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<?php
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////////////////////////////////////////////////////////////////////////////////
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// //
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// Copyright (C) 2006 Phorum Development Team //
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// http://www.phorum.org //
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// //
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// This program is free software. You can redistribute it and/or modify //
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// it under the terms of either the current Phorum License (viewable at //
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// phorum.org) or the Phorum License that was distributed with this file //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY, without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. //
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// //
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// You should have received a copy of the Phorum License //
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// along with this program. //
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////////////////////////////////////////////////////////////////////////////////
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/*
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* Memcached-based caching-layer
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* Memcached -> http://www.danga.com/memcached/
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* using the pecl-module for accessing memcached
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* -> http://pecl.php.net/package/memcache/
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*/
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if(!defined("PHORUM")) return;
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$PHORUM['memcache_obj'] = new Memcache;
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$PHORUM['memcache_obj']->connect('127.0.0.1', 11211);
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//$PHORUM['memcache_obj'] = memcache_connect('127.0.0.1', 11211);
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/*
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* This function returns the cached data for the given key
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* or NULL if no data is cached for this key
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*/
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function phorum_cache_get($type,$key) {
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if(is_array($key)) {
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$getkey=array();
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foreach($key as $realkey) {
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$getkey[]=$type."_".$realkey;
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}
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} else {
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$getkey=$type."_".$key;
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}
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$ret=$GLOBALS['PHORUM']['memcache_obj']->get($getkey);
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// rewriting them as we need to strip out the type :(
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if(is_array($getkey)) {
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$typelen=(strlen($type)+1);
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foreach($ret as $retkey => $retdata) {
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$ret[substr($retkey,$typelen)]=$retdata;
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unset($ret[$retkey]);
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}
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}
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if($ret === false || (is_array($ret) && count($ret) == 0))
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$ret=NULL;
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return $ret;
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}
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/*
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* Puts some data into the cache
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* returns number of bytes written (something 'true') or false ...
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* depending of the success of the function
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*/
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function phorum_cache_put($type,$key,$data,$ttl=PHORUM_CACHE_DEFAULT_TTL) {
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$ret=$GLOBALS['PHORUM']['memcache_obj']->set($type."_".$key, $data, 0, $ttl);
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return $ret;
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}
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/*
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* Removes a key from the cache
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*/
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function phorum_cache_remove($type,$key) {
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$ret=$GLOBALS['PHORUM']['memcache_obj']->delete( $type."_".$key, 0);
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return $ret;
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}
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/*
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* Clears all data from the cache
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*/
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function phorum_cache_clear() {
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$ret=$GLOBALS['PHORUM']['memcache_obj']->flush();
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return $ret;
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}
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/*
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type can be nearly each value to specify a group of data
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used are currently:
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'user'
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'message'
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*/
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?>
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