/*************************************************************************************************
*                        
*        模塊名稱:多線程串口通訊類        
*        編制人:liu_sir    日期:2003.4.20 -4.30       
*        版本:v1.0 
*        主要類說明:
*             CComPort 串口類  內聚合一個CSerialPort類用于串口的操作
*                      接收模式說明:
*   	                 1.ManualReceiveByQuery,  //手動查詢接收
*		                 2.ManualReceiveByConst,  //定數接收(按照一定數量接收)
*		                 3.AutoReceiveBySignal,   //信號自動接收
*                        4.AutoReceiveByBreak,	   //自動中斷接收
*                     推薦使用:1或3
*		     CReadComThread 串口讀線程類  和CComPort關聯起來進行操作
*       
*
***************************************************************************************************/
#pragma once
//接收函數
#ifndef COMPORT_H
#define COMPORT_H

typedef void (* FOnReceiveData)(LPVOID,void*,DWORD);
typedef void (* FOnComBreak)(LPVOID,DWORD,COMSTAT stat);


#include "serialport.h"
// CComPort 命令目標
namespace LsComm{

class CReadComThread;

class CComPort 
{
public:
	enum ReceiveMode
	{
		ManualReceiveByQuery,  //手動查詢接收
		ManualReceiveByConst,  //定數接收
		AutoReceiveBySignal,   //信號自動接收
        AutoReceiveByBreak,	   //自動中斷接收
	};
    //Enums
	enum FlowControl
	{
		NoFlowControl,
		CtsRtsFlowControl,
		CtsDtrFlowControl,
		DsrRtsFlowControl,
		DsrDtrFlowControl,
		XonXoffFlowControl
	};

	enum Parity
	{    
		EvenParity,
		MarkParity,
		NoParity,
		OddParity,
		SpaceParity
	};

	enum StopBits
	{
		OneStopBit,
		OnePointFiveStopBits,
		TwoStopBits
	};

	CComPort();
	virtual ~CComPort();


	  //1.打開,關閉串口函數
	  void Open(int nPort,ReceiveMode mode=AutoReceiveBySignal, DWORD dwBaud = 9600, Parity parity = NoParity, BYTE DataBits = 8, 
		  StopBits stopbits = OneStopBit, FlowControl fc = NoFlowControl);
      void Close();

      //2.設置接收函數,中斷處理函數 
	  void SetReceiveFunc(FOnReceiveData pfnOnReceiveData,LPVOID pSender);
      void SetBreakHandleFunc(FOnComBreak pfnOnComBreak);

	  //3.獲取自身參數
	  int GetCurPortNum() { return this->m_CurPortNum;  }
	  CSerialPort* GetSerialPort(); 
	  HANDLE GetCloseHandle();
	  ReceiveMode GetReceiveMode();

      //4.(線程類)通知接收處理函數     
	  void ReceiveData(void* pBuf,DWORD InBufferCount);//線程調用的接收函數
	  void ComBreak(DWORD dwMask);

	  //6.輸入,輸出函數--返回實際個數
	  DWORD GetInBufferCount();
	  DWORD GetInput(void* pBuf,DWORD Count,DWORD dwMilliseconds=1000);
	  DWORD Output(void* pBuf,DWORD Count);
	  bool IsOverlapped() { return m_IsOverlapped; }
protected:
	CSerialPort* m_pPort;                           //內含串口類
	CReadComThread* m_pReadThread;                  //讀串口線程 

	LPVOID m_pSender;                               //保存的父窗體指針
	int m_CurPortNum;                               //當前端口號 
    FOnReceiveData m_pfnOnReceiveData;              //接收信號函數
	FOnComBreak    m_pfnOnComBreak;                 //串口事件處理函數
    ReceiveMode    m_RecvMode;                      //接收模式

	HANDLE         m_hWriteEvent;                    //寫事件
	OVERLAPPED     m_WriteOverlapped;                //寫重疊結構

	bool m_IsOverlapped;                            //是否重疊結構;
private:
    HANDLE m_hCloseEvent; //E: A event handle to close thread  //Chinese:結束線程事件

};

DWORD WINAPI ThreadFunc(LPVOID  lpParam ); //線程調用函數 

class CReadComThread
{
public:
    /*1.構造與系構函數
	*/
	CReadComThread();
    virtual ~CReadComThread();          
    
	/* 2.創建,結束,復位 
	*/
    void Create();                         //創建線程
    void Terminate();                      //結束線程
    void Resume();                         //復位 
	bool IsTerminated()	{return this->m_IsTerminated; }
     
	/*3.綁定串口,異步讀取
	*/
	void BandSerialPort(CComPort* pPort);  //綁定串口
	DWORD ReadInput(void* pBuf,DWORD Count,DWORD dwMilliseconds);//異步讀取輸入

	friend DWORD WINAPI ThreadFunc(LPVOID  lpParam ); 
protected:
	DWORD dwThreadId;//線程號  
    bool IsClose;
    /*4.設置異步讀取事件,異步中斷事件以及處理事件
	*/
	bool SetReadEvent(OVERLAPPED& overlapped);//設置啟動讀事件
	bool HandleReadEvent(OVERLAPPED& overlapped);//處理讀事件
    bool HandleData(); //處理讀取數據
    
	bool SetBreakEvent(DWORD& dwMask);//設置串口中斷事件,通過DWMask參數的改變返回監聽狀態
	bool HandleBreakEvent(DWORD dwMask);//處理串口中斷事件

	/*5.手動模式,信號模式,中斷模式執行線程
	*/
	void ExecuteByAutoSignalRecvMode();
	void ExecuteByAutoBreakRecvMode();
	void ExecuteByManualQueryRecvMode();
	void ExecuteByManualConstRecvMode();
    void Execute(void);                    //線程執行
   
private:
	HANDLE m_hThread;           //線程句柄
	CComPort* m_pPort;          //關聯串口指針

    byte  m_InputBuffer[2048];  //接收緩沖區
	byte* m_pBuffer;            //實際的內存 
	DWORD m_InBufferCount;      //接收個數 

	OVERLAPPED m_ReadOverlapped;     //讀取重疊結構
	OVERLAPPED m_BreakOverlapped;    //串口中斷事件結構
    
	bool m_IsTerminated;            //是否結束線程 

};

}//namespace

#endif