public IDisposable Subscribe(IObserver <T> observer)
{
lock (syncObject)
{
onNext += observer.OnNext;
onError += observer.OnError;
onCompleted += observer.OnCompleted;
}
return(new EventObserverCollectionHandle(this, observer));
}
private void Unsubscribe(IObserver <T> observer)
{
lock (syncObject)
{
// ReSharper disable DelegateSubtraction
onNext -= observer.OnNext;
onError -= observer.OnError;
onCompleted -= observer.OnCompleted;
// ReSharper restore DelegateSubtraction
}
}
public void UnsubscribeAll(bool sendOnCompleted)
{
var curCompleted = onCompleted;
lock (syncObject)
{
onNext = null;
onError = null;
onCompleted = null;
}
if (sendOnCompleted)
{
curCompleted?.Invoke();
}
}
