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Exo change to support external usage

This commit is contained in:
David Vaz 2013-11-21 11:38:16 +00:00
parent c2219d0343
commit 638ef10c84
2 changed files with 61 additions and 41 deletions
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54
C/exo.c
View File

@ -562,12 +562,9 @@ Yap_NextExo(choiceptr cptr, struct index_t *it)
return next;
}
static Int
p_exodb_get_space( USES_REGS1 )
{ /* '$number_of_clauses'(Predicate,M,N) */
Term t = Deref(ARG1);
Term mod = Deref(ARG2);
Term tn = Deref(ARG3);
MegaClause *
exodb_get_space( Term t, Term mod, Term tn )
{
UInt arity;
Prop pe;
PredEntry *ap;
@ -578,7 +575,7 @@ p_exodb_get_space( USES_REGS1 )
if (IsVarTerm(mod) || !IsAtomTerm(mod)) {
return(FALSE);
return NULL;
}
if (IsAtomTerm(t)) {
Atom a = AtomOfTerm(t);
@ -589,10 +586,10 @@ p_exodb_get_space( USES_REGS1 )
arity = ArityOfFunctor(f);
pe = PredPropByFunc(f, mod);
} else {
return FALSE;
return NULL;
}
if (EndOfPAEntr(pe))
return FALSE;
return NULL;
ap = RepPredProp(pe);
if (ap->PredFlags & (DynamicPredFlag|LogUpdatePredFlag
#ifdef TABLING
@ -600,21 +597,21 @@ p_exodb_get_space( USES_REGS1 )
#endif /* TABLING */
)) {
Yap_Error(PERMISSION_ERROR_MODIFY_STATIC_PROCEDURE,t,"dbload_get_space/4");
return FALSE;
return NULL;
}
if (IsVarTerm(tn) || !IsIntegerTerm(tn)) {
return FALSE;
return NULL;
}
ncls = IntegerOfTerm(tn);
if (ncls <= 1) {
return FALSE;
return NULL;
}
required = ncls*arity*sizeof(CELL)+sizeof(MegaClause)+2*sizeof(struct index_t *);
while (!(mcl = (MegaClause *)Yap_AllocCodeSpace(required))) {
if (!Yap_growheap(FALSE, required, NULL)) {
/* just fail, the system will keep on going */
return FALSE;
return NULL;
}
}
Yap_ClauseSpace += required;
@ -637,13 +634,25 @@ p_exodb_get_space( USES_REGS1 )
ap->OpcodeOfPred = Yap_opcode(_enter_exo);
}
ap->CodeOfPred = ap->cs.p_code.TrueCodeOfPred = (yamop *)(&(ap->OpcodeOfPred));
return mcl;
}
static Int
p_exodb_get_space( USES_REGS1 )
{ /* '$number_of_clauses'(Predicate,M,N) */
void *mcl;
if ((mcl = exodb_get_space(Deref(ARG1), Deref(ARG2), Deref(ARG3))) == NULL)
return FALSE;
return Yap_unify(ARG4, MkIntegerTerm((Int)mcl));
}
#define DerefAndCheck(t, V) \
t = Deref(V); if(IsVarTerm(t) || !(IsAtomOrIntTerm(t))) Yap_Error(TYPE_ERROR_ATOM, t0, "load_db");
static int
static Int
store_exo(yamop *pc, UInt arity, Term t0)
{
Term t;
@ -659,12 +668,23 @@ store_exo(yamop *pc, UInt arity, Term t0)
return TRUE;
}
void
exoassert( void *handle, Int n, Term term )
{ /* '$number_of_clauses'(Predicate,M,N) */
PredEntry *pe;
MegaClause *mcl;
mcl = (MegaClause *) handle;
pe = mcl->ClPred;
store_exo((yamop *)((ADDR)mcl->ClCode+2*sizeof(struct index_t *)+n*(mcl->ClItemSize)),pe->ArityOfPE, term);
}
static Int
p_exoassert( USES_REGS1 )
{ /* '$number_of_clauses'(Predicate,M,N) */
Term thandle = Deref(ARG2);
Term tn = Deref(ARG3);
PredEntry *pe;
MegaClause *mcl;
Int n;
@ -677,8 +697,8 @@ p_exoassert( USES_REGS1 )
return FALSE;
}
n = IntegerOfTerm(tn);
pe = mcl->ClPred;
return store_exo((yamop *)((ADDR)mcl->ClCode+2*sizeof(struct index_t *)+n*(mcl->ClItemSize)),pe->ArityOfPE, Deref(ARG1));
exoassert(mcl,n,Deref(ARG1));
return TRUE;
}
void

2
Makefile.in
View File

@ -115,6 +115,7 @@ INTERFACE_HEADERS = \
$(srcdir)/include/yap_structs.h \
$(srcdir)/include/YapInterface.h \
$(srcdir)/include/SWI-Prolog.h \
$(srcdir)/include/YapError.h \
$(srcdir)/H/TermExt.h \
$(srcdir)/H/YapTags.h \
$(srcdir)/H/Tags_32bits.h \
@ -149,7 +150,6 @@ HEADERS = \
$(srcdir)/H/sshift.h \
$(srcdir)/H/Yap.h \
$(srcdir)/H/Yatom.h \
$(srcdir)/include/YapError.h \
$(srcdir)/H/YapHeap.h \
$(srcdir)/H/Regs.h \
$(srcdir)/H/Yapproto.h \