Memory Pool System Kit Open Source License

This is the license under which the Memory Pool System Kit is available as open source.

It is not the only way the MPS is licensed.

If the licensing terms aren't suitable for you (for example, you're developing a closed-source commercial product or a compiler run-time system) you can easily license the MPS under different terms from Ravenbrook. Please write to us at mailto:mps-questions@ravenbrook.com for more information.

The open source license for the MPS is the Sleepycat License also known as the "Berkeley Database License". This license is GPL compatible and OSI approved. The MPS is "multi licensed" in a manner similar to MySQL.

License

Copyright © 2001–2013 Ravenbrook Limited. All rights reserved. This is the open source license for the Memory Pool System, but it is not the only one. Contact Ravenbrook at mailto:mps-questions@ravenbrook.com if you would like a different license.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  3. Redistributions in any form must be accompanied by information on how to obtain complete source code for this software and any accompanying software that uses this software. The source code must either be included in the distribution or be available for no more than the cost of distribution plus a nominal fee, and must be freely redistributable under reasonable conditions. For an executable file, complete source code means the source code for all modules it contains. It does not include source code for modules or files that typically accompany the major components of the operating system on which the executable file runs.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Exceptions

Open Dylan

Software that makes use of the Memory Pool System only via the Dylan programming language using the Open Dylan implementation and any accompanying software is exempt from clause 3 of the license, provided that the Dylan program is not providing memory management services. For the avoidance of doubt, this exemption does not apply to software directly using a copy of the Memory Pool System received as part of the Open Dylan source code.