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node_modules/backoff/lib/strategy/fibonacci.js

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+//      Copyright (c) 2012 Mathieu Turcotte
+//      Licensed under the MIT license.
+
+var util = require('util');
+
+var BackoffStrategy = require('./strategy');
+
+// Fibonacci backoff strategy.
+function FibonacciBackoffStrategy(options) {
+    BackoffStrategy.call(this, options);
+    this.backoffDelay_ = 0;
+    this.nextBackoffDelay_ = this.getInitialDelay();
+}
+util.inherits(FibonacciBackoffStrategy, BackoffStrategy);
+
+FibonacciBackoffStrategy.prototype.next_ = function() {
+    var backoffDelay = Math.min(this.nextBackoffDelay_, this.getMaxDelay());
+    this.nextBackoffDelay_ += this.backoffDelay_;
+    this.backoffDelay_ = backoffDelay;
+    return backoffDelay;
+};
+
+FibonacciBackoffStrategy.prototype.reset_ = function() {
+    this.nextBackoffDelay_ = this.getInitialDelay();
+    this.backoffDelay_ = 0;
+};
+
+module.exports = FibonacciBackoffStrategy;