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Core/DBLayer:
- Add basic prepared statement interface (without implementation and thus without testing, without resultset support). - Based on raczman/Albator´s work on TrinityCore3 Build: - Add sLog define ¨hack¨ in DatbaseWorkerPool.h to fix some more sLog errors temporarily FYI: Builds on windows --HG-- branch : trunk
This commit is contained in:
Machiavelli
325
src/server/shared/Database/PreparedStatement.cpp
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325
src/server/shared/Database/PreparedStatement.cpp
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/*
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* Copyright (C) 2008-2010 Trinity <http://www.trinitycore.org/>
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "PreparedStatement.h"
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#include "MySQLConnection.h"
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PreparedStatement::PreparedStatement(uint32 index) :
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m_index(index),
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m_stmt(NULL)
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{
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}
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PreparedStatement::~PreparedStatement()
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{
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}
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void PreparedStatement::BindParameters()
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{
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ASSERT (m_stmt);
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uint32 i = 0;
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for (; i < statement_data.size(); i++)
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{
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switch (statement_data[i].type)
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{
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case TYPE_BOOL:
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m_stmt->setBool(i, statement_data[i].data.boolean);
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break;
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case TYPE_UI8:
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case TYPE_UI16:
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case TYPE_UI32:
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m_stmt->setUInt32(i, statement_data[i].data.ui32);
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break;
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case TYPE_I8:
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case TYPE_I16:
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case TYPE_I32:
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m_stmt->setInt32(i, statement_data[i].data.i32);
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break;
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case TYPE_UI64:
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m_stmt->setUInt64(i, statement_data[i].data.ui64);
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break;
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case TYPE_I64:
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m_stmt->setInt64(i, statement_data[i].data.i64);
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break;
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case TYPE_FLOAT:
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m_stmt->setDouble(i, statement_data[i].data.f);
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break;
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case TYPE_STRING:
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m_stmt->setString(i, statement_data[i].str.c_str());
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break;
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}
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}
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#ifdef _DEBUG
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if (i < m_stmt->m_paramCount)
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sLog.outSQLDriver("[WARNING]: BindParameters() for statement %u did not bind all allocated parameters", m_index);
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#endif
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}
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//- Bind to buffer
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void PreparedStatement::setBool(const uint8 index, const bool value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.boolean = value;
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statement_data[index].type = TYPE_BOOL;
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}
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void PreparedStatement::setUInt8(const uint8 index, const uint8 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.ui32 = value;
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statement_data[index].type = TYPE_UI8;
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}
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void PreparedStatement::setUInt16(const uint8 index, const uint16 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.ui32 = value;
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statement_data[index].type = TYPE_UI16;
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}
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void PreparedStatement::setUInt32(const uint8 index, const uint32 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.ui32 = value;
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statement_data[index].type = TYPE_UI32;
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}
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void PreparedStatement::setUInt64(const uint8 index, const uint64 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.ui64 = value;
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statement_data[index].type = TYPE_UI64;
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}
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void PreparedStatement::setInt8(const uint8 index, const int8 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.i32 = value;
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statement_data[index].type = TYPE_I8;
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}
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void PreparedStatement::setInt16(const uint8 index, const int16 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.i32 = value;
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statement_data[index].type = TYPE_I16;
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}
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void PreparedStatement::setInt32(const uint8 index, const int32 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.i32 = value;
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statement_data[index].type = TYPE_I32;
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}
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void PreparedStatement::setInt64(const uint8 index, const int64 value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.i64 = value;
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statement_data[index].type = TYPE_I64;
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}
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void PreparedStatement::setDouble(const uint8 index, const double value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].data.f = value;
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statement_data[index].type = TYPE_FLOAT;
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}
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void PreparedStatement::setString(const uint8 index, const std::string& value)
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{
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if (index >= statement_data.size())
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statement_data.resize(index+1);
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statement_data[index].str = value;
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statement_data[index].type = TYPE_STRING;
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}
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MySQLPreparedStatement::MySQLPreparedStatement(MYSQL_STMT* stmt) :
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m_Mstmt(stmt),
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m_bind(NULL)
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{
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/// Initialize variable parameters
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m_paramCount = mysql_stmt_param_count(stmt);
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m_paramsSet.assign(m_paramCount, false);
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m_bind = new MYSQL_BIND[m_paramCount];
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memset(m_bind, 0, sizeof(MYSQL_BIND)*m_paramCount);
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/// "If set to 1, causes mysql_stmt_store_result() to update the metadata MYSQL_FIELD->max_length value."
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my_bool bool_tmp = 1;
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mysql_stmt_attr_set(stmt, STMT_ATTR_UPDATE_MAX_LENGTH, &bool_tmp);
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}
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MySQLPreparedStatement::~MySQLPreparedStatement()
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{
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ClearParameters();
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mysql_stmt_close(m_Mstmt);
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delete[] m_bind;
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}
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void MySQLPreparedStatement::ClearParameters()
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{
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for (uint32 i=0; i < m_paramCount; ++i)
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{
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delete m_bind[i].length;
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m_bind[i].length = NULL;
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delete[] m_bind[i].buffer;
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m_bind[i].buffer = NULL;
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m_paramsSet[i] = false;
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}
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}
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//- Bind on mysql level
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bool MySQLPreparedStatement::CheckValidIndex(uint8 index)
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{
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if (index >= m_paramCount)
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return false;
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if (m_paramsSet[index])
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sLog.outSQLDriver("[WARNING] Prepared Statement (id: %u) trying to bind value on already bound index (%u).", m_stmt->m_index, index);
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return true;
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}
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void MySQLPreparedStatement::setBool(const uint8 index,const bool value)
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{
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setUInt32(index, value);
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}
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void MySQLPreparedStatement::setUInt8(const uint8 index, const uint8 value)
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{
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setUInt32(index, value);
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}
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void MySQLPreparedStatement::setUInt16(const uint8 index, const uint16 value)
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{
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setUInt32(index, value);
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}
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void MySQLPreparedStatement::setUInt32(const uint8 index, const uint32 value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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setValue(param, MYSQL_TYPE_LONG, &value, sizeof(uint32), true);
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}
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void MySQLPreparedStatement::setUInt64(const uint8 index, const uint64 value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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setValue(param, MYSQL_TYPE_LONGLONG, &value, sizeof(uint64), true);
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}
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void MySQLPreparedStatement::setInt8(const uint8 index, const int8 value)
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{
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setInt32(index, value);
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}
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void MySQLPreparedStatement::setInt16(const uint8 index, const int16 value)
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{
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setInt32(index, value);
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}
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void MySQLPreparedStatement::setInt32(const uint8 index, const int32 value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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setValue(param, MYSQL_TYPE_LONG, &value, sizeof(int32), false);
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}
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void MySQLPreparedStatement::setInt64(const uint8 index, const int64 value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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setValue(param, MYSQL_TYPE_LONGLONG, &value, sizeof(int64), false);
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}
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void MySQLPreparedStatement::setDouble(const uint8 index, const double value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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setValue(param, MYSQL_TYPE_DOUBLE, &value, sizeof(double), (value > 0.0f));
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}
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void MySQLPreparedStatement::setString(const uint8 index, const char* value)
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{
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CheckValidIndex(index);
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m_paramsSet[index] = true;
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MYSQL_BIND* param = &m_bind[index];
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size_t len = strlen(value) + 1;
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param->buffer_type = MYSQL_TYPE_VAR_STRING;
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param->buffer = new char[len];
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param->buffer_length = len;
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param->is_null_value = 0;
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param->length = new unsigned long(len-1);
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memcpy(param->buffer, value, len);
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}
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void MySQLPreparedStatement::setValue(MYSQL_BIND* param, enum_field_types type, const void* value, uint32 len, bool isUnsigned)
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{
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param->buffer_type = type;
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param->buffer = new char[len];
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param->buffer_length = 0;
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param->is_null_value = 0;
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param->length = NULL; // Only != NULL for strings
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param->is_unsigned = isUnsigned;
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memcpy(param->buffer, value, len);
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}
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//- Execution
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PreparedStatementTask::PreparedStatementTask(PreparedStatement* stmt) :
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m_stmt(stmt)
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{
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}
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PreparedStatementTask::~PreparedStatementTask()
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{
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delete m_stmt;
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}
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bool PreparedStatementTask::Execute()
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{
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return m_conn->Execute(m_stmt);
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}
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