A small change to the code for the mutex using semaphores: void f() { // Locking code sem_wait(&sem1); mutex_owner = getpid();
// CS // Unlocking code if(getpid() == mutex_owner) { sem_post(&sem1); } else { abort(); // Invalid program operation: mutex not owned is being unlocked. } } -- DK http://twitter.com/divyekapoor http://www.divye.in -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To view this discussion on the web visit https://groups.google.com/d/msg/algogeeks/-/dkADRGLYq4sJ. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.