272cee1e65
This patch was autogenerated by my decomponents.py
It covers almost every file with the extension js, jsm, html, py,
xhtml, or xul.
It removes blank lines after removed lines, when the removed lines are
preceded by either blank lines or the start of a new block. The "start
of a new block" is defined fairly hackily: either the line starts with
//, ends with */, ends with {, <![CDATA[, """ or '''. The first two
cover comments, the third one covers JS, the fourth covers JS embedded
in XUL, and the final two cover JS embedded in Python. This also
applies if the removed line was the first line of the file.
It covers the pattern matching cases like "var {classes: Cc,
interfaces: Ci, utils: Cu, results: Cr} = Components;". It'll remove
the entire thing if they are all either Ci, Cr, Cc or Cu, or it will
remove the appropriate ones and leave the residue behind. If there's
only one behind, then it will turn it into a normal, non-pattern
matching variable definition. (For instance, "const { classes: Cc,
Constructor: CC, interfaces: Ci, utils: Cu } = Components" becomes
"const CC = Components.Constructor".)
MozReview-Commit-ID: DeSHcClQ7cG
95 lines
2.8 KiB
JavaScript
95 lines
2.8 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80 filetype=javascript: */
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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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"use strict";
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/**
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* Read the data saved by nsTerminator during shutdown and feed it to the
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* relevant telemetry histograms.
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*/
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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ChromeUtils.defineModuleGetter(this, "OS",
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"resource://gre/modules/osfile.jsm");
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ChromeUtils.defineModuleGetter(this, "setTimeout",
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"resource://gre/modules/Timer.jsm");
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ChromeUtils.defineModuleGetter(this, "Services",
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"resource://gre/modules/Services.jsm");
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function nsTerminatorTelemetry() {}
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var HISTOGRAMS = {
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"quit-application": "SHUTDOWN_PHASE_DURATION_TICKS_QUIT_APPLICATION",
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"profile-change-teardown": "SHUTDOWN_PHASE_DURATION_TICKS_PROFILE_CHANGE_TEARDOWN",
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"profile-before-change": "SHUTDOWN_PHASE_DURATION_TICKS_PROFILE_BEFORE_CHANGE",
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"xpcom-will-shutdown": "SHUTDOWN_PHASE_DURATION_TICKS_XPCOM_WILL_SHUTDOWN",
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};
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nsTerminatorTelemetry.prototype = {
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classID: Components.ID("{3f78ada1-cba2-442a-82dd-d5fb300ddea7}"),
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_xpcom_factory: XPCOMUtils.generateSingletonFactory(nsTerminatorTelemetry),
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// nsISupports
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
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// nsIObserver
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observe: function DS_observe(aSubject, aTopic, aData) {
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(async function() {
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//
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// This data is hardly critical, reading it can wait for a few seconds.
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//
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await new Promise(resolve => setTimeout(resolve, 3000));
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let PATH = OS.Path.join(OS.Constants.Path.localProfileDir,
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"ShutdownDuration.json");
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let raw;
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try {
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raw = await OS.File.read(PATH, { encoding: "utf-8" });
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} catch (ex) {
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if (!ex.becauseNoSuchFile) {
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throw ex;
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}
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return;
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}
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// Let other errors be reported by Promise's error-reporting.
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// Clean up
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OS.File.remove(PATH);
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OS.File.remove(PATH + ".tmp");
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let data = JSON.parse(raw);
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for (let k of Object.keys(data)) {
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let id = HISTOGRAMS[k];
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try {
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let histogram = Services.telemetry.getHistogramById(id);
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if (!histogram) {
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throw new Error("Unknown histogram " + id);
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}
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histogram.add(Number.parseInt(data[k]));
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} catch (ex) {
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// Make sure that the error is reported and causes test failures,
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// but otherwise, ignore it.
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Promise.reject(ex);
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continue;
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}
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}
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// Inform observers that we are done.
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Services.obs.notifyObservers(null,
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"shutdown-terminator-telemetry-updated");
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})();
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},
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};
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// Module
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([nsTerminatorTelemetry]);
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