Shows engines and users in the internal cache.
Object Oriented Interface
public function fireCacheEntry($param);
ipworkssnmp_snmptcptrapmgr_register_callback($res, 2, array($this, 'fireCacheEntry'));
CacheEntry events are triggered by a call to ShowCache. One event is fired for each user and engine. If there are no users for a particular engine, a single event is fired with the engine information, but empty values for user information.