Function ng_xxx_disconnect

freebsd/netgraph/ng_sample.c:486–495

* Hook disconnection * * For this type, removal of the last link destroys the node */

 * For this type, removal of the last link destroys the node
 */
static int
ng_xxx_disconnect(hook_p hook)
{
	if (NG_HOOK_PRIVATE(hook))
		((struct XXX_hookinfo *) (NG_HOOK_PRIVATE(hook)))->hook = NULL;
	if ((NG_NODE_NUMHOOKS(NG_HOOK_NODE(hook)) == 0)
	&& (NG_NODE_IS_VALID(NG_HOOK_NODE(hook)))) /* already shutting down? */
		ng_rmnode_self(NG_HOOK_NODE(hook));
	return (0);
}