office-gobmx/basic/source/inc/iosys.hxx

112 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef _SBIOSYS_HXX
#define _SBIOSYS_HXX
#include <tools/stream.hxx>
#include <basic/sberrors.hxx>
class SvStream;
// Global files (channel numbers 256 to 511) are not
// implemented at the moment.
#define CHANNELS 256
#define CONSOLE 0
#define SBSTRM_INPUT 0x0001
#define SBSTRM_OUTPUT 0x0002
#define SBSTRM_RANDOM 0x0004
#define SBSTRM_APPEND 0x0008
#define SBSTRM_BINARY 0x0010
class SbiStream {
SvStream* pStrm;
sal_uIntPtr nExpandOnWriteTo; // during writing access expand the stream to this size
ByteString aLine;
sal_uIntPtr nLine;
short nLen; // buffer length
short nMode;
short nChan;
SbError nError;
void MapError();
public:
SbiStream();
~SbiStream();
SbError Open( short, const ByteString&, short, short, short );
SbError Close();
SbError Read( ByteString&, sal_uInt16 = 0, bool bForceReadingPerByte=false );
SbError Read( char& );
SbError Write( const ByteString&, sal_uInt16 = 0 );
bool IsText() const { return (nMode & SBSTRM_BINARY) == 0; }
bool IsRandom() const { return (nMode & SBSTRM_RANDOM) != 0; }
bool IsBinary() const { return (nMode & SBSTRM_BINARY) != 0; }
bool IsSeq() const { return (nMode & SBSTRM_RANDOM) == 0; }
bool IsAppend() const { return (nMode & SBSTRM_APPEND) != 0; }
short GetBlockLen() const { return nLen; }
short GetMode() const { return nMode; }
sal_uIntPtr GetLine() const { return nLine; }
void SetExpandOnWriteTo( sal_uIntPtr n ) { nExpandOnWriteTo = n; }
void ExpandFile();
SvStream* GetStrm() { return pStrm; }
};
class SbiIoSystem {
SbiStream* pChan[ CHANNELS ];
ByteString aPrompt;
ByteString aIn, aOut;
short nChan;
SbError nError;
void ReadCon( ByteString& );
void WriteCon( const ByteString& );
public:
SbiIoSystem();
~SbiIoSystem();
SbError GetError();
void Shutdown();
void SetPrompt( const ByteString& r ) { aPrompt = r; }
void SetChannel( short n ) { nChan = n; }
short GetChannel() const { return nChan;}
void ResetChannel() { nChan = 0; }
void Open( short, const ByteString&, short, short, short );
void Close();
void Read( ByteString&, short = 0 );
char Read();
void Write( const ByteString&, short = 0 );
short NextChannel();
// 0 == bad channel or no SvStream (nChannel=0..CHANNELS-1)
SbiStream* GetStream( short nChannel ) const;
void CloseAll(); // JSM
};
#endif
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