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Diffstat (limited to 'vendor/smarty/smarty/demo/plugins/cacheresource.memcache.php')
-rw-r--r-- | vendor/smarty/smarty/demo/plugins/cacheresource.memcache.php | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/smarty/smarty/demo/plugins/cacheresource.memcache.php b/vendor/smarty/smarty/demo/plugins/cacheresource.memcache.php new file mode 100644 index 000000000..945beb349 --- /dev/null +++ b/vendor/smarty/smarty/demo/plugins/cacheresource.memcache.php @@ -0,0 +1,101 @@ +<?php + +/** + * Memcache CacheResource + * CacheResource Implementation based on the KeyValueStore API to use + * memcache as the storage resource for Smarty's output caching. + * Note that memcache has a limitation of 256 characters per cache-key. + * To avoid complications all cache-keys are translated to a sha1 hash. + * + * @package CacheResource-examples + * @author Rodney Rehm + */ +class Smarty_CacheResource_Memcache extends Smarty_CacheResource_KeyValueStore +{ + /** + * memcache instance + * + * @var Memcache + */ + protected $memcache = null; + + public function __construct() + { + if (class_exists('Memcached')) { + $this->memcache = new Memcached(); + } else { + $this->memcache = new Memcache(); + } + $this->memcache->addServer('127.0.0.1', 11211); + } + + /** + * Read values for a set of keys from cache + * + * @param array $keys list of keys to fetch + * + * @return array list of values with the given keys used as indexes + * @return boolean true on success, false on failure + */ + protected function read(array $keys) + { + $_keys = $lookup = array(); + foreach ($keys as $k) { + $_k = sha1($k); + $_keys[] = $_k; + $lookup[ $_k ] = $k; + } + $_res = array(); + $res = $this->memcache->get($_keys); + foreach ($res as $k => $v) { + $_res[ $lookup[ $k ] ] = $v; + } + + return $_res; + } + + /** + * Save values for a set of keys to cache + * + * @param array $keys list of values to save + * @param int $expire expiration time + * + * @return boolean true on success, false on failure + */ + protected function write(array $keys, $expire = null) + { + foreach ($keys as $k => $v) { + $k = sha1($k); + $this->memcache->set($k, $v, 0, $expire); + } + + return true; + } + + /** + * Remove values from cache + * + * @param array $keys list of keys to delete + * + * @return boolean true on success, false on failure + */ + protected function delete(array $keys) + { + foreach ($keys as $k) { + $k = sha1($k); + $this->memcache->delete($k); + } + + return true; + } + + /** + * Remove *all* values from cache + * + * @return boolean true on success, false on failure + */ + protected function purge() + { + $this->memcache->flush(); + } +} |