request-cancelling

来源： https://stackoverflow.com/questions/64205147/addscoped-dependency-with-a-cancellationtoke

来源： https://stackoverflow.com/questions/64205147/addscoped-dependency-with-a-cancellationtoke

问题 I have a home page on a website (ASP.NET 4.0 C#) which loads a lot of data every time it is accessed (basically a dashboard). This can (depending on the user) take a while to load, so I broke each section into update panels and load them separately so that the user can see it loading and not just think it the page has frozen. However this presents new issues because if the user does not want to wait and clicks on the navigation menu (or a link) to a different page, they have to wait until the

问题 If I do this in a subclass of UIView: [self performSelector:@selector(doSomething) withObject:nil afterDelay:5]; Then cancel it like this (I've tried both versions): [[NSRunLoop currentRunLoop] cancelPerformSelectorsWithTarget:self]; //[[NSRunLoop mainRunLoop] cancelPerformSelectorsWithTarget:self]; The "doSomething" method still gets called. What am I doing wrong? 回答1: In the NSObject class reference: cancelPreviousPerformRequestsWithTarget:selector:object: Cancels perform requests

问题 When a TCP connection gets cancelled by the client while making a HTTP request, I'd like to stop doing any work on the server and return an empty response. What HTTP status code should such a response return? 回答1: To be consistent I would suggest 400 Bad Request now if your backend apps are capable of identifying when the client gets disconnected or if you reject or close the connection, probably you could return Nginx' non-standard code 499 or 444. 499 Client Closed Request Used when the

问题 I have a WCF function that is executing long time, so I call the function in UI with backgraundworker... I want to give a feature to cancel the execution, so I abort IComunicationObject, the problem is that Service execution is not stoping, Is there any way to stop Service execution in this case? 回答1: You may not need a BackgroundWorker. You can either make the operation IsOneWay, or implement the asynchronous pattern. To prevent threading issues, consider using the SynchronizationContext.

问题 When a pending HTTP request is cancelled by a client/browser it seems that Node with Express continues to process the request. For intensive requests, the CPU is still being kept busy with unnecessary requests. Is there a way to ask Node.js/Express to kill/stop these pending requests that are requested to be cancelled? It becomes particularly useful given that since AngularJS 1.5 HTTP request are easily cancellable by calling $cancelRequest() on $http / $resource objects. Such cancellations

问题 My web app must process and serve a lot of data to display certain pages. Sometimes, the user closes or refreshes a page while the server is still busy processing it. This means the server will continue to process data for several minutes only to send it to a client who is no longer listening. Is it possible to detect that the connection has been broken, and react to it? In this particular project, we're using Django and NginX, or Apache. I assumed this is possible because the Django

问题 I call obackgroundworker.CancelAsync(); on a background worker currently doing some work in another thread and then using while (obackgroundworker.IsBusy == true) to wait for it to finish before quitting the application (in case the user changes their mind while the thread is away processing and I want to close down cleanly) The flat for cancellation pending is set to true correctly but the thread doesn't quit, in the worker thread i have: backgroundworker obackgroundworker =

问题 i have a page on which there an event handler attached to an onclick event. when the event fires it passes contents of a textbox to a GET request. since the url is not in the same domain so i create a script tag and and attach the url to its source like this elem.onclick=fire; function fire() { var text=document.getElementById('text').value; var script=document.createElement("script"); script.className="temp"; script.src="some url"+"?param="+text; document.body.appendChild(script); } now if