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save/restore exo

This commit is contained in:
Vitor Santos Costa 2013-01-11 18:36:34 +00:00
parent a913523d6a
commit e9d04ef9f5
4 changed files with 27 additions and 6 deletions
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2
C/exo.c
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@ -421,7 +421,7 @@ p_exodb_get_space( USES_REGS1 )
Yap_ClauseSpace += required;
/* cool, it's our turn to do the conversion */
mcl->ClFlags = MegaMask|ExoMask;
mcl->ClSize = required-sizeof(MegaClause);
mcl->ClSize = required;
mcl->ClPred = ap;
mcl->ClItemSize = arity*sizeof(CELL);
mcl->ClNext = NULL;

11
C/qlyr.c
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@ -849,6 +849,7 @@ read_clauses(IOSTREAM *stream, PredEntry *pp, UInt nclauses, UInt flags) {
} else if (pp->PredFlags & MegaClausePredFlag) {
CACHE_REGS
char *base = (void *)read_uint(stream);
UInt mask = read_uint(stream);
UInt size = read_uint(stream);
MegaClause *cl = (MegaClause *)Yap_AlwaysAllocCodeSpace(size);
@ -857,12 +858,20 @@ read_clauses(IOSTREAM *stream, PredEntry *pp, UInt nclauses, UInt flags) {
}
LOCAL_HDiff = (char *)cl-base;
read_bytes(stream, cl, size);
cl->ClFlags = mask;
pp->cs.p_code.FirstClause =
pp->cs.p_code.LastClause =
cl->ClCode;
pp->PredFlags |= MegaClausePredFlag;
/* enter index mode */
pp->OpcodeOfPred = INDEX_OPCODE;
if (mask & ExoMask) {
struct index_t **icl = (struct index_t **)(cl->ClCode);
pp->OpcodeOfPred = Yap_opcode(_enter_exo);
icl[0] = NULL;
icl[1] = NULL;
} else {
pp->OpcodeOfPred = INDEX_OPCODE;
}
pp->CodeOfPred = pp->cs.p_code.TrueCodeOfPred = (yamop *)(&(pp->OpcodeOfPred));
/* This must be set for restoremegaclause */
pp->cs.p_code.NOfClauses = nclauses;

1
C/qlyw.c
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@ -649,6 +649,7 @@ save_clauses(IOSTREAM *stream, PredEntry *pp) {
UInt size = cl->ClSize;
CHECK(save_uint(stream, (UInt)cl));
CHECK(save_uint(stream, (UInt)(cl->ClFlags)));
CHECK(save_uint(stream, size));
CHECK(save_bytes(stream, cl, size));
} else if (pp->PredFlags & DynamicPredFlag) {

19
H/rheap.h
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@ -588,10 +588,21 @@ RestoreMegaClause(MegaClause *cl USES_REGS)
}
max = (yamop *)((CODEADDR)cl+cl->ClSize);
for (ptr = cl->ClCode; ptr < max; ) {
nextptr = (yamop *)((char *)ptr + cl->ClItemSize);
restore_opcodes(ptr, nextptr PASS_REGS);
ptr = nextptr;
if (cl->ClFlags & ExoMask) {
CELL *base = (CELL *)((ADDR)cl->ClCode+2*sizeof(struct index_t *));
CELL *end = (CELL*)max, *ptr;
for (ptr = base; ptr < end; ptr++) {
Term t = *ptr;
if (IsAtomTerm(t)) *ptr = AtomTermAdjust(t);
/* don't handle other complex terms just yet, ints are ok */
}
} else {
for (ptr = cl->ClCode; ptr < max; ) {
nextptr = (yamop *)((char *)ptr + cl->ClItemSize);
restore_opcodes(ptr, nextptr PASS_REGS);
ptr = nextptr;
}
}
}