예제 #1
0
        public static int DllMain(string arg)
        {
            try
            {
                Args args = new Args(arg);

                SharedRuntimeState.Initialize((IntPtr)args.GetInt64("RuntimeState"));
                Runtime.AssemblyContext.Initialize();

                mainAssemblyPath = args.GetString("MainAssembly");
                if (!string.IsNullOrEmpty(mainAssemblyPath))
                {
                    if (string.IsNullOrEmpty(mainAssemblyPath) || !File.Exists(mainAssemblyPath))
                    {
                        return (int)AssemblyLoaderError.MainAssemblyNotFound;
                    }
                    mainAssemblyDirectory = Path.GetDirectoryName(mainAssemblyPath);
                }
                else
                {
                    return (int)AssemblyLoaderError.MainAssemblyPathNotProvided;
                }

                IntPtr addTickerAddr = (IntPtr)args.GetInt64("AddTicker");
                IntPtr isInGameThreadAddr = (IntPtr)args.GetInt64("IsInGameThread");
                if (addTickerAddr == IntPtr.Zero || isInGameThreadAddr == IntPtr.Zero)
                {
                    return (int)AssemblyLoaderError.GameThreadHelpersNull;
                }
                GameThreadHelper.Init(addTickerAddr, isInGameThreadAddr, OnRuntimeChanged);

                Debug.Assert(GameThreadHelper.IsInGameThread());

                entryPointArg = arg;

                string currentAssemblyPath = Assembly.GetExecutingAssembly().Location;
                string currentAssemblyFileName = Path.GetFileNameWithoutExtension(currentAssemblyPath);
                currentAssemblyDirectory = Path.GetDirectoryName(currentAssemblyPath);

                if (!IsSameOrSubDirectory(currentAssemblyDirectory, mainAssemblyDirectory))
                {
                    return (int)AssemblyLoaderError.MainAssemblyPathNotProvided;
                }

                // If there is already a loaded runtime only do a pre-load
                if (SharedRuntimeState.GetLoadedRuntimes() != EDotNetRuntime.None)
                {
                    Debug.Assert(mainContextRef.IsInvalid);

                    // Make sure the main assembly path exists
                    if (!File.Exists(mainAssemblyPath))
                    {
                        return (int)AssemblyLoaderError.LoadFailed;
                    }

                    // Make sure we are using assmbly contexts loadding otherwise hotreload wont work which defeats the purpose of
                    // using multiple runtimes
                    if (LoadAssemblyWithoutContexts)
                    {
                        return (int)AssemblyLoaderError.LoadFailed;
                    }

                    // Preload now and then do a full load when NextRuntime is set to this runtime type
                    PreloadNextContext();

                    // Watch for assembly changes (the paths should have been set up by the full load in the other runtime)
                    UpdateAssemblyWatchers();

                    return 0;
                }

                unsafe
                {
                    SharedRuntimeState.Instance->ActiveRuntime = SharedRuntimeState.CurrentRuntime;
                }

                bool loaded;
                if (LoadAssemblyWithoutContexts)
                {
                    loaded = LoadWithoutUsingContexts();
                }
                else
                {
                    loaded = ReloadMainContext();
                }
                if (!loaded)
                {
                    unsafe
                    {
                        SharedRuntimeState.Instance->ActiveRuntime = EDotNetRuntime.None;
                    }
                    return (int)AssemblyLoaderError.LoadFailed;
                }
            }
            catch (Exception e)
            {
                string exceptionStr = "Entry point exception (Loader): " + e;
                if (SharedRuntimeState.Initialized)
                {
                    SharedRuntimeState.LogError(exceptionStr);
                    SharedRuntimeState.MessageBox(exceptionStr, errorMsgBoxTitle);
                }
                return (int)AssemblyLoaderError.Exception;
            }

            return 0;
        }