buf        []byte          // Holds bit-rot verified data
}

func (b *wholeBitrotReader) ReadAt(buf []byte, offset int64) (n int, err error) {
	if b.buf == nil {
		b.buf = make([]byte, b.tillOffset-offset)
		if _, err := b.disk.ReadFile(context.TODO(), b.volume, b.filePath, offset, b.buf, b.verifier); err != nil {
			return 0, err
		}
	}
	if len(b.buf) < len(buf) {
		return 0, errLessData
	}

			// and that the data is correct.

			w.Reset()
			buf := NewWriterSize(w, bs)
			context := fmt.Sprintf("nwrite=%d bufsize=%d", nwrite, bs)
			n, e1 := buf.Write(data[0:nwrite])
			if e1 != nil || n != nwrite {
				t.Errorf("%s: buf.Write %d = %d, %v", context, nwrite, n, e1)
				continue
			}
			if e := buf.Flush(); e != nil {
				t.Errorf("%s: buf.Flush = %v", context, e)
			}

			written := w.Bytes()

    InputStream in = url.openStream();
    try {
      OutputStream out = new FileOutputStream(file);
      try {
        byte[] buf = new byte[4096];
        for (int read = in.read(buf); read != -1; read = in.read(buf)) {
          out.write(buf, 0, read);
        }
      } finally {
        out.close();
      }
    } finally {
      in.close();
    }
  }

	_, err = io.ReadFull(b.rc, b.hashBytes)
	if err != nil {
		return 0, err
	}
	_, err = io.ReadFull(b.rc, buf)
	if err != nil {
		return 0, err
	}
	b.h.Write(buf)
	if !bytes.Equal(b.h.Sum(nil), b.hashBytes) {
		return 0, errFileCorrupt
	}
	b.currOffset += int64(len(buf))
	return len(buf), nil
}

// Returns streaming bitrot reader implementation.

	return d
}

type writerWrapper struct {
	ch  chan<- []byte
	ctx context.Context
}

func (w *writerWrapper) Write(p []byte) (n int, err error) {
	buf := GetByteBufferCap(len(p))
	buf = buf[:len(p)]
	copy(buf, p)
	select {
	case w.ch <- buf:
		return len(p), nil
	case <-w.ctx.Done():
		return 0, context.Cause(w.ctx)
	}
}

	return func(b *testing.B, n int) {
		buf := bmbuf[0:n]
		o := copy(buf, uchars)
		for o < len(buf) {
			o += copy(buf[o:], uchars)
		}

		// Make space for the needle rune at the end of buf.
		m := utf8.RuneLen(needle)
		for o := m; o > 0; {
			_, sz := utf8.DecodeLastRune(buf)
			copy(buf[len(buf)-sz:], "\x00\x00\x00\x00")
			buf = buf[:len(buf)-sz]
			o -= sz
		}

        int lcm = lcm(outlen, data.length);
        byte[] buf = new byte[outlen];
        int carry = 0;
        for (int i = lcm - 1; i >= 0; i--) {
            carry = carry_add(data, buf, carry, i);
        }

        if (carry != 0) {
            for (int i = outlen - 1; i >= 0; i--) {
                carry += buf[i] & 0xff;
                buf[i] = (byte) (carry & 0xff);
                carry >>>= 8;

					if err != nil {
						return err
					}

					b, err := io.ReadAll(r)
					if err != nil {
						return err
					}
					buf := bytes.NewBuffer(nil)
					if _, err = msgp.CopyToJSON(buf, bytes.NewReader(b)); err != nil {
						return err
					}

					dec := json.NewDecoder(buf)
					// Use number to preserve integers.
					dec.UseNumber()
					var htr map[string]any
					if err = dec.Decode(&htr); err != nil {

	if err != nil {
		return 0, 0, 0, buf, err
	}
	if hdrVer > xlHeaderVersion {
		return 0, 0, 0, buf, fmt.Errorf("decodeXLHeaders: Unknown xl header version %d", hdrVer)
	}
	if metaVer > xlMetaVersion {
		return 0, 0, 0, buf, fmt.Errorf("decodeXLHeaders: Unknown xl meta version %d", metaVer)
	}
	versions, buf, err = msgp.ReadIntBytes(buf)
	if err != nil {
		return 0, 0, 0, buf, err
	}

                buf.start = off;
                buf.reset();
                msg.encode_header(buf);
                buf.enc_ndr_long(msg.alloc_hint);
                buf.enc_ndr_short(0); /* context id */
                buf.enc_ndr_short(msg.getOpnum());
            }

            if ((msg.flags & DCERPC_LAST_FRAG) == DCERPC_LAST_FRAG) {