struct tdb_record *rec);
void tdb_io_init(struct tdb_context *tdb);
int tdb_expand(struct tdb_context *tdb, tdb_off_t size);
+tdb_off_t tdb_expand_adjust(tdb_off_t map_size, tdb_off_t size, int page_size);
int tdb_rec_free_read(struct tdb_context *tdb, tdb_off_t off,
struct tdb_record *rec);
void tdb_header_hash(struct tdb_context *tdb,