[pharext/pharext.org] / app / Github / Storage / Memcache.php

<?php

namespace app\Github\Storage;

use app\Github\Storage;

class Memcache implements Storage
{
        private $mc;
        private $ns;

        function __construct($ns = "github", \Memcached $mc = null) {
                $this->ns = $ns;
                if (!$mc) {
                        $mc = new \Memcached("pharext");
                        $mc->addServer("localhost", 11211);
                }
                $this->mc = $mc;
        }

        private function key($key) {
                return sprintf("%s:%s", $this->ns, $key);
        }

        function get($key, Item &$item = null, $update = false) {
                if (!$item = $this->mc->get($this->key($key))) {
                        return false;
                }

                if (null === $item->getTTL()) {
                        return true;
                }
                if ($item->getLTL() >= 0) {
                        if ($update) {
                                $item->setTimestamp();
                                $this->mc->set($this->key($key), $item, $item->getTTL() + 60*60*24);
                        }
                        return true;
                }
                return false;
        }

        function set($key, Item $item) {
                $this->mc->set($this->key($key), $item, (null !== $item->getTTL()) ? $item->getTTL() + 60*60*24 : 0);
                return $this;
        }

        function del($key) {
                $this->mc->delete($this->key($key));
        }
}