1 /* Handle list of needed message catalogs
2 Copyright (C) 1995-1999, 2000-2001, 2003-2007 Free Software Foundation, Inc.
3 Written by Ulrich Drepper <drepper@gnu.org>, 1995.
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU Library General Public License as published
7 by the Free Software Foundation; either version 2, or (at your option)
10 This program 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
25 #include <sys/types.h>
29 #if defined HAVE_UNISTD_H || defined _LIBC
37 # include "libgnuintl.h"
40 /* Handle multi-threaded applications. */
42 # include <bits/libc-lock.h>
43 # define gl_rwlock_define_initialized __libc_rwlock_define_initialized
44 # define gl_rwlock_rdlock __libc_rwlock_rdlock
45 # define gl_rwlock_wrlock __libc_rwlock_wrlock
46 # define gl_rwlock_unlock __libc_rwlock_unlock
51 /* @@ end of prolog @@ */
52 /* List of already loaded domains. */
53 static struct loaded_l10nfile *_nl_loaded_domains;
56 /* Return a data structure describing the message catalog described by
57 the DOMAINNAME and CATEGORY parameters with respect to the currently
58 established bindings. */
59 struct loaded_l10nfile *
61 _nl_find_domain (const char *dirname, char *locale,
62 const char *domainname, struct binding *domainbinding)
64 struct loaded_l10nfile *retval;
67 const char *territory;
69 const char *normalized_codeset;
70 const char *alias_value;
73 /* LOCALE can consist of up to four recognized parts for the XPG syntax:
75 language[_territory][.codeset][@modifier]
77 Beside the first part all of them are allowed to be missing. If
78 the full specified locale is not found, the less specific one are
79 looked for. The various parts will be stripped off according to
82 (2) normalized codeset
87 /* We need to protect modifying the _NL_LOADED_DOMAINS data. */
88 gl_rwlock_define_initialized (static, lock);
89 gl_rwlock_rdlock (lock);
91 /* If we have already tested for this locale entry there has to
92 be one data set in the list of loaded domains. */
93 retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
94 strlen (dirname) + 1, 0, locale, NULL, NULL,
95 NULL, NULL, domainname, 0);
97 gl_rwlock_unlock (lock);
101 /* We know something about this locale. */
104 if (retval->decided <= 0)
105 _nl_load_domain (retval, domainbinding);
107 if (retval->data != NULL)
110 for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
112 if (retval->successor[cnt]->decided <= 0)
113 _nl_load_domain (retval->successor[cnt], domainbinding);
115 if (retval->successor[cnt]->data != NULL)
123 /* See whether the locale value is an alias. If yes its value
124 *overwrites* the alias name. No test for the original value is
126 alias_value = _nl_expand_alias (locale);
127 if (alias_value != NULL)
129 #if defined _LIBC || defined HAVE_STRDUP
130 locale = strdup (alias_value);
134 size_t len = strlen (alias_value) + 1;
135 locale = (char *) malloc (len);
139 memcpy (locale, alias_value, len);
143 /* Now we determine the single parts of the locale name. First
144 look for the language. Termination symbols are `_', '.', and `@'. */
145 mask = _nl_explode_name (locale, &language, &modifier, &territory,
146 &codeset, &normalized_codeset);
148 /* This means we are out of core. */
151 /* We need to protect modifying the _NL_LOADED_DOMAINS data. */
152 gl_rwlock_wrlock (lock);
154 /* Create all possible locale entries which might be interested in
156 retval = _nl_make_l10nflist (&_nl_loaded_domains, dirname,
157 strlen (dirname) + 1, mask, language, territory,
158 codeset, normalized_codeset, modifier,
161 gl_rwlock_unlock (lock);
164 /* This means we are out of core. */
167 if (retval->decided <= 0)
168 _nl_load_domain (retval, domainbinding);
169 if (retval->data == NULL)
172 for (cnt = 0; retval->successor[cnt] != NULL; ++cnt)
174 if (retval->successor[cnt]->decided <= 0)
175 _nl_load_domain (retval->successor[cnt], domainbinding);
176 if (retval->successor[cnt]->data != NULL)
181 /* The room for an alias was dynamically allocated. Free it now. */
182 if (alias_value != NULL)
186 /* The space for normalized_codeset is dynamically allocated. Free it. */
187 if (mask & XPG_NORM_CODESET)
188 free ((void *) normalized_codeset);
195 /* This is called from iconv/gconv_db.c's free_mem, as locales must
196 be freed before freeing gconv steps arrays. */
197 void __libc_freeres_fn_section
198 _nl_finddomain_subfreeres ()
200 struct loaded_l10nfile *runp = _nl_loaded_domains;
204 struct loaded_l10nfile *here = runp;
205 if (runp->data != NULL)
206 _nl_unload_domain ((struct loaded_domain *) runp->data);
208 free ((char *) here->filename);