TODO: list insert error

priority_list.go

@@ -92,11 +92,11 @@ func (pl *PriorityList) InsertValue(node INode) {
 		pl.head = node
 	} else {
 		cur := pl.head
-
+		var prev INode
 		for cur != nil {
 			if !cur.Compare(node) {
 				// 插入该值
-				prev := cur.GetPrev()
+				prev = cur.GetPrev()
 				if prev == nil {
 					node.SetNext(pl.head)
 					pl.head = node
@@ -105,10 +105,12 @@ func (pl *PriorityList) InsertValue(node INode) {
 					node.SetNext(cur)
 					cur.SetPrev(node)
 					node.SetPrev(prev)
+					return
 				}
 			}
 			cur = cur.GetNext()
 		}
+		prev.SetNext(node)
 	}
 }