Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/http-foundation/Session/Storage/SessionStorageInterface.php

@@ -0,0 +1,153 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Session\Storage;
+
+use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
+
+/**
+ * StorageInterface.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Drak <drak@zikula.org>
+ *
+ * @api
+ */
+interface SessionStorageInterface
+{
+    /**
+     * Starts the session.
+     *
+     * @throws \RuntimeException If something goes wrong starting the session.
+     *
+     * @return bool True if started.
+     *
+     * @api
+     */
+    public function start();
+
+    /**
+     * Checks if the session is started.
+     *
+     * @return bool True if started, false otherwise.
+     */
+    public function isStarted();
+
+    /**
+     * Returns the session ID.
+     *
+     * @return string The session ID or empty.
+     *
+     * @api
+     */
+    public function getId();
+
+    /**
+     * Sets the session ID.
+     *
+     * @param string $id
+     *
+     * @api
+     */
+    public function setId($id);
+
+    /**
+     * Returns the session name.
+     *
+     * @return mixed The session name.
+     *
+     * @api
+     */
+    public function getName();
+
+    /**
+     * Sets the session name.
+     *
+     * @param string $name
+     *
+     * @api
+     */
+    public function setName($name);
+
+    /**
+     * Regenerates id that represents this storage.
+     *
+     * This method must invoke session_regenerate_id($destroy) unless
+     * this interface is used for a storage object designed for unit
+     * or functional testing where a real PHP session would interfere
+     * with testing.
+     *
+     * Note regenerate+destroy should not clear the session data in memory
+     * only delete the session data from persistent storage.
+     *
+     * Care: When regenerating the session ID no locking is involved in PHPs
+     * session design. See https://bugs.php.net/bug.php?id=61470 for a discussion.
+     * So you must make sure the regenerated session is saved BEFORE sending the
+     * headers with the new ID. Symfonys HttpKernel offers a listener for this.
+     * See Symfony\Component\HttpKernel\EventListener\SaveSessionListener.
+     * Otherwise session data could get lost again for concurrent requests with the
+     * new ID. One result could be that you get logged out after just logging in.
+     *
+     * @param bool $destroy  Destroy session when regenerating?
+     * @param int  $lifetime Sets the cookie lifetime for the session cookie. A null value
+     *                       will leave the system settings unchanged, 0 sets the cookie
+     *                       to expire with browser session. Time is in seconds, and is
+     *                       not a Unix timestamp.
+     *
+     * @return bool True if session regenerated, false if error
+     *
+     * @throws \RuntimeException If an error occurs while regenerating this storage
+     *
+     * @api
+     */
+    public function regenerate($destroy = false, $lifetime = null);
+
+    /**
+     * Force the session to be saved and closed.
+     *
+     * This method must invoke session_write_close() unless this interface is
+     * used for a storage object design for unit or functional testing where
+     * a real PHP session would interfere with testing, in which case it
+     * it should actually persist the session data if required.
+     *
+     * @throws \RuntimeException If the session is saved without being started, or if the session
+     *                           is already closed.
+     */
+    public function save();
+
+    /**
+     * Clear all session data in memory.
+     */
+    public function clear();
+
+    /**
+     * Gets a SessionBagInterface by name.
+     *
+     * @param string $name
+     *
+     * @return SessionBagInterface
+     *
+     * @throws \InvalidArgumentException If the bag does not exist
+     */
+    public function getBag($name);
+
+    /**
+     * Registers a SessionBagInterface for use.
+     *
+     * @param SessionBagInterface $bag
+     */
+    public function registerBag(SessionBagInterface $bag);
+
+    /**
+     * @return MetadataBag
+     */
+    public function getMetadataBag();
+}