/// <summary>Initializes a new instance of the <see cref="WeakValueDictionary{TKey,TValue}" /> class.</summary>
/// <param name="capacity">Initial capacity.</param>
public WeakValueDictionary(int capacity)
{
_pool = new RequestReturnPool <WeakReference>(capacity, () => new WeakReference(null));
_inner = new Dictionary <TKey, WeakReference>(capacity);
_garbageCollectionSentinel = new WeakReference(new object());
_deadKeys = new Queue <KeyValuePair <TKey, WeakReference> >();
}
private RequestReturnPool <WeakReference> GetPool()
{
return(_pool ?? (_pool = new RequestReturnPool <WeakReference>(_inner.Count, () => new WeakReference(null))));
}