public int get (int option_)
    {
        int rc = 0;
        if (option_ == ZMQ.ZMQ_MAX_SOCKETS)
            rc = max_sockets;
        else
        if (option_ == ZMQ.ZMQ_IO_THREADS)
            rc = io_thread_count;
        else {
            throw new IllegalArgumentException("option = " + option_);
        }
        return rc;
    }