Gets a handle on this coode’s Supervisor.
A future that completes when the supervision
tree is interrupted.
Akin to Go’s <-ctx.Done()
chan recv.
Returns supervision state immediately
Listens to OS signals for ever. Completes on the first one received amon:
Spawn starts a supervised task, calling spawn
.
Spawn starts a supervised task, calling spawn_blocking
.
Scopes (async) code that needs supervision.
Scopes code that needs supervision.
A future that triggers the interruption or termination
of the supervision tree.
Completes when all children are confirmed dead.