39 lines
886 B
C++
39 lines
886 B
C++
#ifndef CINPUTSTREAMFILTER_H
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#define CINPUTSTREAMFILTER_H
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#include "IInputStream.h"
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//! A filtering input stream
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/*!
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This class wraps an input stream. Subclasses provide indirect access
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to the stream, typically performing some filtering.
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*/
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class CInputStreamFilter : public IInputStream {
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public:
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/*!
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Create a wrapper around \c stream. Iff \c adoptStream is true then
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this object takes ownership of the stream and will delete it in the
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d'tor.
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*/
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CInputStreamFilter(IInputStream* stream, bool adoptStream = true);
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~CInputStreamFilter();
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// IInputStream overrides
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virtual void close() = 0;
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virtual UInt32 read(void*, UInt32 n, double timeout) = 0;
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virtual UInt32 getSize() const = 0;
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protected:
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//! Get the stream
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/*!
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Returns the stream passed to the c'tor.
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*/
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IInputStream* getStream() const;
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private:
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IInputStream* m_stream;
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bool m_adopted;
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};
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#endif
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