From 6ba1e9b5b2092b678fd4dacb3d44c41a82c27cf2 Mon Sep 17 00:00:00 2001
From: Jürgen Knödlseder <jurgen.knodlseder@irap.omp.eu>
Date: Mon, 27 Oct 2014 11:25:48 +0100
Subject: [PATCH] Dispose event files only if they exist on disk.

---
 src/ctmodel/ctmodel.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/ctmodel/ctmodel.cpp b/src/ctmodel/ctmodel.cpp
index 18daf9a..1d77402 100644
--- a/src/ctmodel/ctmodel.cpp
+++ b/src/ctmodel/ctmodel.cpp
@@ -273,8 +273,11 @@ void ctmodel::run(void)
             // Fill the cube
             fill_cube(obs);
 
-            // Dispose events to free memory
-            obs->dispose_events();
+            // Dispose events to free memory if event file exists on disk
+            if (obs->eventfile().length() > 0 &&
+                gammalib::file_exists(obs->eventfile())) {
+                obs->dispose_events();
+            }
 
         } // endif: CTA observation found
 
--
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