[ARROW-10184] [C++] Allow futures to be added as tasks to a TaskGroup

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Do
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/26191
• Assignee: Unassigned
• Reporter: Weston Pace
• Created: 05/Oct/20 22:37
• Updated: 11/Jan/23 08:11
• Resolved: 17/Dec/20 18:59

Description

Once basic continuation support is in, if we can add futures to a task group, and a task group completion can be expressed as a future, then we can use task groups in such a way that they will not deadlock.

This task focuses on the ability to add a future to a task group instead of spawning a new task.