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// $Id: Rw11VirtStream.hpp 515 2013-05-04 17:28:59Z 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

// 2013-05-04   515   1.0    Initial version

// 2013-05-01   513   0.1    First draft

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

/*!

  \file

  \version $Id: Rw11VirtStream.hpp 515 2013-05-04 17:28:59Z mueller $

  \brief   Declaration of class Rw11VirtStream.

*/

#ifndef included_Retro_Rw11VirtStream

#define included_Retro_Rw11VirtStream 1

#include <stdio.h>

#include "Rw11Virt.hpp"

namespace Retro {

  class Rw11VirtStream : public Rw11Virt {

    public:

      explicit      Rw11VirtStream(Rw11Unit* punit);

                   ~Rw11VirtStream();

      bool          Open(const std::string& url, RerrMsg& emsg);

      int           Read(uint8_t* data, size_t count, RerrMsg& emsg);

      bool          Write(const uint8_t* data, size_t count, RerrMsg& emsg);

      bool          Flush(RerrMsg& emsg);

      int           Tell(RerrMsg& emsg);

      bool          Seek(int pos, RerrMsg& emsg);

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

      static Rw11VirtStream* New(const std::string& url, Rw11Unit* punit,

                                 RerrMsg& emsg);

    // statistics counter indices

      enum stats {

        kStatNVSRead = Rw11Virt::kDimStat,

        kStatNVSReadByt,

        kStatNVSWrite,

        kStatNVSWriteByt,

        kStatNVSFlush,

        kStatNVSTell,

        kStatNVSSeek,

        kDimStat

      };

    protected:

      bool          fIStream;               //<! is input (read only) stream

      bool          fOStream;               //<! is output (write only) stream

      FILE*         fFile;                  //<! file ptr

  };

} // end namespace Retro

//#include "Rw11VirtStream.ipp"

#endif