public IDisposable Subscribe <TE>(IObserver <TE> observer)
{
_semaphore.Wait();
var pair = new ObserverPair(observer);
try
{
if (_observers.ContainsKey(typeof(TE)) && _observers[typeof(TE)] is object)
{
_observers[typeof(TE)].Add(pair);
}
else
{
_observers[typeof(TE)] = new List <ObserverPair> {
pair
}
};
}
finally
{
_semaphore.Release();
}
return(new UnSubscriber <TE>(_observers, pair));
}
public UnSubscriber(Dictionary <Type, List <ObserverPair> > observers, ObserverPair observer)
{
_observers = observers;
_observer = observer;
}