-/* LBS: An LFS-inspired filesystem backup system
- * Copyright (C) 2007 Michael Vrable
+/* Cumulus: Smart Filesystem Backup to Dumb Servers
*
- * Handling of metadata written to backup snapshots. This manages the writing
+ * Copyright (C) 2007-2008 The Regents of the University of California
+ * Written by Michael Vrable <mvrable@cs.ucsd.edu>
+ *
+ * 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
+ * (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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/* Handling of metadata written to backup snapshots. This manages the writing
* of file metadata into new backup snapshots, including breaking the metadata
* log apart across separate objects. Eventually this should include unified
* handling of the statcache, and re-use of metadata between snapshots.
#define _LBS_METADATA_H
#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
#include <list>
#include <string>
#include <sstream>
#include "ref.h"
#include "util.h"
+extern bool flag_full_metadata;
+
/* Metadata for a single inode, ready to be written out. */
struct MetadataItem {
int offset;
ObjectReference close();
bool find(const std::string& path);
- ObjectReference *old_ref() const {
+ ObjectReference old_ref() const {
return ObjectReference::parse(old_metadata_loc);
}
+ bool is_unchanged(const struct stat *stat_buf);
+
dictionary get_old_metadata() const { return old_metadata; }
+ std::list<ObjectReference> get_blocks();
+ std::string get_checksum() { return old_metadata["checksum"]; }
private:
void metadata_flush();