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Servers/服务器组件/内核引擎/DataBaseEngine.h
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Servers/服务器组件/内核引擎/DataBaseEngine.h
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#ifndef DATA_BASE_ENGINE_HEAD_FILE
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#define DATA_BASE_ENGINE_HEAD_FILE
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#pragma once
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//组件头文件
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#include "KernelEngineHead.h"
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#include "KernelEngine.h"
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#include "QueueService.h"
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//////////////////////////////////////////////////////////////////////////
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//ADO 错误类
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class CADOError : public IDataBaseException
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{
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//变量定义
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protected:
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enSQLException m_enErrorType; //错误代号
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CString m_strErrorDescribe; //错误信息
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//函数定义
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public:
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//构造函数
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CADOError();
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//析构函数
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virtual ~CADOError();
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//基础接口
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public:
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//释放对象
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virtual void __cdecl Release() { return ; }
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//接口查询
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virtual void * __cdecl QueryInterface(const IID & Guid, DWORD dwQueryVer);
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//功能接口
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public:
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//异常代码
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virtual HRESULT __cdecl GetExceptionResult(){return 0;};
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//异常类型
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virtual enSQLException __cdecl GetExceptionType() { return m_enErrorType; }
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//异常描述
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virtual LPCTSTR __cdecl GetExceptionDescribe(){ return m_strErrorDescribe; }
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//功能函数
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public:
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//设置错误
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void SetErrorInfo(enSQLException enErrorType, LPCTSTR pszDescribe);
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};
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//////////////////////////////////////////////////////////////////////////
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//数据库对象
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class KERNEL_ENGINE_CLASS CDataBase : public IDataBase
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{
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//信息变量
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protected:
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CADOError m_ADOError; //错误对象
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CString m_strConnect; //连接字符串
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CString m_strErrorDescribe; //错误信息
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//状态变量
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protected:
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DWORD m_dwConnectCount; //重试次数
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DWORD m_dwConnectErrorTime; //错误时间
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const DWORD m_dwResumeConnectCount; //恢复次数
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const DWORD m_dwResumeConnectTime; //恢复时间
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//内核变量
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protected:
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_CommandPtr m_DBCommand; //命令对象
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_RecordsetPtr m_DBRecordset; //记录集对象
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_ConnectionPtr m_DBConnection; //数据库对象
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//函数定义
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public:
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//构造函数
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CDataBase();
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//析构函数
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virtual ~CDataBase();
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//基础接口
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public:
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//释放对象
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virtual void __cdecl Release() {delete this; }
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//接口查询
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virtual void * __cdecl QueryInterface(const IID & Guid, DWORD dwQueryVer);
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//管理接口
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public:
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//打开连接
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virtual void __cdecl OpenConnection();
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//关闭连接
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virtual void __cdecl CloseConnection();
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virtual bool __cdecl SetConnectionInfo(DWORD dwDBAddr, WORD wPort, LPCTSTR szDBName, LPCTSTR szUser, LPCTSTR szPassword);
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//设置信息
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virtual bool __cdecl SetConnectionInfo(LPCTSTR szDBAddr, WORD wPort, LPCTSTR szDBName, LPCTSTR szUser, LPCTSTR szPassword);
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//清除参数
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virtual VOID __cdecl ClearParameters();
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//获取参数
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virtual VOID __cdecl GetParameter(LPCTSTR pszParamName, CDBVarValue & DBVarValue);
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//插入参数
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virtual VOID __cdecl AddParameter(LPCTSTR pszName, DataTypeEnum Type, ParameterDirectionEnum Direction, LONG lSize, CDBVarValue & DBVarValue);
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//切换记录
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virtual VOID __cdecl NextRecordset();
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//关闭记录
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virtual VOID __cdecl CloseRecordset();
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//绑定对象
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virtual VOID __cdecl BindToRecordset(CADORecordBinding * pBind);
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//记录接口
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public:
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//往下移动
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virtual VOID __cdecl MoveToNext();
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//移到开头
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virtual VOID __cdecl MoveToFirst();
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//是否结束
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virtual bool __cdecl IsRecordsetEnd();
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//获取数目
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virtual LONG __cdecl GetRecordCount();
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//返回数值
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virtual LONG __cdecl GetReturnValue();
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//获取数据
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virtual VOID __cdecl GetRecordsetValue(LPCTSTR pszItem, CDBVarValue & DBVarValue);
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//控制接口
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public:
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//存储过程
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virtual VOID __cdecl ExecuteProcess(LPCTSTR pszSPName, bool bRecordset);
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//执行语句
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virtual VOID __cdecl ExecuteSentence(LPCTSTR pszCommand, bool bRecordset);
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public:
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//接口函数引用的函数
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//是否打开
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virtual bool __cdecl IsRecordsetOpened();
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//内部函数
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//获取错误
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LPCTSTR GetComErrorDescribe(CComError & ComError);
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//设置错误
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void SetErrorInfo(enSQLException enErrorType, LPCTSTR pszDescribe);
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public:
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//设置存储过程
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virtual void __cdecl SetSPName(LPCTSTR pszSpName);
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virtual bool __cdecl ExecuteCommand(bool bRecordset);
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//字段接口
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public:
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, BYTE & bValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, WORD & wValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, INT & nValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, LONG & lValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, DWORD & ulValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, UINT & ulValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, DOUBLE & dbValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, __int64 & llValue);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, TCHAR szBuffer[], UINT uSize);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, COleDateTime & Time);
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//获取参数
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virtual bool __cdecl GetFieldValue(LPCTSTR lpFieldName, bool & bValue);
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//执行接口
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public:
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//执行语句
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virtual bool __cdecl Execute(LPCTSTR pszCommand);
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virtual void __cdecl ExecuteSql(LPCTSTR sql,LONG DBValue);
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};
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//////////////////////////////////////////////////////////////////////////
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//数据库管理类
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class CDataBaseEngine : public IDataBaseEngine
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{
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//内核变量
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protected:
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bool m_bService; //运行标志
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IDataBaseEngineSink * m_pIDataBaseEngineSink; //通知钩子
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//函数定义
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public:
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//构造函数
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CDataBaseEngine(void);
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//析构函数
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virtual ~CDataBaseEngine(void);
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//基础接口
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public:
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//释放对象
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virtual void __cdecl Release() {delete this; }
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//接口查询
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virtual void * __cdecl QueryInterface(const IID & Guid, DWORD dwQueryVer);
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//服务接口
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public:
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//启动服务
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virtual bool __cdecl StartService();
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//停止服务
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virtual bool __cdecl ConcludeService();
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virtual bool __cdecl SetDataBaseEngineSink(IUnknownEx * pIUnknownEx);
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//队列接口
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public:
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//时间事件
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virtual bool __cdecl PostDataBaseTimer(DWORD dwTimerID, WPARAM dwBindParameter);
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//控制事件
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virtual bool __cdecl PostDataBaseControl(WORD wControlID, VOID * pData, WORD wDataSize);
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//请求事件
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virtual bool __cdecl PostDataBaseRequest(WORD wRequestID, DWORD dwContextID, VOID * pData, WORD wDataSize);
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};
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//////////////////////////////////////////////////////////////////////////
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#endif
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