/data/refman/pasoursint/CMSSW_5_3_10/src/EventFilter/Utilities/interface/BUFUInterface.h

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/*
 * BUFUInterface.h
 *
 *  Created on: Aug 16, 2011
 *      Author: aspataru
 */

#ifndef BUFUINTERFACE_H_
#define BUFUINTERFACE_H_

#include "BaseBU.h"
#include "BaseFU.h"
#include "xdaq/Application.h"

namespace evf {

class BUFUInterface {

public:
        ~BUFUInterface();

        static BUFUInterface* instance();
        static BUFUInterface* forceNewInstance();

        bool registerBU(BaseBU* bu, Logger log);
        bool registerFU(BaseFU* fu, Logger log);

        void allocate(const UIntVec_t& fuResourceIds,
                        xdaq::ApplicationDescriptor* fuAppDesc);
        void discard(UInt_t buResourceId);
        void take(xdaq::ApplicationDescriptor* fuAppDesc,
                        toolbox::mem::Reference* bufRef);

private:
        static BUFUInterface* instance_;

        BUFUInterface();

        /*
         * private functions
         */
        inline bool directConnection() const {
                return buConn_ && fuConn_;
        }

        /*
         * private fields
         */
        BaseBU* bu_;
        BaseFU* fu_;
        Logger buLogger_, fuLogger_;
        bool buConn_, fuConn_;

};
}

#endif /* BUFUINTERFACE_H_ */