Add support for RunShutdownable to actorSet

actorset.go

@@ -16,6 +16,7 @@ type actorSets struct {
 	configurable    actorSet[Configurable]
 	initializable   actorSet[Initializable]
 	runnable        actorSet[Runnable]
+	runShutdownable actorSet[RunShutdownable]
 	trimmable       actorSet[Trimmable]
 }
 
@@ -52,6 +53,7 @@ func (sets *actorSets) All() iter.Seq[actorSetIface] {
 		yield(&sets.configurable)
 		yield(&sets.initializable)
 		yield(&sets.runnable)
+		yield(&sets.runShutdownable)
 		yield(&sets.trimmable)
 	}
 }
@@ -66,7 +68,9 @@ func (this *actorSets) add(ctx context.Context, actor Actor) {
 		done:  done,
 		order: this.nextOrder,
 	}
-	if _, ok := actor.(Runnable); ok {
+	_, isRunnable        := actor.(Runnable)
+	_, isRunShutdownable := actor.(RunShutdownable)
+	if isRunnable || isRunShutdownable {
 		info.stopped = make(chan struct { })
 	}
 	this.inf[actor] = info