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<?php |
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/** |
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* Run pending jobs. |
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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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* @ingroup Maintenance |
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*/ |
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require_once __DIR__ . '/Maintenance.php'; |
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use MediaWiki\Logger\LoggerFactory; |
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/** |
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* Maintenance script that runs pending jobs. |
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* |
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* @ingroup Maintenance |
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*/ |
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class RunJobs extends Maintenance { |
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public function __construct() { |
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parent::__construct(); |
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$this->addDescription( 'Run pending jobs' ); |
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$this->addOption( 'maxjobs', 'Maximum number of jobs to run', false, true ); |
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$this->addOption( 'maxtime', 'Maximum amount of wall-clock time', false, true ); |
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$this->addOption( 'type', 'Type of job to run', false, true ); |
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$this->addOption( 'procs', 'Number of processes to use', false, true ); |
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$this->addOption( 'nothrottle', 'Ignore job throttling configuration', false, false ); |
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$this->addOption( 'result', 'Set to JSON to print only a JSON response', false, true ); |
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$this->addOption( 'wait', 'Wait for new jobs instead of exiting', false, false ); |
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} |
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public function memoryLimit() { |
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if ( $this->hasOption( 'memory-limit' ) ) { |
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return parent::memoryLimit(); |
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} |
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// Don't eat all memory on the machine if we get a bad job. |
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return "150M"; |
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} |
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public function execute() { |
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if ( $this->hasOption( 'procs' ) ) { |
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$procs = intval( $this->getOption( 'procs' ) ); |
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if ( $procs < 1 || $procs > 1000 ) { |
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$this->error( "Invalid argument to --procs", true ); |
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} elseif ( $procs != 1 ) { |
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$fc = new ForkController( $procs ); |
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if ( $fc->start() != 'child' ) { |
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exit( 0 ); |
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} |
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} |
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} |
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$outputJSON = ( $this->getOption( 'result' ) === 'json' ); |
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$wait = $this->hasOption( 'wait' ); |
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$runner = new JobRunner( LoggerFactory::getInstance( 'runJobs' ) ); |
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if ( !$outputJSON ) { |
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$runner->setDebugHandler( [ $this, 'debugInternal' ] ); |
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} |
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$type = $this->getOption( 'type', false ); |
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$maxJobs = $this->getOption( 'maxjobs', false ); |
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$maxTime = $this->getOption( 'maxtime', false ); |
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$throttle = !$this->hasOption( 'nothrottle' ); |
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while ( true ) { |
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$response = $runner->run( [ |
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'type' => $type, |
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'maxJobs' => $maxJobs, |
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'maxTime' => $maxTime, |
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'throttle' => $throttle, |
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] ); |
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if ( $outputJSON ) { |
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$this->output( FormatJson::encode( $response, true ) ); |
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} |
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if ( |
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!$wait || |
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$response['reached'] === 'time-limit' || |
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$response['reached'] === 'job-limit' || |
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$response['reached'] === 'memory-limit' |
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) { |
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break; |
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} |
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if ( $maxJobs !== false ) { |
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$maxJobs -= count( $response['jobs'] ); |
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} |
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sleep( 1 ); |
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} |
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} |
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/** |
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* @param string $s |
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*/ |
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public function debugInternal( $s ) { |
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$this->output( $s ); |
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} |
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} |
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$maintClass = "RunJobs"; |
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require_once RUN_MAINTENANCE_IF_MAIN; |
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wikimedia /
mediawiki
Loading history...
The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.