100 lines
2.7 KiB
PHP
100 lines
2.7 KiB
PHP
<?php
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/**
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* Functions to get cache objects
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*
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* @file
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* @ingroup Cache
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*/
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global $wgCaches;
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$wgCaches = array();
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/**
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* Get a cache object.
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* @param $inputType Integer: cache type, one the the CACHE_* constants.
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*
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* @return BagOStuff
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*/
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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, $wgCaches ) ) {
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$wgCaches[CACHE_MEMCACHED] = new MemCachedClientforWiki(
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array('persistant' => $wgMemCachedPersistent, 'compress_threshold' => 1500 ) );
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$wgCaches[CACHE_MEMCACHED]->set_servers( $wgMemCachedServers );
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$wgCaches[CACHE_MEMCACHED]->set_debug( $wgMemCachedDebug );
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}
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$cache =& $wgCaches[CACHE_MEMCACHED];
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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( 'wincache_ucache_get' ) ) {
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$wgCaches[CACHE_ACCEL] = new WinCacheBagOStuff();
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} else {
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$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 SqlBagOStuff('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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/** Get the main cache object */
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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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/** Get the cache object used by the message cache */
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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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/** Get the cache object used by the parser cache */
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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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