Tue Jul 9 09:37:55 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

	* sysdeps/mach/libc-lock.h: New file.
	* sysdeps/unix/readdir.c: Do locking.
	* sysdeps/unix/seekdir.c: Likewise.
	* sysdeps/unix/rewinddir.c:  Likewise.
	* sysdeps/unix/closedir.c: Likewise.
	* sysdeps/unix/bsd/telldir.c: Likewise.
	* sysdeps/mach/hurd/seekdir.c: Likewise.
	* sysdeps/mach/hurd/readdir.c: Likewise.
	* sysdeps/mach/hurd/closedir.c: Likewise.
	* sysdeps/mach/hurd/opendir.c: Initialize the lock.
	* sysdeps/unix/opendir.c: Likewise.
	* sysdeps/mach/hurd/dirstream.h: Include <libc-lock.h>.
	(struct __dirstream): Add lock member using __libc_lock_define.
	* sysdeps/unix/dirstream.h: Likewise.

	* sysdeps/stub/libc-lock.h (__libc_lock_fini): New macro.

	* stdlib/mbstowcs.c: Pass address of pointer to mbsrtowcs.

	* stdlib/wcstombs.c: Use wcsrtombs instead of mbsrtowcs.

Thu Jul  4 01:34:04 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/programs/stringtrans.c: Fix typo in copyright.

	* stdio-common/printf-prs.c: Add casts to prevent
        signed<->unsigned warnings.

	* stdio-common/printf-parse.h: Initialize state variable before
	calling mbrlen.
	* stdio-common/printf-prs.c: Don't initialize state variable here.
	* stdio-common/vfprintf.c: Don't initialize state variable.
	(vfprintf): While determining length of multibyte string don't
	try to be clever in determining characters to use for first
	call.

	Add real implementation of multibyte<->wide char conversion
	functions.  The functions always convert between the fixed wide
	char format (ISO 10646 in UCS4) and the UTF8 representation of
	this character set.  Conversion between the currently used
	8bit character set and ISO 10646 will not take place.  This is
	what iconv() is for.
	* wcsmbs/wchar.h (mbstate_t): Define as structure to replace
	dummy definition.
	Add optimized version of `mbrlen' function.
	* wcsmbs/btowc.c (btowc): Restrict range of legal characters
	to 0...0x7f.
	* wcsmbs/wctob.c (wctob): Restrict range of legal characters
	to 0..0x7f.
	* wcsmbs/mbrlen.c: Make mbrlen a weak alias of __mbrlen.
	This is needed in the wchar.h header.
	* wcsmbs/mbrtowc.c: Replace dummy implementation.  Convert UTF8
	encoded character to UCS4.
	* wcsmbs/mbsinit.c: Replace dummy implementation.  Test COUNT
	element of `mbstate_t' for initial state.
	* wcsmbs/mbsrtowcs.c: Replace dummy implementation.  Convert UTF8
	encoded string to UCS4 string.
	* wcsmbs/wcrtomb.c: Replace dummy implementation.  Convert UCS4
	character to UTF8 encoded form.
	* wcsmbs/wcsrtombs.c: Replace dummy implementation.  Convert UCS4
	encoded string to UTF8 encoded form.

1 files changed, 60 insertions, 0 deletions

diff --git a/sysdeps/mach/libc-lock.h b/sysdeps/mach/libc-lock.h
new file mode 100644
index 0000000000..0639fc6b22
--- /dev/null
+++ b/sysdeps/mach/libc-lock.h
@@ -0,0 +1,60 @@
+/* libc-internal interface for mutex locks.  Mach cthreads version.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef _LIBC_LOCK_H
+#define _LIBC_LOCK_H 1
+
+#ifdef _LIBC
+#include <cthreads.h>
+#define __libc_lock_t struct mutex
+#else
+typedef struct __libc_lock_opaque__ __libc_lock_t;
+#endif
+
+/* Define a lock variable NAME with storage class CLASS.  The lock must be
+   initialized with __libc_lock_init before it can be used (or define it
+   with __libc_lock_define_initialized, below).  Use `extern' for CLASS to
+   declare a lock defined in another module.  In public structure
+   definitions, the lock element must come last, because its storage size
+   will not be known outside of libc.  (Or you can use a pointer to the
+   lock structure; i.e. NAME begins with a `*'.)  */
+#define __libc_lock_define(CLASS,NAME)
+  CLASS __libc_lock_t NAME;
+
+/* Define an initialized lock variable NAME with storage class CLASS.  */
+#define __libc_lock_define_initialized(CLASS,NAME) \
+  CLASS __libc_lock_t NAME = MUTEX_INITIALIZER;
+
+/* Initialize the named lock variable, leaving it in a consistent, unlocked
+   state.  */
+#define __libc_lock_init(NAME) __mutex_init (&(NAME))
+
+/* Finalize the named lock variable, which must be locked.  It cannot be
+   used again until __libc_lock_init is called again on it.  This must be
+   called on a lock variable before the containing storage is reused.  */
+#define __libc_lock_fini(NAME) __mutex_unlock (&(NAME))
+
+/* Lock the named lock variable.  */
+#define __libc_lock_lock(NAME) __mutex_lock (&(NAME))
+
+/* Unlock the named lock variable.  */
+#define __libc_lock_unlock(NAME) __mutex_unlock (&(NAME))
+
+
+#endif	/* libc-lock.h */