Function ng_package_msg_self

lib/ff_ng_base.c:3694–3720

* special case to send a message to self (e.g. destroy node) * Possibly indicate an arrival hook too. * Useful for removing that hook :-) */

 * Useful for removing that hook :-)
 */
item_p
ng_package_msg_self(node_p here, hook_p hook, struct ng_mesg *msg)
{
    item_p item;

    /*
     * Find the target node.
     * If there is a HOOK argument, then use that in preference
     * to the address.
     */
    if ((item = ng_alloc_item(NGQF_MESG, NG_NOFLAGS)) == NULL) {
        NG_FREE_MSG(msg);
        return (NULL);
    }

    /* Fill out the contents */
    item->el_flags |= NGQF_WRITER;
    NG_NODE_REF(here);
    NGI_SET_NODE(item, here);
    if (hook) {
        NG_HOOK_REF(hook);
        NGI_SET_HOOK(item, hook);
    }
    NGI_MSG(item) = msg;
    NGI_RETADDR(item) = ng_node2ID(here);
    return (item);
}

/*
 * Send ng_item_fn function call to the specified node.