1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/* ==== test_pthread_join.c =================================================
* Copyright (c) 1993 by Chris Provenzano, proven@athena.mit.edu
*
* Description : Test pthread_join(). Run this after test_create()
*
* 1.23 94/05/04 proven
* -Started coding this file.
*/
#define PTHREAD_KERNEL
#include <pthread.h>
#include <stdio.h>
/* This thread yields so the creator has a live thread to wait on */
void* new_thread_1(void * new_buf)
{
int i;
sprintf((char *)new_buf, "New thread %%d stack at %x\n", &i);
pthread_yield();
return(new_buf);
PANIC();
}
/* This thread doesn't yield so the creator has a dead thread to wait on */
void* new_thread_2(void * new_buf)
{
int i;
sprintf((char *)new_buf, "New thread %%d stack at %x\n", &i);
return(new_buf);
PANIC();
}
main()
{
char buf[256], *status;
pthread_t thread;
int debug = 1;
int i = 0;
pthread_init();
printf("Original thread stack at %x\n", &i);
if (pthread_create(&thread, NULL, new_thread_1, (void *)buf) == OK) {
if (pthread_join(thread, (void **)(&status)) == OK) {
if (debug) { printf(status, ++i); }
} else {
printf("ERROR: Joining with new thread #1.\n");
printf("FAILED: test_pthread_join\n");
exit(1);
}
} else {
printf("ERROR: Creating new thread #1\n");
printf("FAILED: test_pthread_join\n");
exit(2);
}
/* Now have the created thread finishing before the join. */
if (pthread_create(&thread, NULL, new_thread_2, (void *)buf) == OK){
pthread_yield();
if (pthread_join(thread, (void **)(&status)) == OK) {
if (debug) { printf(status, ++i); }
} else {
printf("ERROR: Joining with new thread #2.\n");
printf("FAILED: test_pthread_join\n");
exit(1);
}
} else {
printf("ERROR: Creating new thread #2\n");
printf("FAILED: test_pthread_join\n");
exit(2);
}
printf("test_pthread_join PASSED\n");
pthread_exit(NULL);
}
|
