| /* |
| * Copyright (c) 2002, Intel Corporation. All rights reserved. |
| * Created by: bing.wei.liu REMOVE-THIS AT intel DOT com |
| * This file is licensed under the GPL license. For the full content |
| * of this license, see the COPYING file at the top level of this |
| * source tree. |
| |
| * Test that pthread_cond_broadcast() |
| * shall unblock all threads currently blocked on the specified condition |
| * variable cond. |
| */ |
| |
| #define _XOPEN_SOURCE 600 |
| |
| #include <pthread.h> |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include "posixtest.h" |
| |
| #define THREAD_NUM 3 |
| |
| struct testdata { |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| } td; |
| |
| static int start_num; |
| static int waken_num; |
| |
| static void *thr_func(void *arg) |
| { |
| int rc; |
| pthread_t self = pthread_self(); |
| |
| if (pthread_mutex_lock(&td.mutex) != 0) { |
| fprintf(stderr, "[Thread 0x%p] failed to acquire the mutex\n", |
| (void *)self); |
| exit(PTS_UNRESOLVED); |
| } |
| start_num++; |
| fprintf(stderr, "[Thread 0x%p] started and locked the mutex\n", |
| (void *)self); |
| |
| fprintf(stderr, "[Thread 0x%p] is waiting for the cond\n", |
| (void *)self); |
| rc = pthread_cond_wait(&td.cond, &td.mutex); |
| if (rc != 0) { |
| fprintf(stderr, "pthread_cond_wait return %d\n", rc); |
| exit(PTS_UNRESOLVED); |
| } |
| waken_num++; |
| fprintf(stderr, "[Thread 0x%p] was wakened and acquired the mutex " |
| "again\n", (void *)self); |
| |
| if (pthread_mutex_unlock(&td.mutex) != 0) { |
| fprintf(stderr, "[Thread 0x%p] failed to release the mutex\n", |
| (void *)self); |
| exit(PTS_UNRESOLVED); |
| } |
| fprintf(stderr, "[Thread 0x%p] released the mutex\n", (void *)self); |
| return NULL; |
| } |
| |
| int main(void) |
| { |
| int i, rc; |
| pthread_t thread[THREAD_NUM]; |
| |
| if (pthread_mutex_init(&td.mutex, NULL) != 0) { |
| fprintf(stderr, "Fail to initialize mutex\n"); |
| return PTS_UNRESOLVED; |
| } |
| if (pthread_cond_init(&td.cond, NULL) != 0) { |
| fprintf(stderr, "Fail to initialize cond\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| for (i = 0; i < THREAD_NUM; i++) { |
| if (pthread_create(&thread[i], NULL, thr_func, NULL) != 0) { |
| fprintf(stderr, "Fail to create thread[%d]\n", i); |
| return PTS_UNRESOLVED; |
| } |
| } |
| |
| while (start_num < THREAD_NUM) |
| usleep(100); |
| |
| /* |
| * Acquire the mutex to make sure that all waiters are currently |
| * blocked on pthread_cond_wait |
| */ |
| if (pthread_mutex_lock(&td.mutex) != 0) { |
| fprintf(stderr, "Main: Fail to acquire mutex\n"); |
| return PTS_UNRESOLVED; |
| } |
| if (pthread_mutex_unlock(&td.mutex) != 0) { |
| fprintf(stderr, "Main: Fail to release mutex\n"); |
| return PTS_UNRESOLVED; |
| } |
| |
| /* broadcast and check if all waiters are wakened */ |
| fprintf(stderr, "[Main thread] broadcast the condition\n"); |
| rc = pthread_cond_broadcast(&td.cond); |
| if (rc != 0) { |
| fprintf(stderr, "[Main thread] failed to broadcast the " |
| "condition\n"); |
| return PTS_UNRESOLVED; |
| } |
| sleep(1); |
| if (waken_num < THREAD_NUM) { |
| fprintf(stderr, "[Main thread] Not all waiters were wakened\n"); |
| printf("Test FAILED\n"); |
| for (i = 0; i < THREAD_NUM; i++) |
| pthread_cancel(thread[i]); |
| |
| exit(PTS_FAIL); |
| } |
| fprintf(stderr, "[Main thread] all waiters were wakened\n"); |
| |
| /* join all secondary threads */ |
| for (i = 0; i < THREAD_NUM; i++) { |
| if (pthread_join(thread[i], NULL) != 0) { |
| fprintf(stderr, "Fail to join thread[%d]\n", i); |
| return PTS_UNRESOLVED; |
| } |
| } |
| printf("Test PASSED\n"); |
| return PTS_PASS; |
| } |