32       ++Stat.Active;  in work()
48       ++Stat.Completed;  in work()
49       if (Stat.Active == 1 && Queue.empty()) {  in work()
51         assert(ShouldStop || Stat.Completed == Stat.Enqueued);  in work()
52         Stat.LastIdle = Stat.Completed;  in work()
59       assert(Stat.Active > 0 && "before decrementing");  in work()
60       --Stat.Active;  in work()
95     ++Stat.Enqueued;  in push()
108       ++Stat.Enqueued;  in append()
139               [&] { return Queue.empty() && Stat.Active == 0; });  in blockUntilIdleForTest()
143   dlog("Queue: {0}/{1} ({2} active). Last idle at {3}", Stat.Completed,  in notifyProgress()
144        Stat.Enqueued, Stat.Active, Stat.LastIdle);  in notifyProgress()
146     OnProgress(Stat);  in notifyProgress()