+/*
+ * netifd - network interface daemon
+ * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
#include <string.h>
+#include <stdlib.h>
#include "utils.h"
-int avl_strcmp(const void *k1, const void *k2, void *ptr)
+void
+__vlist_simple_init(struct vlist_simple_tree *tree, int offset)
{
- return strcmp(k1, k2);
+ INIT_LIST_HEAD(&tree->list);
+ tree->version = 1;
+ tree->head_offset = offset;
}
+void
+vlist_simple_delete(struct vlist_simple_tree *tree, struct vlist_simple_node *node)
+{
+ char *ptr;
+
+ list_del(&node->list);
+ ptr = (char *) node - tree->head_offset;
+ free(ptr);
+}
+
+void
+vlist_simple_flush(struct vlist_simple_tree *tree)
+{
+ struct vlist_simple_node *n, *tmp;
+
+ list_for_each_entry_safe(n, tmp, &tree->list, list) {
+ if ((n->version == tree->version || n->version == -1) &&
+ tree->version != -1)
+ continue;
+
+ vlist_simple_delete(tree, n);
+ }
+}
+
+void
+vlist_simple_replace(struct vlist_simple_tree *dest, struct vlist_simple_tree *old)
+{
+ struct vlist_simple_node *n, *tmp;
+
+ vlist_simple_update(dest);
+ list_for_each_entry_safe(n, tmp, &old->list, list) {
+ list_del(&n->list);
+ vlist_simple_add(dest, n);
+ }
+ vlist_simple_flush(dest);
+}
+
+void
+vlist_simple_flush_all(struct vlist_simple_tree *tree)
+{
+ tree->version = -1;
+ vlist_simple_flush(tree);
+}