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c72b934c AC |
1 | /* This test program is part of GDB, The GNU debugger. |
2 | ||
9b254dd1 | 3 | Copyright 2004, 2007, 2008 Free Software Foundation, Inc. |
c72b934c AC |
4 | |
5 | Originally written by Jeff Johnston <jjohnstn@redhat.com>, | |
6 | contributed by Red Hat | |
7 | ||
8 | This file is part of GDB. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c72b934c | 13 | (at your option) any later version. |
a9762ec7 | 14 | |
c72b934c AC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
a9762ec7 | 19 | |
c72b934c | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c72b934c AC |
22 | |
23 | #include <pthread.h> | |
24 | #include <semaphore.h> | |
25 | #include <stdio.h> | |
26 | #include <limits.h> | |
27 | #include <errno.h> | |
28 | ||
29 | sem_t semaphore; | |
30 | ||
31 | void * | |
32 | thread_function (void *arg) | |
33 | { | |
34 | printf ("Thread executing\n"); | |
35 | while (sem_wait (&semaphore) != 0) | |
36 | { | |
37 | if (errno != EINTR) | |
38 | { | |
39 | perror ("thread_function"); | |
40 | return; | |
41 | } | |
42 | } | |
43 | return NULL; | |
44 | } | |
45 | ||
46 | int | |
47 | main (int argc, char **argv) | |
48 | { | |
49 | pthread_attr_t attr; | |
50 | ||
51 | pthread_attr_init (&attr); | |
52 | pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); | |
53 | ||
54 | if (sem_init (&semaphore, 0, 0) == -1) | |
55 | { | |
56 | perror ("semaphore"); | |
57 | return -1; | |
58 | } | |
59 | ||
60 | ||
61 | /* Create a thread, wait for it to complete. */ | |
62 | { | |
63 | pthread_t thread; | |
64 | pthread_create (&thread, &attr, thread_function, NULL); | |
65 | sem_post (&semaphore); | |
66 | pthread_join (thread, NULL); | |
67 | } | |
68 | ||
69 | pthread_attr_destroy (&attr); | |
70 | return 0; | |
71 | } |