125 lines
2.2 KiB
C
125 lines
2.2 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1996,2008 Oracle. All rights reserved.
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*
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* $Id: txn_method.c 63573 2008-05-23 21:43:21Z trent.nelson $
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*/
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#include "db_config.h"
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#include "db_int.h"
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#include "dbinc/txn.h"
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/*
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* __txn_env_create --
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* Transaction specific initialization of the DB_ENV structure.
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*
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* PUBLIC: int __txn_env_create __P((DB_ENV *));
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*/
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int
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__txn_env_create(dbenv)
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DB_ENV *dbenv;
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{
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/*
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* !!!
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* Our caller has not yet had the opportunity to reset the panic
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* state or turn off mutex locking, and so we can neither check
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* the panic state or acquire a mutex in the DB_ENV create path.
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*/
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dbenv->tx_max = DEF_MAX_TXNS;
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return (0);
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}
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/*
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* __txn_env_destroy --
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* Transaction specific destruction of the DB_ENV structure.
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*
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* PUBLIC: void __txn_env_destroy __P((DB_ENV *));
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*/
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void
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__txn_env_destroy(dbenv)
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DB_ENV *dbenv;
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{
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COMPQUIET(dbenv, NULL);
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}
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/*
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* PUBLIC: int __txn_get_tx_max __P((DB_ENV *, u_int32_t *));
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*/
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int
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__txn_get_tx_max(dbenv, tx_maxp)
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DB_ENV *dbenv;
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u_int32_t *tx_maxp;
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{
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ENV *env;
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env = dbenv->env;
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ENV_NOT_CONFIGURED(env,
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env->tx_handle, "DB_ENV->get_tx_max", DB_INIT_TXN);
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if (TXN_ON(env)) {
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/* Cannot be set after open, no lock required to read. */
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*tx_maxp = ((DB_TXNREGION *)
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env->tx_handle->reginfo.primary)->maxtxns;
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} else
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*tx_maxp = dbenv->tx_max;
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return (0);
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}
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/*
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* __txn_set_tx_max --
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* DB_ENV->set_tx_max.
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*
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* PUBLIC: int __txn_set_tx_max __P((DB_ENV *, u_int32_t));
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*/
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int
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__txn_set_tx_max(dbenv, tx_max)
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DB_ENV *dbenv;
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u_int32_t tx_max;
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{
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ENV *env;
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env = dbenv->env;
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ENV_ILLEGAL_AFTER_OPEN(env, "DB_ENV->set_tx_max");
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dbenv->tx_max = tx_max;
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return (0);
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}
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/*
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* PUBLIC: int __txn_get_tx_timestamp __P((DB_ENV *, time_t *));
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*/
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int
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__txn_get_tx_timestamp(dbenv, timestamp)
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DB_ENV *dbenv;
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time_t *timestamp;
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{
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*timestamp = dbenv->tx_timestamp;
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return (0);
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}
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/*
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* __txn_set_tx_timestamp --
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* Set the transaction recovery timestamp.
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*
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* PUBLIC: int __txn_set_tx_timestamp __P((DB_ENV *, time_t *));
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*/
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int
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__txn_set_tx_timestamp(dbenv, timestamp)
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DB_ENV *dbenv;
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time_t *timestamp;
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{
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ENV *env;
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env = dbenv->env;
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ENV_ILLEGAL_AFTER_OPEN(env, "DB_ENV->set_tx_timestamp");
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dbenv->tx_timestamp = *timestamp;
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return (0);
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}
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