l0ng-ai 4486ee6849 fix(control): spawn on backlog, and hold a watch until its id is out ...

Two scheduling bugs on the server side of a connection.

The pool asked `idle == 0` before spawning, but `idle` counts a worker
from before it parks until after it has re-acquired the lock on its way
out — so through the whole wake-up window a worker already handed a job
still looked free, and the second `notify_one` in that window went to a
thread that had left the wait set. A client pipelining k+1 frames onto k
parked workers left the last one queued behind a `git status`. The rule
is now "more queued than parked", which counts both sides of the window
and cancels it out.

`WatchOpen` started its forwarder before the reply carrying the watch id
was written, and both go through the same sink. A directory that changed
in that instant could push a batch the client dropped — it files the id
only once `call` returns — and since the tree relists only on a watch
event, that change stayed invisible. The forwarder is now parked and
started by `finish`, and dropped outright when no reply went out, so a
cancelled `WatchOpen` no longer leaves an OS watch behind either.

2026-07-28 22:00:36 +08:00

..

tty7-core

fix(control): spawn on backlog, and hold a watch until its id is out

2026-07-28 22:00:36 +08:00

tty7-server

fix(workspaces): make a handover atomic and stop two stores clobbering one file

2026-07-28 21:54:23 +08:00