gecko/toolkit/components/telemetry/TelemetryLog.jsm

36 lines
932 B
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/. */
this.EXPORTED_SYMBOLS = ["TelemetryLog"];
const Cc = Components.classes;
const Ci = Components.interfaces;
const Telemetry = Cc["@mozilla.org/base/telemetry;1"].getService(Ci.nsITelemetry);
var gLogEntries = [];
this.TelemetryLog = Object.freeze({
log: function(id, data) {
id = String(id);
var ts;
try {
ts = Math.floor(Telemetry.msSinceProcessStart());
} catch(e) {
// If timestamp is screwed up, we just give up instead of making up
// data.
return;
}
var entry = [id, ts];
if (data !== undefined) {
entry = entry.concat(Array.prototype.map.call(data, String));
}
gLogEntries.push(entry);
},
entries: function() {
return gLogEntries;
}
});