route.H

/*
 * This file is part of the "Archon" framework.
 * (http://files3d.sourceforge.net)
 *
 * Copyright © 2002 by Kristian Spangsege and Brian Kristiansen.
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation under the terms of the GNU General Public License is
 * hereby granted. No representations are made about the suitability of
 * this software for any purpose. It is provided "as is" without express
 * or implied warranty. See the GNU General Public License
 * (http://www.gnu.org/copyleft/gpl.html) for more details.
 *
 * The characters in this file are ISO8859-1 encoded.
 *
 * The documentation in this file is in "Doxygen" style
 * (http://www.doxygen.org).
 */
#ifndef ARCHON_X3D_SAI_ROUTE_H
#define ARCHON_X3D_SAI_ROUTE_H

#include <archon/x3d/server/event.H>

#include <archon/x3d/sai/session.H>

namespace Archon
{
  namespace X3D
  {
    namespace SAI
    {
      using namespace Utilities;
  
      struct ExternalRouteHead: virtual RefObjectBase
      {
        const BackRef<Session> session;
        const unsigned long cookie;

      protected:
        ExternalRouteHead(Ref<Session> session, unsigned long cookie):
          session(session), cookie(cookie) {}

        unsigned long getHeadCountNoLock() { return getUseCountNoLock(); }
      };

      struct ExternalRoute: RouteTail, ExternalRouteHead
      {
        struct AccessException: Exception
        {
          AccessException(string l): Exception(l) {}
        };

        void cascadeEvent(const Event *e) const;

        static void add(Ref<NodeBase> sourceNode, const FieldBase *sourceField,
                        Ref<Session> session, unsigned long cookie)
          throw(AccessException);

        static bool del(Ref<NodeBase> sourceNode, const FieldBase *sourceField,
                        Ref<Session> session, unsigned long cookie);

        void refDispose(Mutex::Lock &l);

        ~ExternalRoute();

      private:
        ExternalRoute(Ref<NodeBase> sourceNode, const FieldBase *sourceField,
                      Ref<Session> session, unsigned long cookie);

        bool match(const RouteTail *) const;
      };
    }
  }
}

#endif // ARCHON_X3D_SAI_ROUTE_H

---