source: source/ariba/communication/networkinfo/NetworkChangeDetection.h@ 6924

// [License]

// 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.

// [License]



#ifndef __NETWORK_CHANGE_DETECTION_H

#define __NETWORK_CHANGE_DETECTION_H



#include <cerrno>

#include <csignal>

#include <vector>

#include <algorithm>

#include <string>

#include <net/if.h>

#include <arpa/inet.h>

#include <linux/types.h>

#include <linux/netlink.h>

#include <linux/rtnetlink.h>

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/ioctl.h>

#include <boost/thread/mutex.hpp>

#include <boost/thread/thread.hpp>

#include <boost/utility.hpp>

#include <boost/bind.hpp>

#include "ariba/communication/networkinfo/NetworkChangeInterface.h"

#include "ariba/communication/networkinfo/NetworkInformation.h"

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

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



using std::string;

using std::vector;

using std::find;

using ariba::utility::SystemQueue;

using ariba::utility::SystemEvent;

using ariba::utility::SystemEventType;

using ariba::utility::SystemEventListener;

using ariba::communication::NetworkInformation;



namespace ariba {

namespace communication {



class NetworkChangeDetection : public SystemEventListener {

        use_logging_h(NetworkChangeDetection);

public:

        NetworkChangeDetection();

        virtual ~NetworkChangeDetection();



        void registerNotification( NetworkChangeInterface* callback );

        void unregisterNotification( NetworkChangeInterface* callback );



protected:

        void handleSystemEvent( const SystemEvent& event );



private:

        typedef vector<NetworkChangeInterface*> RegistrationList;

        RegistrationList registrations;



        void startMonitoring();

        void stopMonitoring();



        volatile bool running;

        boost::thread* monitoringThread;

        static void monitoringThreadFunc( NetworkChangeDetection* obj );



        int routingSocket;

        NetworkInformation networkInformation;



        NetworkChangeInterface::NetworkChangeInfo extractInterfaceEvent( struct nlmsghdr* header );

        NetworkChangeInterface::NetworkChangeInfo extractAddressEvent( struct nlmsghdr* header );

};



}} // namespace ariba, communication



#endif // __NETWORK_CHANGE_DETECTION_H