From 1f0a8f4b13f92093a3ee59525b4f87b93be0d55f Mon Sep 17 00:00:00 2001
From: Olivier Poitrey <rs@dailymotion.com>
Date: Tue, 6 Nov 2012 17:14:20 +0100
Subject: [PATCH] Use the correct setter sementics for dispatch (fix 213)

---
 SDWebImage/SDImageCache.m         |  2 +-
 SDWebImage/SDWebImageCompat.h     | 13 ++++++++++++-
 SDWebImage/SDWebImageDownloader.m |  4 ++--
 3 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/SDWebImage/SDImageCache.m b/SDWebImage/SDImageCache.m
index e38eb79..b12d483 100644
--- a/SDWebImage/SDImageCache.m
+++ b/SDWebImage/SDImageCache.m
@@ -19,7 +19,7 @@ static const NSInteger kDefaultCacheMaxCacheAge = 60 * 60 * 24 * 7; // 1 week
 
 @property (strong, nonatomic) NSCache *memCache;
 @property (strong, nonatomic) NSString *diskCachePath;
-@property (assign, nonatomic) dispatch_queue_t ioQueue;
+@property (SDDispatchQueueSetterSementics, nonatomic) dispatch_queue_t ioQueue;
 
 @end
 
diff --git a/SDWebImage/SDWebImageCompat.h b/SDWebImage/SDWebImageCompat.h
index 7dc92cf..418bf98 100644
--- a/SDWebImage/SDWebImageCompat.h
+++ b/SDWebImage/SDWebImageCompat.h
@@ -35,17 +35,28 @@
 
 // @see https://github.com/ccgus/fmdb/commit/aef763eeb64e6fa654e7d121f1df4c16a98d9f4f
 #define SDDispatchQueueRelease(q) (dispatch_release(q))
-
 #if TARGET_OS_IPHONE
     #if __IPHONE_OS_VERSION_MIN_REQUIRED >= 60000
+        #undef SDDispatchQueueRelease
         #define SDDispatchQueueRelease(q)
+        #undef SDDispatchQueueSetterSementics
+        #define SDDispatchQueueSetterSementics strong
     #endif
 #else
     #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
+        #undef SDDispatchQueueRelease
         #define SDDispatchQueueRelease(q)
+        #undef SDDispatchQueueSetterSementics
+        #define SDDispatchQueueSetterSementics strong
     #endif
 #endif
 
+#if OS_OBJECT_USE_OBJC
+    #define SDDispatchQueueSetterSementics strong
+#else
+    #define SDDispatchQueueSetterSementics assign
+#endif
+
 NS_INLINE UIImage *SDScaledImageForPath(NSString *path, NSObject *imageOrData)
 {
     if (!imageOrData)
diff --git a/SDWebImage/SDWebImageDownloader.m b/SDWebImage/SDWebImageDownloader.m
index 40617ce..e467dc2 100644
--- a/SDWebImage/SDWebImageDownloader.m
+++ b/SDWebImage/SDWebImageDownloader.m
@@ -21,8 +21,8 @@ NSString *const kCompletedCallbackKey = @"completed";
 @property (strong, nonatomic) NSOperationQueue *downloadQueue;
 @property (strong, nonatomic) NSMutableDictionary *URLCallbacks;
 // This queue is used to serialize the handling of the network responses of all the download operation in a single queue
-@property (assign, nonatomic) dispatch_queue_t workingQueue;
-@property (assign, nonatomic) dispatch_queue_t barrierQueue;
+@property (SDDispatchQueueSetterSementics, nonatomic) dispatch_queue_t workingQueue;
+@property (SDDispatchQueueSetterSementics, nonatomic) dispatch_queue_t barrierQueue;
 
 @end