Function ng_bridge_timeout

freebsd/netgraph/ng_bridge.c:1043–1085

}

static void
ng_bridge_timeout(node_p node, hook_p hook, void *arg1, int arg2)
{
	const priv_p priv = NG_NODE_PRIVATE(node);
	int bucket;
	int counter = 0;
	hook_p ret;

	/* Update host time counters and remove stale entries */
	for (bucket = 0; bucket < priv->numBuckets; bucket++) {
		struct ng_bridge_hent **hptr = &SLIST_FIRST(&priv->tab[bucket]);

		while (*hptr != NULL) {
			struct ng_bridge_hent *const hent = *hptr;

			/* Remove hosts we haven't heard from in a while */
			if (++hent->host.staleness >= priv->conf.maxStaleness) {
				*hptr = SLIST_NEXT(hent, next);
				free(hent, M_NETGRAPH_BRIDGE);
				priv->numHosts--;
			} else {
				if (hent->host.age < 0xffff)
					hent->host.age++;
				hptr = &SLIST_NEXT(hent, next);
				counter++;
			}
		}
	}
	KASSERT(priv->numHosts == counter,
	    ("%s: hosts: %d != %d", __func__, priv->numHosts, counter));

	/* Decrease table size if necessary */
	ng_bridge_rehash(priv);

	/* Decrease loop counter on muted looped back links */
	counter = 0;
	NG_NODE_FOREACH_HOOK(node, ng_bridge_unmute, &counter, ret);
	KASSERT(priv->numLinks == counter,
	    ("%s: links: %d != %d", __func__, priv->numLinks, counter));

	/* Register a new timeout, keeping the existing node reference */
	ng_callout(&priv->timer, node, NULL, hz, ng_bridge_timeout, NULL, 0);
}

/*
 * Return node's "name", even if it doesn't have one.