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yap-6.3/H/rheap.h
vsc 1fa46c6051 sveral updates 
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1415 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2005-10-28 17:38:50 +00:00

1130 lines
37 KiB
C
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/*************************************************************************
* *
* 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: 2005-10-28 17:38:50 $,$Author: vsc $ *
* $Log: not supported by cvs2svn $
* 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
/* 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,sp);
ipc->opc = Yap_opcode(_expand_clauses);
ipc->u.sp.p = PtoPredAdjust(ipc->u.sp.p);
if (ipc->u.sp.sprev) {
ipc->u.sp.sprev = PtoOpAdjust(ipc->u.sp.sprev);
}
if (ipc->u.sp.snext) {
ipc->u.sp.snext = PtoOpAdjust(ipc->u.sp.snext);
}
for (i = 0; i < ipc->u.sp.s1; i++, st++) {
if (*st) {
*st = PtoOpAdjust(*st);
}
}
}
/* restore the failcodes */
static void
restore_codes(void)
{
Yap_heap_regs->heap_top = AddrAdjust(OldHeapTop);
#ifdef YAPOR
Yap_heap_regs->seq_def = TRUE;
Yap_heap_regs->getwork_code.opc = Yap_opcode(_getwork);
INIT_YAMOP_LTT(&(Yap_heap_regs->getwork_code), 0);
Yap_heap_regs->getwork_seq_code.opc = Yap_opcode(_getwork_seq);
INIT_YAMOP_LTT(&(Yap_heap_regs->getwork_seq_code), 0);
Yap_heap_regs->getwork_first_time_code.opc = Yap_opcode(_getwork_first_time);
#endif /* YAPOR */
#ifdef TABLING
Yap_heap_regs->table_load_answer_code.opc = Yap_opcode(_table_load_answer);
Yap_heap_regs->table_try_answer_code.opc = Yap_opcode(_table_try_answer);
Yap_heap_regs->table_answer_resolution_code.opc = Yap_opcode(_table_answer_resolution);
Yap_heap_regs->table_completion_code.opc = Yap_opcode(_table_completion);
#ifdef YAPOR
INIT_YAMOP_LTT(&(Yap_heap_regs->table_load_answer_code), 0);
INIT_YAMOP_LTT(&(Yap_heap_regs->table_try_answer_code), 0);
INIT_YAMOP_LTT(&(Yap_heap_regs->table_completion_code), 0);
INIT_YAMOP_LTT(&(Yap_heap_regs->table_answer_resolution_code), 0);
#endif /* YAPOR */
#endif /* TABLING */
Yap_heap_regs->expand_op_code = Yap_opcode(_expand_index);
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.sp.snext;
}
}
Yap_heap_regs->failcode->opc = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_1 = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_2 = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_3 = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_4 = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_5 = Yap_opcode(_op_fail);
Yap_heap_regs->failcode_6 = Yap_opcode(_op_fail);
Yap_heap_regs->env_for_trustfail_code.op = Yap_opcode(_call);
Yap_heap_regs->trustfailcode->opc = Yap_opcode(_trust_fail);
Yap_heap_regs->env_for_yes_code.op = Yap_opcode(_call);
Yap_heap_regs->yescode->opc = Yap_opcode(_Ystop);
Yap_heap_regs->undef_op = Yap_opcode(_undef_p);
Yap_heap_regs->index_op = Yap_opcode(_index_pred);
Yap_heap_regs->fail_op = Yap_opcode(_op_fail);
Yap_heap_regs->nocode->opc = Yap_opcode(_Nstop);
#ifdef YAPOR
INIT_YAMOP_LTT(&(Yap_heap_regs->nocode), 1);
INIT_YAMOP_LTT(&(Yap_heap_regs->rtrycode), 1);
#endif /* YAPOR */
((yamop *)(&Yap_heap_regs->rtrycode))->opc = Yap_opcode(_retry_and_mark);
if (((yamop *)(&Yap_heap_regs->rtrycode))->u.ld.d != NIL)
((yamop *)(&Yap_heap_regs->rtrycode))->u.ld.d =
PtoOpAdjust(((yamop *)(&Yap_heap_regs->rtrycode))->u.ld.d);
{
int arity;
arity = Yap_heap_regs->clausecode->arity;
if (Yap_heap_regs->clausecode->clause != NIL)
Yap_heap_regs->clausecode->clause =
PtoOpAdjust(Yap_heap_regs->clausecode->clause);
if (arity) {
Yap_heap_regs->clausecode->func =
FuncAdjust(Yap_heap_regs->clausecode->func);
} else {
/* an atom */
Yap_heap_regs->clausecode->func =
(Functor)AtomAdjust((Atom)(Yap_heap_regs->clausecode->func));
}
}
/* restore consult stack. It consists of heap pointers, so it
is easy to fix.
*/
Yap_heap_regs->consultlow =
ConsultObjAdjust(Yap_heap_regs->consultlow);
Yap_heap_regs->consultbase =
ConsultObjAdjust(Yap_heap_regs->consultbase);
Yap_heap_regs->consultsp =
ConsultObjAdjust(Yap_heap_regs->consultsp);
{
/* we assume all pointers have the same size */
register consult_obj *pt = Yap_heap_regs->consultsp;
while (pt <
Yap_heap_regs->consultlow+Yap_heap_regs->consultcapacity) {
pt->p = PropAdjust(pt->p);
pt ++;
}
}
#if USE_THREADED_CODE
Yap_heap_regs->op_rtable = (opentry *)
CodeAddrAdjust((CODEADDR)(Yap_heap_regs->op_rtable));
#endif
if (Yap_heap_regs->atprompt != NIL) {
Yap_heap_regs->atprompt =
AtomAdjust(Yap_heap_regs->atprompt);
}
if (Yap_heap_regs->char_conversion_table != NULL) {
Yap_heap_regs->char_conversion_table = (char *)
AddrAdjust((ADDR)Yap_heap_regs->char_conversion_table);
}
if (Yap_heap_regs->char_conversion_table2 != NULL) {
Yap_heap_regs->char_conversion_table2 = (char *)
AddrAdjust((ADDR)Yap_heap_regs->char_conversion_table2);
}
if (Yap_heap_regs->dead_clauses != NULL) {
Yap_heap_regs->dead_clauses = (DeadClause *)
AddrAdjust((ADDR)(Yap_heap_regs->dead_clauses));
}
Yap_heap_regs->retry_recorded_k_code =
PtoOpAdjust(Yap_heap_regs->retry_recorded_k_code);
Yap_heap_regs->retry_c_recordedp_code =
PtoOpAdjust(Yap_heap_regs->retry_c_recordedp_code);
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));
}
}
}
}
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);
}
}
}
}
}
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));
}
}
}
}
{
/* adjust atoms in atom table */
unsigned int i = 0;
for (i = 0; i < Yap_heap_regs->no_of_modules; i++) {
Yap_heap_regs->module_name[i] = AtomTermAdjust(Yap_heap_regs->module_name[i]);
if (Yap_heap_regs->module_pred[i]) {
Yap_heap_regs->module_pred[i] = PtoPredAdjust(Yap_heap_regs->module_pred[i]);
}
}
}
Yap_heap_regs->atom_abol = AtomAdjust(Yap_heap_regs->atom_abol);
Yap_heap_regs->atom_append = AtomAdjust(Yap_heap_regs->atom_append);
Yap_heap_regs->atom_array = AtomAdjust(Yap_heap_regs->atom_array);
Yap_heap_regs->atom_assert = AtomAdjust(Yap_heap_regs->atom_assert);
Yap_heap_regs->atom_alarm = AtomAdjust(Yap_heap_regs->atom_alarm);
#ifdef COROUTINING
Yap_heap_regs->atom_att = AtomAdjust(Yap_heap_regs->atom_att);
#endif
Yap_heap_regs->atom_b = AtomAdjust(Yap_heap_regs->atom_b);
Yap_heap_regs->atom_break = AtomAdjust(Yap_heap_regs->atom_break);
Yap_heap_regs->atom_call = AtomAdjust(Yap_heap_regs->atom_call);
Yap_heap_regs->atom_catch = AtomAdjust(Yap_heap_regs->atom_catch);
Yap_heap_regs->atom_comma = AtomAdjust(Yap_heap_regs->atom_comma);
Yap_heap_regs->atom_cpu_time = AtomAdjust(Yap_heap_regs->atom_cpu_time);
Yap_heap_regs->atom_csult = AtomAdjust(Yap_heap_regs->atom_csult);
Yap_heap_regs->atom_cut = AtomAdjust(Yap_heap_regs->atom_cut);
Yap_heap_regs->atom_cut_by = AtomAdjust(Yap_heap_regs->atom_cut_by);
#ifdef EUROTRA
#ifdef SFUNC
Yap_heap_regs->atom_dollar_undef = AtomAdjust(Yap_heap_regs->atom_dollar_undef);
#endif
#endif
Yap_heap_regs->atom_dbref = AtomAdjust(Yap_heap_regs->atom_dbref);
Yap_heap_regs->atom_e = AtomAdjust(Yap_heap_regs->atom_e);
Yap_heap_regs->atom_e_q = AtomAdjust(Yap_heap_regs->atom_e_q);
Yap_heap_regs->atom_eof = AtomAdjust(Yap_heap_regs->atom_eof);
#ifdef EUROTRA
Yap_heap_regs->atom_f_b = AtomAdjust(Yap_heap_regs->atom_f_b);
#endif
Yap_heap_regs->atom_fail = AtomAdjust(Yap_heap_regs->atom_fail);
Yap_heap_regs->atom_false = AtomAdjust(Yap_heap_regs->atom_false);
Yap_heap_regs->atom_fast = AtomAdjust(Yap_heap_regs->atom_fast);
Yap_heap_regs->atom_g_t = AtomAdjust(Yap_heap_regs->atom_g_t);
Yap_heap_regs->atom_gc = AtomAdjust(Yap_heap_regs->atom_gc);
Yap_heap_regs->atom_gc_margin = AtomAdjust(Yap_heap_regs->atom_gc_margin);
Yap_heap_regs->atom_gc_trace = AtomAdjust(Yap_heap_regs->atom_gc_trace);
Yap_heap_regs->atom_gc_verbose = AtomAdjust(Yap_heap_regs->atom_gc_verbose);
Yap_heap_regs->atom_gc_very_verbose = AtomAdjust(Yap_heap_regs->atom_gc_very_verbose);
Yap_heap_regs->atom_global = AtomAdjust(Yap_heap_regs->atom_global);
Yap_heap_regs->atom_heap_used = AtomAdjust(Yap_heap_regs->atom_heap_used);
Yap_heap_regs->atom_inf = AtomAdjust(Yap_heap_regs->atom_inf);
Yap_heap_regs->atom_l_t = AtomAdjust(Yap_heap_regs->atom_l_t);
Yap_heap_regs->atom_local = AtomAdjust(Yap_heap_regs->atom_local);
Yap_heap_regs->atom_meta_call = AtomAdjust(Yap_heap_regs->atom_meta_call);
Yap_heap_regs->atom_minus = AtomAdjust(Yap_heap_regs->atom_minus);
Yap_heap_regs->atom_multi_file = AtomAdjust(Yap_heap_regs->atom_multi_file);
Yap_heap_regs->atom_nan = AtomAdjust(Yap_heap_regs->atom_nan);
Yap_heap_regs->atom_otherwise = AtomAdjust(Yap_heap_regs->atom_otherwise);
Yap_heap_regs->atom_pi = AtomAdjust(Yap_heap_regs->atom_pi);
Yap_heap_regs->atom_plus = AtomAdjust(Yap_heap_regs->atom_plus);
Yap_heap_regs->atom_portray = AtomAdjust(Yap_heap_regs->atom_portray);
Yap_heap_regs->atom_profile = AtomAdjust(Yap_heap_regs->atom_profile);
Yap_heap_regs->atom_random = AtomAdjust(Yap_heap_regs->atom_random);
Yap_heap_regs->atom_read = AtomAdjust(Yap_heap_regs->atom_read);
Yap_heap_regs->atom_repeat = AtomAdjust(Yap_heap_regs->atom_repeat);
Yap_heap_regs->atom_restore_regs = AtomAdjust(Yap_heap_regs->atom_restore_regs);
#if HAVE_SIGACTION
Yap_heap_regs->atom_sig_pending = AtomAdjust(Yap_heap_regs->atom_sig_pending);
#endif
Yap_heap_regs->atom_stack_free = AtomAdjust(Yap_heap_regs->atom_stack_free);
Yap_heap_regs->atom_true = AtomAdjust(Yap_heap_regs->atom_true);
Yap_heap_regs->atom_user = AtomAdjust(Yap_heap_regs->atom_user);
Yap_heap_regs->atom_usr_err = AtomAdjust(Yap_heap_regs->atom_usr_err);
Yap_heap_regs->atom_usr_in = AtomAdjust(Yap_heap_regs->atom_usr_in);
Yap_heap_regs->atom_usr_out = AtomAdjust(Yap_heap_regs->atom_usr_out);
Yap_heap_regs->atom_version_number = AtomAdjust(Yap_heap_regs->atom_version_number);
Yap_heap_regs->atom_write = AtomAdjust(Yap_heap_regs->atom_write);
#ifdef USE_SOCKET
Yap_heap_regs->functor_af_inet = FuncAdjust(Yap_heap_regs->functor_af_inet);
Yap_heap_regs->functor_af_local = FuncAdjust(Yap_heap_regs->functor_af_local);
Yap_heap_regs->functor_af_unix = FuncAdjust(Yap_heap_regs->functor_af_unix);
#endif
Yap_heap_regs->functor_alt_not = FuncAdjust(Yap_heap_regs->functor_alt_not);
Yap_heap_regs->functor_arrow = FuncAdjust(Yap_heap_regs->functor_arrow);
Yap_heap_regs->functor_assert = FuncAdjust(Yap_heap_regs->functor_assert);
Yap_heap_regs->functor_at_found_one = FuncAdjust(Yap_heap_regs->functor_at_found_one);
#ifdef COROUTINING
Yap_heap_regs->functor_att_goal = FuncAdjust(Yap_heap_regs->functor_att_goal);
#endif
Yap_heap_regs->functor_braces = FuncAdjust(Yap_heap_regs->functor_braces);
Yap_heap_regs->functor_call = FuncAdjust(Yap_heap_regs->functor_call);
Yap_heap_regs->functor_cut_by = FuncAdjust(Yap_heap_regs->functor_cut_by);
Yap_heap_regs->functor_comma = FuncAdjust(Yap_heap_regs->functor_comma);
Yap_heap_regs->functor_creep = FuncAdjust(Yap_heap_regs->functor_creep);
Yap_heap_regs->functor_csult = FuncAdjust(Yap_heap_regs->functor_csult);
Yap_heap_regs->functor_eq = FuncAdjust(Yap_heap_regs->functor_eq);
Yap_heap_regs->functor_execute_in_mod = FuncAdjust(Yap_heap_regs->functor_execute_in_mod);
Yap_heap_regs->functor_execute_within = FuncAdjust(Yap_heap_regs->functor_execute_within);
Yap_heap_regs->functor_g_atom = FuncAdjust(Yap_heap_regs->functor_g_atom);
Yap_heap_regs->functor_g_atomic = FuncAdjust(Yap_heap_regs->functor_g_atomic);
Yap_heap_regs->functor_g_compound = FuncAdjust(Yap_heap_regs->functor_g_compound);
Yap_heap_regs->functor_g_float = FuncAdjust(Yap_heap_regs->functor_g_float);
Yap_heap_regs->functor_g_format_at = FuncAdjust(Yap_heap_regs->functor_g_format_at);
Yap_heap_regs->functor_g_integer = FuncAdjust(Yap_heap_regs->functor_g_integer);
Yap_heap_regs->functor_g_number = FuncAdjust(Yap_heap_regs->functor_g_number);
Yap_heap_regs->functor_g_primitive = FuncAdjust(Yap_heap_regs->functor_g_primitive);
Yap_heap_regs->functor_g_var = FuncAdjust(Yap_heap_regs->functor_g_var);
Yap_heap_regs->functor_last_execute_within = FuncAdjust(Yap_heap_regs->functor_last_execute_within);
Yap_heap_regs->functor_list = FuncAdjust(Yap_heap_regs->functor_list);
Yap_heap_regs->functor_mega_clause = FuncAdjust(Yap_heap_regs->functor_mega_clause);
Yap_heap_regs->functor_module = FuncAdjust(Yap_heap_regs->functor_module);
Yap_heap_regs->functor_multi_file_clause = FuncAdjust(Yap_heap_regs->functor_multi_file_clause);
#ifdef MULTI_ASSIGNMENT_VARIABLES
Yap_heap_regs->functor_mutable = FuncAdjust(Yap_heap_regs->functor_mutable);
#endif
Yap_heap_regs->functor_not = FuncAdjust(Yap_heap_regs->functor_not);
Yap_heap_regs->functor_or = FuncAdjust(Yap_heap_regs->functor_or);
Yap_heap_regs->functor_portray = FuncAdjust(Yap_heap_regs->functor_portray);
Yap_heap_regs->functor_query = FuncAdjust(Yap_heap_regs->functor_query);
Yap_heap_regs->functor_static_clause = FuncAdjust(Yap_heap_regs->functor_static_clause);
Yap_heap_regs->functor_stream = FuncAdjust(Yap_heap_regs->functor_stream);
Yap_heap_regs->functor_stream_pos = FuncAdjust(Yap_heap_regs->functor_stream_pos);
Yap_heap_regs->functor_stream_eOS = FuncAdjust(Yap_heap_regs->functor_stream_eOS);
Yap_heap_regs->functor_change_module = FuncAdjust(Yap_heap_regs->functor_change_module);
Yap_heap_regs->functor_current_module = FuncAdjust(Yap_heap_regs->functor_current_module);
Yap_heap_regs->functor_u_minus = FuncAdjust(Yap_heap_regs->functor_u_minus);
Yap_heap_regs->functor_u_plus = FuncAdjust(Yap_heap_regs->functor_u_plus);
Yap_heap_regs->functor_v_bar = FuncAdjust(Yap_heap_regs->functor_v_bar);
Yap_heap_regs->functor_var = FuncAdjust(Yap_heap_regs->functor_var);
#ifdef EUROTRA
Yap_heap_regs->term_dollar_u = AtomTermAdjust(Yap_heap_regs->term_dollar_u);
#endif
Yap_heap_regs->term_prolog = AtomTermAdjust(Yap_heap_regs->term_prolog);
Yap_heap_regs->term_refound_var = AtomTermAdjust(Yap_heap_regs->term_refound_var);
Yap_heap_regs->user_module = AtomTermAdjust(Yap_heap_regs->user_module);
Yap_heap_regs->idb_module = AtomTermAdjust(Yap_heap_regs->idb_module);
Yap_heap_regs->attributes_module = AtomTermAdjust(Yap_heap_regs->attributes_module);
Yap_heap_regs->charsio_module = AtomTermAdjust(Yap_heap_regs->charsio_module);
Yap_heap_regs->terms_module = AtomTermAdjust(Yap_heap_regs->terms_module);
if (Yap_heap_regs->file_aliases != NULL) {
Yap_heap_regs->yap_streams =
(struct stream_desc *)AddrAdjust((ADDR)Yap_heap_regs->yap_streams);
}
if (Yap_heap_regs->file_aliases != NULL) {
Yap_heap_regs->file_aliases =
(struct AliasDescS *)AddrAdjust((ADDR)Yap_heap_regs->file_aliases);
}
Yap_heap_regs->yap_lib_dir =
(char *)AddrAdjust((ADDR)Yap_heap_regs->yap_lib_dir);
Yap_heap_regs->pred_goal_expansion =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_goal_expansion);
Yap_heap_regs->pred_meta_call =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_meta_call);
Yap_heap_regs->pred_dollar_catch =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_dollar_catch);
Yap_heap_regs->pred_recorded_with_key =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_recorded_with_key);
Yap_heap_regs->pred_log_upd_clause =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_log_upd_clause);
Yap_heap_regs->pred_log_upd_clause0 =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_log_upd_clause0);
Yap_heap_regs->pred_static_clause =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_static_clause);
Yap_heap_regs->pred_throw =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_throw);
Yap_heap_regs->pred_handle_throw =
(PredEntry *)AddrAdjust((ADDR)Yap_heap_regs->pred_handle_throw);
if (Yap_heap_regs->undef_code != NULL)
Yap_heap_regs->undef_code = (PredEntry *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->undef_code));
if (Yap_heap_regs->creep_code != NULL)
Yap_heap_regs->creep_code = (PredEntry *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->creep_code));
if (Yap_heap_regs->spy_code != NULL)
Yap_heap_regs->spy_code = (PredEntry *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->spy_code));
#ifdef COROUTINING
if (Yap_heap_regs->wake_up_code != NULL)
Yap_heap_regs->wake_up_code = (PredEntry *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->wake_up_code));
#if !defined(THREADS)
Yap_heap_regs->wl.mutable_list =
AbsAppl(PtoGloAdjust(RepAppl(Yap_heap_regs->wl.mutable_list)));
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);
}
#endif
#endif
if (Yap_heap_regs->last_wtime != NULL)
Yap_heap_regs->last_wtime = (void *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->last_wtime));
Yap_heap_regs->db_erased_marker =
DBRefAdjust(Yap_heap_regs->db_erased_marker);
Yap_heap_regs->hash_chain =
(AtomHashEntry *)PtoHeapCellAdjust((CELL *)(Yap_heap_regs->hash_chain));
}
/* Restoring the heap */
/* adjusts terms stored in the data base, when they have no variables */
static Term
AdjustDBTerm(Term trm, Term *p_base)
{
if (IsAtomTerm(trm))
return AtomTermAdjust(trm);
if (IsPairTerm(trm)) {
Term *p;
p = PtoHeapCellAdjust(RepPair(trm));
if (p > p_base) {
p[0] = AdjustDBTerm(p[0], p);
p[1] = AdjustDBTerm(p[1], p);
}
return AbsPair(p);
}
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)
{
#ifdef COROUTINING
if (dbr->attachments)
dbr->attachments = AdjustDBTerm(dbr->attachments, dbr->Contents);
#endif
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);
}
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));
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->KindOfPE & LogUpdDBBit) {
dbr = pp->First;
/* While we have something in the data base, restore it */
while (dbr) {
RestoreDBEntry(dbr);
dbr = dbr->Next;
}
} else {
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;
}
}
}
#include "rclause.h"
/* Restores a prolog clause, in its compiled form */
static void
RestoreStaticClause(StaticClause *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->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);
}
/* Restores a prolog clause, in its compiled form */
static void
RestoreMegaClause(MegaClause *cl, PredEntry *pp)
/*
* Cl points to the start of the code, IsolFlag tells if we have a single
* clause for this predicate or not
*/
{
cl->ClPred = PtoPredAdjust(cl->ClPred);
restore_opcodes(cl->ClCode);
}
/* 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);
}
/* 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);
}
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);
}
/*
* 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, pp);
} 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, pp);
if (cl->ClCode == Last) return;
cl = cl->ClNext;
} while (TRUE);
}
}
static void
CleanLUIndex(LogUpdIndex *idx)
{
idx->ClRefCount = 0;
INIT_LOCK(idx->ClLock);
if (idx->ClFlags & SwitchRootMask) {
idx->u.pred = PtoPredAdjust(idx->u.pred);
} else {
idx->u.ParentIndex = LUIndexAdjust(idx->u.ParentIndex);
}
if (idx->SiblingIndex) {
idx->SiblingIndex = LUIndexAdjust(idx->SiblingIndex);
CleanLUIndex(idx->SiblingIndex);
}
if (idx->ChildIndex) {
idx->ChildIndex = LUIndexAdjust(idx->ChildIndex);
CleanLUIndex(idx->ChildIndex);
}
if (!(idx->ClFlags & SwitchTableMask)) {
restore_opcodes(idx->ClCode);
}
}
static void
CleanSIndex(StaticIndex *idx)
{
if (idx->SiblingIndex) {
idx->SiblingIndex = SIndexAdjust(idx->SiblingIndex);
CleanSIndex(idx->SiblingIndex);
}
if (idx->ChildIndex) {
idx->ChildIndex = SIndexAdjust(idx->ChildIndex);
CleanSIndex(idx->ChildIndex);
}
if (!(idx->ClFlags & SwitchTableMask)) {
restore_opcodes(idx->ClCode);
}
}
/* Restores a DB structure, as it was saved in the heap */
static void
RestoreBB(BlackBoardEntry *pp)
{
Term t = pp->Element;
if (t) {
if (!IsVarTerm(t) && !IsAtomicTerm(t)) {
RestoreLUClause((LogUpdClause *)DBRefOfTerm(t),NULL);
}
}
pp->KeyOfBB = AtomAdjust(pp->KeyOfBB);
}
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; i<sz; i++) {
AtomEntry *reg = *base;
if (reg == NULL) {
base++;
} else if (IsOldCode((CELL)reg)) {
*base++ = AtomEntryAdjust(reg);
} else if (IsOldLocalInTR((CELL)reg)) {
*base++ = (AtomEntry *)LocalAddrAdjust((ADDR)reg);
} else if (IsOldGlobal((CELL)reg)) {
*base++ = (AtomEntry *)GlobalAddrAdjust((ADDR)reg);
} else if (IsOldDelay((CELL)reg)) {
*base++ = (AtomEntry *)DelayAddrAdjust((ADDR)reg);
} else if (IsOldTrail((CELL)reg)) {
*base++ = (AtomEntry *)TrailAddrAdjust((ADDR)reg);
} else {
/* oops */
base++;
}
}
}
}
return;
case array_of_atoms:
{
Term *base = (Term *)AddrAdjust((ADDR)(ae->ValueOfVE.atoms));
Int i;
ae->ValueOfVE.atoms = base;
if (ae != 0L) {
for (i=0; i<sz; i++) {
Term reg = *base;
if (reg == 0L) {
base++;
} else {
*base++ = AtomTermAdjust(reg);
}
}
}
}
return;
case array_of_dbrefs:
{
Term *base = (Term *)AddrAdjust((ADDR)(ae->ValueOfVE.dbrefs));
Int i;
ae->ValueOfVE.dbrefs = base;
if (ae != 0L) {
for (i=0; i<sz; i++) {
Term reg = *base;
if (reg == 0L) {
base++;
} else {
*base++ = AbsAppl(PtoHeapCellAdjust(RepAppl(reg)));
}
}
}
}
return;
case array_of_nb_terms:
{
live_term *base = (live_term *)AddrAdjust((ADDR)(ae->ValueOfVE.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);
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; i<sz; i++) {
DBTerm *reg = *base;
if (reg == NULL) {
base++;
} else {
*base++ = reg = DBTermAdjust(reg);
RestoreDBTerm(reg);
}
}
}
}
return;
}
}
/*
* Clean all the code for a particular predicate, this can get a bit tricky,
* because of the indexing code
*/
static void
CleanCode(PredEntry *pp)
{
CELL flag;
/* Init takes care of the first 2 cases */
if (pp->ModuleOfPred) {
pp->ModuleOfPred = AtomTermAdjust(pp->ModuleOfPred);
}
if (pp->ArityOfPE) {
if (pp->ModuleOfPred == IDB_MODULE) {
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->ModuleOfPred != IDB_MODULE) {
if (pp->src.OwnerFile && pp->ModuleOfPred != IDB_MODULE)
pp->src.OwnerFile = AtomAdjust(pp->src.OwnerFile);
}
if (!(pp->PredFlags & NumberDBPredFlag)) {
pp->src.OwnerFile = AtomAdjust(pp->src.OwnerFile);
}
pp->OpcodeOfPred = Yap_opcode(Yap_op_from_opcode(pp->OpcodeOfPred));
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);
if (pp->NextPredOfModule)
pp->NextPredOfModule = PtoPredAdjust(pp->NextPredOfModule);
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));
} else {
CleanSIndex(ClauseCodeToStaticIndex(pp->cs.p_code.TrueCodeOfPred));
}
} 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)
{
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);
while (!EndOfPAEntr(p0)) {
CleanCode(RepPredProp(p0));
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 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 (IsOldDelayPtr(ptr)) {
ae->ValueOfVE = AbsAppl(PtoDelayAdjust(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 LogUpdDBProperty:
case CodeLogUpdDBProperty:
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);
if (HDiff)
RestoreDB(de);
}
break;
case BBProperty:
{
BlackBoardEntry *bb = (BlackBoardEntry *) pp;
bb->NextOfPE =
PropAdjust(bb->NextOfPE);
if (HDiff)
RestoreBB(bb);
}
break;
case OpProperty:
{
OpEntry *opp = (OpEntry *)pp;
if (opp->OpModule) {
opp->OpModule = AtomTermAdjust(opp->OpModule);
}
}
case ExpProperty:
case ModProperty:
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);
}
}
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