From 346888db411211bbf79b5d762234ddace7ba74ae Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Thu, 4 May 2023 18:33:06 -0400
Subject: [PATCH] Fix deadlock when drafts persistent container is initialized
 simultaneously on background and main threads

Fixes #374
---
 Tusker/AppDelegate.swift | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Tusker/AppDelegate.swift b/Tusker/AppDelegate.swift
index 89545f68..9bd2673b 100644
--- a/Tusker/AppDelegate.swift
+++ b/Tusker/AppDelegate.swift
@@ -60,6 +60,10 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
             }
         }
         
+        // make sure the persistent container is initialized on the main thread
+        // otherwise initializing it on the background thread can deadlock with accessing it on the main thread elsewhere
+        _ = DraftsPersistentContainer.shared
+        
         DispatchQueue.global(qos: .userInitiated).async {
             let oldDraftsFile = documentsDirectory.appendingPathComponent("drafts").appendingPathExtension("plist")
             let appGroupDraftsFile = FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: "group.space.vaccor.Tusker")!.appendingPathComponent("drafts").appendingPathExtension("plist")