struct tdb1_record *rec);
void tdb1_io_init(struct tdb_context *tdb);
int tdb1_expand(struct tdb_context *tdb, tdb1_off_t size);
+tdb1_off_t tdb1_expand_adjust(tdb1_off_t map_size, tdb1_off_t size, int page_size);
int tdb1_rec_free_read(struct tdb_context *tdb, tdb1_off_t off,
struct tdb1_record *rec);
bool tdb1_write_all(int fd, const void *buf, size_t count);