initial commit

html/phpmyad/libraries/sysinfo.lib.php

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+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Library for extracting information about system memory and cpu. Currently supports all
+ * Windows and Linux plattforms
+ *
+ * This code is based on the OS Classes from the phpsysinfo project (http://phpsysinfo.sourceforge.net/)
+ *
+ * @package PhpMyAdmin
+ */
+
+/**
+ * @return array
+ */
+function getSysInfo()
+{
+    $supported = array('Linux', 'WINNT');
+
+    $sysinfo = array();
+
+    if (in_array(PHP_OS, $supported)) {
+        return eval("return new ".PHP_OS."();");
+    }
+
+    return $sysinfo;
+}
+
+
+class WINNT
+{
+    private $_wmi;
+
+    public $os = 'WINNT';
+
+    public function __construct() {
+        // initialize the wmi object
+        $objLocator = new COM('WbemScripting.SWbemLocator');
+        $this->_wmi = $objLocator->ConnectServer();
+    }
+
+    function loadavg() {
+        $loadavg = "";
+        $sum = 0;
+        $buffer = $this->_getWMI('Win32_Processor', array('LoadPercentage'));
+
+        foreach ($buffer as $load) {
+            $value = $load['LoadPercentage'];
+            $loadavg .= $value.' ';
+            $sum += $value;
+        }
+
+        return array('loadavg' => $sum / count($buffer));
+    }
+
+    private function _getWMI($strClass, $strValue = array()) {
+        $arrData = array();
+        $value = "";
+
+        $objWEBM = $this->_wmi->Get($strClass);
+        $arrProp = $objWEBM->Properties_;
+        $arrWEBMCol = $objWEBM->Instances_();
+        foreach ($arrWEBMCol as $objItem) {
+            if (is_array($arrProp)) {
+                reset($arrProp);
+            }
+            $arrInstance = array();
+            foreach ($arrProp as $propItem) {
+                if ( empty($strValue)) {
+                    eval("\$value = \$objItem->".$propItem->Name.";");
+                    $arrInstance[$propItem->Name] = trim($value);
+                } else {
+                    if (in_array($propItem->Name, $strValue)) {
+                        eval("\$value = \$objItem->".$propItem->Name.";");
+                        $arrInstance[$propItem->Name] = trim($value);
+                    }
+                }
+            }
+            $arrData[] = $arrInstance;
+        }
+        return $arrData;
+    }
+
+
+    function memory() {
+        $buffer = $this->_getWMI("Win32_OperatingSystem", array('TotalVisibleMemorySize', 'FreePhysicalMemory'));
+        $mem = Array();
+        $mem['MemTotal'] = $buffer[0]['TotalVisibleMemorySize'];
+        $mem['MemFree'] = $buffer[0]['FreePhysicalMemory'];
+        $mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'];
+
+        $buffer = $this->_getWMI('Win32_PageFileUsage');
+
+        $mem['SwapTotal'] = 0;
+        $mem['SwapUsed'] = 0;
+        $mem['SwapPeak'] = 0;
+
+        foreach ($buffer as $swapdevice) {
+            $mem['SwapTotal'] += $swapdevice['AllocatedBaseSize'] * 1024;
+            $mem['SwapUsed'] += $swapdevice['CurrentUsage'] * 1024;
+            $mem['SwapPeak'] += $swapdevice['PeakUsage'] * 1024;
+        }
+
+        return $mem;
+    }
+}
+
+class Linux
+{
+    public $os = 'Linux';
+
+    function loadavg() {
+        $buf = file_get_contents('/proc/stat');
+        $nums=preg_split("/\s+/", substr($buf, 0, strpos($buf, "\n")));
+        return Array('busy' => $nums[1]+$nums[2]+$nums[3], 'idle' => intval($nums[4]));
+    }
+
+    function memory() {
+        preg_match_all('/^(MemTotal|MemFree|Cached|Buffers|SwapCached|SwapTotal|SwapFree):\s+(.*)\s*kB/im', file_get_contents('/proc/meminfo'), $matches);
+
+        $mem = array_combine( $matches[1], $matches[2] );
+        $mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'] - $mem['Cached'] - $mem['Buffers'];
+        $mem['SwapUsed'] = $mem['SwapTotal'] - $mem['SwapFree'] - $mem['SwapCached'];
+
+        foreach ($mem as $idx=>$value)
+            $mem[$idx] = intval($value);
+
+        return $mem;
+    }
+}