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
79
80
81
82
83
84
85
86
87
88
89
|
/* Test Thread-Specific Data.
Copyright (C) 2000-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#define _GNU_SOURCE
#include <pthread.h>
#include <assert.h>
#include <stdio.h>
#include <error.h>
#include <errno.h>
#define THREADS 10
#define KEYS 400
pthread_key_t key[KEYS];
void *
thr (void *arg)
{
error_t err;
int i;
for (i = 0; i < KEYS; i++)
{
printf ("pthread_getspecific(%d).\n", key[i]);
assert (pthread_getspecific (key[i]) == NULL);
printf ("pthread_setspecific(%d, %d).\n", key[i], pthread_self ());
err = pthread_setspecific (key[i], (void *) pthread_self ());
printf ("pthread_setspecific(%d, %d) => %d.\n", key[i], pthread_self (),
err);
assert_perror (err);
}
return 0;
}
int
main (int argc, char **argv)
{
error_t err;
int i;
pthread_t tid[THREADS];
void des (void *val)
{
assert ((pthread_t) val == pthread_self ());
}
assert (pthread_getspecific ((pthread_key_t) 0) == NULL);
assert (pthread_setspecific ((pthread_key_t) 0, (void *) 0x1) == EINVAL);
for (i = 0; i < KEYS; i++)
err = pthread_key_create (&key[i], des);
for (i = 0; i < THREADS; i++)
{
err = pthread_create (&tid[i], 0, thr, 0);
if (err)
error (1, err, "pthread_create (%d)", i);
}
for (i = 0; i < THREADS; i++)
{
void *ret;
err = pthread_join (tid[i], &ret);
if (err)
error (1, err, "pthread_join");
assert (ret == 0);
}
return 0;
}
|
