public function __construct($id, $appId, $workerClass, $bootstrapFile)
{
$this->setId($id);
$this->setAppId($appId);
$this->setWorkerClass($workerClass);
$this->setBootstrapFile($bootstrapFile);
$this->startOn = time();
return $this->start(PTHREADS_INHERIT_NONE);
}