barrier/lib/io/CInputStreamFilter.h
2002-08-02 19:57:46 +00:00

53 lines
1.4 KiB
C++

/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package 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 more details.
*/
#ifndef CINPUTSTREAMFILTER_H
#define CINPUTSTREAMFILTER_H
#include "IInputStream.h"
//! A filtering input stream
/*!
This class wraps an input stream. Subclasses provide indirect access
to the stream, typically performing some filtering.
*/
class CInputStreamFilter : public IInputStream {
public:
/*!
Create a wrapper around \c stream. Iff \c adoptStream is true then
this object takes ownership of the stream and will delete it in the
d'tor.
*/
CInputStreamFilter(IInputStream* stream, bool adoptStream = true);
~CInputStreamFilter();
// IInputStream overrides
virtual void close() = 0;
virtual UInt32 read(void*, UInt32 n, double timeout) = 0;
virtual UInt32 getSize() const = 0;
protected:
//! Get the stream
/*!
Returns the stream passed to the c'tor.
*/
IInputStream* getStream() const;
private:
IInputStream* m_stream;
bool m_adopted;
};
#endif