| 1 |
<?php |
| 2 |
if( |
| 3 |
// (isset($_POST['action']) && $_POST['action'] == 'query-attachments') || |
| 4 |
(isset($_GET['debug']) && $_GET['debug'] == 'sql') |
| 5 |
){ |
| 6 |
return; |
| 7 |
} |
| 8 |
|
| 9 |
if(!defined('WP_CACHE_KEY_SALT')){ |
| 10 |
define('WP_CACHE_KEY_SALT', ''); |
| 11 |
} |
| 12 |
|
| 13 |
if(class_exists('Memcached')){ |
| 14 |
function wp_cache_add($key, $data, $group='', $expire=0){ |
| 15 |
global $wp_object_cache; |
| 16 |
return $wp_object_cache->add($key, $data, $group, (int)$expire); |
| 17 |
} |
| 18 |
|
| 19 |
function wp_cache_cas($cas_token, $key, $data, $group='', $expire=0){ |
| 20 |
global $wp_object_cache; |
| 21 |
return $wp_object_cache->cas($cas_token, $key, $data, $group, (int)$expire); |
| 22 |
} |
| 23 |
|
| 24 |
function wp_cache_close(){ |
| 25 |
global $wp_object_cache; |
| 26 |
return $wp_object_cache->close(); |
| 27 |
} |
| 28 |
|
| 29 |
function wp_cache_decr($key, $offset=1, $group='', $initial_value=0, $expire=0){ |
| 30 |
global $wp_object_cache; |
| 31 |
return $wp_object_cache->decr($key, $offset, $group, $initial_value, $expire); |
| 32 |
} |
| 33 |
|
| 34 |
function wp_cache_delete($key, $group=''){ |
| 35 |
global $wp_object_cache; |
| 36 |
return $wp_object_cache->delete($key, $group); |
| 37 |
} |
| 38 |
|
| 39 |
function wp_cache_flush(){ |
| 40 |
global $wp_object_cache; |
| 41 |
return $wp_object_cache->flush(); |
| 42 |
} |
| 43 |
|
| 44 |
function wp_cache_get($key, $group='', $force=false, &$found=null){ |
| 45 |
global $wp_object_cache; |
| 46 |
return $wp_object_cache->get($key, $group, $force, $found); |
| 47 |
} |
| 48 |
|
| 49 |
function wp_cache_get_multiple($keys, $group='', $force=false){ |
| 50 |
global $wp_object_cache; |
| 51 |
return $wp_object_cache->get_multiple($keys, $group, $force); |
| 52 |
} |
| 53 |
|
| 54 |
function wp_cache_set_multiple($data, $group='', $expire=0){ |
| 55 |
global $wp_object_cache; |
| 56 |
return $wp_object_cache->set_multiple($data, $group, $expire); |
| 57 |
} |
| 58 |
|
| 59 |
function wp_cache_delete_multiple($keys, $group=''){ |
| 60 |
global $wp_object_cache; |
| 61 |
return $wp_object_cache->delete_multiple($keys, $group); |
| 62 |
} |
| 63 |
|
| 64 |
function wp_cache_get_with_cas($key, $group='', &$token=null){ |
| 65 |
global $wp_object_cache; |
| 66 |
|
| 67 |
$result = $wp_object_cache->get_with_cas($key, $group); |
| 68 |
|
| 69 |
if(is_array($result)){ |
| 70 |
$token = $result['cas']; |
| 71 |
$result = $result['value']; |
| 72 |
} |
| 73 |
|
| 74 |
return $result; |
| 75 |
} |
| 76 |
|
| 77 |
function wp_cache_incr($key, $offset=1, $group='', $initial_value=0, $expire=0){ |
| 78 |
global $wp_object_cache; |
| 79 |
return $wp_object_cache->incr($key, $offset, $group, $initial_value, $expire); |
| 80 |
} |
| 81 |
|
| 82 |
if(!isset($_GET['debug']) || $_GET['debug'] != 'sql'){ |
| 83 |
function wp_cache_init(){ |
| 84 |
$GLOBALS['wp_object_cache'] = new WP_Object_Cache(); |
| 85 |
} |
| 86 |
} |
| 87 |
|
| 88 |
function wp_cache_replace($key, $data, $group='', $expire=0){ |
| 89 |
global $wp_object_cache; |
| 90 |
return $wp_object_cache->replace($key, $data, $group, (int)$expire); |
| 91 |
} |
| 92 |
|
| 93 |
function wp_cache_set($key, $data, $group='', $expire=0){ |
| 94 |
global $wp_object_cache; |
| 95 |
return $wp_object_cache->set($key, $data, $group, (int)$expire); |
| 96 |
} |
| 97 |
|
| 98 |
function wp_cache_switch_to_blog($blog_id){ |
| 99 |
global $wp_object_cache; |
| 100 |
return $wp_object_cache->switch_to_blog($blog_id); |
| 101 |
} |
| 102 |
|
| 103 |
function wp_cache_add_global_groups($groups){ |
| 104 |
global $wp_object_cache; |
| 105 |
$wp_object_cache->add_global_groups($groups); |
| 106 |
} |
| 107 |
|
| 108 |
function wp_cache_add_non_persistent_groups($groups){ |
| 109 |
global $wp_object_cache; |
| 110 |
$wp_object_cache->add_non_persistent_groups($groups); |
| 111 |
} |
| 112 |
|
| 113 |
function wp_cache_get_stats(){ |
| 114 |
global $wp_object_cache; |
| 115 |
return $wp_object_cache->get_stats(); |
| 116 |
} |
| 117 |
|
| 118 |
class WP_Object_Cache{ |
| 119 |
private $cache = []; |
| 120 |
private $mc = null; |
| 121 |
|
| 122 |
private $blog_prefix; |
| 123 |
private $global_prefix; |
| 124 |
|
| 125 |
protected $global_groups = []; |
| 126 |
protected $non_persistent_groups = []; |
| 127 |
|
| 128 |
protected function action($action, $id, $group, $data, $expire=0){ |
| 129 |
if($this->is_non_persistent_group($group)){ |
| 130 |
$internal = $this->internal('get', $id, $group); |
| 131 |
|
| 132 |
if($action == 'add'){ |
| 133 |
if($internal !== false){ |
| 134 |
return false; |
| 135 |
} |
| 136 |
}elseif($action == 'replace'){ |
| 137 |
if($internal === false){ |
| 138 |
return false; |
| 139 |
} |
| 140 |
}elseif($action == 'increment' || $action == 'decrement'){ |
| 141 |
$data = $action == 'increment' ? $data : (0-$data); |
| 142 |
$data = (int)$internal+$data; |
| 143 |
$data = $data < 0 ? 0 : $data; |
| 144 |
} |
| 145 |
|
| 146 |
return $this->internal('add', $id, $group, $data); |
| 147 |
}else{ |
| 148 |
$key = $this->build_key($id, $group); |
| 149 |
$expire = (!$expire && strlen($id) > 50) ? DAY_IN_SECONDS : $expire; |
| 150 |
|
| 151 |
if($action == 'set'){ |
| 152 |
$result = $this->mc->set($key, $data, $expire); |
| 153 |
}elseif($action == 'add'){ |
| 154 |
$result = $this->mc->add($key, $data, $expire); |
| 155 |
}elseif($action == 'replace'){ |
| 156 |
$result = $this->mc->replace($key, $data, $expire); |
| 157 |
}elseif($action == 'increment'){ |
| 158 |
$result = $data = $this->mc->increment($key, $data); |
| 159 |
}elseif($action == 'decrement'){ |
| 160 |
$result = $data = $this->mc->decrement($key, $data); |
| 161 |
} |
| 162 |
|
| 163 |
$code = $this->mc->getResultCode(); |
| 164 |
|
| 165 |
if($code === Memcached::RES_SUCCESS){ |
| 166 |
$this->internal('add', $id, $group, $data); |
| 167 |
}else{ |
| 168 |
$this->internal('del', $id, $group); |
| 169 |
|
| 170 |
if($code != Memcached::RES_NOTSTORED){ |
| 171 |
// trigger_error($code.' '.var_export($result, true).' '.var_export($key, true)); |
| 172 |
} |
| 173 |
} |
| 174 |
|
| 175 |
return $result; |
| 176 |
} |
| 177 |
} |
| 178 |
|
| 179 |
protected function internal($action, $id, $group, $data=null){ |
| 180 |
$group = $this->parse_group($group); |
| 181 |
|
| 182 |
if($action == 'get'){ |
| 183 |
$data = $this->cache[$group][$id] ?? false; |
| 184 |
|
| 185 |
return is_object($data) ? clone $data : $data; |
| 186 |
}elseif($action == 'add'){ |
| 187 |
$this->cache[$group][$id] = is_object($data) ? clone $data : $data; |
| 188 |
|
| 189 |
return true; |
| 190 |
}elseif($action == 'del'){ |
| 191 |
unset($this->cache[$group][$id]); |
| 192 |
} |
| 193 |
} |
| 194 |
|
| 195 |
public function add($id, $data, $group='default', $expire=0){ |
| 196 |
if(wp_suspend_cache_addition()){ |
| 197 |
return false; |
| 198 |
} |
| 199 |
|
| 200 |
return $this->action('add', $id, $group, $data, $expire); |
| 201 |
} |
| 202 |
|
| 203 |
public function replace($id, $data, $group='default', $expire=0){ |
| 204 |
return $this->action('replace', $id, $group, $data, $expire); |
| 205 |
} |
| 206 |
|
| 207 |
public function set($id, $data, $group='default', $expire=0){ |
| 208 |
return $this->action('set', $id, $group, $data, $expire); |
| 209 |
} |
| 210 |
|
| 211 |
public function incr($id, $offset=1, $group='default', $initial_value=0, $expire=0){ |
| 212 |
$this->action('add', $id, $group, $initial_value, $expire); |
| 213 |
return $this->action('increment', $id, $group, $offset); |
| 214 |
} |
| 215 |
|
| 216 |
public function decr($id, $offset=1, $group='default', $initial_value=0, $expire=0){ |
| 217 |
$this->action('add', $id, $group, $initial_value, $expire); |
| 218 |
return $this->action('decrement', $id, $group, $offset); |
| 219 |
} |
| 220 |
|
| 221 |
public function cas($cas_token, $id, $data, $group='default', $expire=0){ |
| 222 |
$this->internal('del', $id, $group); |
| 223 |
|
| 224 |
return $this->mc->cas($cas_token, $this->build_key($id, $group), $data, $expire); |
| 225 |
} |
| 226 |
|
| 227 |
public function delete($id, $group='default'){ |
| 228 |
$this->internal('del', $id, $group); |
| 229 |
|
| 230 |
return $this->is_non_persistent_group($group) ? true : $this->mc->delete($this->build_key($id, $group)); |
| 231 |
} |
| 232 |
|
| 233 |
public function flush(){ |
| 234 |
$this->cache = []; |
| 235 |
|
| 236 |
return $this->mc->flush(); |
| 237 |
} |
| 238 |
|
| 239 |
public function get($id, $group='default', $force=false, &$found=null){ |
| 240 |
$value = $force ? false : $this->internal('get', $id, $group); |
| 241 |
$found = $value !== false; |
| 242 |
|
| 243 |
if(!$found && !$this->is_non_persistent_group($group)){ |
| 244 |
$value = $this->mc->get($this->build_key($id, $group)); |
| 245 |
$code = $this->mc->getResultCode(); |
| 246 |
$found = $code !== Memcached::RES_NOTFOUND; |
| 247 |
|
| 248 |
if($found){ |
| 249 |
if($code !== Memcached::RES_SUCCESS){ |
| 250 |
trigger_error($code.' '.var_export([$id, $group, $value], true)); |
| 251 |
} |
| 252 |
|
| 253 |
$this->internal('add', $id, $group, $value); |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
return $value; |
| 258 |
} |
| 259 |
|
| 260 |
public function get_with_cas($id, $group='default'){ |
| 261 |
$key = $this->build_key($id, $group); |
| 262 |
|
| 263 |
if(defined('Memcached::GET_EXTENDED')){ |
| 264 |
$result = $this->mc->get($key, null, Memcached::GET_EXTENDED); |
| 265 |
}else{ |
| 266 |
$value = $this->mc->get($key, null, $cas); |
| 267 |
$result = ['value'=>$value, 'cas'=>$cas]; |
| 268 |
} |
| 269 |
|
| 270 |
return $this->mc->getResultCode() === Memcached::RES_NOTFOUND ? false : $result; |
| 271 |
} |
| 272 |
|
| 273 |
public function get_multiple($ids, $group='default', $force=false){ |
| 274 |
$caches = []; |
| 275 |
$keys = []; |
| 276 |
|
| 277 |
$non_persistent = $this->is_non_persistent_group($group); |
| 278 |
|
| 279 |
if($non_persistent || !$force){ |
| 280 |
foreach($ids as $id){ |
| 281 |
$caches[$id] = $this->internal('get', $id, $group); |
| 282 |
$keys[$id] = $this->build_key($id, $group); |
| 283 |
|
| 284 |
if(!$non_persistent && $caches[$id] === false){ |
| 285 |
$force = true; |
| 286 |
} |
| 287 |
} |
| 288 |
|
| 289 |
if($non_persistent || !$force){ |
| 290 |
return $caches; |
| 291 |
} |
| 292 |
} |
| 293 |
|
| 294 |
$results = $this->mc->getMulti(array_values($keys)) ?: []; |
| 295 |
|
| 296 |
foreach($keys as $id => $key){ |
| 297 |
$caches[$id] = $results[$key] ?? false; |
| 298 |
|
| 299 |
$this->internal('add', $id, $group, $caches[$id]); |
| 300 |
} |
| 301 |
|
| 302 |
return $caches; |
| 303 |
} |
| 304 |
|
| 305 |
public function set_multiple($data, $group='default', $expire=0){ |
| 306 |
$items = []; |
| 307 |
|
| 308 |
foreach($data as $id => $value){ |
| 309 |
$this->internal('add', $id, $group, $value); |
| 310 |
|
| 311 |
$key = $this->build_key($id, $group); |
| 312 |
|
| 313 |
$items[$key] = $value; |
| 314 |
} |
| 315 |
|
| 316 |
if($this->is_non_persistent_group($group)){ |
| 317 |
$result = true; |
| 318 |
}else{ |
| 319 |
$result = $this->mc->setMulti($items, $expire); |
| 320 |
$code = $this->mc->getResultCode(); |
| 321 |
|
| 322 |
if($code !== Memcached::RES_SUCCESS){ |
| 323 |
if($code != Memcached::RES_NOTSTORED){ |
| 324 |
// trigger_error($code.' '.var_export($result,true)); |
| 325 |
} |
| 326 |
|
| 327 |
foreach($data as $id => $value){ |
| 328 |
$this->internal('del', $id, $group); |
| 329 |
} |
| 330 |
|
| 331 |
return $result; |
| 332 |
} |
| 333 |
} |
| 334 |
|
| 335 |
return $result; |
| 336 |
} |
| 337 |
|
| 338 |
public function delete_multiple($ids, $group='default'){ |
| 339 |
foreach($ids as $id){ |
| 340 |
$this->internal('del', $id, $group); |
| 341 |
|
| 342 |
$keys[] = $this->build_key($id, $group); |
| 343 |
} |
| 344 |
|
| 345 |
return (empty($keys) || $this->is_non_persistent_group($group)) ? true : $this->mc->deleteMulti($keys); |
| 346 |
} |
| 347 |
|
| 348 |
public function add_global_groups($groups){ |
| 349 |
$this->global_groups = array_merge($this->global_groups, array_fill_keys((array)$groups, true)); |
| 350 |
} |
| 351 |
|
| 352 |
public function add_non_persistent_groups($groups){ |
| 353 |
$this->non_persistent_groups = array_merge($this->non_persistent_groups, array_fill_keys((array)$groups, true)); |
| 354 |
} |
| 355 |
|
| 356 |
public function switch_to_blog($blog_id){ |
| 357 |
if(is_multisite()){ |
| 358 |
$this->blog_prefix = ((int)$blog_id).':'; |
| 359 |
} |
| 360 |
} |
| 361 |
|
| 362 |
private function is_non_persistent_group($group){ |
| 363 |
return $group ? isset($this->non_persistent_groups[$group]) : false; |
| 364 |
} |
| 365 |
|
| 366 |
private function parse_group($group){ |
| 367 |
$group = $group ?: 'default'; |
| 368 |
$prefix = isset($this->global_groups[$group]) ? $this->global_prefix : $this->blog_prefix; |
| 369 |
|
| 370 |
return WP_CACHE_KEY_SALT.$prefix.$group; |
| 371 |
} |
| 372 |
|
| 373 |
public function build_key($id, $group='default'){ |
| 374 |
return preg_replace('/\s+/', '', $this->parse_group($group).':'.$id); |
| 375 |
} |
| 376 |
|
| 377 |
public function get_stats(){ |
| 378 |
return $this->mc->getStats(); |
| 379 |
} |
| 380 |
|
| 381 |
public function get_mc(){ |
| 382 |
return $this->mc; |
| 383 |
} |
| 384 |
|
| 385 |
public function failure_callback($host, $port){} |
| 386 |
|
| 387 |
public function close(){ |
| 388 |
$this->mc->quit(); |
| 389 |
} |
| 390 |
|
| 391 |
public function __construct(){ |
| 392 |
$this->mc = new Memcached(); |
| 393 |
// $this->mc->setOption(Memcached::OPT_LIBKETAMA_COMPATIBLE, true); // 用于启用与 libketama 一致性哈希算法� |
| 394 |
�容的服务器分布策略 |
| 395 |
|
| 396 |
if(!$this->mc->getServerList()){ |
| 397 |
global $memcached_servers; |
| 398 |
|
| 399 |
if(isset($memcached_servers)){ |
| 400 |
foreach($memcached_servers as $memcached){ |
| 401 |
$this->mc->addServer(...$memcached); |
| 402 |
} |
| 403 |
}else{ |
| 404 |
$this->mc->addServer('127.0.0.1', 11211); |
| 405 |
} |
| 406 |
} |
| 407 |
|
| 408 |
if(is_multisite()){ |
| 409 |
$this->blog_prefix = get_current_blog_id().':'; |
| 410 |
$this->global_prefix = ''; |
| 411 |
}else{ |
| 412 |
$this->blog_prefix = $GLOBALS['table_prefix'].':'; |
| 413 |
$this->global_prefix = defined('CUSTOM_USER_TABLE') ? '' : $this->blog_prefix; |
| 414 |
} |
| 415 |
} |
| 416 |
} |
| 417 |
} |
| 418 |
|
