737 B
737 B
Fix graceful cancellation of daemon actors
Previously, his was a bug where if the soft wait on a sub-process (the await .proc.wait()) in the reaper task teardown was cancelled we would fail over to the hard reaping sequence (meant for culling off any potential zombies via system kill signals). The hard reap has a timeout of 3s (currently though in theory we could make it shorter?) before system signalling kicks in. This means that any daemon actor still running during nursery exit would get hard reaped (3s later) instead of cancelled via IPC message. Now we catch the trio.Cancelled, call Portal.cancel_actor() on the daemon and expect the child to self-terminate after the runtime cancels and shuts down the process.