1/* Free data allocated by a call to setlocale_r
2 Copyright (C) 1996-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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#include <locale.h>
21#include <stdlib.h>
22#include <libc-lock.h>
23
24#include "localeinfo.h"
25
26
27/* Lock for protecting global data. */
28__libc_rwlock_define (extern , __libc_setlocale_lock attribute_hidden)
29
30
31void
32__freelocale (locale_t dataset)
33{
34 int cnt;
35
36 /* This static object is returned for newlocale (LC_ALL_MASK, "C"). */
37 if (dataset == _nl_C_locobj_ptr)
38 return;
39
40 /* We modify global data (the usage counts). */
41 __libc_rwlock_wrlock (__libc_setlocale_lock);
42
43 for (cnt = 0; cnt < __LC_LAST; ++cnt)
44 if (cnt != LC_ALL && dataset->__locales[cnt]->usage_count != UNDELETABLE)
45 /* We can remove the data. */
46 _nl_remove_locale (cnt, dataset->__locales[cnt]);
47
48 /* It's done. */
49 __libc_rwlock_unlock (__libc_setlocale_lock);
50
51 /* Free the locale_t handle itself. */
52 free (dataset);
53}
54weak_alias (__freelocale, freelocale)
55