s3: Add dbwrap_cache

This is a caching layer for the notify database and potentially for the brlock
database. It caches the parse_record operation as long as the underlying seqnum
does not change.

1 files changed, 32 insertions, 0 deletions

diff --git a/source3/lib/dbwrap/dbwrap_cache.h b/source3/lib/dbwrap/dbwrap_cache.h
new file mode 100644
index 0000000000..cd290e15f8
--- /dev/null
+++ b/source3/lib/dbwrap/dbwrap_cache.h
@@ -0,0 +1,32 @@
+/*
+   Unix SMB/CIFS implementation.
+   Database interface wrapper around ctdbd
+   Copyright (C) Volker Lendecke 2012
+
+   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 3 of the License, 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.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __DBWRAP_CACHE_H__
+#define __DBWRAP_CACHE_H__
+
+#include <talloc.h>
+
+#include "dbwrap/dbwrap_private.h"
+
+struct db_context;
+
+struct db_context *db_open_cache(TALLOC_CTX *mem_ctx,
+				 struct db_context *backing);
+
+#endif /* __DBWRAP_CACHE_H__ */