comm_point_internal
struct ub_event* comm_point_internal(struct comm_point* c);
ub_winsock_tcp_wouldblock(comm_point_internal(printq->client_cp), UB_EV_WRITE);
ub_winsock_tcp_wouldblock(comm_point_internal(printq->client_cp), UB_EV_WRITE);
struct ub_event* comm_point_internal(struct comm_point* c);