tcpclnt.h

“TCP/IP协议库及例程”和“PPP-TCP/IP协议库及例程”系英创信息技术有限公司拥有自主知识产权之软件产品（软件产品登记证书号：川DGY-2004-0033）。上述软件的获得者仅允许将上述软件

#if !defined( _TCPCLNT_H )
#define _TCPCLNT_H

#define   HeartBeat      400

enum CONN_STATE { CLOSED=0, START, OPEN, FAIL };

struct SERVER_ID
{
   char       IPStr[20];
   int        Port;
   SERVER_ID& operator = (SERVER_ID& );
};

class TCPClientManager
{
protected:
   int               Conno;
   CONN_STATE        ConnState;

   unsigned long     Timeout;		// = 0: no timeout
   unsigned long     StartTick;

   unsigned char     DataBuf[1500];

   struct SERVER_ID* pHost;


public:
   TCPClientManager( );
   ~TCPClientManager( );

   void Init( struct SERVER_ID* pSvrID );

   // 1 Tick = 55ms; NumTick=0: no timeout
   int SetTimeoutCnt( long NumTick );
   // return = 1: time out, =0: not yet!
   int IsTimeout( );

   // return connect state
   CONN_STATE Running( );
   int WriteData( char* DatBuf, int DatLen );
   int ReadData( char* DatBuf, int DatLen );
   int Close( );

   int GetHostIP( char* IPStr );
};


#endif