src/Daemon/Listener.php
public function sigHandler( int $signo ){
        $this->handleWorkerOutput('warn', sprintf("Signal %d Caught, asking the daemon to stop gracefully.", $signo));
        $this->stopGracefully = true;
    }
public function sigHandler( int $signo ){
        $this->handleWorkerOutput('warn', sprintf("Signal %d Caught, asking the daemon to stop gracefully.", $signo));
        $this->stopGracefully = true;
    }
Built in Signal Handler.
@param int $signo