duplicate failed urls are added into failedURLs

initlifeinc · initlifeinc · commit cded20c736de · 2014-12-22T16:58:16.000+08:00
fix bug when download image with option SDWebImageRetryFailed
diff --git a/SDWebImage/SDWebImageManager.m b/SDWebImage/SDWebImageManager.m
@@ -194,7 +194,9 @@ - (void)diskImageExistsForURL:(NSURL *)url
 
                     if (error.code != NSURLErrorNotConnectedToInternet && error.code != NSURLErrorCancelled && error.code != NSURLErrorTimedOut) {
                         @synchronized (self.failedURLs) {
-                            [self.failedURLs addObject:url];
+                            if (![self.failedURLs containsObject:url]) {
+                                [self.failedURLs addObject:url];
+                            }
                         }
                     }
                 }

Original file line number	Diff line number	Diff line change
`@@ -194,7 +194,9 @@ - (void)diskImageExistsForURL:(NSURL *)url`
`194`	`194`
`195`	`195`	`if (error.code != NSURLErrorNotConnectedToInternet && error.code != NSURLErrorCancelled && error.code != NSURLErrorTimedOut) {`
`196`	`196`	`@synchronized (self.failedURLs) {`
`197`		`- [self.failedURLs addObject:url];`
	`197`	`+ if (![self.failedURLs containsObject:url]) {`
	`198`	`+ [self.failedURLs addObject:url];`
	`199`	`+ }`
`198`	`200`	`}`
`199`	`201`	`}`
`200`	`202`	`}`