HQasperandClaude Opus 5.5 6d4c7c3150 fix(libkernel): select on kqueues as kqueue_poll answers ...

A kqueue descriptor is readable while one of its events is triggered and
is never writable or exceptional, as FreeBSD's kqueue_poll answers, on
both hosts. On Windows select threw for it, and on Linux its /dev/null
placeholder was reported readable and writable.

A descriptor that stops being a socket, a kqueue or a pipe during the
wait now fails the call with EBADF when it was closed and is selected
again with the rest of the timeout when its number was reused, as
FreeBSD's kern_select looks every descriptor up again in each pass,
instead of throwing. On Windows a host descriptor that is not a pipe
throws when select starts, before waiting.

Depends on #7139.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-18 00:45:57 +02:00

..

include

fix(libkernel): keep refusing a read low-water mark above 1 on non-stream sockets

2026-10-17 11:20:03 +00:00

src

fix(libkernel): select on kqueues as kqueue_poll answers

2026-10-18 00:45:57 +02:00