Method stop

examples/response-sample.cpp:47–61

    void start() { app_->start(); }

    void stop() {
        running_ = false;
        blocked_ = true;
        app_->clear_all_handler();
        stop_offer();
        condition_.notify_one();
        if (std::this_thread::get_id() != offer_thread_.get_id()) {
            if (offer_thread_.joinable()) {
                offer_thread_.join();
            }
        } else {
            offer_thread_.detach();
        }
        app_->stop();
    }

    void offer() {
        app_->offer_service(SAMPLE_SERVICE_ID, SAMPLE_INSTANCE_ID);