tcpipimpextimer.h

一个tcp/ip的程序,实现上传和下载等功能

#ifndef __TcpipImpExTIMER_H__
#define __TcpipImpExTIMER_H__

#include <e32base.h>

/**
 *
 * @class	MTimeOutNotifier TcpipExTimer.h
 * @brief	This class specifies the function to be called when a timeout occurs.
 *
 * Copyright (c) EMCC Software Ltd 2003
 * @version	1.0
 *
 */
class MTimeOutNotifier
    {
public:
/*!
  @function TimerExpired

  @discussion The function to be called when a timeout occurs
  */
    virtual void TimerExpired() = 0;
    };


 /**
  *
  * @class	CTcpipImpExTimer TcpipExTimer.h
  * @brief	This class will notify an object after a specified timeout.
  *
  * Copyright (c) EMCC Software Ltd 2003
  * @version	1.0
  *
  */
class CTcpipImpExTimer : public CTimer
    {
public:
/*!
  @function NewL

  @discussion Create a CTcpipImpExTimer object
  @param aPriority priority to use for this timer
  @param aTimeOutNotify object to notify of timeout event
  @result a pointer to the created instance of CTcpipImpExTimer
  */
	static CTcpipImpExTimer* NewL(const TInt aPriority, MTimeOutNotifier& aTimeOutNotify);

/*!
  @function NewL

  @discussion Create a CTcpipImpExTimer object
  @param aPriority priority to use for this timer
  @param aTimeOutNotify object to notify of timeout event
  @result a pointer to the created instance of CTcpipImpExTimer
  */
    static CTcpipImpExTimer* NewLC(const TInt aPriority, MTimeOutNotifier& aTimeOutNotify);

/*!
  @function ~CTcpipImpExTimer

  @discussion Destroy the object and release all memory objects
  */
	~CTcpipImpExTimer();

protected: // From CTimer
/*!
  @function RunL

  @discussion Invoked when a timeout occurs
  */
    virtual void RunL();

private:
/*!
  @function CTcpipImpExTimer

  @discussion Perform the first phase of two phase construction
  @param aPriority priority to use for this timer
  @param aTimeOutNotify An observer to notify
  */
	CTcpipImpExTimer(const TInt aPriority, MTimeOutNotifier& aTimeOutNotify);

/*!
  @function ConstructL

  @discussion Perform the second phase construction of a CTcpipImpExTimer
  */
    void ConstructL();

private: // Member variables

    /*! @var The observer for this objects events */
	MTimeOutNotifier& iNotify;
    };

#endif // __TcpipImpExTIMER_H__