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<?php
namespace Doctrine\Common\Cache;
use function apcu_cache_info;
use function apcu_clear_cache;
use function apcu_delete;
use function apcu_exists;
use function apcu_fetch;
use function apcu_sma_info;
use function apcu_store;
use function count;
/**
* APCu cache provider.
*
* @link www.doctrine-project.org
*/
class ApcuCache extends CacheProvider
{
/**
* {@inheritdoc}
*/
protected function doFetch($id)
{
return apcu_fetch($id);
}
/**
* {@inheritdoc}
*/
protected function doContains($id)
{
return apcu_exists($id);
}
/**
* {@inheritdoc}
*/
protected function doSave($id, $data, $lifeTime = 0)
{
return apcu_store($id, $data, $lifeTime);
}
/**
* {@inheritdoc}
*/
protected function doDelete($id)
{
// apcu_delete returns false if the id does not exist
return apcu_delete($id) || ! apcu_exists($id);
}
/**
* {@inheritdoc}
*/
protected function doDeleteMultiple(array $keys)
{
$result = apcu_delete($keys);
return $result !== false && count($result) !== count($keys);
}
/**
* {@inheritdoc}
*/
protected function doFlush()
{
return apcu_clear_cache();
}
/**
* {@inheritdoc}
*/
protected function doFetchMultiple(array $keys)
{
return apcu_fetch($keys) ?: [];
}
/**
* {@inheritdoc}
*/
protected function doSaveMultiple(array $keysAndValues, $lifetime = 0)
{
$result = apcu_store($keysAndValues, null, $lifetime);
return empty($result);
}
/**
* {@inheritdoc}
*/
protected function doGetStats()
{
$info = apcu_cache_info(true);
$sma = apcu_sma_info();
return [
Cache::STATS_HITS => $info['num_hits'],
Cache::STATS_MISSES => $info['num_misses'],
Cache::STATS_UPTIME => $info['start_time'],
Cache::STATS_MEMORY_USAGE => $info['mem_size'],
Cache::STATS_MEMORY_AVAILABLE => $sma['avail_mem'],
];
}
}
|
