From 07f95ae652a6c1bd1bfde55f5ca773efca10a8ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaakko=20Ker=C3=A4nen?= <jaakko.keranen@iki.fi>
Date: Sat, 23 Nov 2013 18:14:04 +0200
Subject: [PATCH] Client|LogWidget: Avoid a race condition in the log sink

It was possible that when entries are added into the MemoryLogSink,
there was a situation where an invalid index was accessed (likely
due to a purge occurring in the background).
---
 doomsday/client/src/ui/widgets/logwidget.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doomsday/client/src/ui/widgets/logwidget.cpp b/doomsday/client/src/ui/widgets/logwidget.cpp
index 0169ba059a..330dff39ca 100644
--- a/doomsday/client/src/ui/widgets/logwidget.cpp
+++ b/doomsday/client/src/ui/widgets/logwidget.cpp
@@ -242,6 +242,8 @@ public Font::RichFormat::IStyle
          */
         void beginWorkOnNext()
         {
+            DENG2_GUARD(this);
+
             while(_width > 0 && _next >= 0 && _next < entryCount())
             {
                 LogEntry const &ent = entry(_next);