65 lines
2.0 KiB
PHP
65 lines
2.0 KiB
PHP
<?php
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namespace Automattic\Jetpack_Boost\Modules\Optimizations\Page_Cache;
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use Automattic\Jetpack_Boost\Modules\Optimizations\Page_Cache\Pre_WordPress\Boost_Cache;
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use Automattic\Jetpack_Boost\Modules\Optimizations\Page_Cache\Pre_WordPress\Logger;
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class Garbage_Collection {
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const ACTION = 'jetpack_boost_cache_garbage_collection';
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/**
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* Register hooks.
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*/
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public static function setup() {
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add_action( self::ACTION, array( self::class, 'garbage_collect' ) );
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// Clear old log files when garbage collection is run. Do not pass the $older_than parameter to the method as it's not supported.
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add_action( self::ACTION, array( Logger::class, 'delete_old_logs' ), 10, 0 );
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}
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public static function schedule_single_garbage_collection() {
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$older_than = time();
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wp_schedule_single_event( $older_than, self::ACTION, array( 'older_than' => $older_than ) );
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}
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/**
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* Garbage collect expired files.
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*
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* @param int|null $older_than The timestamp before which files should be deleted. If not provided, the files older than default cache duration will be deleted.
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*/
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public static function garbage_collect( $older_than = null ) {
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$cache_ttl = JETPACK_BOOST_CACHE_DURATION;
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/*
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* If an $older_than value is specified, use it to calculate the cache TTL.
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* By specifying $older_than, you can instruct garbage collection to apply on files created before a certain point in time.
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* This ensures garbage collection is not clearing files that were created after the request was made. Useful to avoid race conditions.
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*/
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if ( $older_than !== null ) {
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$cache_ttl = time() - $older_than;
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}
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$cache = new Boost_Cache();
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$cache->get_storage()->garbage_collect( $cache_ttl );
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}
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/**
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* Setup the garbage collection cron job.
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*/
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public static function activate() {
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self::setup();
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if ( ! wp_next_scheduled( self::ACTION ) ) {
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wp_schedule_event( time(), 'hourly', self::ACTION );
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}
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}
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/**
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* Remove the garbage collection cron job.
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*/
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public static function deactivate() {
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wp_clear_scheduled_hook( self::ACTION );
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}
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}
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