dockerContainerStats() fixed issue cpu_percent, win exec

CHANGELOG.md

@@ -100,6 +100,7 @@ Other changes
 
 | Version        | Date           | Comment  |
 | -------------- | -------------- | -------- |
+| 3.48.2         | 2018-11-18     | `dockerContainerStats()` fixed issue `cpu_percent`, win exec |
 | 3.48.1         | 2018-11-17     | `docker...()` fixed issue parsing docker socket JSON |
 | 3.48.0         | 2018-11-17     | `diskLayout()` better interface detection (WIN), `osInfo()` added build, serial |
 | 3.47.0         | 2018-11-06     | `versions()` added docker, postfix |

lib/battery.js

@@ -25,10 +25,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 module.exports = function (callback) {
 
   return new Promise((resolve) => {
@@ -162,7 +158,7 @@ module.exports = function (callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' Path Win32_Battery Get BatteryStatus, DesignCapacity, EstimatedChargeRemaining /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' Path Win32_Battery Get BatteryStatus, DesignCapacity, EstimatedChargeRemaining /value', util.execOptsWin, function (error, stdout) {
             if (stdout) {
               let lines = stdout.split('\r\n');
               let status = util.getValue(lines, 'BatteryStatus', '=').trim();

lib/cpu.js

@@ -26,10 +26,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 let _cpu_speed = '0.00';
 let _current_cpu = {
   user: 0,
@@ -307,7 +303,7 @@ function getCpu() {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' cpu get name, description, revision, l2cachesize, l3cachesize, manufacturer, currentclockspeed, maxclockspeed /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' cpu get name, description, revision, l2cachesize, l3cachesize, manufacturer, currentclockspeed, maxclockspeed /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.split('\r\n');
               let name = util.getValue(lines, 'name', '=') || '';
@@ -556,7 +552,7 @@ function cpuTemperature(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' /namespace:\\\\root\\wmi PATH MSAcpi_ThermalZoneTemperature get CurrentTemperature', opts, function (error, stdout) {
+          exec(util.getWmic() + ' /namespace:\\\\root\\wmi PATH MSAcpi_ThermalZoneTemperature get CurrentTemperature', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let sum = 0;
               let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
@@ -594,7 +590,7 @@ function cpuFlags(callback) {
       let result = '';
       if (_windows) {
         try {
-          exec('reg query "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0" /v FeatureSet', opts, function (error, stdout) {
+          exec('reg query "HKEY_LOCAL_MACHINE\\HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0" /v FeatureSet', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let flag_hex = stdout.split('0x').pop().trim();
               let flag_bin_unpadded = parseInt(flag_hex, 16).toString(2);
@@ -784,7 +780,7 @@ function cpuCache(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' cpu get l2cachesize, l3cachesize /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' cpu get l2cachesize, l3cachesize /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.split('\r\n');
               result.l1d = 0;

lib/docker.js

@@ -120,6 +120,7 @@ function docker_calcCPUPercent(cpu_stats, precpu_stats) {
    * @property {Array}  cpu_usage.percpu_usage
    */
 
+  if (!_windows) {
     let cpuPercent = 0.0;
     // calculate the change for the cpu usage of the container in between readings
     let cpuDelta = cpu_stats.cpu_usage.total_usage - precpu_stats.cpu_usage.total_usage;
@@ -127,10 +128,24 @@ function docker_calcCPUPercent(cpu_stats, precpu_stats) {
     let systemDelta = cpu_stats.system_cpu_usage - precpu_stats.system_cpu_usage;
 
     if (systemDelta > 0.0 && cpuDelta > 0.0) {
+      // calculate the change for the cpu usage of the container in between readings
       cpuPercent = (cpuDelta / systemDelta) * cpu_stats.cpu_usage.percpu_usage.length * 100.0;
     }
 
     return cpuPercent;
+  } else {
+    let nanoSecNow = util.nanoSeconds();
+    let cpuPercent = 0.0;
+    if (_docker_last_read > 0) {
+      let possIntervals = (nanoSecNow - _docker_last_read) //  / 100 * os.cpus().length;
+      let intervalsUsed = cpu_stats.cpu_usage.total_usage - precpu_stats.cpu_usage.total_usage;
+      if (possIntervals > 0) {
+        cpuPercent = 100.0 * intervalsUsed / possIntervals;
+      }
+    }
+    _docker_last_read = nanoSecNow;
+    return cpuPercent;
+  }
 }
 
 function docker_calcNetworkIO(networks) {

lib/filesystem.js

@@ -27,10 +27,6 @@ const _sunos = (_platform === 'sunos');
 
 const NOT_SUPPORTED = 'not supported';
 
-const opts = {
-  windowsHide: true
-};
-
 let _fs_speed = {};
 let _disk_io = {};
 
@@ -79,7 +75,7 @@ function fsSize(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' logicaldisk get Caption,FileSystem,FreeSpace,Size', opts, function (error, stdout) {
+          exec(util.getWmic() + ' logicaldisk get Caption,FileSystem,FreeSpace,Size', util.execOptsWin, function (error, stdout) {
             let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
             lines.forEach(function (line) {
               if (line !== '') {
@@ -264,7 +260,7 @@ function blockDevices(callback) {
       if (_windows) {
         let drivetypes = ['Unknown', 'NoRoot', 'Removable', 'Local', 'Network', 'CD/DVD', 'RAM'];
         try {
-          exec(util.getWmic() + ' logicaldisk get Caption,Description,DeviceID,DriveType,FileSystem,FreeSpace,Name,Size,VolumeName,VolumeSerialNumber /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' logicaldisk get Caption,Description,DeviceID,DriveType,FileSystem,FreeSpace,Name,Size,VolumeName,VolumeSerialNumber /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let devices = stdout.toString().split(/\n\s*\n/);
               devices.forEach(function (device) {

lib/graphics.js

@@ -24,10 +24,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 let _resolutionx = 0;
 let _resolutiony = 0;
 let _pixeldepth = 0;
@@ -154,7 +150,7 @@ function graphics(callback) {
               } else if (parts[1].toLowerCase().indexOf(' inc.') >= 0) {
                 if ((parts[1].match(new RegExp(']', 'g')) || []).length > 1) {
                   currentController.vendor = parts[1].substr(0, parts[1].toLowerCase().indexOf(']') + 1).trim();
-                  currentController.model = parts[1].substr(parts[1].toLowerCase().indexOf(']')+1, 200).trim().split('(')[0];
+                  currentController.model = parts[1].substr(parts[1].toLowerCase().indexOf(']') + 1, 200).trim().split('(')[0];
                 } else {
                   currentController.vendor = parts[1].substr(0, parts[1].toLowerCase().indexOf(' inc.') + 5).trim();
                   currentController.model = parts[1].substr(parts[1].toLowerCase().indexOf(' inc.') + 5, 200).trim().split('(')[0];
@@ -339,11 +335,11 @@ function graphics(callback) {
       if (_windows) {
         // https://blogs.technet.microsoft.com/heyscriptingguy/2013/10/03/use-powershell-to-discover-multi-monitor-information/
         try {
-          exec(util.getWmic() + ' path win32_VideoController get AdapterCompatibility, AdapterDACType, name, PNPDeviceID, CurrentVerticalResolution, CurrentHorizontalResolution, CurrentNumberOfColors, AdapterRAM, CurrentBitsPerPixel, CurrentRefreshRate, MinRefreshRate, MaxRefreshRate, VideoMemoryType /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' path win32_VideoController get AdapterCompatibility, AdapterDACType, name, PNPDeviceID, CurrentVerticalResolution, CurrentHorizontalResolution, CurrentNumberOfColors, AdapterRAM, CurrentBitsPerPixel, CurrentRefreshRate, MinRefreshRate, MaxRefreshRate, VideoMemoryType /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let csections = stdout.split(/\n\s*\n/);
               result.controllers = parseLinesWindowsControllers(csections);
-              exec(util.getWmic() + ' path win32_desktopmonitor get Caption, MonitorManufacturer, MonitorType, ScreenWidth, ScreenHeight /value', opts, function (error, stdout) {
+              exec(util.getWmic() + ' path win32_desktopmonitor get Caption, MonitorManufacturer, MonitorType, ScreenWidth, ScreenHeight /value', util.execOptsWin, function (error, stdout) {
                 let dsections = stdout.split(/\n\s*\n/);
                 if (!error) {
                   result.displays = parseLinesWindowsDisplays(dsections);

lib/index.js

@@ -15,69 +15,6 @@
 // ----------------------------------------------------------------------------------
 // License:       MIT
 // ==================================================================================
-//
-// Sections
-// --------------------------------
-// 1. General
-// 2. System (HW)
-// 3. OS - Operating System
-// 4. CPU
-// 5. Memory
-// 6. Battery
-// 7. Graphics
-// 8. File System
-// 9. Network
-// 10. Processes
-// 11. Users/Sessions
-// 12. Internet
-// 13. Docker
-// 14. GetAll - get all data
-//
-// ==================================================================================
-//
-// Installation
-// --------------------------------
-//
-// # npm install systeminformation --save
-//
-// Since version 2.0 systeminformation has no more dependencies.
-//
-// ==================================================================================
-//
-// Usage
-// --------------------------------
-// All functions (except `version` and `time`) are asynchronous functions. Here a small example how to use them:
-//
-// var si = require('systeminformation');
-//
-// // callback style
-// si.cpu(function(data) {
-//	  console.log('CPU-Information:');
-//	  console.log(data);
-// })
-//
-// // promises style
-// si.cpu()
-// 	.then(data => console.log(data))
-// 	.catch(error => console.error(error));
-//
-// ==================================================================================
-//
-// Comments
-// --------------------------------
-//
-// This library is still work in progress. Version 3 comes with further improvements. First it
-// requires now node.js version 4.0 and above. Another big change is, that all functions now
-// return promises. You can use them like before with callbacks OR with promises
-// (see example in this documentation). I am sure, there is for sure room for improvement.
-// I was only able to test it on several Debian, Raspbian, Ubuntu distributions as well as
-// OS X (Mavericks, Yosemite, El Captain) and some Windows machines.
-// Since version 2 nearly all functionality is available for OS X/Darwin platforms.
-// In Version 3 I started to add (limited!) windows support.
-//
-// Comments, suggestions & reports are very welcome!
-//
-// ==================================================================================
 
 // ----------------------------------------------------------------------------------
 // Dependencies
@@ -105,7 +42,15 @@ const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
 // ----------------------------------------------------------------------------------
-// 1. General
+// init
+// ----------------------------------------------------------------------------------
+
+if (_windows) {
+  util.getWinCodepage();
+}
+
+// ----------------------------------------------------------------------------------
+// General
 // ----------------------------------------------------------------------------------
 
 function version() {
@@ -113,7 +58,7 @@ function version() {
 }
 
 // ----------------------------------------------------------------------------------
-// 14. get all
+// Get static and dynamic data (all)
 // ----------------------------------------------------------------------------------
 
 // --------------------------

lib/internet.js

@@ -24,10 +24,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 // --------------------------
 // check if external site is available
 
@@ -141,7 +137,7 @@ function inetLatency(host, callback) {
         });
       }
       if (_sunos) {
-        exec('ping -s -a ' + host + ' 56 2 | grep avg', {timeout: 3000}, function (error, stdout) {
+        exec('ping -s -a ' + host + ' 56 2 | grep avg', { timeout: 3000 }, function (error, stdout) {
           let result = -1;
           if (!error) {
             const line = stdout.toString().split('=');
@@ -159,7 +155,7 @@ function inetLatency(host, callback) {
       if (_windows) {
         let result = -1;
         try {
-          exec('ping ' + host + ' -n 1', opts, function (error, stdout) {
+          exec('ping ' + host + ' -n 1', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.toString().split('\r\n');
               lines.shift();

lib/memory.js

@@ -25,10 +25,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 const OSX_RAM_manufacturers = {
   '0x014F': 'Transcend Information',
   '0x2C00': 'Micron Technology Inc.',
@@ -200,7 +196,7 @@ function mem(callback) {
         let swaptotal = 0;
         let swapused = 0;
         try {
-          exec(util.getWmic() + ' pagefile get AllocatedBaseSize, CurrentUsage', opts, function (error, stdout) {
+          exec(util.getWmic() + ' pagefile get AllocatedBaseSize, CurrentUsage', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0);
               lines.forEach(function (line) {
@@ -338,7 +334,7 @@ function memLayout(callback) {
         const FormFactors = 'Unknown|Other|SIP|DIP|ZIP|SOJ|Proprietary|SIMM|DIMM|TSOP|PGA|RIMM|SODIMM|SRIMM|SMD|SSMP|QFP|TQFP|SOIC|LCC|PLCC|BGA|FPBGA|LGA'.split('|');
 
         try {
-          exec(util.getWmic() + ' memorychip get BankLabel, Capacity, ConfiguredClockSpeed, ConfiguredVoltage, MaxVoltage, MinVoltage, DataWidth, FormFactor, Manufacturer, MemoryType, PartNumber, SerialNumber, Speed, Tag /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' memorychip get BankLabel, Capacity, ConfiguredClockSpeed, ConfiguredVoltage, MaxVoltage, MinVoltage, DataWidth, FormFactor, Manufacturer, MemoryType, PartNumber, SerialNumber, Speed, Tag /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let devices = stdout.toString().split('BankL');
               devices.shift();

lib/network.js

@@ -27,11 +27,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true,
-  maxBuffer: 1024 * 2000
-};
-
 let _network = {};
 let _default_iface;
 let _mac = {};
@@ -368,14 +363,14 @@ function networkStats(iface, callback) {
           let nics = [];
           cmd = util.getWmic() + ' nic get MACAddress, name, NetEnabled /value';
           try {
-            exec(cmd, opts, function (error, stdout) {
+            exec(cmd, util.execOptsWin, function (error, stdout) {
               if (!error) {
                 const nsections = stdout.split(/\n\s*\n/);
                 nics = parseLinesWindowsNics(nsections);
 
                 // Performance Data
                 cmd = util.getWmic() + ' path Win32_PerfRawData_Tcpip_NetworkInterface Get name,BytesReceivedPersec,BytesSentPersec,BytesTotalPersec /value';
-                exec(cmd, opts, function (error, stdout) {
+                exec(cmd, util.execOptsWin, function (error, stdout) {
                   if (!error) {
                     const psections = stdout.split(/\n\s*\n/);
                     perfData = parseLinesWindowsPerfData(psections);
@@ -589,7 +584,7 @@ function networkConnections(callback) {
       if (_windows) {
         let cmd = 'netstat -na';
         try {
-          exec(cmd, opts, function (error, stdout) {
+          exec(cmd, util.execOptsWin, function (error, stdout) {
             if (!error) {
 
               let lines = stdout.toString().split('\r\n');

lib/osinfo.js

@@ -26,10 +26,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 const NOT_SUPPORTED = 'not supported';
 
 // --------------------------
@@ -253,7 +249,7 @@ function osInfo(callback) {
         result.logofile = getLogoFile();
         result.release = result.kernel;
         try {
-          exec(util.getWmic() + ' os get /value', opts, function (error, stdout) {
+          util.execWin(util.getWmic() + ' os get /value', util.execOptsWin, function (error, stdout) {
             let lines = stdout.toString().split('\r\n');
             result.distro = util.getValue(lines, 'Caption', '=').trim();
             result.serial = util.getValue(lines, 'SerialNumber', '=').trim();

lib/processes.js

@@ -149,7 +149,7 @@ function services(srv, callback) {
         }
         if (_windows) {
           try {
-            exec(util.getWmic() + ' service get /value', { maxBuffer: 1024 * 1000, windowsHide: true }, function (error, stdout) {
+            exec(util.getWmic() + ' service get /value', util.execOptsWin, function (error, stdout) {
               if (!error) {
                 let serviceSections = stdout.split(/\n\s*\n/);
                 for (let i = 0; i < serviceSections.length; i++) {
@@ -615,7 +615,7 @@ function processes(callback) {
         }
         if (_windows) {
           try {
-            exec(util.getWmic() + ' process get /value', { maxBuffer: 1024 * 2000, windowsHide: true }, function (error, stdout) {
+            exec(util.getWmic() + ' process get /value', util.execOptsWin, function (error, stdout) {
               if (!error) {
                 let processSections = stdout.split(/\n\s*\n/);
                 let procs = [];

lib/system.js

@@ -25,10 +25,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 function system(callback) {
 
   return new Promise((resolve) => {
@@ -189,7 +185,7 @@ function system(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' csproduct get /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' csproduct get /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               // let lines = stdout.split('\r\n').filter(line => line.trim() !== '').filter((line, idx) => idx > 0)[0].trim().split(/\s\s+/);
               let lines = stdout.split('\r\n');
@@ -198,7 +194,7 @@ function system(callback) {
               result.version = util.getValue(lines, 'version', '=');
               result.serial = util.getValue(lines, 'identifyingnumber', '=');
               result.uuid = util.getValue(lines, 'uuid', '=');
-              exec(util.getWmic() + ' /namespace:\\\\root\\wmi path MS_SystemInformation get /value', opts, function (error, stdout) {
+              exec(util.getWmic() + ' /namespace:\\\\root\\wmi path MS_SystemInformation get /value', util.execOptsWin, function (error, stdout) {
                 if (!error) {
                   let lines = stdout.split('\r\n');
                   result.sku = util.getValue(lines, 'systemsku', '=');
@@ -267,7 +263,7 @@ function bios(callback) {
       if (_windows) {
         // TODO: check BIOS windows
         try {
-          exec(util.getWmic() + ' bios get /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' bios get /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.toString().split('\r\n');
               const description = util.getValue(lines, 'description', '=');
@@ -361,7 +357,7 @@ function baseboard(callback) {
       }
       if (_windows) {
         try {
-          exec(util.getWmic() + ' baseboard get /value', opts, function (error, stdout) {
+          exec(util.getWmic() + ' baseboard get /value', util.execOptsWin, function (error, stdout) {
             if (!error) {
               let lines = stdout.toString().split('\r\n');
 

lib/users.js

@@ -24,10 +24,6 @@ const _freebsd = (_platform === 'freebsd');
 const _openbsd = (_platform === 'openbsd');
 const _sunos = (_platform === 'sunos');
 
-const opts = {
-  windowsHide: true
-};
-
 // --------------------------
 // array of users online = sessions
 
@@ -150,10 +146,10 @@ function parseUsersWin(lines) {
   const headerDelimiter = [];
   if (header) {
     const start = (header[0] === ' ') ? 1 : 0;
-    headerDelimiter.push(start-1);
+    headerDelimiter.push(start - 1);
     let nextSpace = 0;
-    for (let i = start+1; i < header.length; i++) {
+    for (let i = start + 1; i < header.length; i++) {
-      if (header[i] === ' ' && header[i-1] === ' ') {
+      if (header[i] === ' ' && header[i - 1] === ' ') {
         nextSpace = i;
       } else {
         if (nextSpace) {
@@ -165,9 +161,9 @@ function parseUsersWin(lines) {
   }
   for (let i = 1; i < lines.length; i++) {
     if (lines[i].trim()) {
-      const user = lines[i].substring(headerDelimiter[0]+1, headerDelimiter[1]).trim() || '';
+      const user = lines[i].substring(headerDelimiter[0] + 1, headerDelimiter[1]).trim() || '';
-      const tty = lines[i].substring(headerDelimiter[1]+1, headerDelimiter[2] - 2).trim() || '';
+      const tty = lines[i].substring(headerDelimiter[1] + 1, headerDelimiter[2] - 2).trim() || '';
-      const dateTime = util.parseDateTime(lines[i].substring(headerDelimiter[5]+1, 2000).trim()) || '';
+      const dateTime = util.parseDateTime(lines[i].substring(headerDelimiter[5] + 1, 2000).trim()) || '';
       result.push({
         user: user,
         tty: tty,
@@ -250,7 +246,7 @@ function users(callback) {
       }
       if (_windows) {
         try {
-          exec('query user', opts, function (error, stdout) {
+          exec('query user', util.execOptsWin, function (error, stdout) {
             if (stdout) {
               // lines / split
               let lines = stdout.toString().split('\r\n');

lib/util.js

@@ -15,6 +15,21 @@
 const os = require('os');
 const fs = require('fs');
 const spawn = require('child_process').spawn;
+const exec = require('child_process').exec;
+const execSync = require('child_process').execSync;
+
+let _platform = process.platform;
+const _windows = (_platform === 'win32');
+
+let _cores = 0;
+let wmic = '';
+let codepageWin = '';
+
+const execOptsWin = {
+  windowsHide: true,
+  maxBuffer: 1024 * 2000,
+  encoding: 'UTF-8'
+};
 
 let _cores = 0;
 let wmic = '';
@@ -170,8 +185,46 @@ function powerShell(cmd) {
   });
 }
 
+function getWinCodepage() {
+  if (_windows) {
+    if (!codepageWin) {
+      try {
+        const stdout = execSync('chcp');
+        const lines = stdout.toString().split('\r\n');
+        const parts = lines[0].split(':');
+        codepageWin = parts.length > 1 ? parts[1].replace('.', '') : '';
+      } catch (err) {
+        codepageWin = '437';
+      }
+    }
+    return codepageWin;
+  }
+}
+
+function execWin(cmd, opts, callback) {
+  if (!callback) {
+    callback = opts;
+    opts = execOptsWin;
+  }
+  newCmd = 'chcp 65001 > nul && cmd /C ' + cmd + ' && chcp ' + codepageWin + ' > nul';
+  exec(newCmd, util.execOptsWin, function (error, stdout) {
+    callback(error, stdout)
+  })
+}
+
+function nanoSeconds() {
+  const time = process.hrtime();
+  if (!Array.isArray(time) || time.length !== 2) {
+    return 0;
+  }
+  return +time[0] * 1e9 + +time[1];
+}
+
 function noop() { }
 
+exports.execOptsWin = execOptsWin;
+exports.getWinCodepage = getWinCodepage;
+exports.execWin = execWin;
 exports.isFunction = isFunction;
 exports.unique = unique;
 exports.sortByKey = sortByKey;
@@ -182,4 +235,5 @@ exports.parseDateTime = parseDateTime;
 exports.findObjectByKey = findObjectByKey;
 exports.getWmic = getWmic;
 exports.powerShell = powerShell;
+exports.nanoSeconds = nanoSeconds;
 exports.noop = noop;