[chronojump] Fixing probem on continue an RProc process with no data

[Xavier de Blas <xaviblas src gnome org>]

commit 769f834c81238b7db4130722e259181d7c2435d5
Author: Xavier de Blas <xaviblas gmail com>
Date:   Tue May 12 16:19:23 2015 +0200

    Fixing probem on continue an RProc process with no data

 src/encoderRProc.cs |   28 ++++++++++++++++++++++------
 1 files changed, 22 insertions(+), 6 deletions(-)
---
diff --git a/src/encoderRProc.cs b/src/encoderRProc.cs
index 2d845a5..8879520 100644
--- a/src/encoderRProc.cs
+++ b/src/encoderRProc.cs
@@ -47,8 +47,7 @@ public abstract class EncoderRProc
                        
                if(isRunning()) {
                        LogB.Debug("calling continue");
-                       continueProcess();
-
+                       ok = continueProcess();
                } else {
                        LogB.Debug("calling start");
                        ok = startProcess();
@@ -123,9 +122,18 @@ public abstract class EncoderRProc
                return true;
        }
        
-       protected virtual void continueProcess() {
+       protected virtual bool continueProcess() 
+       {
                LogB.Debug("sending continue process");
-               p.StandardInput.WriteLine("C");
+               //try/catch because sometimes the stdin write gots broken
+               try {
+                       p.StandardInput.WriteLine("C");
+               } catch {
+                       LogB.Debug("calling start because continue process was problematic");
+                       return startProcess();
+               }
+
+               return true;
        }
        
        /*
@@ -384,7 +392,7 @@ public class EncoderRProcAnalyze : EncoderRProc
 
        }
        
-       protected override void continueProcess() 
+       protected override bool continueProcess() 
        {
                //TODO: outputFileCheck creation/deletion here and at startProcess, should be unique
                string outputFileCheck = "";
@@ -409,7 +417,13 @@ public class EncoderRProcAnalyze : EncoderRProc
                        deleteFile(outputFileCheck2);
 
                LogB.Debug("sending continue process");
-               p.StandardInput.WriteLine("C");
+               //try/catch because sometimes the stdin write gots broken
+               try {
+                       p.StandardInput.WriteLine("C");
+               } catch {
+                       LogB.Debug("calling start because continue process was problematic");
+                       return startProcess();
+               }
 
                LogB.Debug("waiting files");
                if(outputFileCheck2 == "")
@@ -417,6 +431,8 @@ public class EncoderRProcAnalyze : EncoderRProc
                else
                        while ( ! ( (fileWritten(outputFileCheck) && fileWritten(outputFileCheck2)) || 
CancelRScript ) );
                LogB.Debug("files written");
+               
+               return true;
        }