Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_BASIC_SOURCE_INC_IOSYS_HXX
      21             : #define INCLUDED_BASIC_SOURCE_INC_IOSYS_HXX
      22             : 
      23             : #include <tools/stream.hxx>
      24             : #include <basic/sberrors.hxx>
      25             : 
      26             : class SvStream;
      27             : 
      28             : // Global files (channel numbers 256 to 511) are not
      29             : // implemented at the moment.
      30             : 
      31             : #define CHANNELS 256
      32             : 
      33             : #define SBSTRM_INPUT    0x0001
      34             : #define SBSTRM_OUTPUT   0x0002
      35             : #define SBSTRM_RANDOM   0x0004
      36             : #define SBSTRM_APPEND   0x0008
      37             : #define SBSTRM_BINARY   0x0010
      38             : 
      39             : class SbiStream
      40             : {
      41             :     SvStream* pStrm;
      42             :     sal_uIntPtr  nExpandOnWriteTo;  // during writing access expand the stream to this size
      43             :     OString aLine;
      44             :     sal_uIntPtr  nLine;
      45             :     short  nLen;                    // buffer length
      46             :     short  nMode;
      47             :     short  nChan;
      48             :     SbError nError;
      49             :     void   MapError();
      50             : 
      51             : public:
      52             :     SbiStream();
      53             :    ~SbiStream();
      54             :     SbError Open( short, const OString&, short, short, short );
      55             :     SbError Close();
      56             :     SbError Read(OString&, sal_uInt16 = 0, bool bForceReadingPerByte=false);
      57             :     SbError Read( char& );
      58             :     SbError Write( const OString&, sal_uInt16 = 0 );
      59             : 
      60           0 :     bool IsText() const     { return (nMode & SBSTRM_BINARY) == 0; }
      61           0 :     bool IsRandom() const   { return (nMode & SBSTRM_RANDOM) != 0; }
      62           0 :     bool IsBinary() const   { return (nMode & SBSTRM_BINARY) != 0; }
      63           0 :     bool IsSeq() const      { return (nMode & SBSTRM_RANDOM) == 0; }
      64           0 :     bool IsAppend() const   { return (nMode & SBSTRM_APPEND) != 0; }
      65           0 :     short GetBlockLen() const          { return nLen;           }
      66           0 :     short GetMode() const              { return nMode;          }
      67           0 :     sal_uIntPtr GetLine() const            { return nLine;          }
      68           0 :     void SetExpandOnWriteTo( sal_uIntPtr n ) { nExpandOnWriteTo = n;    }
      69             :     void ExpandFile();
      70           0 :     SvStream* GetStrm()                { return pStrm;          }
      71             : };
      72             : 
      73             : class SbiIoSystem
      74             : {
      75             :     SbiStream* pChan[ CHANNELS ];
      76             :     OString aPrompt;
      77             :     OString aIn;
      78             :     OUString aOut;
      79             :     short     nChan;
      80             :     SbError   nError;
      81             :     void      ReadCon(OString&);
      82             :     void      WriteCon(const OUString&);
      83             : public:
      84             :     SbiIoSystem();
      85             :    ~SbiIoSystem();
      86             :     SbError GetError();
      87             :     void  Shutdown();
      88           0 :     void  SetPrompt(const OString& r) { aPrompt = r; }
      89           0 :     void  SetChannel( short n  )       { nChan = n;   }
      90           0 :     short GetChannel() const           { return nChan;}
      91           0 :     void  ResetChannel()               { nChan = 0;   }
      92             :     void  Open( short, const OString&, short, short, short );
      93             :     void  Close();
      94             :     void  Read(OString&, short = 0);
      95             :     char  Read();
      96             :     void  Write(const OUString&, short = 0);
      97             :     // 0 == bad channel or no SvStream (nChannel=0..CHANNELS-1)
      98             :     SbiStream* GetStream( short nChannel ) const;
      99             :     void  CloseAll(); // JSM
     100             : };
     101             : 
     102             : #endif
     103             : 
     104             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */