From 20056c3c099a4c820d980b8abe962d4e18095abc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Levente=20M=C3=A9sz=C3=A1ros?= <levy@omnetpp.org>
Date: Fri, 5 Jan 2024 15:53:09 +0100
Subject: [PATCH] FlowMeasurementRecorder: Don't open packet event file if not
 requested.

---
 src/inet/queueing/flow/FlowMeasurementRecorder.cc | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/inet/queueing/flow/FlowMeasurementRecorder.cc b/src/inet/queueing/flow/FlowMeasurementRecorder.cc
index eca13fa6719..4f1557f1958 100644
--- a/src/inet/queueing/flow/FlowMeasurementRecorder.cc
+++ b/src/inet/queueing/flow/FlowMeasurementRecorder.cc
@@ -25,8 +25,10 @@ static bool matchesString(cMatchExpression& matchExpression, const char *string)
 
 FlowMeasurementRecorder::~FlowMeasurementRecorder()
 {
-    packetEventFile.closeArray();
-    packetEventFile.close();
+    if (measurePacketEvent) {
+        packetEventFile.closeArray();
+        packetEventFile.close();
+    }
 }
 
 cGate *FlowMeasurementRecorder::getRegistrationForwardingGate(cGate *gate)
@@ -59,8 +61,10 @@ void FlowMeasurementRecorder::initialize(int stage)
         measureTransmissionTime = matchesString(measureMatcher, "transmissionTime");
         measurePropagationTime = matchesString(measureMatcher, "propagationTime");
         measurePacketEvent = matchesString(measureMatcher, "packetEvent");
-        packetEventFile.open(par("packetEventFileName").stringValue(), std::ios::out);
-        packetEventFile.openArray();
+        if (measurePacketEvent) {
+            packetEventFile.open(par("packetEventFileName").stringValue(), std::ios::out);
+            packetEventFile.openArray();
+        }
     }
 }