From c9e6c00a89d88f10ce2708ba7464c0304128012c Mon Sep 17 00:00:00 2001
From: Gorjan Shukov <gorjan5@hotmail.com>
Date: Tue, 13 Aug 2024 00:59:50 +0200
Subject: [PATCH] Fix race condition crash on processPendingRequests

---
 Source/ResourceLoaderDelegate.swift | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/ResourceLoaderDelegate.swift b/Source/ResourceLoaderDelegate.swift
index 41f85a0..d49aef0 100644
--- a/Source/ResourceLoaderDelegate.swift
+++ b/Source/ResourceLoaderDelegate.swift
@@ -21,7 +21,12 @@ final class ResourceLoaderDelegate: NSObject, AVAssetResourceLoaderDelegate, URL
 
     private var session: URLSession?
     private var response: URLResponse?
-    private var pendingRequests = Set<AVAssetResourceLoadingRequest>()
+    private let queue = DispatchQueue(label: "com.gcd.CachingPlayerItemQueue", qos: .userInitiated, attributes: .concurrent)
+    private var pendingRequests: Set<AVAssetResourceLoadingRequest> {
+        get { queue.sync { return pendingRequestsValue } }
+        set { queue.async(flags: .barrier) { [weak self] in self?.pendingRequestsValue = newValue } }
+    }
+    private var pendingRequestsValue = Set<AVAssetResourceLoadingRequest>()
     private var isDownloadComplete = false
 
     private let url: URL