The Tor Browser / file comparison
comparison: toolkit/devtools/server/actors/eventlooplag.js
toolkit/devtools/server/actors/eventlooplag.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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deleted
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| -1:000000000000 | 0:63bf8bbad400 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 /** | |
| 6 * The eventLoopLag actor emits "event-loop-lag" events when the event | |
| 7 * loop gets unresponsive. The event comes with a "time" property (the | |
| 8 * duration of the lag in milliseconds). | |
| 9 */ | |
| 10 | |
| 11 const {Ci, Cu} = require("chrome"); | |
| 12 const Services = require("Services"); | |
| 13 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 14 const protocol = require("devtools/server/protocol"); | |
| 15 const {method, Arg, RetVal} = protocol; | |
| 16 const events = require("sdk/event/core"); | |
| 17 | |
| 18 exports.register = function(handle) { | |
| 19 handle.addGlobalActor(EventLoopLagActor, "eventLoopLagActor"); | |
| 20 handle.addTabActor(EventLoopLagActor, "eventLoopLagActor"); | |
| 21 }; | |
| 22 | |
| 23 exports.unregister = function(handle) { | |
| 24 handle.removeGlobalActor(EventLoopLagActor); | |
| 25 handle.removeTabActor(EventLoopLagActor); | |
| 26 }; | |
| 27 | |
| 28 let EventLoopLagActor = protocol.ActorClass({ | |
| 29 | |
| 30 typeName: "eventLoopLag", | |
| 31 | |
| 32 _observerAdded: false, | |
| 33 | |
| 34 events: { | |
| 35 "event-loop-lag" : { | |
| 36 type: "event-loop-lag", | |
| 37 time: Arg(0, "number") // duration of the lag in milliseconds. | |
| 38 } | |
| 39 }, | |
| 40 | |
| 41 /** | |
| 42 * Start tracking the event loop lags. | |
| 43 */ | |
| 44 start: method(function() { | |
| 45 if (!this._observerAdded) { | |
| 46 Services.obs.addObserver(this, 'event-loop-lag', false); | |
| 47 this._observerAdded = true; | |
| 48 } | |
| 49 return Services.appShell.startEventLoopLagTracking(); | |
| 50 }, { | |
| 51 request: {}, | |
| 52 response: {success: RetVal("number")} | |
| 53 }), | |
| 54 | |
| 55 /** | |
| 56 * Stop tracking the event loop lags. | |
| 57 */ | |
| 58 stop: method(function() { | |
| 59 if (this._observerAdded) { | |
| 60 Services.obs.removeObserver(this, 'event-loop-lag'); | |
| 61 this._observerAdded = false; | |
| 62 } | |
| 63 Services.appShell.stopEventLoopLagTracking(); | |
| 64 }, {request: {},response: {}}), | |
| 65 | |
| 66 destroy: function() { | |
| 67 this.stop(); | |
| 68 protocol.Actor.prototype.destroy.call(this); | |
| 69 }, | |
| 70 | |
| 71 // nsIObserver | |
| 72 | |
| 73 observe: function (subject, topic, data) { | |
| 74 if (topic == "event-loop-lag") { | |
| 75 // Forward event loop lag event | |
| 76 events.emit(this, "event-loop-lag", data); | |
| 77 } | |
| 78 }, | |
| 79 | |
| 80 QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]), | |
| 81 }); | |
| 82 | |
| 83 exports.EventLoopLagFront = protocol.FrontClass(EventLoopLagActor, { | |
| 84 initialize: function(client, form) { | |
| 85 protocol.Front.prototype.initialize.call(this, client); | |
| 86 this.actorID = form.eventLoopLagActor; | |
| 87 client.addActorPool(this); | |
| 88 this.manage(this); | |
| 89 }, | |
| 90 }); |
