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<?php
/**
* SimplePie
*
* A PHP-Based RSS and Atom Feed Framework.
* Takes the hard work out of managing a complete RSS/Atom solution.
*
* Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* 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 HOLDERS
* AND 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.
*
* @package SimplePie
* @version 1.3-dev
* @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue
* @author Ryan Parman
* @author Geoffrey Sneddon
* @author Ryan McCue
* @link http://simplepie.org/ SimplePie
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @todo phpDoc comments
*/
class SimplePie_Cache_Memcache implements SimplePie_Cache_Base
{
protected $cache;
protected $options;
protected $name;
public function __construct($url, $filename, $extension)
{
$this->options = array(
'host' => '127.0.0.1',
'port' => 11211,
'extras' => array(
'timeout' => 3600, // one hour
'prefix' => 'simplepie_',
),
);
$this->options = array_merge_recursive($this->options, SimplePie_Cache::parse_URL($url));
$this->name = $this->options['extras']['prefix'] . md5("$filename:$extension");
$this->cache = new Memcache();
$this->cache->addServer($this->options['host'], (int) $this->options['port']);
}
public function save($data)
{
if (is_a($data, 'SimplePie'))
{
$data = $data->data;
}
return $this->cache->set($this->name, serialize($data), MEMCACHE_COMPRESSED, (int) $this->options['extras']['timeout']);
}
public function load()
{
$data = $this->cache->get($this->name);
if ($data !== false)
{
return unserialize($data);
}
return false;
}
public function mtime()
{
$data = $this->cache->get($this->name);
if ($data !== false)
{
// essentially ignore the mtime because Memcache expires on it's own
return time();
}
return false;
}
public function touch()
{
$data = $this->cache->get($this->name);
if ($data !== false)
{
return $this->cache->set($this->name, $data, MEMCACHE_COMPRESSED, (int) $this->duration);
}
return false;
}
public function unlink()
{
return $this->cache->delete($this->name);
}
}
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