(77d1794a) Tester's build January 10th, 2020

Libraries/Facepunch.Steamworks/Callbacks/Callback.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Runtime.InteropServices;
+using System.Collections.Generic;
+using Steamworks.Data;
+
+namespace Steamworks
+{
+	[StructLayout( LayoutKind.Sequential )]
+    internal partial class Callback
+    {
+		[UnmanagedFunctionPointer( CallingConvention.ThisCall )]
+		public delegate void Run( IntPtr thisptr, IntPtr pvParam );
+
+		[UnmanagedFunctionPointer( CallingConvention.ThisCall )]
+		public delegate void RunCall( IntPtr thisptr, IntPtr pvParam, bool bIOFailure, SteamAPICall_t hSteamAPICall );
+
+		[UnmanagedFunctionPointer( CallingConvention.ThisCall )]
+		public delegate int GetCallbackSizeBytes( IntPtr thisptr );
+
+		internal enum Flags : byte
+        {
+            Registered = 0x01,
+            GameServer = 0x02
+        }
+
+        public IntPtr vTablePtr;
+        public byte CallbackFlags;
+        public int CallbackId;
+
+		//
+		// These are functions that are on CCallback but are never called
+		// We could just send a IntPtr.Zero but it's probably safer to throw a 
+		// big apeshit message if steam changes its behaviour at some point
+		//
+		[MonoPInvokeCallback]
+		internal static void RunStub( IntPtr self, IntPtr param, bool failure, SteamAPICall_t call ) =>
+			throw new System.Exception( "Something changed in the Steam API and now CCallbackBack is calling the CallResult function [Run( void *pvParam, bool bIOFailure, SteamAPICall_t hSteamAPICall )]" );
+
+		[MonoPInvokeCallback]
+		internal static int SizeStub( IntPtr self ) =>
+			throw new System.Exception( "Something changed in the Steam API and now CCallbackBack is calling the GetSize function [GetCallbackSizeBytes()]" );
+	};
+}