From 946fec339909a4e01c09d81a0782eff837816237 Mon Sep 17 00:00:00 2001
From: Max Semenik <maxsem@users.mediawiki.org>
Date: Tue, 16 Feb 2010 12:56:02 +0000
Subject: [PATCH] Removed MMCache support, this thing is dead. Partially
 implements bug 19193

---
 RELEASE-NOTES                |  1 +
 config/Installer.php         | 19 +++------------
 includes/AutoLoader.php      |  1 -
 includes/BagOStuff.php       | 47 +-----------------------------------
 includes/DefaultSettings.php |  2 +-
 includes/Defines.php         |  2 +-
 includes/ObjectCache.php     |  2 --
 7 files changed, 7 insertions(+), 67 deletions(-)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index 39842bf0f6..873963a47e 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -326,6 +326,7 @@ comment from another wiki.
 * (bug 7264)  Magic word to give Page Title as if pipe-trick performed on it
   {{pipetrick:}}
 * (bug 20339) Allow using the pipe trick in log reasons
+* Support for Turck MMCache was removed
 
 === Bug fixes in 1.16 ===
 
diff --git a/config/Installer.php b/config/Installer.php
index d60f378a8e..384a94ba9a 100644
--- a/config/Installer.php
+++ b/config/Installer.php
@@ -503,11 +503,6 @@ if( $memlimit == -1 ) {
 	print "</li>\n";
 }
 
-$conf->turck = function_exists( 'mmcache_get' );
-if ( $conf->turck ) {
-	print "<li><a href=\"http://turck-mmcache.sourceforge.net/\">Turck MMCache</a> installed</li>\n";
-}
-
 $conf->xcache = function_exists( 'xcache_get' );
 if( $conf->xcache )
 	print "<li><a href=\"http://trac.lighttpd.net/xcache/\">XCache</a> installed</li>\n";
@@ -519,15 +514,13 @@ if ($conf->apc ) {
 
 $conf->eaccel = function_exists( 'eaccelerator_get' );
 if ( $conf->eaccel ) {
-	$conf->turck = 'eaccelerator';
 	print "<li><a href=\"http://eaccelerator.sourceforge.net/\">eAccelerator</a> installed</li>\n";
 }
 
 $conf->dba = function_exists( 'dba_open' );
 
-if( !( $conf->turck || $conf->eaccel || $conf->apc || $conf->xcache ) ) {
-	echo( '<li>Couldn\'t find <a href="http://turck-mmcache.sourceforge.net">Turck MMCache</a>,
-		<a href="http://eaccelerator.sourceforge.net">eAccelerator</a>,
+if( !( $conf->eaccel || $conf->apc || $conf->xcache ) ) {
+	echo( '<li>Couldn\'t find <a href="http://eaccelerator.sourceforge.net">eAccelerator</a>,
 		<a href="http://www.php.net/apc">APC</a> or <a href="http://trac.lighttpd.net/xcache/">XCache</a>;
 		cannot use these for object caching.</li>' );
 }
@@ -1459,11 +1452,6 @@ if( count( $errs ) ) {
 		<ul class="plain">
 		<li><?php aField( $conf, "Shm", "No caching", "radio", "none" ); ?></li>
 		<?php
-			if ( $conf->turck ) {
-				echo "<li>";
-				aField( $conf, "Shm", "Turck MMCache", "radio", "turck" );
-				echo "</li>\n";
-			}
 			if( $conf->xcache ) {
 				echo "<li>";
 				aField( $conf, 'Shm', 'XCache', 'radio', 'xcache' );
@@ -1493,7 +1481,7 @@ if( count( $errs ) ) {
 		An object caching system such as memcached will provide a significant performance boost,
 		but needs to be installed. Provide the server addresses and ports in a comma-separated list.
 		<br /><br />
-		MediaWiki can also detect and support eAccelerator, Turck MMCache, APC, and XCache, but
+		MediaWiki can also detect and support eAccelerator, APC, and XCache, but
 		these should not be used if the wiki will be running on multiple application servers.
 		<br /><br />
 		DBA (Berkeley-style DB) is generally slower than using no cache at all, and is only
@@ -1805,7 +1793,6 @@ function writeLocalSettings( $conf ) {
 			$cacheType = 'CACHE_MEMCACHED';
 			$mcservers = var_export( $conf->MCServerArray, true );
 			break;
-		case 'turck':
 		case 'xcache':
 		case 'apc':
 		case 'eaccel':
diff --git a/includes/AutoLoader.php b/includes/AutoLoader.php
index 45816347ab..0f8019dbfb 100644
--- a/includes/AutoLoader.php
+++ b/includes/AutoLoader.php
@@ -231,7 +231,6 @@ $wgAutoloadLocalClasses = array(
 	'TitleArrayFromResult' => 'includes/TitleArray.php',
 	'TitleListDependency' => 'includes/CacheDependency.php',
 	'TransformParameterError' => 'includes/MediaTransformOutput.php',
-	'TurckBagOStuff' => 'includes/BagOStuff.php',
 	'UnlistedSpecialPage' => 'includes/SpecialPage.php',
 	'UploadBase' => 'includes/upload/UploadBase.php',
 	'UploadFromStash' => 'includes/upload/UploadFromStash.php',
diff --git a/includes/BagOStuff.php b/includes/BagOStuff.php
index afd52a0f6f..ac0263d834 100644
--- a/includes/BagOStuff.php
+++ b/includes/BagOStuff.php
@@ -461,51 +461,6 @@ class SqlBagOStuff extends BagOStuff {
  */
 class MediaWikiBagOStuff extends SqlBagOStuff { }
 
-/**
- * This is a wrapper for Turck MMCache's shared memory functions.
- *
- * You can store objects with mmcache_put() and mmcache_get(), but Turck seems
- * to use a weird custom serializer that randomly segfaults. So we wrap calls
- * with serialize()/unserialize().
- *
- * The thing I noticed about the Turck serialized data was that unlike ordinary
- * serialize(), it contained the names of methods, and judging by the amount of
- * binary data, perhaps even the bytecode of the methods themselves. It may be
- * that Turck's serializer is faster, so a possible future extension would be
- * to use it for arrays but not for objects.
- *
- * @ingroup Cache
- */
-class TurckBagOStuff extends BagOStuff {
-	public function get( $key ) {
-		$val = mmcache_get( $key );
-		if ( is_string( $val ) ) {
-			$val = unserialize( $val );
-		}
-		return $val;
-	}
-
-	public function set( $key, $value, $exptime = 0 ) {
-		mmcache_put( $key, serialize( $value ), $exptime );
-		return true;
-	}
-
-	public function delete( $key, $time = 0 ) {
-		mmcache_rm( $key );
-		return true;
-	}
-
-	public function lock( $key, $waitTimeout = 0 ) {
-		mmcache_lock( $key );
-		return true;
-	}
-
-	public function unlock( $key ) {
-		mmcache_unlock( $key );
-		return true;
-	}
-}
-
 /**
  * This is a wrapper for APC's shared memory functions
  *
@@ -544,7 +499,7 @@ class APCBagOStuff extends BagOStuff {
 /**
  * This is a wrapper for eAccelerator's shared memory functions.
  *
- * This is basically identical to the Turck MMCache version,
+ * This is basically identical to the deceased Turck MMCache version,
  * mostly because eAccelerator is based on Turck MMCache.
  *
  * @ingroup Cache
diff --git a/includes/DefaultSettings.php b/includes/DefaultSettings.php
index c38c380ceb..75f5a5617a 100644
--- a/includes/DefaultSettings.php
+++ b/includes/DefaultSettings.php
@@ -1280,7 +1280,7 @@ $wgDevelopmentWarnings = false;
 $wgUseCategoryBrowser   = false;
 
 /**
- * Keep parsed pages in a cache (objectcache table, turck, or memcached)
+ * Keep parsed pages in a cache (objectcache table or memcached)
  * to speed up output of the same page viewed by another user with the
  * same options.
  *
diff --git a/includes/Defines.php b/includes/Defines.php
index 02ddc882b2..7be569af8d 100644
--- a/includes/Defines.php
+++ b/includes/Defines.php
@@ -103,7 +103,7 @@ define( 'CACHE_ANYTHING', -1 );  // Use anything, as long as it works
 define( 'CACHE_NONE', 0 );       // Do not cache
 define( 'CACHE_DB', 1 );         // Store cache objects in the DB
 define( 'CACHE_MEMCACHED', 2 );  // MemCached, must specify servers in $wgMemCacheServers
-define( 'CACHE_ACCEL', 3 );      // eAccelerator or Turck, whichever is available
+define( 'CACHE_ACCEL', 3 );      // eAccelerator
 define( 'CACHE_DBA', 4 );        // Use PHP's DBA extension to store in a DBM-style database
 /**#@-*/
 
diff --git a/includes/ObjectCache.php b/includes/ObjectCache.php
index b52745b179..f83e00202a 100644
--- a/includes/ObjectCache.php
+++ b/includes/ObjectCache.php
@@ -66,8 +66,6 @@ function &wfGetCache( $inputType ) {
 				$wgCaches[CACHE_ACCEL] = new APCBagOStuff;
 			} elseif( function_exists( 'xcache_get' ) ) {
 				$wgCaches[CACHE_ACCEL] = new XCacheBagOStuff();
-			} elseif ( function_exists( 'mmcache_get' ) ) {
-				$wgCaches[CACHE_ACCEL] = new TurckBagOStuff;
 			} else {
 				$wgCaches[CACHE_ACCEL] = false;
 			}
-- 
2.20.1