Fix a Race Condition if a disconnect were to happen during processing…

… loop
mbbsemu · Mar 14, 2022 · bb56c67 · bb56c67
1 parent a983417
commit bb56c67
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/MBBSEmu/HostProcess/ExportedModules/ExportedModuleBase.cs b/MBBSEmu/HostProcess/ExportedModules/ExportedModuleBase.cs
@@ -681,7 +681,11 @@ private protected ReadOnlySpan<byte> ProcessTextVariables(ReadOnlySpan<byte> out
 
             var txtvarsFound = _textVariableService.ExtractVariableDefinitions(outputBuffer);
 
-            var txtvarDictionary = ChannelDictionary[ChannelNumber].SessionVariables;
+            //This can happen if a channel disconnects during the processing of the main loop
+            if (!ChannelDictionary.TryGetValue(ChannelNumber, out var channelSession))
+                return outputBuffer;
+
+            var txtvarDictionary = channelSession.SessionVariables;
 
             //Get Their Values
             var txtvarMemoryBase = Module.Memory.GetVariablePointer("TXTVARS");