int whalemating(int nargs, char **args) { int i, j, err=0; (void)nargs; (void)args; whalematingMenuSemaphore = sem_create("Whalemating Driver Semaphore", 0); if (whalematingMenuSemaphore == NULL) { // 08 Feb 2012 : GWA : Probably out of memory, or you broke our // semaphores! Panicing might be an overreaction, but why not? panic("whalemating: sem_create failed.\n"); } // 13 Feb 2012 : GWA : Students are smarter than me. whalemating_init(); for (i = 0; i < 3; i++) { for (j = 0; j < NMATING; j++) { switch(i) { case 0: err = thread_fork("Male Whale Thread", male, whalematingMenuSemaphore, j, NULL); break; case 1: err = thread_fork("Female Whale Thread", female, whalematingMenuSemaphore, j, NULL); break; case 2: err = thread_fork("Matchmaker Whale Thread", matchmaker, whalematingMenuSemaphore, j, NULL); break; } if (err) { panic("whalemating: thread_fork failed: (%s)\n", strerror(err)); } } } for (i = 0; i < 3; i++) { for (j = 0; j < NMATING; j++) { P(whalematingMenuSemaphore); } } sem_destroy(whalematingMenuSemaphore); // 13 Feb 2012 : GWA : Students are WAY smarter than me, including Nikhil // Londhe. whalemating_cleanup(); return 0; }
int whalemating(int nargs, char **args) { (void) nargs; (void) args; int i, j, err = 0; char name[32]; whalematingMenuSemaphore = sem_create("Whalemating Driver Semaphore", 0); if (whalematingMenuSemaphore == NULL ) { panic("whalemating: sem_create failed.\n"); } whalemating_init(); for (i = 0; i < 3; i++) { for (j = 0; j < NMATING; j++) { random_yielder(PROBLEMS_MAX_YIELDER); switch (i) { case 0: snprintf(name, sizeof(name), "Male Whale Thread %d", (i * 3) + j); err = thread_fork(name, male, whalematingMenuSemaphore, j, NULL); break; case 1: snprintf(name, sizeof(name), "Female Whale Thread %d", (i * 3) + j); err = thread_fork(name, female, whalematingMenuSemaphore, j, NULL); break; case 2: snprintf(name, sizeof(name), "Matchmaker Whale Thread %d", (i * 3) + j); err = thread_fork(name, matchmaker, whalematingMenuSemaphore, j, NULL); break; } if (err) { panic("whalemating: thread_fork failed: (%s)\n", strerror(err)); } } } for (i = 0; i < 3; i++) { for (j = 0; j < NMATING; j++) { P(whalematingMenuSemaphore); } } sem_destroy(whalematingMenuSemaphore); whalemating_cleanup(); return 0; }