PHPDaemon\Core\Pool::onShutdown PHP Method

    public function onShutdown($graceful = false)
    {
        if ($this->pool) {
            return $this->pool->onShutdown($graceful);
        }
        return true;
    }

 /**
  * Called when application instance is going to shutdown.
  * @return boolean Ready to shutdown?
  */
 public function onShutdown($graceful = false)
 {
     if ($this->pool) {
         return $this->pool->onShutdown($graceful);
     }
     return true;
 }