Big re-organization of repository [W.I.P]
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3016 changed files with 1271 additions and 1 deletions
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/*
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* Copyright (C)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "DatabaseEnv.h"
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#include "Transaction.h"
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//- Append a raw ad-hoc query to the transaction
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void Transaction::Append(const char* sql)
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{
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SQLElementData data;
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data.type = SQL_ELEMENT_RAW;
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data.element.query = strdup(sql);
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m_queries.push_back(data);
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}
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void Transaction::PAppend(const char* sql, ...)
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{
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va_list ap;
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char szQuery [MAX_QUERY_LEN];
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va_start(ap, sql);
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vsnprintf(szQuery, MAX_QUERY_LEN, sql, ap);
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va_end(ap);
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Append(szQuery);
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}
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//- Append a prepared statement to the transaction
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void Transaction::Append(PreparedStatement* stmt)
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{
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SQLElementData data;
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data.type = SQL_ELEMENT_PREPARED;
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data.element.stmt = stmt;
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m_queries.push_back(data);
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}
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void Transaction::Cleanup()
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{
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// This might be called by explicit calls to Cleanup or by the auto-destructor
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if (_cleanedUp)
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return;
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while (!m_queries.empty())
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{
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SQLElementData const &data = m_queries.front();
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switch (data.type)
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{
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case SQL_ELEMENT_PREPARED:
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delete data.element.stmt;
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break;
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case SQL_ELEMENT_RAW:
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free((void*)(data.element.query));
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break;
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}
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m_queries.pop_front();
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}
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_cleanedUp = true;
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}
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bool TransactionTask::Execute()
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{
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if (m_conn->ExecuteTransaction(m_trans))
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return true;
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if (m_conn->GetLastError() == 1213)
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{
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uint8 loopBreaker = 5; // Handle MySQL Errno 1213 without extending deadlock to the core itself
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for (uint8 i = 0; i < loopBreaker; ++i)
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if (m_conn->ExecuteTransaction(m_trans))
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return true;
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}
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// Clean up now.
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m_trans->Cleanup();
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return false;
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}
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