From b87fd489a121b154304653dbf533623089020da7 Mon Sep 17 00:00:00 2001
From: tznind <tznind@dundee.ac.uk>
Date: Thu, 13 Oct 2022 09:52:12 +0100
Subject: [PATCH] Fix locking for the entire RunIdle callback execution

---
 Terminal.Gui/Core/MainLoop.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Terminal.Gui/Core/MainLoop.cs b/Terminal.Gui/Core/MainLoop.cs
index 43789e228..e71367646 100644
--- a/Terminal.Gui/Core/MainLoop.cs
+++ b/Terminal.Gui/Core/MainLoop.cs
@@ -306,9 +306,12 @@ namespace Terminal.Gui {
 
 			Driver.MainIteration ();
 
+			bool runIdle = false;
 			lock (idleHandlersLock) {
-				if (idleHandlers.Count > 0)
-					RunIdle ();
+				runIdle = idleHandlers.Count > 0;
+			}
+			if (runIdle) {
+				RunIdle ();
 			}
 		}