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4c9426514c
MVFF and MVT support alignments down to FreelistMinimumAlignment. For MVFF and MVT, alignments that are too small are rounded up automatically, to make it easier to write portable programs. Copied from Perforce Change: 185369 ServerID: perforce.ravenbrook.com
96 lines
3.9 KiB
C
96 lines
3.9 KiB
C
/* freelist.h: FREE LIST ALLOCATOR INTERFACE
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*
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* $Id$
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* Copyright (c) 2013-2014 Ravenbrook Limited. See end of file for license.
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*
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* .source: <design/freelist/>.
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*/
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#ifndef freelist_h
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#define freelist_h
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#include "cbs.h"
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#include "mpmtypes.h"
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#include "range.h"
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#define FreelistSig ((Sig)0x519F6331) /* SIGnature FREEL */
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typedef struct FreelistStruct *Freelist;
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typedef union FreelistBlockUnion *FreelistBlock;
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/* See <design/freelist/#impl.grain.align> */
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#define FreelistMinimumAlignment ((Align)sizeof(FreelistBlock))
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typedef Bool (*FreelistIterateMethod)(Bool *deleteReturn, Range range,
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void *closureP, Size closureS);
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typedef struct FreelistStruct {
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Sig sig;
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Align alignment;
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FreelistBlock list;
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Count listSize;
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} FreelistStruct;
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extern Bool FreelistCheck(Freelist fl);
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extern Res FreelistInit(Freelist fl, Align alignment);
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extern void FreelistFinish(Freelist fl);
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extern Res FreelistInsert(Range rangeReturn, Freelist fl, Range range);
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extern Res FreelistDelete(Range rangeReturn, Freelist fl, Range range);
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extern Res FreelistDescribe(Freelist fl, mps_lib_FILE *stream);
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extern void FreelistIterate(Freelist abq, FreelistIterateMethod iterate,
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void *closureP, Size closureS);
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extern Bool FreelistFindFirst(Range rangeReturn, Range oldRangeReturn,
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Freelist fl, Size size, FindDelete findDelete);
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extern Bool FreelistFindLast(Range rangeReturn, Range oldRangeReturn,
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Freelist fl, Size size, FindDelete findDelete);
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extern Bool FreelistFindLargest(Range rangeReturn, Range oldRangeReturn,
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Freelist fl, Size size, FindDelete findDelete);
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extern void FreelistFlushToCBS(Freelist fl, CBS cbs);
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#endif /* freelist.h */
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (C) 2013-2014 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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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 distribution.
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*
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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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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, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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