public void CancelAfter(int millisecondsDelay)
{
if (millisecondsDelay < -1)
{
throw new ArgumentOutOfRangeException("millisecondsDelay");
}
CheckDisposed();
if (canceled || millisecondsDelay == Timeout.Infinite)
{
return;
}
if (timer == null)
{
// Have to be carefull not to create secondary background timer
var t = new Timer(timer_callback, this, Timeout.Infinite, Timeout.Infinite);
if (AotInterlocked.CompareExchange(ref timer, t, null) != null)
{
t.Dispose();
}
}
timer.Change(millisecondsDelay, Timeout.Infinite);
}
void UnregisterLinkedTokens()
{
var registrations = AotInterlocked.Exchange(ref linkedTokens, null);
if (registrations == null)
{
return;
}
foreach (var linked in registrations)
{
linked.Dispose();
}
}
