1 /* 2 * Copyright (c) 2002, Intel Corporation. All rights reserved. 3 * Created by: rolla.n.selbak 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_exit() 9 * 10 * terminates the calling thread and makes the value 'value_ptr' available 11 * to any successful join with the terminating thread. 12 * 13 * Steps: 14 * 1. Create a new thread. Have it return a return code on pthread_exit(); 15 * 2. Call pthread_join() in main(), and pass to it 'value_ptr'. 16 * 3. Check to see of the value_ptr and the value returned by pthread_exit() are the same; 17 * 18 */ 19 20 #include <pthread.h> 21 #include <stdio.h> 22 #include <unistd.h> 23 #include "posixtest.h" 24 25 #define RETURN_CODE 100 /* Set a random return code number. This shall be the return code of the 26 thread when using pthread_exit(). */ 27 28 #define INTHREAD 0 /* Control going to or is already for Thread */ 29 #define INMAIN 1 /* Control going to or is already for Main */ 30 31 int sem; /* Manual semaphore used to indicate when the thread has been created. */ 32 33 /* Thread's function. */ 34 void *a_thread_func() 35 { 36 sem = INMAIN; 37 pthread_exit((void *)RETURN_CODE); 38 return NULL; 39 } 40 41 int main(void) 42 { 43 pthread_t new_th; 44 int *value_ptr; 45 46 /* Initializing variables. */ 47 value_ptr = 0; 48 sem = INTHREAD; 49 50 /* Create a new thread. */ 51 if (pthread_create(&new_th, NULL, a_thread_func, NULL) != 0) { 52 perror("Error creating thread\n"); 53 return PTS_UNRESOLVED; 54 } 55 56 /* Make sure the thread was created before we join it. */ 57 while (sem == INTHREAD) 58 sleep(1); 59 60 /* Wait for thread to return */ 61 if (pthread_join(new_th, (void *)&value_ptr) != 0) { 62 perror("Error in pthread_join()\n"); 63 return PTS_UNRESOLVED; 64 } 65 66 /* Check to make sure that 'value_ptr' that was passed to pthread_join() and the 67 * pthread_exit() return code that was used in the thread function are the same. */ 68 if ((long)value_ptr != RETURN_CODE) { 69 printf 70 ("Test FAILED: pthread_exit() could not pass the return value of the thread in 'value_ptr' to pthread_join().\n"); 71 return PTS_FAIL; 72 } 73 74 printf("Test PASSED\n"); 75 return PTS_PASS; 76 } 77
