db7d95de27
Uses the same logic, but without the dependency on MediaWiki. Planning to use this in the het-deploy code. Change-Id: I5d6baf6fe63d135c679e4795287daa0a8722dde6
75 lines
2.1 KiB
PHP
75 lines
2.1 KiB
PHP
<?php
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/**
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* DBA-based CDB reader/writer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* Reader class which uses the DBA extension
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*/
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class CdbReaderDBA extends CdbReader {
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public function __construct( $fileName ) {
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$this->handle = dba_open( $fileName, 'r-', 'cdb' );
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if ( !$this->handle ) {
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throw new CdbException( 'Unable to open CDB file "' . $fileName . '"' );
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}
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}
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public function close() {
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if ( isset( $this->handle ) ) {
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dba_close( $this->handle );
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}
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unset( $this->handle );
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}
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public function get( $key ) {
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return dba_fetch( $key, $this->handle );
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}
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}
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/**
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* Writer class which uses the DBA extension
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*/
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class CdbWriterDBA extends CdbWriter {
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public function __construct( $fileName ) {
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$this->realFileName = $fileName;
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$this->tmpFileName = $fileName . '.tmp.' . mt_rand( 0, 0x7fffffff );
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$this->handle = dba_open( $this->tmpFileName, 'n', 'cdb_make' );
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if ( !$this->handle ) {
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throw new CdbException( 'Unable to open CDB file for write "' . $fileName . '"' );
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}
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}
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public function set( $key, $value ) {
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return dba_insert( $key, $value, $this->handle );
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}
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public function close() {
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if ( isset( $this->handle ) ) {
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dba_close( $this->handle );
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}
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if ( $this->isWindows() ) {
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unlink( $this->realFileName );
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}
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if ( !rename( $this->tmpFileName, $this->realFileName ) ) {
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throw new CdbException( 'Unable to move the new CDB file into place.' );
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}
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unset( $this->handle );
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}
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}
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