SESS_EV_START
session_fsm(&s->sev, SESS_EV_START, 0);
{ SESS_INIT, SESS_EV_START, sess_do_start },
{ SESS_FREE, SESS_EV_START, sess_do_start },
{ SESS_FAILED, SESS_EV_START, sess_do_start },
session_fsm(&s->sev, SESS_EV_START, s->holdTimer);
case SESS_EV_START: