From 61f41e6301e859816a7b1b624dea83379f1dc7eb Mon Sep 17 00:00:00 2001
From: Herman K <herman@niflheimr.is>
Date: Fri, 8 Sep 2023 18:15:56 +0300
Subject: [PATCH] creating only one gtk thread (#12830)

Co-authored-by: Herman Kirshin <herman.kirshin@jetbrains.com>
---
 src/Avalonia.X11/NativeDialogs/Gtk.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.X11/NativeDialogs/Gtk.cs b/src/Avalonia.X11/NativeDialogs/Gtk.cs
index 3f225dc6bc..14bd1142dd 100644
--- a/src/Avalonia.X11/NativeDialogs/Gtk.cs
+++ b/src/Avalonia.X11/NativeDialogs/Gtk.cs
@@ -256,9 +256,13 @@ namespace Avalonia.X11.NativeDialogs
 
         public static IntPtr GetForeignWindow(IntPtr xid) => gdk_x11_window_foreign_new_for_display(s_display, xid);
 
+        static object s_startGtkLock = new();
+        static Task<bool> s_startGtkTask;
+
         public static Task<bool> StartGtk()
         {
-            return StartGtkCore();
+            lock (s_startGtkLock)
+                return s_startGtkTask ??= StartGtkCore();
         }
 
         private static void GtkThread(TaskCompletionSource<bool> tcs)