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/* 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";
/**
* An API for being informed of slow add-ons and tabs
* (content process scripts).
*/
const { utils: Cu, classes: Cc, interfaces: Ci } = Components;
const { Services } = Cu.import("resource://gre/modules/Services.jsm", {});
/**
* `true` if this is a content process, `false` otherwise.
*/
let isContent = Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT;
if (isContent) {
const { PerformanceWatcher } = Cu.import("resource://gre/modules/PerformanceWatcher.jsm", {});
let toMsg = function(alerts) {
let result = [];
for (let {source, details} of alerts) {
// Convert xpcom values to serializable data.
let serializableSource = {};
for (let k of ["groupId", "name", "addonId", "windowId", "isSystem", "processId", "isContentProcess"]) {
serializableSource[k] = source[k];
}
let serializableDetails = {};
for (let k of ["reason", "highestJank", "highestCPOW"]) {
serializableDetails[k] = details[k];
}
result.push({source:serializableSource, details:serializableDetails});
}
return result;
}
PerformanceWatcher.addPerformanceListener({addonId: "*"}, alerts => {
Services.cpmm.sendAsyncMessage("performancewatcher-propagate-notifications",
{addons: toMsg(alerts)}
);
});
PerformanceWatcher.addPerformanceListener({windowId: 0}, alerts => {
Services.cpmm.sendAsyncMessage("performancewatcher-propagate-notifications",
{windows: toMsg(alerts)}
);
});
}
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