MT#57268 improve g_queue_move()

No need to iterate the list to achieve what the function does. We can
simply adjust pointers and count.

Change-Id: I849817e53d859ac73c14131b54a6d05e4efeb37e

include/aux.h

@@ -153,10 +153,19 @@ INLINE char *glib_json_print(JsonBuilder *builder) {
 
 /* GQUEUE */
 
+// appends `src` to the end of `dst` and clears out `src`
 INLINE void g_queue_move(GQueue *dst, GQueue *src) {
-	GList *l;
-	while ((l = g_queue_pop_head_link(src)))
-		g_queue_push_tail_link(dst, l);
+	if (!src->length)
+		return;
+	if (!dst->length) {
+		*dst = *src;
+		g_queue_init(src);
+		return;
+	}
+	dst->tail->next = src->head;
+	src->head->prev = dst->tail;
+	dst->length += src->length;
+	g_queue_init(src);
 }
 INLINE void g_queue_truncate(GQueue *q, unsigned int len) {
 	while (q->length > len)