132 lines
3.6 KiB
C++
132 lines
3.6 KiB
C++
/*
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* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
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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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#ifndef _PREPAREDSTATEMENT_H
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#define _PREPAREDSTATEMENT_H
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#include "Define.h"
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#include "SQLOperation.h"
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#include <future>
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#include <vector>
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#ifdef __APPLE__
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#undef TYPE_BOOL
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#endif
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//- Union for data buffer (upper-level bind -> queue -> lower-level bind)
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union PreparedStatementDataUnion
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{
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bool boolean;
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uint8 ui8;
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int8 i8;
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uint16 ui16;
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int16 i16;
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uint32 ui32;
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int32 i32;
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uint64 ui64;
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int64 i64;
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float f;
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double d;
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};
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//- This enum helps us differ data held in above union
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enum PreparedStatementValueType
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{
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TYPE_BOOL,
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TYPE_UI8,
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TYPE_UI16,
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TYPE_UI32,
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TYPE_UI64,
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TYPE_I8,
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TYPE_I16,
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TYPE_I32,
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TYPE_I64,
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TYPE_FLOAT,
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TYPE_DOUBLE,
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TYPE_STRING,
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TYPE_BINARY,
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TYPE_NULL
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};
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struct PreparedStatementData
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{
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PreparedStatementDataUnion data;
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PreparedStatementValueType type;
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std::vector<uint8> binary;
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};
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//- Forward declare
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class MySQLPreparedStatement;
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//- Upper-level class that is used in code
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class TC_DATABASE_API PreparedStatement
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{
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friend class PreparedStatementTask;
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friend class MySQLPreparedStatement;
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friend class MySQLConnection;
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public:
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PreparedStatement(uint32 index, uint8 capacity);
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~PreparedStatement();
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void setNull(uint8 index);
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void setBool(uint8 index, bool value);
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void setUInt8(uint8 index, uint8 value);
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void setUInt16(uint8 index, uint16 value);
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void setUInt32(uint8 index, uint32 value);
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void setUInt64(uint8 index, uint64 value);
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void setInt8(uint8 index, int8 value);
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void setInt16(uint8 index, int16 value);
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void setInt32(uint8 index, int32 value);
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void setInt64(uint8 index, int64 value);
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void setFloat(uint8 index, float value);
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void setDouble(uint8 index, double value);
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void setString(uint8 index, std::string const& value);
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void setBinary(uint8 index, std::vector<uint8> const& value);
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uint32 GetIndex() const { return m_index; }
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protected:
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void BindParameters(MySQLPreparedStatement* stmt);
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protected:
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MySQLPreparedStatement* m_stmt;
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uint32 m_index;
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//- Buffer of parameters, not tied to MySQL in any way yet
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std::vector<PreparedStatementData> statement_data;
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PreparedStatement(PreparedStatement const& right) = delete;
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PreparedStatement& operator=(PreparedStatement const& right) = delete;
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};
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//- Lower-level class, enqueuable operation
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class TC_DATABASE_API PreparedStatementTask : public SQLOperation
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{
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public:
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PreparedStatementTask(PreparedStatement* stmt, bool async = false);
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~PreparedStatementTask();
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bool Execute() override;
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PreparedQueryResultFuture GetFuture() { return m_result->get_future(); }
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protected:
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PreparedStatement* m_stmt;
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bool m_has_result;
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PreparedQueryResultPromise* m_result;
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};
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#endif
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