node-rdkafka-imhoff

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>JSDoc: Source: tools/ref-counter.js</title> <script src="scripts/prettify/prettify.js"> </script> <script src="scripts/prettify/lang-css.js"> </script>  <link type="text/css" rel="stylesheet" href="styles/prettify.css"> <link type="text/css" rel="stylesheet" href="toolkit/css/toolkit/bnet-responsive.min.css"> <link type="text/css" rel="stylesheet" href="styles/main.css"> </head> <body>  <div class="navbar-static"> <header class="navbar header"> <div class="grid-container"> <div class="grid-25"> <a class="brand mark" href="index.html"> Source: tools/ref-counter.js <span class="tag">3.6.11</span> </a> </div> <div class="grid-75"> <ul class="nav navbar-nav navbar-right"> <li class="dropdown"><a class="dropdown-toggle" role="button" data-toggle="dropdown" href="#" onclick="return false;">Classes</a><ul class="dropdown-menu" role="menu"><li><a href="AdminClient.html">AdminClient</a></li><li><a href="Client.html">Client</a></li><li><a href="HighLevelProducer.html">HighLevelProducer</a></li><li><a href="KafkaConsumer.html">KafkaConsumer</a></li><li><a href="KafkaConsumerStream.html">KafkaConsumerStream</a></li><li><a href="LibrdKafkaError.html">LibrdKafkaError</a></li><li><a href="Producer.html">Producer</a></li><li><a href="ProducerStream.html">ProducerStream</a></li></ul></li><li class="dropdown"><a class="dropdown-toggle" role="button" data-toggle="dropdown" href="#" onclick="return false;">Events</a><ul class="dropdown-menu" role="menu"><li><a href="Client.html#event:disconnected">disconnected</a></li><li><a href="Client.html#event:ready">ready</a></li><li><a href="HighLevelProducer.html#event:disconnected">disconnected</a></li><li><a href="HighLevelProducer.html#event:ready">ready</a></li><li><a href="KafkaConsumer.html#event:data">data</a></li><li><a href="KafkaConsumer.html#event:disconnected">disconnected</a></li><li><a href="KafkaConsumer.html#event:ready">ready</a></li><li><a href="Producer.html#event:disconnected">disconnected</a></li><li><a href="Producer.html#event:ready">ready</a></li></ul></li><li class="dropdown"><a class="dropdown-toggle" role="button" data-toggle="dropdown" href="#" onclick="return false;">Tutorials</a><ul class="dropdown-menu" role="menu"><li><a href="tutorial-consumer-flow.html">consumer-flow</a></li><li><a href="tutorial-consumer-per-partition.html">consumer-per-partition</a></li><li><a href="tutorial-consumer.html">consumer</a></li><li><a href="tutorial-docker-alpine.html">docker-alpine</a></li><li><a href="tutorial-high-level-producer.html">high-level-producer</a></li><li><a href="tutorial-metadata.html">metadata</a></li><li><a href="tutorial-producer-cluster.html">producer-cluster</a></li><li><a href="tutorial-producer_.html">producer</a></li></ul></li><h3>Global</h3><ul><li><a href="global.html#createAdminClient">createAdminClient</a></li><li><a href="global.html#createSerializer">createSerializer</a></li><li><a href="global.html#RefCounter">RefCounter</a></li><li><a href="global.html#Topic">Topic</a></li><li><a href="global.html#TopicPartition">TopicPartition</a></li></ul> </ul> </div> </div> </header> </div>  <div class="body-content"> <div class="grid-container project-container"> <div class="grid-75 push-25"> <h1>Source: tools/ref-counter.js</h1> <section> <article> <pre class="prettyprint source linenums"><code>/* * node-rdkafka - Node.js wrapper for RdKafka C/C++ library * * Copyright (c) 2016 Blizzard Entertainment * * This software may be modified and distributed under the terms * of the MIT license. See the LICENSE.txt file for details. */ module.exports = RefCounter; /** * Ref counter class. * * Is used to basically determine active/inactive and allow callbacks that * hook into each. * * For the producer, it is used to begin rapid polling after a produce until * the delivery report is dispatched. */ function RefCounter(onActive, onPassive) { this.context = {}; this.onActive = onActive; this.onPassive = onPassive; this.currentValue = 0; this.isRunning = false; } /** * Increment the ref counter */ RefCounter.prototype.increment = function() { this.currentValue += 1; // If current value exceeds 0, activate the start if (this.currentValue > 0 && !this.isRunning) { this.isRunning = true; this.onActive(this.context); } }; /** * Decrement the ref counter */ RefCounter.prototype.decrement = function() { this.currentValue -= 1; if (this.currentValue <= 0 && this.isRunning) { this.isRunning = false; this.onPassive(this.context); } }; </code></pre> </article> </section> </div> <div class="grid-25 pull-75"> <div class="navigation-sidebar"> <ul class="nav nav-list"> <li><a href="javascript: void(0);">Classes</a><ul class="nav nav-list" role="menu"><li><a href="AdminClient.html">AdminClient</a></li><li><a href="Client.html">Client</a></li><li><a href="HighLevelProducer.html">HighLevelProducer</a></li><li><a href="KafkaConsumer.html">KafkaConsumer</a></li><li><a href="KafkaConsumerStream.html">KafkaConsumerStream</a></li><li><a href="LibrdKafkaError.html">LibrdKafkaError</a></li><li><a href="Producer.html">Producer</a></li><li><a href="ProducerStream.html">ProducerStream</a></li></ul></li><li><a href="javascript: void(0);">Events</a><ul class="nav nav-list" role="menu"><li><a href="Client.html#event:disconnected">disconnected</a></li><li><a href="Client.html#event:ready">ready</a></li><li><a href="HighLevelProducer.html#event:disconnected">disconnected</a></li><li><a href="HighLevelProducer.html#event:ready">ready</a></li><li><a href="KafkaConsumer.html#event:data">data</a></li><li><a href="KafkaConsumer.html#event:disconnected">disconnected</a></li><li><a href="KafkaConsumer.html#event:ready">ready</a></li><li><a href="Producer.html#event:disconnected">disconnected</a></li><li><a href="Producer.html#event:ready">ready</a></li></ul></li><li><a href="javascript: void(0);">Tutorials</a><ul class="nav nav-list" role="menu"><li><a href="tutorial-consumer-flow.html">consumer-flow</a></li><li><a href="tutorial-consumer-per-partition.html">consumer-per-partition</a></li><li><a href="tutorial-consumer.html">consumer</a></li><li><a href="tutorial-docker-alpine.html">docker-alpine</a></li><li><a href="tutorial-high-level-producer.html">high-level-producer</a></li><li><a href="tutorial-metadata.html">metadata</a></li><li><a href="tutorial-producer-cluster.html">producer-cluster</a></li><li><a href="tutorial-producer_.html">producer</a></li></ul></li><h3>Global</h3><ul><li><a href="global.html#createAdminClient">createAdminClient</a></li><li><a href="global.html#createSerializer">createSerializer</a></li><li><a href="global.html#RefCounter">RefCounter</a></li><li><a href="global.html#Topic">Topic</a></li><li><a href="global.html#TopicPartition">TopicPartition</a></li></ul> </ul>  </div> </div> </div> </div> </div>  <br class="clear">  <footer class="footer"> <div class="grid-container"> <div class="footer-content"> <div class="grid-75"> <div class="legal"> Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc </a> on Thu Jan 11 2024 10:36:33 GMT+0100 (Central European Standard Time) </div> </div> <div class="grid-25"> <span class="blizzard">Blizzard® Entertainment</span> </div> </div> </div> </footer>  <script> prettyPrint(); </script> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script> <script src="toolkit/js/toolkit/toolkit.min.js"> </script> </body> </html>