blob: aa2a8def33327eb64c10cdbeca8f16ec1b8a5875 (
plain) (
blame)
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
|
<?php
/**
* Class Minify_Cache_XCache
*
* @link http://xcache.lighttpd.net/
* @package Minify
*/
/**
* XCache-based cache class for Minify
* {@see http://xcache.lighttpd.net/wiki/XcacheApi XCache API}
*
* <code>
* Minify::setCache(new Minify_Cache_XCache());
* </code>
*
* @package Minify
* @author Elan Ruusamäe <glen@delfi.ee>
**/
class Minify_Cache_XCache implements Minify_CacheInterface
{
/**
* Create a Minify_Cache_XCache object, to be passed to
* Minify::setCache().
*
* @param int $expire seconds until expiration (default = 0
* meaning the item will not get an expiration date)
*/
public function __construct($expire = 0)
{
$this->_exp = $expire;
}
/**
* Write data to cache.
*
* @param string $id cache id
* @param string $data
* @return bool success
*/
public function store($id, $data)
{
return xcache_set($id, "{$_SERVER['REQUEST_TIME']}|{$data}", $this->_exp);
}
/**
* Get the size of a cache entry
*
* @param string $id cache id
* @return int size in bytes
*/
public function getSize($id)
{
if (! $this->_fetch($id)) {
return false;
}
if (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2)) {
return mb_strlen($this->_data, '8bit');
} else {
return strlen($this->_data);
}
}
/**
* Does a valid cache entry exist?
*
* @param string $id cache id
* @param int $srcMtime mtime of the original source file(s)
* @return bool exists
*/
public function isValid($id, $srcMtime)
{
return ($this->_fetch($id) && ($this->_lm >= $srcMtime));
}
/**
* Send the cached content to output
*
* @param string $id cache id
*/
public function display($id)
{
echo $this->_fetch($id) ? $this->_data : '';
}
/**
* Fetch the cached content
*
* @param string $id cache id
* @return string
*/
public function fetch($id)
{
return $this->_fetch($id) ? $this->_data : '';
}
private $_exp = null;
// cache of most recently fetched id
private $_lm = null;
private $_data = null;
private $_id = null;
/**
* Fetch data and timestamp from xcache, store in instance
*
* @param string $id
* @return bool success
*/
private function _fetch($id)
{
if ($this->_id === $id) {
return true;
}
$ret = xcache_get($id);
if (false === $ret) {
$this->_id = null;
return false;
}
list($this->_lm, $this->_data) = explode('|', $ret, 2);
$this->_id = $id;
return true;
}
}
|
