so.On("disconnection", func() {
s.Log.Debugf("WS disconnected (WSID=%s, SID=%s)", so.Id(), sess.ID)
s.sessions.UpdateIOSocket(sess.ID, nil)
so.On("disconnection", func() {
s.Log.Debugf("WS disconnected (WSID=%s, SID=%s)", so.Id(), sess.ID)
s.sessions.UpdateIOSocket(sess.ID, nil)