private CachedObjectInfo AddCacheInfo(object key)
{
if (key == null)
{
return(null);
}
if (IsContainCacheInfo(key))
{
return(GetCacheInfo(key));
}
CachedObjectInfo item = new CachedObjectInfo();
item.InitCache(key, mReleaser);
pool.Add(item);
return(item);
}