126 lines
3.6 KiB
PHP
126 lines
3.6 KiB
PHP
<?php
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/**
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* @addtogroup Cache
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*/
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/**
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* FakeMemCachedClient imitates the API of memcached-client v. 0.1.2.
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* It acts as a memcached server with no RAM, that is, all objects are
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* cleared the moment they are set. All set operations succeed and all
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* get operations return null.
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* @addtogroup Cache
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*/
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class FakeMemCachedClient {
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function add ($key, $val, $exp = 0) { return true; }
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function decr ($key, $amt=1) { return null; }
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function delete ($key, $time = 0) { return false; }
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function disconnect_all () { }
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function enable_compress ($enable) { }
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function forget_dead_hosts () { }
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function get ($key) { return null; }
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function get_multi ($keys) { return array_pad(array(), count($keys), null); }
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function incr ($key, $amt=1) { return null; }
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function replace ($key, $value, $exp=0) { return false; }
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function run_command ($sock, $cmd) { return null; }
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function set ($key, $value, $exp=0){ return true; }
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function set_compress_threshold ($thresh){ }
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function set_debug ($dbg) { }
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function set_servers ($list) { }
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}
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global $wgCaches;
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$wgCaches = array();
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/** @todo document */
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function &wfGetCache( $inputType ) {
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global $wgCaches, $wgMemCachedServers, $wgMemCachedDebug, $wgMemCachedPersistent;
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$cache = false;
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if ( $inputType == CACHE_ANYTHING ) {
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reset( $wgCaches );
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$type = key( $wgCaches );
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if ( $type === false || $type === CACHE_NONE ) {
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$type = CACHE_DB;
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}
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} else {
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$type = $inputType;
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}
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if ( $type == CACHE_MEMCACHED ) {
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if ( !array_key_exists( CACHE_MEMCACHED, $wgCaches ) ){
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require_once( 'memcached-client.php' );
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if (!class_exists("MemcachedClientforWiki")) {
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class MemCachedClientforWiki extends memcached {
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function _debugprint( $text ) {
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wfDebug( "memcached: $text\n" );
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}
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}
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}
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$wgCaches[CACHE_DB] = new MemCachedClientforWiki(
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array('persistant' => $wgMemCachedPersistent, 'compress_threshold' => 1500 ) );
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$cache =& $wgCaches[CACHE_DB];
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$cache->set_servers( $wgMemCachedServers );
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$cache->set_debug( $wgMemCachedDebug );
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}
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} elseif ( $type == CACHE_ACCEL ) {
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if ( !array_key_exists( CACHE_ACCEL, $wgCaches ) ) {
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if ( function_exists( 'eaccelerator_get' ) ) {
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$wgCaches[CACHE_ACCEL] = new eAccelBagOStuff;
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} elseif ( function_exists( 'apc_fetch') ) {
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$wgCaches[CACHE_ACCEL] = new APCBagOStuff;
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} elseif( function_exists( 'xcache_get' ) ) {
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$wgCaches[CACHE_ACCEL] = new XCacheBagOStuff();
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} elseif ( function_exists( 'mmcache_get' ) ) {
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$wgCaches[CACHE_ACCEL] = new TurckBagOStuff;
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} else {
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$wgCaches[CACHE_ACCEL] = false;
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}
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}
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if ( $wgCaches[CACHE_ACCEL] !== false ) {
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$cache =& $wgCaches[CACHE_ACCEL];
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}
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} elseif ( $type == CACHE_DBA ) {
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if ( !array_key_exists( CACHE_DBA, $wgCaches ) ) {
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$wgCaches[CACHE_DBA] = new DBABagOStuff;
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}
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$cache =& $wgCaches[CACHE_DBA];
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}
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if ( $type == CACHE_DB || ( $inputType == CACHE_ANYTHING && $cache === false ) ) {
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if ( !array_key_exists( CACHE_DB, $wgCaches ) ) {
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$wgCaches[CACHE_DB] = new MediaWikiBagOStuff('objectcache');
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}
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$cache =& $wgCaches[CACHE_DB];
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}
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if ( $cache === false ) {
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if ( !array_key_exists( CACHE_NONE, $wgCaches ) ) {
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$wgCaches[CACHE_NONE] = new FakeMemCachedClient;
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}
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$cache =& $wgCaches[CACHE_NONE];
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}
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return $cache;
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}
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function &wfGetMainCache() {
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global $wgMainCacheType;
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$ret =& wfGetCache( $wgMainCacheType );
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return $ret;
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}
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function &wfGetMessageCacheStorage() {
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global $wgMessageCacheType;
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$ret =& wfGetCache( $wgMessageCacheType );
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return $ret;
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}
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function &wfGetParserCacheStorage() {
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global $wgParserCacheType;
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$ret =& wfGetCache( $wgParserCacheType );
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return $ret;
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}
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