From f4417d49014ec6bcbb4b5dfcbe85c8395bae662f Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 10 Feb 2011 21:46:34 +0000
Subject: [PATCH] Save state to tempfile an rename to avoid losing it in case
 saving fails

---
 source/engineer/engineer.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/engineer/engineer.cpp b/source/engineer/engineer.cpp
index 8db0be6..90cb8eb 100644
--- a/source/engineer/engineer.cpp
+++ b/source/engineer/engineer.cpp
@@ -12,6 +12,7 @@ Distributed under the GPL
 #include <signal.h>
 #include <msp/core/except.h>
 #include <msp/fs/stat.h>
+#include <msp/fs/utils.h>
 #include <msp/gbase/display.h>
 #include <msp/gbase/window.h>
 #include <msp/gl/blend.h>
@@ -131,7 +132,10 @@ Engineer::~Engineer()
 	layout.get_driver().flush();
 
 	if(!options.simulate)
-		layout.save_dynamic(options.state_fn);
+	{
+		layout.save_dynamic(options.state_fn+".tmp");
+		FS::rename(options.state_fn+".tmp", options.state_fn);
+	}
 
 	delete overlay;
 	delete root;
-- 
2.43.0