1 files changed, 0 insertions, 307 deletions
diff --git a/includes/objectcache/DBABagOStuff.php b/includes/objectcache/DBABagOStuff.php
deleted file mode 100644
index c82b3aa4..00000000
--- a/includes/objectcache/DBABagOStuff.php
+++ /dev/null
@@ -1,307 +0,0 @@
-<?php
-/**
- * Object caching using DBA backend.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @ingroup Cache
- */
-
-/**
- * Cache that uses DBA as a backend.
- * Slow due to the need to constantly open and close the file to avoid holding
- * writer locks. Intended for development use only,  as a memcached workalike
- * for systems that don't have it.
- *
- * On construction you can pass array( 'dir' => '/some/path' ); as a parameter
- * to override the default DBA files directory (wfTempDir()).
- *
- * @ingroup Cache
- */
-class DBABagOStuff extends BagOStuff {
-	var $mHandler, $mFile, $mReader, $mWriter, $mDisabled;
-
-	/**
-	 * @param $params array
-	 */
-	public function __construct( $params ) {
-		global $wgDBAhandler;
-
-		if ( !isset( $params['dir'] ) ) {
-			$params['dir'] = wfTempDir();
-		}
-
-		$this->mFile = $params['dir'] . '/mw-cache-' . wfWikiID() . '.db';
-		wfDebug( __CLASS__ . ": using cache file {$this->mFile}\n" );
-		$this->mHandler = $wgDBAhandler;
-	}
-
-	/**
-	 * Encode value and expiry for storage
-	 * @param $value
-	 * @param $expiry
-	 *
-	 * @return string
-	 */
-	protected function encode( $value, $expiry ) {
-		# Convert to absolute time
-		$expiry = $this->convertExpiry( $expiry );
-
-		return sprintf( '%010u', intval( $expiry ) ) . ' ' . serialize( $value );
-	}
-
-	/**
-	 * @param $blob string
-	 * @return array list containing value first and expiry second
-	 */
-	protected function decode( $blob ) {
-		if ( !is_string( $blob ) ) {
-			return array( false, 0 );
-		} else {
-			return array(
-				unserialize( substr( $blob, 11 ) ),
-				intval( substr( $blob, 0, 10 ) )
-			);
-		}
-	}
-
-	/**
-	 * @return resource
-	 */
-	protected function getReader() {
-		if ( file_exists( $this->mFile ) ) {
-			$handle = dba_open( $this->mFile, 'rl', $this->mHandler );
-		} else {
-			$handle = $this->getWriter();
-		}
-
-		if ( !$handle ) {
-			wfDebug( "Unable to open DBA cache file {$this->mFile}\n" );
-		}
-
-		return $handle;
-	}
-
-	/**
-	 * @return resource
-	 */
-	protected function getWriter() {
-		$handle = dba_open( $this->mFile, 'cl', $this->mHandler );
-
-		if ( !$handle ) {
-			wfDebug( "Unable to open DBA cache file {$this->mFile}\n" );
-		}
-
-		return $handle;
-	}
-
-	/**
-	 * @param $key string
-	 * @param $casToken[optional] mixed
-	 * @return mixed
-	 */
-	public function get( $key, &$casToken = null ) {
-		wfProfileIn( __METHOD__ );
-		wfDebug( __METHOD__ . "($key)\n" );
-
-		$handle = $this->getReader();
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		$val = dba_fetch( $key, $handle );
-		list( $val, $expiry ) = $this->decode( $val );
-
-		# Must close ASAP because locks are held
-		dba_close( $handle );
-
-		if ( $val !== false && $expiry && $expiry < time() ) {
-			# Key is expired, delete it
-			$handle = $this->getWriter();
-			dba_delete( $key, $handle );
-			dba_close( $handle );
-			wfDebug( __METHOD__ . ": $key expired\n" );
-			$val = false;
-		}
-
-		$casToken = $val;
-
-		wfProfileOut( __METHOD__ );
-
-		return $val;
-	}
-
-	/**
-	 * @param $key string
-	 * @param $value mixed
-	 * @param $exptime int
-	 * @return bool
-	 */
-	public function set( $key, $value, $exptime = 0 ) {
-		wfProfileIn( __METHOD__ );
-		wfDebug( __METHOD__ . "($key)\n" );
-
-		$blob = $this->encode( $value, $exptime );
-
-		$handle = $this->getWriter();
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		$ret = dba_replace( $key, $blob, $handle );
-		dba_close( $handle );
-
-		wfProfileOut( __METHOD__ );
-		return $ret;
-	}
-
-	/**
-	 * @param $casToken mixed
-	 * @param $key string
-	 * @param $value mixed
-	 * @param $exptime int
-	 * @return bool
-	 */
-	public function cas( $casToken, $key, $value, $exptime = 0 ) {
-		wfProfileIn( __METHOD__ );
-		wfDebug( __METHOD__ . "($key)\n" );
-
-		$blob = $this->encode( $value, $exptime );
-
-		$handle = $this->getWriter();
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		// DBA is locked to any other write connection, so we can safely
-		// compare the current & previous value before saving new value
-		$val = dba_fetch( $key, $handle );
-		list( $val, $exptime ) = $this->decode( $val );
-		if ( $casToken !== $val ) {
-			dba_close( $handle );
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		$ret = dba_replace( $key, $blob, $handle );
-		dba_close( $handle );
-
-		wfProfileOut( __METHOD__ );
-		return $ret;
-	}
-
-	/**
-	 * @param $key string
-	 * @param $time int
-	 * @return bool
-	 */
-	public function delete( $key, $time = 0 ) {
-		wfProfileIn( __METHOD__ );
-		wfDebug( __METHOD__ . "($key)\n" );
-
-		$handle = $this->getWriter();
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		$ret = !dba_exists( $key, $handle ) || dba_delete( $key, $handle );
-		dba_close( $handle );
-
-		wfProfileOut( __METHOD__ );
-		return $ret;
-	}
-
-	/**
-	 * @param $key string
-	 * @param $value mixed
-	 * @param $exptime int
-	 * @return bool
-	 */
-	public function add( $key, $value, $exptime = 0 ) {
-		wfProfileIn( __METHOD__ );
-
-		$blob = $this->encode( $value, $exptime );
-
-		$handle = $this->getWriter();
-
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		$ret = dba_insert( $key, $blob, $handle );
-
-		# Insert failed, check to see if it failed due to an expired key
-		if ( !$ret ) {
-			list( , $expiry ) = $this->decode( dba_fetch( $key, $handle ) );
-
-			if ( $expiry && $expiry < time() ) {
-				# Yes expired, delete and try again
-				dba_delete( $key, $handle );
-				$ret = dba_insert( $key, $blob, $handle );
-				# This time if it failed then it will be handled by the caller like any other race
-			}
-		}
-
-		dba_close( $handle );
-
-		wfProfileOut( __METHOD__ );
-		return $ret;
-	}
-
-	/**
-	 * @param $key string
-	 * @param $step integer
-	 * @return integer|bool
-	 */
-	public function incr( $key, $step = 1 ) {
-		wfProfileIn( __METHOD__ );
-
-		$handle = $this->getWriter();
-
-		if ( !$handle ) {
-			wfProfileOut( __METHOD__ );
-			return false;
-		}
-
-		list( $value, $expiry ) = $this->decode( dba_fetch( $key, $handle ) );
-		if ( $value !== false ) {
-			if ( $expiry && $expiry < time() ) {
-				# Key is expired, delete it
-				dba_delete( $key, $handle );
-				wfDebug( __METHOD__ . ": $key expired\n" );
-				$value = false;
-			} else {
-				$value += $step;
-				$blob = $this->encode( $value, $expiry );
-
-				$ret = dba_replace( $key, $blob, $handle );
-				$value = $ret ? $value : false;
-			}
-		}
-
-		dba_close( $handle );
-
-		wfProfileOut( __METHOD__ );
-
-		return ( $value === false ) ? false : (int)$value;
-	}
-}