/// <summary>
/// Returns false if the <see cref="_promise"/> is already completed.
/// </summary>
private bool AddWatcher(IActorRef watcher)
{
if (WatchedBy.Contains(watcher))
{
return(false);
}
return(UpdateWatchedBy(WatchedBy, WatchedBy.Add(watcher)) || AddWatcher(watcher));
}
private void RemoveWatcher(IActorRef watcher)
{
if (!WatchedBy.Contains(watcher))
{
return;
}
if (!UpdateWatchedBy(WatchedBy, WatchedBy.Remove(watcher)))
{
RemoveWatcher(watcher);
}
}