Written by Fred Fish <fnf@cygnus.com>
Rewritten by Jim Blandy <jimb@cygnus.com>
- Copyright 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2002, 2003, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
This file is part of GDB.
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 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU 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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef BCACHE_H
#define BCACHE_H 1
/* Find a copy of the LENGTH bytes at ADDR in BCACHE. If BCACHE has
never seen those bytes before, add a copy of them to BCACHE. In
- either case, return a pointer to BCACHE's copy of that string. */
-extern void *bcache (const void *addr, int length, struct bcache *bcache);
+ either case, return a pointer to BCACHE's copy of that string.
+ Since the cached value is ment to be read-only, return a const
+ buffer. */
+extern const void *bcache (const void *addr, int length,
+ struct bcache *bcache);
+
+/* Like bcache, but if ADDED is not NULL, set *ADDED to true if the
+ bytes were newly added to the cache, or to false if the bytes were
+ found in the cache. */
+extern const void *bcache_full (const void *addr, int length,
+ struct bcache *bcache, int *added);
/* Free all the storage used by BCACHE. */
extern void bcache_xfree (struct bcache *bcache);