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<?php
namespace Zenstruck\ScheduleBundle\Schedule\Extension;
use Symfony\Component\Lock\LockFactory;
use Zenstruck\ScheduleBundle\Schedule\Extension;
/**
* @author Kevin Bond <[email protected]>
*/
final class SingleServerExtension implements Extension, HasMissingHandlerMessage
{
public const DEFAULT_TTL = 3600;
private $ttl;
private $lock;
* @param int $ttl Maximum expected lock duration in seconds
public function __construct(int $ttl = self::DEFAULT_TTL)
$this->ttl = $ttl;
$this->lock = new Lock(self::class);
}
public function __toString(): string
return 'Run on single server';
public function aquireLock(LockFactory $lockFactory, string $mutex, int $timestamp): bool
$mutex .= \date('Hi', $timestamp);
return $this->lock->aquire($lockFactory, $mutex, $this->ttl);
public function getMissingHandlerMessage(): string
return 'To use "onSingleServer" you must configure a lock factory (config path: "zenstruck_schedule.single_server_handler").';
zenstruck /
schedule-bundle
