|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* This file contains functions that deal with getting and setting cache values. |
|
5
|
|
|
* |
|
6
|
|
|
* @name ElkArte Forum |
|
7
|
|
|
* @copyright ElkArte Forum contributors |
|
8
|
|
|
* @license BSD http://opensource.org/licenses/BSD-3-Clause |
|
9
|
|
|
* |
|
10
|
|
|
* @version 1.1 Release Candidate 1 |
|
11
|
|
|
* |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
namespace ElkArte\sources\subs\CacheMethod; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Alternative PHP Cache or APC / APCu |
|
18
|
|
|
*/ |
|
19
|
|
|
class Apc extends Cache_Method_Abstract |
|
20
|
|
|
{ |
|
21
|
|
|
/** |
|
22
|
|
|
* {@inheritdoc} |
|
23
|
|
|
*/ |
|
24
|
|
|
protected $title = 'Alternative PHP Cache'; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* Whether to use the APCu functions or the original APC ones. |
|
28
|
|
|
* |
|
29
|
|
|
* @var bool |
|
30
|
|
|
*/ |
|
31
|
|
|
protected $apcu = false; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* {@inheritdoc} |
|
35
|
|
|
*/ |
|
36
|
2 |
|
public function __construct($options) |
|
37
|
|
|
{ |
|
38
|
2 |
|
parent::__construct($options); |
|
39
|
2 |
|
$this->apcu = function_exists('apcu_store'); |
|
40
|
2 |
|
} |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* {@inheritdoc} |
|
44
|
|
|
*/ |
|
45
|
1 |
|
public function exists($key) |
|
46
|
|
|
{ |
|
47
|
1 |
|
$this->get($key); |
|
48
|
1 |
|
return !$this->is_miss; |
|
49
|
|
|
} |
|
50
|
|
|
|
|
51
|
|
|
/** |
|
52
|
|
|
* {@inheritdoc} |
|
53
|
|
|
*/ |
|
54
|
1 |
|
public function put($key, $value, $ttl = 120) |
|
55
|
|
|
{ |
|
56
|
1 |
|
$prefixedKey = $this->getprefixedKey($key); |
|
57
|
|
|
// An extended key is needed to counteract a bug in APC. |
|
58
|
1 |
|
if ($this->apcu) |
|
59
|
1 |
|
{ |
|
60
|
1 |
|
if ($value === null) |
|
61
|
1 |
|
apcu_delete($prefixedKey); |
|
62
|
|
|
else |
|
63
|
1 |
|
apcu_store($prefixedKey, $value, $ttl); |
|
64
|
1 |
|
} |
|
65
|
|
|
else |
|
66
|
|
|
{ |
|
67
|
|
|
if ($value === null) |
|
68
|
|
|
apc_delete($prefixedKey); |
|
69
|
|
|
else |
|
70
|
|
|
apc_store($prefixedKey, $value, $ttl); |
|
71
|
|
|
} |
|
72
|
1 |
|
} |
|
73
|
|
|
|
|
74
|
|
|
/** |
|
75
|
|
|
* {@inheritdoc} |
|
76
|
|
|
*/ |
|
77
|
1 |
|
public function get($key, $ttl = 120) |
|
78
|
|
|
{ |
|
79
|
1 |
|
$prefixedKey = $this->getprefixedKey($key); |
|
80
|
1 |
|
$success = false; |
|
81
|
1 |
|
if ($this->apcu) |
|
82
|
1 |
|
$result = apcu_fetch($prefixedKey, $success); |
|
83
|
|
|
else |
|
84
|
|
|
$result = apc_fetch($prefixedKey, $success); |
|
85
|
1 |
|
$this->is_miss = !$success; |
|
86
|
|
|
|
|
87
|
|
|
/* |
|
88
|
|
|
* Let's be conssistent, yes? All other cache methods |
|
89
|
|
|
* supported by ElkArte return null on failure to grab |
|
90
|
|
|
* the specified cache entry. |
|
91
|
|
|
*/ |
|
92
|
1 |
|
if ($this->is_miss) |
|
93
|
1 |
|
return; |
|
94
|
|
|
|
|
95
|
1 |
|
return $result; |
|
96
|
|
|
} |
|
97
|
|
|
|
|
98
|
|
|
/** |
|
99
|
|
|
* {@inheritdoc} |
|
100
|
|
|
*/ |
|
101
|
1 |
|
public function clean($type = '') |
|
102
|
|
|
{ |
|
103
|
1 |
|
if ($this->apcu) |
|
104
|
1 |
|
apcu_clear_cache(); |
|
105
|
|
|
// If passed a type, clear that type out |
|
106
|
|
|
elseif ($type === '' || $type === 'data') |
|
107
|
|
|
{ |
|
108
|
|
|
apc_clear_cache('user'); |
|
109
|
|
|
apc_clear_cache('system'); |
|
110
|
|
|
} |
|
111
|
|
|
elseif ($type === 'user') |
|
112
|
|
|
apc_clear_cache('user'); |
|
113
|
1 |
|
} |
|
114
|
|
|
|
|
115
|
|
|
/** |
|
116
|
|
|
* {@inheritdoc} |
|
117
|
|
|
*/ |
|
118
|
2 |
|
public function isAvailable() |
|
119
|
|
|
{ |
|
120
|
2 |
|
return function_exists('apc_store') || function_exists('apcu_store'); |
|
121
|
|
|
} |
|
122
|
|
|
|
|
123
|
|
|
/** |
|
124
|
|
|
* {@inheritdoc} |
|
125
|
|
|
*/ |
|
126
|
|
|
public function details() |
|
127
|
|
|
{ |
|
128
|
|
|
return array('title' => $this->title, 'version' => phpversion($this->apcu ? 'apcu' : 'apc')); |
|
129
|
|
|
} |
|
130
|
|
|
} |
|
131
|
|
|
|
elkarte /
Elkarte
