Class ExecutionProgress

nan.h:2282–2294

  }

  class ExecutionProgress {
    friend class AsyncBareProgressQueueWorker;
   public:
    void Send(const T* data, size_t count) const {
      that_->SendProgress_(data, count);
    }

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

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