mirror of
https://github.com/araxiaonline/TrinityCore.git
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123 lines
3.8 KiB
C++
123 lines
3.8 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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#include <variant>
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#ifdef __APPLE__
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#undef TYPE_BOOL
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#endif
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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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std::variant<
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bool, // TYPE_BOOL
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uint8, // TYPE_UI8
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uint16, // TYPE_UI16
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uint32, // TYPE_UI32
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uint64, // TYPE_UI64
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int8, // TYPE_I8
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int16, // TYPE_I16
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int32, // TYPE_UI32
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int64, // TYPE_UI64
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float, // TYPE_FLOAT
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double, // TYPE_DOUBLE
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std::string, // TYPE_STRING
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std::vector<uint8>> // TYPE_BINARY
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data;
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PreparedStatementValueType type;
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};
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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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public:
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PreparedStatement(uint32 index, uint8 capacity);
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~PreparedStatement();
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void setNull(const uint8 index);
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void setBool(const uint8 index, const bool value);
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void setUInt8(const uint8 index, const uint8 value);
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void setUInt16(const uint8 index, const uint16 value);
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void setUInt32(const uint8 index, const uint32 value);
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void setUInt64(const uint8 index, const uint64 value);
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void setInt8(const uint8 index, const int8 value);
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void setInt16(const uint8 index, const int16 value);
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void setInt32(const uint8 index, const int32 value);
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void setInt64(const uint8 index, const int64 value);
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void setFloat(const uint8 index, const float value);
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void setDouble(const uint8 index, const double value);
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void setString(const uint8 index, const std::string& value);
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void setBinary(const uint8 index, const std::vector<uint8>& value);
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uint32 GetIndex() const { return m_index; }
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std::vector<PreparedStatementData> const& GetParameters() const { return statement_data; }
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protected:
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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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