Moved cache drivers outside core to extensions (plugins)

plugins/cache-redis/Predis/Protocol/ProtocolProcessorInterface.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) Daniele Alessandri <suppakilla@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Protocol;
+
+use Predis\Command\CommandInterface;
+use Predis\Connection\CompositeConnectionInterface;
+
+/**
+ * Defines a pluggable protocol processor capable of serializing commands and
+ * deserializing responses into PHP objects directly from a connection.
+ *
+ * @author Daniele Alessandri <suppakilla@gmail.com>
+ */
+interface ProtocolProcessorInterface
+{
+    /**
+     * Writes a request over a connection to Redis.
+     *
+     * @param CompositeConnectionInterface $connection Redis connection.
+     * @param CommandInterface             $command    Command instance.
+     */
+    public function write(CompositeConnectionInterface $connection, CommandInterface $command);
+
+    /**
+     * Reads a response from a connection to Redis.
+     *
+     * @param CompositeConnectionInterface $connection Redis connection.
+     *
+     * @return mixed
+     */
+    public function read(CompositeConnectionInterface $connection);
+}