Adel-Ayoub 2051c5f358 wgengine,util/execqueue: wait for in-flight linkChange before closing ...

ExecQueue.Shutdown does not wait for a function that is already
executing, so Close could tear down magicConn, dns, wgdev, and tundev
while a queued linkChange was still using them, panicking during
shutdown. Add ExecQueue.ShutdownAndWait, which discards queued
functions that have not started and waits for the in-flight one, and
use it in Close with a bounded context before tearing anything down.
The eventbus client is closed first and is the queue's only producer,
so no new work can arrive after the drain.

Updates #17641

Change-Id: I0350bcb59c1ee4b0dcac88cf66b93828466c8c98
Signed-off-by: Adel-Ayoub <adelayoub.maaziz@gmail.com>

2026-07-07 06:01:08 -07:00

..

execqueue_test.go

wgengine,util/execqueue: wait for in-flight linkChange before closing

2026-07-07 06:01:08 -07:00

execqueue.go

wgengine,util/execqueue: wait for in-flight linkChange before closing

2026-07-07 06:01:08 -07:00