fix data race crash in memory cache

Merge pull request ibireme#153
wbcyclist · May 21, 2020 · 12f9e52 · 12f9e52
1 parent d6d783d
commit 12f9e52
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/YYCache/YYMemoryCache.m b/YYCache/YYMemoryCache.m
@@ -402,8 +402,9 @@ - (id)objectForKey:(id)key {
         node->_time = CACurrentMediaTime();
         [_lru bringNodeToHead:node];
     }
+    id value = node ? node->_value : nil;
     pthread_mutex_unlock(&_lock);
-    return node ? node->_value : nil;
+    return value;
 }
 
 - (void)setObject:(id)object forKey:(id)key {