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
|
<?php defined('SYSPATH') OR die('No direct access allowed.');
/**
* Memcache-based Cache driver.
*
* $Id$
*
* @package Cache
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class Cache_Memcache_Driver implements Cache_Driver {
// Cache backend object and flags
protected $backend;
protected $flags;
public function __construct()
{
if ( ! extension_loaded('memcache'))
throw new Kohana_Exception('cache.extension_not_loaded', 'memcache');
$this->backend = new Memcache;
$this->flags = Kohana::config('cache_memcache.compression') ? MEMCACHE_COMPRESSED : 0;
$servers = Kohana::config('cache_memcache.servers');
foreach ($servers as $server)
{
// Make sure all required keys are set
$server += array('host' => '127.0.0.1', 'port' => 11211, 'persistent' => FALSE);
// Add the server to the pool
$this->backend->addServer($server['host'], $server['port'], (bool) $server['persistent'])
or Kohana::log('error', 'Cache: Connection failed: '.$server['host']);
}
}
public function find($tag)
{
return FALSE;
}
public function get($id)
{
return (($return = $this->backend->get($id)) === FALSE) ? NULL : $return;
}
public function set($id, $data, $tags, $lifetime)
{
count($tags) and Kohana::log('error', 'Cache: Tags are unsupported by the memcache driver');
// Memcache driver expects unix timestamp
if ($lifetime !== 0)
{
$lifetime += time();
}
return $this->backend->set($id, $data, $this->flags, $lifetime);
}
public function delete($id, $tag = FALSE)
{
if ($id === TRUE)
return $this->backend->flush();
if ($tag == FALSE)
return $this->backend->delete($id);
return TRUE;
}
public function delete_expired()
{
return TRUE;
}
} // End Cache Memcache Driver
|
