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yap-6.3/C/stdpreds.c

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/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V. Santos Costa and Universidade do Porto 1985-- *
* *
**************************************************************************
* *
* File: stdpreds.c *
* comments: General-purpose C implemented system predicates *
* *
2014-11-25 12:03:48 +00:00
* Last rev: $Date: 2008-07-24 16:02:00 $,$Author: vsc $
**
* $Log: not supported by cvs2svn $
* Revision 1.131 2008/06/12 10:55:52 vsc
* fix syntax error messages
*
* Revision 1.130 2008/04/06 11:53:02 vsc
* fix some restore bugs
*
* Revision 1.129 2008/03/15 12:19:33 vsc
* fix flags
*
* Revision 1.128 2008/02/15 12:41:33 vsc
* more fixes to modules
*
* Revision 1.127 2008/02/13 10:15:35 vsc
* fix some bugs from yesterday plus improve support for modules in
* operators.
*
* Revision 1.126 2008/02/07 23:09:13 vsc
* don't break ISO standard in current_predicate/1.
* Include Nicos flag.
*
* Revision 1.125 2008/01/23 17:57:53 vsc
* valgrind it!
* enable atom garbage collection.
*
* Revision 1.124 2007/11/26 23:43:08 vsc
* fixes to support threads and assert correctly, even if inefficiently.
*
* Revision 1.123 2007/11/06 17:02:12 vsc
* compile ground terms away.
*
* Revision 1.122 2007/10/18 08:24:16 vsc
* fix global variables
*
* Revision 1.121 2007/10/10 09:44:24 vsc
* some more fixes to make YAP swi compatible
* fix absolute_file_name (again)
* fix setarg
*
* Revision 1.120 2007/10/08 23:02:15 vsc
* minor fixes
*
* Revision 1.119 2007/04/18 23:01:16 vsc
* fix deadlock when trying to create a module with the same name as a
* predicate (for now, just don't lock modules). obs Paulo Moura.
*
* Revision 1.118 2007/02/26 10:41:40 vsc
* fix prolog_flags for chr.
*
* Revision 1.117 2007/01/28 14:26:37 vsc
* WIN32 support
*
* Revision 1.116 2006/12/13 16:10:23 vsc
* several debugger and CLP(BN) improvements.
*
* Revision 1.115 2006/11/28 13:46:41 vsc
* fix wide_char support for name/2.
*
* Revision 1.114 2006/11/27 17:42:03 vsc
* support for UNICODE, and other bug fixes.
*
* Revision 1.113 2006/11/16 14:26:00 vsc
* fix handling of infinity in name/2 and friends.
*
* Revision 1.112 2006/11/08 01:56:47 vsc
* fix argument order in db statistics.
*
* Revision 1.111 2006/11/06 18:35:04 vsc
* 1estranha
*
* Revision 1.110 2006/10/10 14:08:17 vsc
* small fixes on threaded implementation.
*
* Revision 1.109 2006/09/15 19:32:47 vsc
* ichanges for QSAR
*
* Revision 1.108 2006/09/01 20:14:42 vsc
* more fixes for global data-structures.
* statistics on atom space.
*
* Revision 1.107 2006/08/22 16:12:46 vsc
* global variables
*
* Revision 1.106 2006/08/07 18:51:44 vsc
* fix garbage collector not to try to garbage collect when we ask for large
* chunks of stack in a single go.
*
* Revision 1.105 2006/06/05 19:36:00 vsc
* hacks
*
* Revision 1.104 2006/05/19 14:31:32 vsc
* get rid of IntArrays and FloatArray code.
* include holes when calculating memory usage.
*
* Revision 1.103 2006/05/18 16:33:05 vsc
* fix info reported by memory manager under DL_MALLOC and SYSTEM_MALLOC
*
* Revision 1.102 2006/04/28 17:53:44 vsc
* fix the expand_consult patch
*
* Revision 1.101 2006/04/28 13:23:23 vsc
* fix number of overflow bugs affecting threaded version
* make current_op faster.
*
* Revision 1.100 2006/02/05 02:26:35 tiagosoares
* MYDDAS: Top Level Functionality
*
* Revision 1.99 2006/02/05 02:17:54 tiagosoares
* MYDDAS: Top Level Functionality
*
* Revision 1.98 2005/12/17 03:25:39 vsc
* major changes to support online event-based profiling
* improve error discovery and restart on scanner.
*
* Revision 1.97 2005/11/22 11:25:59 tiagosoares
* support for the MyDDAS interface library
*
* Revision 1.96 2005/10/28 17:38:49 vsc
* sveral updates
*
* Revision 1.95 2005/10/21 16:09:02 vsc
* SWI compatible module only operators
*
* Revision 1.94 2005/09/08 22:06:45 rslopes
* BEAM for YAP update...
*
* Revision 1.93 2005/08/04 15:45:53 ricroc
* TABLING NEW: support to limit the table space size
*
* Revision 1.92 2005/07/20 13:54:27 rslopes
* solved warning: cast from pointer to integer of different size
*
* Revision 1.91 2005/07/06 19:33:54 ricroc
2014-11-25 12:03:48 +00:00
* TABLING: answers for completed calls can now be obtained by loading (new
*option) or executing (default) them from the trie data structure.
*
* Revision 1.90 2005/07/06 15:10:14 vsc
* improvements to compiler: merged instructions and fixes for ->
*
* Revision 1.89 2005/05/26 18:01:11 rslopes
* *** empty log message ***
*
* Revision 1.88 2005/04/27 20:09:25 vsc
* indexing code could get confused with suspension points
* some further improvements on oveflow handling
* fix paths in Java makefile
* changs to support gibbs sampling in CLP(BN)
*
* Revision 1.87 2005/04/07 17:48:55 ricroc
2014-11-25 12:03:48 +00:00
* Adding tabling support for mixed strategy evaluation (batched and local
*scheduling)
* UPDATE: compilation flags -DTABLING_BATCHED_SCHEDULING and
*-DTABLING_LOCAL_SCHEDULING removed. To support tabling use -DTABLING in the
*Makefile or --enable-tabling in configure.
* NEW: yap_flag(tabling_mode,MODE) changes the tabling execution mode of all
*tabled predicates to MODE (batched, local or default).
* NEW: tabling_mode(PRED,MODE) changes the default tabling execution mode of
*predicate PRED to MODE (batched or local).
*
* Revision 1.86 2005/03/13 06:26:11 vsc
* fix excessive pruning in meta-calls
* fix Term->int breakage in compiler
* improve JPL (at least it does something now for amd64).
*
* Revision 1.85 2005/03/02 19:48:02 vsc
* Fix some possible errors in name/2 and friends, and cleanup code a bit
* YAP_Error changed.
*
* Revision 1.84 2005/03/02 18:35:46 vsc
2015-10-22 00:45:21 +01:00
* try to make initialization process more robust
* try to make name more robust (in case Lookup new atom fails)
*
* Revision 1.83 2005/03/01 22:25:09 vsc
* fix pruning bug
* make DL_MALLOC less enthusiastic about walking through buckets.
*
* Revision 1.82 2005/02/21 16:50:04 vsc
* amd64 fixes
* library fixes
*
* Revision 1.81 2005/02/08 04:05:35 vsc
* fix mess with add clause
* improves on sigsegv handling
*
* Revision 1.80 2005/01/05 05:32:37 vsc
* Ricardo's latest version of profiler.
*
* Revision 1.79 2004/12/28 22:20:36 vsc
2014-11-25 12:03:48 +00:00
* some extra bug fixes for trail overflows: some cannot be recovered that
*easily,
* some can.
*
* Revision 1.78 2004/12/08 04:45:03 vsc
* polish changes to undefp
* get rid of a few warnings
*
* Revision 1.77 2004/12/05 05:07:26 vsc
* name/2 should accept [] as a valid list (string)
*
* Revision 1.76 2004/12/05 05:01:25 vsc
* try to reduce overheads when running with goal expansion enabled.
* CLPBN fixes
* Handle overflows when allocating big clauses properly.
*
* Revision 1.75 2004/12/02 06:06:46 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 1.74 2004/11/19 22:08:43 vsc
2015-10-22 00:45:21 +01:00
* replace SYSTEM_ERROR_INTERNAL by out OUT_OF_WHATEVER_ERROR whenever
*appropriate.
*
* Revision 1.73 2004/11/19 17:14:14 vsc
* a few fixes for 64 bit compiling.
*
* Revision 1.72 2004/11/18 22:32:37 vsc
2015-10-22 00:45:21 +01:00
* fix situation where we might assume nonextsing double initialization of C
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*predicates (use
* Hidden Pred Flag).
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* $host_type was double initialized.
*
* Revision 1.71 2004/07/23 21:08:44 vsc
* windows fixes
*
* Revision 1.70 2004/06/29 19:04:42 vsc
* fix multithreaded version
* include new version of Ricardo's profiler
* new predicat atomic_concat
* allow multithreaded-debugging
* small fixes
*
* Revision 1.69 2004/06/16 14:12:53 vsc
* miscellaneous fixes
*
* Revision 1.68 2004/05/14 17:11:30 vsc
* support BigNums in interface
*
* Revision 1.67 2004/05/14 16:33:45 vsc
* add Yap_ReadBuffer
*
* Revision 1.66 2004/05/13 20:54:58 vsc
* debugger fixes
* make sure we always go back to current module, even during initizlization.
*
* Revision 1.65 2004/04/27 15:14:36 vsc
* fix halt/0 and halt/1
* *
* *
*************************************************************************/
#ifdef SCCS
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static char SccsId[] = "%W% %G%";
#endif
#define HAS_CACHE_REGS 1
/*
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* This file includes the definition of a miscellania of standard predicates
* for yap refering to: Consulting, Executing a C predicate from call,
* Comparisons (both general and numeric), Structure manipulation, Direct
* access to atoms and predicates, Basic support for the debugger
*
* It also includes a table where all C-predicates are initializated
*
*/
#include "Yap.h"
#if YAP_JIT
#include "amijit.h"
#endif
#include "Yatom.h"
#include "YapHeap.h"
#include "eval.h"
#include "yapio.h"
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#include "Foreign.h"
#ifdef TABLING
#include "tab.macros.h"
#endif /* TABLING */
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#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#if HAVE_STRING_H
#include <string.h>
#endif
#if HAVE_MALLOC_H
#include <malloc.h>
#endif
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#if YAP_JIT
#include <JIT_Compiler.hpp>
#endif
#include <wchar.h>
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#include <fcntl.h>
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static Int p_setval(USES_REGS1);
static Int p_value(USES_REGS1);
static Int p_values(USES_REGS1);
#ifdef undefined
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static CODEADDR *FindAtom(CODEADDR, int *);
#endif /* undefined */
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static Int p_opdec(USES_REGS1);
static Int p_univ(USES_REGS1);
static Int p_abort(USES_REGS1);
#ifdef BEAM
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Int p_halt(USES_REGS1);
#else
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static Int p_halt(USES_REGS1);
#endif
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static Int current_predicate(USES_REGS1);
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static Int cont_current_predicate(USES_REGS1);
static OpEntry *NextOp(OpEntry *CACHE_TYPE);
static Int init_current_op(USES_REGS1);
static Int cont_current_op(USES_REGS1);
static Int init_current_atom_op(USES_REGS1);
static Int cont_current_atom_op(USES_REGS1);
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static Int TrailMax(void);
static Int GlobalMax(void);
static Int LocalMax(void);
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static Int p_statistics_heap_max(USES_REGS1);
static Int p_statistics_global_max(USES_REGS1);
static Int p_statistics_local_max(USES_REGS1);
static Int p_statistics_heap_info(USES_REGS1);
static Int p_statistics_stacks_info(USES_REGS1);
static Int p_statistics_trail_info(USES_REGS1);
static Int p_cputime(USES_REGS1);
static Int p_systime(USES_REGS1);
static Int p_runtime(USES_REGS1);
static Int p_walltime(USES_REGS1);
static Int p_break(USES_REGS1);
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#if YAP_JIT
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void *(*Yap_JitCall)(JIT_Compiler *jc, yamop *p);
void (*Yap_llvmShutdown)(void);
Int (*Yap_traced_absmi)(void);
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static Int p_jit(USES_REGS1) { /* '$set_value'(+Atom,+Atomic) */
void *jit_handle;
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if ((jit_handle = Yap_LoadForeignFile(YAP_YAPJITLIB, 0))) {
if (!Yap_CallForeignFile(jit_handle, "init_jit"))
fprintf(stderr, "Could not load JIT\n");
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return FALSE;
}
return TRUE;
}
#endif /* YAP_JIT */
#ifdef BEAM
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Int use_eam(USES_REGS1);
Int eager_split(USES_REGS1);
Int force_wait(USES_REGS1);
Int commit(USES_REGS1);
Int skip_while_var(USES_REGS1);
Int wait_while_var(USES_REGS1);
Int show_time(USES_REGS1);
Int start_eam(USES_REGS1);
Int cont_eam(USES_REGS1);
extern int EAM;
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extern int eam_am(PredEntry *);
extern int showTime(void);
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Int start_eam(USES_REGS1) {
if (eam_am((PredEntry *)0x1))
return (TRUE);
else {
cut_fail();
return (FALSE);
}
}
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Int cont_eam(USES_REGS1) {
if (eam_am((PredEntry *)0x2))
return (TRUE);
else {
cut_fail();
return (FALSE);
}
}
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Int use_eam(USES_REGS1) {
if (EAM)
EAM = 0;
else {
Yap_PutValue(AtomCArith, 0);
EAM = 1;
}
return (TRUE);
}
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Int commit(USES_REGS1) {
if (EAM) {
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printf("Nao deveria ter sido chamado commit do stdpreds\n");
exit(1);
}
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return (TRUE);
}
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Int skip_while_var(USES_REGS1) {
if (EAM) {
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printf("Nao deveria ter sido chamado skip_while_var do stdpreds\n");
exit(1);
}
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return (TRUE);
}
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Int wait_while_var(USES_REGS1) {
if (EAM) {
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printf("Nao deveria ter sido chamado wait_while_var do stdpreds\n");
exit(1);
}
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return (TRUE);
}
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Int force_wait(USES_REGS1) {
if (EAM) {
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printf("Nao deveria ter sido chamado force_wait do stdpreds\n");
exit(1);
}
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return (TRUE);
}
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Int eager_split(USES_REGS1) {
if (EAM) {
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printf("Nao deveria ter sido chamado eager_split do stdpreds\n");
exit(1);
}
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return (TRUE);
}
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Int show_time(USES_REGS1) /* MORE PRECISION */
{
return (showTime());
}
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#endif /* BEAM */
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// @{
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/**
@defgroup YAPSetVal
@ingroup Internal_Database
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Maintain a light-weight map where the key is an atom, and the value can be
any constant.
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*/
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/** @pred set_value(+ _A_,+ _C_)
Associate atom _A_ with constant _C_.
The `set_value` and `get_value` built-ins give a fast alternative to
the internal data-base. This is a simple form of implementing a global
counter.
~~~~~
read_and_increment_counter(Value) :-
get_value(counter, Value),
Value1 is Value+1,
set_value(counter, Value1).
~~~~~
This predicate is YAP specific.
*/
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static Int p_setval(USES_REGS1) { /* '$set_value'(+Atom,+Atomic) */
Term t1 = Deref(ARG1), t2 = Deref(ARG2);
if (!IsVarTerm(t1) && IsAtomTerm(t1) &&
(!IsVarTerm(t2) && (IsAtomTerm(t2) || IsNumTerm(t2)))) {
Yap_PutValue(AtomOfTerm(t1), t2);
return (TRUE);
}
return (FALSE);
}
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/** @pred get_value(+ _A_,- _V_)
In YAP, atoms can be associated with constants. If one such
association exists for atom _A_, unify the second argument with the
constant. Otherwise, unify _V_ with `[]`.
This predicate is YAP specific.
*/
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static Int p_value(USES_REGS1) { /* '$get_value'(+Atom,?Val) */
Term t1 = Deref(ARG1);
if (IsVarTerm(t1)) {
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Yap_Error(INSTANTIATION_ERROR, t1, "get_value/2");
return (FALSE);
}
if (!IsAtomTerm(t1)) {
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Yap_Error(TYPE_ERROR_ATOM, t1, "get_value/2");
return (FALSE);
}
return (Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1))));
}
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static Int p_values(USES_REGS1) { /* '$values'(Atom,Old,New) */
Term t1 = Deref(ARG1), t3 = Deref(ARG3);
if (IsVarTerm(t1)) {
Yap_Error(INSTANTIATION_ERROR, t1, "set_value/2");
return (FALSE);
}
if (!IsAtomTerm(t1)) {
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Yap_Error(TYPE_ERROR_ATOM, t1, "set_value/2");
return (FALSE);
}
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if (!Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1)))) {
return (FALSE);
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}
if (!IsVarTerm(t3)) {
if (IsAtomTerm(t3) || IsNumTerm(t3)) {
Yap_PutValue(AtomOfTerm(t1), t3);
} else
return (FALSE);
}
return (TRUE);
}
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//@}
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static Int p_opdec(USES_REGS1) { /* '$opdec'(p,type,atom) */
/* we know the arguments are integer, atom, atom */
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Term p = Deref(ARG1), t = Deref(ARG2), at = Deref(ARG3);
Term tmod = Deref(ARG4);
if (tmod == TermProlog) {
tmod = PROLOG_MODULE;
}
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return Yap_OpDec((int)IntOfTerm(p), (char *)RepAtom(AtomOfTerm(t))->StrOfAE,
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AtomOfTerm(at), tmod);
}
#ifdef NO_STRTOD
#if HAVE_CTYPE_H
#include <ctype.h>
#endif
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double strtod(s, pe) char *s, **pe;
{
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double r = atof(s);
*pe = s;
while (*s == ' ') {
++s;
}
if (*s == '+' || *s == '-') {
++s;
}
if (!isdigit(*s)) {
return (r);
}
while (isdigit(*s)) {
++s;
}
if (*s == '.') {
++s;
}
while (isdigit(*s)) {
++s;
}
if (*s == 'e' || *s == 'E') {
++s;
}
if (*s == '+' || *s == '-') {
++s;
}
while (isdigit(*s)) {
++s;
}
*pe = s;
return (r);
}
#else
#include <stdlib.h>
#endif
#ifndef INFINITY
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#define INFINITY (1.0 / 0.0)
#endif
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static UInt runtime(USES_REGS1) {
return (Yap_cputime() - Yap_total_gc_time() - Yap_total_stack_shift_time());
}
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/* $runtime(-SinceInterval,-SinceStart) */
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static Int p_runtime(USES_REGS1) {
Int now, interval, gc_time, ss_time;
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Term tnow, tinterval;
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Yap_cputime_interval(&now, &interval);
gc_time = Yap_total_gc_time();
now -= gc_time;
ss_time = Yap_total_stack_shift_time();
now -= ss_time;
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interval -= (gc_time - LOCAL_LastGcTime) + (ss_time - LOCAL_LastSSTime);
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LOCAL_LastGcTime = gc_time;
LOCAL_LastSSTime = ss_time;
tnow = MkIntegerTerm(now);
tinterval = MkIntegerTerm(interval);
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return (Yap_unify_constant(ARG1, tnow) &&
Yap_unify_constant(ARG2, tinterval));
}
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/* $cputime(-SinceInterval,-SinceStart) */
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static Int p_cputime(USES_REGS1) {
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Int now, interval;
Yap_cputime_interval(&now, &interval);
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now)) &&
Yap_unify_constant(ARG2, MkIntegerTerm(interval)));
}
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static Int p_systime(USES_REGS1) {
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Int now, interval;
Yap_systime_interval(&now, &interval);
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now)) &&
Yap_unify_constant(ARG2, MkIntegerTerm(interval)));
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}
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static Int p_walltime(USES_REGS1) {
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Int now, interval;
Yap_walltime_interval(&now, &interval);
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now)) &&
Yap_unify_constant(ARG2, MkIntegerTerm(interval)));
}
2014-11-25 12:03:48 +00:00
static Int p_univ(USES_REGS1) { /* A =.. L */
unsigned int arity;
register Term tin;
Term twork, t2;
Atom at;
tin = Deref(ARG1);
t2 = Deref(ARG2);
if (IsVarTerm(tin)) {
/* we need to have a list */
2014-11-25 12:03:48 +00:00
Term *Ar;
if (IsVarTerm(t2)) {
Yap_Error(INSTANTIATION_ERROR, t2, "(=..)/2");
2014-11-25 12:03:48 +00:00
return (FALSE);
}
if (!IsPairTerm(t2)) {
if (t2 == TermNil)
2014-11-25 12:03:48 +00:00
Yap_Error(DOMAIN_ERROR_NON_EMPTY_LIST, t2, "(=..)/2");
else
2014-11-25 12:03:48 +00:00
Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2");
return (FALSE);
}
twork = HeadOfTerm(t2);
if (IsVarTerm(twork)) {
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
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return (FALSE);
}
if (IsNumTerm(twork)) {
Term tt = TailOfTerm(t2);
if (IsVarTerm(tt)) {
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Yap_Error(INSTANTIATION_ERROR, tt, "(=..)/2");
return (FALSE);
}
2014-11-25 12:03:48 +00:00
if (tt != MkAtomTerm(AtomNil)) {
Yap_Error(TYPE_ERROR_ATOMIC, twork, "(=..)/2");
return (FALSE);
}
return (Yap_unify_constant(ARG1, twork));
}
if (!IsAtomTerm(twork)) {
Term tt = TailOfTerm(t2);
if (IsVarTerm(tt)) {
2014-11-25 12:03:48 +00:00
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
return (FALSE);
} else if (tt == MkAtomTerm(AtomNil)) {
2014-11-25 12:03:48 +00:00
Yap_Error(TYPE_ERROR_ATOMIC, twork, "(=..)/2");
return (FALSE);
} else {
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Yap_Error(TYPE_ERROR_ATOM, twork, "(=..)/2");
return (FALSE);
}
2014-11-25 12:03:48 +00:00
}
at = AtomOfTerm(twork);
twork = TailOfTerm(t2);
if (IsVarTerm(twork)) {
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
2014-11-25 12:03:48 +00:00
return (FALSE);
} else if (!IsPairTerm(twork)) {
if (twork != TermNil) {
2014-11-25 12:03:48 +00:00
Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2");
return (FALSE);
}
return (Yap_unify_constant(ARG1, MkAtomTerm(at)));
}
build_compound:
/* build the term directly on the heap */
2014-01-19 21:15:05 +00:00
Ar = HR;
HR++;
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while (!IsVarTerm(twork) && IsPairTerm(twork)) {
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*HR++ = HeadOfTerm(twork);
if (HR > ASP - 1024) {
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/* restore space */
HR = Ar;
if (!Yap_gcl((ASP - HR) * sizeof(CELL), 2, ENV, gc_P(P, CP))) {
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Yap_Error(RESOURCE_ERROR_STACK, TermNil, LOCAL_ErrorMessage);
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return FALSE;
}
twork = TailOfTerm(Deref(ARG2));
goto build_compound;
}
twork = TailOfTerm(twork);
}
if (IsVarTerm(twork)) {
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
2014-11-25 12:03:48 +00:00
return (FALSE);
}
if (twork != TermNil) {
Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2");
return (FALSE);
}
#ifdef SFUNC
DOES_NOT_WORK();
{
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SFEntry *pe = (SFEntry *)Yap_GetAProp(at, SFProperty);
if (pe)
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twork = MkSFTerm(Yap_MkFunctor(at, SFArity), arity, CellPtr(TR),
pe->NilValue);
else
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twork = Yap_MkApplTerm(Yap_MkFunctor(at, arity), arity, CellPtr(TR));
}
#else
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arity = HR - Ar - 1;
if (at == AtomDot && arity == 2) {
Ar[0] = Ar[1];
Ar[1] = Ar[2];
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HR--;
twork = AbsPair(Ar);
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} else {
*Ar = (CELL)(Yap_MkFunctor(at, arity));
twork = AbsAppl(Ar);
}
#endif
return (Yap_unify(ARG1, twork));
}
if (IsAtomicTerm(tin)) {
twork = MkPairTerm(tin, MkAtomTerm(AtomNil));
return (Yap_unify(twork, ARG2));
}
if (IsRefTerm(tin))
return (FALSE);
if (IsApplTerm(tin)) {
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Functor fun = FunctorOfTerm(tin);
if (IsExtensionFunctor(fun)) {
2014-02-02 21:45:47 +00:00
twork = MkPairTerm(tin, MkAtomTerm(AtomNil));
return (Yap_unify(twork, ARG2));
}
arity = ArityOfFunctor(fun);
at = NameOfFunctor(fun);
#ifdef SFUNC
if (arity == SFArity) {
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CELL *p = CellPtr(TR);
CELL *q = ArgsOfSFTerm(tin);
int argno = 1;
while (*q) {
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while (*q > argno++)
*p++ = MkVarTerm();
++q;
*p++ = Deref(*q++);
}
twork = Yap_ArrayToList(CellPtr(TR), argno - 1);
while (IsIntTerm(twork)) {
2014-11-25 12:03:48 +00:00
if (!Yap_gc(2, ENV, gc_P(P, CP))) {
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Yap_Error(RESOURCE_ERROR_STACK, TermNil, LOCAL_ErrorMessage);
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return (FALSE);
}
twork = Yap_ArrayToList(CellPtr(TR), argno - 1);
}
} else
#endif
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{
while (HR + arity * 2 > ASP - 1024) {
if (!Yap_gcl((arity * 2) * sizeof(CELL), 2, ENV, gc_P(P, CP))) {
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Yap_Error(RESOURCE_ERROR_STACK, TermNil, LOCAL_ErrorMessage);
2014-11-25 12:03:48 +00:00
return (FALSE);
}
tin = Deref(ARG1);
}
2014-11-25 12:03:48 +00:00
twork = Yap_ArrayToList(RepAppl(tin) + 1, arity);
}
} else {
/* We found a list */
at = AtomDot;
twork = Yap_ArrayToList(RepPair(tin), 2);
}
twork = MkPairTerm(MkAtomTerm(at), twork);
return (Yap_unify(ARG2, twork));
}
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static Int p_abort(USES_REGS1) { /* abort */
/* make sure we won't go creeping around */
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Yap_Error(ABORT_EVENT, TermNil, "");
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return (FALSE);
}
#ifdef BEAM
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extern void exit_eam(char *s);
2014-11-25 12:03:48 +00:00
Int
#else
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static Int
#endif
2014-11-25 12:03:48 +00:00
p_halt(USES_REGS1) { /* halt */
Term t = Deref(ARG1);
Int out;
#ifdef BEAM
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if (EAM)
exit_eam("\n\n[ Prolog execution halted ]\n");
#endif
if (IsVarTerm(t)) {
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Yap_Error(INSTANTIATION_ERROR, t, "halt/1");
return (FALSE);
}
if (!IsIntegerTerm(t)) {
2014-11-25 12:03:48 +00:00
Yap_Error(TYPE_ERROR_INTEGER, t, "halt/1");
return (FALSE);
}
out = IntegerOfTerm(t);
2015-01-26 04:02:46 +00:00
#if YAP_JIT
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if (ExpEnv.analysis_struc.stats_enabled ||
ExpEnv.analysis_struc.time_pass_enabled) {
if (strcmp(((char *)ExpEnv.analysis_struc.outfile), "STDERR")) {
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int stderrcopy = dup(2);
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if (strcmp(((char *)ExpEnv.analysis_struc.outfile), "STDOUT") == 0) {
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dup2(1, 2);
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"
shutdown_llvm();
#pragma GCC diagnostic pop
dup2(stderrcopy, 2);
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} else {
int Outputfile = open(((char *)ExpEnv.analysis_struc.outfile),
O_CREAT | O_APPEND | O_WRONLY, 0777);
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if (Outputfile < 0) {
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fprintf(stderr,
"Error:: I can not write analysis passes's output on %s...\n",
((char *)ExpEnv.analysis_struc.outfile));
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fprintf(stderr, " %s...\n", strerror(errno));
errno = 0;
exit(1);
}
dup2(Outputfile, 2);
shutdown_llvm();
close(Outputfile);
dup2(stderrcopy, 2);
}
close(stderrcopy);
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} else
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shutdown_llvm();
}
#endif
2015-02-03 02:36:51 +00:00
Yap_exit(out);
return TRUE;
}
2015-10-22 00:45:21 +01:00
static bool valid_prop(Prop p, Term task) {
if (RepPredProp(p)->OpcodeOfPred == UNDEF_OPCODE)
2015-04-21 23:06:24 +01:00
return false;
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if ((RepPredProp(p)->PredFlags & (HiddenPredFlag | StandardPredFlag))) {
2015-11-05 16:12:07 +00:00
return (task == SYSTEM_MODULE || task == TermTrue || IsVarTerm(task));
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} else {
2015-11-05 16:12:07 +00:00
return (task == USER_MODULE || task == TermTrue || IsVarTerm(task));
2015-07-23 01:27:29 +01:00
}
2015-04-21 23:06:24 +01:00
}
2015-10-22 00:45:21 +01:00
static PropEntry *followLinkedListOfProps(PropEntry *p, Term task) {
2015-04-13 13:28:17 +01:00
while (p) {
2015-10-22 00:45:21 +01:00
if (p->KindOfPE == PEProp && valid_prop(p, task)) {
2015-04-13 13:28:17 +01:00
// found our baby..
return p;
2015-07-23 01:27:29 +01:00
}
2015-04-21 23:06:24 +01:00
p = p->NextOfPE;
}
return NIL;
}
2015-10-22 00:45:21 +01:00
static PropEntry *getPredProp(PropEntry *p, Term task) {
2015-04-21 23:06:24 +01:00
PredEntry *pe;
if (p == NIL)
return NIL;
pe = RepPredProp(p);
while (p != NIL) {
2015-07-23 01:27:29 +01:00
if (p->KindOfPE == PEProp && valid_prop(p, task)) {
2015-04-21 23:06:24 +01:00
return p;
2015-04-13 13:28:17 +01:00
} else if (p->KindOfPE == FunctorProperty) {
2015-04-21 23:06:24 +01:00
// first search remainder of functor list
Prop pf;
2015-07-23 01:27:29 +01:00
if ((pf = followLinkedListOfProps(RepFunctorProp(p)->PropsOfFE, task))) {
2015-10-22 00:45:21 +01:00
return pf;
2015-04-13 13:28:17 +01:00
}
}
p = p->NextOfPE;
}
return NIL;
}
2015-10-22 00:45:21 +01:00
static PropEntry *nextPredForAtom(PropEntry *p, Term task) {
2015-04-13 13:28:17 +01:00
PredEntry *pe;
if (p == NIL)
return NIL;
pe = RepPredProp(p);
if (pe->ArityOfPE == 0) {
// if atom prop, search atom list
2015-07-23 01:27:29 +01:00
return followLinkedListOfProps(p->NextOfPE, task);
2015-04-13 13:28:17 +01:00
} else {
FunctorEntry *f = pe->FunctorOfPred;
// first search remainder of functor list
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PropEntry *pf;
2015-11-05 16:12:07 +00:00
if ((pf = followLinkedListOfProps(p->NextOfPE, task))) {
2015-04-21 23:06:24 +01:00
return pf;
2015-04-13 13:28:17 +01:00
}
2015-07-23 01:27:29 +01:00
2015-04-13 13:28:17 +01:00
// if that fails, follow the functor
2015-10-22 00:45:21 +01:00
return getPredProp(f->NextOfPE, task);
2015-04-21 23:06:24 +01:00
}
}
2015-10-22 00:45:21 +01:00
static Prop initFunctorSearch(Term t3, Term t2, Term task) {
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if (IsAtomTerm(t3)) {
Atom at = AtomOfTerm(t3);
// access the entry at key address.
2015-10-22 00:45:21 +01:00
return followLinkedListOfProps(RepAtom(at)->PropsOfAE, task);
2015-04-21 23:06:24 +01:00
} else if (IsIntTerm(t3)) {
if (IsNonVarTerm(t2) && t2 != IDB_MODULE) {
Yap_Error(TYPE_ERROR_CALLABLE, t3, "current_predicate/2");
return NULL;
} else {
2015-07-23 01:27:29 +01:00
Prop p;
2015-04-21 23:06:24 +01:00
// access the entry at key address.
// a single property (this will be deterministic
2015-10-22 00:45:21 +01:00
p = AbsPredProp(Yap_FindLUIntKey(IntOfTerm(t3)));
if (valid_prop(p, task))
return p;
2015-04-21 23:06:24 +01:00
}
Yap_Error(TYPE_ERROR_CALLABLE, t3, "current_predicate/2");
return NULL;
} else {
Functor f;
if (IsPairTerm(t3)) {
f = FunctorDot;
} else {
f = FunctorOfTerm(t3);
if (IsExtensionFunctor(f)) {
2015-10-22 00:45:21 +01:00
Yap_Error(TYPE_ERROR_CALLABLE, t3, "current_predicate/2");
return NULL;
2015-04-21 23:06:24 +01:00
}
}
2015-10-22 00:45:21 +01:00
return followLinkedListOfProps(f->PropsOfFE, task);
2015-04-13 13:28:17 +01:00
}
}
2015-10-22 00:45:21 +01:00
static PredEntry *firstModulePred(PredEntry *npp, Term task) {
2015-04-21 23:06:24 +01:00
if (!npp)
return NULL;
do {
2015-07-23 01:27:29 +01:00
npp = npp->NextPredOfModule;
2015-10-22 00:45:21 +01:00
} while (npp && !valid_prop(AbsPredProp(npp), task));
2015-04-21 23:06:24 +01:00
return npp;
}
2015-10-22 00:45:21 +01:00
static PredEntry *firstModulesPred(PredEntry *npp, Term task) {
2015-04-21 23:06:24 +01:00
ModEntry *m;
if (npp) {
2015-10-22 00:45:21 +01:00
m = Yap_GetModuleEntry(npp->ModuleOfPred);
2015-04-21 23:06:24 +01:00
npp = npp->NextPredOfModule;
} else {
m = CurrentModules;
npp = m->PredForME;
}
do {
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while (npp && !valid_prop(AbsPredProp(npp), task))
2015-04-21 23:06:24 +01:00
npp = npp->NextPredOfModule;
if (npp)
return npp;
m = m->NextME;
if (m) {
2015-07-23 01:27:29 +01:00
npp = m->PredForME;
2015-04-21 23:06:24 +01:00
}
} while (npp || m);
return npp;
}
2014-11-25 12:03:48 +00:00
static Int cont_current_predicate(USES_REGS1) {
UInt Arity;
2015-07-23 01:27:29 +01:00
Term name, task;
2015-04-21 23:06:24 +01:00
Term t1 = ARG1, t2 = ARG2, t3 = ARG3;
2015-10-22 00:45:21 +01:00
bool rc, will_cut = false;
2014-11-25 12:03:48 +00:00
Functor f;
2015-04-21 23:06:24 +01:00
PredEntry *pp;
t1 = Yap_YapStripModule(t1, &t2);
t3 = Yap_YapStripModule(t3, &t2);
2015-07-23 01:27:29 +01:00
task = Deref(ARG4);
2015-04-21 23:06:24 +01:00
pp = AddressOfTerm(EXTRA_CBACK_ARG(4, 1));
2015-10-22 00:45:21 +01:00
if (IsNonVarTerm(t3)) {
2015-04-21 23:06:24 +01:00
PropEntry *np, *p;
2015-11-05 16:12:07 +00:00
if (IsNonVarTerm(t2)) {
// module and functor known, should be easy
if (IsAtomTerm(t2)) {
if ((p = Yap_GetPredPropByAtom(AtomOfTerm(t3), t2)) &&
valid_prop(p, task)
) {
cut_succeed();
} else {
cut_fail();
}
} else {
if ((p = Yap_GetPredPropByFunc(FunctorOfTerm(t3), t2)) &&
valid_prop(p, task)
) {
cut_succeed();
} else {
cut_fail();
}
}
}
2015-04-21 23:06:24 +01:00
// t3 is a functor, or compound term,
// just follow the functor chain
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p = AbsPredProp(pp);
2015-04-21 23:06:24 +01:00
if (!p) {
// initial search, tracks down what is the first call with
// that name, functor..
2015-10-22 00:45:21 +01:00
p = initFunctorSearch(t3, t2, task);
// now, we can do lookahead.
2015-07-23 01:27:29 +01:00
if (p == NIL)
cut_fail();
2015-10-22 00:45:21 +01:00
pp = RepPredProp(p);
2015-11-05 16:12:07 +00:00
}
np = followLinkedListOfProps(p->NextOfPE, task);
Term mod = pp->ModuleOfPred;
if (mod == PROLOG_MODULE)
mod = TermProlog;
bool b = Yap_unify(t2, mod);
if (!np) {
if (b) cut_succeed();
else cut_fail();
} else {
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(RepPredProp(np));
B->cp_h = HR;
return b;
2015-10-22 00:45:21 +01:00
}
2015-04-21 23:06:24 +01:00
} else if (IsNonVarTerm(t1)) {
PropEntry *np, *p;
// run over the same atomany predicate defined for that atom
// may be fair bait, depends on whether we know the module.
2015-10-22 00:45:21 +01:00
p = AbsPredProp(pp);
2015-04-21 23:06:24 +01:00
if (!p) {
// initialization time
2015-10-22 00:45:21 +01:00
if (IsIntTerm(t1)) {
// or this or nothing....
p = AbsPredProp(Yap_FindLUIntKey(IntOfTerm(t3)));
} else if (IsAtomTerm(t1)) {
// should be the usual situation.
Atom at = AtomOfTerm(t1);
p = getPredProp(RepAtom(at)->PropsOfAE, task);
2015-04-21 23:06:24 +01:00
} else {
Yap_Error(TYPE_ERROR_CALLABLE, t1, "current_predicate/2");
}
if (!p)
cut_fail();
pp = RepPredProp(p);
}
// now, we can do lookahead.
2015-07-23 01:27:29 +01:00
np = nextPredForAtom(p, task);
2015-04-21 23:06:24 +01:00
if (!np)
will_cut = true;
else {
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(RepPredProp(np));
2015-03-09 17:27:35 +00:00
B->cp_h = HR;
2014-11-25 12:03:48 +00:00
}
} else if (IsNonVarTerm(t2)) {
// operating within the same module.
PredEntry *npp;
2015-07-23 01:27:29 +01:00
2015-04-21 23:06:24 +01:00
if (!pp) {
2015-10-22 00:45:21 +01:00
if (!IsAtomTerm(t2)) {
Yap_Error(TYPE_ERROR_ATOM, t2, "current_predicate/2");
2015-07-23 01:27:29 +01:00
}
2015-04-21 23:06:24 +01:00
ModEntry *m = Yap_GetModuleEntry(t2);
2015-10-22 00:45:21 +01:00
pp = firstModulePred(m->PredForME, task);
2015-04-21 23:06:24 +01:00
if (!pp)
cut_fail();
}
2015-10-22 00:45:21 +01:00
npp = firstModulePred(pp, task);
2015-04-21 23:06:24 +01:00
if (!npp)
will_cut = true;
2015-10-22 00:45:21 +01:00
// just try next one
2015-04-21 23:06:24 +01:00
else {
2014-11-25 12:03:48 +00:00
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(npp);
2015-03-09 17:27:35 +00:00
B->cp_h = HR;
2014-11-25 12:03:48 +00:00
}
} else {
2015-04-21 23:06:24 +01:00
// operating across all modules.
PredEntry *npp;
2015-07-23 01:27:29 +01:00
2015-04-21 23:06:24 +01:00
if (!pp) {
2015-10-22 00:45:21 +01:00
pp = firstModulesPred(CurrentModules->PredForME, task);
2015-04-21 23:06:24 +01:00
if (!pp)
2014-11-25 12:03:48 +00:00
cut_fail();
2015-04-21 23:06:24 +01:00
}
2015-10-22 00:45:21 +01:00
npp = firstModulesPred(pp, task);
2015-04-21 23:06:24 +01:00
if (!npp)
will_cut = true;
// just try next one
2015-04-13 13:28:17 +01:00
else {
2015-04-21 23:06:24 +01:00
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(npp);
2015-04-13 13:28:17 +01:00
B->cp_h = HR;
}
}
2015-04-13 13:28:17 +01:00
if (pp->ModuleOfPred != IDB_MODULE) {
2014-11-25 12:03:48 +00:00
f = pp->FunctorOfPred;
Arity = pp->ArityOfPE;
if (Arity)
2014-11-25 12:03:48 +00:00
name = MkAtomTerm(NameOfFunctor(f));
else
2014-11-25 12:03:48 +00:00
name = MkAtomTerm((Atom)f);
} else {
if (pp->PredFlags & NumberDBPredFlag) {
name = MkIntegerTerm(pp->src.IndxId);
Arity = 0;
} else if (pp->PredFlags & AtomDBPredFlag) {
2014-11-25 12:03:48 +00:00
f = pp->FunctorOfPred;
name = MkAtomTerm((Atom)f);
Arity = 0;
} else {
2014-11-25 12:03:48 +00:00
f = pp->FunctorOfPred;
name = MkAtomTerm(NameOfFunctor(f));
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Arity = ArityOfFunctor(pp->FunctorOfPred);
}
}
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if (Arity) {
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rc = Yap_unify(t3, Yap_MkNewApplTerm(f, Arity));
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} else {
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rc = Yap_unify(t3, name);
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}
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rc = rc && Yap_unify(t2, ModToTerm(pp->ModuleOfPred)) && Yap_unify(t1, name);
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if (will_cut) {
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if (rc)
cut_succeed();
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cut_fail();
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}
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return rc;
}
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static Int current_predicate(USES_REGS1) {
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EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(NULL);
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// ensure deref access to choice-point fields.
return cont_current_predicate(PASS_REGS1);
}
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static OpEntry *NextOp(OpEntry *pp USES_REGS) {
while (!EndOfPAEntr(pp) && pp->KindOfPE != OpProperty &&
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(pp->OpModule != PROLOG_MODULE || pp->OpModule != CurrentModule))
pp = RepOpProp(pp->NextOfPE);
return (pp);
}
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int Yap_IsOp(Atom at) {
CACHE_REGS
OpEntry *op = NextOp(RepOpProp((Prop)(RepAtom(at)->PropsOfAE)) PASS_REGS);
return (!EndOfPAEntr(op));
}
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int Yap_IsOpMaxPrio(Atom at) {
CACHE_REGS
OpEntry *op = NextOp(RepOpProp((Prop)(RepAtom(at)->PropsOfAE)) PASS_REGS);
int max;
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if (EndOfPAEntr(op))
return 0;
max = (op->Prefix & 0xfff);
if ((op->Infix & 0xfff) > max)
max = op->Infix & 0xfff;
if ((op->Posfix & 0xfff) > max)
max = op->Posfix & 0xfff;
return max;
}
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static Int unify_op(OpEntry *op USES_REGS) {
Term tmod = op->OpModule;
if (tmod == PROLOG_MODULE)
tmod = TermProlog;
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return Yap_unify_constant(ARG2, tmod) &&
Yap_unify_constant(ARG3, MkIntegerTerm(op->Prefix)) &&
Yap_unify_constant(ARG4, MkIntegerTerm(op->Infix)) &&
Yap_unify_constant(ARG5, MkIntegerTerm(op->Posfix));
}
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static Int cont_current_op(USES_REGS1) {
OpEntry *op = (OpEntry *)IntegerOfTerm(EXTRA_CBACK_ARG(5, 1)), *next;
READ_LOCK(op->OpRWLock);
next = op->OpNext;
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if (Yap_unify_constant(ARG1, MkAtomTerm(op->OpName)) &&
unify_op(op PASS_REGS)) {
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READ_UNLOCK(op->OpRWLock);
if (next) {
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
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B->cp_h = HR;
return TRUE;
} else {
cut_succeed();
}
} else {
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READ_UNLOCK(op->OpRWLock);
if (next) {
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
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B->cp_h = HR;
return FALSE;
} else {
cut_fail();
}
}
}
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static Int init_current_op(
USES_REGS1) { /* current_op(-Precedence,-Type,-Atom) */
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)OpList);
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B->cp_h = HR;
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return cont_current_op(PASS_REGS1);
}
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static Int cont_current_atom_op(USES_REGS1) {
OpEntry *op = (OpEntry *)IntegerOfTerm(EXTRA_CBACK_ARG(5, 1)), *next;
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READ_LOCK(op->OpRWLock);
next = NextOp(RepOpProp(op->NextOfPE) PASS_REGS);
if (unify_op(op PASS_REGS)) {
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READ_UNLOCK(op->OpRWLock);
if (next) {
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
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B->cp_h = HR;
return TRUE;
} else {
cut_succeed();
}
} else {
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READ_UNLOCK(op->OpRWLock);
if (next) {
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
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B->cp_h = HR;
return FALSE;
} else {
cut_fail();
}
}
}
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static Int init_current_atom_op(
USES_REGS1) { /* current_op(-Precedence,-Type,-Atom) */
Term t = Deref(ARG1);
AtomEntry *ae;
OpEntry *ope;
if (IsVarTerm(t) || !IsAtomTerm(t)) {
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Yap_Error(TYPE_ERROR_ATOM, t, "current_op/3");
cut_fail();
}
ae = RepAtom(AtomOfTerm(t));
if (EndOfPAEntr((ope = NextOp(RepOpProp(ae->PropsOfAE) PASS_REGS)))) {
cut_fail();
}
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EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((Int)ope);
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B->cp_h = HR;
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return cont_current_atom_op(PASS_REGS1);
}
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void Yap_show_statistics(void) {
CACHE_REGS
unsigned long int heap_space_taken;
double frag;
#if USE_SYSTEM_MALLOC && HAVE_MALLINFO
struct mallinfo mi = mallinfo();
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heap_space_taken = (mi.arena + mi.hblkhd) - Yap_HoleSize;
#else
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heap_space_taken =
(unsigned long int)(Unsigned(HeapTop) - Unsigned(Yap_HeapBase)) -
Yap_HoleSize;
#endif
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frag = (100.0 * (heap_space_taken - HeapUsed)) / heap_space_taken;
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fprintf(stderr, "Code Space: %ld (%ld bytes needed, %ld bytes used, "
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"fragmentation %.3f%%).\n",
(unsigned long int)(Unsigned(H0) - Unsigned(Yap_HeapBase)),
(unsigned long int)(Unsigned(HeapTop) - Unsigned(Yap_HeapBase)),
(unsigned long int)(HeapUsed), frag);
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fprintf(stderr, "Stack Space: %ld (%ld for Global, %ld for local).\n",
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(unsigned long int)(sizeof(CELL) * (LCL0 - H0)),
(unsigned long int)(sizeof(CELL) * (HR - H0)),
(unsigned long int)(sizeof(CELL) * (LCL0 - ASP)));
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fprintf(stderr, "Trail Space: %ld (%ld used).\n",
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(unsigned long int)(sizeof(tr_fr_ptr) * (Unsigned(LOCAL_TrailTop) -
Unsigned(LOCAL_TrailBase))),
(unsigned long int)(sizeof(tr_fr_ptr) *
(Unsigned(TR) - Unsigned(LOCAL_TrailBase))));
fprintf(stderr, "Runtime: %lds.\n", (unsigned long int)(runtime(PASS_REGS1)));
fprintf(stderr, "Cputime: %lds.\n", (unsigned long int)(Yap_cputime()));
fprintf(stderr, "Walltime: %lds.\n", (unsigned long int)(Yap_walltime()));
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}
static Int p_statistics_heap_max(USES_REGS1) {
Term tmax = MkIntegerTerm(HeapMax);
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return (Yap_unify(tmax, ARG1));
}
/* The results of the next routines are not to be trusted too */
/* much. Basically, any stack shifting will seriously confuse the */
/* results */
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static Int TrailTide = -1, LocalTide = -1, GlobalTide = -1;
/* maximum Trail usage */
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static Int TrailMax(void) {
CACHE_REGS
Int i;
Int TrWidth = Unsigned(LOCAL_TrailTop) - Unsigned(LOCAL_TrailBase);
CELL *pt;
if (TrailTide != TrWidth) {
pt = (CELL *)TR;
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while (pt + 2 < (CELL *)LOCAL_TrailTop) {
if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0)
break;
else
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pt++;
}
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if (pt + 2 < (CELL *)LOCAL_TrailTop)
i = Unsigned(pt) - Unsigned(LOCAL_TrailBase);
else
i = TrWidth;
} else
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return (TrWidth);
if (TrailTide > i)
i = TrailTide;
else
TrailTide = i;
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return (i);
}
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static Int p_statistics_trail_max(USES_REGS1) {
Term tmax = MkIntegerTerm(TrailMax());
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return (Yap_unify(tmax, ARG1));
}
/* maximum Global usage */
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static Int GlobalMax(void) {
CACHE_REGS
Int i;
Int StkWidth = Unsigned(LCL0) - Unsigned(H0);
CELL *pt;
if (GlobalTide != StkWidth) {
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pt = HR;
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while (pt + 2 < ASP) {
if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0)
break;
else
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pt++;
}
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if (pt + 2 < ASP)
i = Unsigned(pt) - Unsigned(H0);
else
/* so that both Local and Global have reached maximum width */
GlobalTide = LocalTide = i = StkWidth;
} else
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return (StkWidth);
if (GlobalTide > i)
i = GlobalTide;
else
GlobalTide = i;
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return (i);
}
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static Int p_statistics_global_max(USES_REGS1) {
Term tmax = MkIntegerTerm(GlobalMax());
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return (Yap_unify(tmax, ARG1));
}
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static Int LocalMax(void) {
CACHE_REGS
Int i;
Int StkWidth = Unsigned(LCL0) - Unsigned(H0);
CELL *pt;
if (LocalTide != StkWidth) {
pt = LCL0;
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while (pt - 3 > HR) {
if (pt[-1] == 0 && pt[-2] == 0 && pt[-3] == 0)
break;
else
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--pt;
}
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if (pt - 3 > HR)
i = Unsigned(LCL0) - Unsigned(pt);
else
/* so that both Local and Global have reached maximum width */
GlobalTide = LocalTide = i = StkWidth;
} else
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return (StkWidth);
if (LocalTide > i)
i = LocalTide;
else
LocalTide = i;
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return (i);
}
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static Int p_statistics_local_max(USES_REGS1) {
Term tmax = MkIntegerTerm(LocalMax());
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return (Yap_unify(tmax, ARG1));
}
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static Int p_statistics_heap_info(USES_REGS1) {
Term tusage = MkIntegerTerm(HeapUsed);
#if USE_SYSTEM_MALLOC && HAVE_MALLINFO
struct mallinfo mi = mallinfo();
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UInt sstack = Yap_HoleSize + (LOCAL_TrailTop - LOCAL_GlobalBase);
UInt mmax = (mi.arena + mi.hblkhd);
Term tmax = MkIntegerTerm(mmax - sstack);
tusage = MkIntegerTerm(mmax - (mi.fordblks + sstack));
#else
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Term tmax = MkIntegerTerm((LOCAL_GlobalBase - Yap_HeapBase) - Yap_HoleSize);
#endif
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return (Yap_unify(tmax, ARG1) && Yap_unify(tusage, ARG2));
}
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static Int p_statistics_stacks_info(USES_REGS1) {
Term tmax = MkIntegerTerm(Unsigned(LCL0) - Unsigned(H0));
2014-01-19 21:15:05 +00:00
Term tgusage = MkIntegerTerm(Unsigned(HR) - Unsigned(H0));
Term tlusage = MkIntegerTerm(Unsigned(LCL0) - Unsigned(ASP));
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return (Yap_unify(tmax, ARG1) && Yap_unify(tgusage, ARG2) &&
Yap_unify(tlusage, ARG3));
}
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static Int p_statistics_trail_info(USES_REGS1) {
Term tmax =
MkIntegerTerm(Unsigned(LOCAL_TrailTop) - Unsigned(LOCAL_TrailBase));
Term tusage = MkIntegerTerm(Unsigned(TR) - Unsigned(LOCAL_TrailBase));
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return (Yap_unify(tmax, ARG1) && Yap_unify(tusage, ARG2));
}
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static Int p_statistics_atom_info(USES_REGS1) {
UInt count = 0, spaceused = 0, i;
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for (i = 0; i < AtomHashTableSize; i++) {
Atom catom;
READ_LOCK(HashChain[i].AERWLock);
catom = HashChain[i].Entry;
if (catom != NIL) {
READ_LOCK(RepAtom(catom)->ARWLock);
}
READ_UNLOCK(HashChain[i].AERWLock);
while (catom != NIL) {
Atom ncatom;
count++;
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spaceused +=
sizeof(AtomEntry) + strlen((char *)RepAtom(catom)->StrOfAE) + 1;
ncatom = RepAtom(catom)->NextOfAE;
if (ncatom != NIL) {
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READ_LOCK(RepAtom(ncatom)->ARWLock);
}
2013-01-23 09:55:11 +00:00
READ_UNLOCK(RepAtom(catom)->ARWLock);
catom = ncatom;
}
}
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for (i = 0; i < WideAtomHashTableSize; i++) {
Atom catom;
READ_LOCK(WideHashChain[i].AERWLock);
catom = WideHashChain[i].Entry;
if (catom != NIL) {
READ_LOCK(RepAtom(catom)->ARWLock);
}
READ_UNLOCK(WideHashChain[i].AERWLock);
while (catom != NIL) {
Atom ncatom;
count++;
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spaceused +=
sizeof(AtomEntry) +
sizeof(wchar_t) * (wcslen((wchar_t *)(RepAtom(catom)->StrOfAE) + 1));
ncatom = RepAtom(catom)->NextOfAE;
if (ncatom != NIL) {
2014-11-25 12:03:48 +00:00
READ_LOCK(RepAtom(ncatom)->ARWLock);
}
2013-01-23 09:55:11 +00:00
READ_UNLOCK(RepAtom(catom)->ARWLock);
catom = ncatom;
}
}
return Yap_unify(ARG1, MkIntegerTerm(count)) &&
2014-11-25 12:03:48 +00:00
Yap_unify(ARG2, MkIntegerTerm(spaceused));
}
2014-11-25 12:03:48 +00:00
static Int p_statistics_db_size(USES_REGS1) {
Term t = MkIntegerTerm(Yap_ClauseSpace);
Term tit = MkIntegerTerm(Yap_IndexSpace_Tree);
Term tis = MkIntegerTerm(Yap_IndexSpace_SW);
Term tie = MkIntegerTerm(Yap_IndexSpace_EXT);
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return Yap_unify(t, ARG1) && Yap_unify(tit, ARG2) && Yap_unify(tis, ARG3) &&
Yap_unify(tie, ARG4);
}
2014-11-25 12:03:48 +00:00
static Int p_statistics_lu_db_size(USES_REGS1) {
Term t = MkIntegerTerm(Yap_LUClauseSpace);
Term tit = MkIntegerTerm(Yap_LUIndexSpace_Tree);
Term tic = MkIntegerTerm(Yap_LUIndexSpace_CP);
Term tix = MkIntegerTerm(Yap_LUIndexSpace_EXT);
Term tis = MkIntegerTerm(Yap_LUIndexSpace_SW);
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return Yap_unify(t, ARG1) && Yap_unify(tit, ARG2) && Yap_unify(tic, ARG3) &&
Yap_unify(tis, ARG4) && Yap_unify(tix, ARG5);
}
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static Int p_executable(USES_REGS1) {
2013-01-13 17:55:13 +00:00
if (GLOBAL_argv && GLOBAL_argv[0])
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Yap_TrueFileName(GLOBAL_argv[0], LOCAL_FileNameBuf, FALSE);
2013-01-13 17:55:13 +00:00
else
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strncpy(LOCAL_FileNameBuf, Yap_FindExecutable(), YAP_FILENAME_MAX - 1);
2013-01-13 17:55:13 +00:00
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return Yap_unify(MkAtomTerm(Yap_LookupAtom(LOCAL_FileNameBuf)), ARG1);
}
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static Int p_system_mode(USES_REGS1) {
Term t1 = Deref(ARG1);
if (IsVarTerm(t1)) {
if (LOCAL_PrologMode & SystemMode)
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return Yap_unify(t1, MkAtomTerm(AtomTrue));
else
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return Yap_unify(t1, MkAtomTerm(AtomFalse));
} else {
Atom at = AtomOfTerm(t1);
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if (at == AtomFalse)
LOCAL_PrologMode &= ~SystemMode;
else
LOCAL_PrologMode |= SystemMode;
}
return TRUE;
}
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static Int p_lock_system(USES_REGS1) {
LOCK(GLOBAL_BGL);
return TRUE;
}
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static Int p_unlock_system(USES_REGS1) {
UNLOCK(GLOBAL_BGL);
return TRUE;
}
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static Int p_enterundefp(USES_REGS1) {
2011-05-04 10:11:41 +01:00
if (LOCAL_DoingUndefp) {
return FALSE;
}
2011-05-04 10:11:41 +01:00
LOCAL_DoingUndefp = TRUE;
return TRUE;
}
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static Int p_exitundefp(USES_REGS1) {
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if (LOCAL_DoingUndefp) {
LOCAL_DoingUndefp = FALSE;
return TRUE;
}
return FALSE;
}
#ifdef DEBUG
extern void DumpActiveGoals(void);
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static Int p_dump_active_goals(USES_REGS1) {
DumpActiveGoals();
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return (TRUE);
}
#endif
#ifdef INES
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static Int p_euc_dist(USES_REGS1) {
Term t1 = Deref(ARG1);
Term t2 = Deref(ARG2);
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double d1 = (double)(IntegerOfTerm(ArgOfTerm(1, t1)) -
IntegerOfTerm(ArgOfTerm(1, t2)));
double d2 = (double)(IntegerOfTerm(ArgOfTerm(2, t1)) -
IntegerOfTerm(ArgOfTerm(2, t2)));
double d3 = (double)(IntegerOfTerm(ArgOfTerm(3, t1)) -
IntegerOfTerm(ArgOfTerm(3, t2)));
Int result = (Int)sqrt(d1 * d1 + d2 * d2 + d3 * d3);
return (Yap_unify(ARG3, MkIntegerTerm(result)));
}
volatile int loop_counter = 0;
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static Int p_loop(USES_REGS1) {
while (loop_counter == 0)
;
return (TRUE);
}
#endif
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static Int p_break(USES_REGS1) {
Atom at = AtomOfTerm(Deref(ARG1));
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if (at == AtomTrue) {
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LOCAL_BreakLevel++;
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return TRUE;
}
if (at == AtomFalse) {
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LOCAL_BreakLevel--;
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return TRUE;
}
return FALSE;
}
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void Yap_InitBackCPreds(void) {
2015-07-23 01:27:29 +01:00
Yap_InitCPredBack("$current_predicate", 4, 1, current_predicate,
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cont_current_predicate, SafePredFlag | SyncPredFlag);
Yap_InitCPredBack("$current_op", 5, 1, init_current_op, cont_current_op,
2014-11-25 12:03:48 +00:00
SafePredFlag | SyncPredFlag);
Yap_InitCPredBack("$current_atom_op", 5, 1, init_current_atom_op,
cont_current_atom_op, SafePredFlag | SyncPredFlag);
#ifdef BEAM
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Yap_InitCPredBack("eam", 1, 0, start_eam, cont_eam, SafePredFlag);
#endif
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Yap_InitBackAtoms();
Yap_InitBackIO();
Yap_InitBackDB();
Yap_InitUserBacks();
}
typedef void (*Proc)(void);
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Proc E_Modules[] = {/* init_fc,*/ (Proc)0};
2015-02-03 02:36:51 +00:00
#ifdef YAPOR
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static Int p_parallel_mode(USES_REGS1) { return FALSE; }
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static Int p_yapor_workers(USES_REGS1) { return FALSE; }
#endif /* YAPOR */
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void Yap_InitCPreds(void) {
/* numerical comparison */
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Yap_InitCPred("set_value", 2, p_setval, SafePredFlag | SyncPredFlag);
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Yap_InitCPred("get_value", 2, p_value,
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TestPredFlag | SafePredFlag | SyncPredFlag);
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Yap_InitCPred("$values", 3, p_values, SafePredFlag | SyncPredFlag);
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/* general purpose */
Yap_InitCPred("$opdec", 4, p_opdec, SafePredFlag | SyncPredFlag);
Yap_InitCPred("=..", 2, p_univ, 0);
/** @pred _T_ =.. _L_ is iso
The list _L_ is built with the functor and arguments of the term
_T_. If _T_ is instantiated to a variable, then _L_ must be
instantiated either to a list whose head is an atom, or to a list
consisting of just a number.
*/
Yap_InitCPred("$statistics_trail_max", 1, p_statistics_trail_max,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_heap_max", 1, p_statistics_heap_max,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_global_max", 1, p_statistics_global_max,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_local_max", 1, p_statistics_local_max,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_heap_info", 2, p_statistics_heap_info,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_stacks_info", 3, p_statistics_stacks_info,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_trail_info", 2, p_statistics_trail_info,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_atom_info", 2, p_statistics_atom_info,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_db_size", 4, p_statistics_db_size,
SafePredFlag | SyncPredFlag);
Yap_InitCPred("$statistics_lu_db_size", 5, p_statistics_lu_db_size,
SafePredFlag | SyncPredFlag);
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Yap_InitCPred("$executable", 1, p_executable, SafePredFlag);
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Yap_InitCPred("$runtime", 2, p_runtime, SafePredFlag | SyncPredFlag);
Yap_InitCPred("$cputime", 2, p_cputime, SafePredFlag | SyncPredFlag);
Yap_InitCPred("$systime", 2, p_systime, SafePredFlag | SyncPredFlag);
Yap_InitCPred("$walltime", 2, p_walltime, SafePredFlag | SyncPredFlag);
Yap_InitCPred("$system_mode", 1, p_system_mode, SafePredFlag | SyncPredFlag);
Yap_InitCPred("abort", 0, p_abort, SyncPredFlag);
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/** @pred abort
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Abandons the execution of the current goal and returns to top level. All
break levels (see break/0 below) are terminated. It is mainly
used during debugging or after a serious execution error, to return to
the top-level.
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*/
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Yap_InitCPred("$break", 1, p_break, SafePredFlag);
#ifdef BEAM
Yap_InitCPred("@", 0, eager_split, SafePredFlag);
Yap_InitCPred(":", 0, force_wait, SafePredFlag);
Yap_InitCPred("/", 0, commit, SafePredFlag);
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Yap_InitCPred("skip_while_var", 1, skip_while_var, SafePredFlag);
Yap_InitCPred("wait_while_var", 1, wait_while_var, SafePredFlag);
Yap_InitCPred("eamtime", 0, show_time, SafePredFlag);
Yap_InitCPred("eam", 0, use_eam, SafePredFlag);
#endif
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Yap_InitCPred("$halt", 1, p_halt, SyncPredFlag);
Yap_InitCPred("$lock_system", 0, p_lock_system, SafePredFlag);
Yap_InitCPred("$unlock_system", 0, p_unlock_system, SafePredFlag);
Yap_InitCPred("$enter_undefp", 0, p_enterundefp, SafePredFlag);
Yap_InitCPred("$exit_undefp", 0, p_exitundefp, SafePredFlag);
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#ifdef YAP_JIT
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Yap_InitCPred("$jit_init", 1, p_jit, SafePredFlag | SyncPredFlag);
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#endif /* YAPOR */
#ifdef INES
Yap_InitCPred("euc_dist", 3, p_euc_dist, SafePredFlag);
Yap_InitCPred("loop", 0, p_loop, SafePredFlag);
#endif
#if QSAR
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Yap_InitCPred("in_range", 8, p_in_range, TestPredFlag | SafePredFlag);
Yap_InitCPred("in_range", 4, p_in_range2, TestPredFlag | SafePredFlag);
#endif
#ifdef DEBUG
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Yap_InitCPred("dump_active_goals", 0, p_dump_active_goals,
SafePredFlag | SyncPredFlag);
#endif
Yap_InitArrayPreds();
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Yap_InitAtomPreds();
Yap_InitBBPreds();
Yap_InitBigNums();
Yap_InitCdMgr();
Yap_InitCmpPreds();
Yap_InitCoroutPreds();
Yap_InitDBPreds();
Yap_InitExecFs();
Yap_InitGlobals();
Yap_InitInlines();
Yap_InitIOPreds();
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Yap_InitExoPreds();
Yap_InitLoadForeign();
Yap_InitModulesC();
Yap_InitSavePreds();
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Yap_InitRange();
Yap_InitSysPreds();
Yap_InitUnify();
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Yap_InitQLY();
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Yap_InitQLYR();
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Yap_InitStInfo();
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Yap_udi_init();
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Yap_udi_Interval_init();
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Yap_InitSignalCPreds();
Yap_InitUserCPreds();
Yap_InitUtilCPreds();
Yap_InitSortPreds();
Yap_InitMaVarCPreds();
#ifdef DEPTH_LIMIT
Yap_InitItDeepenPreds();
#endif
#ifdef ANALYST
Yap_InitAnalystPreds();
#endif
#ifdef LOW_LEVEL_TRACER
Yap_InitLowLevelTrace();
#endif
Yap_InitEval();
Yap_InitGrowPreds();
Yap_InitLowProf();
#if defined(YAPOR) || defined(TABLING)
Yap_init_optyap_preds();
#endif /* YAPOR || TABLING */
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#if YAP_JIT
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Yap_InitCPred("jit", 0, p_jit, SafePredFlag | SyncPredFlag);
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#endif
Yap_InitThreadPreds();
{
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void (*(*(p)))(void) = E_Modules;
while (*p)
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(*(*p++))();
}
#if CAMACHO
{
extern void InitForeignPreds(void);
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Yap_InitForeignPreds();
}
#endif
#if APRIL
{
extern void init_ol(void), init_time(void);
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init_ol();
init_time();
}
#endif
#if SUPPORT_CONDOR
init_sys();
init_random();
// init_tries();
init_regexp();
#endif
}