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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1996-2006
* Oracle Corporation. All rights reserved.
*
* $Id: txn_method.c,v 12.6 2006/08/24 14:46:53 bostic Exp $
*/
#include "db_config.h"
#include "db_int.h"
#include "dbinc/txn.h"
/*
* __txn_dbenv_create --
* Transaction specific initialization of the DB_ENV structure.
*
* PUBLIC: int __txn_dbenv_create __P((DB_ENV *));
*/
int
__txn_dbenv_create(dbenv)
DB_ENV *dbenv;
{
/*
* !!!
* Our caller has not yet had the opportunity to reset the panic
* state or turn off mutex locking, and so we can neither check
* the panic state or acquire a mutex in the DB_ENV create path.
*/
dbenv->tx_max = DEF_MAX_TXNS;
return (0);
}
/*
* __txn_dbenv_destroy --
* Transaction specific destruction of the DB_ENV structure.
*
* PUBLIC: void __txn_dbenv_destroy __P((DB_ENV *));
*/
void
__txn_dbenv_destroy(dbenv)
DB_ENV *dbenv;
{
COMPQUIET(dbenv, NULL);
}
/*
* PUBLIC: int __txn_get_tx_max __P((DB_ENV *, u_int32_t *));
*/
int
__txn_get_tx_max(dbenv, tx_maxp)
DB_ENV *dbenv;
u_int32_t *tx_maxp;
{
ENV_NOT_CONFIGURED(dbenv,
dbenv->tx_handle, "DB_ENV->get_tx_max", DB_INIT_TXN);
if (TXN_ON(dbenv)) {
/* Cannot be set after open, no lock required to read. */
*tx_maxp = ((DB_TXNREGION *)
dbenv->tx_handle->reginfo.primary)->maxtxns;
} else
*tx_maxp = dbenv->tx_max;
return (0);
}
/*
* __txn_set_tx_max --
* DB_ENV->set_tx_max.
*
* PUBLIC: int __txn_set_tx_max __P((DB_ENV *, u_int32_t));
*/
int
__txn_set_tx_max(dbenv, tx_max)
DB_ENV *dbenv;
u_int32_t tx_max;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "DB_ENV->set_tx_max");
dbenv->tx_max = tx_max;
return (0);
}
/*
* PUBLIC: int __txn_get_tx_timestamp __P((DB_ENV *, time_t *));
*/
int
__txn_get_tx_timestamp(dbenv, timestamp)
DB_ENV *dbenv;
time_t *timestamp;
{
*timestamp = dbenv->tx_timestamp;
return (0);
}
/*
* __txn_set_tx_timestamp --
* Set the transaction recovery timestamp.
*
* PUBLIC: int __txn_set_tx_timestamp __P((DB_ENV *, time_t *));
*/
int
__txn_set_tx_timestamp(dbenv, timestamp)
DB_ENV *dbenv;
time_t *timestamp;
{
ENV_ILLEGAL_AFTER_OPEN(dbenv, "DB_ENV->set_tx_timestamp");
dbenv->tx_timestamp = *timestamp;
return (0);
}
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