DB_ENV->txn_checkpoint API Ref

#include <db.h>

int DB_ENV->txn_checkpoint(const DB_ENV *env, u_int32_t kbyte, u_int32_t min, u_int32_t flags);


Description: DB_ENV->txn_checkpoint

If there has been any logging activity in the database environment since the last checkpoint, the DB_ENV->txn_checkpoint method flushes the underlying memory pool, writes a checkpoint record to the log, and then flushes the log.

The DB_ENV->txn_checkpoint method returns a non-zero error value on failure and 0 on success.

The DB_ENV->txn_checkpoint method is the underlying method used by the db_checkpoint utility. See the db_checkpoint utility source code for an example of using DB_ENV->txn_checkpoint in a IEEE/ANSI Std 1003.1 (POSIX) environment.

Parameters
flags kbyte min

Errors

The DB_ENV->txn_checkpoint method may fail and return one of the following non-zero errors:


EINVAL


Class DB_ENV, DB_TXN
See Also Transaction Subsystem and Related Methods

APIRef

Copyright (c) 1996,2008 Oracle. All rights reserved.