/**
* Reads the content of this stream and write it to another stream.
*
* @param instance $stream The destination stream to write to
* @return integer The number of copied bytes
*/
public function pipe($stream)
{
$offset = $stream->tell();
$result = stream_copy_to_stream($this->resource(), $stream->resource());
if ($stream->isSeekable()) {
$stream->seek($offset);
}
return $result;
}