1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: bing.wei.liu REMOVE-THIS AT intel DOT com 4 * This file is licensed under the GPL license. For the full content 5 * of this license, see the COPYING file at the top level of this 6 * source tree. 7 8 * Test that pthread_mutex_unlock() 9 * shall release the mutex object 'mutex'. 10 11 * Steps: 12 * -- Initilize a mutex object 13 * -- Get the mutex using pthread_mutex_lock() 14 * -- Release the mutex using pthread_mutex_unlock() 15 * -- Try to get the mutex using pthread_mutex_trylock() 16 * -- Release the mutex using pthread_mutex_unlock() 17 * 18 */ 19 20 #include <pthread.h> 21 #include <stdio.h> 22 #include <errno.h> 23 #include "posixtest.h" 24 25 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; 26 27 int main(void) 28 { 29 int rc; 30 31 /* Get the mutex using pthread_mutex_lock() */ 32 if ((rc = pthread_mutex_lock(&mutex)) != 0) { 33 fprintf(stderr, "Error at pthread_mutex_lock(), rc=%d\n", rc); 34 return PTS_UNRESOLVED; 35 } 36 37 /* Release the mutex using pthread_mutex_unlock() */ 38 if ((rc = pthread_mutex_unlock(&mutex)) != 0) { 39 printf("Test FAILED\n"); 40 return PTS_FAIL; 41 } 42 43 /* Get the mutex using pthread_mutex_trylock() */ 44 if ((rc = pthread_mutex_trylock(&mutex)) != 0) { 45 printf("Test FAILED\n"); 46 return PTS_FAIL; 47 } 48 49 /* Release the mutex using pthread_mutex_unlock() */ 50 if ((rc = pthread_mutex_unlock(&mutex)) != 0) { 51 printf("Test FAILED\n"); 52 return PTS_FAIL; 53 } 54 55 printf("Test PASSED\n"); 56 return PTS_PASS; 57 } 58
