X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=localdb.h;h=b2a90fd9b9c9ad08f0bf217f1fd51157d3741506;hb=35dd99aa3d47805b661fe3126a951710fa7dee11;hp=e8a350e652fec5e77dfb967720ebe5cccc0225dd;hpb=893aa36d4dee18cc85843c441219c8e177282e79;p=cumulus.git

diff --git a/localdb.h b/localdb.h
index e8a350e..b2a90fd 100644
--- 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.
@@ -22,17 +39,28 @@
 class LocalDb {
 public:
     void Open(const char *path, const char *snapshot_name,
-              const char *snapshot_scheme);
+              const char *snapshot_scheme, double intent);
     void Close();
     void StoreObject(const ObjectReference& ref,
                      const std::string &checksum, int64_t size, double age);
     ObjectReference FindObject(const std::string &checksum, int64_t size);
-    bool IsOldObject(const std::string &checksum, int64_t size, double *age);
+    bool IsOldObject(const std::string &checksum, int64_t size, double *age,
+                     int *group);
     bool IsAvailable(const ObjectReference &ref);
     void UseObject(const ObjectReference& ref);
+    void UseSegment(const std::string &segment, double utilization);
 
     void SetSegmentChecksum(const std::string &segment, const std::string &path,
-                            const std::string &checksum);
+                            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;