[chronojump] Finally fix R race condition on win32

[Andoni Morales Alastruey <amorales src gnome org>]

commit dde0567f7883fed6accafa8da8cf74edab31dc52
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Tue Sep 8 13:42:17 2009 +0200

    Finally fix R race condition on win32

 src/stats/main.cs |    2 +-
 src/util.cs       |   10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)
---
diff --git a/src/stats/main.cs b/src/stats/main.cs
index c0bd5dc..1d0c491 100644
--- a/src/stats/main.cs
+++ b/src/stats/main.cs
@@ -1251,7 +1251,7 @@ public class Stat
 
 		//fileName = System.IO.Path.Combine(Path.GetTempPath(), fileName);
 
-		string rScript = System.IO.Path.Combine(Path.GetTempPath(), Constants.FileNameRScript);
+		string rScript = System.IO.Path.Combine(Path.GetTempPath(), graphNum+Constants.FileNameRScript);
 		TextWriter writer = File.CreateText(rScript);
 		writer.Write(rString);
 		writer.Flush();
diff --git a/src/util.cs b/src/util.cs
index 6d27907..7da2c09 100644
--- a/src/util.cs
+++ b/src/util.cs
@@ -730,11 +730,14 @@ public class Util
 
 	public static void RunRScript(string rScript){
 		ProcessStartInfo pinfo;
-                Process r;
+        Process r;
 		string rBin="R";
 		//If output file is not given, R will try to write in the running folder
 		//in which we may haven't got permissions
-		string outputFile = System.IO.Path.Combine(Path.GetTempPath(), Constants.FileNameRScript+".Rout");
+		string outputFile = rScript+".Rout";
+		
+		if (File.Exists(outputFile))
+			File.Delete(outputFile);
  
 		if (IsWindows())
 			rBin=System.IO.Path.Combine(GetPrefixDir(), "bin/R.exe");
@@ -748,7 +751,8 @@ public class Util
 		r = new Process();
 		r.StartInfo = pinfo;
 		r.Start();
-		r.WaitForExit();				
+		r.WaitForExit();
+		while (!File.Exists(outputFile));				
 	}
 /*
  * currently not used, we copy the assemblies now