tree 55ec954c89919ef6891e927c420c06da8e125d9c
parent 1f8ef8ef16ef60f668f30c7595c59e28a1537eaa
author ericorth <ericorth@google.com> 1745354476 -0700
committer Copybara-Service <copybara-worker@google.com> 1745354530 -0700

Cleanup QboneTunnel threading/shutdown

* Move EpollServer out of QboneTunnel into the parent QboneTunnelSilo, so the silo can more cleanly and safely manage the shutdown and destroy the tunnel and all its resources in the silo/epoll thread.
* Move ownership of the tunnel into the silo, and force all the silo-external interaction (mostly status retrieval) to go through the silo. Gives the silo a bit more control to enforce thread safety on those calls.

PiperOrigin-RevId: 750311878