public static IDisposable Push()
{
var inner = new TraceListener[Trace.Listeners.Count];
Trace.Listeners.CopyTo(inner, 0);
Trace.Listeners.Clear();
var res = new NoDeadlockAssertListener(inner);
Trace.Listeners.Add(res);
return(res);
}
/// <summary>
/// Awaits the provided task on the UI thread. The function will be
/// invoked on the UI thread to ensure the correct context is captured
/// for any await statements within the task.
/// </summary>
/// <remarks>
/// If called from the UI thread, the function is evaluated
/// synchronously.
/// </remarks>
public override T InvokeTaskSync <T>(Func <Task <T> > func, CancellationToken cancellationToken)
{
return(_factory.RunAsync(async() => {
// Convert assertions to exceptions while joining on a task
// or the message box will deadlock.
using (NoDeadlockAssertListener.Push()) {
await _factory.SwitchToMainThreadAsync(cancellationToken);
return await func();
}
}).Join(cancellationToken));
}
