Class AsyncBareProgressQueueWorker

nan.h:2271–2306

abstract */

template<class T>
/* abstract */
class AsyncBareProgressQueueWorker : public AsyncBareProgressWorkerBase {
 public:
  explicit AsyncBareProgressQueueWorker(
      Callback *callback_,
      const char* resource_name = "nan:AsyncBareProgressQueueWorker")
      : AsyncBareProgressWorkerBase(callback_, resource_name) {
  }

  virtual ~AsyncBareProgressQueueWorker() {
  }

  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;

 private:
  void Execute() /*final override*/ {
    ExecutionProgress progress(this);
    Execute(progress);
  }

  virtual void SendProgress_(const T *data, size_t count) = 0;
};

template<class T>
/* abstract */