From 94274baf88646d2f3bf642fc80eb851683c5efa7 Mon Sep 17 00:00:00 2001
From: Toshinari Nakamura <t.nakamura@sumally.com>
Date: Mon, 4 Aug 2014 17:05:48 +0900
Subject: [PATCH] fix cancelAll crash (Issue #809)

https://github.com/rs/SDWebImage/issues/809
---
 SDWebImage/SDWebImageManager.m | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
index 2781ec8..e545a84 100644
--- a/SDWebImage/SDWebImageManager.m
+++ b/SDWebImage/SDWebImageManager.m
@@ -283,8 +283,9 @@ - (void)saveImageToCache:(UIImage *)image forURL:(NSURL *)url {
 
 - (void)cancelAll {
     @synchronized (self.runningOperations) {
-        [self.runningOperations makeObjectsPerformSelector:@selector(cancel)];
-        [self.runningOperations removeAllObjects];
+        NSArray *copiedOperations = [self.runningOperations copy];
+        [copiedOperations makeObjectsPerformSelector:@selector(cancel)];
+        [self.runningOperations removeObjectsInArray:copiedOperations];
     }
 }