public void Stop()
        {
            if (!_isRunning)
            {
                return;
            }

            _isRunning = false;

#if UNITY_EDITOR
            _polster.Join();
#else
            _polster.Wait();
#endif

            LeapC.CloseConnection(_leapConnection);
        }
    public void Stop() {
      if (!_isRunning)
        return;

      _isRunning = false;

      //Very important to close the connection before we try to join the
      //worker thread!  The call to PollConnection can sometimes block,
      //despite the timeout, causing an attempt to join the thread waiting
      //forever and preventing the connection from stopping.
      //
      //It seems that closing the connection causes PollConnection to 
      //unblock in these cases, so just make sure to close the connection
      //before trying to join the worker thread.
      LeapC.CloseConnection(_leapConnection);

      _polster.Join();
    }