/// <summary>
/// Constructs an LRUCache with the given maximum size, maximum age, and expiration interval.
/// </summary>
/// <param name="capacity"></param>
/// <param name="useSizing">Whether or not to use explicit object byte sizes.</param>
/// <param name="minSize">Minimum size in bytes in the cache. Below this level and no aging is performed.</param>
/// <param name="maxAge">The maximum age in milliseconds an an entry should live in cache
/// before it's a candidate to be removed.</param>
public LRUCache(int capacity, bool useSizing = false, int minSize = 0, int maxAge = 0)
{
_storage = new C5.HashedLinkedList <KeyValuePair <K, T> >(new KVPComparer <K, T>());
_capacity = capacity;
Size = 0;
if (useSizing)
{
_objectSizes = new Dictionary <K, int>();
}
_maxAge = maxAge;
RequiredReserve = (minSize <= 0 ? 0 : minSize);
_lastAccessedTime = null;
if (_maxAge > 0)
{
_lastAccessedTime = new Dictionary <K, DateTime>();
}
}
/// <summary>
/// Constructs an LRUCache with the given maximum size, maximum age and expiration interval
/// </summary>
/// <param name="capacity"></param>
/// <param name="useSizing">Whether or not to use explicit object sizes</param>
/// <param name="minSize">Minimum size in bytes in the cache. Below this level and no aging is performed.</param>
/// <param name="maxAge">The maximum age in milliseconds an an entry should live in cache
/// before it's a candidate to be removed.</param>
/// <param name="expireInterval">Time in milliseconds between checks for expired entries.</param>
public LRUCache(int capacity, bool useSizing = false, int minSize = 0, int maxAge = 0, int expireInterval = 0)
{
_storage = new C5.HashedLinkedList <KeyValuePair <K, T> >(new KVPComparer <K, T>());
_capacity = capacity;
_totalSize = 0;
if (useSizing)
{
_objectSizes = new Dictionary <K, int>();
_useSizing = true;
}
_maxAge = maxAge;
_minSize = (minSize <= 0 ? 0 : minSize);
_expireInterval = (expireInterval > 0 ? expireInterval : DEFAULT_EXPIRATION_TIMER_INTERVAL);
_lastAccessedTime = null;
if (_maxAge > 0)
{
_lastAccessedTime = new Dictionary <K, DateTime>();
_expireTimer = new Timer(OnTimedEvent, null, _expireInterval, Timeout.Infinite);
}
}
public void C5_HashedLinkedList() => _ = new C5.HashedLinkedList <Int32>();
