Add `EventLoop#run(blocking)` and `EventLoop#interrupt`

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Add `EventLoop#run(blocking)` and `EventLoop#interrupt` #14568

Closed ysbaddaden closed 2 months ago

ysbaddaden commented 2 months ago

Implements a couple methods to run the event loop in non-blocking mode in addition to the blocking mode, plus the ability to interrupt a blocked thread. This adds the ability to:

quickly check the event loop for fibers to resume, without necessarily blocking;
interrupt a thread waiting on the event loop, allowing it to resume operation;

These features aren't needed right now, but that will change with RFC 0002.

Both the libevent and IOCP implementations have been manually tested.

crysbot commented 2 months ago

This pull request has been mentioned on Crystal Forum. There might be relevant details there:

https://forum.crystal-lang.org/t/curious-about-the-eventloop-updates/6825/1