/* LBS: An LFS-inspired filesystem backup system
- * Copyright (C) 2007 Michael Vrable
+ * Copyright (C) 2007-2008 Michael Vrable
*
* When creating backup snapshots, maintain a local database of data blocks and
* checksums, in addition to the data contents (which may be stored remotely).
class LocalDb {
public:
- void Open(const char *path, const char *snapshot_name);
+ void Open(const char *path, const char *snapshot_name,
+ 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, int size);
+ bool GetSegmentChecksum(const std::string &segment,
+ std::string *seg_path, std::string *seg_checksum);
private:
sqlite3 *db;
int64_t snapshotid;
sqlite3_stmt *Prepare(const char *sql);
+ void ReportError(int rc);
int64_t SegmentToId(const std::string &segment);
std::string IdToSegment(int64_t segmentid);
};