public function sendContent()
	{
		if (! $this->isSuccessful()) {
			return parent::sendContent();
		}
		
		if (0 === $this->maxlen) {
			return $this;
		}
		
		$out = fopen('php://output', 'wb');
		$in = $this->resource->getStream();
		
		stream_copy_to_stream($in, $out, $this->maxlen, $this->offset);
		
		fclose($out);
		fclose($in);
		
		return $this;
	}