fix: Fixes libdeflate threading issue

Projects/Server/Compression/Deflate.cs

@@ -20,16 +20,8 @@ namespace Server.Compression;
 
 public static class Deflate
 {
-    public static LibDeflateBinding Standard { get; }
+    [ThreadStatic]
+    private static LibDeflateBinding _standard;
 
-    static Deflate()
-    {
-        Standard = new LibDeflateBinding();
-        AppDomain.CurrentDomain.ProcessExit += CurrentDomain_ProcessExit;
-    }
-
-    private static void CurrentDomain_ProcessExit(object sender, EventArgs e)
-    {
-        Standard.Dispose();
-    }
+    public static LibDeflateBinding Standard => _standard ??= new LibDeflateBinding();
 }

Projects/Server/Main.cs

@@ -25,6 +25,7 @@
 using System.Text.Json;
 using System.Threading;
 using System.Threading.Tasks;
+using Server.Compression;
 using Server.Json;
 using Server.Logging;
 using Server.Network;
@@ -465,6 +466,10 @@ public static void Setup(bool profiling, Assembly applicationAssembly, Process p
 
         Console.CancelKeyPress += Console_CancelKeyPressed;
 
+        // LibDeflate is not thread safe, so we need to create a new instance for each thread
+        var standard = Deflate.Standard;
+        AppDomain.CurrentDomain.ProcessExit += (_, _) => standard.Dispose();
+
         ServerConfiguration.Load();
 
         logger.Information("Running on {Framework}", RuntimeInformation.FrameworkDescription);