CHIEFSOFT\ameye
91 lines
2.3 KiB
PHP
91 lines
2.3 KiB
PHP
<?php
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/**
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* @file classes/cache/XCacheCache.php
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*
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* Copyright (c) 2014-2021 Simon Fraser University
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* Copyright (c) 2000-2021 John Willinsky
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* Distributed under the GNU GPL v3. For full terms see the file docs/COPYING.
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*
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* @class XCacheCache
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*
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* @ingroup cache
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*
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* @see GenericCache
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*
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* @brief Provides caching based on XCache's variable store.
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*/
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namespace PKP\cache;
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class XCacheCache extends GenericCache
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{
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/**
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* Flush the cache.
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*/
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public function flush()
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{
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$prefix = INDEX_FILE_LOCATION . ':' . $this->getContext() . ':' . $this->getCacheId();
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if (function_exists('xcache_unset_by_prefix')) {
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// If possible, just flush the context
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xcache_unset_by_prefix(prefix);
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} else {
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// Otherwise, we need to do this manually
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for ($i = 0; $i < xcache_count(XC_TYPE_VAR); $i++) {
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$cache = xcache_list(XC_TYPE_VAR, $i);
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foreach ($cache['cache_list'] as $entry) {
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if (substr($entry['name'], 0, strlen($prefix)) == $prefix) {
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xcache_unset($entry['name']);
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}
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}
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}
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}
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}
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/**
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* Get an object from the cache.
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*
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* @param string $id
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*/
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public function getCache($id)
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{
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$key = INDEX_FILE_LOCATION . ':' . $this->getContext() . ':' . $this->getCacheId() . ':' . $id;
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if (!xcache_isset($key)) {
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return $this->cacheMiss;
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}
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$returner = unserialize(xcache_get($key));
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return $returner;
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}
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/**
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* Set an object in the cache. This function should be overridden
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* by subclasses.
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*
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* @param string $id
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*/
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public function setCache($id, $value)
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{
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return (xcache_set(INDEX_FILE_LOCATION . ':' . $this->getContext() . ':' . $this->getCacheId() . ':' . $id, serialize($value)));
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}
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/**
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* Get the time at which the data was cached.
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* Not implemented in this type of cache.
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*/
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public function getCacheTime()
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{
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return null;
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}
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/**
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* Set the entire contents of the cache.
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* WARNING: THIS DOES NOT FLUSH THE CACHE FIRST!
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*/
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public function setEntireCache($contents)
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{
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foreach ($contents as $id => $value) {
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$this->setCache($id, $value);
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}
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}
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}
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