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add utility routine to report on a predicate.

This commit is contained in:
Vitor Santos Costa 2015-01-15 01:14:47 -08:00
parent 3122d323b5
commit 326771d17b
1 changed files with 32 additions and 0 deletions
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32
H/Yatom.h
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@ -1865,6 +1865,38 @@ PredPropByAtomAndMod (Atom at, Term cur_mod)
return Yap_NewPredPropByAtom (ae, cur_mod);
}
//
// report arity, name, and module for a predicate.
//
INLINE_ONLY inline EXTERN
UInt IndicatorOfPred(PredEntry * ap, const char *name, const char *module);
INLINE_ONLY inline EXTERN
UInt IndicatorOfPred(PredEntry * ap, const char *name, const char *module)
{
Term tmod = ap->ModuleOfPred;
if (!tmod) module = "prolog";
else module = RepAtom(AtomOfTerm( tmod ))->StrOfAE;
if (ap->ModuleOfPred == IDB_MODULE &&
ap->PredFlags & NumberDBPredFlag) {
Int id = ap->src.IndxId;
char *s = (char *)malloc(16);
snprintf(s, 15, Int_FORMAT, id);
name = s;
return 0;
}
if (ap->ArityOfPE == 0) {
Atom At = (Atom)ap->FunctorOfPred;
name = RepAtom(At)->StrOfAE;
return 0;
} else {
Functor f = ap->FunctorOfPred;
Atom At = NameOfFunctor(f);
name = RepAtom(At)->StrOfAE;
return ArityOfFunctor(f);
}
}
#if DEBUG_PELOCKING
#define PELOCK(I,Z) \
{ LOCK((Z)->PELock); (Z)->StatisticsForPred.NOfEntries=(I);(Z)->StatisticsForPred.NOfHeadSuccesses=pthread_self(); }