add smarty engine, remove some obsolete zot1 stuff

library/Smarty/demo/plugins/cacheresource.apc.php

@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * APC CacheResource
+ *
+ * CacheResource Implementation based on the KeyValueStore API to use
+ * memcache as the storage resource for Smarty's output caching.
+ * *
+ * @package CacheResource-examples
+ * @author Uwe Tews
+ */
+class Smarty_CacheResource_Apc extends Smarty_CacheResource_KeyValueStore {
+
+    public function __construct()
+    {
+        // test if APC is present
+        if(!function_exists('apc_cache_info')) {
+            throw new Exception('APC Template Caching Error: APC is not installed');
+        }
+    }
+
+    /**
+     * 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)
+    {
+        $_res = array();
+        $res = apc_fetch($keys);
+        foreach ($res as $k => $v) {
+            $_res[$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 => $v) {
+            apc_store($k, $v, $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 $k) {
+            apc_delete($k);
+        }
+        return true;
+    }
+
+    /**
+     * Remove *all* values from cache
+     *
+     * @return boolean true on success, false on failure
+     */
+    protected function purge()
+    {
+        return apc_clear_cache('user');
+    }
+}