Long Polling, Csharp, Dotnet, Programming, Coding.
cts = CancellationTokenSource.CreateLinkedTokenSource(userCt); cts.CancelAfter(TimeSpan.FromSeconds(30)); var timeoutTask = Task.Delay(-1, cts.Token); var itemArrivedTask = itemService.WaitForNewItem(); var completedTask = await Task.WhenAny(itemArrivedTask, timeoutTask); if (completedTask ==