// RtuDriver.h: interface for the CRtuDriver class.
//
//////////////////////////////////////////////////////////////////////


#include "predef.h"
//專線通訊方式
class CRtuDriver  
{
public:
	CRtuDriver();
	virtual ~CRtuDriver();
protected:
	int m_ref; //引用計數.
	HANDLE m_hcomm; //通訊口文件句柄.
	DWORD m_tunnel; //通道號.
	CPtrList m_task; //任務隊列.
public:
	virtual void SetCommHandle(HANDLE handle,DWORD tun)=0;
	// param1:文件句柄,param2:HPC卡號,param3:通道號.
	virtual DWORD GetData(RTUDATA* lrtu,int numrtu,int type,BWBUFFER* bwbuf,int buflen,int& bwp,CPtrList& taskout,CPtrList& taskin)=0; //在此處理規約與上送數據.
	virtual void ExcuteCmd(PRTUTASK ptask)=0; //執行命令.
	virtual void GetDriverVersion(char* str)=0;//返回規約名稱及版本.
	virtual void AddRef()=0; //增加計數
	virtual void Release(void)=0; //減少計數,為零時釋放對象.
};