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authorPierre Schmitz <pierre@archlinux.de>2014-12-27 15:41:37 +0100
committerPierre Schmitz <pierre@archlinux.de>2014-12-31 11:43:28 +0100
commitc1f9b1f7b1b77776192048005dcc66dcf3df2bfb (patch)
tree2b38796e738dd74cb42ecd9bfd151803108386bc /includes/Cdb.php
parentb88ab0086858470dd1f644e64cb4e4f62bb2be9b (diff)
Update to MediaWiki 1.24.1
Diffstat (limited to 'includes/Cdb.php')
-rw-r--r--includes/Cdb.php184
1 files changed, 0 insertions, 184 deletions
diff --git a/includes/Cdb.php b/includes/Cdb.php
deleted file mode 100644
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--- a/includes/Cdb.php
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@@ -1,184 +0,0 @@
-<?php
-/**
- * Native CDB file reader and writer.
- *
- * 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
- */
-
-/**
- * Read from a CDB file.
- * Native and pure PHP implementations are provided.
- * http://cr.yp.to/cdb.html
- */
-abstract class CdbReader {
- /**
- * Open a file and return a subclass instance
- *
- * @param $fileName string
- *
- * @return CdbReader
- */
- public static function open( $fileName ) {
- if ( self::haveExtension() ) {
- return new CdbReader_DBA( $fileName );
- } else {
- wfDebug( "Warning: no dba extension found, using emulation.\n" );
- return new CdbReader_PHP( $fileName );
- }
- }
-
- /**
- * Returns true if the native extension is available
- *
- * @return bool
- */
- public static function haveExtension() {
- if ( !function_exists( 'dba_handlers' ) ) {
- return false;
- }
- $handlers = dba_handlers();
- if ( !in_array( 'cdb', $handlers ) || !in_array( 'cdb_make', $handlers ) ) {
- return false;
- }
- return true;
- }
-
- /**
- * Construct the object and open the file
- */
- abstract function __construct( $fileName );
-
- /**
- * Close the file. Optional, you can just let the variable go out of scope.
- */
- abstract function close();
-
- /**
- * Get a value with a given key. Only string values are supported.
- *
- * @param $key string
- */
- abstract public function get( $key );
-}
-
-/**
- * Write to a CDB file.
- * Native and pure PHP implementations are provided.
- */
-abstract class CdbWriter {
- /**
- * Open a writer and return a subclass instance.
- * The user must have write access to the directory, for temporary file creation.
- *
- * @param $fileName string
- *
- * @return CdbWriter_DBA|CdbWriter_PHP
- */
- public static function open( $fileName ) {
- if ( CdbReader::haveExtension() ) {
- return new CdbWriter_DBA( $fileName );
- } else {
- wfDebug( "Warning: no dba extension found, using emulation.\n" );
- return new CdbWriter_PHP( $fileName );
- }
- }
-
- /**
- * Create the object and open the file
- *
- * @param $fileName string
- */
- abstract function __construct( $fileName );
-
- /**
- * Set a key to a given value. The value will be converted to string.
- * @param $key string
- * @param $value string
- */
- abstract public function set( $key, $value );
-
- /**
- * Close the writer object. You should call this function before the object
- * goes out of scope, to write out the final hashtables.
- */
- abstract public function close();
-}
-
-/**
- * Reader class which uses the DBA extension
- */
-class CdbReader_DBA {
- var $handle;
-
- function __construct( $fileName ) {
- $this->handle = dba_open( $fileName, 'r-', 'cdb' );
- if ( !$this->handle ) {
- throw new MWException( 'Unable to open CDB file "' . $fileName . '"' );
- }
- }
-
- function close() {
- if ( isset( $this->handle ) ) {
- dba_close( $this->handle );
- }
- unset( $this->handle );
- }
-
- function get( $key ) {
- return dba_fetch( $key, $this->handle );
- }
-}
-
-/**
- * Writer class which uses the DBA extension
- */
-class CdbWriter_DBA {
- var $handle, $realFileName, $tmpFileName;
-
- function __construct( $fileName ) {
- $this->realFileName = $fileName;
- $this->tmpFileName = $fileName . '.tmp.' . mt_rand( 0, 0x7fffffff );
- $this->handle = dba_open( $this->tmpFileName, 'n', 'cdb_make' );
- if ( !$this->handle ) {
- throw new MWException( 'Unable to open CDB file for write "' . $fileName . '"' );
- }
- }
-
- function set( $key, $value ) {
- return dba_insert( $key, $value, $this->handle );
- }
-
- function close() {
- if ( isset( $this->handle ) ) {
- dba_close( $this->handle );
- }
- if ( wfIsWindows() ) {
- unlink( $this->realFileName );
- }
- if ( !rename( $this->tmpFileName, $this->realFileName ) ) {
- throw new MWException( 'Unable to move the new CDB file into place.' );
- }
- unset( $this->handle );
- }
-
- function __destruct() {
- if ( isset( $this->handle ) ) {
- $this->close();
- }
- }
-}