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1 /*
2 * Copyright (c) 2005, 2008 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24 #ifndef _XLOCALE_PRIVATE_H_
25 #define _XLOCALE_PRIVATE_H_
26
27 #include <sys/cdefs.h>
28 #define __DARWIN_XLOCALE_PRIVATE
29 #include <xlocale.h>
30 #undef __DARWIN_XLOCALE_PRIVATE
31 #include <stdlib.h>
32 #include <locale.h>
33 #include <libkern/OSAtomic.h>
34 #include <pthread.h>
35 #include <pthread_spinlock.h>
36 #include <limits.h>
37 #include "setlocale.h"
38 #include "collate.h"
39 #include "runetype.h"
40 #include "lmessages.h"
41 #include "lmonetary.h"
42 #include "lnumeric.h"
43 #include "timelocal.h"
44 #include <TargetConditionals.h>
45
46 #undef MB_CUR_MAX
47 #define MB_CUR_MAX (__current_locale()->__lc_ctype->__mb_cur_max)
48 #undef MB_CUR_MAX_L
49 #define MB_CUR_MAX_L(x) ((x)->__lc_ctype->__mb_cur_max)
50
51 typedef void (*__free_extra_t)(void *);
52
53 #define XPERMANENT ((__free_extra_t)-1)
54 #define XMAGIC 0x786c6f63616c6530LL /* 'xlocale0' */
55
56 #define __STRUCT_COMMON \
57 int32_t __refcount; \
58 __free_extra_t __free_extra;
59
60 struct __xlocale_st_collate {
61 __STRUCT_COMMON
62 char __encoding[ENCODING_LEN + 1];
63 struct __collate_st_info __info;
64 struct __collate_st_subst *__substitute_table[COLL_WEIGHTS_MAX];
65 struct __collate_st_chain_pri *__chain_pri_table;
66 struct __collate_st_large_char_pri *__large_char_pri_table;
67 struct __collate_st_char_pri __char_pri_table[UCHAR_MAX + 1];
68 };
69 struct __xlocale_st_runelocale {
70 __STRUCT_COMMON
71 char __ctype_encoding[ENCODING_LEN + 1];
72 int __mb_cur_max;
73 int __mb_sb_limit;
74 size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
75 size_t, __darwin_mbstate_t * __restrict, struct _xlocale *);
76 int (*__mbsinit)(const __darwin_mbstate_t *, struct _xlocale *);
77 size_t (*__mbsnrtowcs)(wchar_t * __restrict, const char ** __restrict,
78 size_t, size_t, __darwin_mbstate_t * __restrict, struct _xlocale *);
79 size_t (*__wcrtomb)(char * __restrict, wchar_t,
80 __darwin_mbstate_t * __restrict, struct _xlocale *);
81 size_t (*__wcsnrtombs)(char * __restrict, const wchar_t ** __restrict,
82 size_t, size_t, __darwin_mbstate_t * __restrict, struct _xlocale *);
83 int __datasize;
84 _RuneLocale _CurrentRuneLocale;
85 };
86 struct __xlocale_st_ldpart {
87 __STRUCT_COMMON
88 char *_locale_buf;
89 };
90 /*
91 * the next four structures must have the first three fields of the same
92 * as the _xlocale_st_ldpart structure above.
93 */
94 struct __xlocale_st_messages {
95 __STRUCT_COMMON
96 char *_messages_locale_buf;
97 struct lc_messages_T _messages_locale;
98 };
99 struct __xlocale_st_monetary {
100 __STRUCT_COMMON
101 char *_monetary_locale_buf;
102 struct lc_monetary_T _monetary_locale;
103 };
104 struct __xlocale_st_numeric {
105 __STRUCT_COMMON
106 char *_numeric_locale_buf;
107 struct lc_numeric_T _numeric_locale;
108 };
109 struct __xlocale_st_time {
110 __STRUCT_COMMON
111 char *_time_locale_buf;
112 struct lc_time_T _time_locale;
113 };
114
115 /* the extended locale structure */
116 /* values for __numeric_fp_cvt */
117 #define LC_NUMERIC_FP_UNINITIALIZED 0
118 #define LC_NUMERIC_FP_SAME_LOCALE 1
119 #define LC_NUMERIC_FP_USE_LOCALE 2
120
121 struct _xlocale {
122 /* The item(s) before __magic are not copied when duplicating locale_t's */
123 __STRUCT_COMMON /* only used for locale_t's in __lc_numeric_loc */
124 /* 10 independent mbstate_t buffers! */
125 __darwin_mbstate_t __mbs_mblen;
126 __darwin_mbstate_t __mbs_mbrlen;
127 __darwin_mbstate_t __mbs_mbrtowc;
128 __darwin_mbstate_t __mbs_mbsnrtowcs;
129 __darwin_mbstate_t __mbs_mbsrtowcs;
130 __darwin_mbstate_t __mbs_mbtowc;
131 __darwin_mbstate_t __mbs_wcrtomb;
132 __darwin_mbstate_t __mbs_wcsnrtombs;
133 __darwin_mbstate_t __mbs_wcsrtombs;
134 __darwin_mbstate_t __mbs_wctomb;
135 pthread_lock_t __lock;
136 /* magic (Here up to the end is copied when duplicating locale_t's) */
137 int64_t __magic;
138 /* flags */
139 unsigned char __collate_load_error;
140 unsigned char __collate_substitute_nontrivial;
141 unsigned char _messages_using_locale;
142 unsigned char _monetary_using_locale;
143 unsigned char _numeric_using_locale;
144 unsigned char _time_using_locale;
145 unsigned char __mlocale_changed;
146 unsigned char __nlocale_changed;
147 unsigned char __numeric_fp_cvt;
148 /* collate */
149 struct __xlocale_st_collate *__lc_collate;
150 /* ctype */
151 struct __xlocale_st_runelocale *__lc_ctype;
152 /* messages */
153 struct __xlocale_st_messages *__lc_messages;
154 /* monetary */
155 struct __xlocale_st_monetary *__lc_monetary;
156 /* numeric */
157 struct __xlocale_st_numeric *__lc_numeric;
158 struct _xlocale *__lc_numeric_loc;
159 /* time */
160 struct __xlocale_st_time *__lc_time;
161 /* localeconv */
162 struct lconv __lc_localeconv;
163 };
164
165 #define DEFAULT_CURRENT_LOCALE(x) \
166 if ((x) == NULL) { \
167 (x) = __current_locale(); \
168 } else if ((x) == LC_GLOBAL_LOCALE) { \
169 (x) = &__global_locale; \
170 }
171
172 #define NORMALIZE_LOCALE(x) if ((x) == NULL) { \
173 (x) = _c_locale; \
174 } else if ((x) == LC_GLOBAL_LOCALE) { \
175 (x) = &__global_locale; \
176 }
177
178 #define XL_LOCK(x) LOCK((x)->__lock);
179 #define XL_RELEASE(x) if ((x) && (x)->__free_extra != XPERMANENT && OSAtomicDecrement32Barrier(&(x)->__refcount) == 0) { \
180 if ((x)->__free_extra) \
181 (*(x)->__free_extra)((x)); \
182 free((x)); \
183 }
184 #define XL_RETAIN(x) if ((x) && (x)->__free_extra != XPERMANENT) { OSAtomicIncrement32Barrier(&(x)->__refcount); }
185 #define XL_UNLOCK(x) UNLOCK((x)->__lock);
186
187 __attribute__((visibility("hidden")))
188 extern struct __xlocale_st_runelocale _DefaultRuneXLocale;
189
190 __attribute__((visibility("hidden")))
191 extern struct _xlocale __global_locale;
192
193 __attribute__((visibility("hidden")))
194 extern pthread_key_t __locale_key;
195
196 __BEGIN_DECLS
197
198 void __ldpart_free_extra(struct __xlocale_st_ldpart *);
199 locale_t __numeric_ctype(locale_t);
200 void __xlocale_init(void);
201
202 static inline __attribute__((always_inline)) locale_t
203 __current_locale(void)
204 {
205 #if TARGET_IPHONE_SIMULATOR
206 /* <rdar://problem/14136256> Crash in _objc_inform for duplicate class name during simulator launch
207 * TODO: Remove after the simulator's libSystem is initialized properly.
208 */
209 if (__locale_key == (pthread_key_t)-1) {
210 return &__global_locale;
211 }
212 #endif
213
214 locale_t __locale = (locale_t)pthread_getspecific(__locale_key);
215 return (__locale ? __locale : &__global_locale);
216 }
217
218 static inline __attribute__((always_inline)) locale_t
219 __locale_ptr(locale_t __loc)
220 {
221 NORMALIZE_LOCALE(__loc);
222 return __loc;
223 }
224
225 __END_DECLS
226
227 #endif /* _XLOCALE_PRIVATE_H_ */