From 8068407d2a94cc398c7b0210a6ad0b613e5a2cfc Mon Sep 17 00:00:00 2001
From: Lucas <lucas.haug@ipvs.uni-stuttgart.de>
Date: Thu, 11 Jul 2024 11:17:28 +0200
Subject: [PATCH] Fixed bug with negative offsets

---
 src/inet/queueing/gate/PeriodicGate.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/inet/queueing/gate/PeriodicGate.cc b/src/inet/queueing/gate/PeriodicGate.cc
index 2e6e343cb74..a17175af1e1 100644
--- a/src/inet/queueing/gate/PeriodicGate.cc
+++ b/src/inet/queueing/gate/PeriodicGate.cc
@@ -96,7 +96,11 @@ void PeriodicGate::initializeGating()
 {
     index = 0;
     isOpen_ = initiallyOpen;
-    offset.setRaw(totalDuration != 0 ? initialOffset.raw() % totalDuration.raw() : 0);
+    if (totalDuration.raw() == 0) {
+        offset.setRaw(0);
+    } else {
+        offset.setRaw((initialOffset.raw() % totalDuration.raw() + totalDuration.raw()) % totalDuration.raw());
+    }
     while (offset > CLOCKTIME_ZERO) {
         clocktime_t duration = durations[index];
         if (offset >= duration) {