线程类的相关操作均十分简单。线程的执行入口是从Start()函数开始，其将调用函数ThreadFunction，ThreadFunction再调用实际的Run函数，执行实际的任务。
CThreadPool
CThreadPool是线程的承载容器，一般可以将其实现为堆栈、单向队列或者双向队列。在我们的系统中我们使用STL Vector对线程进行保存。CThreadPool的实现代码如下：
- class CThreadPool {
- friend class CWorkerThread;
- private: unsigned int m_MaxNum; //the max thread num that can create at the same time
- unsigned int m_AvailLow; //The min num of idle thread that shoule kept unsigned int m_AvailHigh; //The max num of idle thread that kept at the same time
- unsigned int m_AvailNum; //the normal thread num of idle num; unsigned int m_InitNum; //Normal thread num;
- protected:
- CWorkerThread* GetIdleThread(void); void AppendToIdleList(CWorkerThread* jobthread);
- void MoveToBusyList(CWorkerThread* idlethread); void MoveToIdleList(CWorkerThread* busythread);
- void DeleteIdleThread(int num); void CreateIdleThread(int num);
- public:
- CThreadMutex m_BusyMutex; //when visit busy list,use m_BusyMutex to lock and unlock CThreadMutex m_IdleMutex; //when visit idle list,use m_IdleMutex to lock and unlock
- CThreadMutex m_JobMutex; //when visit job list,use m_JobMutex to lock and unlock CThreadMutex m_VarMutex;
- CCondition m_BusyCond; //m_BusyCond is used to sync busy thread list CCondition m_IdleCond; //m_IdleCond is used to sync idle thread list
- CCondition m_IdleJobCond; //m_JobCond is used to sync job list CCondition m_MaxNumCond;
- vector<CWorkerThread*> m_ThreadList;
- vector<CWorkerThread*> m_BusyList; //Thread List vector<CWorkerThread*> m_IdleList; //Idle List
