if (closed) return
      closed = true
      detachTimeout(timeout)
      state = STATE_READ_RESPONSE_HEADERS
    }
  }

  /**
   * An HTTP body with alternating chunk sizes and chunk bodies. It is the caller's responsibility
   * to buffer chunks; typically by using a buffered sink with this sink.
   */
  private inner class ChunkedSink : Sink {

// lineTooLong is generated as chunk header is bigger than 4KiB.
var errLineTooLong = errors.New("header line too long")

// malformed encoding is generated when chunk header is wrongly formed.
var errMalformedEncoding = errors.New("malformed chunked encoding")

// chunk is considered too big if its bigger than > 16MiB.
var errChunkTooBig = errors.New("chunk too big: choose chunk size <= 16MiB")

	}
	f.(*fileWriter).crc32 = fakeHash32{}
	chunk := make([]byte, chunkSize)
	for i := range chunk {
		chunk[i] = '.'
	}
	for i := 0; i < chunks; i++ {
		_, err := f.Write(chunk)
		if err != nil {
			t.Fatal("write chunk:", err)
		}
	}
	if frag := int(size % chunkSize); frag > 0 {
		_, err := f.Write(chunk[:frag])
		if err != nil {
			t.Fatal("write chunk:", err)
		}
	}
	end := []byte("END\n")

      for (int remaining = len; remaining >= 3; remaining -= 3) {
        int chunk = (bytes[i++] & 0xFF) << 16 | (bytes[i++] & 0xFF) << 8 | bytes[i++] & 0xFF;
        target.append(alphabet.encode(chunk >>> 18));
        target.append(alphabet.encode((chunk >>> 12) & 0x3F));
        target.append(alphabet.encode((chunk >>> 6) & 0x3F));
        target.append(alphabet.encode(chunk & 0x3F));
      }
      if (i < off + len) {

fs.s3a.fast.upload.buffer=disk # Use disk as the buffer for uploads
fs.s3a.fast.upload=true # Turn on fast upload mode
fs.s3a.max.total.tasks=2048 # Maximum number of parallel tasks
fs.s3a.multipart.size=512M # Size of each multipart chunk
fs.s3a.multipart.threshold=512M # Size before using multipart uploads
fs.s3a.socket.recv.buffer=65536 # Read socket buffer hint
fs.s3a.socket.send.buffer=65536 # Write socket buffer hint

##### Figure 1 - Secure Channel construction

```
plaintext   := chunk_0          ||       chunk_1          ||       chunk_2          ||       ...

pkg slices, func AppendSeq[$0 interface{ ~[]$1 }, $1 interface{}]($0, iter.Seq[$1]) $0 #61899
pkg slices, func Backward[$0 interface{ ~[]$1 }, $1 interface{}]($0) iter.Seq2[int, $1] #61899
pkg slices, func Chunk[$0 interface{ ~[]$1 }, $1 interface{}]($0, int) iter.Seq[$0] #53987
pkg slices, func Collect[$0 interface{}](iter.Seq[$0]) []$0 #61899
pkg slices, func Repeat[$0 interface{ ~[]$1 }, $1 interface{}]($0, int) $0 #65238

        bytesOut.writeHexadecimalUnsignedLong(chunkSize)
        bytesOut.writeUtf8("\r\n")
        bytesOut.write(body, chunkSize)
        bytesOut.writeUtf8("\r\n")
      }
      bytesOut.writeUtf8("0\r\n") // Last chunk. Trailers follow!
      this.body = bytesOut.toMockResponseBody()
    }

    /**
     * Sets the response body to the UTF-8 encoded bytes of [body],
     * chunked every [maxChunkSize] bytes.
     */

		chunkMax = chunkLimit / len(b) * len(b)
		if chunkMax == 0 {
			chunkMax = len(b)
		}
	}
	nb := bytealg.MakeNoZero(n)[:n:n]
	bp := copy(nb, b)
	for bp < n {
		chunk := min(bp, chunkMax)
		bp += copy(nb[bp:], nb[:chunk])
	}
	return nb
}

// ToUpper returns a copy of the byte slice s with all Unicode letters mapped to
// their upper case.
func ToUpper(s []byte) []byte {

   * {@link Splitter}.
   *
   * @since 10.0
   */
  public static final class MapSplitter {
    private static final String INVALID_ENTRY_MESSAGE = "Chunk [%s] is not a valid entry";
    private final Splitter outerSplitter;
    private final Splitter entrySplitter;

    private MapSplitter(Splitter outerSplitter, Splitter entrySplitter) {