G4FRClientServer.hh

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// $Id: G4FRClientServer.hh 66373 2012-12-18 09:41:34Z gcosmo $
//
// Satoshi TANAKA, Wed Jul  3 14:13:52 JST 1996

//=================//
#if defined (G4VIS_BUILD_DAWN_DRIVER) || defined (G4VIS_USE_DAWN)
//=================//


#if !defined G4FR_CLIENT_SERVER_H
#define G4FR_CLIENT_SERVER_H

#include<sys/types.h>
#include<sys/socket.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<netdb.h>
#include<sys/un.h>
#include<unistd.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include"G4ios.hh"


//----- constants
const  char     FR_ENV_SERVER_HOST_NAME[]       = "G4DAWN_HOST_NAME"  ;
const  char     FR_ENV_NAMED_PIPE_CONNECTION[]  = "G4DAWN_NAMED_PIPE" ;

        //-----------------------------------//
        //-----  class G4FRClientServer -----//
        //-----------------------------------//

class G4FRClientServer { 
 public:
        enum { SEND_BUFMAX = 1024 , RECV_BUFMAX = 1024 };
        enum { SUN_PATH_MAX = 16 };

 protected:     
        const char              TERMINATOR ;
        const char              END_OF_LINE;
        char                    SUN_PATH[ SUN_PATH_MAX ];
        int                     PORT_NUMBER ;
        int                     fSocketFd ;

        char            fReceivedMessage [ RECV_BUFMAX ];
        char            fSendingMessage  [ SEND_BUFMAX ];

 protected:

        void            Err( const char* message ) { perror(message) ;}
        void            SetSendingMessage( const char* message ) 
                                { strcpy( fSendingMessage, message );}
        void            Send() ; // send command in fSendingMessage

 public:        
                //----- Server
        int             AcceptUnix(){ return 0;}  // made unfunctioned  
        int             AcceptINET(){ return 0 ;}  // made unfunctioned  

                //----- Client
        int             ConnectUnix(); 
        int             ConnectINET(); 

                //----- Common to server and client

                //---------- (1)
        G4FRClientServer (      char terminator = '.'           ,
                                char end_line = '\n'              ) ;  
        virtual ~G4FRClientServer () {;}
        void            SetSunPath( const char* sun_path ) 
                        { strcpy     ( SUN_PATH, sun_path ); }
        void            SetPortNumber( int port_num ) 
                        { PORT_NUMBER = port_num ; }
        void            IncrementPortNumber( int incr = 1 ) 
                        { PORT_NUMBER += incr ; }
        const char*     GetSendingMessage() const
                                { return  fSendingMessage            ;}
        int             GetSendingMessageLength() const
                                { return  strlen(fSendingMessage)    ;}
        void            SetReceivedMessage( const char* message ) 
                                { strcpy( fReceivedMessage, message );}
        const char*     GetReceivedMessage() const
                                { return fReceivedMessage            ;}
        int             GetReceivedMessageLength() const    
                                { return strlen(fReceivedMessage)    ;}
        int             GetSofd() const { return fSocketFd ; }
        int             GetPortNumber () const { return PORT_NUMBER ; }
        void            ClearReceivedMessage () 
                        { memset(fReceivedMessage, '\0', RECV_BUFMAX) ; }

        int             IsTerminator(char ch ) { return ( ch == TERMINATOR ); }
        char            GetTerminator()  const  { return TERMINATOR ; }
        int             IsEndOfLine (char ch ) { return ( ch == END_OF_LINE ); }
        char            GetEndOfLine() const { return END_OF_LINE ; }
        void            DisConnect();
        void            Clear();
        void            WaitSendBack( const char* command_string ) ;

                //---------- (2) send and receive
        virtual void    Send     ( const char* message ) ; 
        virtual void    SendLine ( const char* message ) ; 
                                // Add END_OF_LINE if the message does not
                                // Terminate with it. And then send the message.
        virtual void    Receive() ;
        virtual void    ReceiveLine() ;

}; // G4FRClientServer


#endif
#endif //G4VIS_BUILD_DAWN_DRIVER