162 lines
4.9 KiB
C
162 lines
4.9 KiB
C
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#ifndef DB_DATA_CLIENT_HANDLER_H__
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#define DB_DATA_CLIENT_HANDLER_H__
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/*
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DBClient逻辑处理类。处理来自客户端(主要是逻辑服)的DB请求，这里之关系逻辑处理，不关心数据接收相关的处理。
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原来的DBClient将通信线程和DB请求逻辑处理和在一起，在逻辑服DB操作比较频繁、DB查询压力大，查询和更新DB
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比较缓慢的情况下，会导致堆积的未处理请求越来越多，延迟很慢，并且由于DBClient数据处理不过来导致逻辑服那边堆
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积的 DB请求数据包也越来越多，造成逻辑服内存消耗巨大。
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为解决上述问题，将DBClient的数据接收和处理逻辑分开。接收数据线程只关心数据接收，不处理逻辑，这样不会造
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成堆积数据包；同时逻辑处理区分优先级，不是一次性处理完所有大量玩家的存盘数据，分时处理，并且设定优先级策略，
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查询数据的优先级高于更新数据的优先级。
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*/
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class CDBDataClientHandler :
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public wylib::thread::CBaseThread,
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public CSendPacketPool
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{
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public:
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friend class CDBDataCache;
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// ctor and dtor
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CDBDataClientHandler();
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~CDBDataClientHandler();
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/*
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* Comments: 开始运行。
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* @Param ILogicDBRequestHost* pHost:
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* @Param CSQLConenction *lpSQLConnection:
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* @Return bool: 成功返回true；失败返回false
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* @Remark: 开启后台线程并且等待后台线程开始运行。
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*/
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bool Start(ILogicDBRequestHost* pHost, CSQLConenction *lpSQLConnection);
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/*
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* Comments:
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* @Return bool:
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* @Remark:
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*/
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bool Stop();
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/*
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* Comments: 添加一个DB请求的消息
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* Param jxSrvDef::INTERSRVCMD nCmd: 消息Id
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* Param CDataPacketReader & packet: 消息数据
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* @Return void:
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* @Remark: 将DB请求数据添加到队列中。这里不处理数据。供通信线程调用
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*/
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void AddMessage(jxSrvDef::INTERSRVCMD nCmd, CDataPacketReader& packet);
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CLogicDBReqestHandler& GetDBRequestHandler() { return m_LogicDBReqHandler; }
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//追踪内存使用情况
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void Trace();
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protected:
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/*
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* Comments: 设置读操作标记
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* Param BOOL flag:
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* @Return void:
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* @Remark: 如果当前有读操作未完成，flag设置为true；否则设置为false
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*/
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inline void SetReadOpFlag(BOOL flag)
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{
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InterlockedExchange(&m_bHasReadOp, flag);
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}
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/*
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* Comments: 获取读操作标记
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* @Return bool: 如果当前存在读操作，返回true，否则返回false
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* @Remark:
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*/
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BOOL HasReadOPFlag() const { return m_bHasReadOp; }
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/*
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* Comments: 判断当前是否是读操作
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* Param jxSrvDef::INTERSRVCMD nCmd:
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* @Return bool:
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* @Remark:
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*/
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bool IsReadCmd(jxSrvDef::INTERSRVCMD nCmd);
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/*
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* Comments: 线程处理函数
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* @Return void:
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* @Remark:
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*/
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virtual void OnRountine();
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/*
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* Comments: 线程逻辑处理函数
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* @Return void:
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* @Remark:
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*/
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void ThreadLogicProc();
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/*
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* Comments: DB请求逻辑处理
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* @Return void:
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* @Remark: 遍历DB请求列表并且处理。对于玩家存盘请求，直接加入到ActorCache数据里头；对于查询数据直接执行SQL查询
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*/
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void RunOne();
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/*
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* Comments: 分配数据包
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* @Return void:
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* @Remark:
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*/
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CDataPacket* AllocPacket();
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/*
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* Comments: 释放用完的数据包
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* Param CDataPacket * packet:
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* @Return void:
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* @Remark:
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*/
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void FreePacket(CDataPacket* packet);
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/*
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* Comments: 销毁数据包列表
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* Param CQueueList<CDataPacket * > & pkgList:
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* @Return void:
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* @Remark: 删除对象
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*/
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void DestroyPacketList(CQueueList<CDataPacket*>& pkgList);
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/*
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* Comments: 处理DB请求消息
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* Param jxSrvDef::INTERSRVCMD nCmd: 消息码
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* Param CDataPacket & packet: 消息参数
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* @Return void:
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* @Remark:
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*/
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void HandleDBMessage(jxSrvDef::INTERSRVCMD nCmd, CDataPacket &packet);
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private:
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CQueueList<CDataPacket*> m_sMsgList; // DB请求消息列表（格式：消息ID+消息参数）。
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CCSLock m_sMsgListLock;
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CQueueList<CDataPacket*> m_sFreeList; // 自由消息数据包
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CCSLock m_sFreeListLock;
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//CBufferAllocator m_allocator; // BuffAllocator，用于DataPacket的内存分配
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CDBDataCache m_sActorCacheData; // 角色DB存盘Cache数据
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volatile long m_bHasReadOp; // 当前是否有读DB操作
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volatile long m_lStop; // 线程停止标记
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volatile long m_lHasStart; //是否已经启动
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volatile long m_lLogicIsRunning; //逻辑线程是否已经启动
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ILogicDBRequestHost* m_pHost; //
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CCSLock m_sStartLock; // 线程开始启动锁
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#ifdef WIN32
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HANDLE m_hStartEvent; //启动信号事件
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HANDLE m_hStopEvent; //停止信号事件
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#else
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sem_t m_hStartEvent; //启动信号事件
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sem_t m_hStopEvent; //停止信号事件
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#endif
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CLogicDBReqestHandler m_LogicDBReqHandler; // DB请求处理
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static int s_nDBHandleSleep; // DB逻辑处理睡眠时间
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TICKCOUNT m_memoryTimer; //定时器
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};
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#endif // _DB_DATA_CLIENT_HANDLER_H__
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