public void UnregisterChangeCallback(ScopeTokenRegistration registration)
{
lock (_registrations)
if (_registrations.Remove(registration) && _registrations.Count == 0)
{
_owner.RemoveScopeToken(_key);
}
}
public IDisposable RegisterChangeCallback(Action <object> callback, object state)
{
lock (_registrations)
if (!_hasChanged)
{
var registration = new ScopeTokenRegistration(this, callback, state);
_registrations.Add(registration);
return(registration);
}
else
{
return(Disposable.Empty);
}
}
