/// <summary>
/// Occurs when the item with the given key is used.
/// </summary>
/// <param name="key">Item key.</param>
private void OnItemUsed(TKey key)
{
int itemIndex = -1;
if (key != null)
{
lock (_lock)
{
itemIndex = Recency.IndexOf(key);
if (itemIndex != 0)
{
Recency.RemoveAt(itemIndex);
Recency.Insert(0, key);
}
}
}
}
/// <summary>
/// Removes the item with the given key.
/// </summary>
/// <param name="key">Item key.</param>
private void RemoveInternal(TKey key)
{
int itemIndex = -1;
TValue removedValue = default(TValue);
if (key != null && ContainsKey(key))
{
lock (_lock)
{
itemIndex = Recency.IndexOf(key);
// Removing from the recency
Recency.RemoveAt(itemIndex);
}
// Removing from the data
Data.TryRemove(key, out removedValue);
}
}
