/data/refman/pasoursint/CMSSW_5_3_1/src/EventFilter/ShmBuffer/interface/FUShmRawCell.h

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#ifndef FUSHMRAWCELL_H
#define FUSHMRAWCELL_H 1

#include <assert.h>

namespace evf {
  namespace evt {
    enum Type_t { NOP, STOPPER, EOL, DATA};
  }
  class FUShmRawCell
  {
  public:
    //
    // construction/destruction
    //
    FUShmRawCell(unsigned int payloadSize);
    ~FUShmRawCell();
    
    
    //
    // member functions
    //
    void           initialize(unsigned int index);
    
    unsigned int   index()                        const { return index_; }
    unsigned int   fuResourceId()                 const { return fuResourceId_; }
    unsigned int   buResourceId()                 const { return buResourceId_; }
    unsigned int   evtNumber()                    const { return evtNumber_; }

    unsigned int   payloadSize()                  const { return payloadSize_; }
    unsigned char* payloadAddr()                  const;
    
    unsigned int   nFed()                         const { return nFed_; }
    unsigned int   fedSize(unsigned int i)        const;
    unsigned char* fedAddr(unsigned int i)        const;
    
    unsigned int   nSuperFrag()                   const { return nSuperFrag_; }
    unsigned int   superFragSize(unsigned int i)  const;
    unsigned char* superFragAddr(unsigned int i)  const;
    
    unsigned int   eventSize()                    const;

    void           setFuResourceId(unsigned int id) { fuResourceId_=id; }
    void           setBuResourceId(unsigned int id) { buResourceId_=id; }
    void           setEvtNumber(unsigned int evt)   { evtNumber_   =evt; }

    void           clear();
    void           dump() const;
    
    unsigned int   readFed(unsigned int i,unsigned char*buffer) const;
    unsigned char* writeData(unsigned char*data,unsigned int dataSize);

    bool           markFed(unsigned int i,unsigned int size,unsigned char*addr);
    bool           markSuperFrag(unsigned int i,unsigned int size,unsigned char*addr);

    void           setLumiSection(unsigned int);
    void           setEventTypeData()
    {assert(eventType_ == evt::NOP);
      eventType_ = evt::DATA;
    }
    void           setEventTypeEol()
    {assert(eventType_ == evt::NOP);
      eventType_ = evt::EOL;
    }
    void           setEventTypeStopper()
    {assert(eventType_ == evt::NOP);
      eventType_ = evt::STOPPER;
    }
    unsigned int   getEventType()   const {return eventType_;}
    unsigned int   getLumiSection() const {return lumiSection_;}
    //
    // static member functions
    //
    static unsigned int size(unsigned int payloadSize);
    
    
  private:
    //
    // member data
    //
    unsigned int index_;
    unsigned int fuResourceId_;
    unsigned int buResourceId_;
    unsigned int evtNumber_;
    unsigned int payloadSize_;
    unsigned int nFed_;
    unsigned int nSuperFrag_;
    unsigned int lumiSection_;
    unsigned int eventType_;
    unsigned int fedSizeOffset_;
    unsigned int fedOffset_;
    unsigned int superFragSizeOffset_;
    unsigned int superFragOffset_;
    unsigned int payloadOffset_;
    unsigned int payloadPosition_;
    
  };

  
} // namespace evf


#endif