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 MongoDB, Inc. For further information, see the licensing section in the documentation.