modified file w3-total-cache

wp-content/upgrade-temp-backup/plugins/w3-total-cache/lib/Google/Cache/Apc.php

@@ -0,0 +1,70 @@
+<?php
+/*
+ * Copyright 2010 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+/**
+ * A persistent storage class based on the APC cache, which is not
+ * really very persistent, as soon as you restart your web server
+ * the storage will be wiped, however for debugging and/or speed
+ * it can be useful, and cache is a lot cheaper then storage.
+ *
+ * @author Chris Chabot <chabotc@google.com>
+ */
+class W3TCG_Google_Cache_Apc extends W3TCG_Google_Cache_Abstract
+{
+  public function __construct(W3TCG_Google_Client $client)
+  {
+    if (! function_exists('apc_add') ) {
+      throw new W3TCG_Google_Cache_Exception("Apc functions not available");
+    }
+  }
+
+   /**
+   * @inheritDoc
+   */
+  public function get($key, $expiration = false)
+  {
+    $ret = apc_fetch($key);
+    if ($ret === false) {
+      return false;
+    }
+    if (is_numeric($expiration) && (time() - $ret['time'] > $expiration)) {
+      $this->delete($key);
+      return false;
+    }
+    return $ret['data'];
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function set($key, $value)
+  {
+    $rc = apc_store($key, array('time' => time(), 'data' => $value));
+    if ($rc == false) {
+      throw new W3TCG_Google_Cache_Exception("Couldn't store data");
+    }
+  }
+
+  /**
+   * @inheritDoc
+   * @param String $key
+   */
+  public function delete($key)
+  {
+    apc_delete($key);
+  }
+}