The ioQueue is "SERIAL" ，so "dispatch_barrier_async" is not needed.

卢克
Commit dab65ae8f5883d0bef61a092bf89bf505df85f61 1 parent b1203d4a
Showing 1 changed file with 1 additions and 1 deletions
SDWebImage/SDImageCache.m
--- a/SDWebImage/SDImageCache.m
View file @dab65ae
+++ b/SDWebImage/SDImageCache.m
View file @dab65ae
@@ -358,7 +358,7 @@ BOOL ImageDataHasPNGPreffix(NSData *data) {
 }
 - (void)cleanDiskWithCompletionBlock:(void (^)())completionBlock {
-    dispatch_barrier_async(self.ioQueue, ^{
+    dispatch_async(self.ioQueue, ^{
         NSURL *diskCacheURL = [NSURL fileURLWithPath:self.diskCachePath isDirectory:YES];
         NSArray *resourceKeys = @[NSURLIsDirectoryKey, NSURLContentModificationDateKey, NSURLTotalFileAllocatedSizeKey];