Function routing_channel_spent

gossipd/routing.c:2150–2180

}

void routing_channel_spent(struct routing_state *rstate,
			   u32 current_blockheight,
			   struct chan *chan)
{
	u64 index;
	u32 deadline;
	u8 *msg;

	/* FIXME: We should note that delay is not necessary (or even
	 * sensible) for local channels! */
	if (local_direction(rstate, chan, NULL)) {
		channel_spent(rstate, chan);
		return;
	}

	/* BOLT #7:
	 * - once its funding output has been spent OR reorganized out:
	 *   - SHOULD forget a channel after a 12-block delay.
	 */
	deadline = current_blockheight + 12;

	/* Save to gossip_store in case we restart */
	msg = towire_gossip_store_chan_dying(tmpctx, &chan->scid, deadline);
	index = gossip_store_add(rstate->gs, msg, 0, false, false, NULL);

	/* Remember locally so we can kill it in 12 blocks */
	status_debug("channel %s closing soon due"
		     " to the funding outpoint being spent",
		     type_to_string(msg, struct short_channel_id, &chan->scid));
	remember_chan_dying(rstate, &chan->scid, deadline, index);
}