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<?php
/**
* Run pending jobs.
*
* 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 Maintenance
*/
require_once __DIR__ . '/Maintenance.php';
use MediaWiki\Maintenance\ForkController;
use MediaWiki\Settings\SettingsBuilder;
/**
* Maintenance script that runs pending jobs.
*
* @ingroup Maintenance
*/
class RunJobs extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription( 'Run pending jobs' );
$this->addOption( 'maxjobs', 'Maximum number of jobs to run', false, true );
$this->addOption( 'maxtime', 'Maximum amount of wall-clock time', false, true );
$this->addOption( 'type', 'Type of job to run', false, true );
$this->addOption( 'procs', 'Number of processes to use', false, true );
$this->addOption( 'nothrottle', 'Ignore job throttling configuration', false, false );
$this->addOption( 'result', 'Set to "json" to print only a JSON response', false, true );
$this->addOption( 'wait', 'Wait for new jobs instead of exiting', false, false );
}
public function finalSetup( SettingsBuilder $settingsBuilder ) {
// So extensions (and other code) can check whether they're running in job mode.
// This is not defined if this script is included from installer/updater or phpunit.
define( 'MEDIAWIKI_JOB_RUNNER', true );
parent::finalSetup( $settingsBuilder );
}
public function memoryLimit() {
if ( $this->hasOption( 'memory-limit' ) ) {
return parent::memoryLimit();
}
// Don't eat all memory on the machine if we get a bad job.
return "150M";
}
public function execute() {
if ( $this->hasOption( 'procs' ) ) {
$procs = intval( $this->getOption( 'procs' ) );
if ( $procs < 1 || $procs > 1000 ) {
$this->fatalError( "Invalid argument to --procs" );
} elseif ( $procs != 1 ) {
try {
$fc = new ForkController( $procs );
} catch ( Throwable $e ) {
$this->fatalError( $e->getMessage() );
}
if ( $fc->start() != 'child' ) {
return;
}
}
}
$outputJSON = ( $this->getOption( 'result' ) === 'json' );
$wait = $this->hasOption( 'wait' );
$runner = $this->getServiceContainer()->getJobRunner();
if ( !$outputJSON ) {
$runner->setDebugHandler( [ $this, 'debugInternal' ] );
}
$type = $this->getOption( 'type', false );
$maxJobs = $this->getOption( 'maxjobs', false );
$maxTime = $this->getOption( 'maxtime', false );
$throttle = !$this->hasOption( 'nothrottle' );
while ( true ) {
$response = $runner->run( [
'type' => $type,
'maxJobs' => $maxJobs,
'maxTime' => $maxTime,
'throttle' => $throttle,
] );
if ( $outputJSON ) {
$this->output( FormatJson::encode( $response, true ) );
}
if (
!$wait ||
$response['reached'] === 'time-limit' ||
$response['reached'] === 'job-limit' ||
$response['reached'] === 'memory-limit' ||
$response['reached'] === 'exception'
) {
// If job queue is empty, output it
if ( !$outputJSON && $response['jobs'] === [] ) {
$this->output( "Job queue is empty.\n" );
}
break;
}
if ( $maxJobs !== false ) {
$maxJobs -= count( $response['jobs'] );
}
sleep( 1 );
}
}
/**
* @param string $s
*/
public function debugInternal( $s ) {
$this->output( $s );
}
}
$maintClass = RunJobs::class;
require_once RUN_MAINTENANCE_IF_MAIN;
|
