lib: Add move operation for lists

Allows moving the elements of one linked list to
another. Re-initializes the source list.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lib/list.c b/src/lib/list.c
index 908d3b71..01fdf6e3 100644
--- a/src/lib/list.c
+++ b/src/lib/list.c
@@ -70,3 +70,14 @@ bool list_is_empty(struct list_head * h)
 {
         return h->nxt == h;
 }
+
+void list_move(struct list_head * dst,
+               struct list_head * src)
+{
+        dst->nxt = src->nxt;
+        dst->prv = src->prv;
+        dst->nxt->prv = src->nxt->prv;
+        dst->prv->nxt = src->prv->nxt;
+
+        list_head_init(src);
+}