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-rw-r--r--includes/ParserCache.php119
1 files changed, 0 insertions, 119 deletions
diff --git a/includes/ParserCache.php b/includes/ParserCache.php
deleted file mode 100644
index 129b7132..00000000
--- a/includes/ParserCache.php
+++ /dev/null
@@ -1,119 +0,0 @@
-<?php
-/**
- *
- * @addtogroup Cache
- * @todo document
- */
-class ParserCache {
- /**
- * Get an instance of this object
- */
- public static function &singleton() {
- static $instance;
- if ( !isset( $instance ) ) {
- global $parserMemc;
- $instance = new ParserCache( $parserMemc );
- }
- return $instance;
- }
-
- /**
- * Setup a cache pathway with a given back-end storage mechanism.
- * May be a memcached client or a BagOStuff derivative.
- *
- * @param object $memCached
- */
- function __construct( &$memCached ) {
- $this->mMemc =& $memCached;
- }
-
- function getKey( &$article, &$user ) {
- global $action;
- $hash = $user->getPageRenderingHash();
- if( !$article->mTitle->quickUserCan( 'edit' ) ) {
- // section edit links are suppressed even if the user has them on
- $edit = '!edit=0';
- } else {
- $edit = '';
- }
- $pageid = intval( $article->getID() );
- $renderkey = (int)($action == 'render');
- $key = wfMemcKey( 'pcache', 'idhash', "$pageid-$renderkey!$hash$edit" );
- return $key;
- }
-
- function getETag( &$article, &$user ) {
- return 'W/"' . $this->getKey($article, $user) . "--" . $article->mTouched. '"';
- }
-
- function get( &$article, &$user ) {
- global $wgCacheEpoch;
- $fname = 'ParserCache::get';
- wfProfileIn( $fname );
-
- $key = $this->getKey( $article, $user );
-
- wfDebug( "Trying parser cache $key\n" );
- $value = $this->mMemc->get( $key );
- if ( is_object( $value ) ) {
- wfDebug( "Found.\n" );
- # Delete if article has changed since the cache was made
- $canCache = $article->checkTouched();
- $cacheTime = $value->getCacheTime();
- $touched = $article->mTouched;
- if ( !$canCache || $value->expired( $touched ) ) {
- if ( !$canCache ) {
- wfIncrStats( "pcache_miss_invalid" );
- wfDebug( "Invalid cached redirect, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
- } else {
- wfIncrStats( "pcache_miss_expired" );
- wfDebug( "Key expired, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
- }
- $this->mMemc->delete( $key );
- $value = false;
- } else {
- if ( isset( $value->mTimestamp ) ) {
- $article->mTimestamp = $value->mTimestamp;
- }
- wfIncrStats( "pcache_hit" );
- }
- } else {
- wfDebug( "Parser cache miss.\n" );
- wfIncrStats( "pcache_miss_absent" );
- $value = false;
- }
-
- wfProfileOut( $fname );
- return $value;
- }
-
- function save( $parserOutput, &$article, &$user ){
- global $wgParserCacheExpireTime;
- $key = $this->getKey( $article, $user );
-
- if( $parserOutput->getCacheTime() != -1 ) {
-
- $now = wfTimestampNow();
- $parserOutput->setCacheTime( $now );
-
- // Save the timestamp so that we don't have to load the revision row on view
- $parserOutput->mTimestamp = $article->getTimestamp();
-
- $parserOutput->mText .= "\n<!-- Saved in parser cache with key $key and timestamp $now -->\n";
- wfDebug( "Saved in parser cache with key $key and timestamp $now\n" );
-
- if( $parserOutput->containsOldMagic() ){
- $expire = 3600; # 1 hour
- } else {
- $expire = $wgParserCacheExpireTime;
- }
- $this->mMemc->set( $key, $parserOutput, $expire );
-
- } else {
- wfDebug( "Parser output was marked as uncacheable and has not been saved.\n" );
- }
- }
-
-}
-
-