1 files changed, 67 insertions, 0 deletions
diff --git a/lib/private/memcache/apc.php b/lib/private/memcache/apc.php
new file mode 100644
index 00000000000..575ee4427db
--- /dev/null
+++ b/lib/private/memcache/apc.php
@@ -0,0 +1,67 @@
+<?php
+/**
+ * Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\Memcache;
+
+class APC extends Cache {
+	/**
+	 * entries in APC gets namespaced to prevent collisions between owncloud instances and users
+	 */
+	protected function getNameSpace() {
+		return $this->prefix;
+	}
+
+	public function get($key) {
+		$result = apc_fetch($this->getNamespace() . $key, $success);
+		if (!$success) {
+			return null;
+		}
+		return $result;
+	}
+
+	public function set($key, $value, $ttl = 0) {
+		return apc_store($this->getNamespace() . $key, $value, $ttl);
+	}
+
+	public function hasKey($key) {
+		return apc_exists($this->getNamespace() . $key);
+	}
+
+	public function remove($key) {
+		return apc_delete($this->getNamespace() . $key);
+	}
+
+	public function clear($prefix = '') {
+		$ns = $this->getNamespace() . $prefix;
+		$cache = apc_cache_info('user');
+		foreach ($cache['cache_list'] as $entry) {
+			if (strpos($entry['info'], $ns) === 0) {
+				apc_delete($entry['info']);
+			}
+		}
+		return true;
+	}
+
+	static public function isAvailable() {
+		if (!extension_loaded('apc')) {
+			return false;
+		} elseif (!ini_get('apc.enable_cli') && \OC::$CLI) {
+			return false;
+		} else {
+			return true;
+		}
+	}
+}
+
+if (!function_exists('apc_exists')) {
+	function apc_exists($keys) {
+		$result = false;
+		apc_fetch($keys, $result);
+		return $result;
+	}
+}