source: source/ariba/utility/measurement/PathloadMeasurement.h@ 6966

// [License]
// The Ariba-Underlay Copyright
//
// 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