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// $Id: Rw11VirtTape.hpp 686 2015-06-04 21:08:08Z mueller $
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//
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// Copyright 2015- by Walter F.J. Mueller <W.F.J.Mueller@gsi.de>
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//
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// This program is free software; you may redistribute and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 2, or at your option any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY, without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for complete details.
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//
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// Revision History:
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// Date Rev Version Comment
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// 2015-06-04 686 1.0 Initial version
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// 2015-05-17 683 0.1 First draft
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// ---------------------------------------------------------------------------
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/*!
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\file
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\version $Id: Rw11VirtTape.hpp 686 2015-06-04 21:08:08Z mueller $
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\brief Declaration of class Rw11VirtTape.
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*/
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#ifndef included_Retro_Rw11VirtTape
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#define included_Retro_Rw11VirtTape 1
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#include "Rw11Virt.hpp"
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namespace Retro {
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class Rw11VirtTape : public Rw11Virt {
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public:
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explicit Rw11VirtTape(Rw11Unit* punit);
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~Rw11VirtTape();
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void SetWProt(bool wprot);
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void SetCapacity(size_t nbyte);
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bool WProt() const;
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size_t Capacity() const;
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virtual bool ReadRecord(size_t nbyte, uint8_t* data, size_t& ndone,
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int& opcode, RerrMsg& emsg) = 0;
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virtual bool WriteRecord(size_t nbyte, const uint8_t* data,
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int& opcode, RerrMsg& emsg) = 0;
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virtual bool WriteEof(RerrMsg& emsg) = 0;
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virtual bool SpaceForw(size_t nrec, size_t& ndone,
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int& opcode, RerrMsg& emsg) = 0;
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virtual bool SpaceBack(size_t nrec, size_t& ndone,
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int& opcode, RerrMsg& emsg) = 0;
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virtual bool Rewind(int& opcode, RerrMsg& emsg) = 0;
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void SetPosFile(int posfile);
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void SetPosRecord(int posrec);
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bool Bot() const;
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bool Eot() const;
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bool Eom() const;
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int PosFile() const;
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int PosRecord() const;
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virtual void Dump(std::ostream& os, int ind=0, const char* text=0) const;
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static Rw11VirtTape* New(const std::string& url, Rw11Unit* punit,
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RerrMsg& emsg);
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// statistics counter indices
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enum stats {
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kStatNVTReadRec = Rw11Virt::kDimStat,
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kStatNVTReadByt,
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kStatNVTReadEof,
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kStatNVTReadEom,
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kStatNVTReadPErr,
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kStatNVTReadLErr,
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kStatNVTWriteRec,
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kStatNVTWriteByt,
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kStatNVTWriteEof,
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kStatNVTSpaForw,
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kStatNVTSpaBack,
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kStatNVTRewind,
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kDimStat
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};
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// operation code
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enum OpCode {
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kOpCodeOK = 0, //<! operation OK
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kOpCodeBot, //<! ended at BOT
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kOpCodeEof, //<! ended at EOF
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kOpCodeEom, //<! ended at EOM
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kOpCodeRecLenErr, //<! record length error
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kOpCodeBadParity, //<! record with parity error
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kOpCodeBadFormat //<! file format error
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};
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protected:
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bool fWProt; //<! write protected
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size_t fCapacity; //<! capacity in byte (0=unlimited)
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bool fBot; //<! tape at bot
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bool fEot; //<! tape beyond eot
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bool fEom; //<! tape beyond medium
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int fPosFile; //<! tape pos: #files (-1=unknown)
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int fPosRecord; //<! tape pos: #record (-1=unknown)
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};
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} // end namespace Retro
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#include "Rw11VirtTape.ipp"
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#endif
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