Introduce extern for the common block references

[u/mrichter/AliRoot.git] / RAW / AliRawReaderDateV3.h

#ifndef ALIRAWREADERDATEV3_H
#define ALIRAWREADERDATEV3_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
///
/// This is a class for reading raw data from a date file or event (version 3).
///
///////////////////////////////////////////////////////////////////////////////

#include "AliRawReader.h"

struct eventHeaderStruct;


class AliRawReaderDateV3: public AliRawReader {
  public :
    AliRawReaderDateV3(void* event);
    AliRawReaderDateV3(const char* fileName, Int_t eventNumber = -1);
    virtual ~AliRawReaderDateV3();

    void             RequireHeader(Bool_t required = kTRUE)
      {fRequireHeader = required;};

    virtual UInt_t   GetType() const;
    virtual UInt_t   GetRunNumber() const;
    virtual const UInt_t* GetEventId() const;
    virtual const UInt_t* GetTriggerPattern() const;
    virtual const UInt_t* GetDetectorPattern() const;
    virtual const UInt_t* GetAttributes() const;
    virtual const UInt_t* GetSubEventAttributes() const;
    virtual UInt_t   GetLDCId() const;
    virtual UInt_t   GetGDCId() const;

    virtual Int_t    GetEquipmentSize() const;
    virtual Int_t    GetEquipmentType() const;
    virtual Int_t    GetEquipmentId() const;
    virtual const UInt_t* GetEquipmentAttributes() const;
    virtual Int_t    GetEquipmentElementSize() const;

    virtual Bool_t   ReadHeader();
    virtual Bool_t   ReadNextData(UChar_t*& data);

    virtual Bool_t   Reset();

    virtual Bool_t   NextEvent();
    virtual Bool_t   RewindEvents();

    virtual Int_t    CheckData() const;

  protected :
    virtual Bool_t   ReadNext(UChar_t* data, Int_t size);

    Bool_t           fRequireHeader; // if false, data without header is accepted

    FILE*            fFile;         // DATE file
    eventHeaderStruct* fEvent;      // raw data super event
    eventHeaderStruct* fSubEvent;   // raw data sub event

    UChar_t*         fPosition;     // current position in the raw data
    UChar_t*         fEnd;          // end position of the current data block

  private:
    AliRawReaderDateV3(const AliRawReaderDateV3& rawReader);
    AliRawReaderDateV3& operator = (const AliRawReaderDateV3& rawReader);

    ClassDef(AliRawReaderDateV3, 0) // class for reading raw digits from a date file (version 3)
};

#endif