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https://issues.apache.org/jira/browse/ARROW-11924?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17299051#comment-17299051
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Antoine Pitrou commented on ARROW-11924:
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Then it would probably be a non-reentrant {{AsyncGenerator}}. Is that ok?
> [C++] Provide streaming output from GetFileInfo
> -----------------------------------------------
>
> Key: ARROW-11924
> URL: https://issues.apache.org/jira/browse/ARROW-11924
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Affects Versions: 3.0.0
> Reporter: Ben Kietzman
> Assignee: Antoine Pitrou
> Priority: Major
>
> For situations where a monolithic call to GetFileInfo will be slow, it would
> be useful to immediately receive any results which *are* ready through an
> {{AsyncGenerator<std::vector<FileInfo>>}} or so. This is probably a
> prerequisite of ARROW-8163, where the goal is to begin scanning known
> fragments while other fragments are still being discovered.
> IIUC, one concrete example would be paging through a long output from S3's
> ListObjectsV2.
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