public AsyncManager(SynchronizationContext context) { _context = context ?? SynchronizationContextExtensions.GetSynchronizationContext(); _parameters = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase); _outstandingOperations = new OperationCounter(); _outstandingOperations.Completed += delegate { Finish(); }; }
protected virtual IAsyncResult BeginProcessRequest( HttpContextBase context, AsyncCallback callback, object state) { AppendVersionHeader(context); string controllerName = Context.RouteData.GetRequiredValue <string>("controller"); IControllerFactory factory = Builder.GetControllerFactory(); IController controller = factory.CreateController(Context, controllerName); if (controller == null) { throw Error.CouldNotCreateController(controllerName); } IAsyncController asyncController = (controller as IAsyncController); if (asyncController == null) // synchronous controller { Action action = delegate { try { controller.Execute(Context); } finally { factory.ReleaseController(controller); } }; return(AsyncResultWrapper.BeginSynchronous(callback, state, action, _tag)); } // asynchronous controller BeginInvokeDelegate beginDelegate = delegate(AsyncCallback asyncCallback, object asyncState) { try { return(asyncController.BeginExecute(Context, asyncCallback, asyncState)); } finally { factory.ReleaseController(asyncController); } }; EndInvokeDelegate endDelegate = delegate(IAsyncResult asyncResult) { try { asyncController.EndExecute(asyncResult); } finally { factory.ReleaseController(asyncController); } }; return(AsyncResultWrapper.Begin(AsyncTask.WrapCallbackForSynchronizedExecution(callback, SynchronizationContextExtensions.GetSynchronizationContext()), state, beginDelegate, endDelegate, _tag)); }