PHP CI_Session_driver::_get_lock示例

_get_lock() protected method

A dummy method allowing drivers with no locking functionality (databases other than PostgreSQL and MySQL) to act as if they do acquire a lock.

protected _get_lock ( string $session_id ) : boolean
$session_id	string
return	boolean

示例#1

文件： Session_mongodb_driver.php 项目： ehoutsma/Codeigniter-Session-MongoDB-Driver

 protected function _get_lock($session_id)
 {
     return parent::_get_lock($session_id);
 }

示例#2

文件： Session_database_driver.php 项目： SkullaCode/skullaframe

 /**
  * Get lock
  *
  * Acquires a lock, depending on the underlying platform.
  *
  * @param	string	$session_id	Session ID
  * @return	bool
  */
 protected function _get_lock($session_id)
 {
     if ($this->_platform === 'mysql') {
         $arg = $session_id . ($this->_config['match_ip'] ? '_' . $_SERVER['REMOTE_ADDR'] : '');
         if ($this->_db->query("SELECT GET_LOCK('" . $arg . "', 300) AS ci_session_lock")->row()->ci_session_lock) {
             $this->_lock = $arg;
             return TRUE;
         }
         return FALSE;
     } elseif ($this->_platform === 'postgre') {
         $arg = "hashtext('" . $session_id . "')" . ($this->_config['match_ip'] ? ", hashtext('" . $_SERVER['REMOTE_ADDR'] . "')" : '');
         if ($this->_db->simple_query('SELECT pg_advisory_lock(' . $arg . ')')) {
             $this->_lock = $arg;
             return TRUE;
         }
         return FALSE;
     }
     return parent::_get_lock($session_id);
 }