RING_OPEN
if ((ring->status == RING_OPEN) &&
if (ring->status != RING_OPEN)
if (ring->status != RING_OPEN)
ring->status = RING_OPEN;
if (flow->rings[flowid]->status != RING_OPEN)
if (flow->rings[flowid]->status == RING_OPEN)
if (ring->status != RING_OPEN)