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Publish minor changes to readme and configure files in main directory. Main directory and code directory licence texts are now fully updated. Copied from Perforce Change: 196994
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/* poolmfs.h: MANUAL FIXED SMALL UNIT POOL
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*
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* $Id$
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*
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* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
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*
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* The MFS pool is used to manage small fixed-size chunks of memory. It
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* stores control structures in the memory it manages, rather than to one
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* side. It therefore achieves better locality for small objects, but
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* wastes memory for large objects. It should not be used unless you are
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* packing a reasonable number of objects into an arena grain.
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*
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* Create and Init take the following arguments:
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*
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* Size extendBy
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*
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* extendBy is the default number of bytes reserved by the pool at a time.
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* A large size will make allocation cheaper but have a higher resource
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* overhead. A typical value might be 65536. See note 2.
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*
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* Size unitSize
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*
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* unitSize is the size in bytes of the objects you with to allocate. It
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* must be larger than the minimum unit size returned by GetInfo, and not
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* larger than extendBy.
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*/
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#ifndef poolmfs_h
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#define poolmfs_h
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#include "mpm.h"
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#include "mpscmfs.h"
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typedef struct MFSStruct *MFS;
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typedef MFS MFSPool;
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DECLARE_CLASS(Pool, MFSPool, AbstractPool);
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#define MFSPool(mfs) (&(mfs)->poolStruct)
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extern PoolClass PoolClassMFS(void);
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extern Bool MFSCheck(MFS mfs);
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extern const struct mps_key_s _mps_key_MFSExtendSelf;
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#define MFSExtendSelf (&_mps_key_MFSExtendSelf)
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#define MFSExtendSelf_FIELD b
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extern void MFSExtend(Pool pool, Addr base, Addr limit);
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typedef void MFSExtentVisitor(Pool pool, Addr base, Size size,
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void *closure);
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extern void MFSFinishExtents(Pool pool, MFSExtentVisitor visitor,
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void *closure);
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#endif /* poolmfs_h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2001-2020 Ravenbrook Limited <http://www.ravenbrook.com/>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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