public function seek($offset, $whence = SEEK_SET)
{
if (fseek($this->stream, $offset, $whence) !== 0) {
throw new RuntimeException('Unable to seek stream position to ' . $offset);
}
} /**
* Encode a stream of bytes.
*
* @param \Protobuf\Stream $stream
* @param \Protobuf\Stream $value
*/
public function writeByteStream(Stream $stream, Stream $value)
{
$length = $value->getSize();
$value->seek(0);
$this->writeVarint($stream, $length);
$stream->writeStream($value, $length);
}