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_timedlock() 9 * 10 * Upon success, it returns 0. 11 * 12 * Steps: 13 * 14 * 1. Create a thread, and call pthread_mutex_timedlock inside of it. It should not block 15 * and should return 0 since it will be the only one owning the mutex. 16 * 2. Save the return value of pthread_mutex_timedlock(). It should be 0. 17 * 18 */ 19 20 #define _XOPEN_SOURCE 600 21 22 #include <time.h> 23 #include <pthread.h> 24 #include <stdio.h> 25 #include <unistd.h> 26 #include <errno.h> 27 #include "posixtest.h" 28 29 #define TIMEOUT 3 /* 3 seconds of timeout time for 30 pthread_mutex_timedlock(). */ 31 void *f1(void *parm); 32 33 int ret; /* Save return value of 34 pthread_mutex_timedlock(). */ 35 pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; /* The mutex */ 36 time_t currsec1, currsec2; /* Variables for saving time before 37 and afer locking the mutex using 38 pthread_mutex_timedlock(). */ 39 /**************************** 40 * 41 * MAIN() 42 * 43 * *************************/ 44 int main(void) 45 { 46 pthread_t new_th; 47 48 /* Create a thread that will call pthread_mutex_timedlock */ 49 if (pthread_create(&new_th, NULL, f1, NULL) != 0) { 50 perror("Error in pthread_create().\n"); 51 return PTS_UNRESOLVED; 52 } 53 54 /* Wait for thread to end. */ 55 if (pthread_join(new_th, NULL) != 0) { 56 perror("Error in pthread_join().\n"); 57 return PTS_UNRESOLVED; 58 } 59 60 /* Check the return status of pthread_mutex_timedlock(). */ 61 if (ret != 0) { 62 printf("Test FAILED: Expected return code 0, got: %d.\n", ret); 63 return PTS_FAIL; 64 } 65 66 printf("Test PASSED\n"); 67 return PTS_PASS; 68 } 69 70 /**************************** 71 * 72 * Thread's start routine. 73 * f1() 74 * 75 * *************************/ 76 void *f1(void *parm) 77 { 78 struct timespec timeout; 79 80 timeout.tv_sec = time(NULL) + TIMEOUT; 81 timeout.tv_nsec = 0; 82 83 /* This should not block since the mutex is not owned by anyone right now. 84 * Save the return value. */ 85 ret = pthread_mutex_timedlock(&mutex, &timeout); 86 87 /* Cleaning up the mutexes. */ 88 if (pthread_mutex_unlock(&mutex) != 0) { 89 perror("Error in pthread_mutex_unlock().\n"); 90 pthread_exit((void *)PTS_UNRESOLVED); 91 return (void *)PTS_UNRESOLVED; 92 } 93 if (pthread_mutex_destroy(&mutex) != 0) { 94 perror("Error in pthread_mutex_destroy().\n"); 95 pthread_exit((void *)PTS_UNRESOLVED); 96 return (void *)PTS_UNRESOLVED; 97 } 98 99 pthread_exit(0); 100 return (void *)(0); 101 } 102