1 files changed, 0 insertions, 149 deletions
diff --git a/phpBB/includes/lock/db.php b/phpBB/includes/lock/db.php
deleted file mode 100644
index 5cc0821aa0..0000000000
--- a/phpBB/includes/lock/db.php
+++ /dev/null
@@ -1,149 +0,0 @@
-<?php
-/**
-*
-* @package phpBB3
-* @copyright (c) 2010 phpBB Group
-* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-/**
-* Database locking class
-* @package phpBB3
-*/
-class phpbb_lock_db
-{
-	/**
-	* Name of the config variable this lock uses
-	* @var string
-	*/
-	private $config_name;
-
-	/**
-	* Unique identifier for this lock.
-	*
-	* @var string
-	*/
-	private $unique_id;
-
-	/**
-	* Stores the state of this lock
-	* @var bool
-	*/
-	private $locked;
-
-	/**
-	* The phpBB configuration
-	* @var phpbb_config
-	*/
-	private $config;
-
-	/**
-	* A database connection
-	* @var phpbb_db_driver
-	*/
-	private $db;
-
-	/**
-	* Creates a named released instance of the lock.
-	*
-	* You have to call acquire() to actually create the lock.
-	*
-	* @param	string	$config_name	A config variable to be used for locking
-	* @param	array	$config			The phpBB configuration
-	* @param	phpbb_db_driver	$db				A database connection
-	*/
-	public function __construct($config_name, phpbb_config $config, phpbb_db_driver $db)
-	{
-		$this->config_name = $config_name;
-		$this->config = $config;
-		$this->db = $db;
-	}
-
-	/**
-	* Tries to acquire the lock by updating
-	* the configuration variable in the database.
-	*
-	* As a lock may only be held by one process at a time, lock
-	* acquisition may fail if another process is holding the lock
-	* or if another process obtained the lock but never released it.
-	* Locks are forcibly released after a timeout of 1 hour.
-	*
-	* @return	bool			true if lock was acquired
-	*							false otherwise
-	*/
-	public function acquire()
-	{
-		if ($this->locked)
-		{
-			return false;
-		}
-
-		if (!isset($this->config[$this->config_name]))
-		{
-			$this->config->set($this->config_name, '0', false);
-		}
-		$lock_value = $this->config[$this->config_name];
-
-		// make sure lock cannot be acquired by multiple processes
-		if ($lock_value)
-		{
-			// if the other process is running more than an hour already we have to assume it
-			// aborted without cleaning the lock
-			$time = explode(' ', $lock_value);
-			$time = $time[0];
-
-			if ($time + 3600 >= time())
-			{
-				return false;
-			}
-		}
-
-		$this->unique_id = time() . ' ' . unique_id();
-
-		// try to update the config value, if it was already modified by another
-		// process we failed to acquire the lock.
-		$this->locked = $this->config->set_atomic($this->config_name, $lock_value, $this->unique_id, false);
-
-		return $this->locked;
-	}
-
-	/**
-	* Does this process own the lock?
-	*
-	* @return	bool			true if lock is owned
-	*							false otherwise
-	*/
-	public function owns_lock()
-	{
-		return (bool) $this->locked;
-	}
-
-	/**
-	* Releases the lock.
-	*
-	* The lock must have been previously obtained, that is, acquire() call
-	* was issued and returned true.
-	*
-	* Note: Attempting to release a lock that is already released,
-	* that is, calling release() multiple times, is harmless.
-	*
-	* @return null
-	*/
-	public function release()
-	{
-		if ($this->locked)
-		{
-			$this->config->set_atomic($this->config_name, $this->unique_id, '0', false);
-			$this->locked = false;
-		}
-	}
-}