1 /* -*- mode: C -*-  */
2 /*
3    IGraph library.
4    Copyright (C) 2011-2012  Gabor Csardi <csardi.gabor@gmail.com>
5    334 Harvard street, Cambridge MA, 02139 USA
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software
19    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20    02110-1301 USA
21 
22 */
23 
24 #include <igraph.h>
25 #include <pthread.h>
26 
thread_function(void * arg)27 void *thread_function(void *arg) {
28     IGRAPH_FINALLY(igraph_free, NULL);
29     return 0;
30 }
31 
main()32 int main() {
33     pthread_t thread_id;
34     void *exit_status;
35 
36     /* Skip if igraph is not thread-safe */
37     if (!IGRAPH_THREAD_SAFE) {
38         return 77;
39     }
40 
41     /* Run a thread that leaves some junk in the error stack */
42     pthread_create(&thread_id, NULL, thread_function, 0);
43     pthread_join(thread_id, &exit_status);
44 
45     /* Check that the error stack is not common */
46     if (!IGRAPH_FINALLY_STACK_EMPTY) {
47         printf("Foobar\n");
48         return 1;
49     }
50 
51     return 0;
52 }
53