Class ExecutionProgress

nan.h:2182–2199

  }

  class ExecutionProgress {
    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);
    }

   private:
    explicit ExecutionProgress(AsyncBareProgressWorker *that) : that_(that) {}
    NAN_DISALLOW_ASSIGN_COPY_MOVE(ExecutionProgress)
    AsyncBareProgressWorker* const that_;
  };

  virtual void Execute(const ExecutionProgress& progress) = 0;
  virtual void HandleProgressCallback(const T *data, size_t size) = 0;