From f8c9b19a624b23ac633d1c34ceb206b7adebe54d Mon Sep 17 00:00:00 2001
From: huangpeizhi2018 <42397138+huangpeizhi2018@users.noreply.github.com>
Date: Sat, 8 Sep 2018 18:12:09 +0800
Subject: [PATCH] fix checkExpireCallback panic

---
 cache.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cache.go b/cache.go
index 45dcc2b..2a09a08 100644
--- a/cache.go
+++ b/cache.go
@@ -87,6 +87,9 @@ func (cache *Cache) startExpirationProcessing() {
 					if !cache.checkExpireCallback(item.key, item.data) {
 						item.touch()
 						cache.priorityQueue.update(item)
+						if cache.priorityQueue.Len() == 1 {
+							goto done
+						}
 						i++
 						continue
 					}