Method DoMarkFinished

cpp/src/arrow/util/future.h:654–662

  }

  void DoMarkFinished(Result<ValueType> res) {
    SetResult(std::move(res));

    if (ARROW_PREDICT_TRUE(GetResult()->ok())) {
      impl_->MarkFinished();
    } else {
      impl_->MarkFailed();
    }
  }

  void CheckValid() const {
#ifndef NDEBUG