3 +--------------------------------------------------------------------+
4 | CiviCRM version 4.7 |
5 +--------------------------------------------------------------------+
6 | Copyright CiviCRM LLC (c) 2004-2018 |
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 |
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15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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24 | see the CiviCRM license FAQ at http://civicrm.org/licensing |
25 +--------------------------------------------------------------------+
27 namespace Civi\Core\Lock
;
32 interface LockInterface
{
37 * @param int|NULL $timeout
38 * The number of seconds to wait to get the lock.
39 * For a default value, use NULL.
42 public function acquire($timeout = NULL);
45 * @return bool|null|string
48 public function release();
51 * @return bool|null|string
54 * Not supported by some locking strategies. If you need to poll, better
57 public function isFree();
62 public function isAcquired();