/**
* Makes a request in another process.
*
* @param Request $request A Request instance
*
* @return Response A Response instance
*
* @throws \RuntimeException When processing returns exit code
*/
protected function doRequestInProcess($request)
{
$process = new PhpProcess($this->getScript($request));
$process->run();
if ($process->getExitCode() > 0) {
throw new \RuntimeException($process->getErrorOutput());
}
return unserialize($process->getOutput());
}
