1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * This file is licensed under the GPL license. For the full content 4 * of this license, see the COPYING file at the top level of this 5 * source tree. 6 7 * Test pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock) 8 * 9 * It may fail if: 10 * [EINVAL] rwlock does not refer to an intialized read-write lock object 11 * 12 * Steps: 13 * 1. Call pthread_rwlock_trywrlock with an uninitialized rwlock object 14 * 2. Test for the return code. It may be EINVAL or 0. 15 */ 16 #define _XOPEN_SOURCE 600 17 #include <pthread.h> 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include <unistd.h> 21 #include <errno.h> 22 #include "posixtest.h" 23 24 int main(void) 25 { 26 27 static pthread_rwlock_t rwlock; 28 int rc; 29 30 /* Call without initializing rwlock */ 31 rc = pthread_rwlock_trywrlock(&rwlock); 32 33 /* Clean up before checking return value */ 34 if (pthread_rwlock_unlock(&rwlock) != 0) { 35 printf("main: Error at pthread_rwlock_unlock()\n"); 36 exit(PTS_UNRESOLVED); 37 } 38 39 if (pthread_rwlock_destroy(&rwlock) != 0) { 40 printf("Error at pthread_rwlock_destroy()\n"); 41 return PTS_UNRESOLVED; 42 } 43 44 if (rc != 0) { 45 if (rc == EINVAL) { 46 printf("Test PASSED\n"); 47 return PTS_PASS; 48 } else { 49 printf("Test FAILED: Incorrect return code %d\n", rc); 50 return PTS_FAIL; 51 } 52 } 53 54 printf 55 ("Test PASSED: Note*: Returned 0 instead of EINVAL, but standard specified _may_ fail. \n"); 56 return PTS_PASS; 57 } 58
