相关疑难解决方法(0)

之前我问过这个问题,但是我打算用一个解决方案来完成这个问题并提出另一个问题.

我正在使用这个类来创建异步WebRequest:

class HttpSocket
{
    public static void MakeRequest(Uri uri, Action<RequestCallbackState> responseCallback)
    {
        WebRequest request = WebRequest.Create(uri);
        request.Proxy = null;

        Task<WebResponse> asyncTask = Task.Factory.FromAsync<WebResponse>(request.BeginGetResponse, request.EndGetResponse, null);
        ThreadPool.RegisterWaitForSingleObject((asyncTask as IAsyncResult).AsyncWaitHandle, new WaitOrTimerCallback(TimeoutCallback), request, 1000, true);
        asyncTask.ContinueWith(task =>
            {
                WebResponse response = task.Result;
                Stream responseStream = response.GetResponseStream();
                responseCallback(new RequestCallbackState(response.GetResponseStream()));
                responseStream.Close();
                response.Close();
            });
    }

    private static void TimeoutCallback(object state, bool timedOut)
    {
        Console.WriteLine("Timeout: " + timedOut);
        if (timedOut)
        {
            Console.WriteLine("Timeout");
            WebRequest request = (WebRequest)state;
            if (state != null)
            {
                request.Abort();
            } …