pronto/core/cache/memcache.php

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<?php
class Cache_MemCache extends Cache
{
        var $memcache = null;

        // only active if connected to at least one memcache instance
        var $active   = false;

        function Cache_MemCache()
        {
                $this->Cache();
                $this->memcache = new Memcache();
                $this->active   = false;

                if(defined('CACHE_MEMCACHE_SERVERS')) {
                        foreach(explode(' ', CACHE_MEMCACHE_SERVERS) as $tuple) {
                                list($h,$p) = explode(':', $tuple);
                                $this->add_server($h, $p);
                        }
                }
        }

        function add_server($host, $port)
        {
                if($this->memcache->addServer($host, $port)) $this->active = true;
                return $this->active;
        }

        function set($key, $var, $expire=0)
        {
                $key = SITE_NAME."|$key";
                return $this->active ? $this->memcache->set($key, $var, 0, $expire) : false;
        }

        function &get($key)
        {
                $key = SITE_NAME."|$key";
                if(!$this->active) return false;
                $val =& $this->memcache->get($key);
                return $val;
        }

        function delete($key)
        {
                if(!$this->active) return false;
                $key = SITE_NAME."|$key";
                return $this->memcache->delete($key);
        }

        function flush()
        {
                if(!$this->active) return false;
                return $this->memcache->flush();
        }

        function gc()
        {
                // memcache will do this automatically...
        }

        function stats()
        {
                if(!$this->active) return false;
                return $this->memcache->getExtendedStats();
        }
}

?>

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