Function node_announcement

common/gossmap.c:650–668

BOLT #7: * 1. type: 257 (`node_announcement`) * 2. data: * * [`signature`:`signature`] * * [`u16`:`flen`] * * [`flen*byte`:`features`] * * [`u32`:`timestamp`] * * [`point`:`node_id`] * * [`3*byte`:`rgb_color`] * * [`32*byte`:`alias`] * * [`u16`:`addrlen`] * * [`addrlen*byte`:`addresses`] */

 *    * [`addrlen*byte`:`addresses`]
 */
static void node_announcement(struct gossmap *map, u64 nann_off)
{
	const u64 feature_len_off = 2 + 64;
	size_t feature_len;
	struct gossmap_node *n;
	struct node_id id;

	feature_len = map_be16(map, nann_off + feature_len_off);
	map_nodeid(map, nann_off + feature_len_off + 2 + feature_len + 4, &id);
	if ((n = gossmap_find_node(map, &id))) {
		/* Did this replace old announcement?  If so, that's dead. */
		if (gossmap_node_announced(n)) {
			map->num_live--;
			map->num_dead++;
		}
		n->nann_off = nann_off;
	}
	map->num_live++;
}

static bool report_dying_cb(struct gossmap *map,
			    u64 dying_off,