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https://issues.apache.org/jira/browse/ARROW-17975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antoine Pitrou resolved ARROW-17975.
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Fix Version/s: 11.0.0
Resolution: Fixed
Issue resolved by pull request 14594
[https://github.com/apache/arrow/pull/14594]
> [C++] Create after-fork facility
> --------------------------------
>
> Key: ARROW-17975
> URL: https://issues.apache.org/jira/browse/ARROW-17975
> Project: Apache Arrow
> Issue Type: Wish
> Components: C++
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Major
> Labels: pull-request-available
> Fix For: 11.0.0
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently, to ensure fork safety when dealing with system resources, we add
> hand-baked getpid() tests in relevant APIs.
> We could instead have a centralized after-fork facility such as:
> {code:c++}
> AfterForkToken RegisterAtFork(std::function<void()> after_fork);
> {code}
> The returned token would have to be kept alive for as long as the after-fork
> callbacks are to be registered.
> (a more elaborate overload with before-fork, after-fork-in-parent,
> after-fork-in-child callbacks could also be added if necessary)
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