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30ad731763
MozReview-Commit-ID: 1rlDGjm9k0W --HG-- extra : rebase_source : ca849a93c8d470858f946da6db9255dc45c46fd5
98 lines
3.2 KiB
JavaScript
98 lines
3.2 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
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"resource://gre/modules/Preferences.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "Log",
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"resource://gre/modules/Log.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "TelemetryController",
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"resource://gre/modules/TelemetryController.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
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"resource://gre/modules/AppConstants.jsm");
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XPCOMUtils.defineLazyServiceGetter(this, "gUpdateTimerManager",
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"@mozilla.org/updates/timer-manager;1", "nsIUpdateTimerManager");
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XPCOMUtils.defineLazyServiceGetter(this, "Telemetry",
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"@mozilla.org/base/telemetry;1", "nsITelemetry");
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this.EXPORTED_SYMBOLS = [
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"TelemetryModules",
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];
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const LOGGER_NAME = "Toolkit.Telemetry";
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const LOGGER_PREFIX = "TelemetryModules::";
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// The default is 1 week.
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const MODULES_PING_INTERVAL_SECONDS = 7 * 24 * 60 * 60;
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const MODULES_PING_INTERVAL_PREFERENCE = "toolkit.telemetry.modulesPing.interval";
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const MAX_MODULES_NUM = 512;
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const MAX_NAME_LENGTH = 64;
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const TRUNCATION_DELIMITER = "\u2026";
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this.TelemetryModules = Object.freeze({
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_log: Log.repository.getLoggerWithMessagePrefix(LOGGER_NAME, LOGGER_PREFIX),
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start() {
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// The list of loaded modules is obtainable only when the profiler is enabled.
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// If it isn't, we don't want to send the ping at all.
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if (!AppConstants.MOZ_GECKO_PROFILER) {
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return;
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}
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// Use nsIUpdateTimerManager for a long-duration timer that survives across sessions.
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gUpdateTimerManager.registerTimer(
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"telemetry_modules_ping",
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this,
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Preferences.get(MODULES_PING_INTERVAL_PREFERENCE, MODULES_PING_INTERVAL_SECONDS)
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);
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},
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/**
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* Called when the 'telemetry_modules_ping' timer fires.
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*/
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notify() {
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try {
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Telemetry.getLoadedModules().then(
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modules => {
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modules = modules.filter(module => module.name.length > 0);
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// Cut the list of modules to MAX_MODULES_NUM entries.
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if (modules.length > MAX_MODULES_NUM) {
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modules = modules.slice(0, MAX_MODULES_NUM);
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}
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// Cut the file names of the modules to MAX_NAME_LENGTH characters.
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for (let module of modules) {
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if (module.name.length > MAX_NAME_LENGTH) {
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module.name = module.name.substr(0, MAX_NAME_LENGTH - 1) + TRUNCATION_DELIMITER;
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}
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if (module.debugName !== null && module.debugName.length > MAX_NAME_LENGTH) {
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module.debugName = module.debugName.substr(0, MAX_NAME_LENGTH - 1) + TRUNCATION_DELIMITER;
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}
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}
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TelemetryController.submitExternalPing("modules",
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{
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version: 1,
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modules,
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},
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{
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addClientId: true,
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addEnvironment: true,
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}
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);
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},
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err => this._log.error("notify - promise failed", err)
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);
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} catch (ex) {
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this._log.error("notify - caught exception", ex);
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}
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},
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});
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