mirror of
https://github.com/YunoHost-Apps/mediawiki_ynh.git
synced 2024-09-03 19:46:05 +02:00
76 lines
2.3 KiB
PHP
76 lines
2.3 KiB
PHP
<?php
|
|
/**
|
|
* Degenerate job that does nothing.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* Degenerate job that does nothing, but can optionally replace itself
|
|
* in the queue and/or sleep for a brief time period. These can be used
|
|
* to represent "no-op" jobs or test lock contention and performance.
|
|
*
|
|
* @par Example:
|
|
* Inserting a null job in the configured job queue:
|
|
* @code
|
|
* $ php maintenance/eval.php
|
|
* > $queue = JobQueueGroup::singleton();
|
|
* > $job = new NullJob( Title::newMainPage(), array( 'lives' => 10 ) );
|
|
* > $queue->push( $job );
|
|
* @endcode
|
|
* You can then confirm the job has been enqueued by using the showJobs.php
|
|
* maintenance utility:
|
|
* @code
|
|
* $ php maintenance/showJobs.php --group
|
|
* null: 1 queue; 0 claimed (0 active, 0 abandoned)
|
|
* $
|
|
* @endcode
|
|
*
|
|
* @ingroup JobQueue
|
|
*/
|
|
class NullJob extends Job {
|
|
/**
|
|
* @param $title Title (can be anything)
|
|
* @param array $params job parameters (lives, usleep)
|
|
* @param $id Integer: job id
|
|
*/
|
|
function __construct( $title, $params, $id = 0 ) {
|
|
parent::__construct( 'null', $title, $params, $id );
|
|
if ( !isset( $this->params['lives'] ) ) {
|
|
$this->params['lives'] = 1;
|
|
}
|
|
if ( !isset( $this->params['usleep'] ) ) {
|
|
$this->params['usleep'] = 0;
|
|
}
|
|
$this->removeDuplicates = !empty( $this->params['removeDuplicates'] );
|
|
}
|
|
|
|
public function run() {
|
|
if ( $this->params['usleep'] > 0 ) {
|
|
usleep( $this->params['usleep'] );
|
|
}
|
|
if ( $this->params['lives'] > 1 ) {
|
|
$params = $this->params;
|
|
$params['lives']--;
|
|
$job = new self( $this->title, $params );
|
|
JobQueueGroup::singleton()->push( $job );
|
|
}
|
|
return true;
|
|
}
|
|
}
|