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/*****************************************************************************
Copyright (c) 1996, 2015, Oracle and/or its affiliates. All Rights Reserved.
Copyright (c) 2016, 2021, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*****************************************************************************/
/**************************************************//**
@file include/trx0trx.ic
The transaction
Created 3/26/1996 Heikki Tuuri
*******************************************************/
/**********************************************************************//**
Determines if a transaction is in the given state.
The caller must hold trx->mutex, or it must be the thread
that is serving a running transaction.
A running RW transaction must be in trx_sys.rw_trx_hash.
@return TRUE if trx->state == state */
UNIV_INLINE
bool
trx_state_eq(
/*=========*/
const trx_t* trx, /*!< in: transaction */
trx_state_t state, /*!< in: state;
if state != TRX_STATE_NOT_STARTED
asserts that
trx->state != TRX_STATE_NOT_STARTED */
bool relaxed)
/*!< in: whether to allow
trx->state == TRX_STATE_NOT_STARTED
after an error has been reported */
{
#ifdef UNIV_DEBUG
switch (trx->state) {
case TRX_STATE_PREPARED:
case TRX_STATE_PREPARED_RECOVERED:
case TRX_STATE_COMMITTED_IN_MEMORY:
ut_ad(!trx->is_autocommit_non_locking());
return(trx->state == state);
case TRX_STATE_ACTIVE:
if (trx->is_autocommit_non_locking()) {
ut_ad(!trx->is_recovered);
ut_ad(trx->read_only);
ut_ad(trx->mysql_thd);
}
return(state == trx->state);
case TRX_STATE_NOT_STARTED:
/* These states are not allowed for running transactions. */
ut_a(state == TRX_STATE_NOT_STARTED
|| (relaxed
&& thd_get_error_number(trx->mysql_thd)));
return(true);
}
ut_error;
#endif /* UNIV_DEBUG */
return(trx->state == state);
}
/****************************************************************//**
Retrieves the error_info field from a trx.
@return the error info */
UNIV_INLINE
const dict_index_t*
trx_get_error_info(
/*===============*/
const trx_t* trx) /*!< in: trx object */
{
return(trx->error_info);
}
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