-<?php

-/**

-*

-* @package acm

-* @version $Id$

-* @copyright (c) 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 $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- /**

- * Set cache path

- */

- function acm()

- {

- $this->cache_dir = $phpbb_root_path . 'cache/';

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- // grab the global cache

- $this->vars = apc_fetch('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;

- }

-

- apc_store('global', $this->vars, 31536000);

-

- $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 apc_fetch($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] == '_')

- {

- apc_store($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);

-

- apc_clear_cache('user');

-

- 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 = apc_fetch('sql_' . $table_name);

-

- if ($temp === false)

- {

- continue;

- }

-

- // delete each query ref

- foreach ($temp as $md5_id => $void)

- {

- apc_delete('sql_' . $md5_id);

- }

-

- // delete the table ref

- apc_delete('sql_' . $table_name);

- }

-

- return;

- }

-

- if (!$this->_exists($var_name))

- {

- return;

- }

-

- if ($var_name[0] == '_')

- {

- apc_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 true;

- }

- 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);

-

- $temp = apc_fetch('sql_' . md5($query));

-

- if ($temp === false)

- {

- return false;

- }

-

- $this->sql_rowset[$query_id] = $temp;

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * Save sql query

- */

- function sql_save($query, &$query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- // determine which tables this query belongs to

- preg_match('/FROM \\(?(\\w+(?: \\w+)?(?:, ?\\w+(?: \\w+)?)*)\\)?/', $query, $regs);

- $tables = array_map('trim', explode(',', $regs[1]));

-

- foreach ($tables as $table_name)

- {

- if (($pos = strpos($table_name, ' ')) !== false)

- {

- $table_name = substr($table_name, 0, $pos);

- }

-

- $temp = apc_fetch('sql_' . $table_name);

- if ($temp === false)

- {

- $temp = array();

- }

- $temp[md5($query)] = true;

- apc_store('sql_' . $table_name, $temp, $ttl);

- }

-

- // 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 ($row = phpbb::$db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- phpbb::$db->sql_freeresult($query_result);

-

- apc_store('sql_' . md5($query), $this->sql_rowset[$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 ($check && !@is_writable($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);

- }

-}

-

-?> \ No newline at end of file

-<?php

-/**

-*

-* @package acm

-* @version $Id$

-* @copyright (c) 2005 phpBB Group

-* @license http://opensource.org/licenses/gpl-license.php GNU Public License

-*

-*/

-

-/**

-* ACM Memcache Based Caching

-* @package acm

-*/

-class acm

-{

- var $vars = array();

- var $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- /**

- * Set cache path

- */

- function acm()

- {

- $this->cache_dir = $phpbb_root_path . 'cache/';

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- // grab the global cache

- $temp = eaccelerator_get('global');

-

- if ($temp !== null)

- {

- $this->vars = $temp;

- }

- else

- {

- return false;

- }

-

- return true;

- }

-

- /**

- * Unload cache object

- */

- function unload()

- {

- $this->save();

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

- }

-

- /**

- * Save modified objects

- */

- function save()

- {

- if (!$this->is_modified)

- {

- return;

- }

-

- eaccelerator_put('global', $this->vars, 31536000);

-

- $this->is_modified = false;

- }

-

- /**

- * Tidy cache

- */

- function tidy()

- {

- eaccelerator_gc();

-

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Get saved cache object

- */

- function get($var_name)

- {

- if ($var_name[0] == '_')

- {

- $temp = eaccelerator_get($var_name);

-

- if ($temp !== null)

- {

- return $temp;

- }

- else

- {

- return false;

- }

- }

- else

- {

- if (!sizeof($this->vars))

- {

- $this->load();

- }

- return (isset($this->vars[$var_name])) ? $this->vars[$var_name] : false;

- }

- }

-

- /**

- * Put data into cache

- */

- function put($var_name, $var, $ttl = 31536000)

- {

- if ($var_name[0] == '_')

- {

- eaccelerator_put($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;

- }

-

- @unlink($this->cache_dir . $entry);

- }

- closedir($dir);

-

- foreach (eaccelerator_list_keys() as $var)

- {

- eaccelerator_rm(substr($var['name'], 1));

- }

-

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $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

- eaccelerator_lock('sql_' . $table_name);

- $temp = eaccelerator_get('sql_' . $table_name);

- if ($temp === null)

- {

- continue;

- }

-

- // delete each query ref

- foreach ($temp as $md5_id => $void)

- {

- eaccelerator_lock('sql_' . $md5_id);

- eaccelerator_rm('sql_' . $md5_id);

- eaccelerator_unlock('sql_' . $md5_id);

- }

-

- // delete the table ref

- eaccelerator_rm('sql_' . $table_name);

- eaccelerator_unlock('sql_' . $table_name);

- }

-

- return;

- }

-

- if ($var_name[0] == '_')

- {

- eaccelerator_rm($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();

- }

- }

-

- /**

- * 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);

-

- $temp = eaccelerator_get('sql_' . md5($query));

-

- if ($temp === null)

- {

- return false;

- }

-

- $this->sql_rowset[$query_id] = $temp;

-

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * Save sql query

- */

- function sql_save($query, &$query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- // determine which tables this query belongs to

- preg_match('/FROM \\(?(\\w+(?: \\w+)?(?:, ?\\w+(?: \\w+)?)*)\\)?/', $query, $regs);

- $tables = array_map('trim', explode(',', $regs[1]));

-

- foreach ($tables as $table_name)

- {

- if (($pos = strpos($table_name, ' ')) !== false)

- {

- $table_name = substr($table_name, 0, $pos);

- }

-

- $temp = eaccelerator_get('sql_' . $table_name);

- if ($temp === null)

- {

- $temp = array();

- }

- $temp[md5($query)] = true;

- eaccelerator_put('sql_' . $table_name, $temp, $ttl);

- }

-

- // 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 ($row = phpbb::$db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- phpbb::$db->sql_freeresult($query_result);

-

- eaccelerator_put('sql_' . md5($query), $this->sql_rowset[$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;

- }

-}

-

-?> \ No newline at end of file

-<?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;

-}

-

-/**

-* Define file-based cache.

-* @package acm

-*/

-class phpbb_acm_file extends phpbb_acm_abstract

-{

- /**

- * @var string The cache directory to use

- */

- public $cache_dir = '';

-

- /**

- * @var array|bool The cache types this class supports. True indicates support for all types.

- */

- public $supported = true;

-

- /**

- * Set cache directory

- *

- * @param string $cache_prefix The cache prefix the instance is responsible for

- * @access public

- */

- public function __construct($cache_prefix)

- {

- $this->cache_dir = PHPBB_ROOT_PATH . 'cache/';

- $this->cache_prefix = $cache_prefix;

- }

-

- /**

- * {@link phpbb_acm_abstract::get() get()}

- */

- public function get($var_name)

- {

- if ($var_name[0] === '#')

- {

- $var_name = substr($var_name, 1);

- return $this->get_global($var_name);

- }

-

- if (!$this->exists($var_name))

- {

- return false;

- }

-

- @include($this->cache_dir . $this->cache_prefix . '_' . $var_name . '.' . PHP_EXT);

-

- // If no data there, then the file expired...

- if ($expired)

- {

- // Destroy

- $this->destroy($var_name);

- return false;

- }

-

- return $data;

- }

-

- /**

- * {@link phpbb_acm_abstract::put() put()}

- */

- public function put($var_name, $data, $ttl = 31536000)

- {

- if ($var_name[0] === '#')

- {

- $var_name = substr($var_name, 1);

- return $this->put_global($var_name, $data, $ttl);

- }

-

- $filename = $this->cache_dir . $this->cache_prefix . '_' . $var_name . '.' . PHP_EXT;

-

- if ($fp = @fopen($filename, 'wb'))

- {

- @flock($fp, LOCK_EX);

- fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$expired = (time() > " . (time() + $ttl) . ") ? true : false;\nif (\$expired) { return; }\n\$data = " . (sizeof($data) ? "unserialize(" . var_export(serialize($data), true) . ");" : 'array();'));

- @flock($fp, LOCK_UN);

- fclose($fp);

-

- phpbb::$system->chmod($filename, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE);

- }

-

- return $data;

- }

-

-

- /**

- * {@link phpbb_acm_abstract::exists() exists()}

- */

- public function exists($var_name)

- {

- if ($var_name[0] === '#')

- {

- $var_name = substr($var_name, 1);

- return $this->exists_global($var_name);

- }

-

- return file_exists($this->cache_dir . $this->cache_prefix . '_' . $var_name . '.' . PHP_EXT);

- }

-

- /**

- * {@link phpbb_acm_abstract::destroy() destroy()}

- */

- public function destroy($var_name)

- {

- if ($var_name[0] === '#')

- {

- $var_name = substr($var_name, 1);

- $this->destroy_global($var_name);

- }

-

- if (!$this->exists($var_name))

- {

- return false;

- }

-

- $this->remove_file($this->cache_dir . $this->cache_prefix . '_' . $var_name . '.' . PHP_EXT, true);

- }

-

- /**

- * {@link phpbb_acm_abstract::load() load()}

- */

- public function load()

- {

- // grab the global cache

- if (file_exists($this->cache_dir . $this->cache_prefix . '_global.' . PHP_EXT))

- {

- @include($this->cache_dir . $this->cache_prefix . '_global.' . PHP_EXT);

- return true;

- }

-

- return false;

- }

-

- /**

- * {@link phpbb_acm_abstract::unload() unload()}

- */

- public function unload()

- {

- if (!$this->is_modified)

- {

- return;

- }

-

- $filename = $this->cache_dir . $this->cache_prefix . '_global.' . PHP_EXT;

-

- if ($fp = @fopen($filename, 'wb'))

- {

- @flock($fp, LOCK_EX);

- fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$this->vars = unserialize(" . var_export(serialize($this->vars), true) . ");\n\$this->var_expires = unserialize(" . var_export(serialize($this->var_expires), true) . ");");

- @flock($fp, LOCK_UN);

- fclose($fp);

-

- phpbb::$system->chmod($filename, phpbb::CHMOD_READ | phpbb::CHMOD_WRITE);

- }

- else

- {

- // Now, this occurred how often? ... phew, just tell the user then...

- if (!@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 ' . $filename);

- exit;

- }

-

- $this->is_modified = false;

-

- // To reset the global vars

- $this->vars = $this->var_expires = array();

- }

-

- /**

- * Tidy local cache data. Also see {@link phpbb_acm_abstract::tidy() tidy()}

- * @access protected

- */

- protected function tidy_local()

- {

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, $this->cache_prefix . '_') !== 0 || strpos($entry, $this->cache_prefix . '_global') === 0)

- {

- continue;

- }

-

- $expired = true;

- @include($this->cache_dir . $entry);

-

- if ($expired)

- {

- $this->remove_file($this->cache_dir . $entry);

- }

- }

- closedir($dir);

- }

-

- /**

- * Purge local cache data. Also see {@link phpbb_acm_abstract::purge() purge()}

- * @access protected

- */

- protected function purge_local()

- {

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, $this->cache_prefix . '_') !== 0 || strpos($entry, $this->cache_prefix . '_global') === 0)

- {

- continue;

- }

-

- $this->remove_file($this->cache_dir . $entry);

- }

- closedir($dir);

- }

-

- /**

- * Get modified date for cache entry

- *

- * @param string $var_name The cache variable name

- * @access public

- */

- public function get_modified_date($var_name)

- {

- return @filemtime($this->cache_dir . $this->cache_prefix . '_' . $var_name . '.' . PHP_EXT);

- }

-

- /**

- * Removes/unlinks file

- *

- * @param string $filename The filename to remove

- * @param bool $check If true the cache directory is checked for correct directory permissions.

- * @access protected

- */

- protected function remove_file($filename, $check = false)

- {

- if ($check && !@is_writable($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);

- }

-}

-

-/**

-* Special implementation for cache type 'sql'

-* @package acm

-*/

-class phpbb_acm_file_sql extends phpbb_acm_file

-{

- /**

- * {@link phpbb_acm_abstract::destroy() destroy()}

- */

- public function destroy($var_name)

- {

- if ($var_name[0] === '#')

- {

- $var_name = substr($var_name, 1);

- $this->destroy_global($var_name);

- }

-

- $table = (!is_array($var_name)) ? array($var_name) : $var_name;

- $dir = @opendir($this->cache_dir);

-

- if (!$dir)

- {

- return;

- }

-

- while (($entry = readdir($dir)) !== false)

- {

- if (strpos($entry, $this->cache_prefix . '_') !== 0)

- {

- continue;

- }

-

- // The following method is more failproof than simply assuming the query is on line 3 (which it should be)

- @include($this->cache_dir . $entry);

-

- if (empty($data))

- {

- $this->remove_file($this->cache_dir . $entry);

- continue;

- }

-

- // Get the query

- $data = $data['query'];

-

- $found = false;

- foreach ($table as $check_table)

- {

- // Better catch partial table names than no table names. ;)

- if (strpos($data, $check_table) !== false)

- {

- $found = true;

- break;

- }

- }

-

- if ($found)

- {

- $this->remove_file($this->cache_dir . $entry);

- }

- }

- closedir($dir);

-

- return;

- }

-}

-

-?> \ No newline at end of file

-<?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 File Based Caching

-* @package acm

-*/

-class acm

-{

- var $vars = array();

- var $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- var $memcache;

-

- /**

- * Set cache path

- */

- function acm()

- {

- $this->cache_dir = $phpbb_root_path . 'cache/';

- $this->memcache = memcache_connect('localhost', 11211);

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- // grab the global cache

- $this->vars = memcache_get($this->memcache, '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;

- }

-

- memcache_set($this->memcache, 'global', $this->vars, 0, 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 memcache_get($this->memcache, $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] == '_')

- {

- memcache_set($this->memcache, $var_name, $var, 0, $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);

-

- memcache_flush($this->memcache);

-

- 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

- $temp = memcache_get($this->memcache, 'sql_' . $table_name);

-

- if ($temp === false)

- {

- continue;

- }

-

- // delete each query ref

- foreach ($temp as $md5_id => $void)

- {

- memcache_delete($this->memcache, 'sql_' . $md5_id);

- }

-

- // delete the table ref

- memcache_delete($this->memcache, 'sql_' . $table_name);

- }

-

- return;

- }

-

- if (!$this->_exists($var_name))

- {

- return;

- }

-

- if ($var_name[0] == '_')

- {

- memcache_delete($this->memcache, $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 true;

- }

- 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);

-

- $temp = memcache_get($this->memcache, 'sql_' . md5($query));

-

- if ($temp === false)

- {

- return false;

- }

-

- $this->sql_rowset[$query_id] = $temp;

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * Save sql query

- */

- function sql_save($query, &$query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- // determine which tables this query belongs to

- preg_match('/FROM \\(?(\\w+(?: \\w+)?(?:, ?\\w+(?: \\w+)?)*)\\)?/', $query, $regs);

- $tables = array_map('trim', explode(',', $regs[1]));

-

- foreach ($tables as $table_name)

- {

- if (($pos = strpos($table_name, ' ')) !== false)

- {

- $table_name = substr($table_name, 0, $pos);

- }

-

- $temp = memcache_get($this->memcache, 'sql_' . $table_name);

- if ($temp === false)

- {

- $temp = array();

- }

- $temp[md5($query)] = true;

- memcache_set($this->memcache, 'sql_' . $table_name, $temp, 0, $ttl);

- }

-

- // 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 ($row = phpbb::$db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- phpbb::$db->sql_freeresult($query_result);

-

- memcache_set($this->memcache, 'sql_' . md5($query), $this->sql_rowset[$query_id], 0, $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 ($check && !@is_writable($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);

- }

-}

-

-?> \ No newline at end of file

-<?php

-/**

-*

-* @package acm

-* @version $Id$

-* @copyright (c) 2005 phpBB Group

-* @license http://opensource.org/licenses/gpl-license.php GNU Public License

-*

-*/

-

-/**

-* ACM XCache Based Caching

-* @package acm

-*/

-class acm

-{

- var $vars = array();

- var $is_modified = false;

-

- var $sql_rowset = array();

- var $sql_row_pointer = array();

- var $cache_dir = '';

-

- /**

- * Set cache path

- */

- function acm()

- {

- $this->cache_dir = $phpbb_root_path . 'cache/';

- }

-

- /**

- * Load global cache

- */

- function load()

- {

- // grab the global cache

- if (xcache_isset('global'))

- {

- $this->vars = xcache_get('global');

- return true;

- }

-

- return false;

- }

-

- /**

- * Unload cache object

- */

- function unload()

- {

- $this->save();

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

- }

-

- /**

- * Save modified objects

- */

- function save()

- {

- if (!$this->is_modified)

- {

- return;

- }

-

- xcache_set('global', $this->vars, 31536000);

-

- $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] == '_')

- {

- return (xcache_isset($var_name)) ? xcache_get($var_name) : false;

- }

- else

- {

- if (!sizeof($this->vars))

- {

- $this->load();

- }

- return (isset($this->vars[$var_name])) ? $this->vars[$var_name] : false;

- }

- }

-

- /**

- * Put data into cache

- */

- function put($var_name, $var, $ttl = 31536000)

- {

- if ($var_name[0] == '_')

- {

- xcache_set($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;

- }

-

- @unlink($this->cache_dir . $entry);

- }

- closedir($dir);

-

- $n = xcache_count(XC_TYPE_VAR);

- for ($i = 0; $i < $n; $i++)

- {

- xcache_clear_cache(XC_TYPE_VAR, $i);

- }

-

- unset($this->vars);

- unset($this->sql_rowset);

- unset($this->sql_row_pointer);

-

- $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

- if (!xcache_isset('sql_' . $table_name))

- {

- continue;

- }

- $temp = xcache_get('sql_' . $table_name);

-

- // delete each query ref

- foreach ($temp as $md5_id => $void)

- {

- xcache_unset('sql_' . $md5_id);

- }

-

- // delete the table ref

- xcache_unset('sql_' . $table_name);

- }

-

- return;

- }

-

- if ($var_name[0] == '_')

- {

- xcache_unset($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();

- }

- }

-

- /**

- * 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 (!xcache_isset('sql_' . md5($query)))

- {

- return false;

- }

-

- $this->sql_rowset[$query_id] = xcache_get('sql_' . md5($query));

-

- $this->sql_row_pointer[$query_id] = 0;

-

- return $query_id;

- }

-

- /**

- * Save sql query

- */

- function sql_save($query, &$query_result, $ttl)

- {

- // Remove extra spaces and tabs

- $query = preg_replace('/[\n\r\s\t]+/', ' ', $query);

-

- // determine which tables this query belongs to

- preg_match('/FROM \\(?(\\w+(?: \\w+)?(?:, ?\\w+(?: \\w+)?)*)\\)?/', $query, $regs);

- $tables = array_map('trim', explode(',', $regs[1]));

-

- foreach ($tables as $table_name)

- {

- if (($pos = strpos($table_name, ' ')) !== false)

- {

- $table_name = substr($table_name, 0, $pos);

- }

-

- if (xcache_isset('sql_' . $table_name))

- {

- $temp = xcache_get('sql_' . $table_name);

- }

- else

- {

- $temp = array();

- }

- $temp[md5($query)] = true;

- xcache_set('sql_' . $table_name, $temp, $ttl);

- }

-

- // 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 ($row = phpbb::$db->sql_fetchrow($query_result))

- {

- $this->sql_rowset[$query_id][] = $row;

- }

- phpbb::$db->sql_freeresult($query_result);

-

- xcache_set('sql_' . md5($query), $this->sql_rowset[$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;

- }

-}

-

-?> \ No newline at end of file

-<?php

-/**

-*

-* @package acm

-* @version $Id: acm_file.php 9233 2008-12-27 12:18:04Z acydburn $

-* @copyright (c) 2005 phpBB Group

-* @license http://opensource.org/licenses/gpl-license.php GNU Public License

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* Base cache class.

-*

-* A prefix of # for $var_name indicates global data.

-*

-* @method mixed get($var_name) Get cached data.

-* @method mixed put($var_name, $data, $ttl = 31536000) Put data into cache.

-* @method mixed destroy($var_name) Destroy cached data.

-* @method mixed exists($var_name) Check if cached data exists.

-*

-* @package acm

-*/

-class phpbb_acm

-{

- /**

- * @var array required phpBB objects

- */

- public $phpbb_required = array();

-

- /**

- * @var array Optional phpBB objects

- */

- public $phpbb_optional = array();

-

- /**

- * @var array Currently registered core acm types.

- */

- public $cache_types = array('data' => NULL, 'sql' => NULL);

-

- /**

- * Constructor

- * @access public

- */

- public function __construct() { }

-

- /**

- * Magic method for calling type-specific functions.

- * Functions directly supported are: get(), put(), exists(), destroy()

- *

- * The type is added to the methods name, for getting sql data just use get_sql() for example.

- *

- * see {@link phpbb_acm_abstract phpbb_acm_abstract} for more information

- *

- * @access public

- */

- public function __call($method, $arguments)

- {

- $supported_internal_functions = array('get', 'put', 'exists', 'destroy');

- $internal_method = explode('_', $method, 2);

-

- // Get cache type and method

- if (in_array($internal_method[0], $supported_internal_functions))

- {

- $cache_type = (empty($internal_method[1])) ? 'data' : $internal_method[1];

- $method = $internal_method[0];

- }

- else

- {

- $cache_type = $arguments[0];

- array_shift($arguments);

- }

-

- // Check if the cache type is initialized and exist

- if (!$this->type_exists($cache_type))

- {

- return false;

- }

-

- // $this->cache_types[$cache_type]->$method($arguments);

- return call_user_func_array(array($this->cache_types[$cache_type], $method), $arguments);

- }

-

- /**

- * Tidy cache. This removes all expired cache data.

- * @access public

- */

- public function tidy()

- {

- foreach ($this->cache_types as $cache_type => $object)

- {

- if ($object === NULL)

- {

- continue;

- }

-

- $this->cache_types[$cache_type]->tidy();

- }

- }

-

- /**

- * Purge cache. This removes all cache data, not only the expired one.

- * @access public

- */

- public function purge()

- {

- foreach ($this->cache_types as $cache_type => $object)

- {

- if ($object === NULL)

- {

- continue;

- }

-

- $this->cache_types[$cache_type]->purge();

- }

- }

-

- /**

- * Load cache data. This is usually only used internally.

- * @access public

- */

- public function load()

- {

- foreach ($this->cache_types as $cache_type => $object)

- {

- if ($object === NULL)

- {

- continue;

- }

-

- $this->cache_types[$cache_type]->load();

- }

- }

-

- /**

- * Unload everything from cache and make sure non-stored cache items are properly saved.

- * @access public

- */

- public function unload()

- {

- foreach ($this->cache_types as $cache_type => $object)

- {

- if ($object === NULL)

- {

- continue;

- }

-

- $this->cache_types[$cache_type]->unload();

- }

- }

-

- /**

- * Register a custom cache type/class.

- *

- * @param string $cache_type The cache type to register/set

- * @param string $cache_append String to append to the cached data as identifier (if the coder has different types to distinct from)

- * @param string $cache_object The exact name of the cache class to load.

- * The filename must be: <code>includes/acm/acm_{$cache_object}.php</code>

- * The class definition must be: <code>class phpbb_acm_{$cache_object} extends phpbb_acm_abstract</code>

- * Additionally it is possible to define classes for every cache type...

- * for example: <code>phpbb_acm_{$cache_object}_{$cache_type} extends phpbb_acm_{$cache_object}</code>

- *

- * @return bool Returns true on success, else false.

- * @access public

- */

- public function register($cache_type, $cache_append = false, $cache_object = false)

- {

- $cache_object = ($cache_object === false) ? basename(phpbb::$base_config['acm_type']) : basename($cache_object);

-

- // We need to init every cache type...

- if (!isset($this->cache_types[$cache_type]))

- {

- $this->cache_types[$cache_type] = NULL;

- }

-

- // Unregister if already registered

- if ($this->cache_types[$cache_type] !== NULL)

- {

- $this->cache_types[$cache_type] = NULL;

- }

-

- if ($this->cache_types[$cache_type] === NULL)

- {

- $class_name = 'phpbb_acm_' . $cache_object;

-

- if (!class_exists($class_name))

- {

- if (!file_exists(PHPBB_ROOT_PATH . 'includes/acm/acm_' . $cache_object . '.' . PHP_EXT))

- {

- return false;

- }

-

- require_once PHPBB_ROOT_PATH . 'includes/acm/acm_' . $cache_object . '.' . PHP_EXT;

- }

-

- $class_name = (class_exists('phpbb_acm_' . $cache_object . '_' . $cache_type)) ? 'phpbb_acm_' . $cache_object . '_' . $cache_type : 'phpbb_acm_' . $cache_object;

-

- // Set cache prefix, for example ctpl_prosilver

- $cache_prefix = ($cache_append === false) ? $cache_type : $cache_type . '_' . $cache_append;

-

- $this->cache_types[$cache_type] = new $class_name($cache_prefix);

-

- if (!$this->supported($cache_type))

- {

- $this->cache_types[$cache_type] = NULL;

- return false;

- }

- }

-

- return true;

- }

-

- /**

- * Check if a specified cache type is supported with the ACM class

- *

- * @param string $cache_type The cache type to check.

- *

- * @return bool True if the type is supported, else false.

- * @access public

- */

- public function supported($cache_type)

- {

- if (!$this->type_exists($cache_type))

- {

- return false;

- }

-

- return !empty($this->cache_types[$cache_type]->supported[$cache_type]) || $this->cache_types[$cache_type]->supported === true;

- }

-

- /**

- * Check if the cache type exists. Sometimes some types do not exist if the relevant files are not there or do not support the given cache type.

- *

- * @param string $cache_type The cache type to check.

- *

- * @return bool True if the type exist, else false.

- * @access private

- */

- private function type_exists($cache_type)

- {

- if (!isset($this->cache_types[$cache_type]) || $this->cache_types[$cache_type] === NULL)

- {

- $this->register($cache_type);

- }

-

- return $this->cache_types[$cache_type] !== NULL;

- }

-}

-

-

-/**

-* The abstract class all ACM plugins must extend.

-* @package acm

-*/

-abstract class phpbb_acm_abstract

-{

- /**

- * @var string The current cache prefix

- */

- public $cache_prefix = '';

-

- /**

- * @var array Cached global data

- */

- protected $vars = array();

-

- /**

- * @var array Expire information for cached global data

- */

- protected $var_expires = array();

-

- /**

- * @var bool Is true if global data is modified

- */

- protected $is_modified = false;

-

- /**

- * Get cached data

- *

- * @param string $var_name Variable name. Global variable name is prefixed with #.

- *

- * @return mixed Returns false if there is no data available, else returns the data

- * @access public

- */

- abstract public function get($var_name);

-

- /**

- * Put data into cache

- *

- * @param string $var_name Variable name. Global variable name is prefixed with #.

- * @param mixed $data Data to be put into cache.

- * @param int $ttl Cache lifetime in seconds.

- *

- * @return mixed Returns $data

- * @access public

- */

- abstract public function put($var_name, $data, $ttl = 31536000);

-

- /**

- * Destroy cached data.

- *

- * @param string $var_name Variable name. Global variable name is prefixed with #.

- *

- * @return mixed Returns false if the cached data does not exist

- * @access public

- */

- abstract public function destroy($var_name);

-

- /**

- * Check if cached data exists.

- *

- * @param string $var_name Variable name. Global variable name is prefixed with #.

- *

- * @return bool True if it exists

- * @access public

- */

- abstract public function exists($var_name);

-

- /**

- * Load cache data. This is usually only used internally.

- * @access public

- */

- abstract public function load();

-

- /**

- * Unload everything from cache and make sure non-stored cache items are properly saved.

- * @access public

- */

- abstract public function unload();

-

- /**

- * Tidy cache. This removes all expired cache data.

- * @access public

- */

- public function tidy()

- {

- $this->tidy_local();

- $this->tidy_global();

-

- set_config('cache_last_gc', time(), true);

- }

-

- /**

- * Purge cache. This removes all cache data, not only the expired one.

- * @access public

- */

- public function purge()

- {

- $this->purge_local();

- $this->purge_global();

- }

-

- /**

- * Tidy only local cache data

- * @access protected

- */

- abstract protected function tidy_local();

-

- /**

- * Purge only local cache data

- * @access protected

- */

- abstract protected function purge_local();

-

- /**

- * Get global cache data. See {@link get() get()}.

- * @access protected

- */

- protected function get_global($var_name)

- {

- // Check if we have all variables

- if (!sizeof($this->vars))

- {

- $this->load();

- }

-

- if (!isset($this->var_expires[$var_name]))

- {

- return false;

- }

-

- // If expired... we remove this entry now...

- if (time() > $this->var_expires[$var_name])

- {

- $this->destroy('#' . $var_name);

- return false;

- }

-

- if (isset($this->vars[$var_name]))

- {

- return $this->vars[$var_name];

- }

-

- return false;

- }

-

- /**

- * Put data into global cache. See {@link put() put()}.

- * @access protected

- */

- protected function put_global($var_name, $data, $ttl = 31536000)

- {

- $this->vars[$var_name] = $data;

- $this->var_expires[$var_name] = time() + $ttl;

- $this->is_modified = true;

-

- return $data;

- }

-

- /**

- * Check if global data exists. See {@link exists() exists()}.

- * @access protected

- */

- protected function exists_global($var_name)

- {

- return !empty($this->vars[$var_name]) && time() <= $this->var_expires[$var_name];

- }

-

- /**

- * Destroy global cache data. See {@link destroy() destroy()}.

- * @access protected

- */

- protected function destroy_global($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->unload();

- }

-

- /**

- * Tidy global cache data. See {@link tidy() tidy()}.

- * @access protected

- */

- protected function tidy_global()

- {

- // Now tidy global settings

- if (!sizeof($this->vars))

- {

- $this->load();

- }

-

- foreach ($this->var_expires as $var_name => $expires)

- {

- if (time() > $expires)

- {

- // We only unset, then save later

- unset($this->vars[$var_name]);

- unset($this->var_expires[$var_name]);

- }

- }

-

- $this->is_modified = true;

- $this->unload();

- }

-

- /**

- * Purge global cache data. See {@link purge() purge()}.

- * @access protected

- */

- protected function purge_global()

- {

- // Now purge global settings

- unset($this->vars);

- unset($this->var_expires);

-

- $this->vars = array();

- $this->var_expires = array();

-

- $this->is_modified = true;

- $this->unload();

- }

-}

-

-

-

-?> \ No newline at end of file