From 6a6862c43b735f3b9d12a273d7774c5a68bf7532 Mon Sep 17 00:00:00 2001
From: Oliver Letterer <oliver.letterer@gmail.com>
Date: Sun, 21 Apr 2013 18:07:46 +0200
Subject: [PATCH] Workaround for #907.

---
 AFNetworking/AFHTTPClient.m | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/AFNetworking/AFHTTPClient.m b/AFNetworking/AFHTTPClient.m
index e23f2a0..683326f 100644
--- a/AFNetworking/AFHTTPClient.m
+++ b/AFNetworking/AFHTTPClient.m
@@ -1114,8 +1114,21 @@ static const NSUInteger AFMultipartBodyStreamProviderDefaultBufferLength = 4096;
 }
 
 - (void)close {
-    [_outputStream close];
-    _outputStream.delegate = nil;
+    NSOutputStream *outputStream = self.outputStream;
+    
+    [outputStream close];
+    outputStream.delegate = nil;
+    
+    /*
+     Workaround for a race condition in CFStream _CFStreamCopyRunLoopsAndModes. This outputstream needs to be retained just a little longer.
+     
+     See: https://github.com/AFNetworking/AFNetworking/issues/907
+     */
+    double delayInSeconds = 2.0;
+    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
+    dispatch_after(popTime, dispatch_get_main_queue(), ^{
+        outputStream.delegate = nil;
+    });
     
     _self = nil;
 }