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65 lines
1.2 KiB
PHP
65 lines
1.2 KiB
PHP
<?php
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/**
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*
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* @package phpBB3
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* @version $Id$
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* @copyright (c) 2010 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined('IN_PHPBB'))
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{
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exit;
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}
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/**
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* Cron task base class. Provides sensible defaults for cron tasks
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* and partially implements cron task interface, making writing cron tasks easier.
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*
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* At a minimum, subclasses must override the run() method.
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*
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* Cron tasks need not inherit from this base class. If desired,
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* they may implement cron task interface directly.
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*
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* @package phpBB3
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*/
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abstract class cron_task_base
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{
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/**
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* Runs this cron task.
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*/
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abstract public function run();
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/**
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* Returns whether this cron task can run, given current board configuration.
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*
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* For example, a cron task that prunes forums can only run when
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* forum pruning is enabled.
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*/
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public function is_runnable()
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{
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return true;
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}
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/**
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* Returns whether this cron task should run now, because enough time
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* has passed since it was last run.
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*/
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public function should_run()
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{
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return true;
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}
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/**
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* Returns whether this cron task can be run in shutdown function.
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*/
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public function is_shutdown_function_safe()
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{
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return true;
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}
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}
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