From 1f66d719f2cbbcb144b5080c89dd73fcae261798 Mon Sep 17 00:00:00 2001 From: StormBytePP Date: Sat, 15 Aug 2015 02:19:10 +0200 Subject: Core/BuildSystem: Merge collision, debugging, threading, utilities and configuration into "common" which does not depend on shared anymore and moved database out of shared library These changes enables to build tools only without even having MySQL installed --- src/server/database/Database/PreparedStatement.h | 174 +++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 src/server/database/Database/PreparedStatement.h (limited to 'src/server/database/Database/PreparedStatement.h') diff --git a/src/server/database/Database/PreparedStatement.h b/src/server/database/Database/PreparedStatement.h new file mode 100644 index 00000000000..2b8ce8aac2d --- /dev/null +++ b/src/server/database/Database/PreparedStatement.h @@ -0,0 +1,174 @@ +/* + * Copyright (C) 2008-2015 TrinityCore + * + * 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, see . + */ + +#ifndef _PREPAREDSTATEMENT_H +#define _PREPAREDSTATEMENT_H + +#include +#include "SQLOperation.h" + +#ifdef __APPLE__ +#undef TYPE_BOOL +#endif + +//- Union for data buffer (upper-level bind -> queue -> lower-level bind) +union PreparedStatementDataUnion +{ + bool boolean; + uint8 ui8; + int8 i8; + uint16 ui16; + int16 i16; + uint32 ui32; + int32 i32; + uint64 ui64; + int64 i64; + float f; + double d; +}; + +//- This enum helps us differ data held in above union +enum PreparedStatementValueType +{ + TYPE_BOOL, + TYPE_UI8, + TYPE_UI16, + TYPE_UI32, + TYPE_UI64, + TYPE_I8, + TYPE_I16, + TYPE_I32, + TYPE_I64, + TYPE_FLOAT, + TYPE_DOUBLE, + TYPE_STRING, + TYPE_NULL +}; + +struct PreparedStatementData +{ + PreparedStatementDataUnion data; + PreparedStatementValueType type; + std::string str; +}; + +//- Forward declare +class MySQLPreparedStatement; + +//- Upper-level class that is used in code +class PreparedStatement +{ + friend class PreparedStatementTask; + friend class MySQLPreparedStatement; + friend class MySQLConnection; + + public: + explicit PreparedStatement(uint32 index); + ~PreparedStatement(); + + void setBool(const uint8 index, const bool value); + void setUInt8(const uint8 index, const uint8 value); + void setUInt16(const uint8 index, const uint16 value); + void setUInt32(const uint8 index, const uint32 value); + void setUInt64(const uint8 index, const uint64 value); + void setInt8(const uint8 index, const int8 value); + void setInt16(const uint8 index, const int16 value); + void setInt32(const uint8 index, const int32 value); + void setInt64(const uint8 index, const int64 value); + void setFloat(const uint8 index, const float value); + void setDouble(const uint8 index, const double value); + void setString(const uint8 index, const std::string& value); + void setNull(const uint8 index); + + protected: + void BindParameters(); + + protected: + MySQLPreparedStatement* m_stmt; + uint32 m_index; + std::vector statement_data; //- Buffer of parameters, not tied to MySQL in any way yet + + PreparedStatement(PreparedStatement const& right) = delete; + PreparedStatement& operator=(PreparedStatement const& right) = delete; +}; + +//- Class of which the instances are unique per MySQLConnection +//- access to these class objects is only done when a prepared statement task +//- is executed. +class MySQLPreparedStatement +{ + friend class MySQLConnection; + friend class PreparedStatement; + + public: + MySQLPreparedStatement(MYSQL_STMT* stmt); + ~MySQLPreparedStatement(); + + void setBool(const uint8 index, const bool value); + void setUInt8(const uint8 index, const uint8 value); + void setUInt16(const uint8 index, const uint16 value); + void setUInt32(const uint8 index, const uint32 value); + void setUInt64(const uint8 index, const uint64 value); + void setInt8(const uint8 index, const int8 value); + void setInt16(const uint8 index, const int16 value); + void setInt32(const uint8 index, const int32 value); + void setInt64(const uint8 index, const int64 value); + void setFloat(const uint8 index, const float value); + void setDouble(const uint8 index, const double value); + void setString(const uint8 index, const char* value); + void setNull(const uint8 index); + + protected: + MYSQL_STMT* GetSTMT() { return m_Mstmt; } + MYSQL_BIND* GetBind() { return m_bind; } + PreparedStatement* m_stmt; + void ClearParameters(); + bool CheckValidIndex(uint8 index); + std::string getQueryString(std::string const& sqlPattern) const; + + private: + void setValue(MYSQL_BIND* param, enum_field_types type, const void* value, uint32 len, bool isUnsigned); + + private: + MYSQL_STMT* m_Mstmt; + uint32 m_paramCount; + std::vector m_paramsSet; + MYSQL_BIND* m_bind; + + MySQLPreparedStatement(MySQLPreparedStatement const& right) = delete; + MySQLPreparedStatement& operator=(MySQLPreparedStatement const& right) = delete; +}; + +typedef std::future PreparedQueryResultFuture; +typedef std::promise PreparedQueryResultPromise; + +//- Lower-level class, enqueuable operation +class PreparedStatementTask : public SQLOperation +{ + public: + PreparedStatementTask(PreparedStatement* stmt, bool async = false); + ~PreparedStatementTask(); + + bool Execute() override; + PreparedQueryResultFuture GetFuture() { return m_result->get_future(); } + + protected: + PreparedStatement* m_stmt; + bool m_has_result; + PreparedQueryResultPromise* m_result; +}; +#endif -- cgit v1.2.3