Method GetSize

cpp/src/arrow/io/file.cc:645–648

}

Result<int64_t> MemoryMappedFile::GetSize() {
  RETURN_NOT_OK(memory_map_->CheckClosed());
  return memory_map_->size();
}

Result<int64_t> MemoryMappedFile::Tell() const {
  RETURN_NOT_OK(memory_map_->CheckClosed());