gecko-dev/remote/Log.jsm
Andreas Tolfsen f7c6bb254b bug 1543676: remote: avoid Preferences.jsm before first paint; r=yulia
It is illegal for any code to depend on
Preferences.jsm before first paint.  This enforced by
browser/base/content/test/performance/browser_startup.js, so we
must change remote/RemoteAgent.jsm to use an alternate mechanism
for getting at the preferences it needs.

Differential Revision: https://phabricator.services.mozilla.com/D27246

--HG--
extra : moz-landing-system : lando
2019-04-15 14:41:21 +00:00

32 lines
1.0 KiB
JavaScript

/* 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";
var EXPORTED_SYMBOLS = ["Log"];
const {Log: StdLog} = ChromeUtils.import("resource://gre/modules/Log.jsm");
const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
const LOG_LEVEL = "remote.log.level";
/** E10s compatible wrapper for the standard logger from Log.jsm. */
class Log {
static get() {
const logger = StdLog.repository.getLogger("RemoteAgent");
if (logger.ownAppenders.length == 0) {
logger.addAppender(new StdLog.DumpAppender());
logger.manageLevelFromPref(LOG_LEVEL);
}
return logger;
}
static get verbose() {
// we can't use Preferences.jsm before first paint,
// see ../browser/base/content/test/performance/browser_startup.js
const level = Services.prefs.getStringPref(LOG_LEVEL, "Info");
return StdLog.Level[level] >= StdLog.Level.Info;
}
}