public IEnumerator <KeyValuePair <TKey, TItem> > GetEnumerator()
{
return(LockWrapper.ReadLock(_locker, Timeout, () =>
{
return _index.Where(t => t.Value.IsAlive).Select(t => new KeyValuePair <TKey, TItem>(t.Key, (TItem)t.Value.Target)).ToList().GetEnumerator();
}));
}
private Node GetNode(TKey key)
{
return(LockWrapper.ReadLock(_locker, Timeout, () =>
{
WeakReference value;
return (Node)(_index.TryGetValue(key, out value) ? value.Target : null);
}));
}