-/* Implementation of the textdomain(3) function
- Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
- Written by Ulrich Drepper <drepper@gnu.org>, 1995.
+/* Implementation of the textdomain(3) function.
+ Copyright (C) 1995-1998, 2000, 2001, 2002 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Library General Public License as published
+ by the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-#if defined STDC_HEADERS || defined _LIBC
-# include <stdlib.h>
-#endif
+#include <stdlib.h>
+#include <string.h>
-#if defined STDC_HEADERS || defined HAVE_STRING_H || defined _LIBC
-# include <string.h>
+#ifdef _LIBC
+# include <libintl.h>
#else
-# include <strings.h>
-# ifndef memcpy
-# define memcpy(Dst, Src, Num) bcopy (Src, Dst, Num)
-# endif
+# include "libgnuintl.h"
#endif
+#include "gettextP.h"
#ifdef _LIBC
-# include <libintl.h>
+/* We have to handle multi-threaded applications. */
+# include <bits/libc-lock.h>
#else
-# include "libgettext.h"
+/* Provide dummy implementation if this is outside glibc. */
+# define __libc_rwlock_define(CLASS, NAME)
+# define __libc_rwlock_wrlock(NAME)
+# define __libc_rwlock_unlock(NAME)
+#endif
+
+/* The internal variables in the standalone libintl.a must have different
+ names than the internal variables in GNU libc, otherwise programs
+ using libintl.a cannot be linked statically. */
+#if !defined _LIBC
+# define _nl_default_default_domain libintl_nl_default_default_domain
+# define _nl_current_default_domain libintl_nl_current_default_domain
#endif
/* @@ end of prolog @@ */
/* Name of the default text domain. */
-extern const char _nl_default_default_domain[];
+extern const char _nl_default_default_domain[] attribute_hidden;
/* Default text domain in which entries for gettext(3) are to be found. */
-extern const char *_nl_current_default_domain;
+extern const char *_nl_current_default_domain attribute_hidden;
/* Names for the libintl functions are a problem. They must not clash
prefix. So we have to make a difference here. */
#ifdef _LIBC
# define TEXTDOMAIN __textdomain
-# define strdup(str) __strdup (str)
+# ifndef strdup
+# define strdup(str) __strdup (str)
+# endif
#else
-# define TEXTDOMAIN textdomain__
+# define TEXTDOMAIN libintl_textdomain
#endif
+/* Lock variable to protect the global data in the gettext implementation. */
+__libc_rwlock_define (extern, _nl_state_lock attribute_hidden)
+
/* Set the current default message catalog to DOMAINNAME.
If DOMAINNAME is null, return the current default.
If DOMAINNAME is "", reset to the default of "messages". */
TEXTDOMAIN (domainname)
const char *domainname;
{
- char *old;
+ char *new_domain;
+ char *old_domain;
/* A NULL pointer requests the current setting. */
if (domainname == NULL)
return (char *) _nl_current_default_domain;
- old = (char *) _nl_current_default_domain;
+ __libc_rwlock_wrlock (_nl_state_lock);
+
+ old_domain = (char *) _nl_current_default_domain;
/* If domain name is the null string set to default domain "messages". */
if (domainname[0] == '\0'
|| strcmp (domainname, _nl_default_default_domain) == 0)
- _nl_current_default_domain = _nl_default_default_domain;
+ {
+ _nl_current_default_domain = _nl_default_default_domain;
+ new_domain = (char *) _nl_current_default_domain;
+ }
+ else if (strcmp (domainname, old_domain) == 0)
+ /* This can happen and people will use it to signal that some
+ environment variable changed. */
+ new_domain = old_domain;
else
{
/* If the following malloc fails `_nl_current_default_domain'
will be NULL. This value will be returned and so signals we
are out of core. */
#if defined _LIBC || defined HAVE_STRDUP
- _nl_current_default_domain = strdup (domainname);
+ new_domain = strdup (domainname);
#else
size_t len = strlen (domainname) + 1;
- char *cp = (char *) malloc (len);
- if (cp != NULL)
- memcpy (cp, domainname, len);
- _nl_current_default_domain = cp;
+ new_domain = (char *) malloc (len);
+ if (new_domain != NULL)
+ memcpy (new_domain, domainname, len);
#endif
+
+ if (new_domain != NULL)
+ _nl_current_default_domain = new_domain;
+ }
+
+ /* We use this possibility to signal a change of the loaded catalogs
+ since this is most likely the case and there is no other easy we
+ to do it. Do it only when the call was successful. */
+ if (new_domain != NULL)
+ {
+ ++_nl_msg_cat_cntr;
+
+ if (old_domain != new_domain && old_domain != _nl_default_default_domain)
+ free (old_domain);
}
- if (old != _nl_default_default_domain)
- free (old);
+ __libc_rwlock_unlock (_nl_state_lock);
- return (char *) _nl_current_default_domain;
+ return new_domain;
}
#ifdef _LIBC
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