1 | /* Test that the key reuse inside libpthread does not cause thread |
2 | specific values to persist. |
3 | Copyright (C) 2000-2024 Free Software Foundation, Inc. |
4 | This file is part of the GNU C Library. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <https://www.gnu.org/licenses/>. */ |
19 | |
20 | #define _GNU_SOURCE 1 |
21 | |
22 | #include <pthread.h> |
23 | #include <stdio.h> |
24 | #include <assert.h> |
25 | #include <errno.h> |
26 | |
27 | void |
28 | work (int iter) |
29 | { |
30 | error_t err; |
31 | pthread_key_t key1; |
32 | pthread_key_t key2; |
33 | void *value1; |
34 | void *value2; |
35 | |
36 | printf (format: "work/%d: start\n" , iter); |
37 | err = pthread_key_create (key: &key1, NULL); |
38 | assert (err == 0); |
39 | err = pthread_key_create (key: &key2, NULL); |
40 | assert (err == 0); |
41 | |
42 | value1 = pthread_getspecific (key: key1); |
43 | value2 = pthread_getspecific (key: key2); |
44 | printf (format: "work/%d: pre-setspecific: %p,%p\n" , iter, value1, value2); |
45 | assert (value1 == NULL); |
46 | assert (value2 == NULL); |
47 | err = pthread_setspecific (key: key1, pointer: (void *) (0x100 + iter)); |
48 | assert (err == 0); |
49 | err = pthread_setspecific (key: key2, pointer: (void *) (0x200 + iter)); |
50 | assert (err == 0); |
51 | |
52 | value1 = pthread_getspecific (key: key1); |
53 | value2 = pthread_getspecific (key: key2); |
54 | printf (format: "work/%d: post-setspecific: %p,%p\n" , iter, value1, value2); |
55 | assert (value1 == (void *) (0x100 + iter)); |
56 | assert (value2 == (void *) (0x200 + iter)); |
57 | |
58 | err = pthread_key_delete (key: key1); |
59 | assert (err == 0); |
60 | err = pthread_key_delete (key: key2); |
61 | assert (err == 0); |
62 | } |
63 | |
64 | int |
65 | main (int argc, char *argv[]) |
66 | { |
67 | int i; |
68 | |
69 | for (i = 0; i < 8; ++i) |
70 | work (iter: i + 1); |
71 | |
72 | return 0; |
73 | } |
74 | |