int (*tdb1_read)(struct tdb_context *, tdb1_off_t , void *, tdb1_len_t , int );
int (*tdb1_write)(struct tdb_context *, tdb1_off_t, const void *, tdb1_len_t);
void (*next_hash_chain)(struct tdb_context *, uint32_t *);
int (*tdb1_read)(struct tdb_context *, tdb1_off_t , void *, tdb1_len_t , int );
int (*tdb1_write)(struct tdb_context *, tdb1_off_t, const void *, tdb1_len_t);
void (*next_hash_chain)(struct tdb_context *, uint32_t *);