From 42208a64eea3ff0c5ae63902e6cb688b074ee95a Mon Sep 17 00:00:00 2001
From: Chad Horohoe <demon@users.mediawiki.org>
Date: Thu, 13 May 2010 17:41:13 +0000
Subject: [PATCH] (bug 22844) Support Micosoft Windows Cache aka WINCACHE

---
 RELEASE-NOTES            |  1 +
 includes/AutoLoader.php  |  1 +
 includes/BagOStuff.php   | 57 ++++++++++++++++++++++++++++++++++++++++
 includes/ObjectCache.php |  2 ++
 4 files changed, 61 insertions(+)

diff --git a/RELEASE-NOTES b/RELEASE-NOTES
index b76c611a29..69c94e6764 100644
--- a/RELEASE-NOTES
+++ b/RELEASE-NOTES
@@ -72,6 +72,7 @@ it from source control: http://www.mediawiki.org/wiki/Download_from_SVN
   is no title match in search and the user has no rights to create pages.
 * (bug 23429) Added new hook WatchlistEditorBuildRemoveLine
 * (bug 18488) Added maintenance script refreshCategoryCounts.php
+* (bug 22844) Added support for WinCache object caching
 
 === Bug fixes in 1.17 ===
 * (bug 17560) Half-broken deletion moved image files to deletion archive
diff --git a/includes/AutoLoader.php b/includes/AutoLoader.php
index ec64319b4a..03ca5734c8 100644
--- a/includes/AutoLoader.php
+++ b/includes/AutoLoader.php
@@ -254,6 +254,7 @@ $wgAutoloadLocalClasses = array(
 	'WikiMap' => 'includes/WikiMap.php',
 	'WikiReference' => 'includes/WikiMap.php',
 	'WikiXmlError' => 'includes/WikiError.php',
+	'WinCacheBagOStuff' => 'includes/BagOStuff.php',
 	'XCacheBagOStuff' => 'includes/BagOStuff.php',
 	'XmlDumpWriter' => 'includes/Export.php',
 	'Xml' => 'includes/Xml.php',
diff --git a/includes/BagOStuff.php b/includes/BagOStuff.php
index ac0263d834..8cd5d543ca 100644
--- a/includes/BagOStuff.php
+++ b/includes/BagOStuff.php
@@ -735,3 +735,60 @@ class DBABagOStuff extends BagOStuff {
 		return $result;
 	}
 }
+
+/**
+ * Wrapper for WinCache object caching functions; identical interface
+ * to the APC wrapper
+ *
+ * @ingroup Cache
+ */
+class WinCacheBagOStuff extends BagOStuff {
+
+	/**
+	 * Get a value from the WinCache object cache
+	 *
+	 * @param $key String: cache key
+	 * @return mixed
+	 */
+	public function get( $key ) {
+		$val = wincache_ucache_get( $key );
+		if ( is_string( $val ) )
+			$val = unserialize( $val );
+		return $val;
+	}
+
+	/**
+	 * Store a value in the WinCache object cache
+	 *
+	 * @param $key String: cache key
+	 * @param $value Mixed: object to store
+	 * @param $expire Int: expiration time
+	 * @return bool
+	 */
+	public function set( $key, $value, $expire = 0 ) {
+		wincache_ucache_set( $key, serialize( $value ), $expire );
+		return true;
+	}
+
+	/**
+	 * Remove a value from the WinCache object cache
+	 *
+	 * @param $key String: cache key
+	 * @param $time Int: not used in this implementation
+	 * @return bool
+	 */
+	public function delete( $key, $time = 0 ) {
+		wincache_ucache_delete( $key );
+		return true;
+	}
+
+	public function keys() {
+		$info = wincache_ucache_info();
+		$list = $info['ucache_entries'];
+		$keys = array();
+		foreach ( $list as $entry ) {
+			$keys[] = $entry['key_name'];
+		}
+		return $keys;
+	}
+}
diff --git a/includes/ObjectCache.php b/includes/ObjectCache.php
index f83e00202a..04c587613b 100644
--- a/includes/ObjectCache.php
+++ b/includes/ObjectCache.php
@@ -66,6 +66,8 @@ function &wfGetCache( $inputType ) {
 				$wgCaches[CACHE_ACCEL] = new APCBagOStuff;
 			} elseif( function_exists( 'xcache_get' ) ) {
 				$wgCaches[CACHE_ACCEL] = new XCacheBagOStuff();
+			} elseif( function_exists( 'wincache_ucache_get' ) ) {
+				$wgCaches[CACHE_ACCEL] = new WinCacheBagOStuff();
 			} else {
 				$wgCaches[CACHE_ACCEL] = false;
 			}
-- 
2.20.1