Berkeley DB

DBcursor→c_dup

						#include <db.h>
						int
						DBCc_dup(DBC *cursor, DBC **cursorp, u_int32_t flags);
					

Description

The DBcursor→c_dup function creates a new cursor that uses the same transaction and locker ID as the original cursor. This is useful when an application is using locking and requires two or more cursors in the same thread of control.

The flags value must be set to 0 or by bitwise inclusively OR’ing together one or more of the following values.

• DB_POSITION The newly created cursor is initialized to reference the same position in the database as the original cursor and hold the same locks. If the DB_POSITION flag is not specified, then the created cursor is uninitialized and will behave like a cursor newly created using DB→cursor.

When using ...