drd/tests/pth_process_shared_mutex.c

   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 }