//
// SlanTcp library related interface file.
//
#if !defined __SLANINTERFACE_H_
#define __SLANINTERFACE_H_

#define AVG_BUFF	50

typedef struct _CLIENT_INFO
{
	TCHAR	szClientIp[AVG_BUFF]; //IP Address		[Optional]
	TCHAR	szClientPort[10];		  //TCP port number	[Optional]
}
CLIENT_INFO, *PCLIENT_INFO;

typedef enum _OPMODE
{
	TCP_SRVR,
	TCP_CLNT,
	UDP
}
OPMODE;

typedef union _INPUTS
{
	struct _tcp
	{
		char ip[AVG_BUFF];
		int portno;
	}tcp;
	
	struct _udp
	{
		char localip[AVG_BUFF];
		int localport;
		char remoteip[AVG_BUFF];
		int remoteport;
	}udp;
}
INPUTS,*PINPUTS;

//
//Service Control Routines
//
__declspec(dllexport) int slan_init (void);
__declspec(dllexport) int slan_end (void);


//-----------------------------------------------------------------------------
//Port Control Routines
//-----------------------------------------------------------------------------

//Returns the Port Index
__declspec(dllexport) int slan_open (OPMODE eMode, INPUTS sParam);
__declspec(dllexport) int slan_close (int port_id);
__declspec(dllexport) int slan_acceptconnection (int port_index, PCLIENT_INFO pClientInfo);


//
//Input/Output Routines
//
__declspec(dllexport) int slan_read (int port_id, char *buf, int *pLen);
__declspec(dllexport) int slan_SetReadTimeouts (int port_id, DWORD timeouts);
__declspec(dllexport) int slan_write (int port_id, PCHAR buf, int len);
__declspec(dllexport) int slan_SetWriteTimeouts (int port_id, DWORD timeouts);

//
//Port Status Inquiry Routines
//
__declspec(dllexport) int slan_modemstatus (int port_id);
__declspec(dllexport) int slan_linestatus (int port_id);

//
//New Commands
//
__declspec(dllexport) int slan_resetserver(PTCHAR server_ip,PTCHAR password);
__declspec(dllexport) int slan_checkalive(PTCHAR serverip,DWORD Timeout);

//-----------------------------------------------------------------------------
//	Defines
//-----------------------------------------------------------------------------
#define RECVBUFF_SIZE		/*4096 2048 128*/ 1024		//[Socket receive() buff]
#define SENDBUFF_SIZE		/*4096 2048 128*/ 1024		//[Socket send() buff]


//-----------------------------------------------------------------------------
//	Return Values
//-----------------------------------------------------------------------------
#define SLAN_OK					   0		//OK 
#define SLAN_BADPORT			  -1		//No such port or port not opened  
#define SLAN_BADPARM			  -2		//Bad parameter 
#define SLAN_THREAD_ERR			  -3		//Create background thread fail. 
#define SLAN_MAXCONNECTIONSERR	  -4		//Exceeding the maimum connection count allowed. 
#define SLAN_SOCK_CREATE_FAIL	-200		//Connect to NPort fail. Maybe the NPortis power down or network cable is disconnected. 
#define SLAN_CONNECT_FAIL		-201		//Connect to NPort fail. Maybe the NPortis power down or network cable is disconnected. 
#define SLAN_SOCK_INIT_FAIL		-202		//Socket initialize error. 
#define SLAN_RECV_ERR			-203		//Communication with NPort error 
#define SLAN_SND_ERR			-204		//Communication with NPort error 
#define SLAN_RCVTIMEOUT_FAIL	-205		//Setting RECV TIMEOUT failed	
#define SLAN_SNDTIMEOUT_FAIL	-206		//Setting SEND TIMEOUT failed
#define SLAN_CANCEL				-207		//User cancelled the application
#define SLAN_HANDSHAKEFAIL		-208		//Handshake with server failed
#define SLAN_PING_FAIL			-209		//Ping Failed
#define SLAN_PREPMESSAGE_FAIL	-210		//PrepareMessage: Insifficient size. ERROR
#define SLAN_BIND_FAIL			-211		//Bind fail 
#define SLAN_LISTEN_FAIL		-212		//Listen fail 
#define SLAN_ACCEPT_FAIL		-213		//Accept fail 
#define SLAN_NAMERESLTN_FAIL	-214		//Name Resolution fail 
#define SLAN_SOCK_ERR			-215        // Sock Error occured 
#define SLAN_NOT_ALIVE			-216		// Slan Device not alive
#define SLAN_RESET_TIMEOUT      -217        // Slan Server Resetting Timed out
#define SLAN_INVALID_PASSWORD   -218		// Invalid Password
#define SLAN_TIMEOUT			-219		// Timed out 
#define SNAN_SOCK_CLOSE_FAIL	-220		//Socket Closing closesocket() failed
#endif	//__SLANINTERFACE_H_