1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
<?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;
}
}
|
