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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * Hold PhpMyAdmin\SysInfoLinux class * * @package PhpMyAdmin */ namespace PhpMyAdmin;
use PhpMyAdmin\SysInfo; use PhpMyAdmin\SysInfoBase;
/** * Linux based SysInfo class * * @package PhpMyAdmin */ class SysInfoLinux extends SysInfoBase { public $os = 'Linux';
/** * Gets load information * * @return array with load data */ function loadavg() { $buf = file_get_contents('/proc/stat'); $nums = preg_split( "/\s+/", mb_substr( $buf, 0, mb_strpos($buf, "\n") ) );
return Array( 'busy' => $nums[1] + $nums[2] + $nums[3], 'idle' => intval($nums[4]), ); }
/** * Checks whether class is supported in this environment * * @return true on success */ public function supported() { return @is_readable('/proc/meminfo') && @is_readable('/proc/stat'); }
/** * Gets information about memory usage * * @return array with memory usage data */ function memory() { preg_match_all( SysInfo::MEMORY_REGEXP, file_get_contents('/proc/meminfo'), $matches );
$mem = array_combine($matches[1], $matches[2]);
$defaults = array( 'MemTotal' => 0, 'MemFree' => 0, 'Cached' => 0, 'Buffers' => 0, 'SwapTotal' => 0, 'SwapFree' => 0, 'SwapCached' => 0, );
$mem = array_merge($defaults, $mem);
foreach ($mem as $idx => $value) { $mem[$idx] = intval($value); }
$mem['MemUsed'] = $mem['MemTotal'] - $mem['MemFree'] - $mem['Cached'] - $mem['Buffers'];
$mem['SwapUsed'] = $mem['SwapTotal'] - $mem['SwapFree'] - $mem['SwapCached'];
return $mem; } }
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