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   1  <?php
   2  /**
   3  *
   4  * This file is part of the phpBB Forum Software package.
   5  *
   6  * @copyright (c) phpBB Limited <https://www.phpbb.com>
   7  * @license GNU General Public License, version 2 (GPL-2.0)
   8  *
   9  * For full copyright and license information, please see
  10  * the docs/CREDITS.txt file.
  11  *
  12  */
  13  
  14  namespace phpbb\cron\task\core;
  15  
  16  /**
  17  * Tidy cache cron task.
  18  */
  19  class tidy_cache extends \phpbb\cron\task\base
  20  {
  21      protected $config;
  22      protected $cache;
  23  
  24      /**
  25      * Constructor.
  26      *
  27      * @param \phpbb\config\config $config The config
  28      * @param \phpbb\cache\driver\driver_interface $cache The cache driver
  29      */
  30  	public function __construct(\phpbb\config\config $config, \phpbb\cache\driver\driver_interface $cache)
  31      {
  32          $this->config = $config;
  33          $this->cache = $cache;
  34      }
  35  
  36      /**
  37      * Runs this cron task.
  38      *
  39      * @return null
  40      */
  41  	public function run()
  42      {
  43          $this->cache->tidy();
  44      }
  45  
  46      /**
  47      * Returns whether this cron task can run, given current board configuration.
  48      *
  49      * Tidy cache cron task runs if the cache implementation in use
  50      * supports tidying.
  51      *
  52      * @return bool
  53      */
  54  	public function is_runnable()
  55      {
  56          return true;
  57      }
  58  
  59      /**
  60      * Returns whether this cron task should run now, because enough time
  61      * has passed since it was last run.
  62      *
  63      * The interval between cache tidying is specified in board
  64      * configuration.
  65      *
  66      * @return bool
  67      */
  68  	public function should_run()
  69      {
  70          return $this->config['cache_last_gc'] < time() - $this->config['cache_gc'];
  71      }
  72  }