diff options
Diffstat (limited to 'intl/textdomain.c')
| -rw-r--r-- | intl/textdomain.c | 104 |
1 files changed, 69 insertions, 35 deletions
diff --git a/intl/textdomain.c b/intl/textdomain.c index 9cec75cb5e..a06d129f31 100644 --- a/intl/textdomain.c +++ b/intl/textdomain.c @@ -1,51 +1,60 @@ /* Implementation of the textdomain(3) function. - Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. - Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995. + 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, + 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 @@ -58,9 +67,12 @@ extern const char *_nl_current_default_domain; # 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". */ @@ -68,38 +80,60 @@ char * 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 |