Method Signal

nan.h:2185–2189

    friend class AsyncBareProgressWorker;
   public:
    void Signal() const {
      uv_mutex_lock(&that_->async_lock);
      uv_async_send(&that_->async);
      uv_mutex_unlock(&that_->async_lock);
    }

    void Send(const T* data, size_t count) const {
      that_->SendProgress_(data, count);