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This change will be integrated but ignored (-ay) to the gg-epcore/union sources, so that they retain HopeNames. Copied from Perforce Change: 24911 ServerID: perforce.ravenbrook.com
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* impl.h.chain: GENERATION CHAINS
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*
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* $Id$
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* Copyright (c) 2001 Ravenbrook Limited.
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*/
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#ifndef chain_h
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#define chain_h
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#include "mpmtypes.h"
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#include "ring.h"
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/* GenParamStruct -- structure for specifying generation parameters */
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/* .gen-param: This structure must match impl.h.mps.gen-param. */
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typedef struct GenParamStruct {
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Size capacity; /* capacity in kB */
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double mortality;
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} GenParamStruct;
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/* GenDesc -- descriptor of a generation in a chain */
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typedef struct GenDescStruct *GenDesc;
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#define GenDescSig ((Sig)0x5199E4DE) /* SIGnature GEN DEsc */
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typedef struct GenDescStruct {
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Sig sig;
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ZoneSet zones; /* zoneset for this generation */
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Size capacity; /* capacity in kB */
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double mortality;
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double proflow; /* predicted proportion of survivors promoted */
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RingStruct locusRing; /* this generation in all the pools using the chain */
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} GenDescStruct;
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/* PoolGen -- descriptor of a generation in a pool */
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typedef struct PoolGenStruct *PoolGen;
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#define PoolGenSig ((Sig)0x519B009E) /* SIGnature POOl GEn */
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typedef struct PoolGenStruct {
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Sig sig;
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Serial nr; /* generation number */
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Pool pool; /* pool this belongs to */
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Chain chain; /* chain this belongs to */
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RingStruct genRing; /* this generation in all the pools using this chain */
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Size totalSize; /* total size of segs in gen in this pool */
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Size newSize; /* size allocated since last GC */
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} PoolGenStruct;
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/* Chain -- a generation chain */
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#define ChainSig ((Sig)0x519C8A14) /* SIGnature CHAIN */
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typedef struct ChainStruct {
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Sig sig;
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Arena arena;
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RingStruct chainRing; /* list of chains in the arena */
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TraceSet activeTraces; /* set of traces collecting this chain */
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size_t genCount; /* number of generations */
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GenDescStruct *gens; /* the array of generations */
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} ChainStruct;
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extern Res ChainCreate(Chain *chainReturn, Arena arena, size_t genCount,
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GenParamStruct *params);
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extern void ChainDestroy(Chain chain);
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extern Bool ChainCheck(Chain chain);
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extern double ChainDeferral(Chain chain);
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extern Res ChainCondemnAuto(double *mortalityReturn, Chain chain, Trace trace);
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extern Res ChainCondemnAll(Chain chain, Trace trace);
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extern void ChainStartGC(Chain chain, Trace trace);
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extern void ChainEndGC(Chain chain, Trace trace);
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extern size_t ChainGens(Chain chain);
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extern Bool PoolGenCheck(PoolGen gen);
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extern Res PoolGenInit(PoolGen gen, Chain chain, Serial nr, Pool pool);
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extern void PoolGenFinish(PoolGen gen);
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extern void PoolGenFlip(PoolGen gen);
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#define PoolGenNr(gen) ((gen)->nr)
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extern void PoolGenUpdateZones(PoolGen gen, Seg seg);
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#endif /* chain_h */
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