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 static int sem; /* Manual semaphore used to indicate when the thread has been created. */
32
33 /* Thread's function. */
a_thread_func()34 static void *a_thread_func()
35 {
36 sem = INMAIN;
37 pthread_exit((void *)RETURN_CODE);
38 return NULL;
39 }
40
posix_testcase(void)41 static int posix_testcase(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 #include <rtt_utest_internal.h>
78 UTEST_TC_EXPORT(testcase, "posix.pthread_exit.1-1.c", RT_NULL, RT_NULL, 10);
79
80