bool BuildSourceList(OpProgress *Progress = NULL);
bool BuildPolicy(OpProgress *Progress = NULL);
bool BuildDepCache(OpProgress *Progress = NULL);
bool Open(OpProgress *Progress = NULL, bool WithLock = true);
inline bool ReadOnlyOpen(OpProgress *Progress = NULL) { return Open(Progress, false); };
bool BuildSourceList(OpProgress *Progress = NULL);
bool BuildPolicy(OpProgress *Progress = NULL);
bool BuildDepCache(OpProgress *Progress = NULL);
bool Open(OpProgress *Progress = NULL, bool WithLock = true);
inline bool ReadOnlyOpen(OpProgress *Progress = NULL) { return Open(Progress, false); };