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allow strong generic buffers in stack.

This commit is contained in:
Vitor Santos Costa 2011-07-21 02:24:21 -07:00
parent 2c8e6cf2d1
commit 7a33b8ebbf
4 changed files with 47 additions and 5 deletions
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22
C/bignum.c
View File

@ -59,6 +59,28 @@ Yap_MkBigIntTerm(MP_INT *big)
return AbsAppl(ret);
}
Term
Yap_AllocDynamicData(size_t bytes)
{
CACHE_REGS
Int nlimbs;
MP_INT *dst = (MP_INT *)(H+2);
CELL *ret = H;
nlimbs = ALIGN_YAPTYPE(bytes,CELL)/CellSize;
if (nlimbs > (ASP-ret)-1024) {
return TermNil;
}
H[0] = (CELL)FunctorBigInt;
H[1] = EXTERNAL_BLOB;
dst->_mp_size = 0;
dst->_mp_alloc = nlimbs;
H = (CELL *)(dst+1)+nlimbs;
H[0] = EndSpecials;
H++;
return AbsAppl(ret);
}
MP_INT *
Yap_BigIntOfTerm(Term t)
{

8
C/heapgc.c
View File

@ -1325,7 +1325,7 @@ mark_variable(CELL_PTR current USES_REGS)
sz++;
#if DEBUG
if (next[sz] != EndSpecials) {
fprintf(stderr,"[ Error: could not find EndSpecials at blob %p type %lx ]\n", next, next[1]);
fprintf(stderr,"[ Error: could not find EndSpecials at blob %p type " UInt_FORMAT " ]\n", next, next[1]);
}
#endif
MARK(next+sz);
@ -1904,11 +1904,11 @@ mark_choicepoints(register choiceptr gc_B, tr_fr_ptr saved_TR, int very_verbose
PredEntry *pe = Yap_PredForChoicePt(gc_B);
#if defined(ANALYST) || defined(DEBUG)
if (pe == NULL) {
fprintf(GLOBAL_stderr,"%% marked %ld (%s)\n", LOCAL_total_marked, Yap_op_names[opnum]);
fprintf(GLOBAL_stderr,"%% marked " UInt_FORMAT " (%s)\n", LOCAL_total_marked, Yap_op_names[opnum]);
} else if (pe->ArityOfPE) {
fprintf(GLOBAL_stderr,"%% %s/%d marked %ld (%s)\n", RepAtom(NameOfFunctor(pe->FunctorOfPred))->StrOfAE, pe->ArityOfPE, LOCAL_total_marked, Yap_op_names[opnum]);
fprintf(GLOBAL_stderr,"%% %s/%d marked " UInt_FORMAT " (%s)\n", RepAtom(NameOfFunctor(pe->FunctorOfPred))->StrOfAE, pe->ArityOfPE, LOCAL_total_marked, Yap_op_names[opnum]);
} else {
fprintf(GLOBAL_stderr,"%% %s marked %ld (%s)\n", RepAtom((Atom)(pe->FunctorOfPred))->StrOfAE, LOCAL_total_marked, Yap_op_names[opnum]);
fprintf(GLOBAL_stderr,"%% %s marked " UInt_FORMAT " (%s)\n", RepAtom((Atom)(pe->FunctorOfPred))->StrOfAE, LOCAL_total_marked, Yap_op_names[opnum]);
}
#else
if (pe == NULL) {

21
H/TermExt.h
View File

@ -86,7 +86,7 @@ typedef enum
CLAUSE_LIST = 0x40,
BLOB_STRING = 0x80, /* SWI style strings */
BLOB_WIDE_STRING = 0x81, /* SWI style strings */
EXTERNAL_BLOB = 0x100 /* for SWI emulation */
EXTERNAL_BLOB = 0x100 /* generic data */
}
big_blob_type;
@ -438,6 +438,25 @@ IsLargeNumTerm (Term t)
&& (FunctorOfTerm (t) >= FunctorLongInt)));
}
inline EXTERN int IsExternalBlobTerm (Term);
inline EXTERN int
IsExternalBlobTerm (Term t)
{
return (int) (IsApplTerm (t) &&
FunctorOfTerm (t) == FunctorBigInt &&
RepAppl(t)[1] == EXTERNAL_BLOB);
}
inline EXTERN void *ExternalBlobFromTerm (Term);
inline EXTERN void *
ExternalBlobFromTerm (Term t)
{
MP_INT *base = (MP_INT *)(RepAppl(t)+2);
return (void *) (base+1);
}

1
H/Yapproto.h
View File

@ -120,6 +120,7 @@ int STD_PROTO(Yap_IsStringTerm, (Term));
int STD_PROTO(Yap_IsWideStringTerm, (Term));
Term STD_PROTO(Yap_RatTermToApplTerm, (Term));
void STD_PROTO(Yap_InitBigNums, (void));
Term STD_PROTO(Yap_AllocDynamicData, (size_t));
/* c_interface.c */
Int STD_PROTO(YAP_Execute,(struct pred_entry *, CPredicate));