| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/model/event.html"> |
| <link rel="import" href="/base/guid.html"> |
| |
| <script> |
| 'use strict'; |
| |
| /** |
| * @fileoverview Provides the TimedEvent class. |
| */ |
| tr.exportTo('tr.model', function() { |
| /** |
| * A TimedEvent is the base type for any piece of data in the trace model with |
| * a specific start and duration. |
| * |
| * @constructor |
| */ |
| function TimedEvent(start) { |
| tr.model.Event.call(this); |
| this.start = start; |
| this.duration = 0; |
| this.cpuStart = undefined; |
| this.cpuDuration = undefined; |
| } |
| |
| TimedEvent.prototype = { |
| __proto__: tr.model.Event.prototype, |
| |
| get end() { |
| return this.start + this.duration; |
| }, |
| |
| addBoundsToRange: function(range) { |
| range.addValue(this.start); |
| range.addValue(this.end); |
| }, |
| |
| bounds: function(that) { |
| // Due to inaccuracy of floating-point calculation, the end times of |
| // slices from a B/E pair (whose end = start + original_end - start) |
| // and an X event (whose end = start + duration) at the same time may |
| // become not equal. Round back to micros (which is the source data |
| // precision) to ensure equality below. |
| var this_end_micros = Math.round(this.end * 1000); |
| var that_end_micros = Math.round(that.end * 1000); |
| return this.start <= that.start && this_end_micros >= that_end_micros; |
| } |
| }; |
| |
| return { |
| TimedEvent: TimedEvent |
| }; |
| }); |
| </script> |