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INetworkAllocationVector.hpp

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 * WiFiMac                                                                    *
 * This file is part of openWNS (open Wireless Network Simulator)
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 * Free Software Foundation;
 *
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 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#ifndef WIFIMAC_CONVERGENCE_INETWORKALLOCATIONVECTOR_HPP
#define WIFIMAC_CONVERGENCE_INETWORKALLOCATIONVECTOR_HPP

#include <WNS/Subject.hpp>
#include <WNS/service/dll/Address.hpp>

namespace wifimac { namespace convergence {

    class INetworkAllocationVector
    {
    public:
        virtual ~INetworkAllocationVector(){};

        /*** @brief called by ChannelState, implemented by observers on NAV ***/
        virtual void onNAVBusy(const wns::service::dll::UnicastAddress setter) = 0;
        virtual void onNAVIdle() = 0;
    };

    class NAVNotification :
        virtual public wns::Subject<INetworkAllocationVector>
    {
    public:
        // @brief functor for INetworkAllocationVector::onChangedNAV calls
        struct OnChangedNAV
        {
            OnChangedNAV(const bool _newNAV, const wns::service::dll::UnicastAddress _setter):
                newNAV(_newNAV),
                setter(_setter)
                {}

            void operator()(INetworkAllocationVector* nav)
                {
                    // The functor calls the onChannelBusy/onChannelIdle implemented by the
                    // Observer
                    if (newNAV)
                        nav->onNAVBusy(setter);
                    else
                        nav->onNAVIdle();
                }
        private:
            bool newNAV;
            wns::service::dll::UnicastAddress setter;
        };

    };


}
}

#endif // not defined WIFIMAC_CONVERGENCE_INETWORKALLOCATIONVECTOR_HPP

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