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CheckedInputStream.h

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#ifndef CLASSLIB_CHECKED_INPUT_STREAM_H
# define CLASSLIB_CHECKED_INPUT_STREAM_H

//<<<<<< INCLUDES                                                       >>>>>>

# include "classlib/sysapi/system.h"
# include "classlib/iotools/FilterInputStream.h"

namespace lat {
//<<<<<< PUBLIC DEFINES                                                 >>>>>>
//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
//<<<<<< PUBLIC TYPES                                                   >>>>>>

class Checksum;

//<<<<<< PUBLIC VARIABLES                                               >>>>>>
//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
//<<<<<< CLASS DECLARATIONS                                             >>>>>>

class CheckedInputStream : public FilterInputStream
{
public:
    CheckedInputStream (InputStream *input, Checksum *validator);
    ~CheckedInputStream (void);

    using FilterInputStream::read;
    virtual IOSize      read (void *into, IOSize n);
    virtual IOSize      skip (IOSize n);
    virtual void        reset (void);
    virtual Checksum *  checksum (void) const;

private:
    Checksum            *m_checksum;    //< Checksum calculator
};

//<<<<<< INLINE PUBLIC FUNCTIONS                                        >>>>>>
//<<<<<< INLINE MEMBER FUNCTIONS                                        >>>>>>

} // namespace lat
#endif // CLASSLIB_CHECKED_INPUT_STREAM_H

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