gecko-dev/toolkit/content/process-content.js

85 строки
2.6 KiB
JavaScript

/* 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";
var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
// Creates a new PageListener for this process. This will listen for page loads
// and for those that match URLs provided by the parent process will set up
// a dedicated message port and notify the parent process.
Cu.import("resource://gre/modules/RemotePageManager.jsm");
Cu.import("resource://gre/modules/Services.jsm");
const gInContentProcess = Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_CONTENT;
Services.cpmm.addMessageListener("gmp-plugin-crash", msg => {
let gmpservice = Cc["@mozilla.org/gecko-media-plugin-service;1"]
.getService(Ci.mozIGeckoMediaPluginService);
gmpservice.RunPluginCrashCallbacks(msg.data.pluginID, msg.data.pluginName);
});
if (gInContentProcess) {
let ProcessObserver = {
TOPICS: [
"inner-window-destroyed",
"xpcom-shutdown",
],
init() {
for (let topic of this.TOPICS) {
Services.obs.addObserver(this, topic, false);
Services.cpmm.addMessageListener("Memory:GetSummary", this);
}
},
uninit() {
for (let topic of this.TOPICS) {
Services.obs.removeObserver(this, topic);
Services.cpmm.removeMessageListener("Memory:GetSummary", this);
}
},
receiveMessage(msg) {
if (msg.name != "Memory:GetSummary") {
return;
}
let pid = Services.appinfo.processID;
let memMgr = Cc["@mozilla.org/memory-reporter-manager;1"]
.getService(Ci.nsIMemoryReporterManager);
let rss = memMgr.resident;
let uss = memMgr.residentUnique;
Services.cpmm.sendAsyncMessage("Memory:Summary", {
pid,
summary: {
uss,
rss,
}
});
},
observe(subject, topic, data) {
switch (topic) {
case "inner-window-destroyed": {
// Forward inner-window-destroyed notifications with the
// inner window ID, so that code in the parent that should
// do something when content windows go away can do it
let innerWindowID =
subject.QueryInterface(Ci.nsISupportsPRUint64).data;
Services.cpmm.sendAsyncMessage("Toolkit:inner-window-destroyed",
innerWindowID);
break;
}
case "xpcom-shutdown": {
this.uninit();
break;
}
}
},
};
ProcessObserver.init();
}