public void ItemRemoved(object key, object item)
{
if (item == _target)
{
TimeBasedExpirationPolicy tgt;
ActiveTimePolicies.TryRemove(key, out tgt);
}
}
static void CheckExpiration()
{
while (true)
{
ThreadFactory.Sleep(Thread.CurrentThread, ExpirationCheckSleep);
List <TimeBasedExpirationPolicy> keysToRemove = new List <TimeBasedExpirationPolicy>();
foreach (TimeBasedExpirationPolicy policy in ActiveTimePolicies.Values)
{
if (policy.ShouldRemove(DateTime.Now))
{
keysToRemove.Add(policy);
}
}
foreach (TimeBasedExpirationPolicy policy in keysToRemove)
{
policy._cacheProvider.Remove(policy._key);
TimeBasedExpirationPolicy tgt;
ActiveTimePolicies.TryRemove(policy._key, out tgt);
}
}
}
public void ItemAdded(object key, object item)
{
ActiveTimePolicies.TryAdd(key, this);
}
