 | #include <stdlib.h> | |
44777771 | 23 | #include <stdio.h> |
cb5b9388 UD |
24 | |
25 | volatile int count; | |
26 | ||
27 | void | |
28 | sh (int sig) | |
29 | { | |
30 | ++count; | |
31 | } | |
32 | ||
33 | int | |
34 | main (void) | |
35 | { | |
36 | struct sigaction sa; | |
37 | sa.sa_handler = sh; | |
38 | sigemptyset (&sa.sa_mask); | |
39 | sa.sa_flags = 0; | |
40 | if (sigaction (SIGUSR1, &sa, NULL) < 0) | |
41 | { | |
42 | printf ("sigaction failed: %m\n"); | |
43 | exit (1); | |
44 | } | |
45 | if (raise (SIGUSR1) < 0) | |
46 | { | |
47 | printf ("first raise failed: %m\n"); | |
48 | exit (1); | |
49 | } | |
50 | if (raise (SIGUSR1) < 0) | |
51 | { | |
52 | printf ("second raise failed: %m\n"); | |
53 | exit (1); | |
54 | } | |
55 | if (count != 2) | |
56 | { | |
57 | printf ("signal handler not called 2 times\n"); | |
58 | exit (1); | |
59 | } | |
60 | exit (0); | |
61 | } |