source: source/ariba/utility/measurement/PathloadMeasurement.h@ 4850

// [License]

// The Ariba-Underlay Copyright

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

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// [License]



#ifndef __PATHLOAD_MEASUREMENT_H

#define __PATHLOAD_MEASUREMENT_H



#include <unistd.h>

#include <signal.h>

#include <fcntl.h>

#include <sys/wait.h>

#include <boost/utility.hpp>

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

#include "ariba/utility/types/NodeID.h"

#include "ariba/utility/system/BlockingMethod.h"

#include "ariba/communication/EndpointDescriptor.h"

#include "ariba/overlay/BaseOverlay.h"



using ariba::utility::NodeID;

using ariba::utility::BlockingMethod;

using ariba::communication::EndpointDescriptor;

using ariba::overlay::BaseOverlay;



namespace ariba {

namespace utility {



//*************************************************



class PathloadMeasurementListener {

        friend class PathloadMeasurement;

protected:

        // mbps hols the MBit/s as floating point and -1 if the

        // measurement was triggered by two nodes on our local machines

        virtual void onMeasurement( NodeID node, double mbps ) = 0;

};



//*************************************************



class PathloadMeasurement : private boost::noncopyable, public BlockingMethod {

        use_logging_h( PathloadMeasurement );

private:

        volatile bool running;

        PathloadMeasurementListener* listener;



        double resultMbps;

        NodeID resultNode;

        BaseOverlay* baseoverlay;

        pid_t serverpid;



protected:

        PathloadMeasurement(BaseOverlay* _overlay);

        virtual ~PathloadMeasurement();



        virtual void dispatchFunction();

        virtual void blockingFunction();



public:

        static PathloadMeasurement& instance(BaseOverlay* _overlay = NULL) {

                static PathloadMeasurement the_inst( _overlay );

                return the_inst;

        }



        void measure( const NodeID& destnode,  PathloadMeasurementListener* _listener );

};



//*************************************************



}} // namespace ariba, utility



#endif // __PATHLOAD_MEASUREMENT_H