From 9ef27a2c7559f77a5375b4b2a11252c14f32d456 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Sat, 6 Jul 2024 17:37:37 +0900
Subject: [PATCH] audio: make applicationState() thread-safe

Closes #3021
---
 audio/error_ios.go | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/audio/error_ios.go b/audio/error_ios.go
index d6f6b9bea..404359452 100644
--- a/audio/error_ios.go
+++ b/audio/error_ios.go
@@ -20,11 +20,14 @@ package audio
 // #import <UIKit/UIKit.h>
 //
 // static UIApplicationState applicationState() {
-//   // Actually this method should be called on the main thread,
-//   // but there is no way to do that in the current Ebitengine implementation.
-//   // dispatch_(a)sync causes a deadlock.
-//   // As this is for an invetigation of iOS errors, that's OK to leave this issue so far.
-//   return [[UIApplication sharedApplication] applicationState];
+//   if ([NSThread isMainThread]) {
+//     return [[UIApplication sharedApplication] applicationState];
+//   }
+//   __block UIApplicationState state;
+//   dispatch_sync(dispatch_get_main_queue(), ^{
+//     state = [[UIApplication sharedApplication] applicationState];
+//   });
+//   return state;
 // }
 import "C"