1 | /* pthread_key_delete. Hurd version. |
2 | Copyright (C) 2002-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <pthread.h> |
20 | |
21 | #include <pt-internal.h> |
22 | |
23 | int |
24 | __pthread_key_delete (pthread_key_t key) |
25 | { |
26 | error_t err = 0; |
27 | |
28 | __pthread_key_lock_ready (); |
29 | |
30 | __pthread_mutex_lock (&__pthread_key_lock); |
31 | |
32 | if (key < 0 || key >= __pthread_key_count |
33 | || __pthread_key_destructors[key] == PTHREAD_KEY_INVALID) |
34 | err = EINVAL; |
35 | else |
36 | { |
37 | int i; |
38 | |
39 | __pthread_key_destructors[key] = PTHREAD_KEY_INVALID; |
40 | __pthread_key_invalid_count++; |
41 | |
42 | __libc_rwlock_rdlock (GL (dl_pthread_threads_lock)); |
43 | for (i = 0; i < GL (dl_pthread_num_threads); ++i) |
44 | { |
45 | struct __pthread *t; |
46 | |
47 | t = GL (dl_pthread_threads)[i]; |
48 | |
49 | if (t == NULL) |
50 | continue; |
51 | |
52 | /* Just remove the key, no need to care whether it was |
53 | already there. */ |
54 | if (key < t->thread_specifics_size) |
55 | t->thread_specifics[key] = 0; |
56 | } |
57 | __libc_rwlock_unlock (GL (dl_pthread_threads_lock)); |
58 | } |
59 | |
60 | __pthread_mutex_unlock (&__pthread_key_lock); |
61 | |
62 | return err; |
63 | } |
64 | weak_alias (__pthread_key_delete, pthread_key_delete) |
65 | |