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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * Hold PhpMyAdmin\SysInfoLinux class * * @package PhpMyAdmin */ declare(strict_types=1); 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 */ public function loadavg() { $buf = file_get_contents('/proc/stat'); if ($buf === false) { $buf = ''; } $pos = mb_strpos($buf, "\n"); if ($pos === false) { $pos = 0; } $nums = preg_split( "/\s+/", mb_substr( $buf, 0, $pos ) ); return [ 'busy' => (int) $nums[1] + (int) $nums[2] + (int) $nums[3], 'idle' => (int) $nums[4], ]; } /** * Checks whether class is supported in this environment * * @return bool 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 */ public function memory() { preg_match_all( SysInfo::MEMORY_REGEXP, file_get_contents('/proc/meminfo'), $matches ); $mem = array_combine($matches[1], $matches[2]); $defaults = [ '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; } }