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bfc44708bc
Makes initing Places services cheaper, by delaying the connection creation to the first time it's actually needed. Same way, delays reading the bookmark roots at the first time they are requested. Deprecates the concept of lazy observers, since they are no more needed, we can just use addObserver. Simplifies the startup path: always sends "places-init-complete" (both as a category and a topic) when the connection starts and adds a "locked" database state when we can't get a working connection. Makes PlacesCategoriesStarter register for the new category, since it's cheaper than being a bookmarks observer. Fixes a couple race conditions in keywords and expiration due to new startup timings. Removes a test in test_keywords.js that is no more easily feasible, since it'd requires a pre-build places.sqlite that should be kept up-to-date at every version. MozReview-Commit-ID: 6ccPUZ651m0 --HG-- extra : rebase_source : 07376076eb42c84caaedeffd75f133d83a6c3d70
71 lines
2.7 KiB
JavaScript
71 lines
2.7 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
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* vim: sw=2 ts=2 sts=2 expandtab
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* 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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const {utils: Cu, classes: Cc, interfaces: Ci} = Components;
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// Fired by TelemetryController when async telemetry data should be collected.
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const TOPIC_GATHER_TELEMETRY = "gather-telemetry";
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// Seconds between maintenance runs.
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const MAINTENANCE_INTERVAL_SECONDS = 7 * 86400;
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Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
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Components.utils.import("resource://gre/modules/Services.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PlacesUtils",
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"resource://gre/modules/PlacesUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PlacesDBUtils",
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"resource://gre/modules/PlacesDBUtils.jsm");
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/**
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* This component can be used as a starter for modules that have to run when
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* certain categories are invoked.
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*/
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function PlacesCategoriesStarter() {
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Services.obs.addObserver(this, TOPIC_GATHER_TELEMETRY);
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Services.obs.addObserver(this, PlacesUtils.TOPIC_SHUTDOWN);
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}
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PlacesCategoriesStarter.prototype = {
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observe: function PCS_observe(aSubject, aTopic, aData) {
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switch (aTopic) {
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case PlacesUtils.TOPIC_SHUTDOWN:
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Services.obs.removeObserver(this, PlacesUtils.TOPIC_SHUTDOWN);
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Services.obs.removeObserver(this, TOPIC_GATHER_TELEMETRY);
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if (Cu.isModuleLoaded("resource://gre/modules/PlacesDBUtils.jsm")) {
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PlacesDBUtils.shutdown();
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}
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break;
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case TOPIC_GATHER_TELEMETRY:
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PlacesDBUtils.telemetry();
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break;
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case PlacesUtils.TOPIC_INIT_COMPLETE:
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// Init keywords so it starts listening to bookmarks notifications.
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PlacesUtils.keywords;
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break;
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case "idle-daily":
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// Once a week run places.sqlite maintenance tasks.
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let lastMaintenance =
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Services.prefs.getIntPref("places.database.lastMaintenance", 0);
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let nowSeconds = parseInt(Date.now() / 1000);
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if (lastMaintenance < nowSeconds - MAINTENANCE_INTERVAL_SECONDS) {
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PlacesDBUtils.maintenanceOnIdle();
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}
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break;
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default:
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throw new Error("Trying to handle an unknown category.");
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}
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},
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classID: Components.ID("803938d5-e26d-4453-bf46-ad4b26e41114"),
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_xpcom_factory: XPCOMUtils.generateSingletonFactory(PlacesCategoriesStarter),
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QueryInterface: XPCOMUtils.generateQI([
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Ci.nsIObserver,
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])
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};
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var components = [PlacesCategoriesStarter];
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
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