From 9b29a7a7008f5607f92117a887d24d3bdafe92b3 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Thu, 10 Apr 2014 01:53:57 +0200
Subject: [PATCH] pixelcache: Add a warning for an invariant that shouldn't
 happen

Pixel caches should be unmapped before being freed and unmapping clears
those variables.
---
 gtk/gtkpixelcache.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/gtk/gtkpixelcache.c b/gtk/gtkpixelcache.c
index 339518bf8a..4ab8bb9549 100644
--- a/gtk/gtkpixelcache.c
+++ b/gtk/gtkpixelcache.c
@@ -69,6 +69,14 @@ _gtk_pixel_cache_free (GtkPixelCache *cache)
   if (cache == NULL)
     return;
 
+  if (cache->timeout_tag ||
+      cache->surface ||
+      cache->surface_dirty)
+    {
+      g_warning ("pixel cache freed that wasn't unmapped: tag %u surface %p sirty %p",
+                 cache->timeout_tag, cache->surface, cache->surface_dirty);
+    }
+
   if (cache->timeout_tag)
     g_source_remove (cache->timeout_tag);
 
-- 
2.30.2