|
|
DB_ENV->set_lk_conflicts |
#include <db.h>int DB_ENV->set_lk_conflicts(DB_ENV *dbenv, u_int8_t *conflicts, int nmodes);
int DB_ENV->get_lk_conflicts(DB_ENV *dbenv, const u_int8_t **lk_conflictsp, int *lk_modesp);
Set the locking conflicts matrix.
If DB_ENV->set_lk_conflicts is never called, a standard conflicts array is used; see Standard Lock Modes for more information.
The DB_ENV->set_lk_conflicts method configures a database environment, not only operations performed using the specified DB_ENV handle.
The DB_ENV->set_lk_conflicts method may not be called after the DB_ENV->open method is called. If the database environment already exists when DB_ENV->open is called, the information specified to DB_ENV->set_lk_conflicts will be ignored.
The DB_ENV->set_lk_conflicts method returns a non-zero error value on failure and 0 on success.
conflicts[requested_mode][held_mode]
The not-granted mode must be represented by 0.
The DB_ENV->set_lk_conflicts method may fail and return one of the following non-zero errors:
The DB_ENV->get_lk_conflicts method returns the current conflicts array.
The DB_ENV->get_lk_conflicts method may be called at any time during the life of the application.
The DB_ENV->get_lk_conflicts method returns a non-zero error value on failure and 0 on success.
Copyright (c) 1996-2005 Sleepycat Software, Inc. - All rights reserved.