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OMS/app/base/lib/cache/memcache.php
2025-12-28 23:13:25 +08:00

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<?php
/**
* Copyright © ShopeX http://www.shopex.cn. All rights reserved.
* See LICENSE file for license details.
*/
/*
* @package base
* @copyright Copyright (c) 2010, shopex. inc
* @author edwin.lzh@gmail.com
* @license
*/
class base_cache_memcache extends base_cache_abstract implements base_interface_cache
{
static private $_cacheObj = null;
function __construct()
{
$this->connect();
$this->check_vary_list();
}//End Function
/**
* connect
* @return mixed 返回值
*/
public function connect()
{
if(!isset(self::$_cacheObj)){
if(defined('CACHE_MEMCACHE_CONFIG') && constant('CACHE_MEMCACHE_CONFIG')){
self::$_cacheObj = new Memcache;
$config = explode(',', CACHE_MEMCACHE_CONFIG);
foreach($config AS $row){
$row = trim($row);
if(strpos($row, 'unix://') === 0){
self::$_cacheObj->addServer($row, 0);
}else{
$tmp = explode(':', $row);
self::$_cacheObj->addServer($tmp[0], $tmp[1]);
}
}
}else{
trigger_error('can\'t load CACHE_MEMCACHE_CONFIG, please check it', E_USER_ERROR);
}
}
}//End Function
/**
* fetch
* @param mixed $key key
* @param mixed $result result
* @return mixed 返回值
*/
public function fetch($key, &$result)
{
$result = self::$_cacheObj->get($key);
if($result === false){
return false;
}else{
return true;
}
}//End Function
/**
* store
* @param mixed $key key
* @param mixed $value value
* @param mixed $ttl ttl
* @return mixed 返回值
*/
public function store($key, $value, $ttl=0)
{
return self::$_cacheObj->set($key, $value, MEMCACHE_COMPRESSED, $ttl);
}//End Function
/**
* status
* @return mixed 返回值
*/
public function status()
{
$status = self::$_cacheObj->getStats();
$return['缓存获取'] = $status['cmd_get'];
$return['缓存存储'] = $status['cmd_set'];
$return['可使用缓存'] = $status['limit_maxbytes'];
return $return;
}//End Function
/**
* 是否支持同步的自增单号处理
*/
public function supportUUID() {
return true;
}
/**
* 累加
*/
public function increment($key, $offset=1)
{
$ret = self::$_cacheObj->increment($key, $offset);
if ($ret === false) {
//返回 false 说明 key 在memcache 中不存在,需创建
if (self::$_cacheObj->set($key, $offset, 0, 86401)) {
$ret = $offset;
} else {
$ret = false;
}
}
return $ret;
}//End Function
/**
* 递减
*/
public function decrement($key, $offset=1)
{
$ret = self::$_cacheObj->decrement($key, $offset);
if ($ret === false) {
//返回 false 说明 key 在memcache 中不存在,需创建
$value = 0 - $offset;
if (self::$_cacheObj->set($key, $value, 0, 86401)) {
$ret = $value;
} else {
$ret = false;
}
}
return $ret;
}//End Function
/**
* 初始化自增ID值
*
* @return void
* @author
*/
public function setcr($key, $value, $ttl=0)
{
return self::$_cacheObj->set($key, $value, 0, $ttl);
}
}//End Class