/*
* Do local shutdown processing..
* All our links and the name have already been removed.
* If we are a persistant device, we might refuse to go away.
* In the case of a persistant node we signal the framework that we
* are still in business by clearing the NGF_INVALID bit. However
* If we find the NGF_REALLY_DIE bit set, this means that
* we REALLY need to die (e.g. hardware removed).
* This would have been set using the NG_NODE_REALLY_DIE(node)
* macro in some device dependent function (not shown here) before
* calling ng_rmnode_self().
*/
static int
ng_xxx_shutdown(node_p node)
{
const xxx_p privdata = NG_NODE_PRIVATE(node);
#ifndef PERSISTANT_NODE
NG_NODE_SET_PRIVATE(node, NULL);
NG_NODE_UNREF(node);
free(privdata, M_NETGRAPH);
#else
if (node->nd_flags & NGF_REALLY_DIE) {
/*
* WE came here because the widget card is being unloaded,
* so stop being persistant.
* Actually undo all the things we did on creation.
*/
NG_NODE_SET_PRIVATE(node, NULL);
NG_NODE_UNREF(privdata->node);
free(privdata, M_NETGRAPH);
return (0);
}
NG_NODE_REVIVE(node); /* tell ng_rmnode() we will persist */
#endif /* PERSISTANT_NODE */
return (0);
}
static int
ng_ubt_shutdown(node_p node)
{
if (node->nd_flags & NGF_REALLY_DIE) {
/*
* We came here because the USB device is being
* detached, so stop being persistent.
*/
NG_NODE_SET_PRIVATE(node, NULL);
NG_NODE_UNREF(node);
} else
NG_NODE_REVIVE(node); /* tell ng_rmnode we are persisant */
return (0);
} /* ng_ubt_shutdown */