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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:13:27 +0000 |
commit | 40a355a42d4a9444dc753c04c6608dade2f06a23 (patch) | |
tree | 871fc667d2de662f171103ce5ec067014ef85e61 /browser/components/backup/BackupService.sys.mjs | |
parent | Adding upstream version 124.0.1. (diff) | |
download | firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.tar.xz firefox-40a355a42d4a9444dc753c04c6608dade2f06a23.zip |
Adding upstream version 125.0.1.upstream/125.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'browser/components/backup/BackupService.sys.mjs')
-rw-r--r-- | browser/components/backup/BackupService.sys.mjs | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/browser/components/backup/BackupService.sys.mjs b/browser/components/backup/BackupService.sys.mjs new file mode 100644 index 0000000000..853f4768ce --- /dev/null +++ b/browser/components/backup/BackupService.sys.mjs @@ -0,0 +1,103 @@ +/* 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/. */ + +import * as BackupResources from "resource:///modules/backup/BackupResources.sys.mjs"; + +const lazy = {}; + +ChromeUtils.defineLazyGetter(lazy, "logConsole", function () { + return console.createInstance({ + prefix: "BackupService", + maxLogLevel: Services.prefs.getBoolPref("browser.backup.log", false) + ? "Debug" + : "Warn", + }); +}); + +/** + * The BackupService class orchestrates the scheduling and creation of profile + * backups. It also does most of the heavy lifting for the restoration of a + * profile backup. + */ +export class BackupService { + /** + * The BackupService singleton instance. + * + * @static + * @type {BackupService|null} + */ + static #instance = null; + + /** + * Map of instantiated BackupResource classes. + * + * @type {Map<string, BackupResource>} + */ + #resources = new Map(); + + /** + * Returns a reference to a BackupService singleton. If this is the first time + * that this getter is accessed, this causes the BackupService singleton to be + * be instantiated. + * + * @static + * @type {BackupService} + */ + static init() { + if (this.#instance) { + return this.#instance; + } + this.#instance = new BackupService(BackupResources); + this.#instance.takeMeasurements(); + + return this.#instance; + } + + /** + * Create a BackupService instance. + * + * @param {object} [backupResources=BackupResources] - Object containing BackupResource classes to associate with this service. + */ + constructor(backupResources = BackupResources) { + lazy.logConsole.debug("Instantiated"); + + for (const resourceName in backupResources) { + let resource = BackupResources[resourceName]; + this.#resources.set(resource.key, resource); + } + } + + /** + * Take measurements of the current profile state for Telemetry. + * + * @returns {Promise<undefined>} + */ + async takeMeasurements() { + lazy.logConsole.debug("Taking Telemetry measurements"); + + // Note: We're talking about kilobytes here, not kibibytes. That means + // 1000 bytes, and not 1024 bytes. + const BYTES_IN_KB = 1000; + const BYTES_IN_MB = 1000000; + + // We'll start by measuring the available disk space on the storage + // device that the profile directory is on. + let profileDir = await IOUtils.getFile(PathUtils.profileDir); + + let profDDiskSpaceBytes = profileDir.diskSpaceAvailable; + + // Make the measurement fuzzier by rounding to the nearest 10MB. + let profDDiskSpaceMB = + Math.round(profDDiskSpaceBytes / BYTES_IN_MB / 100) * 100; + + // And then record the value in kilobytes, since that's what everything + // else is going to be measured in. + Glean.browserBackup.profDDiskSpace.set(profDDiskSpaceMB * BYTES_IN_KB); + + // Measure the size of each file we are going to backup. + for (let resourceClass of this.#resources.values()) { + await new resourceClass().measure(PathUtils.profileDir); + } + } +} |