1/* Free data allocated by a call to setlocale_r
2 Copyright (C) 1996-2022 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 <locale.h>
20#include <stdlib.h>
21#include <libc-lock.h>
22
23#include "localeinfo.h"
24
25
26/* Lock for protecting global data. */
27__libc_rwlock_define (extern , __libc_setlocale_lock attribute_hidden)
28
29
30void
31__freelocale (locale_t dataset)
32{
33 int cnt;
34
35 /* This static object is returned for newlocale (LC_ALL_MASK, "C"). */
36 if (dataset == _nl_C_locobj_ptr)
37 return;
38
39 /* We modify global data (the usage counts). */
40 __libc_rwlock_wrlock (__libc_setlocale_lock);
41
42 for (cnt = 0; cnt < __LC_LAST; ++cnt)
43 if (cnt != LC_ALL && dataset->__locales[cnt]->usage_count != UNDELETABLE)
44 /* We can remove the data. */
45 _nl_remove_locale (cnt, dataset->__locales[cnt]);
46
47 /* It's done. */
48 __libc_rwlock_unlock (__libc_setlocale_lock);
49
50 /* Free the locale_t handle itself. */
51 free (dataset);
52}
53weak_alias (__freelocale, freelocale)
54