1644 lines
42 KiB
C
Executable File
1644 lines
42 KiB
C
Executable File
/*************************************************************************
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* *
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* YAP Prolog *
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* *
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* Yap Prolog was developed at NCCUP - Universidade do Porto *
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* *
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* Copyright L.Damas, V. Santos Costa and Universidade do Porto 1985-- *
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* *
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**************************************************************************
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* *
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* File: stdpreds.c *
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* comments: General-purpose C implemented system predicates *
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* *
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* Last rev: $Date: 2008-07-24 16:02:00 $,$Author: vsc $
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* *
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* *
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*************************************************************************/
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#ifdef SCCS
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static char SccsId[] = "%W% %G%";
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#endif
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#define HAS_CACHE_REGS 1
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/*
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* This file includes the definition of a miscellania of standard predicates
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* for yap refering to: Consulting, Executing a C predicate from call,
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* Comparisons (both general and numeric), Structure manipulation, Direct
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* access to atoms and predicates, Basic support for the debugger
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*
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* It also includes a table where all C-predicates are initializated
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*
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*/
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#include "Yap.h"
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#if YAP_JIT
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#include "amijit.h"
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#endif
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#include "Foreign.h"
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#include "YapHeap.h"
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#include "Yatom.h"
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#include "YapEval.h"
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#include "yapio.h"
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#ifdef TABLING
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#include "tab.macros.h"
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#endif /* TABLING */
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <stdio.h>
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#if HAVE_STRING_H
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#include <string.h>
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#endif
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#if HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#if YAP_JIT
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#include <JIT_Compiler.hpp>
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#endif
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#include <fcntl.h>
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#include <wchar.h>
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extern int init_tries(void);
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static Int p_setval(USES_REGS1);
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static Int p_value(USES_REGS1);
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static Int p_values(USES_REGS1);
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#ifdef undefined
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static CODEADDR *FindAtom(CODEADDR, int *);
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#endif /* undefined */
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static Int p_opdec(USES_REGS1);
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static Int p_univ(USES_REGS1);
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static Int p_abort(USES_REGS1);
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#ifdef BEAM
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Int p_halt(USES_REGS1);
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#else
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static Int p_halt(USES_REGS1);
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#endif
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static Int current_predicate(USES_REGS1);
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static Int cont_current_predicate(USES_REGS1);
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static OpEntry *NextOp(Prop CACHE_TYPE);
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static Int init_current_op(USES_REGS1);
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static Int cont_current_op(USES_REGS1);
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static Int init_current_atom_op(USES_REGS1);
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static Int cont_current_atom_op(USES_REGS1);
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static Int TrailMax(void);
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static Int GlobalMax(void);
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static Int LocalMax(void);
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static Int p_statistics_heap_max(USES_REGS1);
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static Int p_statistics_global_max(USES_REGS1);
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static Int p_statistics_local_max(USES_REGS1);
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static Int p_statistics_heap_info(USES_REGS1);
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static Int p_statistics_stacks_info(USES_REGS1);
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static Int p_statistics_trail_info(USES_REGS1);
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static Int p_cputime(USES_REGS1);
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static Int p_systime(USES_REGS1);
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static Int p_runtime(USES_REGS1);
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static Int p_walltime(USES_REGS1);
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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);
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void (*Yap_llvmShutdown)(void);
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Int (*Yap_traced_absmi)(void);
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static Int p_jit(USES_REGS1) { /* '$set_value'(+Atom,+Atomic) */
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void *jit_handle;
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if ((jit_handle = Yap_LoadForeignFile(YAP_YAPJITLIB, 0))) {
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if (!Yap_CallForeignFile(jit_handle, "init_jit"))
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fprintf(stderr, "Could not load JIT\n");
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return FALSE;
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}
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return TRUE;
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}
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#endif /* YAP_JIT */
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#ifdef BEAM
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Int use_eam(USES_REGS1);
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Int eager_split(USES_REGS1);
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Int force_wait(USES_REGS1);
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Int commit(USES_REGS1);
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Int skip_while_var(USES_REGS1);
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Int wait_while_var(USES_REGS1);
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Int show_time(USES_REGS1);
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Int start_eam(USES_REGS1);
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Int cont_eam(USES_REGS1);
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extern int EAM;
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extern int eam_am(PredEntry *);
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extern int showTime(void);
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Int start_eam(USES_REGS1) {
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if (eam_am((PredEntry *)0x1))
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return (TRUE);
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else {
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cut_fail();
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return (FALSE);
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}
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}
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Int cont_eam(USES_REGS1) {
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if (eam_am((PredEntry *)0x2))
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return (TRUE);
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else {
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cut_fail();
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return (FALSE);
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}
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}
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Int use_eam(USES_REGS1) {
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if (EAM)
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EAM = 0;
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else {
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Yap_PutValue(AtomCArith, 0);
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EAM = 1;
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}
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return (TRUE);
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}
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Int commit(USES_REGS1) {
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if (EAM) {
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printf("Nao deveria ter sido chamado commit do stdpreds\n");
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exit(1);
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}
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return (TRUE);
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}
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Int skip_while_var(USES_REGS1) {
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if (EAM) {
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printf("Nao deveria ter sido chamado skip_while_var do stdpreds\n");
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exit(1);
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}
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return (TRUE);
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}
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Int wait_while_var(USES_REGS1) {
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if (EAM) {
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printf("Nao deveria ter sido chamado wait_while_var do stdpreds\n");
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exit(1);
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}
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return (TRUE);
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}
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Int force_wait(USES_REGS1) {
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if (EAM) {
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printf("Nao deveria ter sido chamado force_wait do stdpreds\n");
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exit(1);
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}
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return (TRUE);
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}
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Int eager_split(USES_REGS1) {
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if (EAM) {
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printf("Nao deveria ter sido chamado eager_split do stdpreds\n");
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exit(1);
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}
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return (TRUE);
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}
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Int show_time(USES_REGS1) /* MORE PRECISION */
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{
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return (showTime());
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}
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#endif /* BEAM */
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/**
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@defgroup YAPSetVal Atom to Atomic Family of Built-ins.
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@ingroup Internal_Database
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@{
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Maintain a light-weight map where the key is an atom, and the value can be
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any constant.
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*/
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/** @pred set_value(+ _A_,+ _C_)
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Associate atom _A_ with constant _C_.
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The `set_value` and `get_value` built-ins give a fast alternative to
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the internal data-base. This is a simple form of implementing a global
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counter.
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~~~~~
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read_and_increment_counter(Value) :-
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get_value(counter, Value),
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Value1 is Value+1,
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set_value(counter, Value1).
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~~~~~
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This predicate is YAP specific.
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*/
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static Int p_setval(USES_REGS1) { /* '$set_value'(+Atom,+Atomic) */
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Term t1 = Deref(ARG1), t2 = Deref(ARG2);
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if (!IsVarTerm(t1) && IsAtomTerm(t1) &&
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(!IsVarTerm(t2) && (IsAtomTerm(t2) || IsNumTerm(t2)))) {
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Yap_PutValue(AtomOfTerm(t1), t2);
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return (TRUE);
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}
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return (FALSE);
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}
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/** @pred get_value(+ _A_,- _V_)
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In YAP, atoms can be associated with constants. If one such
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association exists for atom _A_, unify the second argument with the
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constant. Otherwise, unify _V_ with `[]`.
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This predicate is YAP specific.
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*/
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static Int p_value(USES_REGS1) { /* '$get_value'(+Atom,?Val) */
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Term t1 = Deref(ARG1);
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if (IsVarTerm(t1)) {
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Yap_Error(INSTANTIATION_ERROR, t1, "get_value/2");
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return (FALSE);
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}
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if (!IsAtomTerm(t1)) {
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Yap_Error(TYPE_ERROR_ATOM, t1, "get_value/2");
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return (FALSE);
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}
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return (Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1))));
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}
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static Int p_values(USES_REGS1) { /* '$values'(Atom,Old,New) */
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Term t1 = Deref(ARG1), t3 = Deref(ARG3);
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if (IsVarTerm(t1)) {
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Yap_Error(INSTANTIATION_ERROR, t1, "set_value/2");
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return (FALSE);
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}
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if (!IsAtomTerm(t1)) {
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Yap_Error(TYPE_ERROR_ATOM, t1, "set_value/2");
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return (FALSE);
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}
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if (!Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1)))) {
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return (FALSE);
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}
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if (!IsVarTerm(t3)) {
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if (IsAtomTerm(t3) || IsNumTerm(t3)) {
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Yap_PutValue(AtomOfTerm(t1), t3);
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} else
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return (FALSE);
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}
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return (TRUE);
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}
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///@}
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static Int p_opdec(USES_REGS1) { /* '$opdec'(p,type,atom) */
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/* we know the arguments are integer, atom, atom */
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Term p = Deref(ARG1), t = Deref(ARG2), at = Deref(ARG3);
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Term tmod = Deref(ARG4);
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if (tmod == TermProlog) {
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tmod = PROLOG_MODULE;
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}
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return Yap_OpDec((int)IntOfTerm(p), (char *)RepAtom(AtomOfTerm(t))->StrOfAE,
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AtomOfTerm(at), tmod);
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}
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#ifdef NO_STRTOD
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#if HAVE_CTYPE_H
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#include <ctype.h>
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#endif
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double strtod(s, pe) char *s, **pe;
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{
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double r = atof(s);
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*pe = s;
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while (*s == ' ') {
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++s;
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}
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if (*s == '+' || *s == '-') {
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++s;
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}
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if (!isdigit(*s)) {
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return (r);
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}
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while (isdigit(*s)) {
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++s;
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}
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if (*s == '.') {
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++s;
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}
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while (isdigit(*s)) {
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++s;
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}
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if (*s == 'e' || *s == 'E') {
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++s;
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}
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if (*s == '+' || *s == '-') {
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++s;
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}
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while (isdigit(*s)) {
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++s;
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}
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*pe = s;
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return (r);
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}
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#else
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#include <stdlib.h>
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#endif
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#ifndef INFINITY
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#define INFINITY (1.0 / 0.0)
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#endif
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static UInt runtime(USES_REGS1) {
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return (Yap_cputime() - Yap_total_gc_time() - Yap_total_stack_shift_time());
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}
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/* $runtime(-SinceInterval,-SinceStart) */
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static Int p_runtime(USES_REGS1) {
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Int now, interval, gc_time, ss_time;
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Term tnow, tinterval;
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Yap_cputime_interval(&now, &interval);
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gc_time = Yap_total_gc_time();
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now -= gc_time;
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ss_time = Yap_total_stack_shift_time();
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now -= ss_time;
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interval -= (gc_time - LOCAL_LastGcTime) + (ss_time - LOCAL_LastSSTime);
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LOCAL_LastGcTime = gc_time;
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LOCAL_LastSSTime = ss_time;
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tnow = MkIntegerTerm(now);
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tinterval = MkIntegerTerm(interval);
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return (Yap_unify_constant(ARG1, tnow) &&
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Yap_unify_constant(ARG2, tinterval));
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}
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/* $cputime(-SinceInterval,-SinceStart) */
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static Int p_cputime(USES_REGS1) {
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Int now, interval;
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Yap_cputime_interval(&now, &interval);
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now)) &&
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Yap_unify_constant(ARG2, MkIntegerTerm(interval)));
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}
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static Int p_systime(USES_REGS1) {
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Int now, interval;
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Yap_systime_interval(&now, &interval);
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now)) &&
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Yap_unify_constant(ARG2, MkIntegerTerm(interval)));
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}
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static Int p_walltime(USES_REGS1) {
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uint64_t now, interval;
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uint64_t t = Yap_walltime();
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now = t - Yap_StartOfWTimes;
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interval = t - LOCAL_LastWTime;
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return (Yap_unify_constant(ARG1, MkIntegerTerm(now / 1000)) &&
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Yap_unify_constant(ARG2, MkIntegerTerm(interval / 1000)));
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}
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static Int p_univ(USES_REGS1) { /* A =.. L */
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unsigned int arity;
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register Term tin;
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Term twork, t2;
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Atom at;
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tin = Deref(ARG1);
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t2 = Deref(ARG2);
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if (IsVarTerm(tin)) {
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/* we need to have a list */
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Term *Ar;
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if (IsVarTerm(t2)) {
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Yap_Error(INSTANTIATION_ERROR, t2, "(=..)/2");
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return (FALSE);
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}
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if (!IsPairTerm(t2)) {
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if (t2 == TermNil)
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Yap_Error(DOMAIN_ERROR_NON_EMPTY_LIST, t2, "(=..)/2");
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else
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Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2");
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return (FALSE);
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}
|
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twork = HeadOfTerm(t2);
|
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if (IsVarTerm(twork)) {
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Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
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return (FALSE);
|
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}
|
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if (IsNumTerm(twork)) {
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|
Term tt = TailOfTerm(t2);
|
|
if (IsVarTerm(tt)) {
|
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Yap_Error(INSTANTIATION_ERROR, tt, "(=..)/2");
|
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return (FALSE);
|
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}
|
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if (tt != MkAtomTerm(AtomNil)) {
|
|
Yap_Error(TYPE_ERROR_ATOMIC, twork, "(=..)/2");
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return (FALSE);
|
|
}
|
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return (Yap_unify_constant(ARG1, twork));
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}
|
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if (!IsAtomTerm(twork)) {
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Term tt = TailOfTerm(t2);
|
|
if (IsVarTerm(tt)) {
|
|
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
|
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return (FALSE);
|
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} else if (tt == MkAtomTerm(AtomNil)) {
|
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Yap_Error(TYPE_ERROR_ATOMIC, twork, "(=..)/2");
|
|
return (FALSE);
|
|
} else {
|
|
Yap_Error(TYPE_ERROR_ATOM, twork, "(=..)/2");
|
|
return (FALSE);
|
|
}
|
|
}
|
|
at = AtomOfTerm(twork);
|
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twork = TailOfTerm(t2);
|
|
if (IsVarTerm(twork)) {
|
|
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
|
|
return (FALSE);
|
|
} else if (!IsPairTerm(twork)) {
|
|
if (twork != TermNil) {
|
|
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 */
|
|
Ar = HR;
|
|
HR++;
|
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|
|
while (!IsVarTerm(twork) && IsPairTerm(twork)) {
|
|
*HR++ = HeadOfTerm(twork);
|
|
if (HR > ASP - 1024) {
|
|
/* 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);
|
|
return FALSE;
|
|
}
|
|
twork = TailOfTerm(Deref(ARG2));
|
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goto build_compound;
|
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}
|
|
twork = TailOfTerm(twork);
|
|
}
|
|
if (IsVarTerm(twork)) {
|
|
Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2");
|
|
return (FALSE);
|
|
}
|
|
if (twork != TermNil) {
|
|
Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2");
|
|
return (FALSE);
|
|
}
|
|
#ifdef SFUNC
|
|
DOES_NOT_WORK();
|
|
{
|
|
SFEntry *pe = (SFEntry *)Yap_GetAProp(at, SFProperty);
|
|
if (pe)
|
|
twork = MkSFTerm(Yap_MkFunctor(at, SFArity), arity, CellPtr(TR),
|
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pe->NilValue);
|
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else
|
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twork = Yap_MkApplTerm(Yap_MkFunctor(at, arity), arity, CellPtr(TR));
|
|
}
|
|
#else
|
|
arity = HR - Ar - 1;
|
|
if (at == AtomDot && arity == 2) {
|
|
Ar[0] = Ar[1];
|
|
Ar[1] = Ar[2];
|
|
HR--;
|
|
twork = AbsPair(Ar);
|
|
} 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)) {
|
|
Functor fun = FunctorOfTerm(tin);
|
|
if (IsExtensionFunctor(fun)) {
|
|
twork = MkPairTerm(tin, MkAtomTerm(AtomNil));
|
|
return (Yap_unify(twork, ARG2));
|
|
}
|
|
arity = ArityOfFunctor(fun);
|
|
at = NameOfFunctor(fun);
|
|
#ifdef SFUNC
|
|
if (arity == SFArity) {
|
|
CELL *p = CellPtr(TR);
|
|
CELL *q = ArgsOfSFTerm(tin);
|
|
int argno = 1;
|
|
while (*q) {
|
|
while (*q > argno++)
|
|
*p++ = MkVarTerm();
|
|
++q;
|
|
*p++ = Deref(*q++);
|
|
}
|
|
twork = Yap_ArrayToList(CellPtr(TR), argno - 1);
|
|
while (IsIntTerm(twork)) {
|
|
if (!Yap_gc(2, ENV, gc_P(P, CP))) {
|
|
Yap_Error(RESOURCE_ERROR_STACK, TermNil, LOCAL_ErrorMessage);
|
|
return (FALSE);
|
|
}
|
|
twork = Yap_ArrayToList(CellPtr(TR), argno - 1);
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
while (HR + arity * 2 > ASP - 1024) {
|
|
if (!Yap_gcl((arity * 2) * sizeof(CELL), 2, ENV, gc_P(P, CP))) {
|
|
Yap_Error(RESOURCE_ERROR_STACK, TermNil, LOCAL_ErrorMessage);
|
|
return (FALSE);
|
|
}
|
|
tin = Deref(ARG1);
|
|
}
|
|
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));
|
|
}
|
|
|
|
static Int p_abort(USES_REGS1) { /* abort */
|
|
/* make sure we won't go creeping around */
|
|
Yap_Error(ABORT_EVENT, TermNil, "");
|
|
return (FALSE);
|
|
}
|
|
|
|
#ifdef BEAM
|
|
extern void exit_eam(char *s);
|
|
|
|
Int
|
|
#else
|
|
static Int
|
|
#endif
|
|
p_halt(USES_REGS1) { /* halt */
|
|
Term t = Deref(ARG1);
|
|
Int out;
|
|
|
|
#ifdef BEAM
|
|
if (EAM)
|
|
exit_eam("\n\n[ Prolog execution halted ]\n");
|
|
#endif
|
|
|
|
if (IsVarTerm(t)) {
|
|
Yap_Error(INSTANTIATION_ERROR, t, "halt/1");
|
|
return (FALSE);
|
|
}
|
|
if (!IsIntegerTerm(t)) {
|
|
Yap_Error(TYPE_ERROR_INTEGER, t, "halt/1");
|
|
return (FALSE);
|
|
}
|
|
out = IntegerOfTerm(t);
|
|
#if YAP_JIT
|
|
if (ExpEnv.analysis_struc.stats_enabled ||
|
|
ExpEnv.analysis_struc.time_pass_enabled) {
|
|
if (strcmp(((char *)ExpEnv.analysis_struc.outfile), "STDERR")) {
|
|
int stderrcopy = dup(2);
|
|
if (strcmp(((char *)ExpEnv.analysis_struc.outfile), "STDOUT") == 0) {
|
|
dup2(1, 2);
|
|
#pragma GCC diagnostic push
|
|
#pragma GCC diagnostic ignored "-Wimplicit-function-declaration"
|
|
shutdown_llvm();
|
|
#pragma GCC diagnostic pop
|
|
dup2(stderrcopy, 2);
|
|
} else {
|
|
int Outputfile = open(((char *)ExpEnv.analysis_struc.outfile),
|
|
O_CREAT | O_APPEND | O_WRONLY, 0777);
|
|
if (Outputfile < 0) {
|
|
fprintf(stderr,
|
|
"Error:: I can not write analysis passes's output on %s...\n",
|
|
((char *)ExpEnv.analysis_struc.outfile));
|
|
fprintf(stderr, " %s...\n", strerror(errno));
|
|
errno = 0;
|
|
exit(1);
|
|
}
|
|
dup2(Outputfile, 2);
|
|
shutdown_llvm();
|
|
close(Outputfile);
|
|
dup2(stderrcopy, 2);
|
|
}
|
|
close(stderrcopy);
|
|
} else
|
|
shutdown_llvm();
|
|
}
|
|
#endif
|
|
|
|
Yap_exit(out);
|
|
return TRUE;
|
|
}
|
|
|
|
static bool valid_prop(Prop p, Term task) {
|
|
PredEntry *pe = RepPredProp(p);
|
|
if ((pe->PredFlags & HiddenPredFlag) || (pe->OpcodeOfPred == UNDEF_OPCODE)) {
|
|
return false;
|
|
}
|
|
if (task == TermSystem || task == TermProlog) {
|
|
return pe->PredFlags & StandardPredFlag;
|
|
}
|
|
if (task == TermUser) {
|
|
return !(pe->PredFlags & StandardPredFlag);
|
|
}
|
|
if (IsVarTerm(task)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static PropEntry *followLinkedListOfProps(PropEntry *p, Term task) {
|
|
while (p) {
|
|
if (p->KindOfPE == PEProp && valid_prop(p, task)) {
|
|
// found our baby..
|
|
return p;
|
|
}
|
|
p = p->NextOfPE;
|
|
}
|
|
return NIL;
|
|
}
|
|
|
|
static PropEntry *getPredProp(PropEntry *p, Term task) {
|
|
if (p == NIL)
|
|
return NIL;
|
|
while (p != NIL) {
|
|
if (p->KindOfPE == PEProp && valid_prop(p, task)) {
|
|
return p;
|
|
} else if (p->KindOfPE == FunctorProperty) {
|
|
// first search remainder of functor list
|
|
Prop pf;
|
|
if ((pf = followLinkedListOfProps(RepFunctorProp(p)->PropsOfFE, task))) {
|
|
return pf;
|
|
}
|
|
}
|
|
p = p->NextOfPE;
|
|
}
|
|
return NIL;
|
|
}
|
|
|
|
static PropEntry *nextPredForAtom(PropEntry *p, Term task) {
|
|
PredEntry *pe;
|
|
if (p == NIL)
|
|
return NIL;
|
|
pe = RepPredProp(p);
|
|
if (pe->ArityOfPE == 0 ||
|
|
(pe->PredFlags & (NumberDBPredFlag | AtomDBPredFlag))) {
|
|
// if atom prop, search atom list
|
|
return followLinkedListOfProps(p->NextOfPE, task);
|
|
} else {
|
|
FunctorEntry *f = pe->FunctorOfPred;
|
|
// first search remainder of functor list
|
|
PropEntry *pf;
|
|
if ((pf = followLinkedListOfProps(p->NextOfPE, task))) {
|
|
return pf;
|
|
}
|
|
|
|
// if that fails, follow the functor
|
|
return getPredProp(f->NextOfPE, task);
|
|
}
|
|
}
|
|
|
|
static Prop initFunctorSearch(Term t3, Term t2, Term task) {
|
|
if (IsAtomTerm(t3)) {
|
|
Atom at = AtomOfTerm(t3);
|
|
// access the entry at key address.
|
|
return followLinkedListOfProps(RepAtom(at)->PropsOfAE, task);
|
|
} else if (IsIntTerm(t3)) {
|
|
if (IsNonVarTerm(t2) && t2 != IDB_MODULE) {
|
|
Yap_Error(TYPE_ERROR_CALLABLE, t3, "current_predicate/2");
|
|
return NULL;
|
|
} else {
|
|
Prop p;
|
|
// access the entry at key address.
|
|
// a single property (this will be deterministic
|
|
p = AbsPredProp(Yap_FindLUIntKey(IntOfTerm(t3)));
|
|
if (valid_prop(p, task))
|
|
return p;
|
|
}
|
|
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)) {
|
|
Yap_Error(TYPE_ERROR_CALLABLE, t3, "current_predicate/2");
|
|
return NULL;
|
|
}
|
|
}
|
|
return followLinkedListOfProps(f->PropsOfFE, task);
|
|
}
|
|
}
|
|
|
|
static PredEntry *firstModulePred(PredEntry *npp, Term task) {
|
|
if (!npp)
|
|
return NULL;
|
|
do {
|
|
npp = npp->NextPredOfModule;
|
|
} while (npp && !valid_prop(AbsPredProp(npp), task));
|
|
return npp;
|
|
}
|
|
|
|
static PredEntry *firstModulesPred(PredEntry *npp, ModEntry *m, Term task) {
|
|
do {
|
|
while (npp && !valid_prop(AbsPredProp(npp), task))
|
|
npp = npp->NextPredOfModule;
|
|
if (npp)
|
|
return npp;
|
|
m = m->NextME;
|
|
if (m) {
|
|
npp = m->PredForME;
|
|
} else
|
|
return NULL;
|
|
} while (npp || m);
|
|
return npp;
|
|
}
|
|
|
|
static Int cont_current_predicate(USES_REGS1) {
|
|
UInt Arity;
|
|
Term name, task;
|
|
Term t1 = ARG1, t2 = Deref(ARG2), t3 = ARG3;
|
|
bool rc, will_cut = false;
|
|
Functor f;
|
|
PredEntry *pp;
|
|
t1 = Yap_YapStripModule(t1, &t2);
|
|
t3 = Yap_YapStripModule(t3, &t2);
|
|
t1 = Deref(t1);
|
|
t2 = Deref(t2);
|
|
task = Deref(ARG4);
|
|
|
|
pp = AddressOfTerm(EXTRA_CBACK_ARG(4, 1));
|
|
if (IsNonVarTerm(t3)) {
|
|
PropEntry *np, *p;
|
|
|
|
if (IsNonVarTerm(t2)) {
|
|
// module and functor known, should be easy
|
|
if (IsAtomTerm(t3)) {
|
|
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();
|
|
}
|
|
}
|
|
}
|
|
|
|
// t3 is a functor, or compound term,
|
|
// just follow the functor chain
|
|
p = AbsPredProp(pp);
|
|
if (!p) {
|
|
// initial search, tracks down what is the first call with
|
|
// that name, functor..
|
|
p = initFunctorSearch(t3, t2, task);
|
|
// now, we can do lookahead.
|
|
if (p == NIL)
|
|
cut_fail();
|
|
pp = RepPredProp(p);
|
|
}
|
|
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;
|
|
}
|
|
} else if (IsNonVarTerm(t1)) {
|
|
PropEntry *np, *p;
|
|
// run over the same atom any predicate defined for that atom
|
|
// may be fair bait, depends on whether we know the module.
|
|
p = AbsPredProp(pp);
|
|
if (!p) {
|
|
// initialization time
|
|
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);
|
|
} else {
|
|
Yap_Error(TYPE_ERROR_CALLABLE, t1, "current_predicate/2");
|
|
return false;
|
|
}
|
|
if (!p)
|
|
cut_fail();
|
|
pp = RepPredProp(p);
|
|
}
|
|
// now, we can do lookahead.
|
|
np = nextPredForAtom(p, task);
|
|
if (!np)
|
|
will_cut = true;
|
|
else {
|
|
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(RepPredProp(np));
|
|
B->cp_h = HR;
|
|
}
|
|
} else if (IsNonVarTerm(t2)) {
|
|
// operating within the same module.
|
|
PredEntry *npp;
|
|
|
|
if (!pp) {
|
|
if (!IsAtomTerm(t2)) {
|
|
Yap_Error(TYPE_ERROR_ATOM, t2, "module name");
|
|
}
|
|
ModEntry *m = Yap_GetModuleEntry(t2);
|
|
pp = m->PredForME;
|
|
while (pp && !valid_prop(AbsPredProp(pp), task)) {
|
|
pp = pp->NextPredOfModule;
|
|
}
|
|
if (!pp) {
|
|
/* try Prolog Module */
|
|
cut_fail();
|
|
}
|
|
}
|
|
npp = firstModulePred(pp, task);
|
|
|
|
if (!npp) {
|
|
will_cut = true;
|
|
}
|
|
// just try next one
|
|
else {
|
|
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(npp);
|
|
B->cp_h = HR;
|
|
}
|
|
} else {
|
|
// operating across all modules.
|
|
PredEntry *npp = pp;
|
|
ModEntry *me;
|
|
|
|
if (!pp) {
|
|
pp = firstModulesPred(CurrentModules->PredForME, CurrentModules, task);
|
|
}
|
|
if (!pp)
|
|
cut_fail();
|
|
if (pp->ModuleOfPred == PROLOG_MODULE)
|
|
me = Yap_GetModuleEntry(TermProlog);
|
|
else
|
|
me = Yap_GetModuleEntry(pp->ModuleOfPred);
|
|
npp = firstModulesPred(pp->NextPredOfModule, me, task);
|
|
if (!npp)
|
|
will_cut = true;
|
|
// just try next module.
|
|
else {
|
|
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(npp);
|
|
B->cp_h = HR;
|
|
}
|
|
}
|
|
|
|
if (pp->ModuleOfPred != IDB_MODULE) {
|
|
f = pp->FunctorOfPred;
|
|
Arity = pp->ArityOfPE;
|
|
if (Arity)
|
|
name = MkAtomTerm(NameOfFunctor(f));
|
|
else
|
|
name = MkAtomTerm((Atom)f);
|
|
} else {
|
|
if (pp->PredFlags & NumberDBPredFlag) {
|
|
name = MkIntegerTerm(pp->src.IndxId);
|
|
Arity = 0;
|
|
} else if (pp->PredFlags & AtomDBPredFlag) {
|
|
f = pp->FunctorOfPred;
|
|
name = MkAtomTerm((Atom)f);
|
|
Arity = 0;
|
|
} else {
|
|
f = pp->FunctorOfPred;
|
|
name = MkAtomTerm(NameOfFunctor(f));
|
|
Arity = ArityOfFunctor(pp->FunctorOfPred);
|
|
}
|
|
}
|
|
if (Arity) {
|
|
rc = Yap_unify(ARG3, Yap_MkNewApplTerm(f, Arity));
|
|
} else {
|
|
rc = Yap_unify(ARG3, name);
|
|
}
|
|
rc = rc && (IsAtomTerm(t2) || Yap_unify(ARG2, ModToTerm(pp->ModuleOfPred))) &&
|
|
Yap_unify(ARG1, name);
|
|
if (will_cut) {
|
|
if (rc)
|
|
cut_succeed();
|
|
cut_fail();
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
static Int current_predicate(USES_REGS1) {
|
|
EXTRA_CBACK_ARG(4, 1) = MkAddressTerm(NULL);
|
|
// ensure deref access to choice-point fields.
|
|
return cont_current_predicate(PASS_REGS1);
|
|
}
|
|
|
|
static OpEntry *NextOp(Prop pp USES_REGS) {
|
|
|
|
while (!EndOfPAEntr(pp) &&
|
|
pp->KindOfPE != OpProperty &&
|
|
(RepOpProp(pp)->OpModule != PROLOG_MODULE || RepOpProp(pp)->OpModule != CurrentModule)
|
|
)
|
|
pp = pp->NextOfPE;
|
|
return RepOpProp(pp);
|
|
}
|
|
|
|
int Yap_IsOp(Atom at) {
|
|
CACHE_REGS
|
|
OpEntry *op = NextOp(RepAtom(at)->PropsOfAE PASS_REGS);
|
|
return (!EndOfPAEntr(op));
|
|
}
|
|
|
|
int Yap_IsOpMaxPrio(Atom at) {
|
|
CACHE_REGS
|
|
OpEntry *op = NextOp(RepAtom(at)->PropsOfAE PASS_REGS);
|
|
int max;
|
|
|
|
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;
|
|
}
|
|
|
|
static Int unify_op(OpEntry *op USES_REGS) {
|
|
Term tmod = op->OpModule;
|
|
|
|
if (tmod == PROLOG_MODULE)
|
|
tmod = TermProlog;
|
|
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));
|
|
}
|
|
|
|
static Int cont_current_op(USES_REGS1) {
|
|
OpEntry *op = (OpEntry *)IntegerOfTerm(EXTRA_CBACK_ARG(5, 1)), *next;
|
|
|
|
READ_LOCK(op->OpRWLock);
|
|
next = op->OpNext;
|
|
if (Yap_unify_constant(ARG1, MkAtomTerm(op->OpName)) &&
|
|
unify_op(op PASS_REGS)) {
|
|
READ_UNLOCK(op->OpRWLock);
|
|
if (next) {
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
|
|
B->cp_h = HR;
|
|
return TRUE;
|
|
} else {
|
|
cut_succeed();
|
|
}
|
|
} else {
|
|
READ_UNLOCK(op->OpRWLock);
|
|
if (next) {
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
|
|
B->cp_h = HR;
|
|
return FALSE;
|
|
} else {
|
|
cut_fail();
|
|
}
|
|
}
|
|
}
|
|
|
|
static Int init_current_op(
|
|
USES_REGS1) { /* current_op(-Precedence,-Type,-Atom) */
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)OpList);
|
|
B->cp_h = HR;
|
|
return cont_current_op(PASS_REGS1);
|
|
}
|
|
|
|
static Int cont_current_atom_op(USES_REGS1) {
|
|
OpEntry *op = (OpEntry *)IntegerOfTerm(EXTRA_CBACK_ARG(5, 1)), *next;
|
|
|
|
READ_LOCK(op->OpRWLock);
|
|
next = NextOp(op->NextOfPE PASS_REGS);
|
|
if (unify_op(op PASS_REGS)) {
|
|
READ_UNLOCK(op->OpRWLock);
|
|
if (next) {
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
|
|
B->cp_h = HR;
|
|
return TRUE;
|
|
} else {
|
|
cut_succeed();
|
|
}
|
|
} else {
|
|
READ_UNLOCK(op->OpRWLock);
|
|
if (next) {
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((CELL)next);
|
|
B->cp_h = HR;
|
|
return FALSE;
|
|
} else {
|
|
cut_fail();
|
|
}
|
|
}
|
|
}
|
|
|
|
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)) {
|
|
Yap_Error(TYPE_ERROR_ATOM, t, "current_op/3");
|
|
cut_fail();
|
|
}
|
|
ae = RepAtom(AtomOfTerm(t));
|
|
if (EndOfPAEntr((ope = NextOp(ae->PropsOfAE PASS_REGS)))) {
|
|
cut_fail();
|
|
}
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((Int)ope);
|
|
B->cp_h = HR;
|
|
return cont_current_atom_op(PASS_REGS1);
|
|
}
|
|
|
|
#if 0
|
|
static Int
|
|
copy_local_ops(USES_REGS1) { /* current_op(-Precedence,-Type,-Atom) */
|
|
Term tmodin = Deref(ARG1);
|
|
Term t = Deref(ARG1);
|
|
AtomEntry *ae;
|
|
OpEntry *ope;
|
|
|
|
if (IsVarTerm(t) || !IsAtomTerm(t)) {
|
|
Yap_Error(TYPE_ERROR_ATOM, t, "current_op/3");
|
|
cut_fail();
|
|
}
|
|
ae = RepAtom(AtomOfTerm(t));
|
|
if (EndOfPAEntr((ope = NextOp(ae->PropsOfAE PASS_REGS)))) {
|
|
cut_fail();
|
|
}
|
|
EXTRA_CBACK_ARG(5, 1) = (CELL)MkIntegerTerm((Int)ope);
|
|
B->cp_h = HR;
|
|
return cont_current_atom_op(PASS_REGS1);
|
|
}
|
|
#endif
|
|
|
|
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();
|
|
|
|
heap_space_taken = (mi.arena + mi.hblkhd) - Yap_HoleSize;
|
|
#else
|
|
heap_space_taken =
|
|
(unsigned long int)(Unsigned(HeapTop) - Unsigned(Yap_HeapBase)) -
|
|
Yap_HoleSize;
|
|
#endif
|
|
frag = (100.0 * (heap_space_taken - HeapUsed)) / heap_space_taken;
|
|
|
|
fprintf(stderr, "Code Space: " UInt_FORMAT " (" UInt_FORMAT
|
|
" bytes needed, " UInt_FORMAT " bytes used, "
|
|
"fragmentation %.3f%%).\n",
|
|
Unsigned(H0) - Unsigned(Yap_HeapBase),
|
|
Unsigned(HeapTop) - Unsigned(Yap_HeapBase), Unsigned(HeapUsed), frag);
|
|
fprintf(stderr, "Stack Space: " UInt_FORMAT " (" UInt_FORMAT
|
|
" for Global, " UInt_FORMAT " for local).\n",
|
|
Unsigned(sizeof(CELL) * (LCL0 - H0)),
|
|
Unsigned(sizeof(CELL) * (HR - H0)),
|
|
Unsigned(sizeof(CELL) * (LCL0 - ASP)));
|
|
fprintf(
|
|
stderr, "Trail Space: " UInt_FORMAT " (" UInt_FORMAT " used).\n",
|
|
Unsigned(sizeof(tr_fr_ptr) *
|
|
(Unsigned(LOCAL_TrailTop) - Unsigned(LOCAL_TrailBase))),
|
|
Unsigned(sizeof(tr_fr_ptr) * (Unsigned(TR) - Unsigned(LOCAL_TrailBase))));
|
|
fprintf(stderr, "Runtime: " UInt_FORMAT "\n", runtime(PASS_REGS1));
|
|
fprintf(stderr, "Cputime: " UInt_FORMAT "\n", Yap_cputime());
|
|
|
|
fprintf(stderr, "Walltime: %" PRIu64 ".\n", Yap_walltime() / (UInt)1000);
|
|
}
|
|
|
|
static Int p_statistics_heap_max(USES_REGS1) {
|
|
Term tmax = MkIntegerTerm(HeapMax);
|
|
|
|
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 */
|
|
|
|
static Int TrailTide = -1, LocalTide = -1, GlobalTide = -1;
|
|
|
|
/* maximum Trail usage */
|
|
static Int TrailMax(void) {
|
|
CACHE_REGS
|
|
Int i;
|
|
Int TrWidth = Unsigned(LOCAL_TrailTop) - Unsigned(LOCAL_TrailBase);
|
|
CELL *pt;
|
|
|
|
if (TrailTide != TrWidth) {
|
|
pt = (CELL *)TR;
|
|
while (pt + 2 < (CELL *)LOCAL_TrailTop) {
|
|
if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0)
|
|
break;
|
|
else
|
|
pt++;
|
|
}
|
|
if (pt + 2 < (CELL *)LOCAL_TrailTop)
|
|
i = Unsigned(pt) - Unsigned(LOCAL_TrailBase);
|
|
else
|
|
i = TrWidth;
|
|
} else
|
|
return (TrWidth);
|
|
if (TrailTide > i)
|
|
i = TrailTide;
|
|
else
|
|
TrailTide = i;
|
|
return (i);
|
|
}
|
|
|
|
static Int p_statistics_trail_max(USES_REGS1) {
|
|
Term tmax = MkIntegerTerm(TrailMax());
|
|
|
|
return (Yap_unify(tmax, ARG1));
|
|
}
|
|
|
|
/* maximum Global usage */
|
|
static Int GlobalMax(void) {
|
|
CACHE_REGS
|
|
Int i;
|
|
Int StkWidth = Unsigned(LCL0) - Unsigned(H0);
|
|
CELL *pt;
|
|
|
|
if (GlobalTide != StkWidth) {
|
|
pt = HR;
|
|
while (pt + 2 < ASP) {
|
|
if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0)
|
|
break;
|
|
else
|
|
pt++;
|
|
}
|
|
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
|
|
return (StkWidth);
|
|
if (GlobalTide > i)
|
|
i = GlobalTide;
|
|
else
|
|
GlobalTide = i;
|
|
return (i);
|
|
}
|
|
|
|
static Int p_statistics_global_max(USES_REGS1) {
|
|
Term tmax = MkIntegerTerm(GlobalMax());
|
|
|
|
return (Yap_unify(tmax, ARG1));
|
|
}
|
|
|
|
static Int LocalMax(void) {
|
|
CACHE_REGS
|
|
Int i;
|
|
Int StkWidth = Unsigned(LCL0) - Unsigned(H0);
|
|
CELL *pt;
|
|
|
|
if (LocalTide != StkWidth) {
|
|
pt = LCL0;
|
|
while (pt - 3 > HR) {
|
|
if (pt[-1] == 0 && pt[-2] == 0 && pt[-3] == 0)
|
|
break;
|
|
else
|
|
--pt;
|
|
}
|
|
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
|
|
return (StkWidth);
|
|
if (LocalTide > i)
|
|
i = LocalTide;
|
|
else
|
|
LocalTide = i;
|
|
return (i);
|
|
}
|
|
|
|
static Int p_statistics_local_max(USES_REGS1) {
|
|
Term tmax = MkIntegerTerm(LocalMax());
|
|
|
|
return (Yap_unify(tmax, ARG1));
|
|
}
|
|
|
|
static Int p_statistics_heap_info(USES_REGS1) {
|
|
Term tusage = MkIntegerTerm(HeapUsed);
|
|
|
|
#if USE_SYSTEM_MALLOC && HAVE_MALLINFO
|
|
struct mallinfo mi = mallinfo();
|
|
|
|
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
|
|
Term tmax = MkIntegerTerm((LOCAL_GlobalBase - Yap_HeapBase) - Yap_HoleSize);
|
|
#endif
|
|
|
|
return (Yap_unify(tmax, ARG1) && Yap_unify(tusage, ARG2));
|
|
}
|
|
|
|
static Int p_statistics_stacks_info(USES_REGS1) {
|
|
Term tmax = MkIntegerTerm(Unsigned(LCL0) - Unsigned(H0));
|
|
Term tgusage = MkIntegerTerm(Unsigned(HR) - Unsigned(H0));
|
|
Term tlusage = MkIntegerTerm(Unsigned(LCL0) - Unsigned(ASP));
|
|
|
|
return (Yap_unify(tmax, ARG1) && Yap_unify(tgusage, ARG2) &&
|
|
Yap_unify(tlusage, ARG3));
|
|
}
|
|
|
|
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));
|
|
|
|
return (Yap_unify(tmax, ARG1) && Yap_unify(tusage, ARG2));
|
|
}
|
|
|
|
static Int p_statistics_atom_info(USES_REGS1) {
|
|
UInt count = 0, spaceused = 0, i;
|
|
|
|
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++;
|
|
spaceused +=
|
|
sizeof(AtomEntry) + strlen((char *)RepAtom(catom)->StrOfAE) + 1;
|
|
ncatom = RepAtom(catom)->NextOfAE;
|
|
if (ncatom != NIL) {
|
|
READ_LOCK(RepAtom(ncatom)->ARWLock);
|
|
}
|
|
READ_UNLOCK(RepAtom(catom)->ARWLock);
|
|
catom = ncatom;
|
|
}
|
|
}
|
|
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++;
|
|
spaceused +=
|
|
sizeof(AtomEntry) +
|
|
sizeof(wchar_t) * (wcslen((wchar_t *)(RepAtom(catom)->StrOfAE) + 1));
|
|
ncatom = RepAtom(catom)->NextOfAE;
|
|
if (ncatom != NIL) {
|
|
READ_LOCK(RepAtom(ncatom)->ARWLock);
|
|
}
|
|
READ_UNLOCK(RepAtom(catom)->ARWLock);
|
|
catom = ncatom;
|
|
}
|
|
}
|
|
return Yap_unify(ARG1, MkIntegerTerm(count)) &&
|
|
Yap_unify(ARG2, MkIntegerTerm(spaceused));
|
|
}
|
|
|
|
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);
|
|
|
|
return Yap_unify(t, ARG1) && Yap_unify(tit, ARG2) && Yap_unify(tis, ARG3) &&
|
|
Yap_unify(tie, ARG4);
|
|
}
|
|
|
|
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);
|
|
|
|
return Yap_unify(t, ARG1) && Yap_unify(tit, ARG2) && Yap_unify(tic, ARG3) &&
|
|
Yap_unify(tis, ARG4) && Yap_unify(tix, ARG5);
|
|
}
|
|
|
|
static Int p_executable(USES_REGS1) {
|
|
int lvl = push_text_stack();
|
|
const char *tmp =
|
|
|
|
Yap_AbsoluteFile(GLOBAL_argv[0], true);
|
|
if (!tmp || tmp[0] == '\0' ) {
|
|
tmp = Malloc(YAP_FILENAME_MAX + 1);
|
|
strncpy((char *)tmp, Yap_FindExecutable(), YAP_FILENAME_MAX);
|
|
}
|
|
Atom at = Yap_LookupAtom(tmp);
|
|
pop_text_stack(lvl);
|
|
return Yap_unify(MkAtomTerm(at), ARG1);
|
|
}
|
|
|
|
static Int p_system_mode(USES_REGS1) {
|
|
Term t1 = Deref(ARG1);
|
|
|
|
if (IsVarTerm(t1)) {
|
|
if (LOCAL_PrologMode & SystemMode)
|
|
return Yap_unify(t1, MkAtomTerm(AtomTrue));
|
|
else
|
|
return Yap_unify(t1, MkAtomTerm(AtomFalse));
|
|
} else {
|
|
Atom at = AtomOfTerm(t1);
|
|
if (at == AtomFalse)
|
|
LOCAL_PrologMode &= ~SystemMode;
|
|
else
|
|
LOCAL_PrologMode |= SystemMode;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static Int p_lock_system(USES_REGS1) {
|
|
LOCK(GLOBAL_BGL);
|
|
return TRUE;
|
|
}
|
|
|
|
static Int p_unlock_system(USES_REGS1) {
|
|
UNLOCK(GLOBAL_BGL);
|
|
return TRUE;
|
|
}
|
|
|
|
static Int enter_undefp(USES_REGS1) {
|
|
if (LOCAL_DoingUndefp) {
|
|
return FALSE;
|
|
}
|
|
LOCAL_DoingUndefp = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
static Int exit_undefp(USES_REGS1) {
|
|
if (LOCAL_DoingUndefp) {
|
|
LOCAL_DoingUndefp = FALSE;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
extern void DumpActiveGoals(void);
|
|
|
|
static Int p_dump_active_goals(USES_REGS1) {
|
|
DumpActiveGoals();
|
|
return (TRUE);
|
|
}
|
|
#endif
|
|
|
|
#ifdef INES
|
|
static Int p_euc_dist(USES_REGS1) {
|
|
Term t1 = Deref(ARG1);
|
|
Term t2 = Deref(ARG2);
|
|
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;
|
|
|
|
static Int p_loop(USES_REGS1) {
|
|
while (loop_counter == 0)
|
|
;
|
|
return (TRUE);
|
|
}
|
|
#endif
|
|
|
|
static Int p_break(USES_REGS1) {
|
|
Atom at = AtomOfTerm(Deref(ARG1));
|
|
if (at == AtomTrue) {
|
|
LOCAL_BreakLevel++;
|
|
return TRUE;
|
|
}
|
|
if (at == AtomFalse) {
|
|
LOCAL_BreakLevel--;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void Yap_InitBackCPreds(void) {
|
|
Yap_InitCPredBack("$current_predicate", 4, 1, current_predicate,
|
|
cont_current_predicate, SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPredBack("$current_op", 5, 1, init_current_op, cont_current_op,
|
|
SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPredBack("$current_atom_op", 5, 1, init_current_atom_op,
|
|
cont_current_atom_op, SafePredFlag | SyncPredFlag);
|
|
#ifdef BEAM
|
|
Yap_InitCPredBack("eam", 1, 0, start_eam, cont_eam, SafePredFlag);
|
|
#endif
|
|
|
|
Yap_InitBackAtoms();
|
|
Yap_InitBackIO();
|
|
Yap_InitBackDB();
|
|
Yap_InitUserBacks();
|
|
}
|
|
|
|
typedef void (*Proc)(void);
|
|
|
|
Proc E_Modules[] = {/* init_fc,*/ (Proc)0};
|
|
|
|
#ifdef YAPOR
|
|
static Int p_parallel_mode(USES_REGS1) { return FALSE; }
|
|
|
|
static Int p_yapor_workers(USES_REGS1) { return FALSE; }
|
|
#endif /* YAPOR */
|
|
|
|
void Yap_InitCPreds(void) {
|
|
/* numerical comparison */
|
|
Yap_InitCPred("set_value", 2, p_setval, SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPred("get_value", 2, p_value,
|
|
TestPredFlag | SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPred("$values", 3, p_values, SafePredFlag | SyncPredFlag);
|
|
/* general purpose */
|
|
Yap_InitCPred("$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,
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SafePredFlag | SyncPredFlag);
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Yap_InitCPred("$statistics_global_max", 1, p_statistics_global_max,
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SafePredFlag | SyncPredFlag);
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Yap_InitCPred("$statistics_local_max", 1, p_statistics_local_max,
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|
SafePredFlag | SyncPredFlag);
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|
Yap_InitCPred("$statistics_heap_info", 2, p_statistics_heap_info,
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|
SafePredFlag | SyncPredFlag);
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|
Yap_InitCPred("$statistics_stacks_info", 3, p_statistics_stacks_info,
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|
SafePredFlag | SyncPredFlag);
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|
Yap_InitCPred("$statistics_trail_info", 2, p_statistics_trail_info,
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|
SafePredFlag | SyncPredFlag);
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|
Yap_InitCPred("$statistics_atom_info", 2, p_statistics_atom_info,
|
|
SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPred("$statistics_db_size", 4, p_statistics_db_size,
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|
SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPred("$statistics_lu_db_size", 5, p_statistics_lu_db_size,
|
|
SafePredFlag | SyncPredFlag);
|
|
Yap_InitCPred("$executable", 1, p_executable, SafePredFlag);
|
|
Yap_InitCPred("$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);
|
|
/** @pred abort
|
|
|
|
|
|
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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|
Yap_InitCPred("$break", 1, p_break, SafePredFlag);
|
|
#ifdef BEAM
|
|
Yap_InitCPred("@", 0, eager_split, SafePredFlag);
|
|
Yap_InitCPred(":", 0, force_wait, SafePredFlag);
|
|
Yap_InitCPred("/", 0, commit, SafePredFlag);
|
|
Yap_InitCPred("skip_while_var", 1, skip_while_var, SafePredFlag);
|
|
Yap_InitCPred("wait_while_var", 1, wait_while_var, SafePredFlag);
|
|
Yap_InitCPred("eamtime", 0, show_time, SafePredFlag);
|
|
Yap_InitCPred("eam", 0, use_eam, SafePredFlag);
|
|
#endif
|
|
Yap_InitCPred("$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("$enter_undefp", 0, enter_undefp, SafePredFlag);
|
|
Yap_InitCPred("$exit_undefp", 0, exit_undefp, SafePredFlag);
|
|
|
|
#ifdef YAP_JIT
|
|
Yap_InitCPred("$jit_init", 1, p_jit, SafePredFlag | SyncPredFlag);
|
|
#endif /* YAPOR */
|
|
#ifdef INES
|
|
Yap_InitCPred("euc_dist", 3, p_euc_dist, SafePredFlag);
|
|
Yap_InitCPred("loop", 0, p_loop, SafePredFlag);
|
|
#endif
|
|
#if QSAR
|
|
Yap_InitCPred("in_range", 8, p_in_range, TestPredFlag | SafePredFlag);
|
|
Yap_InitCPred("in_range", 4, p_in_range2, TestPredFlag | SafePredFlag);
|
|
#endif
|
|
#ifdef DEBUG
|
|
Yap_InitCPred("dump_active_goals", 0, p_dump_active_goals,
|
|
SafePredFlag | SyncPredFlag);
|
|
#endif
|
|
|
|
Yap_InitArrayPreds();
|
|
Yap_InitAtomPreds();
|
|
Yap_InitBBPreds();
|
|
Yap_InitBigNums();
|
|
Yap_InitCdMgr();
|
|
Yap_InitCmpPreds();
|
|
Yap_InitCoroutPreds();
|
|
Yap_InitDBPreds();
|
|
Yap_InitExecFs();
|
|
Yap_InitErrorPreds();
|
|
Yap_InitGlobals();
|
|
Yap_InitInlines();
|
|
Yap_InitIOPreds();
|
|
Yap_InitDBLoadPreds();
|
|
Yap_InitExoPreds();
|
|
Yap_InitLoadForeign();
|
|
Yap_InitModulesC();
|
|
Yap_InitSavePreds();
|
|
Yap_InitRange();
|
|
Yap_InitSysPreds();
|
|
Yap_InitUnify();
|
|
Yap_InitQLY();
|
|
Yap_InitQLYR();
|
|
Yap_InitStInfo();
|
|
Yap_udi_init();
|
|
Yap_udi_Interval_init();
|
|
Yap_InitSignalCPreds();
|
|
Yap_InitTermCPreds();
|
|
Yap_InitUserCPreds();
|
|
Yap_InitUtilCPreds();
|
|
Yap_InitSortPreds();
|
|
Yap_InitMaVarCPreds();
|
|
#ifdef DEPTH_LIMIT
|
|
Yap_InitItDeepenPreds();
|
|
#endif
|
|
#ifdef ANALYST
|
|
Yap_InitAnalystPreds();
|
|
#endif
|
|
Yap_InitLowLevelTrace();
|
|
Yap_InitEval();
|
|
Yap_InitGrowPreds();
|
|
Yap_InitLowProf();
|
|
#if defined(YAPOR) || defined(TABLING)
|
|
Yap_init_optyap_preds();
|
|
#endif /* YAPOR || TABLING */
|
|
#if YAP_JIT
|
|
Yap_InitCPred("jit", 0, p_jit, SafePredFlag | SyncPredFlag);
|
|
#endif
|
|
Yap_InitThreadPreds();
|
|
{
|
|
void (*(*(p)))(void) = E_Modules;
|
|
while (*p)
|
|
(*(*p++))();
|
|
}
|
|
#if CAMACHO
|
|
{
|
|
extern void InitForeignPreds(void);
|
|
|
|
Yap_InitForeignPreds();
|
|
}
|
|
#endif
|
|
#if APRIL
|
|
{
|
|
extern void init_ol(void), init_time(void);
|
|
|
|
init_ol();
|
|
init_time();
|
|
}
|
|
#endif
|
|
#if SUPPORT_CONDOR
|
|
init_sys();
|
|
init_random();
|
|
init_regexp();
|
|
#endif
|
|
}
|