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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <memory>
#include <string_view>
#include <tools/stream.hxx>
#include <o3tl/typed_flags_set.hxx>
class SvStream;
// Global files (channel numbers 256 to 511) are not
// implemented at the moment.
#define CHANNELS 256
enum class SbiStreamFlags
{
NONE = 0x0000,
Input = 0x0001,
Output = 0x0002,
Random = 0x0004,
Append = 0x0008,
Binary = 0x0010,
};
namespace o3tl
{
template<> struct typed_flags<SbiStreamFlags> : is_typed_flags<SbiStreamFlags, 0x1f> {};
}
class SbiStream
{
std::unique_ptr<SvStream> pStrm;
sal_uInt64 nExpandOnWriteTo; // during writing access expand the stream to this size
OString aLine;
sal_uInt64 nLine;
short nLen; // buffer length
SbiStreamFlags nMode;
ErrCode nError;
void MapError();
public:
SbiStream();
~SbiStream();
ErrCode const & Open( std::string_view, StreamMode, SbiStreamFlags, short );
ErrCode const & Close();
ErrCode Read(OString&, sal_uInt16 = 0, bool bForceReadingPerByte=false);
ErrCode const & Read( char& );
ErrCode Write( const OString& );
bool IsText() const { return !bool(nMode & SbiStreamFlags::Binary); }
bool IsRandom() const { return bool(nMode & SbiStreamFlags::Random); }
bool IsBinary() const { return bool(nMode & SbiStreamFlags::Binary); }
bool IsSeq() const { return !bool(nMode & SbiStreamFlags::Random); }
bool IsAppend() const { return bool(nMode & SbiStreamFlags::Append); }
short GetBlockLen() const { return nLen; }
SbiStreamFlags GetMode() const { return nMode; }
sal_uInt64 GetLine() const { return nLine; }
void SetExpandOnWriteTo( sal_uInt64 n ) { nExpandOnWriteTo = n; }
void ExpandFile();
SvStream* GetStrm() { return pStrm.get(); }
};
class SbiIoSystem
{
SbiStream* pChan[ CHANNELS ];
OString aPrompt;
OString aIn;
OUString aOut;
short nChan;
ErrCode nError;
void ReadCon(OString&);
void WriteCon(std::u16string_view);
public:
SbiIoSystem();
~SbiIoSystem() COVERITY_NOEXCEPT_FALSE;
ErrCode GetError();
void Shutdown();
void SetPrompt(const OString& r) { aPrompt = r; }
void SetChannel( short n ) { nChan = n; }
short GetChannel() const { return nChan;}
void ResetChannel() { nChan = 0; }
void Open( short, std::string_view, StreamMode, SbiStreamFlags, short );
void Close();
void Read(OString&);
char Read();
void Write(std::u16string_view);
// 0 == bad channel or no SvStream (nChannel=0..CHANNELS-1)
SbiStream* GetStream( short nChannel ) const;
void CloseAll(); // JSM
};
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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