Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00000%. Comparing base (d5eb534) to head (5387ebb).
⚠️ Report is 4 commits behind head on main.

@@               Coverage Diff               @@
##                 main        #3503   +/-   ##
===============================================
  Coverage   100.00000%   100.00000%           
===============================================
  Files             128          128           
  Lines           19452        19490   +38     
  Branches         1321         1325    +4     
===============================================
+ Hits            19452        19490   +38     

I'll close this in favor of the more general solution @arthur-tacca was proposing.

Gah, I forgot what this PR did. NVM!

Sorry I just noticed that this only checks for ENOENT

                except OSError as e:
                    if e.errno == errno.ENOENT:  # pragma: no branch
                        # the event isn't in kqueue
                        continue

But for similar code in _wait_common, Trio currently checks for exc.errno in (errno.EBADF, errno.ENOENT). It says "FreeBSD reports this using EBADF. macOS uses ENOENT". Not sure if this applies to this situation too.

Ah possible. I just took that errno from the relevant man page on macOS...