Method WillNeed

cpp/src/arrow/io/file.cc:321–323

bool ReadableFile::closed() const { return !impl_->is_open(); }

Status ReadableFile::WillNeed(const std::vector<ReadRange>& ranges) {
  return impl_->WillNeed(ranges);
}

Result<int64_t> ReadableFile::DoTell() const { return impl_->Tell(); }