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BestChannel.hpp

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#ifndef WNS_SCHEDULER_STRATEGY_DSASTRATEGY_BESTCHANNEL_HPP
#define WNS_SCHEDULER_STRATEGY_DSASTRATEGY_BESTCHANNEL_HPP

#include <WNS/scheduler/strategy/dsastrategy/DSAStrategy.hpp>
#include <vector>

namespace wns { namespace scheduler { namespace strategy { namespace dsastrategy {

    // Best Channel strategy
    class BestChannel :
        public DSAStrategy {
    public:
        BestChannel(const wns::pyconfig::View& config);

        ~BestChannel();

        virtual void initialize(SchedulerStatePtr schedulerState,
                    SchedulingMapPtr schedulingMap);

        virtual DSAResult
        getSubChannelWithDSA(RequestForResource& request,
                     SchedulerStatePtr schedulerState,
                     SchedulingMapPtr schedulingMap);

        bool requiresCQI() const { return true; };

    private:
        ChannelQualitiesOfAllUsersPtr channelQualitiesOfAllUsers;
        typedef std::vector<bool> UsedSubChannels;
        class UserInfo
        {
        public:
            UserInfo(int numOfSubChannels)
                : usedSubChannels(numOfSubChannels)
            {
                lastUsedSubChannel=DSAsubChannelNotFound;
                lastUsedTimeSlot=0;
                toggleOffset=+1;
            };
            ~UserInfo() {};
            int lastUsedSubChannel;
            int lastUsedTimeSlot;
            int toggleOffset;
            ChannelQualitiesOnAllSubBandsPtr channelQualitiesOnAllSubBands;
            UsedSubChannels usedSubChannels;
        };
        typedef std::map<UserID, UserInfo> UserInfoMap;
        UserInfoMap userInfoMap;
    };


}}}} // namespace wns::scheduler::strategy::dsastrategy
#endif // WNS_SCHEDULER_DSASTRATEGY_BESTCHANNEL_HPP

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