1/* Copyright (C) 1998-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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#ifndef _WCSMBSLOAD_H
20#define _WCSMBSLOAD_H 1
21
22#include <locale.h>
23#include <wchar.h>
24#include <locale/localeinfo.h>
25
26
27/* Contains pointers to the used functions in the `gconv' modules. */
28struct gconv_fcts
29 {
30 struct __gconv_step *towc;
31 size_t towc_nsteps;
32 struct __gconv_step *tomb;
33 size_t tomb_nsteps;
34 };
35
36/* Set of currently active conversion functions. */
37extern const struct gconv_fcts __wcsmbs_gconv_fcts_c attribute_hidden;
38
39/* Load conversion functions for the currently selected locale. */
40extern void __wcsmbs_load_conv (struct __locale_data *new_category)
41 attribute_hidden;
42
43/* Clone the current `__wcsmbs_load_conv' value. */
44extern void __wcsmbs_clone_conv (struct gconv_fcts *copy)
45 attribute_hidden;
46
47/* Find the conversion functions for converting to and from NAME. */
48extern int __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
49 attribute_hidden;
50
51/* Function used for the `private.cleanup' hook. */
52extern void _nl_cleanup_ctype (struct __locale_data *) attribute_hidden;
53
54
55#include <iconv/gconv_int.h>
56
57
58/* Load the function implementation if necessary. */
59extern struct __gconv_step *__wcsmbs_getfct (const char *to, const char *from,
60 size_t *nstepsp)
61 attribute_hidden;
62
63extern const struct __locale_data _nl_C_LC_CTYPE attribute_hidden;
64
65/* Check whether the LC_CTYPE locale changed since the last call.
66 Update the pointers appropriately. */
67static inline const struct gconv_fcts *
68get_gconv_fcts (struct __locale_data *data)
69{
70 if (__glibc_unlikely (data->private.ctype == NULL))
71 {
72 if (__glibc_unlikely (data == &_nl_C_LC_CTYPE))
73 return &__wcsmbs_gconv_fcts_c;
74 __wcsmbs_load_conv (data);
75 }
76 return data->private.ctype;
77}
78
79#endif /* wcsmbsload.h */
80