SEQ_STATE_CONTENDED
case SEQ_STATE_CONTENDED:
if (seq->state != SEQ_STATE_CONTENDED) {
seq->state = SEQ_STATE_CONTENDED;
case SEQ_STATE_CONTENDED:
case SEQ_STATE_CONTENDED:
case SEQ_STATE_CONTENDED:
case SEQ_STATE_CONTENDED:
seq->state = SEQ_STATE_CONTENDED;
case SEQ_STATE_CONTENDED: