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-rw-r--r--locale/duplocale.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/locale/duplocale.c b/locale/duplocale.c
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index 0000000000..494c2ec829
--- /dev/null
+++ b/locale/duplocale.c
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+/* Duplicate handle for selection of locales.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library 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 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include <locale.h>
+#include <libc-lock.h>
+#include <stdlib.h>
+
+#include <localeinfo.h>
+
+
+/* Lock for protecting global data. */
+__libc_lock_define (extern , __libc_setlocale_lock)
+
+
+__locale_t
+__duplocale (__locale_t dataset)
+{
+ __locale_t result;
+
+ /* We modify global data. */
+ __libc_lock_lock (__libc_setlocale_lock);
+
+ /* Get memory. */
+ result = (__locale_t) malloc (sizeof (struct __locale_t));
+ if (result != NULL)
+ {
+ int cnt;
+ for (cnt = 0; cnt < LC_ALL; ++cnt)
+ {
+ result->__locales[cnt] = dataset->__locales[cnt];
+ if (result->__locales[cnt]->usage_count != MAX_USAGE_COUNT)
+ ++result->__locales[cnt]->usage_count;
+ }
+ }
+
+ /* It's done. */
+ __libc_lock_unlock (__libc_setlocale_lock);
+}