EV_READ的回调方法问题

        // Non blocking.
        stream_set_blocking($this->_mainSocket, 0);

    public function acceptConnection($socket)
    {
        // Accept a connection on server socket.
        $new_socket = @stream_socket_accept($socket, 0, $remote_address);
        // Thundering herd.
        if (!$new_socket) {
            return;
        }