/************************************************************************* * * * YAP Prolog * * * * Yap Prolog was developed at NCCUP - Universidade do Porto * * * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * * ************************************************************************** * * * File: rheap.h * * comments: walk through heap code * * * * Last rev: $Date: 2008-08-07 20:51:23 $,$Author: vsc $ * * $Log: not supported by cvs2svn $ * Revision 1.99 2008/07/22 23:34:49 vsc * SWI and module fixes * * Revision 1.98 2008/05/12 22:31:37 vsc * fix previous fixes * * Revision 1.97 2008/05/12 14:04:23 vsc * updates to restore * * Revision 1.96 2008/04/11 16:58:17 ricroc * yapor: seq_def initialization * * Revision 1.95 2008/04/06 12:06:48 vsc * more small fixes * * Revision 1.94 2008/04/06 11:53:02 vsc * fix some restore bugs * * Revision 1.93 2008/04/04 09:10:02 vsc * restore was restoring twice * * Revision 1.92 2008/04/03 11:34:47 vsc * fix restorebb in cases entry key is not an atom (obs from Nicos * Angelopoulos) * * Revision 1.91 2008/04/01 15:31:43 vsc * more saved state fixes * * Revision 1.90 2008/04/01 14:09:43 vsc * improve restore * * Revision 1.89 2008/04/01 09:41:05 vsc * more fixes to restore * * Revision 1.88 2008/04/01 08:42:46 vsc * fix restore and small VISTA thingies * * Revision 1.87 2008/03/25 22:03:14 vsc * fix some icc warnings * * Revision 1.86 2008/03/25 16:45:53 vsc * make or-parallelism compile again * * Revision 1.85 2008/02/12 17:03:52 vsc * SWI-portability changes * * Revision 1.84 2008/02/07 21:39:51 vsc * fix case where predicate is for an integer (DBEntry). * * Revision 1.83 2008/01/23 17:57:55 vsc * valgrind it! * enable atom garbage collection. * * Revision 1.82 2007/12/05 12:17:23 vsc * improve JT * fix graph compatibility with SICStus * re-export declaration. * * Revision 1.81 2007/11/26 23:43:09 vsc * fixes to support threads and assert correctly, even if inefficiently. * * Revision 1.80 2007/11/07 09:35:53 vsc * small fix * * Revision 1.79 2007/11/07 09:25:27 vsc * speedup meta-calls * * Revision 1.78 2007/11/06 17:02:12 vsc * compile ground terms away. * * Revision 1.77 2007/10/10 09:44:24 vsc * some more fixes to make YAP swi compatible * fix absolute_file_name (again) * fix setarg * * Revision 1.76 2007/09/28 23:18:17 vsc * handle learning from interpretations. * * Revision 1.75 2007/04/10 22:13:21 vsc * fix max modules limitation * * Revision 1.74 2007/03/22 11:12:21 vsc * make sure that YAP_Restart does not restart a failed goal. * * Revision 1.73 2007/02/18 00:26:36 vsc * fix atom garbage collector (although it is still off by default) * make valgrind feel better * * Revision 1.72 2007/01/08 08:27:19 vsc * fix restore (Trevor) * make indexing a bit faster on IDB * * Revision 1.71 2006/11/27 17:42:03 vsc * support for UNICODE, and other bug fixes. * * Revision 1.70 2006/08/25 19:50:35 vsc * global data structures * * Revision 1.69 2006/08/22 16:12:46 vsc * global variables * * Revision 1.68 2006/08/02 18:18:30 vsc * preliminary support for readutil library (SWI compatible). * * Revision 1.67 2006/05/17 18:38:11 vsc * make system library use true file name * * Revision 1.66 2006/04/28 15:48:33 vsc * do locking on streams * * Revision 1.65 2006/04/28 13:23:23 vsc * fix number of overflow bugs affecting threaded version * make current_op faster. * * Revision 1.64 2006/03/22 20:07:28 vsc * take better care of zombies * * Revision 1.63 2006/03/06 14:04:56 vsc * fixes to garbage collector * fixes to debugger * * Revision 1.62 2006/02/24 14:03:42 vsc * fix refs to old LogUpd implementation (pre 5). * * Revision 1.61 2006/01/02 02:16:18 vsc * support new interface between YAP and GMP, so that we don't rely on our own * allocation routines. * Several big fixes. * * Revision 1.60 2005/12/17 03:25:39 vsc * major changes to support online event-based profiling * improve error discovery and restart on scanner. * * Revision 1.59 2005/12/05 17:16:11 vsc * write_depth/3 * overflow handlings and garbage collection * Several ipdates to CLPBN * dif/2 could be broken in the presence of attributed variables. * * Revision 1.58 2005/11/23 03:01:33 vsc * fix several bugs in save/restore.b * * Revision 1.57 2005/10/28 17:38:50 vsc * sveral updates * * Revision 1.56 2005/10/21 16:09:03 vsc * SWI compatible module only operators * * Revision 1.55 2005/10/19 19:00:48 vsc * extend arrays with nb_terms so that we can implement nb_ builtins * correctly. * * Revision 1.54 2005/09/09 17:24:39 vsc * a new and hopefully much better implementation of atts. * * Revision 1.53 2005/08/01 15:40:38 ricroc * TABLING NEW: better support for incomplete tabling * * Revision 1.52 2005/07/06 19:34:11 ricroc * TABLING: answers for completed calls can now be obtained by loading (new option) or executing (default) them from the trie data structure. * * Revision 1.51 2005/07/06 15:10:15 vsc * improvements to compiler: merged instructions and fixes for -> * * Revision 1.50 2005/06/01 13:53:46 vsc * improve bb routines to use the DB efficiently * change interface between DB and BB. * * Revision 1.49 2005/05/30 03:26:37 vsc * add some atom gc fixes * * Revision 1.48 2005/01/04 02:50:21 vsc * - allow MegaClauses with blobs * - change Diffs to be thread specific * - include Christian's updates * * Revision 1.47 2004/12/02 06:06:47 vsc * fix threads so that they at least start * allow error handling to work with threads * replace heap_base by Yap_heap_base, according to Yap's convention for globals. * * Revision 1.46 2004/11/23 21:16:21 vsc * A few extra fixes for saved states. * * Revision 1.45 2004/10/26 20:16:18 vsc * More bug fixes for overflow handling * * Revision 1.44 2004/10/06 16:55:47 vsc * change configure to support big mem configs * get rid of extra globals * fix trouble with multifile preds * * Revision 1.43 2004/09/27 20:45:04 vsc * Mega clauses * Fixes to sizeof(expand_clauses) which was being overestimated * Fixes to profiling+indexing * Fixes to reallocation of memory after restoring * Make sure all clauses, even for C, end in _Ystop * Don't reuse space for Streams * Fix Stream_F on StreaNo+1 * * Revision 1.42 2004/06/05 03:37:00 vsc * coroutining is now a part of attvars. * some more fixes. * * Revision 1.41 2004/04/29 03:45:50 vsc * fix garbage collection in execute_tail * * Revision 1.40 2004/03/31 01:03:10 vsc * support expand group of clauses * * Revision 1.39 2004/03/19 11:35:42 vsc * trim_trail for default machine * be more aggressive about try-retry-trust chains. * - handle cases where block starts with a wait * - don't use _killed instructions, just let the thing rot by itself. * * * * *************************************************************************/ #ifdef SCCS static char SccsId[] = "@(#)rheap.c 1.3 3/15/90"; #endif #define Atomics 0 #define Funcs 1 static Term ConstantTermAdjust (Term t) { if (IsAtomTerm(t)) return AtomTermAdjust(t); else if (IsIntTerm(t)) return t; else if (IsApplTerm(t)) return BlobTermAdjust(t); else if (IsPairTerm(t)) return CodeComposedTermAdjust(t); else return t; } /* Now, everything on its place so you must adjust the pointers */ static void do_clean_susp_clauses(yamop *ipc) { COUNT i; yamop **st = (yamop **)NEXTOP(ipc,sssllp); ipc->opc = Yap_opcode(_expand_clauses); ipc->u.sssllp.p = PtoPredAdjust(ipc->u.sssllp.p); if (ipc->u.sssllp.sprev) { ipc->u.sssllp.sprev = PtoOpAdjust(ipc->u.sssllp.sprev); } if (ipc->u.sssllp.snext) { ipc->u.sssllp.snext = PtoOpAdjust(ipc->u.sssllp.snext); } for (i = 0; i < ipc->u.sssllp.s1; i++, st++) { if (*st) { *st = PtoOpAdjust(*st); } } } static void AdjustSwitchTable(op_numbers op, yamop *table, COUNT i) { CELL *startcode = (CELL *)table; switch (op) { case _switch_on_func: { COUNT j; CELL *oldcode; oldcode = startcode; for (j = 0; j < i; j++) { Functor oldfunc = (Functor)(oldcode[0]); CODEADDR oldjmp = (CODEADDR)(oldcode[1]); if (oldfunc) { oldcode[0] = (CELL)FuncAdjust(oldfunc); } oldcode[1] = (CELL)CodeAddrAdjust(oldjmp); oldcode += 2; } rehash(startcode, i, Funcs); } break; case _switch_on_cons: { COUNT j; CELL *oldcode; #if !defined(USE_OFFSETS) oldcode = startcode; #endif for (j = 0; j < i; j++) { Term oldcons = oldcode[0]; CODEADDR oldjmp = (CODEADDR)(oldcode[1]); if (oldcons != 0x0 && IsAtomTerm(oldcons)) { oldcode[0] = AtomTermAdjust(oldcons); } oldcode[1] = (CELL)CodeAddrAdjust(oldjmp); oldcode += 2; } #if !USE_OFFSETS rehash(startcode, i, Atomics); #endif } break; case _go_on_func: { Functor oldfunc = (Functor)(startcode[0]); startcode[0] = (CELL)FuncAdjust(oldfunc); startcode[1] = (CELL)CodeAddrAdjust((CODEADDR)startcode[1]); startcode[3] = (CELL)CodeAddrAdjust((CODEADDR)startcode[3]); } break; case _go_on_cons: { Term oldcons = startcode[0]; if (IsAtomTerm(oldcons)) { startcode[0] = AtomTermAdjust(oldcons); } startcode[1] = (CELL)CodeAddrAdjust((CODEADDR)startcode[1]); startcode[3] = (CELL)CodeAddrAdjust((CODEADDR)startcode[3]); } break; case _if_func: { Int j; for (j = 0; j < i; j++) { Functor oldfunc = (Functor)(startcode[0]); CODEADDR oldjmp = (CODEADDR)(startcode[1]); startcode[0] = (CELL)FuncAdjust(oldfunc); startcode[1] = (CELL)CodeAddrAdjust(oldjmp); startcode += 2; } /* adjust fail code */ startcode[1] = (CELL)CodeAddrAdjust((CODEADDR)startcode[1]); } break; case _if_cons: { Int j; for (j = 0; j < i; j++) { Term oldcons = startcode[0]; CODEADDR oldjmp = (CODEADDR)(startcode[1]); if (IsAtomTerm(oldcons)) { startcode[0] = (CELL)AtomTermAdjust(oldcons); } startcode[1] = (CELL)CodeAddrAdjust(oldjmp); startcode += 2; } /* adjust fail code */ startcode[1] = (CELL)CodeAddrAdjust((CODEADDR)startcode[1]); } break; default: Yap_Error(INTERNAL_ERROR,0L,"Opcode Not Implemented in AdjustSwitchTable"); } } STATIC_PROTO(void RestoreAtomList, (Atom)); STATIC_PROTO(void RestoreAtom, (AtomEntry *)); static void RestoreAtoms(void) { AtomHashEntry *HashPtr; register int i; Yap_heap_regs->hash_chain = PtoAtomHashEntryAdjust(Yap_heap_regs->hash_chain); HashPtr = HashChain; for (i = 0; i < AtomHashTableSize; ++i) { HashPtr->Entry = AtomAdjust(HashPtr->Entry); RestoreAtomList(HashPtr->Entry); HashPtr++; } } static void RestoreWideAtoms(void) { AtomHashEntry *HashPtr; register int i; Yap_heap_regs->wide_hash_chain = PtoAtomHashEntryAdjust(Yap_heap_regs->wide_hash_chain); HashPtr = WideHashChain; for (i = 0; i < WideAtomHashTableSize; ++i) { HashPtr->Entry = AtomAdjust(HashPtr->Entry); RestoreAtomList(HashPtr->Entry); HashPtr++; } } static void RestoreInvisibleAtoms(void) { INVISIBLECHAIN.Entry = AtomAdjust(INVISIBLECHAIN.Entry); RestoreAtomList(INVISIBLECHAIN.Entry); RestoreAtom(RepAtom(AtomFoundVar)); RestoreAtom(RepAtom(AtomFreeTerm)); } #include "rclause.h" /* adjusts terms stored in the data base, when they have no variables */ static Term AdjustDBTerm(Term trm, Term *p_base) { if (IsVarTerm(trm)) return CodeVarAdjust(trm); if (IsAtomTerm(trm)) return AtomTermAdjust(trm); if (IsPairTerm(trm)) { Term *p; Term out; p = PtoHeapCellAdjust(RepPair(trm)); out = AbsPair(p); loop: if (p >= p_base) { p[0] = AdjustDBTerm(p[0], p); if (IsPairTerm(p[1])) { /* avoid term recursion with very deep lists */ Term *newp = PtoHeapCellAdjust(RepPair(p[1])); p[1] = AbsPair(newp); p_base = p; p = newp; goto loop; } else { p[1] = AdjustDBTerm(p[1], p); } } return out; } if (IsApplTerm(trm)) { Term *p; Functor f; Term *p0 = p = PtoHeapCellAdjust(RepAppl(trm)); /* if it is before the current position, then we are looking at old code */ if (p >= p_base) { f = (Functor)p[0]; if (!IsExtensionFunctor(f)) { UInt Arity, i; f = FuncAdjust(f); *p++ = (Term)f; Arity = ArityOfFunctor(f); for (i = 0; i < Arity; ++i) { *p = AdjustDBTerm(*p, p0); p++; } } } return AbsAppl(p0); } return trm; } static void RestoreDBTerm(DBTerm *dbr, int attachments) { if (attachments) { #ifdef COROUTINING if (dbr->ag.attachments) dbr->ag.attachments = AdjustDBTerm(dbr->ag.attachments, dbr->Contents); #endif } else { if (dbr->ag.NextDBT) dbr->ag.NextDBT = DBTermAdjust(dbr->ag.NextDBT); } if (dbr->DBRefs != NULL) { DBRef *cp; DBRef tm; dbr->DBRefs = DBRefPAdjust(dbr->DBRefs); cp = dbr->DBRefs; while ((tm = *--cp) != 0) *cp = DBRefAdjust(tm); } dbr->Entry = AdjustDBTerm(dbr->Entry, dbr->Contents); } /* Restoring the heap */ /* Restores a prolog clause, in its compiled form */ static void RestoreStaticClause(StaticClause *cl) /* * Cl points to the start of the code, IsolFlag tells if we have a single * clause for this predicate or not */ { if (cl->ClFlags & FactMask) { cl->usc.ClPred = PtoPredAdjust(cl->usc.ClPred); } else { cl->usc.ClSource = DBTermAdjust(cl->usc.ClSource); } if (cl->ClNext) { cl->ClNext = PtoStCAdjust(cl->ClNext); } restore_opcodes(cl->ClCode, NULL); } /* Restores a prolog clause, in its compiled form */ static void RestoreMegaClause(MegaClause *cl) /* * Cl points to the start of the code, IsolFlag tells if we have a single * clause for this predicate or not */ { UInt ncls, i; yamop *ptr; cl->ClPred = PtoPredAdjust(cl->ClPred); if (cl->ClNext) { cl->ClNext = (MegaClause *)AddrAdjust((ADDR)(cl->ClNext)); } ncls = cl->ClPred->cs.p_code.NOfClauses; for (i = 0, ptr = cl->ClCode; i < ncls; i++) { yamop *nextptr = (yamop *)((char *)ptr + cl->ClItemSize); restore_opcodes(ptr, nextptr); ptr = nextptr; } } /* Restores a prolog clause, in its compiled form */ static void RestoreDynamicClause(DynamicClause *cl, PredEntry *pp) /* * Cl points to the start of the code, IsolFlag tells if we have a single * clause for this predicate or not */ { if (cl->ClPrevious != NULL) { cl->ClPrevious = PtoOpAdjust(cl->ClPrevious); } INIT_LOCK(cl->ClLock); restore_opcodes(cl->ClCode, NULL); } /* Restores a prolog clause, in its compiled form */ static void RestoreLUClause(LogUpdClause *cl, PredEntry *pp) /* * Cl points to the start of the code, IsolFlag tells if we have a single * clause for this predicate or not */ { // INIT_LOCK(cl->ClLock); if (cl->ClFlags & LogUpdRuleMask) { cl->ClExt = PtoOpAdjust(cl->ClExt); } if (cl->ClSource) { cl->ClSource = DBTermAdjust(cl->ClSource); RestoreDBTerm(cl->ClSource, TRUE); } if (cl->ClPrev) { cl->ClPrev = PtoLUCAdjust(cl->ClPrev); } if (cl->ClNext) { cl->ClNext = PtoLUCAdjust(cl->ClNext); } cl->ClPred = PtoPredAdjust(cl->ClPred); restore_opcodes(cl->ClCode, NULL); } static void RestoreDBTermEntry(struct dbterm_list *dbl) { DBTerm *dbt; if (dbl->dbterms) dbt = dbl->dbterms = DBTermAdjust(dbl->dbterms); else return; dbl->clause_code = PtoOpAdjust(dbl->clause_code); if (dbl->next_dbl) dbl->next_dbl = PtoDBTLAdjust(dbl->next_dbl); dbl->p = PredEntryAdjust(dbl->p); while (dbt) { RestoreDBTerm(dbt, FALSE); dbt = dbt->ag.NextDBT; } } static void CleanLUIndex(LogUpdIndex *idx, int recurse) { // INIT_LOCK(idx->ClLock); idx->ClPred = PtoPredAdjust(idx->ClPred); if (idx->ParentIndex) idx->ParentIndex = LUIndexAdjust(idx->ParentIndex); if (idx->PrevSiblingIndex) { idx->PrevSiblingIndex = LUIndexAdjust(idx->PrevSiblingIndex); } if (idx->SiblingIndex) { idx->SiblingIndex = LUIndexAdjust(idx->SiblingIndex); if (recurse) CleanLUIndex(idx->SiblingIndex, TRUE); } if (idx->ChildIndex) { idx->ChildIndex = LUIndexAdjust(idx->ChildIndex); if (recurse) CleanLUIndex(idx->ChildIndex, TRUE); } if (!(idx->ClFlags & SwitchTableMask)) { restore_opcodes(idx->ClCode, NULL); } } static void CleanSIndex(StaticIndex *idx, int recurse) { idx->ClPred = PtoPredAdjust(idx->ClPred); if (idx->SiblingIndex) { idx->SiblingIndex = SIndexAdjust(idx->SiblingIndex); if (recurse) CleanSIndex(idx->SiblingIndex, TRUE); } if (idx->ChildIndex) { idx->ChildIndex = SIndexAdjust(idx->ChildIndex); if (recurse) CleanSIndex(idx->ChildIndex, TRUE); } if (!(idx->ClFlags & SwitchTableMask)) { restore_opcodes(idx->ClCode, NULL); } } static void RestorePredHash(void) { PredHash = PtoPtoPredAdjust(PredHash); if (PredHash == NULL) { Yap_Error(FATAL_ERROR,MkIntTerm(0),"restore should find predicate hash table"); } REINIT_RWLOCK(PredHashRWLock); /* RestoreHashPreds() does most of the work */ } static void RestoreEnvInst(yamop start[2], yamop **instp, op_numbers opc, PredEntry *pred) { yamop *ipc = start; ipc->opc = Yap_opcode(_call); ipc->u.Osbpp.p = pred; ipc->u.Osbpp.p0 = pred; ipc = NEXTOP(ipc, Osbpp); ipc->opc = Yap_opcode(opc); *instp = ipc; } static void RestoreOtaplInst(yamop start[1], OPCODE opc, PredEntry *pe) { yamop *ipc = start; /* this is a place holder, it should not really be used */ ipc->opc = Yap_opcode(opc); ipc->u.Otapl.s = 0; ipc->u.Otapl.p = pe; if (ipc->u.Otapl.d) ipc->u.Otapl.d = PtoOpAdjust(ipc->u.Otapl.d); #ifdef YAPOR INIT_YAMOP_LTT(ipc, 1); #endif /* YAPOR */ #ifdef TABLING ipc->u.Otapl.te = NULL; #endif /* TABLING */ } static void RestoreDBTermsList(void) { if (Yap_heap_regs->dbterms_list) { struct dbterm_list *dbl = PtoDBTLAdjust(Yap_heap_regs->dbterms_list); Yap_heap_regs->dbterms_list = dbl; while (dbl) { RestoreDBTermEntry(dbl); dbl = dbl->next_dbl; } } } static void RestoreExpandList(void) { if (Yap_heap_regs->expand_clauses_first) Yap_heap_regs->expand_clauses_first = PtoOpAdjust(Yap_heap_regs->expand_clauses_first); if (Yap_heap_regs->expand_clauses_last) Yap_heap_regs->expand_clauses_last = PtoOpAdjust(Yap_heap_regs->expand_clauses_last); { yamop *ptr = Yap_heap_regs->expand_clauses_first; while (ptr) { do_clean_susp_clauses(ptr); ptr = ptr->u.sssllp.snext; } } } static void RestoreUdiControlBlocks(void) { if (Yap_heap_regs->udi_control_blocks) { Yap_Error(SYSTEM_ERROR, TermNil, "YAP cannot restore UDI entries!!\n"); } } static void RestoreIntKeys(void) { if (Yap_heap_regs->IntKeys != NULL) { Yap_heap_regs->IntKeys = (Prop *)AddrAdjust((ADDR)(Yap_heap_regs->IntKeys)); { UInt i; for (i = 0; i < Yap_heap_regs->int_keys_size; i++) { if (Yap_heap_regs->IntKeys[i] != NIL) { Prop p0 = Yap_heap_regs->IntKeys[i] = PropAdjust(Yap_heap_regs->IntKeys[i]); RestoreEntries(RepProp(p0), TRUE); } } } } } static void RestoreIntLUKeys(void) { if (Yap_heap_regs->IntLUKeys != NULL) { Yap_heap_regs->IntLUKeys = (Prop *)AddrAdjust((ADDR)(Yap_heap_regs->IntLUKeys)); { Int i; for (i = 0; i < INT_KEYS_SIZE; i++) { Prop p0 = INT_LU_KEYS[i]; if (p0) { p0 = PropAdjust(p0); INT_LU_KEYS[i] = p0; while (p0) { PredEntry *pe = RepPredProp(p0); pe->NextOfPE = PropAdjust(pe->NextOfPE); CleanCode(pe); p0 = RepProp(pe->NextOfPE); } } } } } } static void RestoreIntBBKeys(void) { if (Yap_heap_regs->IntBBKeys != NULL) { Yap_heap_regs->IntBBKeys = (Prop *)AddrAdjust((ADDR)(Yap_heap_regs->IntBBKeys)); { UInt i; for (i = 0; i < Yap_heap_regs->int_bb_keys_size; i++) { if (Yap_heap_regs->IntBBKeys[i] != NIL) { Prop p0 = Yap_heap_regs->IntBBKeys[i] = PropAdjust(Yap_heap_regs->IntBBKeys[i]); RestoreEntries(RepProp(p0), TRUE); } } } } } static void RestoreDBErasedMarker(void) { Yap_heap_regs->db_erased_marker = DBRefAdjust(Yap_heap_regs->db_erased_marker); Yap_heap_regs->db_erased_marker->id = FunctorDBRef; Yap_heap_regs->db_erased_marker->Flags = ErasedMask; Yap_heap_regs->db_erased_marker->Code = NULL; Yap_heap_regs->db_erased_marker->DBT.DBRefs = NULL; Yap_heap_regs->db_erased_marker->Parent = NULL; } static void RestoreLogDBErasedMarker(void) { Yap_heap_regs->logdb_erased_marker = PtoLUCAdjust(Yap_heap_regs->logdb_erased_marker); Yap_heap_regs->logdb_erased_marker->Id = FunctorDBRef; Yap_heap_regs->logdb_erased_marker->ClFlags = ErasedMask|LogUpdMask; Yap_heap_regs->logdb_erased_marker->ClSource = NULL; Yap_heap_regs->logdb_erased_marker->ClRefCount = 0; Yap_heap_regs->logdb_erased_marker->ClPred = PredLogUpdClause; Yap_heap_regs->logdb_erased_marker->ClExt = NULL; Yap_heap_regs->logdb_erased_marker->ClPrev = NULL; Yap_heap_regs->logdb_erased_marker->ClNext = NULL; Yap_heap_regs->logdb_erased_marker->ClSize = (UInt)NEXTOP(((LogUpdClause *)NULL)->ClCode,e); Yap_heap_regs->logdb_erased_marker->ClCode->opc = Yap_opcode(_op_fail); INIT_CLREF_COUNT(Yap_heap_regs->logdb_erased_marker); } static void RestoreDeadStaticClauses(void) { if (Yap_heap_regs->dead_static_clauses) { StaticClause *sc = PtoStCAdjust(Yap_heap_regs->dead_static_clauses); Yap_heap_regs->dead_static_clauses = sc; while (sc) { RestoreStaticClause(sc); sc = sc->ClNext; } } } static void RestoreDeadMegaClauses(void) { if (Yap_heap_regs->dead_mega_clauses) { MegaClause *mc = (MegaClause *)AddrAdjust((ADDR)(Yap_heap_regs->dead_mega_clauses)); Yap_heap_regs->dead_mega_clauses = mc; while (mc) { RestoreMegaClause(mc); mc = mc->ClNext; } } } static void RestoreDeadStaticIndices(void) { if (Yap_heap_regs->dead_static_indices) { StaticIndex *si = (StaticIndex *)AddrAdjust((ADDR)(Yap_heap_regs->dead_static_indices)); Yap_heap_regs->dead_static_indices = si; while (si) { CleanSIndex(si, FALSE); si = si->SiblingIndex; } } } static void RestoreDBErasedList(void) { if (Yap_heap_regs->db_erased_list) { LogUpdClause *lcl = Yap_heap_regs->db_erased_list = PtoLUCAdjust(Yap_heap_regs->db_erased_list); while (lcl) { RestoreLUClause(lcl, FALSE); lcl = lcl->ClNext; } } } static void RestoreDBErasedIList(void) { if (Yap_heap_regs->db_erased_ilist) { LogUpdIndex *icl = Yap_heap_regs->db_erased_ilist = LUIndexAdjust(Yap_heap_regs->db_erased_ilist); while (icl) { CleanLUIndex(icl, FALSE); icl = icl->SiblingIndex; } } } static void RestoreStreams(void) { if (Yap_heap_regs->yap_streams != NULL) { int sno; Yap_heap_regs->yap_streams = (struct stream_desc *)AddrAdjust((ADDR)Yap_heap_regs->yap_streams); for (sno = 0; sno < MaxStreams; ++sno) { if (Stream[sno].status & Free_Stream_f) continue; if (Stream[sno].status & (Socket_Stream_f|Pipe_Stream_f|InMemory_Stream_f)) continue; Stream[sno].u.file.user_name = AtomTermAdjust(Stream[sno].u.file.user_name); Stream[sno].u.file.name = AtomAdjust(Stream[sno].u.file.name); } } } static void RestoreAliases(void) { if (Yap_heap_regs->file_aliases != NULL) { int i; Yap_heap_regs->file_aliases = (struct AliasDescS *)AddrAdjust((ADDR)Yap_heap_regs->file_aliases); for (i = 0; i < NOfFileAliases; i++) FileAliases[i].name = AtomAdjust(FileAliases[i].name); } } static void RestoreForeignCode(void) { ForeignObj *f_code; if (!ForeignCodeLoaded) return; if (ForeignCodeLoaded != NULL) ForeignCodeLoaded = (void *)AddrAdjust((ADDR)ForeignCodeLoaded); f_code = ForeignCodeLoaded; while (f_code != NULL) { StringList objs, libs; if (f_code->objs != NULL) f_code->objs = (StringList)AddrAdjust((ADDR)f_code->objs); objs = f_code->objs; while (objs != NULL) { if (objs->next != NULL) objs->next = (StringList)AddrAdjust((ADDR)objs->next); if (objs->s != NULL) objs->s = (char *)AddrAdjust((ADDR)objs->s); objs = objs->next; } if (f_code->libs != NULL) f_code->libs = (StringList)AddrAdjust((ADDR)f_code->libs); libs = f_code->libs; while (libs != NULL) { if (libs->next != NULL) libs->next = (StringList)AddrAdjust((ADDR)libs->next); if (libs->s != NULL) libs->s = (char *)AddrAdjust((ADDR)libs->s); libs = libs->next; } if (f_code->f != NULL) f_code->f = (char *)AddrAdjust((ADDR)f_code->f); if (f_code->next != NULL) f_code->next = (ForeignObj *)AddrAdjust((ADDR)f_code->next); f_code = f_code->next; } } /* restore the failcodes */ static void restore_codes(void) { Yap_heap_regs->heap_top = AddrAdjust(OldHeapTop); #include "rhstruct.h" #if !defined(THREADS) && !defined(YAPOR) /* restore consult stack. It consists of heap pointers, so it is easy to fix. */ if (Yap_heap_regs->wl.ball_term) { Yap_heap_regs->wl.ball_term = DBTermAdjust(Yap_heap_regs->wl.ball_term); RestoreDBTerm(Yap_heap_regs->wl.ball_term, TRUE); } Yap_heap_regs->wl.consultlow = ConsultObjAdjust(Yap_heap_regs->wl.consultlow); Yap_heap_regs->wl.consultbase = ConsultObjAdjust(Yap_heap_regs->wl.consultbase); Yap_heap_regs->wl.consultsp = ConsultObjAdjust(Yap_heap_regs->wl.consultsp); { /* we assume all pointers have the same size */ register consult_obj *pt = Yap_heap_regs->wl.consultsp; while (pt < Yap_heap_regs->wl.consultlow+Yap_heap_regs->wl.consultcapacity) { pt->p = PropAdjust(pt->p); pt ++; } } #endif #if !defined(THREADS) && !defined(YAPOR) if (Yap_heap_regs->wl.scratchpad.ptr) { Yap_heap_regs->wl.scratchpad.ptr = (char *)AddrAdjust((ADDR)Yap_heap_regs->wl.scratchpad.ptr); } Yap_heap_regs->wl.gc_generation = AbsAppl(PtoGloAdjust(RepAppl(Yap_heap_regs->wl.gc_generation))); Yap_heap_regs->wl.gc_phase = AbsAppl(PtoGloAdjust(RepAppl(Yap_heap_regs->wl.gc_phase))); /* current phase is an integer */ #endif #ifdef COROUTINING #if !defined(THREADS) && !defined(YAPOR) Yap_heap_regs->wl.atts_mutable_list = AbsAppl(PtoGloAdjust(RepAppl(Yap_heap_regs->wl.atts_mutable_list))); if (Yap_heap_regs->wl.dynamic_arrays) { Yap_heap_regs->wl.dynamic_arrays = PtoArrayEAdjust(Yap_heap_regs->wl.dynamic_arrays); } if (Yap_heap_regs->wl.static_arrays) { Yap_heap_regs->wl.static_arrays = PtoArraySAdjust(Yap_heap_regs->wl.static_arrays); } if (Yap_heap_regs->wl.global_variables) { Yap_heap_regs->wl.global_variables = PtoGlobalEAdjust(Yap_heap_regs->wl.global_variables); } if (Yap_heap_regs->wl.global_arena) { if (IsAtomTerm(Yap_heap_regs->wl.global_arena)) { Yap_heap_regs->wl.global_arena = AtomTermAdjust(Yap_heap_regs->wl.global_arena); } else { Yap_heap_regs->wl.global_arena = AbsAppl(PtoGloAdjust(RepAppl(Yap_heap_regs->wl.global_arena))); } } if (Yap_heap_regs->wl.global_delay_arena) { Yap_heap_regs->wl.global_delay_arena = GlobalAdjust(Yap_heap_regs->wl.global_delay_arena); } Yap_heap_regs->wl.allow_restart = FALSE; #endif #endif } static void RestoreDBEntry(DBRef dbr) { #ifdef DEBUG_RESTORE fprintf(stderr, "Restoring at %x", dbr); if (dbr->Flags & DBAtomic) fprintf(stderr, " an atomic term\n"); else if (dbr->Flags & DBNoVars) fprintf(stderr, " with no vars\n"); else if (dbr->Flags & DBComplex) fprintf(stderr, " complex term\n"); else if (dbr->Flags & DBIsRef) fprintf(stderr, " a ref\n"); else fprintf(stderr, " a var\n"); #endif RestoreDBTerm(&(dbr->DBT), TRUE); if (dbr->Parent) { dbr->Parent = (DBProp)AddrAdjust((ADDR)(dbr->Parent)); } if (dbr->Code != NULL) dbr->Code = PtoOpAdjust(dbr->Code); if (dbr->Prev != NULL) dbr->Prev = DBRefAdjust(dbr->Prev); if (dbr->Next != NULL) dbr->Next = DBRefAdjust(dbr->Next); #ifdef DEBUG_RESTORE2 fprintf(stderr, "Recomputing masks\n"); #endif recompute_mask(dbr); } /* Restores a DB structure, as it was saved in the heap */ static void RestoreDB(DBEntry *pp) { register DBRef dbr; if (pp->First != NULL) pp->First = DBRefAdjust(pp->First); if (pp->Last != NULL) pp->Last = DBRefAdjust(pp->Last); if (pp->ArityOfDB) pp->FunctorOfDB = FuncAdjust(pp->FunctorOfDB); else pp->FunctorOfDB = (Functor) AtomAdjust((Atom)(pp->FunctorOfDB)); if (pp->F0 != NULL) pp->F0 = DBRefAdjust(pp->F0); if (pp->L0 != NULL) pp->L0 = DBRefAdjust(pp->L0); /* immediate update semantics */ dbr = pp->F0; /* While we have something in the data base, even if erased, restore it */ while (dbr) { RestoreDBEntry(dbr); if (dbr->n != NULL) dbr->n = DBRefAdjust(dbr->n); if (dbr->p != NULL) dbr->p = DBRefAdjust(dbr->p); dbr = dbr->n; } } /* * Restores a group of clauses for the same predicate, starting with First * and ending with Last, First may be equal to Last */ static void CleanClauses(yamop *First, yamop *Last, PredEntry *pp) { if (pp->PredFlags & LogUpdatePredFlag) { LogUpdClause *cl = ClauseCodeToLogUpdClause(First); while (cl != NULL) { RestoreLUClause(cl, pp); cl = cl->ClNext; } } else if (pp->PredFlags & MegaClausePredFlag) { MegaClause *cl = ClauseCodeToMegaClause(First); RestoreMegaClause(cl); } else if (pp->PredFlags & DynamicPredFlag) { yamop *cl = First; do { RestoreDynamicClause(ClauseCodeToDynamicClause(cl), pp); if (cl == Last) return; cl = NextDynamicClause(cl); } while (TRUE); } else { StaticClause *cl = ClauseCodeToStaticClause(First); do { RestoreStaticClause(cl); if (cl->ClCode == Last) return; cl = cl->ClNext; } while (TRUE); } } /* Restores a DB structure, as it was saved in the heap */ static void RestoreBB(BlackBoardEntry *pp, int int_key) { Term t = pp->Element; if (t) { if (!IsVarTerm(t)) { if (IsAtomicTerm(t)) { if (IsAtomTerm(t)) { pp->Element = AtomTermAdjust(t); } } else { RestoreLUClause((LogUpdClause *)DBRefOfTerm(t),NULL); } } } if (!int_key) { pp->KeyOfBB = AtomAdjust(pp->KeyOfBB); } if (pp->ModuleOfBB) { pp->ModuleOfBB = AtomTermAdjust(pp->ModuleOfBB); } } static void restore_static_array(StaticArrayEntry *ae) { Int sz = -ae->ArrayEArity; switch (ae->ArrayType) { case array_of_ints: case array_of_doubles: case array_of_chars: case array_of_uchars: return; case array_of_ptrs: { AtomEntry **base = (AtomEntry **)AddrAdjust((ADDR)(ae->ValueOfVE.ptrs)); Int i; ae->ValueOfVE.ptrs = base; if (ae != NULL) { for (i=0; iValueOfVE.atoms)); Int i; ae->ValueOfVE.atoms = base; if (ae != 0L) { for (i=0; iValueOfVE.dbrefs)); Int i; ae->ValueOfVE.dbrefs = base; if (ae != 0L) { for (i=0; iValueOfVE.lterms)); Int i; ae->ValueOfVE.lterms = base; if (ae != 0L) { for (i=0; i < sz; i++,base++) { Term reg = base->tlive; if (IsVarTerm(reg)) { CELL *var = (CELL *)reg; if (IsOldGlobalPtr(var)) { base->tlive = (CELL)PtoGloAdjust(var); } else { base->tlive = (CELL)PtoHeapCellAdjust(var); } } else if (IsAtomTerm(reg)) { base->tlive = AtomTermAdjust(reg); } else if (IsApplTerm(reg)) { CELL *db = RepAppl(reg); db = PtoGloAdjust(db); base->tlive = AbsAppl(db); } else if (IsApplTerm(reg)) { CELL *db = RepPair(reg); db = PtoGloAdjust(db); base->tlive = AbsPair(db); } reg = base->tstore; if (IsVarTerm(reg)) { base->tstore = (Term)GlobalAddrAdjust((ADDR)reg); } else if (IsAtomTerm(reg)) { base->tstore = AtomTermAdjust(reg); } else { DBTerm *db = (DBTerm *)RepAppl(reg); db = DBTermAdjust(db); RestoreDBTerm(db, TRUE); base->tstore = AbsAppl((CELL *)db); } } } } case array_of_terms: { DBTerm **base = (DBTerm **)AddrAdjust((ADDR)(ae->ValueOfVE.terms)); Int i; ae->ValueOfVE.terms = base; if (ae != 0L) { for (i=0; iModuleOfPred) { pp->ModuleOfPred = AtomTermAdjust(pp->ModuleOfPred); } if (pp->ArityOfPE) { if (pp->ModuleOfPred == IDB_MODULE) { if (pp->PredFlags & NumberDBPredFlag) { /* it's an integer, do nothing */ } else if (pp->PredFlags & AtomDBPredFlag) { pp->FunctorOfPred = (Functor)AtomAdjust((Atom)(pp->FunctorOfPred)); } else { pp->FunctorOfPred = FuncAdjust(pp->FunctorOfPred); } } else { pp->FunctorOfPred = FuncAdjust(pp->FunctorOfPred); } } else { pp->FunctorOfPred = (Functor)AtomAdjust((Atom)(pp->FunctorOfPred)); } if (!(pp->PredFlags & NumberDBPredFlag)) { if (pp->PredFlags & MultiFileFlag) { if (pp->src.file_srcs) pp->src.file_srcs = MFileAdjust(pp->src.file_srcs); } else { if (pp->src.OwnerFile) pp->src.OwnerFile = AtomAdjust(pp->src.OwnerFile); } } pp->OpcodeOfPred = Yap_opcode(Yap_op_from_opcode(pp->OpcodeOfPred)); if (pp->NextPredOfModule) { pp->NextPredOfModule = PtoPredAdjust(pp->NextPredOfModule); } if (pp->PredFlags & (AsmPredFlag|CPredFlag)) { /* assembly */ if (pp->CodeOfPred) { pp->CodeOfPred = PtoOpAdjust(pp->CodeOfPred); CleanClauses(pp->CodeOfPred, pp->CodeOfPred, pp); } } else { yamop *FirstC, *LastC; /* Prolog code */ if (pp->cs.p_code.FirstClause) pp->cs.p_code.FirstClause = PtoOpAdjust(pp->cs.p_code.FirstClause); if (pp->cs.p_code.LastClause) pp->cs.p_code.LastClause = PtoOpAdjust(pp->cs.p_code.LastClause); pp->CodeOfPred =PtoOpAdjust(pp->CodeOfPred); pp->cs.p_code.TrueCodeOfPred = PtoOpAdjust(pp->cs.p_code.TrueCodeOfPred); pp->cs.p_code.ExpandCode = Yap_opcode(_expand_index); flag = pp->PredFlags; FirstC = pp->cs.p_code.FirstClause; LastC = pp->cs.p_code.LastClause; /* We just have a fail here */ if (FirstC == NULL && LastC == NULL) { return; } #ifdef DEBUG_RESTORE2 fprintf(stderr, "at %ux Correcting clauses from %p to %p\n", *(OPCODE *) FirstC, FirstC, LastC); #endif CleanClauses(FirstC, LastC, pp); if (flag & IndexedPredFlag) { #ifdef DEBUG_RESTORE2 fprintf(stderr, "Correcting indexed code\n"); #endif if (flag & LogUpdatePredFlag) { CleanLUIndex(ClauseCodeToLogUpdIndex(pp->cs.p_code.TrueCodeOfPred), TRUE); } else { CleanSIndex(ClauseCodeToStaticIndex(pp->cs.p_code.TrueCodeOfPred), TRUE); } } else if (flag & DynamicPredFlag) { #ifdef DEBUG_RESTORE2 fprintf(stderr, "Correcting dynamic code\n"); #endif RestoreDynamicClause(ClauseCodeToDynamicClause(pp->cs.p_code.TrueCodeOfPred),pp); } } /* we are pointing at ourselves */ } /* * Restores all of the entries, for a particular atom, we only have problems * if we find code or data bases */ static void RestoreEntries(PropEntry *pp, int int_key) { while (!EndOfPAEntr(pp)) { switch(pp->KindOfPE) { case FunctorProperty: { FunctorEntry *fe = (FunctorEntry *)pp; Prop p0; fe->NextOfPE = PropAdjust(fe->NextOfPE); fe->NameOfFE = AtomAdjust(fe->NameOfFE); p0 = fe->PropsOfFE = PropAdjust(fe->PropsOfFE); if (!EndOfPAEntr(p0)) { /* at most one property */ CleanCode(RepPredProp(p0)); RepPredProp(p0)->NextOfPE = PropAdjust(RepPredProp(p0)->NextOfPE); } } break; case ValProperty: { ValEntry *ve = (ValEntry *)pp; Term tv = ve->ValueOfVE; ve->NextOfPE = PropAdjust(ve->NextOfPE); if (IsAtomTerm(tv)) ve->ValueOfVE = AtomTermAdjust(tv); } break; case HoldProperty: { HoldEntry *he = (HoldEntry *)pp; he->NextOfPE = PropAdjust(he->NextOfPE); } break; case ArrayProperty: { ArrayEntry *ae = (ArrayEntry *)pp; ae->NextOfPE = PropAdjust(ae->NextOfPE); if (ae->ArrayEArity < 0) { /* static array entry */ StaticArrayEntry *sae = (StaticArrayEntry *)ae; if (sae->NextAE) sae->NextAE = PtoArraySAdjust(sae->NextAE); restore_static_array(sae); } else { if (ae->NextAE) ae->NextAE = PtoArrayEAdjust(ae->NextAE); if (IsVarTerm(ae->ValueOfVE)) RESET_VARIABLE(&(ae->ValueOfVE)); else { CELL *ptr = RepAppl(ae->ValueOfVE); /* in fact it should just be a pointer to the global, but we'll be conservative. Notice that the variable should have been reset in restore_program mode. */ if (IsOldGlobalPtr(ptr)) { ae->ValueOfVE = AbsAppl(PtoGloAdjust(ptr)); } else if (IsOldCodeCellPtr(ptr)) { ae->ValueOfVE = AbsAppl(PtoHeapCellAdjust(ptr)); } else if (IsOldLocalInTRPtr(ptr)) { ae->ValueOfVE = AbsAppl(PtoLocAdjust(ptr)); } else if (IsOldTrailPtr(ptr)) { ae->ValueOfVE = AbsAppl(CellPtoTRAdjust(ptr)); } } } } break; case PEProp: { PredEntry *pe = (PredEntry *) pp; pe->NextOfPE = PropAdjust(pe->NextOfPE); CleanCode(pe); } break; case DBProperty: case CodeDBProperty: #ifdef DEBUG_RESTORE2 fprintf(stderr, "Correcting data base clause at %p\n", pp); #endif { DBEntry *de = (DBEntry *) pp; de->NextOfPE = PropAdjust(de->NextOfPE); RestoreDB(de); } break; case BBProperty: { BlackBoardEntry *bb = (BlackBoardEntry *) pp; bb->NextOfPE = PropAdjust(bb->NextOfPE); RestoreBB(bb, int_key); } break; case GlobalProperty: { GlobalEntry *gb = (GlobalEntry *) pp; Term gbt = gb->global; gb->NextOfPE = PropAdjust(gb->NextOfPE); gb->AtomOfGE = AtomEntryAdjust(gb->AtomOfGE); if (gb->NextGE) { gb->NextGE = GlobalEntryAdjust(gb->NextGE); } if (IsVarTerm(gbt)) { CELL *gbp = VarOfTerm(gbt); if (IsOldGlobalPtr(gbp)) gbp = PtoGloAdjust(gbp); else gbp = CellPtoHeapAdjust(gbp); gb->global = (CELL)gbp; } else if (IsPairTerm(gbt)) { gb->global = AbsPair(PtoGloAdjust(RepPair(gbt))); } else if (IsApplTerm(gbt)) { CELL *gbp = RepAppl(gbt); if (IsOldGlobalPtr(gbp)) gbp = PtoGloAdjust(gbp); else gbp = CellPtoHeapAdjust(gbp); gb->global = AbsAppl(gbp); } else if (IsAtomTerm(gbt)) { gb->global = AtomTermAdjust(gbt); } /* numbers need no adjusting */ } break; case OpProperty: { OpEntry *opp = (OpEntry *)pp; if (opp->NextOfPE) { opp->NextOfPE = PropAdjust(opp->NextOfPE); } opp->OpName = AtomAdjust(opp->OpName); if (opp->OpModule) { opp->OpModule = AtomTermAdjust(opp->OpModule); } if (opp->OpNext) { opp->OpNext = OpEntryAdjust(opp->OpNext); } } break; case ModProperty: { ModEntry *me = (ModEntry *)pp; if (me->NextOfPE) { me->NextOfPE = PropAdjust(me->NextOfPE); } if (me->PredForME) { me->PredForME = PtoPredAdjust(me->PredForME); } me->AtomOfME = AtomAdjust(me->AtomOfME); if (me->NextME) me->NextME = (struct mod_entry *) AddrAdjust((ADDR)me->NextME); } break; case ExpProperty: pp->NextOfPE = PropAdjust(pp->NextOfPE); break; case WideAtomProperty: pp->NextOfPE = PropAdjust(pp->NextOfPE); break; default: /* OOPS */ Yap_Error(SYSTEM_ERROR, TermNil, "Invalid Atom Property %d at %p", pp->KindOfPE, pp); return; } pp = RepProp(pp->NextOfPE); } } static void RestoreAtom(AtomEntry *at) { AtomEntry *nat; /* this should be done before testing for wide atoms */ at->PropsOfAE = PropAdjust(at->PropsOfAE); #if DEBUG_RESTORE2 /* useful during debug */ if (IsWideAtom(AbsAtom(at))) fprintf(errout, "Restoring %S\n", at->WStrOfAE); else fprintf(errout, "Restoring %s\n", at->StrOfAE); #endif RestoreEntries(RepProp(at->PropsOfAE), FALSE); /* cannot use AtomAdjust without breaking agc */ nat = RepAtom(at->NextOfAE); if (nat) at->NextOfAE = AbsAtom(AtomEntryAdjust(nat)); }