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Posted to issues@arrow.apache.org by "Weston Pace (Jira)" <ji...@apache.org> on 2021/06/17 22:13:00 UTC

[jira] [Created] (ARROW-13109) [C++] Allow producers to require callbacks are scheduled on a new thread

Weston Pace created ARROW-13109:
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             Summary: [C++] Allow producers to require callbacks are scheduled on a new thread
                 Key: ARROW-13109
                 URL: https://issues.apache.org/jira/browse/ARROW-13109
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Weston Pace


Right now the BackgroundGenerator (async_generator.h) can deadlock if the user does not transfer onto a new thread task.  It's also typically a good idea to keep the background generator iterating the input as fast as possible.

 

If the background generator could create a promise that required callbacks to run on a new thread it would prevent callers from having to remember to do so.



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