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// $Id: Rw11VirtDisk.hpp 509 2013-04-21 20:46:20Z mueller $

//

// Copyright 2013- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>

//

// This program is free software; you may redistribute and/or modify it under

// the terms of the GNU General Public License as published by the Free

// Software Foundation, either version 2, or at your option any later version.

//

// This program is distributed in the hope that it will be useful, but

// WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY

// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for complete details.

// 

// Revision History: 

// Date         Rev Version  Comment

// 2013-03-03   494   1.0    Initial version

// 2013-02-13   488   0.1    First draft

// ---------------------------------------------------------------------------

/*!

  \file

  \version $Id: Rw11VirtDisk.hpp 509 2013-04-21 20:46:20Z mueller $

  \brief   Declaration of class Rw11VirtDisk.

*/

#ifndef included_Retro_Rw11VirtDisk

#define included_Retro_Rw11VirtDisk 1

#include "Rw11Virt.hpp"

namespace Retro {

  class Rw11VirtDisk : public Rw11Virt {

    public:

      explicit      Rw11VirtDisk(Rw11Unit* punit);

                   ~Rw11VirtDisk();

      void          Setup(size_t blksize, size_t nblock);

      size_t        BlockSize() const;

      size_t        NBlock() const;

      virtual bool  Read(size_t lba, size_t nblk, uint8_t* data,

                         RerrMsg& emsg) = 0;

      virtual bool  Write(size_t lba, size_t nblk, const uint8_t* data,

                          RerrMsg& emsg) = 0;

      virtual void  Dump(std::ostream& os, int ind=0, const char* text=0) const;

      static Rw11VirtDisk* New(const std::string& url, Rw11Unit* punit,

                               RerrMsg& emsg);

    // statistics counter indices

      enum stats {

        kStatNVDRead = Rw11Virt::kDimStat,

        kStatNVDReadBlk,

        kStatNVDWrite,

        kStatNVDWriteBlk,

        kDimStat

      };

    protected:

      size_t        fBlkSize;               //<! block size in byte

      size_t        fNBlock;                //<! disk size in blocks

  };

} // end namespace Retro

#include "Rw11VirtDisk.ipp"

#endif