From 25c6aa4c30dfc00467c122824abe36ae11deda88 Mon Sep 17 00:00:00 2001
From: Pilzinsel64 <pascal.schedel@dr-schneider.com>
Date: Mon, 18 Nov 2024 15:29:51 +0100
Subject: [PATCH] only receive if listening

---
 Pilz.Net/Api/ApiServer.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Pilz.Net/Api/ApiServer.cs b/Pilz.Net/Api/ApiServer.cs
index b98e4d6..425124a 100644
--- a/Pilz.Net/Api/ApiServer.cs
+++ b/Pilz.Net/Api/ApiServer.cs
@@ -80,7 +80,8 @@ public class ApiServer(string apiUrl) : IApiServer
 
     protected void Receive()
     {
-        httpListener?.BeginGetContext(ListenerCallback, null);
+        if (httpListener.IsListening)
+            httpListener?.BeginGetContext(ListenerCallback, null);
     }
 
     protected void ListenerCallback(IAsyncResult result)