1080 lines
25 KiB
C
1080 lines
25 KiB
C
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/*************************************************************************
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* *
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* YAP Prolog %W% %G%
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
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* *
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**************************************************************************
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* *
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* File: YAtom.h.m4 *
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* Last rev: 19/2/88 *
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* mods: *
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* comments: atom properties header file for YAP *
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* *
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*************************************************************************/
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/* This code can only be defined *after* including Regs.h!!! */
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#if USE_OFFSETS
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inline EXTERN Atom AbsAtom(AtomEntry * p);
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inline EXTERN Atom AbsAtom(AtomEntry * p)
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{
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return (Atom) (Addr(p) - AtomBase);
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}
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inline EXTERN AtomEntry * RepAtom(Atom a);
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inline EXTERN AtomEntry * RepAtom(Atom a)
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{
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return (AtomEntry *) (AtomBase + Unsigned(a));
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}
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#else
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inline EXTERN Atom AbsAtom(AtomEntry * p);
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inline EXTERN Atom AbsAtom(AtomEntry * p)
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{
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return (Atom) (p);
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}
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inline EXTERN AtomEntry * RepAtom(Atom a);
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inline EXTERN AtomEntry * RepAtom(Atom a)
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{
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return (AtomEntry *) (a);
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}
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#endif
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN Prop AbsProp(PropEntry * p);
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inline EXTERN Prop AbsProp(PropEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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inline EXTERN PropEntry * RepProp(Prop p);
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inline EXTERN PropEntry * RepProp(Prop p)
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{
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return (PropEntry *) (AtomBase+Unsigned(p));
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}
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#else
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inline EXTERN Prop AbsProp(PropEntry * p);
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inline EXTERN Prop AbsProp(PropEntry * p)
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{
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return (Prop) (p);
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}
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inline EXTERN PropEntry * RepProp(Prop p);
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inline EXTERN PropEntry * RepProp(Prop p)
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{
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return (PropEntry *) (p);
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}
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#endif
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN FunctorEntry * RepFunctorProp(Prop p);
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inline EXTERN FunctorEntry * RepFunctorProp(Prop p)
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{
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return (FunctorEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsFunctorProp(FunctorEntry * p);
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inline EXTERN Prop AbsFunctorProp(FunctorEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN FunctorEntry * RepFunctorProp(Prop p);
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inline EXTERN FunctorEntry * RepFunctorProp(Prop p)
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{
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return (FunctorEntry *) (p);
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}
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inline EXTERN Prop AbsFunctorProp(FunctorEntry * p);
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inline EXTERN Prop AbsFunctorProp(FunctorEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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inline EXTERN Int ArityOfFunctor(Functor);
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inline EXTERN Int ArityOfFunctor(Functor Fun)
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{
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return (Int) (((FunctorEntry *)Fun)->ArityOfFE);
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}
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inline EXTERN Atom NameOfFunctor(Functor);
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inline EXTERN Atom NameOfFunctor(Functor Fun)
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{
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return (Atom) (((FunctorEntry *)Fun)->NameOfFE);
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}
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inline EXTERN PropFlags IsFunctorProperty(int);
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inline EXTERN PropFlags IsFunctorProperty(int flags)
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{
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return (PropFlags) ((flags == FunctorProperty) );
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}
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/* summary of property codes used
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00 00 predicate entry
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80 00 db property
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bb 00 functor entry
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ff df sparse functor
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ff ex arithmetic property
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ff f7 array
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ff fa module property
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ff fb blackboard property
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ff fc value property
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ff ff op property
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*/
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/* Module property */
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typedef struct {
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Prop NextOfPE; /* used to chain properties */
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PropFlags KindOfPE; /* kind of property */
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SMALLUNSGN IndexOfMod; /* indec in module table */
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} ModEntry;
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN ModEntry * RepModProp(Prop p);
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inline EXTERN ModEntry * RepModProp(Prop p)
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{
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return (ModEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsModProp(ModEntry * p);
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inline EXTERN Prop AbsModProp(ModEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN ModEntry * RepModProp(Prop p);
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inline EXTERN ModEntry * RepModProp(Prop p)
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{
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return (ModEntry *) (p);
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}
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inline EXTERN Prop AbsModProp(ModEntry * p);
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inline EXTERN Prop AbsModProp(ModEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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#define ModProperty ((PropFlags)0xfffa)
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inline EXTERN PropFlags IsModProperty(int);
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inline EXTERN PropFlags IsModProperty(int flags)
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{
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return (PropFlags) ((flags == ModProperty));
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}
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/* operator property entry structure */
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typedef struct {
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Prop NextOfPE; /* used to chain properties */
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PropFlags KindOfPE; /* kind of property */
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#if defined(YAPOR) || defined(THREADS)
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rwlock_t OpRWLock; /* a read-write lock to protect the entry */
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#endif
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BITS16 Prefix, Infix, Posfix; /* precedences */
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} OpEntry;
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN OpEntry * RepOpProp(Prop p);
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inline EXTERN OpEntry * RepOpProp(Prop p)
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{
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return (OpEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsOpProp(OpEntry * p);
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inline EXTERN Prop AbsOpProp(OpEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN OpEntry * RepOpProp(Prop p);
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inline EXTERN OpEntry * RepOpProp(Prop p)
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{
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return (OpEntry *) (p);
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}
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inline EXTERN Prop AbsOpProp(OpEntry * p);
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inline EXTERN Prop AbsOpProp(OpEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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#define OpProperty ((PropFlags)0xffff)
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inline EXTERN PropFlags IsOpProperty(int);
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inline EXTERN PropFlags IsOpProperty(int flags)
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{
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return (PropFlags) ((flags == OpProperty) );
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}
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/* defines related to operator specifications */
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#define MaskPrio 0x0fff
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#define DcrlpFlag 0x1000
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#define DcrrpFlag 0x2000
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typedef union arith_ret *eval_ret;
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/* expression property entry structure */
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typedef struct {
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Prop NextOfPE; /* used to chain properties */
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PropFlags KindOfPE; /* kind of property */
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unsigned int ArityOfEE;
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BITS16 ENoOfEE;
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BITS16 FlagsOfEE;
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/* operations that implement the expression */
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union {
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blob_type (*constant)(eval_ret);
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blob_type (*unary)(Term, eval_ret);
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blob_type (*binary)(Term, Term, eval_ret);
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} FOfEE;
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} ExpEntry;
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN ExpEntry * RepExpProp(Prop p);
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inline EXTERN ExpEntry * RepExpProp(Prop p)
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{
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return (ExpEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsExpProp(ExpEntry * p);
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inline EXTERN Prop AbsExpProp(ExpEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN ExpEntry * RepExpProp(Prop p);
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inline EXTERN ExpEntry * RepExpProp(Prop p)
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{
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return (ExpEntry *) (p);
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}
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inline EXTERN Prop AbsExpProp(ExpEntry * p);
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inline EXTERN Prop AbsExpProp(ExpEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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#define ExpProperty 0xffe0
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/* only unary and binary expressions are acceptable */
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inline EXTERN PropFlags IsExpProperty(int);
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inline EXTERN PropFlags IsExpProperty(int flags)
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{
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return (PropFlags) ((flags == ExpProperty) );
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}
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/* value property entry structure */
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typedef struct {
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Prop NextOfPE; /* used to chain properties */
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PropFlags KindOfPE; /* kind of property */
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#if defined(YAPOR) || defined(THREADS)
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rwlock_t VRWLock; /* a read-write lock to protect the entry */
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#endif
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Term ValueOfVE; /* (atomic) value associated with the atom */
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} ValEntry;
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN ValEntry * RepValProp(Prop p);
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inline EXTERN ValEntry * RepValProp(Prop p)
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{
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return (ValEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsValProp(ValEntry * p);
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inline EXTERN Prop AbsValProp(ValEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN ValEntry * RepValProp(Prop p);
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inline EXTERN ValEntry * RepValProp(Prop p)
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{
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return (ValEntry *) (p);
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}
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inline EXTERN Prop AbsValProp(ValEntry * p);
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inline EXTERN Prop AbsValProp(ValEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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#define ValProperty ((PropFlags)0xfffc)
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inline EXTERN PropFlags IsValProperty(int);
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inline EXTERN PropFlags IsValProperty(int flags)
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{
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return (PropFlags) ((flags == ValProperty) );
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}
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/* predicate property entry structure */
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/* AsmPreds are things like var, nonvar, atom ...which are implemented
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through dedicated machine instructions. In this case the 8 lower
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bits of PredFlags are used to hold the machine instruction code
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for the pred.
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C_Preds are things write, read, ... implemented in C. In this case
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CodeOfPred holds the address of the correspondent C-function.
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*/
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typedef enum {
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CArgsPredFlag = 0x1000000L, /* ! should ! across */
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CutTransparentPredFlag = 0x800000L, /* ! should ! across */
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SourcePredFlag = 0x400000L, /* static predicate with source declaration */
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MetaPredFlag = 0x200000L, /* predicate subject to a meta declaration */
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SyncPredFlag = 0x100000L, /* has to synch before it can execute*/
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UserCPredFlag = 0x080000L, /* CPred defined by the user */
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MultiFileFlag = 0x040000L, /* is multi-file */
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FastPredFlag = 0x020000L, /* is "compiled" */
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TestPredFlag = 0x010000L, /* is a test (optim. comit) */
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AsmPredFlag = 0x008000L, /* inline */
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StandardPredFlag= 0x004000L, /* system predicate */
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DynamicPredFlag= 0x002000L, /* dynamic predicate */
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CPredFlag = 0x001000L, /* written in C */
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SafePredFlag = 0x000800L, /* does not alter arguments */
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CompiledPredFlag= 0x000400L, /* is static */
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IndexedPredFlag= 0x000200L, /* has indexing code */
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SpiedPredFlag = 0x000100L, /* is a spy point */
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BinaryTestPredFlag=0x000080L, /* test predicate. */
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#ifdef TABLING
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TabledPredFlag = 0x000040L, /* is tabled */
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#endif /* TABLING */
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#ifdef YAPOR
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SequentialPredFlag=0x000020L, /* may not create par. choice points!*/
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#endif /* YAPOR */
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ProfiledPredFlag = 0x000010L, /* pred is being profiled */
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LogUpdatePredFlag= 0x000008L /* dynamic predicate with log. upd. sem.*/
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} pred_flag;
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/* profile data */
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typedef struct {
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#if defined(YAPOR) || defined(THREADS)
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lockvar lock; /* a simple lock to protect this entry */
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#endif
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Int NOfEntries; /* nbr of times head unification succeeded*/
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Int NOfHeadSuccesses; /* nbr of times head unification succeeded*/
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Int NOfRetries; /* nbr of times a clause for the pred
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was retried */
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} profile_data;
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typedef struct pred_entry {
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Prop NextOfPE; /* used to chain properties */
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PropFlags KindOfPE; /* kind of property */
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unsigned int ArityOfPE; /* arity of property */
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CELL PredFlags;
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CODEADDR CodeOfPred; /* code address */
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CODEADDR TrueCodeOfPred; /* if needing to spy or to lock */
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Functor FunctorOfPred; /* functor for Predicate */
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CODEADDR FirstClause, LastClause;
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Atom OwnerFile; /* File where the predicate was defined */
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struct pred_entry *NextPredOfModule; /* next pred for same module */
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#if defined(YAPOR) || defined(THREADS)
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rwlock_t PRWLock; /* a simple lock to protect this entry */
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#endif
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#ifdef TABLING
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tab_ent_ptr TableOfPred;
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#endif /* TABLING */
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SMALLUNSGN ModuleOfPred; /* module for this definition */
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OPCODE OpcodeOfPred; /* undefcode, indexcode, spycode, .... */
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profile_data StatisticsForPred; /* enable profiling for predicate */
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SMALLUNSGN StateOfPred; /* actual state of predicate */
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} PredEntry;
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#define PEProp ((PropFlags)(0x0000))
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#if USE_OFFSETS_IN_PROPS
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inline EXTERN PredEntry * RepPredProp(Prop p);
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inline EXTERN PredEntry * RepPredProp(Prop p)
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{
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return (PredEntry *) (AtomBase + Unsigned(p));
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}
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inline EXTERN Prop AbsPredProp(PredEntry * p);
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inline EXTERN Prop AbsPredProp(PredEntry * p)
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{
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return (Prop) (Addr(p)-AtomBase);
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}
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#else
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inline EXTERN PredEntry * RepPredProp(Prop p);
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inline EXTERN PredEntry * RepPredProp(Prop p)
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{
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return (PredEntry *) (p);
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}
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inline EXTERN Prop AbsPredProp(PredEntry * p);
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inline EXTERN Prop AbsPredProp(PredEntry * p)
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{
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return (Prop) (p);
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}
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#endif
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inline EXTERN PropFlags IsPredProperty(int);
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inline EXTERN PropFlags IsPredProperty(int flags)
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{
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return (PropFlags) ((flags == PEProp) );
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}
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/********* maximum number of C-written predicates and cmp funcs ******************/
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#define MAX_C_PREDS 360
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#define MAX_CMP_FUNCS 20
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typedef struct {
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PredEntry *p;
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CmpPredicate f;
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} cmp_entry;
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extern CPredicate c_predicates[MAX_C_PREDS];
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extern cmp_entry cmp_funcs[MAX_CMP_FUNCS];
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/* Flags for code or dbase entry */
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/* There are several flags for code and data base entries */
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typedef enum {
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GcFoundMask = 0x10000, /* informs this is a dynamic predicate */
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DynamicMask = 0x8000, /* informs this is a dynamic predicate */
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InUseMask = 0x4000, /* informs this block is being used */
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ErasedMask = 0x2000, /* informs this block has been erased */
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IndexMask = 0x1000, /* informs this is indexing code */
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DBClMask = 0x0800, /* informs this is a data base structure */
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LogUpdRuleMask= 0x0400, /* informs the code is for a log upd rule with env */
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LogUpdMask = 0x0200, /* informs this is a logic update index. */
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StaticMask = 0x0100, /* dealing with static predicates */
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SpiedMask = 0x0080 /* this predicate is being spied */
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/* other flags belong to DB */
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} dbentry_flags;
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/* *********************** DBrefs **************************************/
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#define KEEP_ENTRY_AGE 1
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typedef struct DB_STRUCT {
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Functor id; /* allow pointers to this struct to id */
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/* as dbref */
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Term EntryTerm; /* cell bound to itself */
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SMALLUNSGN Flags; /* Term Flags */
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SMALLUNSGN NOfRefsTo; /* Number of references pointing here */
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struct struct_dbentry *Parent; /* key of DBase reference */
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CODEADDR Code; /* pointer to code if this is a clause */
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struct DB_STRUCT **DBRefs; /* pointer to other references */
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struct DB_STRUCT *Prev; /* Previous element in chain */
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struct DB_STRUCT *Next; /* Next element in chain */
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#if defined(YAPOR) || defined(THREADS)
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lockvar lock; /* a simple lock to protect this entry */
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Int ref_count; /* how many branches are using this entry */
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#endif
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#ifdef KEEP_ENTRY_AGE
|
|
Int age; /* entry's age, negative if from recorda,
|
|
positive if it was recordz */
|
|
#endif /* KEEP_ENTRY_AGE */
|
|
#ifdef COROUTINING
|
|
CELL attachments; /* attached terms */
|
|
#endif
|
|
CELL Mask; /* parts that should be cleared */
|
|
CELL Key; /* A mask that can be used to check before
|
|
you unify */
|
|
CELL NOfCells; /* Size of Term */
|
|
CELL Entry; /* entry point */
|
|
Term Contents[MIN_ARRAY]; /* stored term */
|
|
} DBStruct;
|
|
|
|
#define DBStructFlagsToDBStruct(X) ((DBRef)((X) - (CELL) &(((DBRef) NIL)->Flags)))
|
|
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
#define INIT_DBREF_COUNT(X) (X)->ref_count = 0
|
|
#define INC_DBREF_COUNT(X) (X)->ref_count++
|
|
#define DEC_DBREF_COUNT(X) (X)->ref_count--
|
|
#define DBREF_IN_USE(X) ((X)->ref_count != 0)
|
|
#else
|
|
#define INIT_DBREF_COUNT(X)
|
|
#define INC_DBREF_COUNT(X)
|
|
#define DEC_DBREF_COUNT(X)
|
|
#define DBREF_IN_USE(X) ((X)->Flags & InUseMask)
|
|
#endif
|
|
|
|
typedef DBStruct *DBRef;
|
|
|
|
/* extern Functor FunctorDBRef; */
|
|
|
|
inline EXTERN int IsDBRefTerm(Term);
|
|
|
|
inline EXTERN int IsDBRefTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorDBRef);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Term MkDBRefTerm(DBRef);
|
|
|
|
inline EXTERN Term MkDBRefTerm(DBRef p)
|
|
{
|
|
return (Term) ((AbsAppl(((CELL *)(p)))));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN DBRef DBRefOfTerm(Term t);
|
|
|
|
inline EXTERN DBRef DBRefOfTerm(Term t)
|
|
{
|
|
return (DBRef) (((DBRef)(RepAppl(t))));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN int IsRefTerm(Term);
|
|
|
|
inline EXTERN int IsRefTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorDBRef);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN CODEADDR RefOfTerm(Term t);
|
|
|
|
inline EXTERN CODEADDR RefOfTerm(Term t)
|
|
{
|
|
return (CODEADDR) (DBRefOfTerm(t));
|
|
}
|
|
|
|
|
|
|
|
typedef struct struct_dbentry {
|
|
Prop NextOfPE; /* used to chain properties */
|
|
PropFlags KindOfPE; /* kind of property */
|
|
unsigned int ArityOfDB; /* kind of property */
|
|
Functor FunctorOfDB; /* functor for this property */
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
rwlock_t DBRWLock; /* a simple lock to protect this entry */
|
|
#endif
|
|
DBRef First; /* first DBase entry */
|
|
DBRef Last; /* last DBase entry */
|
|
SMALLUNSGN ModuleOfDB; /* module for this definition */
|
|
#ifdef KEEP_ENTRY_AGE
|
|
Int age; /* age counter */
|
|
#else
|
|
DBRef FirstNEr; /* first non-erased DBase entry */
|
|
#endif /* KEEP_ENTRY_AGE */
|
|
} DBEntry;
|
|
typedef DBEntry *DBProp;
|
|
#define DBProperty ((PropFlags)0x8000)
|
|
|
|
typedef struct {
|
|
Prop NextOfPE; /* used to chain properties */
|
|
PropFlags KindOfPE; /* kind of property */
|
|
unsigned int ArityOfDB; /* kind of property */
|
|
Functor FunctorOfDB; /* functor for this property */
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
rwlock_t DBRWLock; /* a simple lock to protect this entry */
|
|
#endif
|
|
DBRef First; /* first DBase entry */
|
|
DBRef Last; /* last DBase entry */
|
|
SMALLUNSGN ModuleOfDB; /* module for this definition */
|
|
Int NOfEntries; /* age counter */
|
|
DBRef Index; /* age counter */
|
|
} LogUpdDBEntry;
|
|
typedef LogUpdDBEntry *LogUpdDBProp;
|
|
#define LogUpdDBBit 0x1
|
|
#define CodeDBBit 0x2
|
|
|
|
#define LogUpdDBProperty ((PropFlags)(0x8000|LogUpdDBBit))
|
|
#define CodeLogUpdDBProperty (DBProperty|LogUpdDBBit|CodeDBBit)
|
|
#define CodeDBProperty (DBProperty|CodeDBBit)
|
|
|
|
|
|
inline EXTERN PropFlags IsDBProperty(int);
|
|
|
|
inline EXTERN PropFlags IsDBProperty(int flags)
|
|
{
|
|
return (PropFlags) (((flags & ~(LogUpdDBBit|CodeDBBit)) == DBProperty) );
|
|
}
|
|
|
|
|
|
|
|
#if USE_OFFSETS_IN_PROPS
|
|
|
|
inline EXTERN DBProp RepDBProp(Prop p);
|
|
|
|
inline EXTERN DBProp RepDBProp(Prop p)
|
|
{
|
|
return (DBProp) (AtomBase + Unsigned(p));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsDBProp(DBProp p);
|
|
|
|
inline EXTERN Prop AbsDBProp(DBProp p)
|
|
{
|
|
return (Prop) (Addr(p)-AtomBase);
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
inline EXTERN DBProp RepDBProp(Prop p);
|
|
|
|
inline EXTERN DBProp RepDBProp(Prop p)
|
|
{
|
|
return (DBProp) (p);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsDBProp(DBProp p);
|
|
|
|
inline EXTERN Prop AbsDBProp(DBProp p)
|
|
{
|
|
return (Prop) (p);
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
/* These are the actual flags for DataBase terms */
|
|
typedef enum {
|
|
DBAtomic = 0x1,
|
|
DBVar = 0x2,
|
|
DBNoVars = 0x4,
|
|
DBComplex = 0x8,
|
|
DBCode = 0x10,
|
|
DBNoCode = 0x20,
|
|
DBWithRefs = 0x40
|
|
} db_term_flags;
|
|
|
|
#define MaxModules 256
|
|
|
|
typedef struct {
|
|
Prop NextOfPE; /* used to chain properties */
|
|
PropFlags KindOfPE; /* kind of property */
|
|
Atom KeyOfBB; /* functor for this property */
|
|
DBRef Element; /* blackboard element */
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
rwlock_t BBRWLock; /* a read-write lock to protect the entry */
|
|
#endif
|
|
SMALLUNSGN ModuleOfBB; /* module for this definition */
|
|
} BlackBoardEntry;
|
|
typedef BlackBoardEntry *BBProp;
|
|
|
|
#if USE_OFFSETS_IN_PROPS
|
|
|
|
inline EXTERN BlackBoardEntry * RepBBProp(Prop p);
|
|
|
|
inline EXTERN BlackBoardEntry * RepBBProp(Prop p)
|
|
{
|
|
return (BlackBoardEntry *) (AtomBase + Unsigned(p));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsBBProp(BlackBoardEntry * p);
|
|
|
|
inline EXTERN Prop AbsBBProp(BlackBoardEntry * p)
|
|
{
|
|
return (Prop) (Addr(p)-AtomBase);
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
inline EXTERN BlackBoardEntry * RepBBProp(Prop p);
|
|
|
|
inline EXTERN BlackBoardEntry * RepBBProp(Prop p)
|
|
{
|
|
return (BlackBoardEntry *) (p);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsBBProp(BlackBoardEntry * p);
|
|
|
|
inline EXTERN Prop AbsBBProp(BlackBoardEntry * p)
|
|
{
|
|
return (Prop) (p);
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
#define BBProperty ((PropFlags)0xfffb)
|
|
|
|
|
|
inline EXTERN PropFlags IsBBProperty(int);
|
|
|
|
inline EXTERN PropFlags IsBBProperty(int flags)
|
|
{
|
|
return (PropFlags) ((flags == BBProperty));
|
|
}
|
|
|
|
|
|
|
|
|
|
/* array property entry structure */
|
|
/* first case is for dynamic arrays */
|
|
typedef struct array_entry {
|
|
Prop NextOfPE; /* used to chain properties */
|
|
PropFlags KindOfPE; /* kind of property */
|
|
Int ArrayEArity; /* Arity of Array (positive) */
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
rwlock_t ArRWLock; /* a read-write lock to protect the entry */
|
|
#endif
|
|
struct array_entry *NextArrayE; /* Pointer to the actual array */
|
|
Term ValueOfVE; /* Pointer to the actual array */
|
|
} ArrayEntry;
|
|
|
|
/* second case is for static arrays */
|
|
|
|
/* first, the valid types */
|
|
typedef enum {
|
|
array_of_ints,
|
|
array_of_chars,
|
|
array_of_uchars,
|
|
array_of_doubles,
|
|
array_of_ptrs,
|
|
array_of_atoms,
|
|
array_of_dbrefs,
|
|
array_of_terms
|
|
} static_array_types;
|
|
|
|
typedef union {
|
|
Int *ints;
|
|
char *chars;
|
|
unsigned char *uchars;
|
|
Float *floats;
|
|
AtomEntry **ptrs;
|
|
Term *atoms;
|
|
Term *dbrefs;
|
|
DBRef *terms;
|
|
} statarray_elements;
|
|
|
|
/* next, the actual data structure */
|
|
typedef struct {
|
|
Prop NextOfPE; /* used to chain properties */
|
|
PropFlags KindOfPE; /* kind of property */
|
|
Int ArrayEArity; /* Arity of Array (negative) */
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
rwlock_t ArRWLock; /* a read-write lock to protect the entry */
|
|
#endif
|
|
static_array_types ArrayType; /* Type of Array Elements. */
|
|
statarray_elements ValueOfVE; /* Pointer to the Array itself */
|
|
} StaticArrayEntry;
|
|
|
|
|
|
#if USE_OFFSETS_IN_PROPS
|
|
|
|
inline EXTERN ArrayEntry * RepArrayProp(Prop p);
|
|
|
|
inline EXTERN ArrayEntry * RepArrayProp(Prop p)
|
|
{
|
|
return (ArrayEntry *) (AtomBase + Unsigned(p));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsArrayProp(ArrayEntry * p);
|
|
|
|
inline EXTERN Prop AbsArrayProp(ArrayEntry * p)
|
|
{
|
|
return (Prop) (Addr(p)-AtomBase);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN StaticArrayEntry * RepStaticArrayProp(Prop p);
|
|
|
|
inline EXTERN StaticArrayEntry * RepStaticArrayProp(Prop p)
|
|
{
|
|
return (StaticArrayEntry *) (AtomBase + Unsigned(p));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsStaticArrayProp(StaticArrayEntry * p);
|
|
|
|
inline EXTERN Prop AbsStaticArrayProp(StaticArrayEntry * p)
|
|
{
|
|
return (Prop) (Addr(p)-AtomBase);
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
inline EXTERN ArrayEntry * RepArrayProp(Prop p);
|
|
|
|
inline EXTERN ArrayEntry * RepArrayProp(Prop p)
|
|
{
|
|
return (ArrayEntry *) (p);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsArrayProp(ArrayEntry * p);
|
|
|
|
inline EXTERN Prop AbsArrayProp(ArrayEntry * p)
|
|
{
|
|
return (Prop) (p);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN StaticArrayEntry * RepStaticArrayProp(Prop p);
|
|
|
|
inline EXTERN StaticArrayEntry * RepStaticArrayProp(Prop p)
|
|
{
|
|
return (StaticArrayEntry *) (p);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Prop AbsStaticArrayProp(StaticArrayEntry * p);
|
|
|
|
inline EXTERN Prop AbsStaticArrayProp(StaticArrayEntry * p)
|
|
{
|
|
return (Prop) (p);
|
|
}
|
|
|
|
|
|
#endif
|
|
#define ArrayProperty ((PropFlags)0xfff7)
|
|
|
|
|
|
inline EXTERN int ArrayIsDynamic(ArrayEntry *);
|
|
|
|
inline EXTERN int ArrayIsDynamic(ArrayEntry * are)
|
|
{
|
|
return (int) (((are)->ArrayEArity > 0 ));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN PropFlags IsArrayProperty(int);
|
|
|
|
inline EXTERN PropFlags IsArrayProperty(int flags)
|
|
{
|
|
return (PropFlags) ((flags == ArrayProperty) );
|
|
}
|
|
|
|
|
|
|
|
/* Proto types */
|
|
|
|
/* cdmgr.c */
|
|
int STD_PROTO(RemoveIndexation,(PredEntry *));
|
|
|
|
/* dbase.c */
|
|
void STD_PROTO(ErDBE,(DBRef));
|
|
DBRef STD_PROTO(StoreTermInDB,(int,int));
|
|
Term STD_PROTO(FetchTermFromDB,(DBRef,int));
|
|
void STD_PROTO(ReleaseTermFromDB,(DBRef));
|
|
|
|
/* .c */
|
|
CODEADDR STD_PROTO(PredIsIndexable,(PredEntry *));
|
|
|
|
/* init.c */
|
|
Atom STD_PROTO(GetOp,(OpEntry *,int *,int));
|
|
|
|
/* vsc: redefined to GetAProp to avoid conflicts with Windows header files */
|
|
Prop STD_PROTO(GetAProp,(Atom,PropFlags));
|
|
Prop STD_PROTO(GetAPropHavingLock,(AtomEntry *,PropFlags));
|
|
|
|
EXTERN inline Prop
|
|
PredPropByFunc(Functor f, SMALLUNSGN cur_mod)
|
|
/* get predicate entry for ap/arity; create it if neccessary. */
|
|
{
|
|
Prop p0;
|
|
FunctorEntry *fe = (FunctorEntry *)f;
|
|
|
|
WRITE_LOCK(fe->FRWLock);
|
|
p0 = fe->PropsOfFE;
|
|
while (p0) {
|
|
PredEntry *p = RepPredProp(p0);
|
|
if (/* p->KindOfPE != 0 || only props */
|
|
(p->ModuleOfPred == cur_mod || !(p->ModuleOfPred))) {
|
|
WRITE_UNLOCK(f->FRWLock);
|
|
return (p0);
|
|
}
|
|
p0 = p->NextOfPE;
|
|
}
|
|
return(NewPredPropByFunctor(fe,cur_mod));
|
|
}
|
|
|
|
EXTERN inline Prop
|
|
PredPropByAtom(Atom at, SMALLUNSGN cur_mod)
|
|
/* get predicate entry for ap/arity; create it if neccessary. */
|
|
{
|
|
Prop p0;
|
|
AtomEntry *ae = RepAtom(at);
|
|
|
|
WRITE_LOCK(ae->ARWLock);
|
|
p0 = ae->PropsOfAE;
|
|
while (p0) {
|
|
PredEntry *pe = RepPredProp(p0);
|
|
if ( pe->KindOfPE == PEProp &&
|
|
(pe->ModuleOfPred == cur_mod || !pe->ModuleOfPred)) {
|
|
WRITE_UNLOCK(ae->ARWLock);
|
|
return(p0);
|
|
}
|
|
p0 = pe->NextOfPE;
|
|
}
|
|
return(NewPredPropByAtom(ae,cur_mod));
|
|
}
|
|
|
|
#if defined(YAPOR) || defined(THREADS)
|
|
void STD_PROTO(ReleasePreAllocCodeSpace, (ADDR));
|
|
#else
|
|
#define ReleasePreAllocCodeSpace(x)
|
|
#endif
|