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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Hold PMA\libraries\SysInfoLinux class
*
* @package PMA
*/
namespace PMA\libraries;
/**
* Linux based SysInfo class
*
* @package PhpMyAdmin-sysinfo
*/
class SysInfoLinux extends \PMA\libraries\SysInfo
{
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(
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);
$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;
}
}