<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Cache;
/**
* APCu cache provider.
*
* @link www.doctrine-project.org
* @since 1.6
* @author Kévin Dunglas <dunglas@gmail.com>
*/
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 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 array(
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'],
);
}
}