mirror of
https://github.com/nim-lang/Nim.git
synced 2025-12-29 01:14:41 +00:00
29a7d60acb
kqueue will remove pipes automatically if their read end is closed. Unfortunately this means that trying to unregister it (which is necessary to clean up resources & for consistency with other ioselectors implementations) will set an ENOENT error, which currently raises an exception. (ETA: in other words, it is currently impossible to call unregister on a pipe fd without potentially getting the selector into an invalid state on platforms with kqueue.) Avoid this issue by ignoring ENOENT errors returned from kqueue. (Tested on FreeBSD. I added a test case to the tioselectors file; the seemingly unrelated change is to fix a race condition that doesn't appear on Linux, so that it would run my code too.)