<?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;
/**
* Zend Data Cache cache driver.
*
* @link www.doctrine-project.org
* @since 2.0
* @author Ralph Schindler <ralph.schindler@zend.com>
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
*/
class ZendDataCache extends CacheProvider
{
/**
* {@inheritdoc}
*/
protected function doFetch($id)
{
return zend_shm_cache_fetch($id);
}
/**
* {@inheritdoc}
*/
protected function doContains($id)
{
return (false !== zend_shm_cache_fetch($id));
}
/**
* {@inheritdoc}
*/
protected function doSave($id, $data, $lifeTime = 0)
{
return zend_shm_cache_store($id, $data, $lifeTime);
}
/**
* {@inheritdoc}
*/
protected function doDelete($id)
{
return zend_shm_cache_delete($id);
}
/**
* {@inheritdoc}
*/
protected function doFlush()
{
$namespace = $this->getNamespace();
if (empty($namespace)) {
return zend_shm_cache_clear();
}
return zend_shm_cache_clear($namespace);
}
/**
* {@inheritdoc}
*/
protected function doGetStats()
{
return null;
}
}