[ARROW-8732] [C++] Let Futures support cancellation

• Type: Wish
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/17171
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 07/May/20 14:56
• Updated: 11/Jan/23 08:02
• Resolved: 09/Mar/21 16:07

Description

There should be a way for consumers of Futures to notify that they are not interested in the task at hand anymore. For some kinds of tasks this may allow cancelling the task in-flight (e.g. an IO task, or a task consisting of multiple steps).

Issue Links

• is depended upon by: ARROW-11841 [R][C++] Allow cancelling long-running commands
• supercedes: ARROW-11191 [C++] Use FnOnce for TaskGroup's tasks instead of std::function
• links to: GitHub Pull Request #7179
• links to: GitHub Pull Request #9528