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- <?php
- namespace Doctrine\Common\Cache;
- use Memcache;
- use function time;
- /**
- * Memcache cache provider.
- *
- * @deprecated
- *
- * @link www.doctrine-project.org
- */
- class MemcacheCache extends CacheProvider
- {
- /** @var Memcache|null */
- private $memcache;
- /**
- * Sets the memcache instance to use.
- *
- * @return void
- */
- public function setMemcache(Memcache $memcache)
- {
- $this->memcache = $memcache;
- }
- /**
- * Gets the memcache instance used by the cache.
- *
- * @return Memcache|null
- */
- public function getMemcache()
- {
- return $this->memcache;
- }
- /**
- * {@inheritdoc}
- */
- protected function doFetch($id)
- {
- return $this->memcache->get($id);
- }
- /**
- * {@inheritdoc}
- */
- protected function doContains($id)
- {
- $flags = null;
- $this->memcache->get($id, $flags);
- //if memcache has changed the value of "flags", it means the value exists
- return $flags !== null;
- }
- /**
- * {@inheritdoc}
- */
- protected function doSave($id, $data, $lifeTime = 0)
- {
- if ($lifeTime > 30 * 24 * 3600) {
- $lifeTime = time() + $lifeTime;
- }
- return $this->memcache->set($id, $data, 0, (int) $lifeTime);
- }
- /**
- * {@inheritdoc}
- */
- protected function doDelete($id)
- {
- // Memcache::delete() returns false if entry does not exist
- return $this->memcache->delete($id) || ! $this->doContains($id);
- }
- /**
- * {@inheritdoc}
- */
- protected function doFlush()
- {
- return $this->memcache->flush();
- }
- /**
- * {@inheritdoc}
- */
- protected function doGetStats()
- {
- $stats = $this->memcache->getStats();
- return [
- Cache::STATS_HITS => $stats['get_hits'],
- Cache::STATS_MISSES => $stats['get_misses'],
- Cache::STATS_UPTIME => $stats['uptime'],
- Cache::STATS_MEMORY_USAGE => $stats['bytes'],
- Cache::STATS_MEMORY_AVAILABLE => $stats['limit_maxbytes'],
- ];
- }
- }
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