1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 'use strict'; 6 7 /** 8 * @fileoverview Parses trace_marker events that were inserted in the trace by 9 * userland. 10 */ 11 base.require('tracing.importer.linux_perf.parser'); 12 base.require('tracing.trace_model.counter_series'); 13 14 base.exportTo('tracing.importer.linux_perf', function() { 15 16 var Parser = tracing.importer.linux_perf.Parser; 17 18 /** 19 * Parses linux trace mark events that were inserted in the trace by userland. 20 * @constructor 21 */ 22 function ClockParser(importer) { 23 Parser.call(this, importer); 24 25 importer.registerEventHandler('clock_set_rate', 26 ClockParser.prototype.traceMarkWriteClockEvent.bind(this)); 27 28 this.model_ = importer.model_; 29 this.ppids_ = {}; 30 } 31 32 ClockParser.prototype = { 33 __proto__: Parser.prototype, 34 35 traceMarkWriteClockEvent: function(eventName, cpuNumber, pid, ts, 36 eventBase, threadName) { 37 var event = /(\S+) state=(\d+) cpu_id=(\d+)/.exec(eventBase.details); 38 39 40 var name = event[1]; 41 var rate = parseInt(event[2]); 42 43 var ctr = this.model_.getOrCreateProcess(0) 44 .getOrCreateCounter(null, name); 45 // Initialize the counter's series fields if needed. 46 if (ctr.numSeries === 0) { 47 ctr.addSeries(new tracing.trace_model.CounterSeries('value', 48 tracing.getStringColorId(ctr.name + '.' + 'value'))); 49 } 50 ctr.series.forEach(function(series) { 51 series.addSample(ts, rate); 52 }); 53 54 return true; 55 } 56 }; 57 58 Parser.registerSubtype(ClockParser); 59 60 return { 61 ClockParser: ClockParser 62 }; 63 }); 64
