1 /*
2  * Test program that locks and unlocks a process-shared mutex.
3  * See also https://bugs.kde.org/show_bug.cgi?id=187048.
4  */
5 
6 
7 #define _GNU_SOURCE
8 
9 #include <stdio.h>
10 #include <pthread.h>
11 
12 
13 int main()
14 {
15   pthread_mutex_t mutex;
16   pthread_mutexattr_t attr;
17 
18   pthread_mutexattr_init(&attr);
19   pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
20   pthread_mutex_init(&mutex, &attr);
21   pthread_mutexattr_destroy(&attr);
22 
23   pthread_mutex_lock(&mutex);
24   pthread_mutex_unlock(&mutex);
25   pthread_mutex_destroy(&mutex);
26 
27   fprintf(stderr, "Finished.\n");
28 
29   return 0;
30 }
31