[ARROW-5775] [C++] StructArray : cached boxed fields not thread-safe

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.14.1, 0.15.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22197
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 28/Jun/19 06:51
• Updated: 11/Jan/23 07:42
• Resolved: 05/Jul/19 07:09

Description

The lazy initialization isn't thread-safe (it relies neither on a lock nor on an atomic).

Perhaps we need a more general "cached property" facility to handle these cases.

Issue Links

• links to: GitHub Pull Request #4791