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2148.7.5
by Brian Aker
Move transactions out. |
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2011 Brian Aker
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DRIZZLED_SESSION_TRANSACTIONS_H
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#define DRIZZLED_SESSION_TRANSACTIONS_H
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#include <deque> |
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namespace drizzled |
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{
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class Session; |
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namespace session |
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{
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/**
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* Structure used to manage "statement transactions" and
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* "normal transactions". In autocommit mode, the normal transaction is
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* equivalent to the statement transaction.
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*
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* Storage engines will be registered here when they participate in
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* a transaction. No engine is registered more than once.
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*/
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class Transactions { |
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public: |
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Transactions() : |
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savepoints(), |
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all(), |
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stmt(), |
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xid_state() |
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{ } |
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std::deque<NamedSavepoint> savepoints; |
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/**
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* The normal transaction (since BEGIN WORK).
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*
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* Contains a list of all engines that have participated in any of the
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* statement transactions started within the context of the normal
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* transaction.
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*
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* @note In autocommit mode, this is empty.
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*/
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TransactionContext all; |
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/**
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* The statment transaction.
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*
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* Contains a list of all engines participating in the given statement.
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*
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* @note In autocommit mode, this will be used to commit/rollback the
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* normal transaction.
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*/
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TransactionContext stmt; |
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XID_STATE xid_state; |
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void cleanup() |
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{
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savepoints.clear(); |
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}
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};
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} /* namespace session */ |
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} /* namespace drizzled */ |
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#endif /* DRIZZLED_SESSION_TRANSACTIONS_H */ |