barrier/lib/io/COutputStreamFilter.h

39 lines
884 B
C++

#ifndef COUTPUTSTREAMFILTER_H
#define COUTPUTSTREAMFILTER_H
#include "IOutputStream.h"
//! A filtering output stream
/*!
This class wraps an output stream. Subclasses provide indirect access
to the stream, typically performing some filtering.
*/
class COutputStreamFilter : public IOutputStream {
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.
*/
COutputStreamFilter(IOutputStream* stream, bool adoptStream = true);
~COutputStreamFilter();
// IOutputStream overrides
virtual void close() = 0;
virtual UInt32 write(const void*, UInt32 count) = 0;
virtual void flush() = 0;
protected:
//! Get the stream
/*!
Returns the stream passed to the c'tor.
*/
IOutputStream* getStream() const;
private:
IOutputStream* m_stream;
bool m_adopted;
};
#endif