eeroel commented on code in PR #37918:
URL: https://github.com/apache/arrow/pull/37918#discussion_r1339675509
##########
cpp/src/arrow/dataset/file_base.cc:
##########
@@ -81,6 +81,18 @@ Result<std::shared_ptr<io::RandomAccessFile>>
FileSource::Open() const {
return custom_open_();
}
+Future<std::shared_ptr<io::RandomAccessFile>> FileSource::OpenAsync() const {
+ if (filesystem_) {
+ return filesystem_->OpenInputFileAsync(file_info_);
+ }
+
+ if (buffer_) {
+ return
Future<std::shared_ptr<io::RandomAccessFile>>::MakeFinished(std::make_shared<io::BufferReader>(buffer_));
+ }
+
+ return
Future<std::shared_ptr<io::RandomAccessFile>>::MakeFinished(custom_open_());
Review Comment:
Yes, wasn't sure how to deal with it. FileSource would need its own
`IOContext` instance to run it async?
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