@twilio/voice-sdk
Version:
Twilio's JavaScript Voice SDK
89 lines • 6.17 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
/**
* @packageDocumentation
* @internalapi
*/
// @ts-nocheck
// NOTE (csantos): This file was taken directly from twilio-video and has been renamed from JS to TS only.
// It needs to be re-written as part of the overall updating of the files to TS.
var events_1 = require("events");
var Backoff = /** @class */ (function (_super) {
__extends(Backoff, _super);
/**
* Construct a {@link Backoff}.
* @param {object} options
* @property {number} min - Initial timeout in milliseconds [100]
* @property {number} max - Max timeout [10000]
* @property {boolean} jitter - Apply jitter [0]
* @property {number} factor - Multiplication factor for Backoff operation [2]
*/
function Backoff(options) {
var _this = _super.call(this) || this;
Object.defineProperties(_this, {
_attempts: {
value: 0,
writable: true,
},
_duration: {
enumerable: false,
get: function () {
var ms = this._min * Math.pow(this._factor, this._attempts);
if (this._jitter) {
var rand = Math.random();
var deviation = Math.floor(rand * this._jitter * ms);
// tslint:disable-next-line
ms = (Math.floor(rand * 10) & 1) === 0 ? ms - deviation : ms + deviation;
}
// tslint:disable-next-line
return Math.min(ms, this._max) | 0;
},
},
_factor: { value: options.factor || 2 },
_jitter: { value: options.jitter > 0 && options.jitter <= 1 ? options.jitter : 0 },
_max: { value: options.max || 10000 },
_min: { value: options.min || 100 },
_timeoutID: {
value: null,
writable: true,
},
});
return _this;
}
Backoff.prototype.backoff = function () {
var _this = this;
var duration = this._duration;
if (this._timeoutID) {
clearTimeout(this._timeoutID);
this._timeoutID = null;
}
this.emit('backoff', this._attempts, duration);
this._timeoutID = setTimeout(function () {
_this.emit('ready', _this._attempts, duration);
_this._attempts++;
}, duration);
};
Backoff.prototype.reset = function () {
this._attempts = 0;
if (this._timeoutID) {
clearTimeout(this._timeoutID);
this._timeoutID = null;
}
};
return Backoff;
}(events_1.EventEmitter));
exports.default = Backoff;
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