codezero-jp
diff --git a/‎SDWebImage/SDWebImageManager.m‎
Lines changed: 5 additions & 1 deletion b/‎SDWebImage/SDWebImageManager.m‎
Lines changed: 5 additions & 1 deletion
@@ -301,7 +301,11 @@ - (void)cancelAll {
 }
 
 - (BOOL)isRunning {
-    return self.runningOperations.count > 0;
+    BOOL isRunning = NO;
+    @synchronized(self.runningOperations) {
+        isRunning = (self.runningOperations.count > 0);
+    }
+    return isRunning;
 }
 
 @end
Original file line number	Diff line number	Diff line change
`@@ -301,7 +301,11 @@ - (void)cancelAll {`
`301`	`301`	`}`
`302`	`302`
`303`	`303`	`- (BOOL)isRunning {`
`304`		`- return self.runningOperations.count > 0;`
	`304`	`+ BOOL isRunning = NO;`
	`305`	`+ @synchronized(self.runningOperations) {`
	`306`	`+ isRunning = (self.runningOperations.count > 0);`
	`307`	`+ }`
	`308`	`+ return isRunning;`
`305`	`309`	`}`
`306`	`310`
`307`	`311`	`@end`