/**
* Encode and send the message to the external process
* will call method $action on this instance in the child context
* @param string $action
* @param array $parameters
* @return mixed
*/
protected function callOnChild($action, array $parameters = array())
{
if ($this->isExternal()) {
throw new \RuntimeException("Calling ClientThread::CallOnChild from Child context. Did you mean ClientThread::CallOnParent?");
} else {
return $this->communicator->SendMessageSync($this->encode($action, $parameters));
}
}
