mirror of
https://github.com/phpbb/phpbb.git
synced 2025-08-18 22:41:28 +02:00
[ticket/11698] Moving all autoloadable files to phpbb/
PHPBB3-11698
This commit is contained in:
Nils Adermann
149
phpBB/phpbb/lock/db.php
Normal file
149
phpBB/phpbb/lock/db.php
Normal file
@@ -0,0 +1,149 @@
|
||||
<?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;
|
||||
}
|
||||
}
|
||||
}
|
||||
144
phpBB/phpbb/lock/flock.php
Normal file
144
phpBB/phpbb/lock/flock.php
Normal file
@@ -0,0 +1,144 @@
|
||||
<?php
|
||||
/**
|
||||
*
|
||||
* @package phpBB3
|
||||
* @copyright (c) 2012 phpBB Group
|
||||
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
|
||||
*
|
||||
*/
|
||||
|
||||
/**
|
||||
* @ignore
|
||||
*/
|
||||
if (!defined('IN_PHPBB'))
|
||||
{
|
||||
exit;
|
||||
}
|
||||
|
||||
/**
|
||||
* File locking class
|
||||
* @package phpBB3
|
||||
*/
|
||||
class phpbb_lock_flock
|
||||
{
|
||||
/**
|
||||
* Path to the file to which access is controlled
|
||||
*
|
||||
* @var string
|
||||
*/
|
||||
private $path;
|
||||
|
||||
/**
|
||||
* File pointer for the lock file
|
||||
* @var string
|
||||
*/
|
||||
private $lock_fp;
|
||||
|
||||
/**
|
||||
* Constructor.
|
||||
*
|
||||
* You have to call acquire() to actually acquire the lock.
|
||||
*
|
||||
* @param string $path Path to the file to which access is controlled
|
||||
*/
|
||||
public function __construct($path)
|
||||
{
|
||||
$this->path = $path;
|
||||
$this->lock_fp = null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Tries to acquire the lock.
|
||||
*
|
||||
* If the lock is already held by another process, this call will block
|
||||
* until the other process releases the lock. If a lock is acquired and
|
||||
* is not released before script finishes but the process continues to
|
||||
* live (apache/fastcgi) then subsequent processes trying to acquire
|
||||
* the same lock will be blocked forever.
|
||||
*
|
||||
* If the lock is already held by the same process via another instance
|
||||
* of this class, this call will block forever.
|
||||
*
|
||||
* If flock function is disabled in php or fails to work, lock
|
||||
* acquisition will fail and false will be returned.
|
||||
*
|
||||
* @return bool true if lock was acquired
|
||||
* false otherwise
|
||||
*/
|
||||
public function acquire()
|
||||
{
|
||||
if ($this->lock_fp)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
// For systems that can't have two processes opening
|
||||
// one file for writing simultaneously
|
||||
if (file_exists($this->path . '.lock'))
|
||||
{
|
||||
$mode = 'rb';
|
||||
}
|
||||
else
|
||||
{
|
||||
$mode = 'wb';
|
||||
}
|
||||
|
||||
$this->lock_fp = @fopen($this->path . '.lock', $mode);
|
||||
|
||||
if ($mode == 'wb')
|
||||
{
|
||||
if (!$this->lock_fp)
|
||||
{
|
||||
// Two processes may attempt to create lock file at the same time.
|
||||
// Have the losing process try opening the lock file again for reading
|
||||
// on the assumption that the winning process created it
|
||||
$mode = 'rb';
|
||||
$this->lock_fp = @fopen($this->path . '.lock', $mode);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Only need to set mode when the lock file is written
|
||||
@chmod($this->path . '.lock', 0666);
|
||||
}
|
||||
}
|
||||
|
||||
if ($this->lock_fp)
|
||||
{
|
||||
@flock($this->lock_fp, LOCK_EX);
|
||||
}
|
||||
|
||||
return (bool) $this->lock_fp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Does this process own the lock?
|
||||
*
|
||||
* @return bool true if lock is owned
|
||||
* false otherwise
|
||||
*/
|
||||
public function owns_lock()
|
||||
{
|
||||
return (bool) $this->lock_fp;
|
||||
}
|
||||
|
||||
/**
|
||||
* Releases the lock.
|
||||
*
|
||||
* The lock must have been previously obtained, that is, acquire() call
|
||||
* was issued and returned true.
|
||||
*
|
||||
* Note: Attempting to release a lock that is already released,
|
||||
* that is, calling release() multiple times, is harmless.
|
||||
*
|
||||
* @return null
|
||||
*/
|
||||
public function release()
|
||||
{
|
||||
if ($this->lock_fp)
|
||||
{
|
||||
@flock($this->lock_fp, LOCK_UN);
|
||||
fclose($this->lock_fp);
|
||||
$this->lock_fp = null;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user