creating only one gtk thread (#12830)

Co-authored-by: Herman Kirshin <herman.kirshin@jetbrains.com>
3 years ago · 61f41e6301
1 changed files with 5 additions and 1 deletions
--- 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)