michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 'use strict';
michael@0: 
michael@0: module.metadata = {
michael@0:   "stability": "unstable"
michael@0: };
michael@0: 
michael@0: const { Cc, Ci } = require('chrome');
michael@0: const system = require('../sdk/system');
michael@0: const runtime = require('../sdk/system/runtime');
michael@0: const oscpu = Cc["@mozilla.org/network/protocol;1?name=http"]
michael@0:                  .getService(Ci.nsIHttpProtocolHandler).oscpu;
michael@0: const hostname = Cc["@mozilla.org/network/dns-service;1"]
michael@0:                  .getService(Ci.nsIDNSService).myHostName;
michael@0: const isWindows = system.platform === 'win32';
michael@0: const endianness = ((new Uint32Array((new Uint8Array([1,2,3,4])).buffer))[0] === 0x04030201) ? 'LE' : 'BE';
michael@0: 
michael@0: /**
michael@0:  * Returns a path to a temp directory
michael@0:  */
michael@0: exports.tmpdir = () => system.pathFor('TmpD');
michael@0: 
michael@0: /**
michael@0:  * Returns the endianness of the architecture: either 'LE' or 'BE'
michael@0:  */
michael@0: exports.endianness = () => endianness;
michael@0: 
michael@0: /**
michael@0:  * Returns hostname of the machine
michael@0:  */
michael@0: exports.hostname = () => hostname;
michael@0: 
michael@0: /**
michael@0:  * Name of the OS type
michael@0:  * Possible values:
michael@0:  * https://developer.mozilla.org/en/OS_TARGET
michael@0:  */
michael@0: exports.type = () => runtime.OS;
michael@0: 
michael@0: /**
michael@0:  * Name of the OS Platform in lower case string.
michael@0:  * Possible values:
michael@0:  * https://developer.mozilla.org/en/OS_TARGET
michael@0:  */
michael@0: exports.platform = () => system.platform;
michael@0: 
michael@0: /**
michael@0:  * Type of processor architecture running:
michael@0:  * 'arm', 'ia32', 'x86', 'x64'
michael@0:  */
michael@0: exports.arch = () => system.architecture;
michael@0: 
michael@0: /**
michael@0:  * Returns the operating system release.
michael@0:  */
michael@0: exports.release = () => {
michael@0:   let match = oscpu.match(/(\d[\.\d]*)/);
michael@0:   return match && match.length > 1 ? match[1] : oscpu;
michael@0: };
michael@0: 
michael@0: /**
michael@0:  * Returns EOL character for the OS
michael@0:  */
michael@0: exports.EOL = isWindows ? '\r\n' : '\n';
michael@0: 
michael@0: /**
michael@0:  * Returns [0, 0, 0], as this is not implemented.
michael@0:  */
michael@0: exports.loadavg = () => [0, 0, 0];
michael@0: 
michael@0: ['uptime', 'totalmem', 'freemem', 'cpus'].forEach(method => {
michael@0:   exports[method] = () => { throw new Error('os.' + method + ' is not supported.'); };
michael@0: });