Add m-esr52 at 52.6.0

1 files changed, 83 insertions, 0 deletions

diff --git a/devtools/server/actors/memory.js b/devtools/server/actors/memory.js
new file mode 100644
index 000000000..5c41a7dc1
--- /dev/null
+++ b/devtools/server/actors/memory.js
@@ -0,0 +1,83 @@
+/* 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 protocol = require("devtools/shared/protocol");
+const { Memory } = require("devtools/server/performance/memory");
+const { actorBridgeWithSpec } = require("devtools/server/actors/common");
+const { memorySpec } = require("devtools/shared/specs/memory");
+loader.lazyRequireGetter(this, "events", "sdk/event/core");
+loader.lazyRequireGetter(this, "StackFrameCache",
+                         "devtools/server/actors/utils/stack", true);
+
+/**
+ * An actor that returns memory usage data for its parent actor's window.
+ * A tab-scoped instance of this actor will measure the memory footprint of its
+ * parent tab. A global-scoped instance however, will measure the memory
+ * footprint of the chrome window referenced by the root actor.
+ *
+ * This actor wraps the Memory module at devtools/server/performance/memory.js
+ * and provides RDP definitions.
+ *
+ * @see devtools/server/performance/memory.js for documentation.
+ */
+exports.MemoryActor = protocol.ActorClassWithSpec(memorySpec, {
+  initialize: function (conn, parent, frameCache = new StackFrameCache()) {
+    protocol.Actor.prototype.initialize.call(this, conn);
+
+    this._onGarbageCollection = this._onGarbageCollection.bind(this);
+    this._onAllocations = this._onAllocations.bind(this);
+    this.bridge = new Memory(parent, frameCache);
+    this.bridge.on("garbage-collection", this._onGarbageCollection);
+    this.bridge.on("allocations", this._onAllocations);
+  },
+
+  destroy: function () {
+    this.bridge.off("garbage-collection", this._onGarbageCollection);
+    this.bridge.off("allocations", this._onAllocations);
+    this.bridge.destroy();
+    protocol.Actor.prototype.destroy.call(this);
+  },
+
+  attach: actorBridgeWithSpec("attach"),
+
+  detach: actorBridgeWithSpec("detach"),
+
+  getState: actorBridgeWithSpec("getState"),
+
+  saveHeapSnapshot: function (boundaries) {
+    return this.bridge.saveHeapSnapshot(boundaries);
+  },
+
+  takeCensus: actorBridgeWithSpec("takeCensus"),
+
+  startRecordingAllocations: actorBridgeWithSpec("startRecordingAllocations"),
+
+  stopRecordingAllocations: actorBridgeWithSpec("stopRecordingAllocations"),
+
+  getAllocationsSettings: actorBridgeWithSpec("getAllocationsSettings"),
+
+  getAllocations: actorBridgeWithSpec("getAllocations"),
+
+  forceGarbageCollection: actorBridgeWithSpec("forceGarbageCollection"),
+
+  forceCycleCollection: actorBridgeWithSpec("forceCycleCollection"),
+
+  measure: actorBridgeWithSpec("measure"),
+
+  residentUnique: actorBridgeWithSpec("residentUnique"),
+
+  _onGarbageCollection: function (data) {
+    if (this.conn.transport) {
+      events.emit(this, "garbage-collection", data);
+    }
+  },
+
+  _onAllocations: function (data) {
+    if (this.conn.transport) {
+      events.emit(this, "allocations", data);
+    }
+  },
+});