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/*
* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "DatabaseEnv.h"
#include "Transaction.h"
//- Append a raw ad-hoc query to the transaction
void Transaction::Append(const char* sql)
{
TransactionElementData data;
data.type = TRANSACTION_ELEMENT_RAW;
data.element.query = strdup(sql);
m_queries.push(data);
}
void Transaction::PAppend(const char* sql, ...)
{
va_list ap;
char szQuery [MAX_QUERY_LEN];
va_start(ap, sql);
vsnprintf(szQuery, MAX_QUERY_LEN, sql, ap);
va_end(ap);
Append(szQuery);
}
//- Append a prepared statement to the transaction
void Transaction::Append(PreparedStatement* stmt)
{
TransactionElementData data;
data.type = TRANSACTION_ELEMENT_PREPARED;
data.element.stmt = stmt;
m_queries.push(data);
}
void Transaction::Cleanup()
{
while (!m_queries.empty())
{
TransactionElementData data = m_queries.front();
switch (data.type)
{
case TRANSACTION_ELEMENT_PREPARED:
delete data.element.stmt;
break;
case TRANSACTION_ELEMENT_RAW:
free((void*)(data.element.query));
break;
}
m_queries.pop();
}
}
bool TransactionTask::Execute()
{
std::queue<TransactionElementData> &queries = m_trans->m_queries;
if (queries.empty())
return false;
m_conn->BeginTransaction();
while (!queries.empty())
{
TransactionElementData data = queries.front();
switch (data.type)
{
case TRANSACTION_ELEMENT_PREPARED:
{
PreparedStatement* stmt = data.element.stmt;
ASSERT(stmt);
if (!m_conn->Execute(stmt))
{
sLog.outSQLDriver("[Warning] Transaction aborted. %u queries not executed.", (uint32)queries.size());
m_conn->RollbackTransaction();
return false;
}
delete data.element.stmt;
}
break;
case TRANSACTION_ELEMENT_RAW:
{
const char* sql = data.element.query;
ASSERT(sql)
if (!m_conn->Execute(sql))
{
sLog.outSQLDriver("[Warning] Transaction aborted. %u queries not executed.", (uint32)queries.size());
m_conn->RollbackTransaction();
return false;
}
free((void*)const_cast<char*>(sql));
}
break;
}
queries.pop();
}
m_conn->CommitTransaction();
return true;
}
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