friendica/src/Module/Worker.php

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2020-01-31 22:38:49 +01:00
<?php
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/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
2020-01-31 22:38:49 +01:00
namespace Friendica\Module;
use Friendica\BaseModule;
use Friendica\Core\System;
use Friendica\Core\Worker as WorkerCore;
use Friendica\Database\DBA;
use Friendica\DI;
use Friendica\Util\DateTimeFormat;
/**
* Module for starting the backend worker through a frontend call
*/
class Worker extends BaseModule
{
public static function rawContent(array $parameters = [])
{
if (!DI::config()->get("system", "frontend_worker")) {
return;
}
// Ensure that all "strtotime" operations do run timezone independent
date_default_timezone_set('UTC');
// We don't need the following lines if we can execute background jobs.
// So we just wake up the worker if it sleeps.
if (function_exists("proc_open")) {
WorkerCore::executeIfIdle();
return;
}
WorkerCore::clearProcesses();
$workers = DBA::count('process', ['command' => 'worker.php']);
if ($workers > DI::config()->get("system", "worker_queues", 4)) {
return;
}
WorkerCore::startProcess();
DI::logger()->notice('Front end worker started.', ['pid' => getmypid()]);
WorkerCore::callWorker();
if ($r = WorkerCore::workerProcess()) {
// On most configurations this parameter wouldn't have any effect.
// But since it doesn't destroy anything, we just try to get more execution time in any way.
set_time_limit(0);
$fields = ['executed' => DateTimeFormat::utcNow(), 'pid' => getmypid(), 'done' => false];
$condition = ['id' => $r[0]["id"], 'pid' => 0];
if (DBA::update('workerqueue', $fields, $condition)) {
WorkerCore::execute($r[0]);
}
}
WorkerCore::callWorker();
WorkerCore::unclaimProcess();
WorkerCore::endProcess();
System::httpExit(200, 'Frontend worker stopped.');
}
}