mapleFU commented on code in PR #37918:
URL: https://github.com/apache/arrow/pull/37918#discussion_r1339703466
##########
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:
You can leave a comment here, and keep it here? I think at lease, open via
fileSystem could be help, and `custom_open_` won't be worse
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