first commit

wangzhibo

2026-05-09 53418655c061ac26f66058253f39200aced1ab1d

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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;