[task/acm-refactor] Refactor the ACM classes to have a common interface.

They are now refered to as cache drivers rather than ACM classes. The additional utility functions from the original cache class have been moved to the cache_service. The class loader is now instantiated without a cache instance and passed one as soon as it is constructed to allow autoloading the cache classes. PHPBB3-9983
author: Igor Wiedler <igor@wiedler.ch> 2010-11-03 18:35:31 +0100
committer: Igor Wiedler <igor@wiedler.ch> 2011-01-09 23:49:35 +0100
commit: 9329b16ab13f3a4caf107df358c3c58bda2dcd8a (patch)
tree: 0b5faa7111c792565062c93b1c1a44eda50d4664 /phpBB/includes/acm
parent: 36e95f939db9b88b8519d956120d161102184ccb (diff)
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7 files changed, 0 insertions, 1777 deletions
diff --git a/phpBB/includes/acm/acm_apc.php b/phpBB/includes/acm/acm_apc.php
deleted file mode 100644
index ab00b43e60..0000000000
--- a/phpBB/includes/acm/acm_apc.php
+++ /dev/null
@@ -1,82 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-// Include the abstract base
-if (!class_exists('acm_memory'))
-{
-	require("{$phpbb_root_path}includes/acm/acm_memory.$phpEx");
-}
-
-/**
-* ACM for APC
-* @package acm
-*/
-class acm extends acm_memory
-{
-	var $extension = 'apc';
-
-	/**
-	* Purge cache data
-	*
-	* @return void
-	*/
-	function purge()
-	{
-		apc_clear_cache('user');
-
-		parent::purge();
-	}
-
-	/**
-	* Fetch an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return mixed Cached data
-	*/
-	function _read($var)
-	{
-		return apc_fetch($this->key_prefix . $var);
-	}
-
-	/**
-	* Store data in the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @param mixed $data Data to store
-	* @param int $ttl Time-to-live of cached data
-	* @return bool True if the operation succeeded
-	*/
-	function _write($var, $data, $ttl = 2592000)
-	{
-		return apc_store($this->key_prefix . $var, $data, $ttl);
-	}
-
-	/**
-	* Remove an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if the operation succeeded
-	*/
-	function _delete($var)
-	{
-		return apc_delete($this->key_prefix . $var);
-	}
-}
diff --git a/phpBB/includes/acm/acm_eaccelerator.php b/phpBB/includes/acm/acm_eaccelerator.php
deleted file mode 100644
index 7ae1557beb..0000000000
--- a/phpBB/includes/acm/acm_eaccelerator.php
+++ /dev/null
@@ -1,119 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-// Include the abstract base
-if (!class_exists('acm_memory'))
-{
-	require("{$phpbb_root_path}includes/acm/acm_memory.$phpEx");
-}
-
-/**
-* ACM for eAccelerator
-* @package acm
-* @todo Missing locks from destroy() talk with David
-*/
-class acm extends acm_memory
-{
-	var $extension = 'eaccelerator';
-	var $function = 'eaccelerator_get';
-
-	var $serialize_header = '#phpbb-serialized#';
-
-	/**
-	* Purge cache data
-	*
-	* @return void
-	*/
-	function purge()
-	{
-		foreach (eaccelerator_list_keys() as $var)
-		{
-			// @todo Check why the substr()
-			// @todo Only unset vars matching $this->key_prefix
-			eaccelerator_rm(substr($var['name'], 1));
-		}
-
-		parent::purge();
-	}
-
-	/**
-	 * Perform cache garbage collection
-	 *
-	 * @return void
-	 */
-	function tidy()
-	{
-		eaccelerator_gc();
-
-		set_config('cache_last_gc', time(), true);
-	}
-
-	/**
-	* Fetch an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return mixed Cached data
-	*/
-	function _read($var)
-	{
-		$result = eaccelerator_get($this->key_prefix . $var);
-
-		if ($result === null)
-		{
-			return false;
-		}
-
-		// Handle serialized objects
-		if (is_string($result) && strpos($result, $this->serialize_header . 'O:') === 0)
-		{
-			$result = unserialize(substr($result, strlen($this->serialize_header)));
-		}
-
-		return $result;
-	}
-
-	/**
-	* Store data in the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @param mixed $data Data to store
-	* @param int $ttl Time-to-live of cached data
-	* @return bool True if the operation succeeded
-	*/
-	function _write($var, $data, $ttl = 2592000)
-	{
-		// Serialize objects and make them easy to detect
-		$data = (is_object($data)) ? $this->serialize_header . serialize($data) : $data;
-
-		return eaccelerator_put($this->key_prefix . $var, $data, $ttl);
-	}
-
-	/**
-	* Remove an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if the operation succeeded
-	*/
-	function _delete($var)
-	{
-		return eaccelerator_rm($this->key_prefix . $var);
-	}
-}
diff --git a/phpBB/includes/acm/acm_file.php b/phpBB/includes/acm/acm_file.php
deleted file mode 100644
index 0e60cd6940..0000000000
--- a/phpBB/includes/acm/acm_file.php
+++ /dev/null
@@ -1,730 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-/**
-* ACM File Based Caching
-* @package acm
-*/
-class acm
-{
-	var $vars = array();
-	var $var_expires = array();
-	var $is_modified = false;
-
-	var $sql_rowset = array();
-	var $sql_row_pointer = array();
-	var $cache_dir = '';
-
-	/**
-	* Set cache path
-	*/
-	function acm()
-	{
-		global $phpbb_root_path;
-		$this->cache_dir = $phpbb_root_path . 'cache/';
-	}
-
-	/**
-	* Load global cache
-	*/
-	function load()
-	{
-		return $this->_read('data_global');
-	}
-
-	/**
-	* Unload cache object
-	*/
-	function unload()
-	{
-		$this->save();
-		unset($this->vars);
-		unset($this->var_expires);
-		unset($this->sql_rowset);
-		unset($this->sql_row_pointer);
-
-		$this->vars = array();
-		$this->var_expires = array();
-		$this->sql_rowset = array();
-		$this->sql_row_pointer = array();
-	}
-
-	/**
-	* Save modified objects
-	*/
-	function save()
-	{
-		if (!$this->is_modified)
-		{
-			return;
-		}
-
-		global $phpEx;
-
-		if (!$this->_write('data_global'))
-		{
-			if (!function_exists('phpbb_is_writable'))
-			{
-				global $phpbb_root_path;
-				include($phpbb_root_path . 'includes/functions.' . $phpEx);
-			}
-
-			// Now, this occurred how often? ... phew, just tell the user then...
-			if (!phpbb_is_writable($this->cache_dir))
-			{
-				// We need to use die() here, because else we may encounter an infinite loop (the message handler calls $cache->unload())
-				die($this->cache_dir . ' is NOT writable.');
-				exit;
-			}
-
-			die('Not able to open ' . $this->cache_dir . 'data_global.' . $phpEx);
-			exit;
-		}
-
-		$this->is_modified = false;
-	}
-
-	/**
-	* Tidy cache
-	*/
-	function tidy()
-	{
-		global $phpEx;
-
-		$dir = @opendir($this->cache_dir);
-
-		if (!$dir)
-		{
-			return;
-		}
-
-		$time = time();
-
-		while (($entry = readdir($dir)) !== false)
-		{
-			if (!preg_match('/^(sql_|data_(?!global))/', $entry))
-			{
-				continue;
-			}
-
-			if (!($handle = @fopen($this->cache_dir . $entry, 'rb')))
-			{
-				continue;
-			}
-
-			// Skip the PHP header
-			fgets($handle);
-
-			// Skip expiration
-			$expires = (int) fgets($handle);
-
-			fclose($handle);
-
-			if ($time >= $expires)
-			{
-				$this->remove_file($this->cache_dir . $entry);
-			}
-		}
-		closedir($dir);
-
-		if (file_exists($this->cache_dir . 'data_global.' . $phpEx))
-		{
-			if (!sizeof($this->vars))
-			{
-				$this->load();
-			}
-
-			foreach ($this->var_expires as $var_name => $expires)
-			{
-				if ($time >= $expires)
-				{
-					$this->destroy($var_name);
-				}
-			}
-		}
-
-		set_config('cache_last_gc', time(), true);
-	}
-
-	/**
-	* Get saved cache object
-	*/
-	function get($var_name)
-	{
-		if ($var_name[0] == '_')
-		{
-			global $phpEx;
-
-			if (!$this->_exists($var_name))
-			{
-				return false;
-			}
-
-			return $this->_read('data' . $var_name);
-		}
-		else
-		{
-			return ($this->_exists($var_name)) ? $this->vars[$var_name] : false;
-		}
-	}
-
-	/**
-	* Put data into cache
-	*/
-	function put($var_name, $var, $ttl = 31536000)
-	{
-		if ($var_name[0] == '_')
-		{
-			$this->_write('data' . $var_name, $var, time() + $ttl);
-		}
-		else
-		{
-			$this->vars[$var_name] = $var;
-			$this->var_expires[$var_name] = time() + $ttl;
-			$this->is_modified = true;
-		}
-	}
-
-	/**
-	* Purge cache data
-	*/
-	function purge()
-	{
-		// Purge all phpbb cache files
-		$dir = @opendir($this->cache_dir);
-
-		if (!$dir)
-		{
-			return;
-		}
-
-		while (($entry = readdir($dir)) !== false)
-		{
-			if (strpos($entry, 'sql_') !== 0 && strpos($entry, 'data_') !== 0 && strpos($entry, 'ctpl_') !== 0 && strpos($entry, 'tpl_') !== 0)
-			{
-				continue;
-			}
-
-			$this->remove_file($this->cache_dir . $entry);
-		}
-		closedir($dir);
-
-		unset($this->vars);
-		unset($this->var_expires);
-		unset($this->sql_rowset);
-		unset($this->sql_row_pointer);
-
-		$this->vars = array();
-		$this->var_expires = array();
-		$this->sql_rowset = array();
-		$this->sql_row_pointer = array();
-
-		$this->is_modified = false;
-	}
-
-	/**
-	* Destroy cache data
-	*/
-	function destroy($var_name, $table = '')
-	{
-		global $phpEx;
-
-		if ($var_name == 'sql' && !empty($table))
-		{
-			if (!is_array($table))
-			{
-				$table = array($table);
-			}
-
-			$dir = @opendir($this->cache_dir);
-
-			if (!$dir)
-			{
-				return;
-			}
-
-			while (($entry = readdir($dir)) !== false)
-			{
-				if (strpos($entry, 'sql_') !== 0)
-				{
-					continue;
-				}
-
-				if (!($handle = @fopen($this->cache_dir . $entry, 'rb')))
-				{
-					continue;
-				}
-
-				// Skip the PHP header
-				fgets($handle);
-
-				// Skip expiration
-				fgets($handle);
-
-				// Grab the query, remove the LF
-				$query = substr(fgets($handle), 0, -1);
-
-				fclose($handle);
-
-				foreach ($table as $check_table)
-				{
-					// Better catch partial table names than no table names. ;)
-					if (strpos($query, $check_table) !== false)
-					{
-						$this->remove_file($this->cache_dir . $entry);
-						break;
-					}
-				}
-			}
-			closedir($dir);
-
-			return;
-		}
-
-		if (!$this->_exists($var_name))
-		{
-			return;
-		}
-
-		if ($var_name[0] == '_')
-		{
-			$this->remove_file($this->cache_dir . 'data' . $var_name . ".$phpEx", true);
-		}
-		else if (isset($this->vars[$var_name]))
-		{
-			$this->is_modified = true;
-			unset($this->vars[$var_name]);
-			unset($this->var_expires[$var_name]);
-
-			// We save here to let the following cache hits succeed
-			$this->save();
-		}
-	}
-
-	/**
-	* Check if a given cache entry exist
-	*/
-	function _exists($var_name)
-	{
-		if ($var_name[0] == '_')
-		{
-			global $phpEx;
-			return file_exists($this->cache_dir . 'data' . $var_name . ".$phpEx");
-		}
-		else
-		{
-			if (!sizeof($this->vars))
-			{
-				$this->load();
-			}
-
-			if (!isset($this->var_expires[$var_name]))
-			{
-				return false;
-			}
-
-			return (time() > $this->var_expires[$var_name]) ? false : isset($this->vars[$var_name]);
-		}
-	}
-
-	/**
-	* Load cached sql query
-	*/
-	function sql_load($query)
-	{
-		// Remove extra spaces and tabs
-		$query = preg_replace('/[\n\r\s\t]+/', ' ', $query);
-
-		if (($rowset = $this->_read('sql_' . md5($query))) === false)
-		{
-			return false;
-		}
-
-		$query_id = sizeof($this->sql_rowset);
-		$this->sql_rowset[$query_id] = $rowset;
-		$this->sql_row_pointer[$query_id] = 0;
-
-		return $query_id;
-	}
-
-	/**
-	* Save sql query
-	*/
-	function sql_save($query, &$query_result, $ttl)
-	{
-		global $db;
-
-		// Remove extra spaces and tabs
-		$query = preg_replace('/[\n\r\s\t]+/', ' ', $query);
-
-		$query_id = sizeof($this->sql_rowset);
-		$this->sql_rowset[$query_id] = array();
-		$this->sql_row_pointer[$query_id] = 0;
-
-		while ($row = $db->sql_fetchrow($query_result))
-		{
-			$this->sql_rowset[$query_id][] = $row;
-		}
-		$db->sql_freeresult($query_result);
-
-		if ($this->_write('sql_' . md5($query), $this->sql_rowset[$query_id], $ttl + time(), $query))
-		{
-			$query_result = $query_id;
-		}
-	}
-
-	/**
-	* Ceck if a given sql query exist in cache
-	*/
-	function sql_exists($query_id)
-	{
-		return isset($this->sql_rowset[$query_id]);
-	}
-
-	/**
-	* Fetch row from cache (database)
-	*/
-	function sql_fetchrow($query_id)
-	{
-		if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))
-		{
-			return $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++];
-		}
-
-		return false;
-	}
-
-	/**
-	* Fetch a field from the current row of a cached database result (database)
-	*/
-	function sql_fetchfield($query_id, $field)
-	{
-		if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))
-		{
-			return (isset($this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]][$field])) ? $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++][$field] : false;
-		}
-
-		return false;
-	}
-
-	/**
-	* Seek a specific row in an a cached database result (database)
-	*/
-	function sql_rowseek($rownum, $query_id)
-	{
-		if ($rownum >= sizeof($this->sql_rowset[$query_id]))
-		{
-			return false;
-		}
-
-		$this->sql_row_pointer[$query_id] = $rownum;
-		return true;
-	}
-
-	/**
-	* Free memory used for a cached database result (database)
-	*/
-	function sql_freeresult($query_id)
-	{
-		if (!isset($this->sql_rowset[$query_id]))
-		{
-			return false;
-		}
-
-		unset($this->sql_rowset[$query_id]);
-		unset($this->sql_row_pointer[$query_id]);
-
-		return true;
-	}
-
-	/**
-	* Read cached data from a specified file
-	*
-	* @access private
-	* @param string $filename Filename to write
-	* @return mixed False if an error was encountered, otherwise the data type of the cached data
-	*/
-	function _read($filename)
-	{
-		global $phpEx;
-
-		$file = "{$this->cache_dir}$filename.$phpEx";
-
-		$type = substr($filename, 0, strpos($filename, '_'));
-
-		if (!file_exists($file))
-		{
-			return false;
-		}
-
-		if (!($handle = @fopen($file, 'rb')))
-		{
-			return false;
-		}
-
-		// Skip the PHP header
-		fgets($handle);
-
-		if ($filename == 'data_global')
-		{
-			$this->vars = $this->var_expires = array();
-
-			$time = time();
-
-			while (($expires = (int) fgets($handle)) && !feof($handle))
-			{
-				// Number of bytes of data
-				$bytes = substr(fgets($handle), 0, -1);
-
-				if (!is_numeric($bytes) || ($bytes = (int) $bytes) === 0)
-				{
-					// We cannot process the file without a valid number of bytes
-					// so we discard it
-					fclose($handle);
-
-					$this->vars = $this->var_expires = array();
-					$this->is_modified = false;
-
-					$this->remove_file($file);
-
-					return false;
-				}
-
-				if ($time >= $expires)
-				{
-					fseek($handle, $bytes, SEEK_CUR);
-
-					continue;
-				}
-
-				$var_name = substr(fgets($handle), 0, -1);
-
-				// Read the length of bytes that consists of data.
-				$data = fread($handle, $bytes - strlen($var_name));
-				$data = @unserialize($data);
-
-				// Don't use the data if it was invalid
-				if ($data !== false)
-				{
-					$this->vars[$var_name] = $data;
-					$this->var_expires[$var_name] = $expires;
-				}
-
-				// Absorb the LF
-				fgets($handle);
-			}
-
-			fclose($handle);
-
-			$this->is_modified = false;
-
-			return true;
-		}
-		else
-		{
-			$data = false;
-			$line = 0;
-
-			while (($buffer = fgets($handle)) && !feof($handle))
-			{
-				$buffer = substr($buffer, 0, -1); // Remove the LF
-
-				// $buffer is only used to read integers
-				// if it is non numeric we have an invalid
-				// cache file, which we will now remove.
-				if (!is_numeric($buffer))
-				{
-					break;
-				}
-
-				if ($line == 0)
-				{
-					$expires = (int) $buffer;
-
-					if (time() >= $expires)
-					{
-						break;
-					}
-
-					if ($type == 'sql')
-					{
-						// Skip the query
-						fgets($handle);
-					}
-				}
-				else if ($line == 1)
-				{
-					$bytes = (int) $buffer;
-
-					// Never should have 0 bytes
-					if (!$bytes)
-					{
-						break;
-					}
-
-					// Grab the serialized data
-					$data = fread($handle, $bytes);
-
-					// Read 1 byte, to trigger EOF
-					fread($handle, 1);
-
-					if (!feof($handle))
-					{
-						// Somebody tampered with our data
-						$data = false;
-					}
-					break;
-				}
-				else
-				{
-					// Something went wrong
-					break;
-				}
-				$line++;
-			}
-			fclose($handle);
-
-			// unserialize if we got some data
-			$data = ($data !== false) ? @unserialize($data) : $data;
-
-			if ($data === false)
-			{
-				$this->remove_file($file);
-				return false;
-			}
-
-			return $data;
-		}
-	}
-
-	/**
-	* Write cache data to a specified file
-	*
-	* 'data_global' is a special case and the generated format is different for this file:
-	* <code>
-	* <?php exit; ?>
-	* (expiration)
-	* (length of var and serialised data)
-	* (var)
-	* (serialised data)
-	* ... (repeat)
-	* </code>
-	*
-	* The other files have a similar format:
-	* <code>
-	* <?php exit; ?>
-	* (expiration)
-	* (query) [SQL files only]
-	* (length of serialised data)
-	* (serialised data)
-	* </code>
-	*
-	* @access private
-	* @param string $filename Filename to write
-	* @param mixed $data Data to store
-	* @param int $expires Timestamp when the data expires
-	* @param string $query Query when caching SQL queries
-	* @return bool True if the file was successfully created, otherwise false
-	*/
-	function _write($filename, $data = null, $expires = 0, $query = '')
-	{
-		global $phpEx;
-
-		$file = "{$this->cache_dir}$filename.$phpEx";
-
-		if ($handle = @fopen($file, 'wb'))
-		{
-			@flock($handle, LOCK_EX);
-
-			// File header
-			fwrite($handle, '<' . '?php exit; ?' . '>');
-
-			if ($filename == 'data_global')
-			{
-				// Global data is a different format
-				foreach ($this->vars as $var => $data)
-				{
-					if (strpos($var, "\r") !== false || strpos($var, "\n") !== false)
-					{
-						// CR/LF would cause fgets() to read the cache file incorrectly
-						// do not cache test entries, they probably won't be read back
-						// the cache keys should really be alphanumeric with a few symbols.
-						continue;
-					}
-					$data = serialize($data);
-
-					// Write out the expiration time
-					fwrite($handle, "\n" . $this->var_expires[$var] . "\n");
-
-					// Length of the remaining data for this var (ignoring two LF's)
-					fwrite($handle, strlen($data . $var) . "\n");
-					fwrite($handle, $var . "\n");
-					fwrite($handle, $data);
-				}
-			}
-			else
-			{
-				fwrite($handle, "\n" . $expires . "\n");
-
-				if (strpos($filename, 'sql_') === 0)
-				{
-					fwrite($handle, $query . "\n");
-				}
-				$data = serialize($data);
-
-				fwrite($handle, strlen($data) . "\n");
-				fwrite($handle, $data);
-			}
-
-			@flock($handle, LOCK_UN);
-			fclose($handle);
-
-			if (!function_exists('phpbb_chmod'))
-			{
-				global $phpbb_root_path;
-				include($phpbb_root_path . 'includes/functions.' . $phpEx);
-			}
-
-			phpbb_chmod($file, CHMOD_READ | CHMOD_WRITE);
-
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	* Removes/unlinks file
-	*/
-	function remove_file($filename, $check = false)
-	{
-		if (!function_exists('phpbb_is_writable'))
-		{
-			global $phpbb_root_path, $phpEx;
-			include($phpbb_root_path . 'includes/functions.' . $phpEx);
-		}
-
-		if ($check && !phpbb_is_writable($this->cache_dir))
-		{
-			// E_USER_ERROR - not using language entry - intended.
-			trigger_error('Unable to remove files within ' . $this->cache_dir . '. Please check directory permissions.', E_USER_ERROR);
-		}
-
-		return @unlink($filename);
-	}
-}
diff --git a/phpBB/includes/acm/acm_memcache.php b/phpBB/includes/acm/acm_memcache.php
deleted file mode 100644
index 527db71f80..0000000000
--- a/phpBB/includes/acm/acm_memcache.php
+++ /dev/null
@@ -1,136 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-// Include the abstract base
-if (!class_exists('acm_memory'))
-{
-	require("{$phpbb_root_path}includes/acm/acm_memory.$phpEx");
-}
-
-if (!defined('PHPBB_ACM_MEMCACHE_PORT'))
-{
-	define('PHPBB_ACM_MEMCACHE_PORT', 11211);
-}
-
-if (!defined('PHPBB_ACM_MEMCACHE_COMPRESS'))
-{
-	define('PHPBB_ACM_MEMCACHE_COMPRESS', false);
-}
-
-if (!defined('PHPBB_ACM_MEMCACHE_HOST'))
-{
-	define('PHPBB_ACM_MEMCACHE_HOST', 'localhost');
-}
-
-if (!defined('PHPBB_ACM_MEMCACHE'))
-{
-	//can define multiple servers with host1/port1,host2/port2 format
-	define('PHPBB_ACM_MEMCACHE', PHPBB_ACM_MEMCACHE_HOST . '/' . PHPBB_ACM_MEMCACHE_PORT);
-}
-
-/**
-* ACM for Memcached
-* @package acm
-*/
-class acm extends acm_memory
-{
-	var $extension = 'memcache';
-
-	var $memcache;
-	var $flags = 0;
-
-	function acm()
-	{
-		// Call the parent constructor
-		parent::acm_memory();
-
-		$this->memcache = new Memcache;
-		foreach(explode(',', PHPBB_ACM_MEMCACHE) as $u)
-		{
-			$parts = explode('/', $u);
-			$this->memcache->addServer(trim($parts[0]), trim($parts[1]));
-		}
-		$this->flags = (PHPBB_ACM_MEMCACHE_COMPRESS) ? MEMCACHE_COMPRESSED : 0;
-	}
-
-	/**
-	* Unload the cache resources
-	*
-	* @return void
-	*/
-	function unload()
-	{
-		parent::unload();
-
-		$this->memcache->close();
-	}
-
-	/**
-	* Purge cache data
-	*
-	* @return void
-	*/
-	function purge()
-	{
-		$this->memcache->flush();
-
-		parent::purge();
-	}
-
-	/**
-	* Fetch an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return mixed Cached data
-	*/
-	function _read($var)
-	{
-		return $this->memcache->get($this->key_prefix . $var);
-	}
-
-	/**
-	* Store data in the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @param mixed $data Data to store
-	* @param int $ttl Time-to-live of cached data
-	* @return bool True if the operation succeeded
-	*/
-	function _write($var, $data, $ttl = 2592000)
-	{
-		if (!$this->memcache->replace($this->key_prefix . $var, $data, $this->flags, $ttl))
-		{
-			return $this->memcache->set($this->key_prefix . $var, $data, $this->flags, $ttl);
-		}
-		return true;
-	}
-
-	/**
-	* Remove an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if the operation succeeded
-	*/
-	function _delete($var)
-	{
-		return $this->memcache->delete($this->key_prefix . $var);
-	}
-}
diff --git a/phpBB/includes/acm/acm_memory.php b/phpBB/includes/acm/acm_memory.php
deleted file mode 100644
index d248487846..0000000000
--- a/phpBB/includes/acm/acm_memory.php
+++ /dev/null
@@ -1,437 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-/**
-* ACM Abstract Memory Class
-* @package acm
-*/
-class acm_memory
-{
-	var $key_prefix;
-
-	var $vars = array();
-	var $is_modified = false;
-
-	var $sql_rowset = array();
-	var $sql_row_pointer = array();
-	var $cache_dir = '';
-
-	/**
-	* Set cache path
-	*/
-	function acm_memory()
-	{
-		global $phpbb_root_path, $dbname, $table_prefix;
-
-		$this->cache_dir	= $phpbb_root_path . 'cache/';
-		$this->key_prefix	= substr(md5($dbname . $table_prefix), 0, 8) . '_';
-
-		if (!isset($this->extension) || !extension_loaded($this->extension))
-		{
-			global $acm_type;
-
-			trigger_error("Could not find required extension [{$this->extension}] for the ACM module $acm_type.", E_USER_ERROR);
-		}
-
-		if (isset($this->function) && !function_exists($this->function))
-		{
-			global $acm_type;
-
-			trigger_error("The required function [{$this->function}] is not available for the ACM module $acm_type.", E_USER_ERROR);
-		}
-	}
-
-	/**
-	* Load global cache
-	*/
-	function load()
-	{
-		// grab the global cache
-		$this->vars = $this->_read('global');
-
-		if ($this->vars !== false)
-		{
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	* Unload cache object
-	*/
-	function unload()
-	{
-		$this->save();
-		unset($this->vars);
-		unset($this->sql_rowset);
-		unset($this->sql_row_pointer);
-
-		$this->vars = array();
-		$this->sql_rowset = array();
-		$this->sql_row_pointer = array();
-	}
-
-	/**
-	* Save modified objects
-	*/
-	function save()
-	{
-		if (!$this->is_modified)
-		{
-			return;
-		}
-
-		$this->_write('global', $this->vars, 2592000);
-
-		$this->is_modified = false;
-	}
-
-	/**
-	* Tidy cache
-	*/
-	function tidy()
-	{
-		// cache has auto GC, no need to have any code here :)
-
-		set_config('cache_last_gc', time(), true);
-	}
-
-	/**
-	* Get saved cache object
-	*/
-	function get($var_name)
-	{
-		if ($var_name[0] == '_')
-		{
-			if (!$this->_exists($var_name))
-			{
-				return false;
-			}
-
-			return $this->_read($var_name);
-		}
-		else
-		{
-			return ($this->_exists($var_name)) ? $this->vars[$var_name] : false;
-		}
-	}
-
-	/**
-	* Put data into cache
-	*/
-	function put($var_name, $var, $ttl = 2592000)
-	{
-		if ($var_name[0] == '_')
-		{
-			$this->_write($var_name, $var, $ttl);
-		}
-		else
-		{
-			$this->vars[$var_name] = $var;
-			$this->is_modified = true;
-		}
-	}
-
-	/**
-	* Purge cache data
-	*/
-	function purge()
-	{
-		// Purge all phpbb cache files
-		$dir = @opendir($this->cache_dir);
-
-		if (!$dir)
-		{
-			return;
-		}
-
-		while (($entry = readdir($dir)) !== false)
-		{
-			if (strpos($entry, 'sql_') !== 0 && strpos($entry, 'data_') !== 0 && strpos($entry, 'ctpl_') !== 0 && strpos($entry, 'tpl_') !== 0)
-			{
-				continue;
-			}
-
-			$this->remove_file($this->cache_dir . $entry);
-		}
-		closedir($dir);
-
-		unset($this->vars);
-		unset($this->sql_rowset);
-		unset($this->sql_row_pointer);
-
-		$this->vars = array();
-		$this->sql_rowset = array();
-		$this->sql_row_pointer = array();
-
-		$this->is_modified = false;
-	}
-
-
-	/**
-	* Destroy cache data
-	*/
-	function destroy($var_name, $table = '')
-	{
-		if ($var_name == 'sql' && !empty($table))
-		{
-			if (!is_array($table))
-			{
-				$table = array($table);
-			}
-
-			foreach ($table as $table_name)
-			{
-				// gives us the md5s that we want
-				$temp = $this->_read('sql_' . $table_name);
-
-				if ($temp === false)
-				{
-					continue;
-				}
-
-				// delete each query ref
-				foreach ($temp as $md5_id => $void)
-				{
-					$this->_delete('sql_' . $md5_id);
-				}
-
-				// delete the table ref
-				$this->_delete('sql_' . $table_name);
-			}
-
-			return;
-		}
-
-		if (!$this->_exists($var_name))
-		{
-			return;
-		}
-
-		if ($var_name[0] == '_')
-		{
-			$this->_delete($var_name);
-		}
-		else if (isset($this->vars[$var_name]))
-		{
-			$this->is_modified = true;
-			unset($this->vars[$var_name]);
-
-			// We save here to let the following cache hits succeed
-			$this->save();
-		}
-	}
-
-	/**
-	* Check if a given cache entry exist
-	*/
-	function _exists($var_name)
-	{
-		if ($var_name[0] == '_')
-		{
-			return $this->_isset($var_name);
-		}
-		else
-		{
-			if (!sizeof($this->vars))
-			{
-				$this->load();
-			}
-
-			return isset($this->vars[$var_name]);
-		}
-	}
-
-	/**
-	* Load cached sql query
-	*/
-	function sql_load($query)
-	{
-		// Remove extra spaces and tabs
-		$query = preg_replace('/[\n\r\s\t]+/', ' ', $query);
-		$query_id = sizeof($this->sql_rowset);
-
-		if (($result = $this->_read('sql_' . md5($query))) === false)
-		{
-			return false;
-		}
-
-		$this->sql_rowset[$query_id] = $result;
-		$this->sql_row_pointer[$query_id] = 0;
-
-		return $query_id;
-	}
-
-	/**
-	* Save sql query
-	*/
-	function sql_save($query, &$query_result, $ttl)
-	{
-		global $db;
-
-		// Remove extra spaces and tabs
-		$query = preg_replace('/[\n\r\s\t]+/', ' ', $query);
-		$hash = md5($query);
-
-		// determine which tables this query belongs to
-		// Some queries use backticks, namely the get_database_size() query
-		// don't check for conformity, the SQL would error and not reach here.
-		if (!preg_match('/FROM \\(?(`?\\w+`?(?: \\w+)?(?:, ?`?\\w+`?(?: \\w+)?)*)\\)?/', $query, $regs))
-		{
-			// Bail out if the match fails.
-			return;
-		}
-		$tables = array_map('trim', explode(',', $regs[1]));
-
-		foreach ($tables as $table_name)
-		{
-			// Remove backticks
-			$table_name = ($table_name[0] == '`') ? substr($table_name, 1, -1) : $table_name;
-
-			if (($pos = strpos($table_name, ' ')) !== false)
-			{
-				$table_name = substr($table_name, 0, $pos);
-			}
-
-			$temp = $this->_read('sql_' . $table_name);
-
-			if ($temp === false)
-			{
-				$temp = array();
-			}
-
-			$temp[$hash] = true;
-
-			// This must never expire
-			$this->_write('sql_' . $table_name, $temp, 0);
-		}
-
-		// store them in the right place
-		$query_id = sizeof($this->sql_rowset);
-		$this->sql_rowset[$query_id] = array();
-		$this->sql_row_pointer[$query_id] = 0;
-
-		while ($row = $db->sql_fetchrow($query_result))
-		{
-			$this->sql_rowset[$query_id][] = $row;
-		}
-		$db->sql_freeresult($query_result);
-
-		$this->_write('sql_' . $hash, $this->sql_rowset[$query_id], $ttl);
-
-		$query_result = $query_id;
-	}
-
-	/**
-	* Ceck if a given sql query exist in cache
-	*/
-	function sql_exists($query_id)
-	{
-		return isset($this->sql_rowset[$query_id]);
-	}
-
-	/**
-	* Fetch row from cache (database)
-	*/
-	function sql_fetchrow($query_id)
-	{
-		if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))
-		{
-			return $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++];
-		}
-
-		return false;
-	}
-
-	/**
-	* Fetch a field from the current row of a cached database result (database)
-	*/
-	function sql_fetchfield($query_id, $field)
-	{
-		if ($this->sql_row_pointer[$query_id] < sizeof($this->sql_rowset[$query_id]))
-		{
-			return (isset($this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]][$field])) ? $this->sql_rowset[$query_id][$this->sql_row_pointer[$query_id]++][$field] : false;
-		}
-
-		return false;
-	}
-
-	/**
-	* Seek a specific row in an a cached database result (database)
-	*/
-	function sql_rowseek($rownum, $query_id)
-	{
-		if ($rownum >= sizeof($this->sql_rowset[$query_id]))
-		{
-			return false;
-		}
-
-		$this->sql_row_pointer[$query_id] = $rownum;
-		return true;
-	}
-
-	/**
-	* Free memory used for a cached database result (database)
-	*/
-	function sql_freeresult($query_id)
-	{
-		if (!isset($this->sql_rowset[$query_id]))
-		{
-			return false;
-		}
-
-		unset($this->sql_rowset[$query_id]);
-		unset($this->sql_row_pointer[$query_id]);
-
-		return true;
-	}
-
-	/**
-	* Removes/unlinks file
-	*/
-	function remove_file($filename, $check = false)
-	{
-		if (!function_exists('phpbb_is_writable'))
-		{
-			global $phpbb_root_path, $phpEx;
-			include($phpbb_root_path . 'includes/functions.' . $phpEx);
-		}
-
-		if ($check && !phpbb_is_writable($this->cache_dir))
-		{
-			// E_USER_ERROR - not using language entry - intended.
-			trigger_error('Unable to remove files within ' . $this->cache_dir . '. Please check directory permissions.', E_USER_ERROR);
-		}
-
-		return @unlink($filename);
-	}
-
-	/**
-	* Check if a cache var exists
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if it exists, otherwise false
-	*/
-	function _isset($var)
-	{
-		// Most caches don't need to check
-		return true;
-	}
-}
diff --git a/phpBB/includes/acm/acm_null.php b/phpBB/includes/acm/acm_null.php
deleted file mode 100644
index 79f2b59c0f..0000000000
--- a/phpBB/includes/acm/acm_null.php
+++ /dev/null
@@ -1,154 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-/**
-* ACM Null Caching
-* @package acm
-*/
-class acm
-{
-	/**
-	* Set cache path
-	*/
-	function acm()
-	{
-	}
-
-	/**
-	* Load global cache
-	*/
-	function load()
-	{
-		return true;
-	}
-
-	/**
-	* Unload cache object
-	*/
-	function unload()
-	{
-	}
-
-	/**
-	* Save modified objects
-	*/
-	function save()
-	{
-	}
-
-	/**
-	* Tidy cache
-	*/
-	function tidy()
-	{
-		// This cache always has a tidy room.
-		set_config('cache_last_gc', time(), true);
-	}
-
-	/**
-	* Get saved cache object
-	*/
-	function get($var_name)
-	{
-		return false;
-	}
-
-	/**
-	* Put data into cache
-	*/
-	function put($var_name, $var, $ttl = 0)
-	{
-	}
-
-	/**
-	* Purge cache data
-	*/
-	function purge()
-	{
-	}
-
-	/**
-	* Destroy cache data
-	*/
-	function destroy($var_name, $table = '')
-	{
-	}
-
-	/**
-	* Check if a given cache entry exist
-	*/
-	function _exists($var_name)
-	{
-		return false;
-	}
-
-	/**
-	* Load cached sql query
-	*/
-	function sql_load($query)
-	{
-		return false;
-	}
-
-	/**
-	* Save sql query
-	*/
-	function sql_save($query, &$query_result, $ttl)
-	{
-	}
-
-	/**
-	* Ceck if a given sql query exist in cache
-	*/
-	function sql_exists($query_id)
-	{
-		return false;
-	}
-
-	/**
-	* Fetch row from cache (database)
-	*/
-	function sql_fetchrow($query_id)
-	{
-		return false;
-	}
-
-	/**
-	* Fetch a field from the current row of a cached database result (database)
-	*/
-	function sql_fetchfield($query_id, $field)
-	{
-		return false;
-	}
-
-	/**
-	* Seek a specific row in an a cached database result (database)
-	*/
-	function sql_rowseek($rownum, $query_id)
-	{
-		return false;
-	}
-
-	/**
-	* Free memory used for a cached database result (database)
-	*/
-	function sql_freeresult($query_id)
-	{
-		return false;
-	}
-}
diff --git a/phpBB/includes/acm/acm_xcache.php b/phpBB/includes/acm/acm_xcache.php
deleted file mode 100644
index 8be0ad0c48..0000000000
--- a/phpBB/includes/acm/acm_xcache.php
+++ /dev/null
@@ -1,119 +0,0 @@
-<?php
-/**
-*
-* @package acm
-* @version $Id$
-* @copyright (c) 2005, 2009 phpBB Group
-* @license http://opensource.org/licenses/gpl-license.php GNU Public License
-*
-*/
-
-/**
-* @ignore
-*/
-if (!defined('IN_PHPBB'))
-{
-	exit;
-}
-
-// Include the abstract base
-if (!class_exists('acm_memory'))
-{
-	require("{$phpbb_root_path}includes/acm/acm_memory.$phpEx");
-}
-
-/**
-* ACM for XCache
-* @package acm
-*
-* To use this module you need ini_get() enabled and the following INI settings configured as follows:
-* - xcache.var_size > 0
-* - xcache.admin.enable_auth = off (or xcache.admin.user and xcache.admin.password set)
-*
-*/
-class acm extends acm_memory
-{
-	var $extension = 'XCache';
-
-	function acm()
-	{
-		parent::acm_memory();
-
-		if (!function_exists('ini_get') || (int) ini_get('xcache.var_size') <= 0)
-		{
-			trigger_error('Increase xcache.var_size setting above 0 or enable ini_get() to use this ACM module.', E_USER_ERROR);
-		}
-	}
-
-	/**
-	* Purge cache data
-	*
-	* @return void
-	*/
-	function purge()
-	{
-		// Run before for XCache, if admin functions are disabled it will terminate execution
-		parent::purge();
-
-		// If the admin authentication is enabled but not set up, this will cause a nasty error.
-		// Not much we can do about it though.
-		$n = xcache_count(XC_TYPE_VAR);
-
-		for ($i = 0; $i < $n; $i++)
-		{
-			xcache_clear_cache(XC_TYPE_VAR, $i);
-		}
-	}
-
-	/**
-	* Fetch an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return mixed Cached data
-	*/
-	function _read($var)
-	{
-		$result = xcache_get($this->key_prefix . $var);
-
-		return ($result !== null) ? $result : false;
-	}
-
-	/**
-	* Store data in the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @param mixed $data Data to store
-	* @param int $ttl Time-to-live of cached data
-	* @return bool True if the operation succeeded
-	*/
-	function _write($var, $data, $ttl = 2592000)
-	{
-		return xcache_set($this->key_prefix . $var, $data, $ttl);
-	}
-
-	/**
-	* Remove an item from the cache
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if the operation succeeded
-	*/
-	function _delete($var)
-	{
-		return xcache_unset($this->key_prefix . $var);
-	}
-
-	/**
-	* Check if a cache var exists
-	*
-	* @access protected
-	* @param string $var Cache key
-	* @return bool True if it exists, otherwise false
-	*/	
-	function _isset($var)
-	{
-		return xcache_isset($this->key_prefix . $var);
-	}
-}
author	Igor Wiedler <igor@wiedler.ch>	2010-11-03 18:35:31 +0100
committer	Igor Wiedler <igor@wiedler.ch>	2011-01-09 23:49:35 +0100
commit	9329b16ab13f3a4caf107df358c3c58bda2dcd8a (patch)
tree	0b5faa7111c792565062c93b1c1a44eda50d4664 /phpBB/includes/acm
parent	36e95f939db9b88b8519d956120d161102184ccb (diff)
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