diogo/yap-6.3
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fix reading predicates with prolog and other module.

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This commit is contained in:
Vitor Santos Costa 2011-09-05 01:11:06 +02:00
parent d38d54b67a
commit 5dd62b6354
2 changed files with 95 additions and 5 deletions
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11
C/qlyr.c
View File

@ -785,7 +785,6 @@ ReadHash(IOSTREAM *stream)
static void
read_clauses(IOSTREAM *stream, PredEntry *pp, UInt nclauses, UInt flags) {
if (pp->PredFlags & LogUpdatePredFlag) {
pp->TimeStampOfPred = 0L;
/* first, clean up whatever was there */
if (pp->cs.p_code.NOfClauses) {
@ -887,7 +886,7 @@ read_pred(IOSTREAM *stream, Term mod) {
if (mod == IDB_MODULE) {
if (flags & AtomDBPredFlag) {
Atom a = LookupAtom((Atom)read_uint(stream));
if ((ap = RepPredProp(PredPropByAtom(a,mod))) == NULL) {
if ((ap = RepPredProp(PredPropByAtomAndMod(a,mod))) == NULL) {
ERROR(OUT_OF_CODE_SPACE);
}
} else if (flags & NumberDBPredFlag) {
@ -897,23 +896,25 @@ read_pred(IOSTREAM *stream, Term mod) {
}
} else {
Functor f = LookupFunctor((Functor)read_uint(stream));
if ((ap = RepPredProp(PredPropByFunc(f,mod))) == NULL) {
if ((ap = RepPredProp(PredPropByFuncAndMod(f,mod))) == NULL) {
ERROR(OUT_OF_CODE_SPACE);
}
}
} else {
if (mod == TermProlog)
mod = PROLOG_MODULE;
if (arity) {
Functor f;
f = LookupFunctor((Functor)read_uint(stream));
if ((ap = RepPredProp(PredPropByFunc(f,mod))) == NULL) {
if ((ap = RepPredProp(PredPropByFuncAndMod(f,mod))) == NULL) {
ERROR(OUT_OF_CODE_SPACE);
}
} else {
Atom a;
a = LookupAtom((Atom)read_uint(stream));
if ((ap = RepPredProp(PredPropByAtom(a,mod))) == NULL) {
if ((ap = RepPredProp(PredPropByAtomAndMod(a,mod))) == NULL) {
ERROR(OUT_OF_CODE_SPACE);
}
}

89
H/Yatom.h
View File

@ -1564,6 +1564,64 @@ PredPropByFunc (Functor fe, Term cur_mod)
return Yap_NewPredPropByFunctor (fe, cur_mod);
}
EXTERN inline Prop
GetPredPropByFuncAndModHavingLock (FunctorEntry *fe, Term cur_mod)
{
PredEntry *p;
if (!(p = RepPredProp(fe->PropsOfFE))) {
return NIL;
}
if (p->ModuleOfPred == cur_mod) {
#ifdef THREADS
/* Thread Local Predicates */
if (p->PredFlags & ThreadLocalPredFlag) {
return AbsPredProp (Yap_GetThreadPred (p INIT_REGS));
}
#endif
return AbsPredProp(p);
}
if (p->NextOfPE) {
UInt hash = PRED_HASH(fe,cur_mod,PredHashTableSize);
READ_LOCK(PredHashRWLock);
p = PredHash[hash];
while (p) {
if (p->FunctorOfPred == fe &&
p->ModuleOfPred == cur_mod)
{
#ifdef THREADS
/* Thread Local Predicates */
if (p->PredFlags & ThreadLocalPredFlag) {
READ_UNLOCK(PredHashRWLock);
return AbsPredProp (Yap_GetThreadPred (p INIT_REGS));
}
#endif
READ_UNLOCK(PredHashRWLock);
return AbsPredProp(p);
}
p = RepPredProp(p->NextOfPE);
}
READ_UNLOCK(PredHashRWLock);
}
return NIL;
}
EXTERN inline Prop
PredPropByFuncAndMod (Functor fe, Term cur_mod)
/* get predicate entry for ap/arity; create it if neccessary. */
{
Prop p0;
WRITE_LOCK (fe->FRWLock);
p0 = GetPredPropByFuncAndModHavingLock(fe, cur_mod);
if (p0) {
WRITE_UNLOCK (fe->FRWLock);
return p0;
}
return Yap_NewPredPropByFunctor (fe, cur_mod);
}
EXTERN inline Prop
PredPropByAtom (Atom at, Term cur_mod)
/* get predicate entry for ap/arity; create it if neccessary. */
@ -1595,6 +1653,37 @@ PredPropByAtom (Atom at, Term cur_mod)
return Yap_NewPredPropByAtom (ae, cur_mod);
}
EXTERN inline Prop
PredPropByAtomAndMod (Atom at, Term 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))
{
#ifdef THREADS
/* Thread Local Predicates */
if (pe->PredFlags & ThreadLocalPredFlag)
{
WRITE_UNLOCK (ae->ARWLock);
return AbsPredProp (Yap_GetThreadPred (pe INIT_REGS));
}
#endif
WRITE_UNLOCK (ae->ARWLock);
return (p0);
}
p0 = pe->NextOfPE;
}
return Yap_NewPredPropByAtom (ae, cur_mod);
}
#if DEBUG_PELOCKING
#define PELOCK(I,Z) \
{ LOCK((Z)->PELock); (Z)->StatisticsForPred.NOfEntries=(I);(Z)->StatisticsForPred.NOfHeadSuccesses=pthread_self(); }