From 175e134478a5b5ab41a56f46288b9959342f18f9 Mon Sep 17 00:00:00 2001
From: Elias Naur <mail@eliasnaur.com>
Date: Sun, 2 Jun 2024 09:07:29 +0200
Subject: [PATCH] app: [macOS] panic if Main is not called from the main
 goroutine

Signed-off-by: Elias Naur <mail@eliasnaur.com>
---
 app/os_darwin.go | 6 +++++-
 app/os_macos.go  | 3 +++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/app/os_darwin.go b/app/os_darwin.go
index 8f82cc94..fc5a4353 100644
--- a/app/os_darwin.go
+++ b/app/os_darwin.go
@@ -75,9 +75,13 @@ var displayLinks sync.Map
 
 var mainFuncs = make(chan func(), 1)
 
+func isMainThread() bool {
+	return bool(C.isMainThread())
+}
+
 // runOnMain runs the function on the main thread.
 func runOnMain(f func()) {
-	if C.isMainThread() {
+	if isMainThread() {
 		f()
 		return
 	}
diff --git a/app/os_macos.go b/app/os_macos.go
index cb27f942..1da5083f 100644
--- a/app/os_macos.go
+++ b/app/os_macos.go
@@ -976,6 +976,9 @@ func (w *window) init() error {
 }
 
 func osMain() {
+	if !isMainThread() {
+		panic("app.Main must run on the main goroutine")
+	}
 	C.gio_main()
 }