Blame view
sources/lib/cache.php
3.51 KB
03e52840d
Init
|
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 |
<?php
/**
* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
class OC_Cache {
/**
* @var OC_Cache $user_cache
*/
static protected $user_cache;
/**
* @var OC_Cache $global_cache
*/
static protected $global_cache;
/**
* @var OC_Cache $global_cache_fast
*/
static protected $global_cache_fast;
/**
* @var OC_Cache $user_cache_fast
*/
static protected $user_cache_fast;
static protected $isFast=null;
/**
* get the global cache
* @return OC_Cache
*/
static public function getGlobalCache($fast=false) {
if (!self::$global_cache) {
self::$global_cache_fast = null;
if (!self::$global_cache_fast && function_exists('xcache_set')) {
self::$global_cache_fast = new OC_Cache_XCache(true);
}
if (!self::$global_cache_fast && function_exists('apc_store')) {
self::$global_cache_fast = new OC_Cache_APC(true);
}
self::$global_cache = new OC_Cache_FileGlobal();
if (self::$global_cache_fast) {
self::$global_cache = new OC_Cache_Broker(self::$global_cache_fast, self::$global_cache);
}
}
if($fast) {
if(self::$global_cache_fast) {
return self::$global_cache_fast;
}else{
return false;
}
}
return self::$global_cache;
}
/**
* get the user cache
* @return OC_Cache
*/
static public function getUserCache($fast=false) {
if (!self::$user_cache) {
self::$user_cache_fast = null;
if (!self::$user_cache_fast && function_exists('xcache_set')) {
self::$user_cache_fast = new OC_Cache_XCache();
}
if (!self::$user_cache_fast && function_exists('apc_store')) {
self::$user_cache_fast = new OC_Cache_APC();
}
self::$user_cache = new OC_Cache_File();
if (self::$user_cache_fast) {
self::$user_cache = new OC_Cache_Broker(self::$user_cache_fast, self::$user_cache);
}
}
if($fast) {
if(self::$user_cache_fast) {
return self::$user_cache_fast;
}else{
return false;
}
}
return self::$user_cache;
}
/**
* get a value from the user cache
* @return mixed
*/
static public function get($key) {
$user_cache = self::getUserCache();
return $user_cache->get($key);
}
/**
* set a value in the user cache
* @return bool
*/
static public function set($key, $value, $ttl=0) {
if (empty($key)) {
return false;
}
$user_cache = self::getUserCache();
return $user_cache->set($key, $value, $ttl);
}
/**
* check if a value is set in the user cache
* @return bool
*/
static public function hasKey($key) {
$user_cache = self::getUserCache();
return $user_cache->hasKey($key);
}
/**
* remove an item from the user cache
* @return bool
*/
static public function remove($key) {
$user_cache = self::getUserCache();
return $user_cache->remove($key);
}
/**
* clear the user cache of all entries starting with a prefix
* @param string prefix (optional)
* @return bool
*/
static public function clear($prefix='') {
$user_cache = self::getUserCache();
return $user_cache->clear($prefix);
}
/**
* check if a fast memory based cache is available
* @return true
*/
static public function isFast() {
if(is_null(self::$isFast)) {
self::$isFast=function_exists('xcache_set') || function_exists('apc_store');
}
return self::$isFast;
}
static public function generateCacheKeyFromFiles($files) {
$key = '';
sort($files);
foreach($files as $file) {
$stat = stat($file);
$key .= $file.$stat['mtime'].$stat['size'];
}
return md5($key);
}
}
|