Viewing file:  sysinfo.lib.php (5.46 KB) -rw-rw-r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?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
*/
/**
* Wrap the PHP_OS constant
*
* @return string
*/
function PMA_getSysInfoOs()
{
$php_os = PHP_OS;
// look for common UNIX-like systems
$unix_like = array('FreeBSD');
if (in_array($php_os, $unix_like)) {
$php_os = 'Linux';
}
return ucfirst($php_os);
}
/**
* @return array
*/
function PMA_getSysInfo()
{
$php_os = PMA_getSysInfoOs();
$supported = array('Linux', 'WINNT', 'SunOS');
$sysinfo = array();
if (in_array($php_os, $supported)) {
return eval("return new PMA_sysinfo".$php_os."();");
}
return new PMA_Sysinfo_Default;
}
class PMA_sysinfoWinnt
{
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 PMA_sysinfoLinux
{
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;
}
}
class PMA_sysinfoSunos
{
public $os = 'SunOS';
private function _kstat($key)
{
if ($m = shell_exec('kstat -p d '.$key)) {
list($key, $value) = preg_split("/\t/", trim($m), 2);
return $value;
} else {
return '';
}
}
public function loadavg() {
$load1 = $this->_kstat('unix:0:system_misc:avenrun_1min');
return array('loadavg' => $load1);
}
public function memory() {
preg_match_all('/^(MemTotal|MemFree|Cached|Buffers|SwapCached|SwapTotal|SwapFree):\s+(.*)\s*kB/im', file_get_contents('/proc/meminfo'), $matches);
$pagesize = $this->_kstat('unix:0:seg_cache:slab_size');
$mem['MemTotal'] = $this->_kstat('unix:0:system_pages:pagestotal') * $pagesize;
$mem['MemUsed'] = $this->_kstat('unix:0:system_pages:pageslocked') * $pagesize;
$mem['MemFree'] = $this->_kstat('unix:0:system_pages:pagesfree') * $pagesize;
$mem['SwapTotal'] = $this->_kstat('unix:0:vminfo:swap_avail') / 1024;
$mem['SwapUsed'] = $this->_kstat('unix:0:vminfo:swap_alloc') / 1024;
$mem['SwapFree'] = $this->_kstat('unix:0:vminfo:swap_free') / 1024;
return $mem;
}
}
class PMA_sysinfoDefault
{
public $os = PHP_OS;
public function loadavg() {
return array('loadavg' => 0);
}
public function memory() {
return array();
}
}
|