Definitions

.def.outer-structure: The "outer structure" (of a pool) is a C object of type PoolXXXStruct or the type struct PoolXXXStruct itself.

.def.generic-structure: The "generic structure" is a C object of type PoolStruct (found embedded in the outer-structure) or the type struct PoolStruct itself.

Defaults

.align: When initialised, the pool gets the default alignment (ARCH_ALIGN).

.no: If a pool class doesn't implement a method, and doesn't expect it to be called, it should use a non-method (PoolNo*) which will cause an assertion failure if they are reached.

.triv: If a pool class supports a protocol but does not require any more than a trivial implementation, it should use a trivial method (PoolTriv*) which will do the trivial thing.

.outer-structure.sig: It is good practice to put the signature for the outer structure at the end (of the structure). This is because there's already one at the beginning (in the poolStruct) so putting it at the end gives some extra fencepost checking.

Requirements

.req.fix: PoolFix() must be fast.

Other

Interface in mpm.h Types in mpmst.h See also design.mps.poolclass

Document History

• 1996-07-31 richard incomplete doc
• 2002-06-07 RB Converted from MMInfo database design document.
• 2013-05-23 GDR Converted to reStructuredText.

Copyright and License

Copyright © 2013-2014 Ravenbrook Limited. All rights reserved. <http://www.ravenbrook.com/>. This is an open source license. Contact Ravenbrook for commercial licensing options.

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.