diff options
Diffstat (limited to 'vendor/wikimedia/cdb/src/Writer/DBA.php')
-rw-r--r-- | vendor/wikimedia/cdb/src/Writer/DBA.php | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/vendor/wikimedia/cdb/src/Writer/DBA.php b/vendor/wikimedia/cdb/src/Writer/DBA.php new file mode 100644 index 00000000..eb525f4c --- /dev/null +++ b/vendor/wikimedia/cdb/src/Writer/DBA.php @@ -0,0 +1,63 @@ +<?php + +namespace Cdb\Writer; +use Cdb\Exception; +use Cdb\Writer; + +/** + * DBA-based CDB reader/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 + */ + +/** + * Writer class which uses the DBA extension + */ +class DBA extends Writer { + /** + * @throws Exception + */ + public 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 Exception( 'Unable to open CDB file for write "' . $fileName . '"' ); + } + } + + public function set( $key, $value ) { + return dba_insert( $key, $value, $this->handle ); + } + + /** + * @throws Exception + */ + public function close() { + if ( isset( $this->handle ) ) { + dba_close( $this->handle ); + } + if ( $this->isWindows() ) { + unlink( $this->realFileName ); + } + if ( !rename( $this->tmpFileName, $this->realFileName ) ) { + throw new Exception( 'Unable to move the new CDB file into place.' ); + } + unset( $this->handle ); + } +} |