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This was achieved by partially undoing changelist 24817, including an accidental corruption of eventgen.pl. Copied from Perforce Change: 24877 ServerID: perforce.ravenbrook.com
115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/* impl.h.cbs: CBS -- Coalescing Block Structure
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*
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* $Id$
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* $HopeName: MMsrc!cbs.h(trunk.4) $
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* Copyright (c) 2001 Ravenbrook Limited.
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*
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* .source: design.mps.cbs.
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*/
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#ifndef cbs_h
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#define cbs_h
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#include "meter.h"
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#include "splay.h"
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#include "mpmtypes.h"
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typedef struct CBSStruct *CBS;
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typedef struct CBSBlockStruct *CBSBlock;
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typedef void (*CBSChangeSizeMethod)(CBS cbs, CBSBlock block,
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Size oldSize, Size newSize);
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typedef Bool (*CBSIterateMethod)(CBS cbs, CBSBlock block, void *closureP);
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/* See design.mps.cbs.impl.low-mem.inline.block */
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typedef void **CBSEmergencyBlock; /* next, limit */
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/* See design.mps.cbs.impl.low-mem.inline.block */
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typedef void **CBSEmergencyGrain; /* next */
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#define CBSSig ((Sig)0x519CB599) /* SIGnature CBS */
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typedef struct CBSStruct {
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SplayTreeStruct splayTree;
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Count splayTreeSize;
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Pool blockPool;
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CBSChangeSizeMethod new;
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CBSChangeSizeMethod delete;
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CBSChangeSizeMethod grow;
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CBSChangeSizeMethod shrink;
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Size minSize;
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Align alignment;
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Bool mayUseInline;
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Bool fastFind;
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Bool inCBS; /* prevent reentrance */
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CBSEmergencyBlock emergencyBlockList;
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Count eblSize;
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CBSEmergencyGrain emergencyGrainList;
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Count eglSize;
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/* meters for sizes of search structures at each op */
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METER_DECL(splaySearch);
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METER_DECL(eblSearch);
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METER_DECL(eglSearch);
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Sig sig; /* sig at end because embeded */
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} CBSStruct;
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typedef struct CBSBlockStruct {
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SplayNodeStruct splayNode;
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Addr base;
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Addr limit;
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Size maxSize; /* accurate maximum block size of sub-tree */
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} CBSBlockStruct;
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extern Bool CBSCheck(CBS cbs);
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extern Bool CBSBlockCheck(CBSBlock block);
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extern Res CBSInit(Arena arena, CBS cbs, void *owner,
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CBSChangeSizeMethod new,
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CBSChangeSizeMethod delete,
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CBSChangeSizeMethod grow,
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CBSChangeSizeMethod shrink,
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Size minSize,
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Align alignment,
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Bool mayUseInline,
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Bool fastFind);
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extern void CBSFinish(CBS cbs);
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extern Res CBSInsert(CBS cbs, Addr base, Addr limit);
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extern Res CBSInsertReturningRange(Addr *baseReturn, Addr *limitReturn,
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CBS cbs, Addr base, Addr limit);
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extern Res CBSDelete(CBS cbs, Addr base, Addr limit);
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extern void CBSIterate(CBS cbs, CBSIterateMethod iterate, void *closureP);
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extern void CBSIterateLarge(CBS cbs, CBSIterateMethod iterate, void *closureP);
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extern void CBSSetMinSize(CBS cbs, Size minSize);
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extern Res CBSDescribe(CBS cbs, mps_lib_FILE *stream);
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extern Res CBSBlockDescribe(CBSBlock block, mps_lib_FILE *stream);
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/* CBSBlockBase -- See design.mps.cbs.function.cbs.block.base */
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#define CBSBlockBase(block) ((block)->base)
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/* CBSBlockLimit -- See design.mps.cbs.function.cbs.block.limit */
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#define CBSBlockLimit(block) ((block)->limit)
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#define CBSBlockSize(block) AddrOffset((block)->base, (block)->limit)
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extern Size (CBSBlockSize)(CBSBlock block);
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typedef unsigned CBSFindDelete;
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enum {
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CBSFindDeleteNONE = 1,/* don't delete after finding */
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CBSFindDeleteLOW, /* delete precise size from low end */
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CBSFindDeleteHIGH, /* delete precise size from high end */
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CBSFindDeleteENTIRE /* delete entire range */
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};
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extern Bool CBSFindFirst(Addr *baseReturn, Addr *limitReturn,
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CBS cbs, Size size, CBSFindDelete findDelete);
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extern Bool CBSFindLast(Addr *baseReturn, Addr *limitReturn,
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CBS cbs, Size size, CBSFindDelete findDelete);
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extern Bool CBSFindLargest(Addr *baseReturn, Addr *limitReturn,
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CBS cbs, CBSFindDelete findDelete);
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#endif /* cbs_h */
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