From 5a12ccd97f0a9504f6d4178600ca45c00dc6af8a Mon Sep 17 00:00:00 2001
From: Alexey Belkevich <belkevich.alexey@gmail.com>
Date: Sat, 16 Jan 2016 16:01:35 +0200
Subject: [PATCH] Fixed potential crash on reachability status check

---
 Classes/Public/SCNetworkReachability.m | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Classes/Public/SCNetworkReachability.m b/Classes/Public/SCNetworkReachability.m
index c0eaaa2..6ad7635 100644
--- a/Classes/Public/SCNetworkReachability.m
+++ b/Classes/Public/SCNetworkReachability.m
@@ -21,8 +21,8 @@ @interface SCNetworkReachability ()
 
 @property (atomic, assign) BOOL isStatusValid;
 @property (atomic, assign) SCNetworkStatus status;
+@property (atomic, copy) void (^statusBlock)(SCNetworkStatus status);
 @property (nonatomic, copy) void (^observationBlock)(SCNetworkStatus status);
-@property (nonatomic, copy) void (^statusBlock)(SCNetworkStatus status);
 @end
 
 @implementation SCNetworkReachability
@@ -111,7 +111,8 @@ - (void)reachabilityStatusOnDispatchQueue:(dispatch_queue_t)queue
         [self updateStatusBlockWithDispatchQueue:queue block:block];
         if (self.isStatusValid)
         {
-            self.statusBlock(self.status);
+            safe_block(self.statusBlock, self.status);
+            self.statusBlock = nil;
         }
     }
 }
@@ -136,7 +137,7 @@ - (void)updateStatusBlockWithDispatchQueue:(dispatch_queue_t)queue
 {
     if (self.statusBlock)
     {
-        void (^previousBlock)(SCNetworkStatus status) = self.statusBlock;
+        void (^previousBlock)(SCNetworkStatus) = self.statusBlock;
         self.statusBlock = ^(SCNetworkStatus status)
         {
             previousBlock(status);