InputStreamReader.h

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#ifndef __DCL_INPUT_STREAM_READER_H__
#define __DCL_INPUT_STREAM_READER_H__   20110130
 
#ifndef __DCL_READER_H__
#include <dcl/Reader.h>
#endif
#ifndef __DCL_INPUT_STREAM_H__
#include <dcl/InputStream.h>
#endif
 
__DCL_BEGIN_NAMESPACE

 
class CharsetDecoder;
 
class DCLCAPI InputStreamReader : public Reader
{
    DECLARE_CLASSINFO(InputStreamReader)
protected:
    InputStreamReader();
 
public:
    virtual String toString() const;

    InputStreamReader(
        InputStream&     __noclose__ _input,
        CharsetDecoder&       _decoder
        );

    InputStreamReader(
        InputStream*     __destroy__ _pInput,         // new InputStream
        CharsetDecoder*       __destroy__ _pDecoder = NULL // new CharsetDecoder
        ) __DCL_THROWS1(IOException*);

    virtual ~InputStreamReader();

    virtual void close()
            __DCL_THROWS1(IOException*);

    virtual size_t read(wchar_t* _buf, size_t _n)
            __DCL_THROWS1(IOException*);
 
protected:
    InputStream*     __input;
    CharsetDecoder*       __decoder;
    bool                __closeDestroy;
 
private:
#define __EXTRA_MAX 16  // cf. MB_LEN_MAX
    byte_t                __extra[__EXTRA_MAX];
    size_t              __extraBytes;
};
 
__DCL_END_NAMESPACE
 
#endif      // __DCL_INPUT_STREAM_READER_H__