116 lines
2.5 KiB
PHP
116 lines
2.5 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
declare(strict_types=1);
|
||
|
|
|
||
|
|
namespace PhpMyAdmin\Server\SysInfo;
|
||
|
|
|
||
|
|
use function array_combine;
|
||
|
|
use function array_merge;
|
||
|
|
use function file_get_contents;
|
||
|
|
use function intval;
|
||
|
|
use function is_array;
|
||
|
|
use function is_readable;
|
||
|
|
use function mb_strpos;
|
||
|
|
use function mb_substr;
|
||
|
|
use function preg_match_all;
|
||
|
|
use function preg_split;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Linux based SysInfo class
|
||
|
|
*/
|
||
|
|
class Linux extends Base
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* The OS name
|
||
|
|
*
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
public $os = 'Linux';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets load information
|
||
|
|
*
|
||
|
|
* @return array<string, int> 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,
|
||
|
|
$pos
|
||
|
|
)
|
||
|
|
);
|
||
|
|
|
||
|
|
if (! is_array($nums)) {
|
||
|
|
return ['busy' => 0, 'idle' => 0];
|
||
|
|
}
|
||
|
|
|
||
|
|
return [
|
||
|
|
'busy' => (int) $nums[1] + (int) $nums[2] + (int) $nums[3],
|
||
|
|
'idle' => (int) $nums[4],
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Checks whether class is supported in this environment
|
||
|
|
*/
|
||
|
|
public function supported(): bool
|
||
|
|
{
|
||
|
|
return @is_readable('/proc/meminfo') && @is_readable('/proc/stat');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets information about memory usage
|
||
|
|
*
|
||
|
|
* @return array with memory usage data
|
||
|
|
*/
|
||
|
|
public function memory()
|
||
|
|
{
|
||
|
|
$content = @file_get_contents('/proc/meminfo');
|
||
|
|
if ($content === false) {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
preg_match_all(SysInfo::MEMORY_REGEXP, $content, $matches);
|
||
|
|
|
||
|
|
/** @var array<string, int>|false $mem */
|
||
|
|
$mem = array_combine($matches[1], $matches[2]);
|
||
|
|
if ($mem === false) {
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
$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;
|
||
|
|
}
|
||
|
|
}
|