Berkeley DB

DB→set_re_len

						#include <db.h>
						int
						DB→set_re_len(DB *db, u_int32_t re_len);
					

Description

For the Queue access method, specify that the records are of length re_len.

For the Recno access method, specify that the records are fixed-length, not byte- delimited, and are of length re_len.

Any records added to the database that are less than re_len bytes long are automatically padded (see DB→set_re_pad for more information).

Any attempt to insert records into the database that are greater than re_len bytes long will cause the call to fail immediately and return an error.

The DB→set_re_len interface may only be used to configure Berkeley DB before the DB→open interface is called.

The DB→set_re_len function returns a non-zero error value on failure ...