X-Git-Url: http://git.archive.openwrt.org/?a=blobdiff_plain;ds=sidebyside;f=utils.c;h=65109d7b262ef82837dbfb2912922c4f036a3956;hb=fe8a6dd2991d54c3eb84cb12764c1316d19bac4e;hp=cf0718a1d598385da33eb2fc0388a0d8d390ad90;hpb=3492219e211678c56b48d3f544cb0c0da9d606a0;p=project%2Fnetifd.git

diff --git a/utils.c b/utils.c
index cf0718a..65109d7 100644
--- a/utils.c
+++ b/utils.c
@@ -1,8 +1,68 @@
+/*
+ * 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);
+}