int (*oob)(struct tdb_context *, tdb_off_t, bool);
int (*expand_file)(struct tdb_context *, tdb_len_t);
void *(*direct)(struct tdb_context *, tdb_off_t, size_t, bool);
int (*oob)(struct tdb_context *, tdb_off_t, bool);
int (*expand_file)(struct tdb_context *, tdb_len_t);
void *(*direct)(struct tdb_context *, tdb_off_t, size_t, bool);