task time out c# code example
Example: task with timeout c#
/// <summary>/// Run an action and kill it when canceling the token/// </summary>/// <param name="action">The action to execute</param>/// <param name="token">The token</param>/// <param name="waitForGracefulTermination">If set, the task will be killed with delay so as to allow the action to end gracefully</param>private static Task RunCancellable(Action action, CancellationToken token, TimeSpan? waitForGracefulTermination=null){ // we need a thread, because Tasks cannot be forcefully stopped var thread = new Thread(new ThreadStart(action)); // we hold the reference to the task so we can check its state Task task = null; task = Task.Run(() => { // task monitoring the token Task.Run(() => { // wait for the token to be canceled token.WaitHandle.WaitOne(); // if we wanted graceful termination we wait // in this case, action needs to know about the token as well and handle the cancellation itself if (waitForGracefulTermination != null) { Thread.Sleep(waitForGracefulTermination.Value); } // if the task has not ended, we kill the thread if (!task.IsCompleted) { thread.Abort(); } }); // simply start the thread (and the action) thread.Start(); // and wait for it to end so we return to the current thread thread.Join(); // throw exception if the token was canceled // this will not be reached unless the thread completes or is aborted token.ThrowIfCancellationRequested(); }, token); return task;}