#ifndef _CUDP_SOCKET_H
#define _CUDP_SOCKET_H
#include <afxsock.h>
#include <vector>
using namespace std;

#define MAX_UDP_BUF_LEN 30745//25600  30745 SMData´óС

//#define WM_RECEIVE_NET_DATA (WM_USER + 88)
//typedef void ( CALLBACK *UDPRevDataCALLBACK )( unsigned char *rxdata, DWORD lLen, UINT32 Param ); 
typedef void ( CALLBACK *UDPRevDataCALLBACK )(const void* buffer, int length, LPVOID data);

class CUDPSocket : public CAsyncSocket
{
private:
	CString                 RemoteIP;
	unsigned int            RemotePort;
	CString                 LocalIP;
	unsigned int            LocalPort;
	unsigned char           SendHDNum;
	unsigned int            ReceiveNum;
	bool                    bRecSearchHead;
	
	int						m_Length;
	char			ReceiveBuf[MAX_UDP_BUF_LEN];
    UDPRevDataCALLBACK		RevData;
	LPVOID					m_Param;
public:

    CUDPSocket();
	void SetParams(CString localIP,unsigned int localPort,CString remoteIP,unsigned int remotePort);
    virtual ~CUDPSocket();
    bool StartListening(bool flag  = false);
	bool StopListening()
	{
		CAsyncSocket::Close();
		return true;
	}
	void SetLocalIP( CString ip )
	{
		LocalIP = ip;
	}
	void SetLocalPort( unsigned int port )
	{
		LocalPort = port;
	}
	void SetRomoteIP( CString ip )
	{
		RemoteIP = ip;
	}
	void SetRemotePort( unsigned int port )
	{
		RemotePort = port;
	}
	void SetCallBack( UDPRevDataCALLBACK DataCallBack, LPVOID Param );
    bool WriteBuffer( const void *buf, unsigned int len );
   
protected:
    virtual void OnReceive( int nErrorCode );
};

#endif //CUdpSocket