strong-arc
Version:
A visual suite for the StrongLoop API Platform
218 lines (196 loc) • 7.04 kB
JavaScript
/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @constructor
* @extends {WebInspector.SDKModel}
* @param {!WebInspector.Target} target
*/
WebInspector.TimelineManager = function(target)
{
WebInspector.SDKModel.call(this, WebInspector.TimelineManager, target);
this._dispatcher = new WebInspector.TimelineDispatcher(this);
this._enablementCount = 0;
this._jsProfilerStarted = false;
target.timelineAgent().enable();
}
WebInspector.TimelineManager.EventTypes = {
TimelineStarted: "TimelineStarted",
TimelineStopped: "TimelineStopped",
TimelineEventRecorded: "TimelineEventRecorded",
TimelineProgress: "TimelineProgress"
}
WebInspector.TimelineManager.prototype = {
/**
* @return {boolean}
*/
isStarted: function()
{
return this._dispatcher.isStarted();
},
/**
* @param {number=} maxCallStackDepth
* @param {string=} liveEvents
* @param {boolean=} includeCounters
* @param {boolean=} includeGPUEvents
* @param {function(?Protocol.Error)=} callback
*/
start: function(maxCallStackDepth, liveEvents, includeCounters, includeGPUEvents, callback)
{
this._enablementCount++;
WebInspector.profilingLock().acquire();
if (WebInspector.experimentsSettings.timelineJSCPUProfile.isEnabled() && maxCallStackDepth) {
this._configureCpuProfilerSamplingInterval();
this._jsProfilerStarted = true;
this.target().profilerAgent().start();
}
if (this._enablementCount === 1)
this.target().timelineAgent().start(maxCallStackDepth, true, liveEvents, includeCounters, includeGPUEvents, callback);
else if (callback)
callback(null);
},
/**
* @param {function(?Protocol.Error,?ProfilerAgent.CPUProfile)} callback
*/
stop: function(callback)
{
this._enablementCount--;
if (this._enablementCount < 0) {
console.error("WebInspector.TimelineManager start/stop calls are unbalanced " + new Error().stack);
return;
}
var masterError = null;
var masterProfile = null;
var callbackBarrier = new CallbackBarrier();
if (this._jsProfilerStarted) {
this.target().profilerAgent().stop(callbackBarrier.createCallback(profilerCallback));
this._jsProfilerStarted = false;
}
if (!this._enablementCount)
this.target().timelineAgent().stop(callbackBarrier.createCallback(timelineCallback));
callbackBarrier.callWhenDone(allDoneCallback);
/**
* @param {?Protocol.Error} error
*/
function timelineCallback(error)
{
masterError = masterError || error;
}
/**
* @param {?Protocol.Error} error
* @param {!ProfilerAgent.CPUProfile} profile
*/
function profilerCallback(error, profile)
{
masterError = masterError || error;
masterProfile = profile;
}
function allDoneCallback()
{
WebInspector.profilingLock().release();
callback(masterError, masterProfile);
}
},
/**
* @param {boolean=} consoleTimeline
* @param {!Array.<!TimelineAgent.TimelineEvent>=} events
*/
_stopped: function(consoleTimeline, events)
{
var data = {
consoleTimeline: consoleTimeline,
events: events || []
};
this.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStopped, data);
},
_configureCpuProfilerSamplingInterval: function()
{
var intervalUs = WebInspector.settings.highResolutionCpuProfiling.get() ? 100 : 1000;
this.target().profilerAgent().setSamplingInterval(intervalUs, didChangeInterval);
function didChangeInterval(error)
{
if (error)
WebInspector.console.error(error);
}
},
__proto__: WebInspector.SDKModel.prototype
}
/**
* @constructor
* @implements {TimelineAgent.Dispatcher}
*/
WebInspector.TimelineDispatcher = function(manager)
{
this._manager = manager;
this._manager.target().registerTimelineDispatcher(this);
}
WebInspector.TimelineDispatcher.prototype = {
/**
* @param {!TimelineAgent.TimelineEvent} record
*/
eventRecorded: function(record)
{
this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineEventRecorded, record);
},
/**
* @return {boolean}
*/
isStarted: function()
{
return !!this._started;
},
/**
* @param {boolean=} consoleTimeline
*/
started: function(consoleTimeline)
{
if (consoleTimeline) {
// Wake up timeline panel module.
self.runtime.loadModule("timeline");
}
this._started = true;
this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStarted, consoleTimeline);
},
/**
* @param {boolean=} consoleTimeline
* @param {!Array.<!TimelineAgent.TimelineEvent>=} events
*/
stopped: function(consoleTimeline, events)
{
this._started = false;
this._manager._stopped(consoleTimeline, events);
},
/**
* @param {number} count
*/
progress: function(count)
{
this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineProgress, count);
}
}