Method ReadAt

python/pyarrow/src/arrow/python/io.cc:255–261

}

Result<int64_t> PyReadableFile::ReadAt(int64_t position, int64_t nbytes, void* out) {
  std::lock_guard<std::mutex> guard(file_->lock());
  return SafeCallIntoPython([=]() -> Result<int64_t> {
    RETURN_NOT_OK(Seek(position));
    return Read(nbytes, out);
  });
}

Result<std::shared_ptr<Buffer>> PyReadableFile::ReadAt(int64_t position, int64_t nbytes) {
  std::lock_guard<std::mutex> guard(file_->lock());