Weston Pace created ARROW-12207:
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Summary: [C++] Add automatic detection of "abandoned" futures
Key: ARROW-12207
URL: https://issues.apache.org/jira/browse/ARROW-12207
Project: Apache Arrow
Issue Type: Improvement
Components: C++
Reporter: Weston Pace
The future contract currently requires that the producer always mark a future
finished (not necessarily successfully). Either through bugs or a
misunderstanding of the contract it's possible a producer fails to do so. This
can lead to a memory leak or potentially a deadlock (if
arrow::internal::RunSerially is merged).
Apache Mesos avoids this by splitting the "Future" class into a producer facing
class (named Promise) and a consumer facing class. If all references to a
Promise are lost then the future is marked abandoned (e.g. invalid status).
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