PHPDaemon\BoundSocket\Generic::close PHP Method

    public function close()
    {
        if (isset($this->ev)) {
            $this->ev = null;
        }
        if ($this->pid !== posix_getpid()) {
            // preventing closing pre-bound sockets in workers
            return;
        }
        if (is_resource($this->fd)) {
            socket_close($this->fd);
        }
    }