From 28b7ba01dc7d79e3793da7a9950ae1d84a75719e Mon Sep 17 00:00:00 2001
From: John Rommel Estropia <rommel.estropia@gmail.com>
Date: Thu, 31 Mar 2016 00:04:17 +0900
Subject: [PATCH] prevent deadlock on when DataStack gets deallocated

---
 Sources/Setup/DataStack.swift | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Sources/Setup/DataStack.swift b/Sources/Setup/DataStack.swift
index d41791c..0a900a5 100644
--- a/Sources/Setup/DataStack.swift
+++ b/Sources/Setup/DataStack.swift
@@ -414,7 +414,16 @@ public final class DataStack {
     deinit {
         
         let coordinator = self.coordinator
-        coordinator.persistentStores.forEach { _ = try? coordinator.removePersistentStore($0) }
+        coordinator.performAsynchronously {
+            
+            withExtendedLifetime(coordinator) { coordinator in
+                
+                coordinator.persistentStores.forEach {
+                    
+                    _ = try? coordinator.removePersistentStore($0)
+                }
+            }
+        }
     }