1#ifndef _LOCALE_IMPL_H
 2#define _LOCALE_IMPL_H
 3
 4#include <locale.h>
 5#include <stdlib.h>
 6#include "libc.h"
 7#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
 8#include "pthread_impl.h"
 9#endif
10
11#define LOCALE_NAME_MAX 23
12
13struct __locale_map {
14	const void *map;
15	size_t map_size;
16	char name[LOCALE_NAME_MAX+1];
17	const struct __locale_map *next;
18};
19
20#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
21extern hidden volatile int __locale_lock[1];
22#endif
23
24extern hidden const struct __locale_map __c_dot_utf8;
25extern hidden const struct __locale_struct __c_locale;
26extern hidden const struct __locale_struct __c_dot_utf8_locale;
27
28hidden const struct __locale_map *__get_locale(int, const char *);
29hidden const char *__mo_lookup(const void *, size_t, const char *);
30hidden const char *__lctrans(const char *, const struct __locale_map *);
31#ifdef __wasilibc_unmodified_upstream
32hidden const char *__lctrans_cur(const char *);
33#else
34// We make this visible in the wasi-libc build because
35// libwasi-emulated-signal.so needs to import it from libc.so.  If we ever
36// decide to merge libwasi-emulated-signal.so into libc.so, this will no longer
37// be necessary.
38const char *__lctrans_cur(const char *);
39#endif
40hidden const char *__lctrans_impl(const char *, const struct __locale_map *);
41hidden int __loc_is_allocated(locale_t);
42hidden char *__gettextdomain(void);
43
44#define LOC_MAP_FAILED ((const struct __locale_map *)-1)
45
46#define LCTRANS(msg, lc, loc) __lctrans(msg, (loc)->cat[(lc)])
47#define LCTRANS_CUR(msg) __lctrans_cur(msg)
48
49#define C_LOCALE ((locale_t)&__c_locale)
50#define UTF8_LOCALE ((locale_t)&__c_dot_utf8_locale)
51
52#if defined(__wasilibc_unmodified_upstream) || defined(_REENTRANT)
53#define CURRENT_LOCALE (__pthread_self()->locale)
54
55#define CURRENT_UTF8 (!!__pthread_self()->locale->cat[LC_CTYPE])
56#else
57// If we haven't set up the current_local field yet, do so. Then return an
58// lvalue for the current_locale field.
59#define CURRENT_LOCALE \
60    (*({ \
61        if (!libc.current_locale) { \
62            libc.current_locale = &libc.global_locale; \
63        } \
64        &libc.current_locale; \
65    }))
66
67#define CURRENT_UTF8 (!!CURRENT_LOCALE->cat[LC_CTYPE])
68#endif
69
70#undef MB_CUR_MAX
71#define MB_CUR_MAX (CURRENT_UTF8 ? 4 : 1)
72
73#endif