//  File name:          $Workfile: proc_bas.h $
//  Last modified:      $Modtime: 9/20/00 10:14a $
//  Last modified by:   $Author: Bill $
//  
//  VCS archive path:   $Archive: /Hank/DMM/FirmWare/Level3/ObDatMgr/proc_bas.h $
//  VCS revision:       $Revision: 5 $ 

//  Interface class CPQDIF_StreamProcessor

class CPQDIF_StreamIO;

class CPQDIF_StreamProcessor
    {
    public:
        CPQDIF_StreamProcessor();
        virtual ~CPQDIF_StreamProcessor();

    // Attributes
    public:
        virtual long GetChecksum( void ) { return m_checksum; }

    // Operations
    public:
        virtual bool ConnectStream( CPQDIF_StreamIO * pstrm );
        virtual bool StreamEncode( void ) = 0;
        virtual bool StreamDecode( void ) = 0;
        virtual void ResetChecksum( void );

    // Implementation
    protected:
    
    //  Member data
    protected:
	    CPQDIF_StreamIO *   m_pstrm;
        long                m_checksum;
    };