public static IOIterator <T> AddMatchingNotification <T> (IONotificationPort notifyPort, NotificationType notificationType,
NSDictionary matchingDictionary, MatchingCallback <T> callback) where T : IOService
{
var notificationTypeString = notificationType.GetKey();
IOServiceMatchingCallback nativeCallback = (refCon, iteratorRef) =>
{
var iterator = MarshalNativeObject <IOIterator <T> > (iteratorRef, false);
callback.Invoke(iterator);
};
callbackStore.Add(nativeCallback);
IntPtr iteratorRef2;
CFType.Retain(matchingDictionary.Handle);
var result = IOServiceAddMatchingNotification(notifyPort.Handle, notificationTypeString, matchingDictionary.Handle,
nativeCallback, IntPtr.Zero, out iteratorRef2);
ThrowIfError(result);
var iterator2 = new IOIterator <T> (iteratorRef2, true);
iterator2.Disposed += (sender, e) => callbackStore.Remove(nativeCallback);
return(iterator2);
}