From e72fec3110b9a3bddead023b60cee73b0373bf4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Thu, 14 Feb 2013 08:39:56 +0100
Subject: [PATCH] Cache the xcb_connection_t* in connection()

This is for two reasons:
1. Fixes crash on tear-down when XGetXCBConnection returns junk
2. In Qt5 getting the connection is not cheap enough for our uses

REVIEW: 108826
---
 libkwineffects/kwinglobals.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libkwineffects/kwinglobals.h b/libkwineffects/kwinglobals.h
index b1894e59ba..dba432432f 100644
--- a/libkwineffects/kwinglobals.h
+++ b/libkwineffects/kwinglobals.h
@@ -138,7 +138,11 @@ KWIN_EXPORT Display* display()
 inline
 KWIN_EXPORT xcb_connection_t *connection()
 {
-    return XGetXCBConnection(display());
+    static xcb_connection_t *s_con = NULL;
+    if (!s_con) {
+        s_con = XGetXCBConnection(display());
+    }
+    return s_con;
 }
 
 inline