sendasync

来源： https://stackoverflow.com/questions/56029988/sendasync-is-blocking-ui-thread

来源： https://stackoverflow.com/questions/56029988/sendasync-is-blocking-ui-thread

问题 I've two SocketAsyncEventArgs per Client like this: void Accepted(object s, SocketAsyncEventArgs e) { e.Completed -= Accepted; Client c = new Client() { SendArgs = e, RecvArgs = new SocketAsyncEventArgs() }; c.RecvArgs.AcceptSocket = e.AcceptSocket; c.RecvArgs.Completed += Received; c.SendArgs.Completed += Sent; SetBuffer(c.RecvArgs, bufferLength); c.RecvArgs.AcceptSocket.ReceiveAsync(c.RecvArgs); Accept(); } When Client sends data, Received function gets called and in Received function I'm

问题 I am new to programing and can not find or know what to search for to debug the thread that is started with the SendAsync Method. The code works good using the Send Method but when using SendAsync it goes to waiter.WaitOne() but i never get the callback (I think thats what its called) to myPing_PingCompleted. So two questions how do I debug the code when it starts a new thread. I am using C# Express so it may not have all the debuging tools as VS. and any idea where I am going wrong in my

问题 I'm writing a code that sends 2 codes to 2 different emails (to check that owner of both emails are the same person). And I got the error: System.InvalidOperationException: An asynchronous call is already in progress. It must be completed or canceled before you can call this method. Well I can simply avoid this error sending the second email after the sending of the first one completes, but the question is that if so many users at the same time request email sending (forgotten password, email

问题 I am trying to send emails via sendasync. The problem is it doesn't seem to go into the sendcompleted event handler. I added a break point there, but it never triggers. The program just waits at my semaphore. Any ideas? The program is a windows forms app. if (send) { print("Starting to send mail to " + Globalcls.projects[i].name); mailSendSemaphore = new Semaphore(0, 1); System.Net.Mail.MailMessage msg = new System.Net.Mail.MailMessage(); msg.To.Add(Globalcls.projects[i].email); msg.From =

问题 I have a web project (C#, MVC5 but no WebAPI) and a simple HTTP REST client that is calling an external REST service and acquires an accessToken etcing. I want to check the response from all my Get/PostAsync calls for statusCode 401 but I see that I can only override the SendAsync method when implementing the DelegatingHandler . class CustomDelegatingHandler : DelegatingHandler { async protected override Task<HttpResponseMessage> SendAsync( HttpRequestMessage request, CancellationToken

问题 When I use SmtpClient's SendAsync to send email, how do I dispose the smtpclient instance correctly? Let's say: MailMessage mail = new System.Net.Mail.MailMessage() { Body = MailBody.ToString(), IsBodyHtml = true, From = new MailAddress(FromEmail, FromEmailTitle), Subject = MailSubject }; mail.To.Add(new MailAddress(i.Email, "")); SmtpClient sc = new SmtpClient(SmtpServerAddress); //Add SendAsyncCallback to SendCompleted sc.SendCompleted += new SendCompletedEventHandler(SendAsyncCallback); /

问题 I found this peculiar behaviour of UWP HttpClient. For a simple get call of WCF service is taking time almost more than 100 seconds(happens for first few calls). I observed that the same service is way too faster in iOS and rest client. Attaching the code, Please let me know, if i doing wrong. HttpClientHandler clientHandler = new HttpClientHandler(); clientHandler.UseCookies = true; var client = new HttpClient(clientHandler); client.Timeout = TimeSpan.FromSeconds(100); client

问题 private void ProcessReceive(SocketAsyncEventArgs e) { // Check if the remote host closed the connection. if (e.BytesTransferred > 0) { if (e.SocketError == SocketError.Success) { Token token = e.UserToken as Token; token.SetData(e); Socket s = token.Connection; if (s.Available == 0) { Boolean willRaiseEvent = false; // GET DATA TO SEND byte[] sendBuffer = token.GetRetBuffer(); // this.bufferSize IS SocketAsyncEventArgs buffer SIZE byte[] tempBuffer = new byte[this.bufferSize]; int offset = 0;