1 files changed, 44 insertions, 0 deletions
diff --git a/src/lib/list.c b/src/lib/list.c
new file mode 100644
index 0000000000..ea7eff44f7
--- /dev/null
+++ b/src/lib/list.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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 "base/list.h"
+
+void list_remove(ListNode *node)
+{
+	if (node->prev)
+		node->prev->next = node->next;
+	if (node->next)
+		node->next->prev = node->prev;
+}
+
+void list_insert_after(ListNode *node, ListNode *after)
+{
+	node->next = after->next;
+	node->prev = after;
+	after->next = node;
+	if (node->next)
+		node->next->prev = node;
+}
+
+void list_insert_before(ListNode *node, ListNode *before)
+{
+	node->prev = before->prev;
+	node->next = before;
+	before->prev = node;
+	if (node->prev)
+		node->prev->next = node;
+}