Copyright (c) 2014-present MongoDB, Inc. Copyright (c) 2008-2014 WiredTiger, Inc. All rights reserved. This program is free software: you can redistribute it and/or modify it under the terms of either version 2 or version 3 of the GNU General Public License as published by the Free Software Foundation. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. For a license to use the WiredTiger software under conditions other than those described by the GNU General Public License, or for technical support for this software, contact WiredTiger, Inc. at info@wiredtiger.com. For further information, see the licensing section in the documentation.