[ARROW-2759] Export notification socket of Plasma

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Component/s: C++ - Plasma, Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19143
• Assignee: Siyuan Zhuang
• Reporter: Siyuan Zhuang
• Created: 28/Jun/18 09:58
• Updated: 11/Jan/23 07:23
• Resolved: 03/Dec/18 22:34

Description

Currently, I am implementing an async interface for Ray. The implementation needs some kind of message polling methods like `get_next_notification`.
Unfortunately, I find `get_next_notification` in `https://github.com/apache/arrow/blob/master/python/pyarrow/_plasma.pyx` blocking, which is an impediment to implementing async utilities. Also, it's hard to check the status of the socket (it could be closed or break up). So I suggest export the notification socket so that there will be more flexibility.

Issue Links

• links to: GitHub Pull Request #3008