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<?php /** * 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 */ namespace Cdb\Writer; use Cdb\Exception; use Cdb\Writer; /** * Writer class which uses the DBA extension (php-dba) */ class DBA extends Writer { /** * @param string $fileName * @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 ); } }
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