import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/server/actors/performance.js

@@ -0,0 +1,116 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const { Cu } = require("chrome");
+const { Task } = require("devtools/shared/task");
+const { Actor, ActorClassWithSpec } = require("devtools/shared/protocol");
+const { actorBridgeWithSpec } = require("devtools/server/actors/common");
+const { performanceSpec } = require("devtools/shared/specs/performance");
+
+loader.lazyRequireGetter(this, "events", "sdk/event/core");
+loader.lazyRequireGetter(this, "extend", "sdk/util/object", true);
+
+loader.lazyRequireGetter(this, "PerformanceRecorder",
+  "devtools/server/performance/recorder", true);
+loader.lazyRequireGetter(this, "normalizePerformanceFeatures",
+  "devtools/shared/performance/recording-utils", true);
+
+const PIPE_TO_FRONT_EVENTS = new Set([
+  "recording-started", "recording-stopping", "recording-stopped",
+  "profiler-status", "timeline-data", "console-profile-start"
+]);
+
+const RECORDING_STATE_CHANGE_EVENTS = new Set([
+  "recording-started", "recording-stopping", "recording-stopped"
+]);
+
+/**
+ * This actor wraps the Performance module at devtools/shared/shared/performance.js
+ * and provides RDP definitions.
+ *
+ * @see devtools/shared/shared/performance.js for documentation.
+ */
+var PerformanceActor = ActorClassWithSpec(performanceSpec, {
+  traits: {
+    features: {
+      withMarkers: true,
+      withTicks: true,
+      withMemory: true,
+      withFrames: true,
+      withGCEvents: true,
+      withDocLoadingEvents: true,
+      withAllocations: true,
+    },
+  },
+
+  initialize: function (conn, tabActor) {
+    Actor.prototype.initialize.call(this, conn);
+    this._onRecorderEvent = this._onRecorderEvent.bind(this);
+    this.bridge = new PerformanceRecorder(conn, tabActor);
+    events.on(this.bridge, "*", this._onRecorderEvent);
+  },
+
+  /**
+   * `disconnect` method required to call destroy, since this
+   * actor is not managed by a parent actor.
+   */
+  disconnect: function () {
+    this.destroy();
+  },
+
+  destroy: function () {
+    events.off(this.bridge, "*", this._onRecorderEvent);
+    this.bridge.destroy();
+    Actor.prototype.destroy.call(this);
+  },
+
+  connect: function (config) {
+    this.bridge.connect({ systemClient: config.systemClient });
+    return { traits: this.traits };
+  },
+
+  canCurrentlyRecord: function () {
+    return this.bridge.canCurrentlyRecord();
+  },
+
+  startRecording: Task.async(function* (options = {}) {
+    if (!this.bridge.canCurrentlyRecord().success) {
+      return null;
+    }
+
+    let normalizedOptions = normalizePerformanceFeatures(options, this.traits.features);
+    let recording = yield this.bridge.startRecording(normalizedOptions);
+    this.manage(recording);
+
+    return recording;
+  }),
+
+  stopRecording: actorBridgeWithSpec("stopRecording"),
+  isRecording: actorBridgeWithSpec("isRecording"),
+  getRecordings: actorBridgeWithSpec("getRecordings"),
+  getConfiguration: actorBridgeWithSpec("getConfiguration"),
+  setProfilerStatusInterval: actorBridgeWithSpec("setProfilerStatusInterval"),
+
+  /**
+   * Filter which events get piped to the front.
+   */
+  _onRecorderEvent: function (eventName, ...data) {
+    // If this is a recording state change, call
+    // a method on the related PerformanceRecordingActor so it can
+    // update its internal state.
+    if (RECORDING_STATE_CHANGE_EVENTS.has(eventName)) {
+      let recording = data[0];
+      let extraData = data[1];
+      recording._setState(eventName, extraData);
+    }
+
+    if (PIPE_TO_FRONT_EVENTS.has(eventName)) {
+      events.emit(this, eventName, ...data);
+    }
+  },
+});
+
+exports.PerformanceActor = PerformanceActor;