public static void RunWithTimeoutToken(TimeSpan timeout, Func <CancellationToken, Task> asyncOperation)
{
using (Concurrency.TimeoutToken timeoutToken = new Concurrency.TimeoutToken(timeout))
{
CancellationToken token = timeoutToken.Token;
using (Task task = asyncOperation(token))
{
task.Wait(token);
}
}
}
static IEnumerable <Task> _getResponseAsync(TaskCompletionSource <WebResponse> tcs, WebRequest request, TimeSpan timeout)
{
using (var cancellation_token = new Concurrency.TimeoutToken(timeout))
using (var registration_token = cancellation_token.Token.Register(() => { request.Abort(); }))
{
using (var task_get_response = request.GetResponseAsync())
{
yield return(task_get_response);
tcs.SetFromTask(task_get_response);
yield break;
}
}
}
static IEnumerable<Task> _getResponseAsync(TaskCompletionSource<WebResponse> tcs, WebRequest request, TimeSpan timeout)
{
using (var cancellation_token = new Concurrency.TimeoutToken(timeout))
using (var registration_token = cancellation_token.Token.Register(() => { request.Abort(); }))
{
using (var task_get_response = request.GetResponseAsync())
{
yield return task_get_response;
tcs.SetFromTask(task_get_response);
yield break;
}
}
}
