<?php
namespace TYPO3\CMS\Core\Tests\Unit\Locking\Fixtures;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Core\Locking\LockingStrategyInterface;

/**
 * Dummy locking
 *
 * @author Markus Klein <klein.t3@reelworx.at>
 */
class DummyLock implements LockingStrategyInterface {

	/**
	 * @return int LOCK_CAPABILITY_* elements combined with bit-wise OR
	 */
	static public function getCapabilities() {
		return self::LOCK_CAPABILITY_EXCLUSIVE;
	}

	/**
	 * @return int Returns a priority for the method. 0 to 100, 100 is highest
	 */
	static public function getPriority() {
		return 100;
	}

	/**
	 * @param string $subject ID to identify this lock in the system
	 */
	public function __construct($subject) {
	}

	/**
	 * Try to acquire a lock
	 *
	 * @param int $mode LOCK_CAPABILITY_EXCLUSIVE or LOCK_CAPABILITY_SHARED
	 * @return bool Returns TRUE if the lock was acquired successfully
	 */
	public function acquire($mode = self::LOCK_CAPABILITY_EXCLUSIVE) {
		return FALSE;
	}

	/**
	 * Release the lock
	 *
	 * @return bool Returns TRUE on success or FALSE on failure
	 */
	public function release() {
		return FALSE;
	}

	/**
	 * Get status of this lock
	 *
	 * @return bool Returns TRUE if lock is acquired by this locker, FALSE otherwise
	 */
	public function isAcquired() {
		return FALSE;
	}

}