The map::at method does not always exist, so instead use map::find.

[cumulus.git] / localdb.h

diff --git a/localdb.h b/localdb.h
index 1bfaf3b..b2a90fd 100644 (file)
--- a/localdb.h
+++ b/localdb.h
@@ -1,7 +1,24 @@
-/* LBS: An LFS-inspired filesystem backup system
- * Copyright (C) 2007  Michael Vrable
+/* Cumulus: Smart Filesystem Backup to Dumb Servers
  *
- * When creating backup snapshots, maintain a local database of data blocks and
+ * 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.
+ */
+
+/* When creating backup snapshots, maintain a local database of data blocks and
  * checksums, in addition to the data contents (which may be stored remotely).
  * This database is consulted when attempting to build incremental snapshots,
  * as it says which objects can be reused.
@@ -37,6 +54,13 @@ public:
                             const std::string &checksum, int size);
     bool GetSegmentChecksum(const std::string &segment,
                             std::string *seg_path, std::string *seg_checksum);
+
+    bool LoadChunkSignatures(ObjectReference ref,
+                             void **buf, size_t *len,
+                             std::string *algorithm);
+    void StoreChunkSignatures(ObjectReference ref,
+                              const void *buf, size_t len,
+                              const std::string &algorithm);
 private:
     sqlite3 *db;
     int64_t snapshotid;