3 +--------------------------------------------------------------------+
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2019 |
7 +--------------------------------------------------------------------+
8 | This file is a part of CiviCRM. |
10 | CiviCRM is free software; you can copy, modify, and distribute it |
11 | under the terms of the GNU Affero General Public License |
12 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
14 | CiviCRM is distributed in the hope that it will be useful, but |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
17 | See the GNU Affero General Public License for more details. |
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20 | License and the CiviCRM Licensing Exception along |
21 | with this program; if not, contact CiviCRM LLC |
22 | at info[AT]civicrm[DOT]org. If you have questions about the |
23 | GNU Affero General Public License or the licensing of CiviCRM, |
24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
25 +--------------------------------------------------------------------+
27 namespace Civi\Core\Lock
;
32 * @copyright CiviCRM LLC (c) 2004-2019
34 class NullLock
implements LockInterface
{
36 private $hasLock = FALSE;
45 public static function create($name) {
52 * @param int|null $timeout
53 * The number of seconds to wait to get the lock.
54 * For a default value, use NULL.
58 public function acquire($timeout = NULL) {
59 $this->hasLock
= TRUE;
66 * @return bool|null|string
69 public function release() {
70 $this->hasLock
= FALSE;
75 * @return bool|null|string
78 * Not supported by some locking strategies. If you need to poll, better
81 public function isFree() {
82 return !$this->hasLock
;
88 public function isAcquired() {
89 return $this->hasLock
;