47 lines
798 B
C
47 lines
798 B
C
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/*
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* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef DATA_READER_H
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#define DATA_READER_H
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#include <SupportDefs.h>
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class DataReader {
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public:
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virtual ~DataReader();
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virtual status_t ReadData(off_t offset, void* buffer,
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size_t size) = 0;
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};
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class FDDataReader : public DataReader {
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public:
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FDDataReader(int fd);
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virtual status_t ReadData(off_t offset, void* buffer,
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size_t size);
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private:
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int fFD;
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};
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class BufferDataReader : public DataReader {
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public:
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BufferDataReader(const void* data, size_t size);
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virtual status_t ReadData(off_t offset, void* buffer,
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size_t size);
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private:
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const void* fData;
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size_t fSize;
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};
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#endif // DATA_READER_H
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