Method Finish

cpp/src/arrow/dataset/file_base.cc:357–362

}

Future<> FileWriter::Finish() {
  return FinishInternal().Then([this]() -> Future<> {
    ARROW_ASSIGN_OR_RAISE(bytes_written_, destination_->Tell());
    return destination_->CloseAsync();
  });
}

Result<int64_t> FileWriter::GetBytesWritten() const {
  if (bytes_written_.has_value()) {