]>
Commit | Line | Data |
---|---|---|
dff8da6b | 1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
76a50749 | 2 | This file is part of the GNU C Library. |
76a50749 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
17 | |
18 | #include <errno.h> | |
19 | #include "pthreadP.h" | |
20 | #include <atomic.h> | |
9ce44f46 | 21 | #include <shlib-compat.h> |
76a50749 UD |
22 | |
23 | int | |
9ce44f46 | 24 | ___pthread_key_delete (pthread_key_t key) |
76a50749 UD |
25 | { |
26 | int result = EINVAL; | |
27 | ||
a1ffb40e | 28 | if (__glibc_likely (key < PTHREAD_KEYS_MAX)) |
76a50749 UD |
29 | { |
30 | unsigned int seq = __pthread_keys[key].seq; | |
31 | ||
32 | if (__builtin_expect (! KEY_UNUSED (seq), 1) | |
5a3ab2fc UD |
33 | && ! atomic_compare_and_exchange_bool_acq (&__pthread_keys[key].seq, |
34 | seq + 1, seq)) | |
76a50749 UD |
35 | /* We deleted a valid key. */ |
36 | result = 0; | |
37 | } | |
38 | ||
39 | return result; | |
40 | } | |
9ce44f46 FW |
41 | versioned_symbol (libc, ___pthread_key_delete, pthread_key_delete, |
42 | GLIBC_2_34); | |
43 | libc_hidden_ver (___pthread_key_delete, __pthread_key_delete) | |
deb317d5 FW |
44 | #ifndef SHARED |
45 | strong_alias (___pthread_key_delete, __pthread_key_delete) | |
46 | #endif | |
9ce44f46 FW |
47 | |
48 | #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34) | |
49 | compat_symbol (libpthread, ___pthread_key_delete, pthread_key_delete, | |
50 | GLIBC_2_0); | |
51 | #endif |