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 pthread_mutexattr_settype() 9 * 10 PTHREAD_MUTEX_ERRORCHECK 11 12 Provides errorchecking. A thread attempting to relock this mutex without unlocking it 13 first will return with an error. A thread attempting to unlock a mutex which another 14 thread has locked will return with an error. A thread attempting to unlock an unlocked 15 mutex will return with an error. 16 * 17 * Steps: 18 * 1. Initialize a pthread_mutexattr_t object with pthread_mutexattr_init() 19 * 2 Set the 'type' of the mutexattr object to PTHREAD_MUTEX_ERRORCHECK. 20 * 3. Create a mutex with that mutexattr object. 21 * 4. Attempt to unlock an unlocked mutex. It should return an error. 22 * 23 */ 24 25 #define _XOPEN_SOURCE 600 26 27 #include <pthread.h> 28 #include <stdio.h> 29 #include <errno.h> 30 #include "posixtest.h" 31 32 int main(void) 33 { 34 pthread_mutex_t mutex; 35 pthread_mutexattr_t mta; 36 37 /* Initialize a mutex attributes object */ 38 if (pthread_mutexattr_init(&mta) != 0) { 39 perror("Error at pthread_mutexattr_init()\n"); 40 return PTS_UNRESOLVED; 41 } 42 43 /* Set the 'type' attribute to be PTHREAD_MUTEX_ERRORCHECK */ 44 if (pthread_mutexattr_settype(&mta, PTHREAD_MUTEX_ERRORCHECK) != 0) { 45 printf("Test FAILED: Error setting the attribute 'type'\n"); 46 return PTS_FAIL; 47 } 48 49 /* Initialize the mutex with that attribute obj. */ 50 if (pthread_mutex_init(&mutex, &mta) != 0) { 51 perror("Error intializing the mutex.\n"); 52 return PTS_UNRESOLVED; 53 } 54 55 if (pthread_mutex_lock(&mutex) != 0) { 56 perror("Error at pthread_mutex_lock().\n"); 57 return PTS_UNRESOLVED; 58 } 59 60 if (pthread_mutex_unlock(&mutex) != 0) { 61 perror("Error at pthread_mutex_unlock().\n"); 62 return PTS_UNRESOLVED; 63 } 64 65 /* Unlock an already unlocked mutex. Here, an error should be returned. */ 66 if (pthread_mutex_unlock(&mutex) == 0) { 67 perror 68 ("Test FAILED: Did not return error when unlocking an already unlocked mutex.\n"); 69 return PTS_FAIL; 70 } 71 72 if (pthread_mutex_destroy(&mutex)) { 73 perror("Error at pthread_mutex_destory().\n"); 74 return PTS_UNRESOLVED; 75 } 76 77 if (pthread_mutexattr_destroy(&mta)) { 78 perror("Error at pthread_mutexattr_destory().\n"); 79 return PTS_UNRESOLVED; 80 } 81 82 printf("Test PASSED\n"); 83 return PTS_PASS; 84 } 85
