interfaces/pthread_cond_wait/2-2.c

156 	testdata_t * td = (testdata_t *)arg;
159 	ret = pthread_mutex_lock(&(td->mtx));
162 		td->status = ret;
167 	td->ctrl = 1;
172 		ret = pthread_cond_wait(&(td->cnd), &(td->mtx));
173 		td->ctrl = 2;
174 	} while ((ret == 0) && (td->bool == 0));
176 	td->ctrl = 3;
180 		td->status = ret;
185 	ret = pthread_mutex_trylock(&(td->mtx));
186 	if (td->type == PTHREAD_MUTEX_RECURSIVE)
193 			td->status = ret;
196 		ret = pthread_mutex_unlock(&(td->mtx));
199 			td->status = ret;
207 			td->status = -1;
212 			td-> status = ret;
220 	ret = pthread_mutex_unlock(&(td->mtx));
223 		td->status=ret;
228 	td->ctrl = 4;
239 	testdata_t * td;
284 		td = &alternativ;
328 		td = (testdata_t *) mmaped;
412 		ret = pthread_mutex_init(&(td->mtx), &ma);
417 		ret = pthread_cond_init(&(td->cnd), &ca);
423 		ret = pthread_condattr_getclock(&ca, &(td->cid));
427 		td->cid = CLOCK_REALTIME;
430 		ret = pthread_mutexattr_gettype(&ma, &(td->type));
434 		td->ctrl=0;
435 		td->bool=0;
436 		td->status=0;
456 				if (tf((void *)td) != NULL)
471 			ret = pthread_create(&child_th, NULL, tf, td);
479 		ret = pthread_mutex_lock(&(td->mtx));
482 		while ((td->ctrl == 0) && (td->status == 0))
484 			ret = pthread_mutex_unlock(&(td->mtx));
487 			ret = pthread_mutex_lock(&(td->mtx));
491 		if ((td->ctrl == 2) && (td->status == 0)) /* Spurious wakeups hapenned */
494 			td->ctrl = 1;
497 		if (td->ctrl == 1)/* The child is inside the cond wait */
499 			ret = pthread_cond_signal(&(td->cnd));
505 			if (td->ctrl != 1)
511 			td->bool=1;
515 		ret = pthread_mutex_unlock(&(td->mtx));
531 				UNRESOLVED( td->status , "Child process was killed");
540 				UNRESOLVED( td->status, "Child process was neither killed nor exited");
557  		ret = pthread_cond_destroy(&(td->cnd));
560 		ret = pthread_mutex_destroy(&(td->mtx));