#ifndef DBCORRESPONDMANAGER_HEAD_FILE
#define DBCORRESPONDMANAGER_HEAD_FILE


#pragma once

#include "Stdafx.h"

//////////////////////////////////////////////////////////////////////////
//请求结构
struct tagDBRequestHead
{
    BYTE  cbCache;
    DWORD dwUserID;
    DWORD dwContextID;
    WORD  wRequestID;
    WORD  wDataSize;
};

typedef CList<tagDBRequestHead *> CDBRequestList;
typedef CWHArray<DWORD> CDBRequestUserArray;

//////////////////////////////////////////////////////////////////////////
class CDBCorrespondManager : public IDBCorrespondManager
{
    //变量定义
protected:
    bool							m_bService;							//服务状态
    CCriticalSection				m_AsyncCritical;					//锁定对象

    //数据引擎
public:
    IDataBaseEngine *				m_pIKernelDataBaseEngine;			//数据引擎

    //数据记录
public:
    CDBRequestList                  m_DBRequestList;                    //请求链表
    CDBRequestUserArray             m_DBRequestUserArray;               //请求用户

public:
    CDBCorrespondManager(void);
    ~CDBCorrespondManager(void);

    //基础接口
public:
    //释放对象
    virtual VOID Release() { delete this; }
    //接口查询
    virtual VOID * QueryInterface(REFGUID Guid, DWORD dwQueryVer);

    //基础接口
public:
    //启动服务
    virtual bool StartService();
    //停止服务
    virtual bool ConcludeService();

    //配置接口
public:
    //配置模块
    virtual bool __cdecl InitDBCorrespondManager(IDataBaseEngine * pIDataBaseEngine);

    //控制事件
public:
    //请求事件
    virtual bool __cdecl PostDataBaseRequest(DWORD dwUserID, WORD wRequestID, DWORD dwContextID, VOID * pData, WORD wDataSize, BYTE  cbCache = FALSE);

    //同步事件
public:
    //请求完成
    virtual bool __cdecl OnPostRequestComplete(DWORD dwUserID, bool bSucceed);

    //定时事件
public:
    //定时事件
    virtual bool __cdecl OnTimerNotify();

    //功能函数
public:
    //已经提交请求
    bool IsPostDBRequest(DWORD dwUserID);
    //获得索引
    INT_PTR GetUserArrayIndex(DWORD dwUserID);
    //缓冲请求
    bool AmortizeSyncData(DWORD dwUserID, WORD wRequestID, DWORD dwContextID, VOID * pData, WORD wDataSize, BYTE  cbCache = FALSE);
    //执行缓冲
    VOID PerformAmortisation();
    //清除缓存
    VOID ClearAmortizeData();
};

//////////////////////////////////////////////////////////////////////////

#endif