source: source/ariba/overlay/modules/onehop/OneHop.h@ 2846

// [Licence]

// The Ariba-Underlay Copyright

//

// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)

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// Institute of Telematics

// UniversitÀt Karlsruhe (TH)

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// Germany

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// [Licence]



#ifndef _ONE_HOP_H

#define _ONE_HOP_H



#include <map>

#include "ariba/overlay/modules/OverlayInterface.h"

#include "ariba/overlay/modules/onehop/messages/OneHopMessage.h"

#include "ariba/overlay/modules/onehop/messages/NodeListingRequest.h"

#include "ariba/overlay/modules/onehop/messages/NodeListingReply.h"

#include "ariba/utility/logging/Logging.h"



using std::map;

using ariba::overlay::OverlayInterface;

using ariba::overlay::OneHopMessage;

using ariba::overlay::NodeListingRequest;

using ariba::overlay::NodeListingReply;



namespace ariba {

namespace overlay {



class OneHop : public OverlayInterface {

        use_logging_h( OneHop );

public:

        OneHop(

                BaseOverlay& _overlay,

                const NodeID& _nodeid,

                OverlayStructureEvents* _eventsReceiver

        );



        virtual ~OneHop();



protected:



        //

        // OverlayInterface.h

        //



        virtual void createOverlay();

        virtual void deleteOverlay();



        virtual void joinOverlay(const EndpointDescriptor& bootstrapEp = EndpointDescriptor::UNSPECIFIED);

        virtual void leaveOverlay();



        virtual const EndpointDescriptor& resolveNode( const NodeID& node );

        virtual void routeMessage( const NodeID& destnode, Message* msg );



        virtual NodeList getKnownNodes() const;



        //

        // see ServiceInterface.h and OverlayInterface.h

        //



        virtual void onLinkUp( const LinkID& link, const NodeID& local, const NodeID& remote );

        virtual void onLinkDown( const LinkID& link, const NodeID& local, const NodeID& remote );

        virtual bool receiveMessage( const Message* message, const LinkID& link, const NodeID& node );



private:



        /**

         * The other nodes in the overlay

         */

        typedef map<const NodeID,const LinkID> OverlayNodeMapping;

        OverlayNodeMapping overlayNodes;



        /**

         * The current state of the overlay

         */

        typedef enum _OneHopState {

                OneHopStateInvalid                = 0,

                OneHopStateJoinInitiated          = 1,

                OneHopStateJoinListingRequested   = 2,

                OneHopStateCompleted              = 3,

        } OneHopState;



        OneHopState state;



        uint16_t pendingLinks;

        LinkID bootstrapLink;



};



}} // namespace ariba, overlay



#endif // _ONE_HOP_H