From bbbe83a3a2a9071ea48d0e25a4638fee5cb3ea30 Mon Sep 17 00:00:00 2001
From: Tom Black <blacktm@gmail.com>
Date: Wed, 7 Oct 2015 00:33:16 -0400
Subject: Fixing window hang

Window and media subsystems were being closed too early after `show`,
causing Ruby garbage collection to hang when freeing objects relying on
those systems.
---
 ext/ruby2d/ruby2d.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ext/ruby2d/ruby2d.c b/ext/ruby2d/ruby2d.c
index 1c4442a..625215a 100644
--- a/ext/ruby2d/ruby2d.c
+++ b/ext/ruby2d/ruby2d.c
@@ -26,6 +26,9 @@ struct sound_data {
   Sound snd;
 };
 
+static void close_window() {
+  S2D_Close(window);
+}
 
 static void free_image(struct image_data *data) {
   S2D_FreeImage(data->img);
@@ -212,6 +215,7 @@ static VALUE ruby2d_show(VALUE s) {
   
   S2D_Show(window);
   
+  atexit(close_window);
   return Qnil;
 }
 
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