Berkeley DB

DBENV→set_lk_conflicts

						#include <db.h>
						int
						DBENV→set_lk_conflicts(DB_ENV *dbenv,
						u_int8_t *conflicts, int nmodes);
					

Description

Set the locking conflicts matrix. The conflicts argument is an nmodes by nmodes array. A non-0 value for the array element indicates that requested_mode and held_mode conflict:

conflicts[requested_mode][held_mode] 

The not-granted mode must be represented by 0.

If DBENV→set_lk_conflicts is never called, a standard conflicts array is used; see “Standard Lock Modes” for more information.

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

The DBENV→set_lk_conflicts function returns a non-zero error value on failure and 0 on success.

Errors

• EINVAL ...