for {
		select {
		case event, ok := <-sc.certWatcher.Events:
			// Channel is closed.
			if !ok {
				return
			}
			// We only care about updates that change the file content
			if !(isWrite(event) || isRemove(event) || isCreate(event)) {
				continue
			}
			sc.certMutex.RLock()
			resources := make(map[FileCert]struct{})
			for k, v := range sc.fileCerts {
				resources[k] = v
			}

    kWrite = 3
  };

 public:
  bool IsAlloc() const { return effects_.test(kAlloc); }
  bool IsFree() const { return effects_.test(kFree); }
  bool IsRead() const { return effects_.test(kRead); }
  bool IsWrite() const { return effects_.test(kWrite); }
  bool IsAllocOnly() const { return IsAlloc() && effects_.count() == 1; }
  bool IsReadOnly() const { return IsRead() && effects_.count() == 1; }