baseudp.h

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// BaseUDP.h: interface for the CBaseUDP class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_BASEUDP_H__138D12AA_4FF1_4505_AA4A_77CF31FEAE8F__INCLUDED_)
#define AFX_BASEUDP_H__138D12AA_4FF1_4505_AA4A_77CF31FEAE8F__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define ERROR_UDP_ADDR		-1
#define ERROR_UDP_SOCKET	-2
#define ERROR_UDP_PARAM		-3
#define ERROR_UDP_SEND		-4
#define ERROR_UDP_BIND		-5
#define ERROR_UDP_TIMEOUT	-6

#define UDP_TIME_OUT		10

#include <winsock.h>
#include "struct.h"
#pragma comment(lib, "ws2.lib")

class CBaseUDP
{
public:
	int Recv(char *pcaData, const int nLength, int sk, sockaddr_in saClient, bool bClose = true);
	virtual int OnDataRecv(char *szData, int nLength, int sk, sockaddr_in saClient, int nSaLength);
	static int WaitForDataRecv(int sk, long nTimeout);
	int RunAsServer(unsigned short nPort);
	int Send(char *szData, int nLength, const char *szIP, unsigned short port, sockaddr_in &saClient);
	int Send(char *szData, int nLength, int sk, sockaddr_in saClient, int nSockaddrLen);
	static void WriteLog(char* sfmt,...);

	int	m_skServer;

	CBaseUDP();
	virtual ~CBaseUDP();
protected:
	char* m_pRecvBuf;
private:	
	static DWORD WINAPI DataThread(LPVOID lpvoid);
	int CheckDataValidate(int nlen);
};

#endif // !defined(AFX_BASEUDP_H__138D12AA_4FF1_4505_AA4A_77CF31FEAE8F__INCLUDED_)