source: source/ariba/overlay/modules/onehop/OneHop.h@ 3603

// [Licence]

// The Ariba-Underlay Copyright

//

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

//

// Institute of Telematics

// UniversitÀt Karlsruhe (TH)

// Zirkel 2, 76128 Karlsruhe

// Germany

//

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are

// met:

//

// 1. Redistributions of source code must retain the above copyright

// notice, this list of conditions and the following disclaimer.

// 2. Redistributions in binary form must reproduce the above copyright

// notice, this list of conditions and the following disclaimer in the

// documentation and/or other materials provided with the distribution.

//

// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND

// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR

// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

//

// The views and conclusions contained in the software and documentation

// are those of the authors and should not be interpreted as representing

// official policies, either expressed or implied, of the Institute of

// Telematics.

// [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 CommunicationListener.h or OverlayInterface.h

        //



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

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

        virtual void onMessage(const DataMessage& msg, const NodeID& remote, const LinkID& lnk = LinkID::UNSPECIFIED);



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