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/* 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';
module.metadata = {
"stability": "unstable"
};
const { Cc, Ci } = require('chrome');
const system = require('../sdk/system');
const runtime = require('../sdk/system/runtime');
const { XPCOMUtils } = require("resource://gre/modules/XPCOMUtils.jsm");
const isWindows = system.platform === 'win32';
const endianness = ((new Uint32Array((new Uint8Array([1,2,3,4])).buffer))[0] === 0x04030201) ? 'LE' : 'BE';
XPCOMUtils.defineLazyGetter(this, "oscpu", () => {
try {
return Cc["@mozilla.org/network/protocol;1?name=http"].getService(Ci.nsIHttpProtocolHandler).oscpu;
} catch (e) {
return "";
}
});
XPCOMUtils.defineLazyGetter(this, "hostname", () => {
try {
// On some platforms (Linux according to try), this service does not exist and fails.
return Cc["@mozilla.org/network/dns-service;1"].getService(Ci.nsIDNSService).myHostName;
} catch (e) {
return "";
}
});
/**
* Returns a path to a temp directory
*/
exports.tmpdir = () => system.pathFor('TmpD');
/**
* Returns the endianness of the architecture: either 'LE' or 'BE'
*/
exports.endianness = () => endianness;
/**
* Returns hostname of the machine
*/
exports.hostname = () => hostname;
/**
* Name of the OS type
* Possible values:
* https://developer.mozilla.org/en/OS_TARGET
*/
exports.type = () => runtime.OS;
/**
* Name of the OS Platform in lower case string.
* Possible values:
* https://developer.mozilla.org/en/OS_TARGET
*/
exports.platform = () => system.platform;
/**
* Type of processor architecture running:
* 'arm', 'ia32', 'x86', 'x64'
*/
exports.arch = () => system.architecture;
/**
* Returns the operating system release.
*/
exports.release = () => {
let match = oscpu.match(/(\d[\.\d]*)/);
return match && match.length > 1 ? match[1] : oscpu;
};
/**
* Returns EOL character for the OS
*/
exports.EOL = isWindows ? '\r\n' : '\n';
/**
* Returns [0, 0, 0], as this is not implemented.
*/
exports.loadavg = () => [0, 0, 0];
['uptime', 'totalmem', 'freemem', 'cpus'].forEach(method => {
exports[method] = () => { throw new Error('os.' + method + ' is not supported.'); };
});
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