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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 /** | 5 /** |
| 6 * @fileoverview | 6 * @fileoverview |
| 7 * The webapp reads the plugin's connection statistics frequently (once per | 7 * The webapp reads the plugin's connection statistics frequently (once per |
| 8 * second). It logs statistics to the server less frequently, to keep | 8 * second). It logs statistics to the server less frequently, to keep |
| 9 * bandwidth and storage costs down. This class bridges that gap, by | 9 * bandwidth and storage costs down. This class bridges that gap, by |
| 10 * accumulating high-frequency numeric data, and providing statistics | 10 * accumulating high-frequency numeric data, and providing statistics |
| 11 * summarising that data. | 11 * summarising that data. |
| 12 */ | 12 */ |
| 13 | 13 |
| 14 'use strict'; | 14 'use strict'; |
| 15 | 15 |
| 16 /** @suppress {duplicate} */ | 16 /** @suppress {duplicate} */ |
| 17 var remoting = remoting || {}; | 17 var remoting = remoting || {}; |
| 18 | 18 |
| 19 /** | 19 /** |
| 20 * @constructor | 20 * @constructor |
| 21 */ | 21 */ |
| 22 remoting.StatsAccumulator = function() { | 22 remoting.StatsAccumulator = function() { |
| 23 /** | 23 /** |
| 24 * A map from names to lists of values. | 24 * A map from names to lists of values. |
| 25 * @private | 25 * @private {Object<string, Array<number>>} |
| 26 * @type Object<string, Array<number>> | |
| 27 */ | 26 */ |
| 28 this.valueLists_ = {}; | 27 this.valueLists_ = {}; |
| 29 | 28 |
| 30 /** | 29 /** |
| 31 * The first time, after this object was most recently initialized or emptied, | 30 * The first time, after this object was most recently initialized or emptied, |
| 32 * at which a value was added to this object. | 31 * at which a value was added to this object. |
| 33 * @private | 32 * @private {?number} |
| 34 * @type {?number} | |
| 35 */ | 33 */ |
| 36 this.timeOfFirstValue_ = null; | 34 this.timeOfFirstValue_ = null; |
| 37 }; | 35 }; |
| 38 | 36 |
| 39 /** | 37 /** |
| 40 * Adds values to this object. | 38 * Adds values to this object. |
| 41 * | 39 * |
| 42 * @param {Object<string, number>} newValues | 40 * @param {Object<string, number>} newValues |
| 43 */ | 41 */ |
| 44 remoting.StatsAccumulator.prototype.add = function(newValues) { | 42 remoting.StatsAccumulator.prototype.add = function(newValues) { |
| (...skipping 72 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 117 * @return {Array<number>} the list of values for that key | 115 * @return {Array<number>} the list of values for that key |
| 118 */ | 116 */ |
| 119 remoting.StatsAccumulator.prototype.getValueList = function(key) { | 117 remoting.StatsAccumulator.prototype.getValueList = function(key) { |
| 120 var valueList = this.valueLists_[key]; | 118 var valueList = this.valueLists_[key]; |
| 121 if (!valueList) { | 119 if (!valueList) { |
| 122 valueList = []; | 120 valueList = []; |
| 123 this.valueLists_[key] = valueList; | 121 this.valueLists_[key] = valueList; |
| 124 } | 122 } |
| 125 return valueList; | 123 return valueList; |
| 126 }; | 124 }; |
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