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<?php
/**
* @package Freemius
* @copyright Copyright (c) 2015, Freemius, Inc.
* @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3
* @since 2.1.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
require_once WP_FS__DIR_INCLUDES . '/class-fs-lock.php';
/**
* Class FS_User_Lock
*/
class FS_User_Lock {
/**
* @var FS_Lock
*/
private $_lock;
#--------------------------------------------------------------------------------
#region Singleton
#--------------------------------------------------------------------------------
/**
* @var FS_User_Lock
*/
private static $_instance;
/**
* @author Vova Feldman (@svovaf)
* @since 2.1.0
*
* @return FS_User_Lock
*/
static function instance() {
if ( ! isset( self::$_instance ) ) {
self::$_instance = new self();
}
return self::$_instance;
}
#endregion
private function __construct() {
$current_user_id = Freemius::get_current_wp_user_id();
$this->_lock = new FS_Lock( "locked_{$current_user_id}" );
}
/**
* Try to acquire lock. If the lock is already set or is being acquired by another locker, don't do anything.
*
* @author Vova Feldman (@svovaf)
* @since 2.1.0
*
* @param int $expiration
*
* @return bool TRUE if successfully acquired lock.
*/
function try_lock( $expiration = 0 ) {
return $this->_lock->try_lock( $expiration );
}
/**
* Acquire lock regardless if it's already acquired by another locker or not.
*
* @author Vova Feldman (@svovaf)
* @since 2.1.0
*
* @param int $expiration
*/
function lock( $expiration = 0 ) {
$this->_lock->lock( $expiration );
}
/**
* Unlock the lock.
*
* @author Vova Feldman (@svovaf)
* @since 2.1.0
*/
function unlock() {
$this->_lock->unlock();
}
}