From cc64ead1ed59123faf6d6f37ae2aa1a51e4af4fe Mon Sep 17 00:00:00 2001
From: Oliver <480930+rivo@users.noreply.github.com>
Date: Fri, 27 Jul 2018 16:30:50 +0200
Subject: [PATCH] Made Application.Draw() thread-safe (for real this time).
 Fixes #136

---
 application.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/application.go b/application.go
index f893578..bd4c5ac 100644
--- a/application.go
+++ b/application.go
@@ -227,13 +227,14 @@ func (a *Application) Suspend(f func()) bool {
 // Draw refreshes the screen. It calls the Draw() function of the application's
 // root primitive and then syncs the screen buffer.
 func (a *Application) Draw() *Application {
-	a.RLock()
+	a.Lock()
+	defer a.Unlock()
+
 	screen := a.screen
 	root := a.root
 	fullscreen := a.rootFullscreen
 	before := a.beforeDraw
 	after := a.afterDraw
-	a.RUnlock()
 
 	// Maybe we're not ready yet or not anymore.
 	if screen == nil || root == nil {