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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
<?php
/**
* @author Andreas Fischer <bantu@owncloud.com>
* @author Clark Tomlinson <fallen013@gmail.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Otto Sabart <ottosabart@seberm.com>
* @author Robin Appelman <icewind@owncloud.com>
*
* @copyright Copyright (c) 2016, ownCloud, Inc.
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Memcache;
use OCP\IMemcache;
class APC extends Cache implements IMemcache {
use CASTrait {
cas as casEmulated;
}
use CADTrait;
public function get($key) {
$result = apc_fetch($this->getPrefix() . $key, $success);
if (!$success) {
return null;
}
return $result;
}
public function set($key, $value, $ttl = 0) {
return apc_store($this->getPrefix() . $key, $value, $ttl);
}
public function hasKey($key) {
return apc_exists($this->getPrefix() . $key);
}
public function remove($key) {
return apc_delete($this->getPrefix() . $key);
}
public function clear($prefix = '') {
$ns = $this->getPrefix() . $prefix;
$ns = preg_quote($ns, '/');
$iter = new \APCIterator('user', '/^' . $ns . '/', APC_ITER_KEY);
return apc_delete($iter);
}
/**
* Set a value in the cache if it's not already stored
*
* @param string $key
* @param mixed $value
* @param int $ttl Time To Live in seconds. Defaults to 60*60*24
* @return bool
*/
public function add($key, $value, $ttl = 0) {
return apc_add($this->getPrefix() . $key, $value, $ttl);
}
/**
* Increase a stored number
*
* @param string $key
* @param int $step
* @return int | bool
*/
public function inc($key, $step = 1) {
$this->add($key, 0);
return apc_inc($this->getPrefix() . $key, $step);
}
/**
* Decrease a stored number
*
* @param string $key
* @param int $step
* @return int | bool
*/
public function dec($key, $step = 1) {
return apc_dec($this->getPrefix() . $key, $step);
}
/**
* Compare and set
*
* @param string $key
* @param mixed $old
* @param mixed $new
* @return bool
*/
public function cas($key, $old, $new) {
// apc only does cas for ints
if (is_int($old) and is_int($new)) {
return apc_cas($this->getPrefix() . $key, $old, $new);
} else {
return $this->casEmulated($key, $old, $new);
}
}
static public function isAvailable() {
if (!extension_loaded('apc')) {
return false;
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enabled')) {
return false;
} elseif (!\OC::$server->getIniWrapper()->getBool('apc.enable_cli') && \OC::$CLI) {
return false;
} else {
return true;
}
}
}
if (!function_exists('apc_exists')) {
function apc_exists($keys) {
$result = false;
apc_fetch($keys, $result);
return $result;
}
}
|
