| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2012 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="/extras/importer/linux_perf/parser.html"> |
| |
| <script> |
| 'use strict'; |
| |
| /** |
| * @fileoverview Parses gesture events in the Linux event trace format. |
| */ |
| tr.exportTo('tr.e.importer.linux_perf', function() { |
| |
| var Parser = tr.e.importer.linux_perf.Parser; |
| |
| /** |
| * Parses trace events generated by gesture library for touchpad. |
| * @constructor |
| */ |
| function GestureParser(importer) { |
| Parser.call(this, importer); |
| importer.registerEventHandler('tracing_mark_write:log', |
| GestureParser.prototype.logEvent.bind(this)); |
| importer.registerEventHandler('tracing_mark_write:SyncInterpret', |
| GestureParser.prototype.syncEvent.bind(this)); |
| importer.registerEventHandler('tracing_mark_write:HandleTimer', |
| GestureParser.prototype.timerEvent.bind(this)); |
| } |
| |
| GestureParser.prototype = { |
| __proto__: Parser.prototype, |
| |
| /** |
| * Parse events generate by gesture library. |
| * gestureOpenSlice and gestureCloseSlice are two common |
| * functions to store the begin time and end time for all |
| * events in gesture library |
| */ |
| gestureOpenSlice: function(title, ts, opt_args) { |
| var thread = this.importer.getOrCreatePseudoThread('gesture').thread; |
| thread.sliceGroup.beginSlice( |
| 'touchpad_gesture', title, ts, opt_args); |
| }, |
| |
| gestureCloseSlice: function(title, ts) { |
| var thread = this.importer.getOrCreatePseudoThread('gesture').thread; |
| if (thread.sliceGroup.openSliceCount) { |
| var slice = thread.sliceGroup.mostRecentlyOpenedPartialSlice; |
| if (slice.title != title) { |
| this.importer.model.importWarning({ |
| type: 'title_match_error', |
| message: 'Titles do not match. Title is ' + |
| slice.title + ' in openSlice, and is ' + |
| title + ' in endSlice' |
| }); |
| } else { |
| thread.sliceGroup.endSlice(ts); |
| } |
| } |
| }, |
| |
| /** |
| * For log events, events will come in pairs with a tag log: |
| * like this: |
| * tracing_mark_write: log: start: TimerLogOutputs |
| * tracing_mark_write: log: end: TimerLogOutputs |
| * which represent the start and the end time of certain log behavior |
| * Take these logs above for example, they are the start and end time |
| * of logging Output for HandleTimer function |
| */ |
| logEvent: function(eventName, cpuNumber, pid, ts, eventBase) { |
| var innerEvent = |
| /^\s*(\w+):\s*(\w+)$/.exec(eventBase.details); |
| switch (innerEvent[1]) { |
| case 'start': |
| this.gestureOpenSlice('GestureLog', ts, {name: innerEvent[2]}); |
| break; |
| case 'end': |
| this.gestureCloseSlice('GestureLog', ts); |
| } |
| return true; |
| }, |
| |
| /** |
| * For SyncInterpret events, events will come in pairs with |
| * a tag SyncInterpret: |
| * like this: |
| * tracing_mark_write: SyncInterpret: start: ClickWiggleFilterInterpreter |
| * tracing_mark_write: SyncInterpret: end: ClickWiggleFilterInterpreter |
| * which represent the start and the end time of SyncInterpret function |
| * inside the certain interpreter in the gesture library. |
| * Take the logs above for example, they are the start and end time |
| * of the SyncInterpret function inside ClickWiggleFilterInterpreter |
| */ |
| syncEvent: function(eventName, cpuNumber, pid, ts, eventBase) { |
| var innerEvent = /^\s*(\w+):\s*(\w+)$/.exec(eventBase.details); |
| switch (innerEvent[1]) { |
| case 'start': |
| this.gestureOpenSlice('SyncInterpret', ts, |
| {interpreter: innerEvent[2]}); |
| break; |
| case 'end': |
| this.gestureCloseSlice('SyncInterpret', ts); |
| } |
| return true; |
| }, |
| |
| /** |
| * For HandleTimer events, events will come in pairs with |
| * a tag HandleTimer: |
| * like this: |
| * tracing_mark_write: HandleTimer: start: LookaheadFilterInterpreter |
| * tracing_mark_write: HandleTimer: end: LookaheadFilterInterpreter |
| * which represent the start and the end time of HandleTimer function |
| * inside the certain interpreter in the gesture library. |
| * Take the logs above for example, they are the start and end time |
| * of the HandleTimer function inside LookaheadFilterInterpreter |
| */ |
| timerEvent: function(eventName, cpuNumber, pid, ts, eventBase) { |
| var innerEvent = /^\s*(\w+):\s*(\w+)$/.exec(eventBase.details); |
| switch (innerEvent[1]) { |
| case 'start': |
| this.gestureOpenSlice('HandleTimer', ts, |
| {interpreter: innerEvent[2]}); |
| break; |
| case 'end': |
| this.gestureCloseSlice('HandleTimer', ts); |
| } |
| return true; |
| } |
| }; |
| |
| Parser.register(GestureParser); |
| |
| return { |
| GestureParser: GestureParser |
| }; |
| }); |
| </script> |
| |
