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-rw-r--r--devtools/server/actors/process.js76
1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/server/actors/process.js b/devtools/server/actors/process.js
new file mode 100644
index 0000000000..2ed2da64c0
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+++ b/devtools/server/actors/process.js
@@ -0,0 +1,76 @@
+/* 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";
+
+loader.lazyGetter(this, "ppmm", () => {
+ return Cc["@mozilla.org/parentprocessmessagemanager;1"].getService();
+});
+
+class ProcessActorList {
+ constructor() {
+ this._actors = new Map();
+ this._onListChanged = null;
+ this._mustNotify = false;
+ this._hasObserver = false;
+ }
+
+ getList() {
+ const processes = [];
+ for (let i = 0; i < ppmm.childCount; i++) {
+ const mm = ppmm.getChildAt(i);
+ processes.push({
+ // An ID of zero is always used for the parent. It would be nice to fix
+ // this so that the pid is also used for the parent, see bug 1587443.
+ id: mm.isInProcess ? 0 : mm.osPid,
+ parent: mm.isInProcess,
+ // TODO: exposes process message manager on frameloaders in order to compute this
+ tabCount: undefined,
+ });
+ }
+ this._mustNotify = true;
+ this._checkListening();
+
+ return processes;
+ }
+
+ get onListChanged() {
+ return this._onListChanged;
+ }
+
+ set onListChanged(onListChanged) {
+ if (typeof onListChanged !== "function" && onListChanged !== null) {
+ throw new Error("onListChanged must be either a function or null.");
+ }
+ if (onListChanged === this._onListChanged) {
+ return;
+ }
+
+ this._onListChanged = onListChanged;
+ this._checkListening();
+ }
+
+ _checkListening() {
+ if (this._onListChanged !== null && this._mustNotify) {
+ if (!this._hasObserver) {
+ Services.obs.addObserver(this, "ipc:content-created");
+ Services.obs.addObserver(this, "ipc:content-shutdown");
+ this._hasObserver = true;
+ }
+ } else if (this._hasObserver) {
+ Services.obs.removeObserver(this, "ipc:content-created");
+ Services.obs.removeObserver(this, "ipc:content-shutdown");
+ this._hasObserver = false;
+ }
+ }
+
+ observe() {
+ if (this._mustNotify) {
+ this._onListChanged();
+ this._mustNotify = false;
+ }
+ }
+}
+
+exports.ProcessActorList = ProcessActorList;