src/third_party/trace-viewer/trace_viewer/tracing/analysis/analyze_selection.html

   1 <!DOCTYPE html>
   2 <!--
   3 Copyright (c) 2013 The Chromium Authors. All rights reserved.
   4 Use of this source code is governed by a BSD-style license that can be
   5 found in the LICENSE file.
   6 -->
   7
   8 <link rel="import" href="/tracing/analysis/analyze_counters.html">
   9 <link rel="import" href="/tracing/analysis/analyze_samples.html">
  10 <link rel="import" href="/tracing/analysis/analyze_slices.html">
  11 <link rel="import" href="/tracing/analysis/util.html">
  12 <link rel="import" href="/tvcm/ui.html">
  13
  14 <script>
  15 'use strict';
  16
  17 tvcm.exportTo('tracing.analysis', function() {
  18   /**
  19    * Analyzes the selection, outputting the analysis results into the provided
  20    * results object.
  21    *
  22    * @param {AnalysisResults} results Where the analysis is placed.
  23    * @param {Selection} selection What to analyze.
  24    */
  25   function analyzeSelection(results, selection) {
  26     analyzeEventsByType(results, selection.getEventsOrganizedByType());
  27   }
  28
  29   function analyzeEventsByType(results, eventsByType) {
  30     var sliceEvents = eventsByType.slices;
  31     var counterSampleEvents = eventsByType.counterSamples;
  32     var instantEvents = eventsByType.instantEvents;
  33     var sampleEvents = eventsByType.samples;
  34     var flowEvents = eventsByType.flowEvents;
  35
  36     var objectEvents = new tracing.Selection();
  37     objectEvents.addSelection(eventsByType.objectSnapshots);
  38     objectEvents.addSelection(eventsByType.objectInstances);
  39
  40     if (sliceEvents.length == 1) {
  41       tracing.analysis.analyzeSingleSlice(results, sliceEvents[0], 'Slice');
  42     } else if (sliceEvents.length > 1) {
  43       tracing.analysis.analyzeMultipleSlices(results, sliceEvents, 'Slices');
  44     }
  45
  46     if (flowEvents.length == 1) {
  47       tracing.analysis.analyzeSingleSlice(results, flowEvents[0], 'Flow Event');
  48     } else if (flowEvents.length > 1) {
  49       tracing.analysis.analyzeMultipleSlices(results, flowEvents,
  50                                              'Flow Events');
  51     }
  52
  53     if (instantEvents.length == 1) {
  54       tracing.analysis.analyzeSingleSlice(results, instantEvents[0],
  55                                           'Instant Event');
  56     } else if (instantEvents.length > 1) {
  57       tracing.analysis.analyzeMultipleSlices(results, instantEvents,
  58                                              'Instant Events');
  59     }
  60
  61     if (sampleEvents.length == 1) {
  62       tracing.analysis.analyzeSingleSampleEvent(results, sampleEvents[0],
  63                                                 'Sample Event');
  64     } else if (sampleEvents.length > 1) {
  65       tracing.analysis.analyzeMultipleSampleEvents(results, sampleEvents,
  66                                                    'Sample Events');
  67     }
  68
  69     if (counterSampleEvents.length != 0)
  70       tracing.analysis.analyzeCounterSamples(results, counterSampleEvents);
  71
  72     if (objectEvents.length)
  73       analyzeObjectEvents(results, objectEvents);
  74   }
  75
  76   /**
  77    * Extremely simplistic analysis of objects. Mainly exists to provide
  78    * click-through to the main object's analysis view.
  79    */
  80   function analyzeObjectEvents(results, objectEvents) {
  81     objectEvents = tvcm.asArray(objectEvents).sort(
  82         tvcm.Range.compareByMinTimes);
  83
  84     results.appendHeader('Selected Objects:');
  85     var table = results.appendTable('analysis-object-sample-table', 2);
  86
  87     objectEvents.forEach(function(event) {
  88       var row = results.appendBodyRow(table);
  89       var ts;
  90       var objectText;
  91       var selectionGenerator;
  92       if (event instanceof tracing.trace_model.ObjectSnapshot) {
  93         var objectSnapshot = event;
  94         ts = tracing.analysis.tsRound(objectSnapshot.ts);
  95         objectText = objectSnapshot.objectInstance.typeName + ' ' +
  96             objectSnapshot.objectInstance.id;
  97         selectionGenerator = function() {
  98           var selection = new tracing.Selection();
  99           selection.push(objectSnapshot);
 100           return selection;
 101         };
 102       } else {
 103         var objectInstance = event;
 104
 105         var deletionTs = objectInstance.deletionTs == Number.MAX_VALUE ?
 106             '' : tracing.analysis.tsRound(objectInstance.deletionTs);
 107         ts = tracing.analysis.tsRound(objectInstance.creationTs) +
 108             '-' + deletionTs;
 109
 110         objectText = objectInstance.typeName + ' ' +
 111             objectInstance.id;
 112
 113         selectionGenerator = function() {
 114           var selection = new tracing.Selection();
 115           selection.push(objectInstance);
 116           return selection;
 117         };
 118       }
 119
 120       results.appendTableCell(table, row, ts);
 121       var linkContainer = results.appendTableCell(table, row, '');
 122       linkContainer.appendChild(
 123           results.createSelectionChangingLink(objectText, selectionGenerator));
 124     });
 125   }
 126
 127   return {
 128     analyzeSelection: analyzeSelection,
 129     analyzeEventsByType: analyzeEventsByType
 130   };
 131 });
 132 </script>