148 lines
3.5 KiB
PHP
148 lines
3.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Server\SysInfo;
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use COM;
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use function class_exists;
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use function count;
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use function in_array;
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use function is_string;
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use function trim;
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/**
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* Windows NT based SysInfo class
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*/
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class WindowsNt extends Base
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{
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/** @var COM|null */
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private $wmi;
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/**
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* The OS name
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*
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* @var string
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*/
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public $os = 'WINNT';
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/**
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* Constructor to access to wmi database.
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*/
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public function __construct()
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{
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if (! class_exists('COM')) {
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$this->wmi = null;
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return;
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}
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// initialize the wmi object
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$objLocator = new COM('WbemScripting.SWbemLocator');
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$this->wmi = $objLocator->ConnectServer();
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}
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/**
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* Gets load information
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*
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* @return array with load data
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*/
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public function loadavg()
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{
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$sum = 0;
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$buffer = $this->getWMI('Win32_Processor', ['LoadPercentage']);
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foreach ($buffer as $load) {
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$value = $load['LoadPercentage'];
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$sum += $value;
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}
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return ['loadavg' => $sum / count($buffer)];
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}
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/**
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* Checks whether class is supported in this environment
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*/
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public function supported(): bool
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{
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return $this->wmi !== null;
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}
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/**
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* Reads data from WMI
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*
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* @param string $strClass Class to read
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* @param array $strValue Values to read
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*
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* @return array with results
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*/
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private function getWMI($strClass, array $strValue = [])
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{
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$arrData = [];
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$objWEBM = $this->wmi->Get($strClass);
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// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
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$arrProp = $objWEBM->Properties_;
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$arrWEBMCol = $objWEBM->Instances_();
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foreach ($arrWEBMCol as $objItem) {
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$arrInstance = [];
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foreach ($arrProp as $propItem) {
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// phpcs:ignore Squiz.NamingConventions.ValidVariableName.MemberNotCamelCaps
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$name = $propItem->Name;
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if (! empty($strValue) && ! in_array($name, $strValue)) {
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continue;
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}
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$value = $objItem->$name;
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if (is_string($value)) {
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$arrInstance[$name] = trim($value);
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} else {
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$arrInstance[$name] = $value;
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}
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}
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$arrData[] = $arrInstance;
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}
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return $arrData;
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}
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/**
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* Gets information about memory usage
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*
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* @return array with memory usage data
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*/
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public function memory()
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{
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$buffer = $this->getWMI(
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'Win32_OperatingSystem',
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[
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'TotalVisibleMemorySize',
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'FreePhysicalMemory',
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]
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);
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$mem = [];
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$mem['MemTotal'] = $buffer[0]['TotalVisibleMemorySize'];
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$mem['MemFree'] = $buffer[0]['FreePhysicalMemory'];
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$mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'];
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$buffer = $this->getWMI('Win32_PageFileUsage');
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$mem['SwapTotal'] = 0;
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$mem['SwapFree'] = 0;
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$mem['SwapUsed'] = 0;
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$mem['SwapPeak'] = 0;
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foreach ($buffer as $swapdevice) {
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$mem['SwapTotal'] += $swapdevice['AllocatedBaseSize'] * 1024;
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$mem['SwapUsed'] += $swapdevice['CurrentUsage'] * 1024;
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$mem['SwapPeak'] += $swapdevice['PeakUsage'] * 1024;
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}
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$mem['SwapFree'] = $mem['SwapTotal'] - $mem['SwapUsed'];
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return $mem;
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}
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}
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