# Tell the running host that this machine's link is probably stale.
#
# **A laptop knows it just woke; the link does not.** After a resume the socket looks perfectly
# healthy from inside the process — no error, no close, because nothing has tried to send
# anything. Heartbeats discover it twenty or thirty seconds later, and for that time the node
# believes it is in a mesh it has left.
#
# A signal rather than anything that listens: nothing may listen on a node (novox/hq ADR 0004),
# and a socket for this would be a control surface on every machine in exchange for saving twenty
# seconds.
[Unit]
Description=Tell the Novox Mesh host its link may be stale

[Service]
Type=oneshot
# Nothing to do if the host is not running: this is a hint to a process, not a way to start one.
ExecStart=/bin/sh -c 'systemctl is-active --quiet nox-mesh-host.service && systemctl kill --signal=SIGHUP nox-mesh-host.service || true'