---

Handler.hpp

#if !defined(__HANDLER_HPP)
#define  __HANDLER_HPP

/*
  CoreLinux++ 
  Copyright (C) 1999,2000 CoreLinux Consortium
  
   The CoreLinux++ Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The CoreLinux++ Library Library is distributed in the hope that it will 
   be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  
*/   

#if   !defined(__COMMON_HPP)
#include <Common.hpp>
#endif

#if   !defined(__REQUEST_HPP)
#include <Request.hpp>
#endif

namespace   corelinux
{

   DECLARE_CLASS( Handler );

   class Handler : public Synchronized
   {
   public:

      //
      // Constructors and destructors
      //


                        Handler( void );


                        Handler( HandlerCref );


      virtual           ~Handler( void );

      //
      // Operator overloads
      //

               HandlerRef  operator=( HandlerCref );


               bool        operator==( HandlerCref ) const;

      //
      // Accessors
      //       

               HandlerPtr  operator++( void ) ;


               HandlerPtr  operator--( void ) ;

      //
      // Mutators
      //

               void  succeedHandler( HandlerPtr ) throw ( Assertion );

               void  precedeHandler( HandlerPtr ) throw ( Assertion );


               void  extractSelf( void );

      virtual  void  handleRequest( RequestPtr ) ;

   protected:

      virtual  bool  handlesType( RequestPtr ) = 0;

      virtual  void  handle( RequestPtr ) = 0;


               void  setSuccessor( HandlerPtr ) ;


               void  setPredecessor( HandlerPtr ) ;


               void  setSiblings( HandlerPtr, HandlerPtr );
   protected:


               HandlerPtr  theSuccessor;


               HandlerPtr  thePredecessor;

   private:

   };
}
#endif   // if !defined(__HANDLER_HPP)

/*
   Common rcs information do not modify
   $Author: frankc $
   $Revision: 1.1 $
   $Date: 2000/04/27 14:32:21 $
   $Locker:  $
*/

---

This is the CoreLinux++ reference manual
Provided by The CoreLinux Consortium