From 89561b41242d39e1646fd63c00affebf0b7ffdcd Mon Sep 17 00:00:00 2001
From: Kyle Matthew Hedden <kyle.hedden@verizonwireless.com>
Date: Tue, 22 Sep 2020 15:37:40 -0400
Subject: [PATCH] sychronize bundled image access to prevent crash

---
 MVMCore/MVMCore/OtherHandlers/MVMCoreCache.m | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/MVMCore/MVMCore/OtherHandlers/MVMCoreCache.m b/MVMCore/MVMCore/OtherHandlers/MVMCoreCache.m
index e012d2d..27eabb9 100644
--- a/MVMCore/MVMCore/OtherHandlers/MVMCoreCache.m
+++ b/MVMCore/MVMCore/OtherHandlers/MVMCoreCache.m
@@ -380,13 +380,15 @@ static NSString * const STATIC_CACHE_COMPONENT = @"StaticCache.txt";
 }
 
 - (nullable UIImage *)getImageFromRegisteredBundles:(nonnull NSString *)imageName {
-    UIImage *image = nil;
-    for (NSBundle *bundle in self.imageBundles) {
-        image = [UIImage imageNamed:imageName inBundle:bundle compatibleWithTraitCollection:nil];
-        if (image) {
-            break;
+    __block UIImage *image = nil;
+    dispatch_barrier_sync(self.imageCacheQueue, ^{
+        for (NSBundle *bundle in self.imageBundles) {
+            image = [UIImage imageNamed:imageName inBundle:bundle compatibleWithTraitCollection:nil];
+            if (image) {
+                break;
+            }
         }
-    }
+    });
     return image;
 }