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This article mainly explains "what is the role of ClientCnxn EventThread in zk". The explanation in the article is simple and clear, easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the role of ClientCnxn EventThread in zk"?

EventThread handles event callback Callback (processing result) packet

UML

Add events and related listeners to the waiting queue private void queueEvent (WatchedEvent event, Set materializedWatchers) {if (event.getType () = = EventType.None & & sessionState = = event.getState ()) {return;} sessionState = event.getState (); final Set watchers; if (materializedWatchers = = null) {/ / materialize the watchers based on the event watchers = watcher.materialize (event.getState (), event.getType (), event.getPath ()) } else {watchers = new HashSet (); watchers.addAll (materializedWatchers);} / / set watcherSetEventPair WatcherSetEventPair pair = new WatcherSetEventPair (watchers, event); / / queue the pair (watch set & event) for later processing waitingEvents.add (pair);} deal with packetpublic void queuePacket (Packet packet) {if (wasKilled) {synchronized (waitingEvents) {if (isRunning) {waitingEvents.add (packet) } else {processEvent (packet);} else {waitingEvents.add (packet) }} Thank you for your reading, the above is the content of "what is the role of ClientCnxn EventThread in zk". After the study of this article, I believe you have a deeper understanding of the role of ClientCnxn EventThread in zk, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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