ByteGrabber.hxx

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#ifndef INCLUDED_PACKAGE_INC_BYTEGRABBER_HXX
#define INCLUDED_PACKAGE_INC_BYTEGRABBER_HXX
 
#include <com/sun/star/uno/Sequence.h>
#include <com/sun/star/uno/Reference.h>
 
#include <mutex>
 
namespace com::sun::star {
    namespace io { class XSeekable; class XInputStream; }
}
class ByteGrabber final
{
    std::mutex m_aMutex;
 
    css::uno::Reference < css::io::XInputStream > xStream;
    css::uno::Reference < css::io::XSeekable > xSeek;
    css::uno::Sequence < sal_Int8 > aSequence;
    const sal_Int8 *pSequence;
 
public:
    ByteGrabber (css::uno::Reference < css::io::XInputStream > const & xIstream);
    ~ByteGrabber();
 
    void setInputStream (const css::uno::Reference < css::io::XInputStream >& xNewStream);
    // XInputStream
    sal_Int32 readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead );
    // XSeekable
    void seek( sal_Int64 location );
    sal_Int64 getPosition(  );
    sal_Int64 getLength(  );
 
    sal_uInt16 ReadUInt16();
    sal_uInt32 ReadUInt32();
    sal_Int16 ReadInt16()
    {
        return static_cast<sal_Int16>(ReadUInt16());
    }
    sal_Int32 ReadInt32()
    {
        return static_cast<sal_Int32>(ReadUInt32());
    }
};
 
#endif
 
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