internal static void ItemRemovedCallback(string key, object value, CacheItemRemovedReason reason)
{
if (reason == CacheItemRemovedReason.Expired)
{
CacheEntry cacheEntry = CacheLockbox.GetCacheEntry(key);
if (cacheEntry.LastUse.Add(cacheEntry.SlidingExpiration) > DateTime.Now)
{
_cache.Insert(key, value, null, DateTime.Now.Add(TimeSpan.FromSeconds(30.0)), TimeSpan.Zero, CacheItemPriority.Low, null);
ThreadPool.QueueUserWorkItem(delegate(object o) {
string _key = o.ToString();
lock (CacheLockbox.GetInternalLock(_key))
{
InternalCallback(_key);
}
}, key);
}
}
}
internal static object InternalCallback(string key)
{
CacheEntry cacheEntry = CacheLockbox.GetCacheEntry(key);
if (cacheEntry == null)
{
return(null);
}
CacheLoaderDelegate cacheLoader = cacheEntry.CacheLoader;
if (cacheLoader == null)
{
return(null);
}
object obj2 = null;
try
{
obj2 = cacheLoader();
}
catch (Exception exception)
{
if (_cacheLoaderErrorDelegate != null)
{
try
{
_cacheLoaderErrorDelegate(key, exception);
}
catch
{
}
}
}
if (obj2 != null)
{
Insert(key, obj2, null, (int)cacheEntry.RefreshInterval.TotalSeconds, CacheItemPriority.Normal, new CacheItemRemovedCallback(TCache.ItemRemovedCallback));
CacheLockbox.UpdateCacheEntry(key, DateTime.Now);
}
return(obj2);
}