RDS_EP_STATE_CLOSING
ep->ep_state = RDS_EP_STATE_CLOSING;
while (ep->ep_state == RDS_EP_STATE_CLOSING) {
ep->ep_state = RDS_EP_STATE_CLOSING;
while (ep->ep_state == RDS_EP_STATE_CLOSING) {
ep->ep_state = RDS_EP_STATE_CLOSING;