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
136
137
138
139
140
141
142
143
144
145
146
147
148
|
<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\cache\driver;
if (!defined('PHPBB_ACM_MEMCACHED_PORT'))
{
define('PHPBB_ACM_MEMCACHED_PORT', 11211);
}
if (!defined('PHPBB_ACM_MEMCACHED_COMPRESS'))
{
define('PHPBB_ACM_MEMCACHED_COMPRESS', true);
}
if (!defined('PHPBB_ACM_MEMCACHED_HOST'))
{
define('PHPBB_ACM_MEMCACHED_HOST', 'localhost');
}
if (!defined('PHPBB_ACM_MEMCACHED'))
{
//can define multiple servers with host1/port1,host2/port2 format
define('PHPBB_ACM_MEMCACHED', PHPBB_ACM_MEMCACHED_HOST . '/' . PHPBB_ACM_MEMCACHED_PORT);
}
/**
* ACM for Memcached
*/
class memcached extends \phpbb\cache\driver\memory
{
/** @var string Extension to use */
protected $extension = 'memcached';
/** @var \Memcached Memcached class */
protected $memcached;
/** @var int Flags */
protected $flags = 0;
/**
* Memcached constructor
*
* @param string $memcached_servers Memcached servers string (optional)
*/
public function __construct($memcached_servers = '')
{
// Call the parent constructor
parent::__construct();
$memcached_servers = $memcached_servers ?: PHPBB_ACM_MEMCACHED;
$this->memcached = new \Memcached();
$this->memcached->setOption(\Memcached::OPT_BINARY_PROTOCOL, true);
// Memcached defaults to using compression, disable if we don't want
// to use it
if (!PHPBB_ACM_MEMCACHED_COMPRESS)
{
$this->memcached->setOption(\Memcached::OPT_COMPRESSION, false);
}
$server_list = [];
foreach (explode(',', $memcached_servers) as $u)
{
if (preg_match('#(.*)/(\d+)#', $u, $parts))
{
$server_list[] = [trim($parts[1]), (int) trim($parts[2])];
}
}
$this->memcached->addServers($server_list);
if (empty($server_list) || empty($this->memcached->getStats()))
{
trigger_error('Could not connect to memcached server(s).');
}
}
/**
* {@inheritDoc}
*/
public function unload()
{
parent::unload();
unset($this->memcached);
}
/**
* {@inheritDoc}
*/
public function purge()
{
$this->memcached->flush();
parent::purge();
}
/**
* Fetch an item from the cache
*
* @param string $var Cache key
*
* @return mixed Cached data
*/
protected function _read($var)
{
return $this->memcached->get($this->key_prefix . $var);
}
/**
* Store data in the cache
*
* @param string $var Cache key
* @param mixed $data Data to store
* @param int $ttl Time-to-live of cached data
* @return bool True if the operation succeeded
*/
protected function _write($var, $data, $ttl = 2592000)
{
if (!$this->memcached->replace($this->key_prefix . $var, $data, $ttl))
{
return $this->memcached->set($this->key_prefix . $var, $data, $ttl);
}
return true;
}
/**
* Remove an item from the cache
*
* @param string $var Cache key
* @return bool True if the operation succeeded
*/
protected function _delete($var)
{
return $this->memcached->delete($this->key_prefix . $var);
}
}
|
