}

type fileWatcher struct {
	mu sync.RWMutex

	// The watcher maintain a map of workers,
	// keyed by watched dir (parent dir of watched files).
	workers map[string]*workerState

	funcs *patchTable
}

type workerState struct {
	worker *worker
	count  int
}

// functions that can be replaced in a test setting
type patchTable struct {
	newWatcher     func() (*fsnotify.Watcher, error)

     */
    private interface WorkerState {
        void startWaitingForNextItem();

        void finishWaitingForNextItem();
    }

    /**
     * Implementations are only used by the worker thead and do not need to be thread safe.
     */
    private interface WorkerStats extends WorkerState {
        void startSelect();

        void finishSelect();