public void AddOrLockKey(TKey key, TValue value, out TValue valueAddedOrLocked)
{
CacheEntry <TValue> cacheEntry = null;
valueAddedOrLocked = value;
CacheEntry <TValue> cacheEntry1 = new CacheEntry <TValue>(value);
using (WriterLock writerLock = new WriterLock(this.readerWriterLock))
{
if (!this.cache.TryGetValue(key, out cacheEntry))
{
if (this.cache.Count < base.MaxCacheSize)
{
this.cache.Add(key, cacheEntry1);
valueAddedOrLocked = value;
}
else
{
object[] maxCacheSize = new object[1];
maxCacheSize[0] = base.MaxCacheSize;
throw new OverflowException(ExceptionHelpers.GetExceptionMessage(Resources.CannotAddMoreToCache, maxCacheSize));
}
}
else
{
cacheEntry.Lock(out valueAddedOrLocked);
}
}
}
public bool TryRemove(TKey key)
{
bool flag;
using (WriterLock writerLock = new WriterLock(this.readerWriterLock))
{
if (this.cache.ContainsKey(key))
{
this.cache.Remove(key);
flag = true;
}
else
{
flag = false;
}
}
return(flag);
}
public override void DoCleanup(DateTime checkPoint)
{
using (WriterLock writerLock = new WriterLock(this.readerWriterLock))
{
List <TKey> tKeys = new List <TKey>();
foreach (TKey key in this.cache.Keys)
{
CacheEntry <TValue> item = this.cache[key];
if (!this.CanItemBeRemoved(item, checkPoint))
{
continue;
}
tKeys.Add(key);
}
foreach (TKey tKey in tKeys)
{
CacheEntry <TValue> cacheEntry = this.cache[tKey];
this.cache.Remove(tKey);
cacheEntry.Dispose();
}
}
}
