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<!DOCTYPE html>
<!--
Copyright (c) 2018 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="/tracing/extras/importer/linux_perf/parser.html">
<script>
'use strict';
/**
* @fileoverview Parses fence events in the Linux event trace format.
*/
tr.exportTo('tr.e.importer.linux_perf', function() {
const ColorScheme = tr.b.ColorScheme;
const Parser = tr.e.importer.linux_perf.Parser;
/**
* Parses linux fence trace events.
* @constructor
*/
function FenceParser(importer) {
Parser.call(this, importer);
this.model_ = importer.model_;
importer.registerEventHandler(
'fence_init',
FenceParser.prototype.initEvent.bind(this));
importer.registerEventHandler(
'fence_destroy',
FenceParser.prototype.fenceDestroyEvent.bind(this));
importer.registerEventHandler(
'fence_enable_signal',
FenceParser.prototype.fenceEnableSignalEvent.bind(this));
importer.registerEventHandler(
'fence_signaled',
FenceParser.prototype.fenceSignaledEvent.bind(this));
this.model_ = importer.model_;
}
const fenceRE = /driver=(\S+) timeline=(\S+) context=(\d+) seqno=(\d+)/;
FenceParser.prototype = {
__proto__: Parser.prototype,
/**
* Parses fence events and sets up state in the importer.
*/
initEvent(eventName, cpuNumber, pid,
ts, eventBase) {
const event = fenceRE.exec(eventBase.details);
if (!event) return false;
if (eventBase.tgid === undefined) {
return false;
}
const thread = this.importer.getOrCreatePseudoThread(event[2]);
thread.lastActiveTs = ts;
return true;
},
fenceDestroyEvent(eventName, cpuNumber, pid, ts, eventBase) {
const event = fenceRE.exec(eventBase.details);
if (!event) return false;
if (eventBase.tgid === undefined) {
return false;
}
const thread = this.importer.getOrCreatePseudoThread(event[2]);
const name = 'fence_destroy(' + event[4] + ')';
const colorName = 'fence(' + event[4] + ')';
if (thread.lastActiveTs !== undefined) {
const duration = ts - thread.lastActiveTs;
const slice = new tr.model.ThreadSlice(
'', name,
ColorScheme.getColorIdForGeneralPurposeString(colorName),
thread.lastActiveTs, {
'driver': event[1],
'context': event[3]
},
duration);
thread.thread.sliceGroup.pushSlice(slice);
}
if (thread.thread.sliceGroup.openSliceCount > 0) {
thread.thread.sliceGroup.endSlice(ts);
}
thread.lastActiveTs = ts;
},
fenceEnableSignalEvent(eventName, cpuNumber, pid, ts, eventBase) {
const event = fenceRE.exec(eventBase.details);
if (!event) return false;
if (eventBase.tgid === undefined) {
return false;
}
const thread = this.importer.getOrCreatePseudoThread(event[2]);
const name = 'fence_enable(' + event[4] + ')';
const colorName = 'fence(' + event[4] + ')';
if (thread.lastActiveTs !== undefined) {
const duration = ts - thread.lastActiveTs;
const slice = new tr.model.ThreadSlice(
'', name,
ColorScheme.getColorIdForGeneralPurposeString(colorName),
thread.lastActiveTs, {
'driver': event[1],
'context': event[3]
},
duration);
thread.thread.sliceGroup.pushSlice(slice);
}
if (thread.thread.sliceGroup.openSliceCount > 0) {
thread.thread.sliceGroup.endSlice(ts);
}
thread.lastActiveTs = ts;
},
fenceSignaledEvent(eventName, cpuNumber, pid, ts, eventBase) {
const event = fenceRE.exec(eventBase.details);
if (!event) return false;
if (eventBase.tgid === undefined) {
return false;
}
const thread = this.importer.getOrCreatePseudoThread(event[2]);
const name = 'fence_signal(' + event[4] + ')';
const colorName = 'fence(' + event[4] + ')';
if (thread.lastActiveTs !== undefined) {
const duration = ts - thread.lastActiveTs;
const slice = new tr.model.ThreadSlice(
'', name,
ColorScheme.getColorIdForGeneralPurposeString(colorName),
thread.lastActiveTs, {
'driver': event[1],
'context': event[3]
},
duration);
thread.thread.sliceGroup.pushSlice(slice);
}
if (thread.thread.sliceGroup.openSliceCount > 0) {
thread.thread.sliceGroup.endSlice(ts);
}
thread.lastActiveTs = ts;
return true;
},
};
Parser.register(FenceParser);
return {
FenceParser,
};
});
</script>
|
