void tdb_layout_add_freetable(struct tdb_layout *layout);
void tdb_layout_add_free(struct tdb_layout *layout, tdb_len_t len,
unsigned ftable);
void tdb_layout_add_used(struct tdb_layout *layout,
TDB_DATA key, TDB_DATA data,
tdb_len_t extra);
void tdb_layout_add_freetable(struct tdb_layout *layout);
void tdb_layout_add_free(struct tdb_layout *layout, tdb_len_t len,
unsigned ftable);
void tdb_layout_add_used(struct tdb_layout *layout,
TDB_DATA key, TDB_DATA data,
tdb_len_t extra);