3230 lines
70 KiB
C
Executable File
3230 lines
70 KiB
C
Executable File
/* yap2swi.c */
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/*
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* Project: jpl for Yap Prolog
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* Author: Steve Moyle and Vitor Santos Costa
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* Email: steve.moyle@comlab.ox.ac.uk
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* Date: 21 January 2002
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* Copyright (c) 2002 Steve Moyle. All rights reserved.
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*/
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//=== includes ===============================================================
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <wchar.h>
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#include <assert.h>
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#include <Yap.h>
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#include <Yatom.h>
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#include <YapHeap.h>
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#include <eval.h>
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#if HAVE_MATH_H
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#include <math.h>
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#endif
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#if HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#define PL_KERNEL 1
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#include <SWI-Stream.h>
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#include <SWI-Prolog.h>
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#include <yapio.h>
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#ifdef USE_GMP
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#include <gmp.h>
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#endif
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#ifdef __WIN32__
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/* Windows */
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#include <fcntl.h>
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#endif
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#define BUF_SIZE 256
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#define TMP_BUF_SIZE 2*BUF_SIZE
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#define BUF_RINGS 16
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/* Required by PL_error */
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#define ERR_NO_ERROR 0
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#define ERR_INSTANTIATION 1 /* void */
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#define ERR_TYPE 2 /* atom_t expected, term_t value */
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#define ERR_DOMAIN 3 /* atom_t domain, term_t value */
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#define ERR_REPRESENTATION 4 /* atom_t what */
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#define ERR_MODIFY_STATIC_PROC 5 /* predicate_t proc */
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#define ERR_EVALUATION 6 /* atom_t what */
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#define ERR_AR_TYPE 7 /* atom_t expected, Number value */
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#define ERR_NOT_EVALUABLE 8 /* functor_t func */
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#define ERR_DIV_BY_ZERO 9 /* void */
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#define ERR_FAILED 10 /* predicate_t proc */
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#define ERR_FILE_OPERATION 11 /* atom_t action, atom_t type, term_t */
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#define ERR_PERMISSION 12 /* atom_t type, atom_t op, term_t obj*/
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#define ERR_NOT_IMPLEMENTED 13 /* const char *what */
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#define ERR_EXISTENCE 14 /* atom_t type, term_t obj */
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#define ERR_STREAM_OP 15 /* atom_t action, term_t obj */
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#define ERR_RESOURCE 16 /* atom_t resource */
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#define ERR_NOMEM 17 /* void */
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#define ERR_SYSCALL 18 /* void */
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#define ERR_SHELL_FAILED 19 /* term_t command */
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#define ERR_SHELL_SIGNALLED 20 /* term_t command, int signal */
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#define ERR_AR_UNDEF 21 /* void */
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#define ERR_AR_OVERFLOW 22 /* void */
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#define ERR_AR_UNDERFLOW 23 /* void */
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#define ERR_UNDEFINED_PROC 24 /* Definition def */
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#define ERR_SIGNALLED 25 /* int sig, char *name */
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#define ERR_CLOSED_STREAM 26 /* IOSTREAM * */
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#define ERR_BUSY 27 /* mutexes */
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#define ERR_PERMISSION_PROC 28 /* op, type, Definition */
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#define ERR_DDE_OP 29 /* op, error */
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#define ERR_SYNTAX 30 /* what */
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#define ERR_SHARED_OBJECT_OP 31 /* op, error */
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#define ERR_TIMEOUT 32 /* op, object */
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#define ERR_NOT_IMPLEMENTED_PROC 33 /* name, arity */
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#define ERR_FORMAT 34 /* message */
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#define ERR_FORMAT_ARG 35 /* seq, term */
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#define ERR_OCCURS_CHECK 36 /* Word, Word */
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#define ERR_CHARS_TYPE 37 /* char *, term */
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#define ERR_MUST_BE_VAR 38 /* int argn, term_t term */
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typedef struct open_query_struct {
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int open;
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int state;
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YAP_Term g;
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yamop *p, *cp;
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Int slots;
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jmp_buf env;
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struct open_query_struct *old;
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} open_query;
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#define addr_hash(V) (((CELL) (V)) >> 4 & (N_SWI_HASH-1))
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static void
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add_to_hash(Int i, ADDR key)
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{
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UInt h = addr_hash(key);
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while (SWI_ReverseHash[h].key) {
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h = (h+1)%N_SWI_HASH;
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}
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SWI_ReverseHash[h].key = key;
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SWI_ReverseHash[h].pos = i;
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}
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static atom_t
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in_hash(ADDR key)
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{
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UInt h = addr_hash(key);
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while (SWI_ReverseHash[h].key) {
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if (SWI_ReverseHash[h].key == key)
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return SWI_ReverseHash[h].pos;
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h = (h+1)%N_SWI_HASH;
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}
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return 0;
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}
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static inline atom_t
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AtomToSWIAtom(Atom at)
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{
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atom_t ats;
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if ((ats = in_hash((ADDR)at)))
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return ats;
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return (atom_t)at;
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}
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static inline Atom
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SWIAtomToAtom(atom_t at)
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{
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if ((CELL)at & 1)
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return SWI_Atoms[at>>1];
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return (Atom)at;
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}
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static inline Term
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SWIModuleToModule(module_t m)
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{
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if (m)
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return (CELL)m;
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if (CurrentModule)
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return CurrentModule;
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return USER_MODULE;
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}
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static inline functor_t
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FunctorToSWIFunctor(Functor at)
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{
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atom_t ats;
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if ((ats = in_hash((ADDR)at)))
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return (functor_t)ats;
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return (functor_t)at;
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}
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static inline Functor
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SWIFunctorToFunctor(functor_t at)
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{
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if (IsAtomTerm(at))
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return (Functor)at;
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if ((CELL)(at) & 2)
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return SWI_Functors[((CELL)at)/4];
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return (Functor)at;
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}
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extern X_API Int YAP_PLArityOfSWIFunctor(functor_t at);
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X_API Int
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YAP_PLArityOfSWIFunctor(functor_t at) {
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if (IsAtomTerm(at))
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return 0;
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if ((CELL)(at) & 2)
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return ArityOfFunctor(SWI_Functors[((CELL)at)/4]);
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return ArityOfFunctor((Functor)at);
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}
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void
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Yap_InitSWIHash(void)
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{
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int i, j;
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memset(SWI_ReverseHash, 0, N_SWI_HASH*sizeof(swi_rev_hash));
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for (i=0; i < N_SWI_ATOMS; i++) {
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add_to_hash(i*2+1, (ADDR)SWI_Atoms[i]);
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}
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for (j=0; j < N_SWI_FUNCTORS; j++) {
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add_to_hash((((CELL)(j))*4+2), (ADDR)SWI_Functors[j]);
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}
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}
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static void
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PredicateInfo(void *p, Atom* a, unsigned long int* arity, Term* m)
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{
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PredEntry *pd = (PredEntry *)p;
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if (pd->ArityOfPE) {
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*arity = pd->ArityOfPE;
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*a = NameOfFunctor(pd->FunctorOfPred);
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} else {
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*arity = 0;
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*a = (Atom)(pd->FunctorOfPred);
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}
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if (pd->ModuleOfPred)
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*m = pd->ModuleOfPred;
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else
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*m = TermProlog;
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}
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static void
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UserCPredicate(char *a, CPredicate def, unsigned long int arity, Term mod, int flags)
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{
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PredEntry *pe;
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Term cm = CurrentModule;
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/* fprintf(stderr,"doing %s:%s/%d\n", RepAtom(AtomOfTerm(mod))->StrOfAE, a,arity); */
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CurrentModule = mod;
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Yap_InitCPred(a, arity, def, UserCPredFlag);
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if (arity == 0) {
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Atom at;
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while ((at = Yap_LookupAtom(a)) == NULL) {
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if (!Yap_growheap(FALSE, 0L, NULL)) {
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Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
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return;
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}
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}
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pe = RepPredProp(PredPropByAtom(at,mod));
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} else {
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Atom at;
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Functor f;
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while ((at = Yap_LookupAtom(a)) == NULL) {
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if (!Yap_growheap(FALSE, 0L, NULL)) {
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Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
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return;
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}
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}
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f = Yap_MkFunctor(at, arity);
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pe = RepPredProp(PredPropByFunc(f,mod));
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}
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pe->PredFlags |= (CArgsPredFlag|flags);
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CurrentModule = cm;
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}
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char buffers[TMP_BUF_SIZE+BUF_SIZE*BUF_RINGS];
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static int buf_index = 0;
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static char *
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alloc_ring_buf(void)
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{
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int ret = buf_index;
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buf_index++;
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if (buf_index == BUF_RINGS)
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buf_index = 0;
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return buffers+(TMP_BUF_SIZE+ret*BUF_SIZE);
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}
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/* SWI: void PL_agc_hook(void) */
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X_API PL_agc_hook_t
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PL_agc_hook(PL_agc_hook_t entry)
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{
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return (PL_agc_hook_t)YAP_AGCRegisterHook((YAP_agc_hook)entry);
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}
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/* SWI: char* PL_atom_chars(atom_t atom)
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YAP: char* AtomName(Atom) */
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X_API char* PL_atom_chars(atom_t a) /* SAM check type */
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{
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return RepAtom(SWIAtomToAtom(a))->StrOfAE;
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}
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/* SWI: char* PL_atom_chars(atom_t atom)
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YAP: char* AtomName(Atom) */
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X_API char* PL_atom_nchars(atom_t a, size_t *len) /* SAM check type */
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{
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char *s = RepAtom(SWIAtomToAtom(a))->StrOfAE;
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*len = strlen(s);
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return s;
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}
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X_API int
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PL_chars_to_term(const char *s, term_t term) {
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YAP_Term t,error;
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if ( (t=YAP_ReadBuffer(s,&error))==0L ) {
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Yap_PutInSlot(term, error);
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return 0L;
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}
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Yap_PutInSlot(term,t);
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return 1L;
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}
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/* SWI: term_t PL_copy_term_ref(term_t from)
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YAP: NO EQUIVALENT */
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/* SAM TO DO */
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X_API term_t PL_copy_term_ref(term_t from)
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{
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return YAP_InitSlot(Yap_GetFromSlot(from));
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}
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X_API term_t PL_new_term_ref(void)
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{
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term_t to = Yap_NewSlots(1);
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return to;
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}
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X_API term_t PL_new_term_refs(int n)
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{
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term_t to = Yap_NewSlots(n);
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return to;
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}
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X_API void PL_reset_term_refs(term_t after)
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{
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term_t new = Yap_NewSlots(1);
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YAP_RecoverSlots(after-new);
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}
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/* begin PL_get_* functions =============================*/
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/* SWI: int PL_get_arg(int index, term_t t, term_t a)
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YAP: YAP_Term YAP_ArgOfTerm(int argno, YAP_Term t)*/
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X_API int PL_get_arg(int index, term_t ts, term_t a)
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{
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YAP_Term t = Yap_GetFromSlot(ts);
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if ( !YAP_IsApplTerm(t) ) {
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if (YAP_IsPairTerm(t)) {
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if (index == 1){
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Yap_PutInSlot(a,YAP_HeadOfTerm(t));
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return 1;
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} else if (index == 2) {
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Yap_PutInSlot(a,YAP_TailOfTerm(t));
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return 1;
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}
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}
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return 0;
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}
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Yap_PutInSlot(a,YAP_ArgOfTerm(index, t));
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return 1;
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}
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/* SWI: int PL_get_arg(int index, term_t t, term_t a)
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YAP: YAP_Term YAP_ArgOfTerm(int argno, YAP_Term t)*/
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X_API int _PL_get_arg(int index, term_t ts, term_t a)
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{
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YAP_Term t = Yap_GetFromSlot(ts);
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if ( !YAP_IsApplTerm(t) ) {
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if (YAP_IsPairTerm(t)) {
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if (index == 1){
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Yap_PutInSlot(a,YAP_HeadOfTerm(t));
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return 1;
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} else if (index == 2) {
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Yap_PutInSlot(a,YAP_TailOfTerm(t));
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return 1;
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}
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}
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return 0;
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}
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Yap_PutInSlot(a,YAP_ArgOfTerm(index, t));
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return 1;
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}
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/* SWI: int PL_get_atom(term_t t, YAP_Atom *a)
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YAP: YAP_Atom YAP_AtomOfTerm(Term) */
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X_API int PL_get_atom(term_t ts, atom_t *a)
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{
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YAP_Term t = Yap_GetFromSlot(ts);
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if ( !IsAtomTerm(t))
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return 0;
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*a = AtomToSWIAtom(AtomOfTerm(t));
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return 1;
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}
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/* SWI: int PL_get_atom(term_t t, YAP_Atom *a)
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YAP: YAP_Atom YAP_AtomOfTerm(Term) */
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X_API int PL_get_intptr(term_t ts, intptr_t *a)
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{
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Term t = Yap_GetFromSlot(ts);
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if ( !IsIntegerTerm(t) )
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return 0;
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*a = (intptr_t)(IntegerOfTerm(t));
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return 1;
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}
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/* SWI: int PL_get_atom_chars(term_t t, char **s)
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YAP: char* AtomName(Atom) */
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X_API int PL_get_atom_chars(term_t ts, char **a) /* SAM check type */
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{
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Term t = Yap_GetFromSlot(ts);
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if (!IsAtomTerm(t))
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return 0;
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*a = RepAtom(AtomOfTerm(t))->StrOfAE;
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return 1;
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}
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/* SWI: int PL_get_atom_chars(term_t t, char **s)
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YAP: char* AtomName(Atom) */
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X_API int PL_get_atom_nchars(term_t ts, size_t *len, char **s) /* SAM check type */
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{
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Term t = Yap_GetFromSlot(ts);
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if (!IsAtomTerm(t))
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return 0;
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*s = RepAtom(AtomOfTerm(t))->StrOfAE;
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*len = strlen(*s);
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return 1;
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}
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/*
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int PL_get_chars(term_t +t, char **s, unsigned flags) Convert the
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argument term t to a 0-terminated C-string. flags is a bitwise
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disjunction from two groups of constants. The first specifies which
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term-types should converted and the second how the argument is
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stored. Below is a specification of these constants. BUF_RING
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implies, if the data is not static (as from an atom), the data is
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copied to the next buffer from a ring of sixteen (16) buffers. This is a
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convenient way of converting multiple arguments passed to a foreign
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predicate to C-strings. If BUF_MALLOC is used, the data must be
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freed using free() when not needed any longer.
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CVT_ATOM Convert if term is an atom
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CVT_STRING Convert if term is a string
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CVT_LIST Convert if term is a list of integers between 1 and 255
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CVT_INTEGER Convert if term is an integer (using %d)
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CVT_FLOAT Convert if term is a float (using %f)
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CVT_NUMBER Convert if term is a integer or float
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CVT_ATOMIC Convert if term is atomic
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CVT_VARIABLE Convert variable to print-name
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CVT_ALL Convert if term is any of the above, except for variables
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BUF_DISCARDABLE Data must copied immediately
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BUF_RING Data is stored in a ring of buffers
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BUF_MALLOC Data is copied to a new buffer returned by malloc(3)
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*/
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static int CvtToStringTerm(Term t, char *buf, char *buf_max)
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{
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while (IsPairTerm(t)) {
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YAP_Term hd = HeadOfTerm(t);
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long int i;
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if (!IsVarTerm(hd) || !IsIntTerm(hd))
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return 0;
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i = IntOfTerm(hd);
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if (i <= 0 || i >= 255)
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return 0;
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if (!IsIntTerm(hd))
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return 0;
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*buf++ = i;
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if (buf == buf_max)
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return 0;
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t = TailOfTerm(t);
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}
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if (t != TermNil)
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return 0;
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if (buf+1 == buf_max)
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return 0;
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buf[0] = '\0';
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return 1;
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}
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char *bf, *bf_lim;
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static void
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buf_writer(int c)
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{
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if (bf == bf_lim) {
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return;
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}
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*bf++ = c;
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}
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#if !HAVE_SNPRINTF
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#define snprintf(X,Y,Z,A) sprintf(X,Z,A)
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#endif
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/* This does not understand UNICODE yet */
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static int do_yap_putc(int sno, wchar_t ch) {
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if (putc_curp < putc_cur_lim) {
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*putc_curp++ = ch;
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return TRUE;
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} else if (putc_cur_flags & BUF_MALLOC) {
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/* handle overflow by using realloc(); */
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UInt bufsize = putc_cur_lim-putc_cur_buf;
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UInt bufpos = putc_curp-putc_cur_buf;
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if (!(putc_cur_buf = realloc(putc_cur_buf, bufsize+BUF_SIZE))) {
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/* we can+t go forever */
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return FALSE;
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}
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putc_curp = putc_cur_buf+bufpos;
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putc_cur_lim = putc_cur_buf+(bufsize+BUF_SIZE);
|
|
return do_yap_putc(sno, ch);
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
X_API int PL_get_chars(term_t l, char **sp, unsigned flags)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(l);
|
|
char *tmp;
|
|
|
|
if ((flags & BUF_RING)) {
|
|
tmp = alloc_ring_buf();
|
|
} else if ((flags & BUF_MALLOC)) {
|
|
tmp = malloc(BUF_SIZE);
|
|
} else {
|
|
tmp = buffers;
|
|
}
|
|
*sp = tmp;
|
|
if (flags & (CVT_WRITE|CVT_WRITE_CANONICAL)) {
|
|
Int write_flags;
|
|
|
|
putc_cur_buf = putc_curp = tmp;
|
|
putc_cur_flags = flags;
|
|
if (flags & CVT_WRITE_CANONICAL) {
|
|
write_flags = (Quote_illegal_f|Ignore_ops_f);
|
|
} else {
|
|
write_flags = 0;
|
|
}
|
|
if ((flags & BUF_RING)) {
|
|
putc_cur_lim = tmp+(TMP_BUF_SIZE-1);
|
|
} else {
|
|
putc_cur_lim = tmp+(BUF_SIZE-1);
|
|
}
|
|
Yap_plwrite(t, do_yap_putc, write_flags, 1200);
|
|
*putc_curp = '\0';
|
|
/* may have changed due to overflows */
|
|
*sp = putc_cur_buf;
|
|
return TRUE;
|
|
}
|
|
if (IsAtomTerm(t)) {
|
|
Atom at = AtomOfTerm(t);
|
|
if (!(flags & (CVT_ATOM|CVT_ATOMIC|CVT_ALL)))
|
|
return 0;
|
|
if (IsWideAtom(at))
|
|
/* will this always work? */
|
|
snprintf(*sp,BUF_SIZE,"%ls",RepAtom(at)->WStrOfAE);
|
|
else
|
|
*sp = RepAtom(at)->StrOfAE;
|
|
return 1;
|
|
} else if (YAP_IsIntTerm(t)) {
|
|
if (!(flags & (CVT_INTEGER|CVT_NUMBER|CVT_ATOMIC|CVT_ALL)))
|
|
return 0;
|
|
#if _WIN64
|
|
snprintf(tmp,BUF_SIZE,"%I64d",YAP_IntOfTerm(t));
|
|
#else
|
|
snprintf(tmp,BUF_SIZE,"%ld",YAP_IntOfTerm(t));
|
|
#endif
|
|
} else if (YAP_IsFloatTerm(t)) {
|
|
if (!(flags & (CVT_FLOAT|CVT_ATOMIC|CVT_NUMBER|CVT_ALL)))
|
|
return 0;
|
|
snprintf(tmp,BUF_SIZE,"%f",YAP_FloatOfTerm(t));
|
|
} else if (flags & (CVT_STRING)) {
|
|
char *s = Yap_BlobStringOfTerm(t);
|
|
strncat(tmp, s, BUF_SIZE-1);
|
|
} else if (flags & CVT_LIST) {
|
|
if (CvtToStringTerm(t,tmp,tmp+BUF_SIZE) == 0)
|
|
return 0;
|
|
} else {
|
|
bf = tmp;
|
|
bf_lim = tmp+(BUF_SIZE-1);
|
|
YAP_Write(t,buf_writer,0);
|
|
if (bf == bf_lim)
|
|
return 0;
|
|
*bf = '\0';
|
|
}
|
|
if (flags & BUF_MALLOC) {
|
|
char *nbf = YAP_AllocSpaceFromYap(strlen(tmp)+1);
|
|
if (nbf == NULL)
|
|
return 0;
|
|
strncpy(nbf,tmp,BUF_SIZE);
|
|
*sp = nbf;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
X_API int PL_get_nchars(term_t l, size_t *len, char **sp, unsigned flags)
|
|
{
|
|
int out = PL_get_chars(l, sp, flags);
|
|
if (!out) return out;
|
|
if (len)
|
|
*len = strlen(*sp);
|
|
return out;
|
|
}
|
|
|
|
|
|
/* same as get_chars, but works on buffers of wide chars */
|
|
X_API int PL_get_wchars(term_t l, size_t *len, wchar_t **wsp, unsigned flags)
|
|
{
|
|
Term t = Yap_GetFromSlot(l);
|
|
|
|
if (IsVarTerm(t)) {
|
|
if (flags & CVT_EXCEPTION)
|
|
YAP_Error(0, 0L, "PL_get_wchars");
|
|
return 0;
|
|
}
|
|
if (flags & CVT_ATOM) {
|
|
if (IsAtomTerm(t)) {
|
|
Atom at = AtomOfTerm(t);
|
|
|
|
if (!(flags & (CVT_ATOM|CVT_ATOMIC|CVT_ALL)))
|
|
return 0;
|
|
if (IsWideAtom(at)) {
|
|
/* will this always work? */
|
|
*wsp = RepAtom(at)->WStrOfAE;
|
|
if (len)
|
|
*len = wcslen(RepAtom(at)->WStrOfAE);
|
|
} else {
|
|
char *sp = RepAtom(at)->StrOfAE;
|
|
size_t sz;
|
|
|
|
sz = strlen(sp);
|
|
if (len)
|
|
*len = sz;
|
|
if (flags & BUF_MALLOC) {
|
|
int i;
|
|
wchar_t *nbf = (wchar_t *)YAP_AllocSpaceFromYap((sz+1)*sizeof(wchar_t));
|
|
if (nbf == NULL) {
|
|
if (flags & CVT_EXCEPTION)
|
|
YAP_Error(0, 0L, "PL_get_wchars: lack of memory");
|
|
return 0;
|
|
}
|
|
*wsp = nbf;
|
|
for (i=0; i<= sz; i++)
|
|
*nbf++ = *sp++;
|
|
} else if (flags & BUF_DISCARDABLE) {
|
|
wchar_t *buf = (wchar_t *)buffers;
|
|
int i;
|
|
|
|
if ((sz+1)*sizeof(wchar_t) >= BUF_SIZE) {
|
|
if (flags & CVT_EXCEPTION)
|
|
YAP_Error(0, 0L, "PL_get_wchars: wcstombs");
|
|
return 0;
|
|
}
|
|
*wsp = buf;
|
|
for (i=0; i<= sz; i++)
|
|
*buf++ = *sp++;
|
|
} else {
|
|
wchar_t *tmp = (wchar_t *)alloc_ring_buf();
|
|
int i;
|
|
|
|
if ((sz+1)*sizeof(wchar_t) >= BUF_SIZE) {
|
|
if (flags & CVT_EXCEPTION)
|
|
YAP_Error(0, 0L, "PL_get_wchars: wcstombs");
|
|
return 0;
|
|
}
|
|
*wsp = tmp;
|
|
for (i=0; i<= sz; i++)
|
|
*tmp++ = *sp++;
|
|
}
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
if (flags & CVT_EXCEPTION)
|
|
YAP_Error(0, 0L, "PL_get_wchars");
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* SWI: int PL_get_functor(term_t t, functor_t *f)
|
|
YAP: YAP_Functor YAP_FunctorOfTerm(Term) */
|
|
X_API int PL_get_functor(term_t ts, functor_t *f)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
if ( IsAtomTerm(t)) {
|
|
*f = t;
|
|
} else {
|
|
*f = FunctorToSWIFunctor(FunctorOfTerm(t));
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* SWI: int PL_get_float(term_t t, double *f)
|
|
YAP: double YAP_FloatOfTerm(Term) */
|
|
X_API int PL_get_float(term_t ts, double *f) /* SAM type check*/
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if ( !YAP_IsFloatTerm(t))
|
|
return 0;
|
|
*f = YAP_FloatOfTerm(t);
|
|
return 1;
|
|
}
|
|
|
|
X_API int PL_get_head(term_t ts, term_t h)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsPairTerm(t) ) {
|
|
return 0;
|
|
}
|
|
Yap_PutInSlot(h,YAP_HeadOfTerm(t));
|
|
return 1;
|
|
}
|
|
|
|
X_API int PL_get_string(term_t t, char **s, size_t *len)
|
|
{
|
|
return PL_get_string_chars(t, s, len);
|
|
}
|
|
|
|
X_API int PL_get_string_chars(term_t t, char **s, size_t *len)
|
|
{
|
|
Term tt = Yap_GetFromSlot(t);
|
|
if (!IsBlobStringTerm(tt)) {
|
|
return 0;
|
|
}
|
|
*s = Yap_BlobStringOfTermAndLength(tt, len);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* SWI: int PL_get_integer(term_t t, int *i)
|
|
YAP: long int YAP_IntOfTerm(Term) */
|
|
X_API int PL_get_integer(term_t ts, int *i)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsIntTerm(t) )
|
|
return 0;
|
|
*i = YAP_IntOfTerm(t);
|
|
return 1;
|
|
}
|
|
|
|
/* SWI: int PL_get_bool(term_t t, int *i)
|
|
YAP: long int YAP_AtomOfTerm(Term) */
|
|
X_API int PL_get_bool(term_t ts, int *i)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
Atom at;
|
|
|
|
if (!IsAtomTerm(t) )
|
|
return 0;
|
|
at = AtomOfTerm(t);
|
|
if (at == AtomTrue) {
|
|
*i = TRUE;
|
|
return 1;
|
|
}
|
|
if (at == AtomFalse) {
|
|
*i = FALSE;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
X_API int PL_get_long(term_t ts, long *i)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsIntTerm(t) ) {
|
|
if (YAP_IsFloatTerm(t)) {
|
|
double dbl = YAP_FloatOfTerm(t);
|
|
if (dbl - (long)dbl == 0.0) {
|
|
*i = (long)dbl;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
*i = YAP_IntOfTerm(t);
|
|
return 1;
|
|
}
|
|
|
|
|
|
X_API int PL_get_int64(term_t ts, int64_t *i)
|
|
{
|
|
#if SIZE_OF_LONG_INT==8
|
|
return PL_get_long(ts, (long *)i);
|
|
#else
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsIntTerm(t) ) {
|
|
if (YAP_IsFloatTerm(t)) {
|
|
double dbl = YAP_FloatOfTerm(t);
|
|
if (dbl - (int64_t)dbl == 0.0) {
|
|
*i = (int64_t)dbl;
|
|
return 1;
|
|
}
|
|
#if USE_GMP
|
|
} else if (YAP_IsBigNumTerm(t)) {
|
|
MP_INT g;
|
|
char s[64];
|
|
YAP_BigNumOfTerm(t, (void *)&g);
|
|
if (mpz_sizeinbase(&g,2) > 64) {
|
|
return 0;
|
|
}
|
|
mpz_get_str (s, 10, &g);
|
|
#ifdef _WIN32
|
|
sscanf(s, "%I64d", (long long int *)i);
|
|
#else
|
|
sscanf(s, "%lld", (long long int *)i);
|
|
#endif
|
|
return 1;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
*i = YAP_IntOfTerm(t);
|
|
return 1;
|
|
#endif
|
|
}
|
|
|
|
|
|
#if USE_GMP
|
|
|
|
/*******************************
|
|
* GMP *
|
|
*******************************/
|
|
|
|
X_API int PL_get_mpz(term_t t, mpz_t mpz)
|
|
{
|
|
Term t0 = Yap_GetFromSlot(t);
|
|
|
|
return Yap_term_to_existing_big(t0, mpz);
|
|
}
|
|
|
|
X_API int PL_unify_mpz(term_t t, mpz_t mpz)
|
|
{
|
|
Term iterm = Yap_MkBigIntTerm(mpz);
|
|
return Yap_unify(Yap_GetFromSlot(t),iterm);
|
|
}
|
|
|
|
X_API int PL_get_mpq(term_t t, mpq_t mpz)
|
|
{
|
|
Term t0 = Yap_GetFromSlot(t);
|
|
|
|
return Yap_term_to_existing_rat(t0, mpz);
|
|
}
|
|
|
|
X_API int PL_unify_mpq(term_t t, mpq_t mpq)
|
|
{
|
|
Term iterm = Yap_MkBigRatTerm(mpq);
|
|
return Yap_unify(Yap_GetFromSlot(t),iterm);
|
|
}
|
|
|
|
#endif
|
|
|
|
X_API int PL_get_list(term_t ts, term_t h, term_t tl)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (IsVarTerm(t) || !IsPairTerm(t) ) {
|
|
return 0;
|
|
}
|
|
Yap_PutInSlot(h,HeadOfTerm(t));
|
|
Yap_PutInSlot(tl,TailOfTerm(t));
|
|
return 1;
|
|
}
|
|
|
|
X_API int PL_get_list_chars(term_t l, char **sp, unsigned flags)
|
|
{
|
|
if (flags & (CVT_ATOM|CVT_STRING|CVT_INTEGER|CVT_FLOAT|CVT_NUMBER|CVT_ATOMIC|CVT_VARIABLE|CVT_ALL))
|
|
return 0;
|
|
return PL_get_chars(l, sp, CVT_LIST|flags);
|
|
}
|
|
|
|
/* SWI: int PL_get_module(term_t t, module_t *m) */
|
|
X_API int PL_get_module(term_t ts, module_t *m)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!IsAtomTerm(t) )
|
|
return FALSE;
|
|
*m = (module_t)t;
|
|
return TRUE;
|
|
}
|
|
|
|
/* SWI: int PL_new_module(term_t t, module_t *m) */
|
|
X_API module_t PL_new_module(atom_t swiat)
|
|
{
|
|
Atom at = SWIAtomToAtom(swiat);
|
|
Term t;
|
|
|
|
WRITE_LOCK(RepAtom(at)->ARWLock);
|
|
t = Yap_Module(MkAtomTerm(at));
|
|
WRITE_UNLOCK(RepAtom(at)->ARWLock);
|
|
return (module_t)t;
|
|
}
|
|
|
|
/* SWI: int PL_get_atom(term_t t, YAP_Atom *a)
|
|
YAP: YAP_Atom YAP_AtomOfTerm(Term) */
|
|
X_API int PL_get_name_arity(term_t ts, atom_t *name, int *arity)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (IsAtomTerm(t)) {
|
|
*name = AtomToSWIAtom(AtomOfTerm(t));
|
|
*arity = 0;
|
|
return 1;
|
|
}
|
|
if (YAP_IsApplTerm(t)) {
|
|
Functor f = FunctorOfTerm(t);
|
|
*name = AtomToSWIAtom(NameOfFunctor(f));
|
|
*arity = ArityOfFunctor(f);
|
|
return 1;
|
|
}
|
|
if (YAP_IsPairTerm(t)) {
|
|
*name = AtomToSWIAtom(AtomDot);
|
|
*arity = 2;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* SWI: int PL_get_atom(term_t t, YAP_Atom *a)
|
|
YAP: YAP_Atom YAP_AtomOfTerm(Term) */
|
|
X_API int PL_get_nil(term_t ts)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
return ( t == TermNil );
|
|
}
|
|
|
|
/* SWI: int PL_get_pointer(term_t t, int *i)
|
|
YAP: NO EQUIVALENT */
|
|
/* SAM TO DO */
|
|
X_API int PL_get_pointer(term_t ts, void **i)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsIntTerm(t) )
|
|
return 0;
|
|
*i = (void *)YAP_IntOfTerm(t);
|
|
return 1;
|
|
}
|
|
|
|
X_API int PL_get_tail(term_t ts, term_t tl)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
if (!YAP_IsPairTerm(t) ) {
|
|
return 0;
|
|
}
|
|
Yap_PutInSlot(tl,YAP_TailOfTerm(t));
|
|
return 1;
|
|
}
|
|
|
|
/* end PL_get_* functions =============================*/
|
|
|
|
/* begin PL_new_* functions =============================*/
|
|
|
|
/* SWI: atom_t PL_new_atom(const char *)
|
|
YAP: YAP_Atom LookupAtom(char *) */
|
|
/* SAM should the following be used instead?
|
|
YAP_Atom FullLookupAtom(char *)
|
|
*/
|
|
X_API atom_t PL_new_atom(const char *c)
|
|
{
|
|
Atom at;
|
|
while ((at = Yap_LookupAtom((char *)c)) == NULL) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0L;
|
|
}
|
|
}
|
|
Yap_AtomIncreaseHold(at);
|
|
return AtomToSWIAtom(at);
|
|
}
|
|
|
|
X_API atom_t PL_new_atom_nchars(size_t len, const char *c)
|
|
{
|
|
Atom at;
|
|
char *pt;
|
|
if (strlen(c) > len) {
|
|
while ((pt = (char *)Yap_AllocCodeSpace(len+1)) == NULL) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0L;
|
|
}
|
|
}
|
|
strncpy(pt, c, len);
|
|
} else {
|
|
pt = (char *)c;
|
|
}
|
|
while ((at = Yap_LookupAtom(pt)) == NULL) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0L;
|
|
}
|
|
}
|
|
Yap_AtomIncreaseHold(at);
|
|
return AtomToSWIAtom(at);
|
|
}
|
|
|
|
X_API atom_t PL_new_atom_wchars(size_t len, const wchar_t *c)
|
|
{
|
|
atom_t at;
|
|
int i;
|
|
|
|
for (i=0;i<len;i++) {
|
|
if (c[i] > 255) break;
|
|
}
|
|
if (i!=len) {
|
|
Atom at0;
|
|
wchar_t *nbf;
|
|
while (!(nbf = (wchar_t *)YAP_AllocSpaceFromYap((len+1)*sizeof(wchar_t)))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0;
|
|
}
|
|
}
|
|
for (i=0;i<len;i++)
|
|
nbf[i] = c[i];
|
|
nbf[len]='\0';
|
|
while ((at0 = Yap_LookupWideAtom(nbf)) == NULL) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0L;
|
|
}
|
|
}
|
|
at = AtomToSWIAtom(at0);
|
|
YAP_FreeSpaceFromYap(nbf);
|
|
} else {
|
|
char *nbf;
|
|
Atom at0;
|
|
|
|
while (!(nbf = (char *)YAP_AllocSpaceFromYap((len+1)*sizeof(char)))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0;
|
|
}
|
|
}
|
|
for (i=0;i<len;i++)
|
|
nbf[i] = c[i];
|
|
nbf[len]='\0';
|
|
while (!(at0 = Yap_LookupAtom(nbf))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return 0;
|
|
}
|
|
}
|
|
at = AtomToSWIAtom(at0);
|
|
YAP_FreeSpaceFromYap(nbf);
|
|
}
|
|
return at;
|
|
}
|
|
|
|
X_API wchar_t *PL_atom_wchars(atom_t name, size_t *sp)
|
|
{
|
|
Atom at = SWIAtomToAtom(name);
|
|
if (!IsWideAtom(at))
|
|
return NULL;
|
|
*sp = wcslen(RepAtom(at)->WStrOfAE);
|
|
return RepAtom(at)->WStrOfAE;
|
|
}
|
|
|
|
X_API functor_t PL_new_functor(atom_t name, int arity)
|
|
{
|
|
functor_t f;
|
|
Atom at = SWIAtomToAtom(name);
|
|
if (arity == 0) {
|
|
f = FunctorToSWIFunctor((Functor)MkAtomTerm(at));
|
|
} else {
|
|
f = FunctorToSWIFunctor(Yap_MkFunctor(at,arity));
|
|
}
|
|
return f;
|
|
}
|
|
|
|
X_API atom_t PL_functor_name(functor_t f)
|
|
{
|
|
if (IsAtomTerm(f)) {
|
|
return AtomToSWIAtom(AtomOfTerm((Term)SWIFunctorToFunctor(f)));
|
|
} else {
|
|
return AtomToSWIAtom(NameOfFunctor(SWIFunctorToFunctor(f)));
|
|
}
|
|
}
|
|
|
|
X_API int PL_functor_arity(functor_t f)
|
|
{
|
|
if (IsAtomTerm(f)) {
|
|
return 0;
|
|
} else {
|
|
return ArityOfFunctor(SWIFunctorToFunctor(f));
|
|
}
|
|
}
|
|
|
|
/* end PL_new_* functions =============================*/
|
|
|
|
/* begin PL_put_* functions =============================*/
|
|
|
|
X_API int PL_cons_functor(term_t d, functor_t f,...)
|
|
{
|
|
va_list ap;
|
|
int arity, i;
|
|
Term *tmp = (Term *)buffers;
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
|
|
if (IsAtomTerm((Term)ff)) {
|
|
Yap_PutInSlot(d, (YAP_Term)f);
|
|
return TRUE;
|
|
}
|
|
arity = ArityOfFunctor(ff);
|
|
if (arity > TMP_BUF_SIZE/sizeof(YAP_CELL)) {
|
|
fprintf(stderr,"PL_cons_functor: arity too large (%d)\n", arity);
|
|
return FALSE;
|
|
}
|
|
va_start (ap, f);
|
|
for (i = 0; i < arity; i++) {
|
|
tmp[i] = Yap_GetFromSlot(va_arg(ap, term_t));
|
|
}
|
|
va_end (ap);
|
|
if (arity == 2 && ff == FunctorDot)
|
|
Yap_PutInSlot(d,MkPairTerm(tmp[0],tmp[1]));
|
|
else
|
|
Yap_PutInSlot(d,Yap_MkApplTerm(ff,arity,tmp));
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_cons_functor_v(term_t d, functor_t f,term_t a0)
|
|
{
|
|
int arity;
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
|
|
if (IsAtomTerm((Term)ff)) {
|
|
Yap_PutInSlot(d,(Term)ff);
|
|
return TRUE;
|
|
}
|
|
arity = ArityOfFunctor(ff);
|
|
if (arity == 2 && ff == FunctorDot)
|
|
Yap_PutInSlot(d,MkPairTerm(Yap_GetFromSlot(a0),Yap_GetFromSlot(a0+1)));
|
|
else
|
|
Yap_PutInSlot(d,Yap_MkApplTerm(ff,arity,Yap_AddressFromSlot(a0)));
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_cons_list(term_t d, term_t h, term_t t)
|
|
{
|
|
Yap_PutInSlot(d,YAP_MkPairTerm(Yap_GetFromSlot(h),Yap_GetFromSlot(t)));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_atom(term_t t, atom_t a)
|
|
{
|
|
Yap_PutInSlot(t,MkAtomTerm(SWIAtomToAtom(a)));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_atom_chars(term_t t, const char *s)
|
|
{
|
|
Atom at;
|
|
while (!(at = Yap_LookupAtom((char *)s))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
Yap_PutInSlot(t,MkAtomTerm(at));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_atom_nchars(term_t t, size_t len, const char *s)
|
|
{
|
|
Atom at;
|
|
char *buf;
|
|
|
|
if (strlen(s) > len) {
|
|
while (!(buf = (char *)Yap_AllocCodeSpace(len+1))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
strncpy(buf, s, len);
|
|
} else {
|
|
buf = (char *)s;
|
|
}
|
|
while (!(at = Yap_LookupAtom(buf))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
Yap_PutInSlot(t,MkAtomTerm(at));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_float(term_t t, double fl)
|
|
{
|
|
Yap_PutInSlot(t,YAP_MkFloatTerm(fl));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_functor(term_t t, functor_t f)
|
|
{
|
|
long int arity;
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
|
|
if (IsAtomTerm((Term)ff)) {
|
|
Yap_PutInSlot(t,(Term)ff);
|
|
} else {
|
|
arity = ArityOfFunctor(ff);
|
|
if (arity == 2 && ff == FunctorDot)
|
|
Yap_PutInSlot(t,YAP_MkNewPairTerm());
|
|
else
|
|
Yap_PutInSlot(t,YAP_MkNewApplTerm((YAP_Functor)ff,arity));
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_integer(term_t t, long n)
|
|
{
|
|
Yap_PutInSlot(t,YAP_MkIntTerm(n));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_int64(term_t t, int64_t n)
|
|
{
|
|
#if USE_GMP
|
|
char s[64];
|
|
MP_INT rop;
|
|
|
|
#ifdef _WIN32
|
|
snprintf(s, 64, "%I64d", (long long int)n);
|
|
#elif HAVE_SNPRINTF
|
|
snprintf(s, 64, "%lld", (long long int)n);
|
|
#else
|
|
sprintf(s, "%lld", (long long int)n);
|
|
#endif
|
|
mpz_init_set_str (&rop, s, 10);
|
|
Yap_PutInSlot(t,YAP_MkBigNumTerm((void *)&rop));
|
|
return TRUE;
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
X_API int PL_put_list(term_t t)
|
|
{
|
|
Yap_PutInSlot(t,YAP_MkNewPairTerm());
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_list_chars(term_t t, const char *s)
|
|
{
|
|
Yap_PutInSlot(t,YAP_BufferToString((char *)s));
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
X_API void PL_put_nil(term_t t)
|
|
{
|
|
Yap_PutInSlot(t,TermNil);
|
|
}
|
|
|
|
/* SWI: void PL_put_pointer(term_t -t, void *ptr)
|
|
YAP: NO EQUIVALENT */
|
|
/* SAM TO DO */
|
|
X_API int PL_put_pointer(term_t t, void *ptr)
|
|
{
|
|
YAP_Term tptr = YAP_MkIntTerm((YAP_Int)ptr);
|
|
Yap_PutInSlot(t,tptr);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_string_nchars(term_t t, size_t len, const char *chars)
|
|
{
|
|
Term tt;
|
|
|
|
if ((tt = Yap_MkBlobStringTerm(chars, len)) == TermNil)
|
|
return FALSE;
|
|
Yap_PutInSlot(t,tt);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_term(term_t d, term_t s)
|
|
{
|
|
Yap_PutInSlot(d,Yap_GetFromSlot(s));
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int PL_put_variable(term_t t)
|
|
{
|
|
Yap_PutInSlot(t,MkVarTerm());
|
|
return TRUE;
|
|
}
|
|
|
|
/* end PL_put_* functions =============================*/
|
|
|
|
/* SWI: int PL_raise_exception(term_t exception)
|
|
YAP: NO EQUIVALENT */
|
|
/* SAM TO DO */
|
|
|
|
X_API int PL_raise_exception(term_t exception)
|
|
{
|
|
YAP_Throw(Yap_GetFromSlot(exception));
|
|
return 0;
|
|
}
|
|
|
|
X_API int PL_throw(term_t exception)
|
|
{
|
|
YAP_Throw(Yap_GetFromSlot(exception));
|
|
longjmp(execution->env, 0);
|
|
return 0;
|
|
}
|
|
|
|
X_API void PL_fatal_error(const char *msg)
|
|
{
|
|
fprintf(stderr,"[ FATAL ERROR: %s ]\n",msg);
|
|
Yap_exit(1);
|
|
}
|
|
|
|
static char *
|
|
OsError(void)
|
|
{
|
|
#ifdef HAVE_STRERROR
|
|
#ifdef __WINDOWS__
|
|
return NULL;
|
|
#else
|
|
return strerror(errno);
|
|
#endif
|
|
#else /*HAVE_STRERROR*/
|
|
static char errmsg[64];
|
|
|
|
#ifdef __unix__
|
|
extern int sys_nerr;
|
|
#if !EMX
|
|
extern char *sys_errlist[];
|
|
#endif
|
|
extern int errno;
|
|
|
|
if ( errno < sys_nerr )
|
|
return sys_errlist[errno];
|
|
#endif
|
|
|
|
Ssprintf(errmsg, "Unknown Error (%d)", errno);
|
|
return errmsg;
|
|
#endif /*HAVE_STRERROR*/
|
|
}
|
|
|
|
X_API int PL_warning(const char *msg, ...) {
|
|
va_list args;
|
|
va_start(args, msg);
|
|
// just print the warning message and return?
|
|
fprintf(stderr,"[Warning:");
|
|
fprintf(stderr,msg,args);
|
|
fprintf(stderr,"]\n");
|
|
va_end(args);
|
|
PL_fail;
|
|
}
|
|
|
|
X_API int PL_error(const char *pred, int arity, const char *msg, int id, ...)
|
|
{
|
|
term_t formal, swi, predterm, msgterm, except;
|
|
va_list args;
|
|
|
|
formal = PL_new_term_ref();
|
|
swi = PL_new_term_ref();
|
|
predterm = PL_new_term_ref();
|
|
msgterm = PL_new_term_ref();
|
|
except = PL_new_term_ref();
|
|
|
|
if ( msg == ((char *)(-1)) )
|
|
{ if ( errno == EPLEXCEPTION )
|
|
return FALSE;
|
|
msg = OsError();
|
|
}
|
|
|
|
/* This would really require having pl-error.c, but we'll make do so as */
|
|
va_start(args, id);
|
|
switch(id) {
|
|
case ERR_INSTANTIATION:
|
|
err_instantiation:
|
|
PL_unify_atom(formal, ATOM_instantiation_error);
|
|
break;
|
|
case ERR_TYPE: /* ERR_INSTANTIATION if var(actual) */
|
|
{ atom_t expected = va_arg(args, atom_t);
|
|
term_t actual = va_arg(args, term_t);
|
|
|
|
if ( PL_is_variable(actual) && expected != ATOM_variable )
|
|
goto err_instantiation;
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_type_error2,
|
|
PL_ATOM, expected,
|
|
PL_TERM, actual);
|
|
break;
|
|
}
|
|
case ERR_DOMAIN: /* ERR_INSTANTIATION if var(arg) */
|
|
{ atom_t domain = va_arg(args, atom_t);
|
|
term_t arg = va_arg(args, term_t);
|
|
|
|
if ( PL_is_variable(arg) )
|
|
goto err_instantiation;
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_domain_error2,
|
|
PL_ATOM, domain,
|
|
PL_TERM, arg);
|
|
break;
|
|
}
|
|
case ERR_REPRESENTATION:
|
|
{ atom_t what = va_arg(args, atom_t);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_representation_error1,
|
|
PL_ATOM, what);
|
|
break;
|
|
}
|
|
case ERR_NOT_IMPLEMENTED_PROC:
|
|
{ const char *name = va_arg(args, const char *);
|
|
int arity = va_arg(args, int);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_not_implemented2,
|
|
PL_ATOM, ATOM_procedure,
|
|
PL_FUNCTOR, FUNCTOR_divide2,
|
|
PL_CHARS, name,
|
|
PL_INT, arity);
|
|
break;
|
|
}
|
|
case ERR_EXISTENCE:
|
|
{ atom_t type = va_arg(args, atom_t);
|
|
term_t obj = va_arg(args, term_t);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_existence_error2,
|
|
PL_ATOM, type,
|
|
PL_TERM, obj);
|
|
|
|
break;
|
|
}
|
|
case ERR_PERMISSION:
|
|
{ atom_t type = va_arg(args, atom_t);
|
|
atom_t op = va_arg(args, atom_t);
|
|
term_t obj = va_arg(args, term_t);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_permission_error3,
|
|
PL_ATOM, type,
|
|
PL_ATOM, op,
|
|
PL_TERM, obj);
|
|
|
|
break;
|
|
}
|
|
case ERR_SYSCALL:
|
|
{ const char *op = va_arg(args, const char *);
|
|
|
|
if ( !msg )
|
|
msg = op;
|
|
|
|
switch(errno)
|
|
{ case ENOMEM:
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_resource_error1,
|
|
PL_ATOM, ATOM_no_memory);
|
|
break;
|
|
default:
|
|
PL_unify_atom(formal, ATOM_system_error);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case ERR_TIMEOUT:
|
|
{ atom_t op = va_arg(args, atom_t);
|
|
term_t obj = va_arg(args, term_t);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_timeout_error2,
|
|
PL_ATOM, op,
|
|
PL_TERM, obj);
|
|
|
|
break;
|
|
}
|
|
case ERR_FILE_OPERATION:
|
|
{ atom_t action = va_arg(args, atom_t);
|
|
atom_t type = va_arg(args, atom_t);
|
|
term_t file = va_arg(args, term_t);
|
|
|
|
switch(errno)
|
|
{ case EACCES:
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_permission_error3,
|
|
PL_ATOM, action,
|
|
PL_ATOM, type,
|
|
PL_TERM, file);
|
|
break;
|
|
case EMFILE:
|
|
case ENFILE:
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_resource_error1,
|
|
PL_ATOM, ATOM_max_files);
|
|
break;
|
|
#ifdef EPIPE
|
|
case EPIPE:
|
|
if ( !msg )
|
|
msg = "Broken pipe";
|
|
/*FALLTHROUGH*/
|
|
#endif
|
|
default: /* what about the other cases? */
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_existence_error2,
|
|
PL_ATOM, type,
|
|
PL_TERM, file);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case ERR_NOMEM:
|
|
{ PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_resource_error1,
|
|
PL_ATOM, ATOM_no_memory);
|
|
|
|
break;
|
|
}
|
|
case ERR_EVALUATION:
|
|
{ atom_t what = va_arg(args, atom_t);
|
|
|
|
PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_evaluation_error1,
|
|
PL_ATOM, what);
|
|
break;
|
|
}
|
|
case ERR_STREAM_OP:
|
|
{ atom_t action = va_arg(args, atom_t);
|
|
term_t stream = va_arg(args, term_t);
|
|
int rc;
|
|
|
|
rc = PL_unify_term(formal,
|
|
PL_FUNCTOR, FUNCTOR_io_error2,
|
|
PL_ATOM, action,
|
|
PL_TERM, stream);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
fprintf(stderr, "unimplemented SWI error %d\n",id);
|
|
goto err_instantiation;
|
|
}
|
|
va_end(args);
|
|
if ( pred )
|
|
{ PL_unify_term(predterm,
|
|
PL_FUNCTOR, FUNCTOR_divide2,
|
|
PL_CHARS, pred,
|
|
PL_INT, arity);
|
|
}
|
|
if ( msg )
|
|
{
|
|
PL_put_atom_chars(msgterm, msg);
|
|
}
|
|
PL_unify_term(swi,
|
|
PL_FUNCTOR, FUNCTOR_context2,
|
|
PL_TERM, predterm,
|
|
PL_TERM, msgterm);
|
|
PL_unify_term(except,
|
|
PL_FUNCTOR, FUNCTOR_error2,
|
|
PL_TERM, formal,
|
|
PL_TERM, swi);
|
|
return PL_raise_exception(except);
|
|
}
|
|
|
|
/* begin PL_unify_* functions =============================*/
|
|
|
|
X_API int PL_unify(term_t t1, term_t t2)
|
|
{
|
|
return YAP_Unify(Yap_GetFromSlot(t1),Yap_GetFromSlot(t2));
|
|
}
|
|
|
|
/* SWI: int PL_unify_atom(term_t ?t, atom *at)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_atom(term_t t, atom_t at)
|
|
{
|
|
YAP_Term cterm = MkAtomTerm(SWIAtomToAtom(at));
|
|
return YAP_Unify(Yap_GetFromSlot(t),cterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_atom_chars(term_t ?t, const char *chars)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_atom_chars(term_t t, const char *s)
|
|
{
|
|
Atom catom;
|
|
Term cterm;
|
|
while (!(catom = Yap_LookupAtom((char *)s))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
cterm = MkAtomTerm(catom);
|
|
return Yap_unify(Yap_GetFromSlot(t),cterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_atom_chars(term_t ?t, const char *chars)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_atom_nchars(term_t t, size_t len, const char *s)
|
|
{
|
|
Atom catom;
|
|
YAP_Term cterm;
|
|
char *buf = (char *)YAP_AllocSpaceFromYap(len+1);
|
|
|
|
if (!buf)
|
|
return FALSE;
|
|
strncpy(buf, s, len);
|
|
buf[len] = '\0';
|
|
while (!(catom = Yap_LookupAtom(buf))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
free(buf);
|
|
cterm = MkAtomTerm(catom);
|
|
return YAP_Unify(Yap_GetFromSlot(t),cterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_float(term_t ?t, double f)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_float(term_t t, double f)
|
|
{
|
|
YAP_Term fterm = YAP_MkFloatTerm(f);
|
|
return YAP_Unify(Yap_GetFromSlot(t),fterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_integer(term_t ?t, long n)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_integer(term_t t, long n)
|
|
{
|
|
Term iterm = MkIntegerTerm(n);
|
|
return Yap_unify(Yap_GetFromSlot(t),iterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_integer(term_t ?t, long n)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_functor(term_t t, functor_t f)
|
|
{
|
|
YAP_Term tt = Yap_GetFromSlot(t);
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
if (YAP_IsVarTerm(tt))
|
|
return YAP_Unify(tt, YAP_MkNewApplTerm((YAP_Functor)ff,YAP_ArityOfFunctor((YAP_Functor)f)));
|
|
if (YAP_IsPairTerm(tt))
|
|
return ff == FunctorDot;
|
|
if (!YAP_IsApplTerm(tt))
|
|
return FALSE;
|
|
return ff == FunctorOfTerm(tt);
|
|
}
|
|
|
|
/* SWI: int PL_unify_integer(term_t ?t, long n)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_int64(term_t t, int64_t n)
|
|
{
|
|
#if SIZEOF_INT_P==8
|
|
Term iterm = MkIntegerTerm(n);
|
|
return Yap_unify(Yap_GetFromSlot(t),iterm);
|
|
#elif USE_GMP
|
|
YAP_Term iterm;
|
|
char s[64];
|
|
MP_INT rop;
|
|
|
|
#ifdef _WIN32
|
|
snprintf(s, 64, "%I64d", (long long int)n);
|
|
#elif HAVE_SNPRINTF
|
|
snprintf(s, 64, "%lld", (long long int)n);
|
|
#else
|
|
sprintf(s, "%lld", (long long int)n);
|
|
#endif
|
|
mpz_init_set_str (&rop, s, 10);
|
|
iterm = YAP_MkBigNumTerm((void *)&rop);
|
|
return YAP_Unify(Yap_GetFromSlot(t),iterm);
|
|
#else
|
|
fprintf(stderr,"Error: please install GM\n");
|
|
return FALSE;
|
|
#endif
|
|
|
|
}
|
|
|
|
/* SWI: int PL_unify_list(term_t ?t, term_t +h, term_t -t)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_list(term_t tt, term_t h, term_t tail)
|
|
{
|
|
Term t;
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
t = Deref(Yap_GetFromSlot(tt));
|
|
if (IsVarTerm(t)) {
|
|
Term pairterm = Yap_MkNewPairTerm();
|
|
Yap_unify(t, pairterm);
|
|
/* avoid calling deref */
|
|
t = pairterm;
|
|
} else if (!IsPairTerm(t)) {
|
|
return FALSE;
|
|
}
|
|
Yap_PutInSlot(h,HeadOfTerm(t));
|
|
Yap_PutInSlot(tail,TailOfTerm(t));
|
|
return TRUE;
|
|
}
|
|
|
|
/* SWI: int PL_unify_list(term_t ?t, term_t +h, term_t -t)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_arg(int index, term_t tt, term_t arg)
|
|
{
|
|
Term t = Deref(Yap_GetFromSlot(tt)), to;
|
|
if (index < 0)
|
|
return FALSE;
|
|
if (IsVarTerm(t) || IsAtomOrIntTerm(t)) {
|
|
return FALSE;
|
|
} else if (IsPairTerm(t)) {
|
|
if (index == 1)
|
|
to = HeadOfTerm(t);
|
|
else if (index == 2)
|
|
to = TailOfTerm(t);
|
|
else
|
|
return FALSE;
|
|
} else {
|
|
Functor f = FunctorOfTerm(t);
|
|
if (IsExtensionFunctor(f))
|
|
return FALSE;
|
|
if (index > ArityOfFunctor(f))
|
|
return FALSE;
|
|
to = ArgOfTerm(index, t);
|
|
}
|
|
return Yap_unify(Yap_GetFromSlot(t),to);
|
|
}
|
|
|
|
/* SWI: int PL_unify_list(term_t ?t, term_t +h, term_t -t)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_list_chars(term_t t, const char *chars)
|
|
{
|
|
YAP_Term chterm;
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
chterm = YAP_BufferToString((char *)chars);
|
|
return YAP_Unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_list(term_t ?t, term_t +h, term_t -t)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_list_ncodes(term_t t, size_t len, const char *chars)
|
|
{
|
|
Term chterm;
|
|
if (Unsigned(H) > Unsigned(ASP+len*2)-CreepFlag) {
|
|
if (!Yap_gc(len*2*sizeof(CELL), ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
chterm = Yap_NStringToList((char *)chars, len);
|
|
return Yap_unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
X_API int
|
|
PL_unify_list_codes(term_t l, const char *chars)
|
|
{ return PL_unify_list_ncodes(l, strlen(chars), chars);
|
|
}
|
|
|
|
/* SWI: int PL_unify_nil(term_t ?l)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_nil(term_t l)
|
|
{
|
|
YAP_Term nilterm = TermNil;
|
|
return YAP_Unify(Yap_GetFromSlot(l), nilterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_pointer(term_t ?t, void *ptr)
|
|
YAP: NO EQUIVALENT */
|
|
/* SAM TO DO */
|
|
X_API int PL_unify_pointer(term_t t, void *ptr)
|
|
{
|
|
YAP_Term ptrterm = YAP_MkIntTerm((YAP_Int)ptr);
|
|
return YAP_Unify(Yap_GetFromSlot(t), ptrterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_list(term_t ?t, term_t +h, term_t -t)
|
|
YAP long int unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_string_chars(term_t t, const char *chars)
|
|
{
|
|
YAP_Term chterm;
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
chterm = YAP_BufferToString((char *)chars);
|
|
return YAP_Unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
X_API int PL_unify_string_nchars(term_t t, size_t len, const char *chars)
|
|
{
|
|
YAP_Term chterm;
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
chterm = YAP_NBufferToString((char *)chars, len);
|
|
return YAP_Unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_wchars(term_t ?t, int type, size_t len,, const pl_wchar_t *s)
|
|
*/
|
|
X_API int PL_unify_wchars(term_t t, int type, size_t len, const pl_wchar_t *chars)
|
|
{
|
|
YAP_Term chterm;
|
|
|
|
if (len == (size_t)-1)
|
|
len = wcslen(chars);
|
|
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
switch (type) {
|
|
case PL_ATOM:
|
|
{
|
|
Atom at;
|
|
while ((at = Yap_LookupMaybeWideAtomWithLength((wchar_t *)chars, len)) == NULL) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
chterm = MkAtomTerm(at);
|
|
}
|
|
break;
|
|
case PL_STRING:
|
|
chterm = Yap_MkBlobWideStringTerm(chars, len);
|
|
break;
|
|
case PL_CODE_LIST:
|
|
chterm = YAP_NWideBufferToString(chars, len);
|
|
break;
|
|
case PL_CHAR_LIST:
|
|
chterm = YAP_NWideBufferToAtomList(chars, len);
|
|
break;
|
|
default:
|
|
/* should give error?? */
|
|
return FALSE;
|
|
}
|
|
return YAP_Unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
/* SWI: int PL_unify_wchars(term_t ?t, int type, size_t len,, const pl_wchar_t *s)
|
|
*/
|
|
X_API int PL_unify_wchars_diff(term_t t, term_t tail, int type, size_t len, const pl_wchar_t *chars)
|
|
{
|
|
YAP_Term chterm;
|
|
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
if (len == (size_t)-1)
|
|
len = wcslen(chars);
|
|
|
|
switch (type) {
|
|
case PL_CODE_LIST:
|
|
chterm = YAP_NWideBufferToDiffList(chars, Yap_GetFromSlot(tail), len);
|
|
break;
|
|
case PL_CHAR_LIST:
|
|
chterm = YAP_NWideBufferToAtomDiffList(chars, Yap_GetFromSlot(tail), len);
|
|
break;
|
|
default:
|
|
/* should give error?? */
|
|
return FALSE;
|
|
}
|
|
return YAP_Unify(Yap_GetFromSlot(t), chterm);
|
|
}
|
|
|
|
typedef struct {
|
|
int type;
|
|
union {
|
|
functor_t f;
|
|
term_t t;
|
|
atom_t a;
|
|
long l;
|
|
int i;
|
|
double dbl;
|
|
char *s;
|
|
struct {
|
|
size_t n;
|
|
char *s;
|
|
} ns;
|
|
struct {
|
|
size_t n;
|
|
wchar_t *w;
|
|
} nw;
|
|
void *p;
|
|
wchar_t *w;
|
|
} arg;
|
|
} arg_types;
|
|
|
|
static Atom
|
|
LookupMaxAtom(size_t n, char *s)
|
|
{
|
|
Atom catom;
|
|
char *buf = (char *)Yap_AllocCodeSpace(n+1);
|
|
|
|
if (!buf)
|
|
return FALSE;
|
|
strncpy(buf, s, n);
|
|
buf[n] = '\0';
|
|
while (!(catom = Yap_LookupAtom(buf))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return NULL;
|
|
}
|
|
}
|
|
Yap_FreeCodeSpace(buf);
|
|
return catom;
|
|
}
|
|
|
|
static Atom
|
|
LookupMaxWideAtom(size_t n, wchar_t *s)
|
|
{
|
|
Atom catom;
|
|
wchar_t *buf = (wchar_t *)Yap_AllocCodeSpace((n+1)*sizeof(wchar_t));
|
|
|
|
if (!buf)
|
|
return FALSE;
|
|
wcsncpy(buf, s, n);
|
|
buf[n] = '\0';
|
|
while (!(catom = Yap_LookupMaybeWideAtom(buf))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return NULL;
|
|
}
|
|
}
|
|
Yap_FreeAtomSpace((ADDR)buf);
|
|
return catom;
|
|
}
|
|
|
|
static YAP_Term
|
|
MkBoolTerm(int b)
|
|
{
|
|
if (b)
|
|
return MkAtomTerm(AtomTrue);
|
|
else
|
|
return MkAtomTerm(AtomFalse);
|
|
}
|
|
|
|
#define MAX_DEPTH 64
|
|
|
|
typedef struct {
|
|
int nels;
|
|
CELL *ptr;
|
|
} stack_el;
|
|
|
|
/* SWI: int PL_unify_term(term_t ?t1, term_t ?t2)
|
|
YAP long int YAP_Unify(YAP_Term* a, Term* b) */
|
|
X_API int PL_unify_term(term_t l,...)
|
|
{
|
|
va_list ap;
|
|
int type;
|
|
int nels = 1;
|
|
int depth = 1;
|
|
Term a[1], *pt;
|
|
stack_el stack[MAX_DEPTH];
|
|
|
|
|
|
if (Unsigned(H) > Unsigned(ASP)-CreepFlag) {
|
|
if (!Yap_gc(0, ENV, CP)) {
|
|
return FALSE;
|
|
}
|
|
}
|
|
va_start (ap, l);
|
|
pt = a;
|
|
while (depth > 0) {
|
|
while (nels > 0) {
|
|
type = va_arg(ap, int);
|
|
nels--;
|
|
switch(type) {
|
|
case PL_VARIABLE:
|
|
*pt++ = MkVarTerm();
|
|
break;
|
|
case PL_BOOL:
|
|
*pt++ = MkBoolTerm(va_arg(ap, int));
|
|
break;
|
|
case PL_ATOM:
|
|
*pt++ = MkAtomTerm(SWIAtomToAtom(va_arg(ap, atom_t)));
|
|
break;
|
|
case PL_INTEGER:
|
|
*pt++ = MkIntegerTerm(va_arg(ap, long));
|
|
break;
|
|
case PL_SHORT:
|
|
*pt++ = MkIntegerTerm(va_arg(ap, int));
|
|
break;
|
|
case PL_LONG:
|
|
*pt++ = MkIntegerTerm(va_arg(ap, long));
|
|
break;
|
|
case PL_INT:
|
|
*pt++ = MkIntegerTerm(va_arg(ap, int));
|
|
break;
|
|
case PL_FLOAT:
|
|
*pt++ = MkFloatTerm(va_arg(ap, double));
|
|
break;
|
|
case PL_STRING:
|
|
*pt++ = Yap_MkBlobStringTerm(va_arg(ap, char *), -1);
|
|
break;
|
|
case PL_CHARS:
|
|
{
|
|
Atom at;
|
|
char *s = va_arg(ap, char *);
|
|
while (!(at = Yap_LookupAtom(s))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
*pt++ = MkAtomTerm(at);
|
|
}
|
|
break;
|
|
case PL_NCHARS:
|
|
{
|
|
size_t sz = va_arg(ap, size_t);
|
|
*pt++ = MkAtomTerm(LookupMaxAtom(sz,va_arg(ap, char *)));
|
|
}
|
|
break;
|
|
case PL_NWCHARS:
|
|
{
|
|
size_t sz = va_arg(ap, size_t);
|
|
wchar_t * arg = va_arg(ap, wchar_t *);
|
|
*pt++ = MkAtomTerm(LookupMaxWideAtom(sz,arg));
|
|
}
|
|
break;
|
|
case PL_TERM:
|
|
{
|
|
Term t = Yap_GetFromSlot(va_arg(ap, size_t));
|
|
if (IsVarTerm(t) && VarOfTerm(t) >= ASP && VarOfTerm(t) < LCL0) {
|
|
Yap_unify(*pt++, t);
|
|
}
|
|
else {
|
|
*pt++ = t;
|
|
}
|
|
}
|
|
break;
|
|
case PL_POINTER:
|
|
*pt++ = MkIntegerTerm((Int)va_arg(ap, void *));
|
|
break;
|
|
case PL_INT64:
|
|
#if SIZE_OF_LONG_INT==8
|
|
*pt++ = MkIntegerTerm((Int)va_arg(ap, long int));
|
|
#elif USE_GMP
|
|
{
|
|
char s[64];
|
|
MP_INT rop;
|
|
|
|
#ifdef _WIN32
|
|
snprintf(s, 64, "%I64d", va_arg(ap, long long int));
|
|
#elif HAVE_SNPRINTF
|
|
snprintf(s, 64, "%lld", va_arg(ap, long long int));
|
|
#else
|
|
sprintf(s, "%lld", va_arg(ap, long long int));
|
|
#endif
|
|
mpz_init_set_str (&rop, s, 10);
|
|
*pt++ = YAP_MkBigNumTerm((void *)&rop);
|
|
}
|
|
#else
|
|
fprintf(stderr, "PL_unify_term: PL_int64 not supported\n");
|
|
exit(1);
|
|
#endif
|
|
break;
|
|
case PL_FUNCTOR:
|
|
{
|
|
functor_t f = va_arg(ap, functor_t);
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
UInt arity = ArityOfFunctor(ff);
|
|
|
|
if (!arity) {
|
|
*pt++ = MkAtomTerm((Atom)f);
|
|
} else {
|
|
Term t = Yap_MkNewApplTerm(ff, arity);
|
|
if (nels) {
|
|
if (depth == MAX_DEPTH) {
|
|
fprintf(stderr,"ERROR: very deep term in PL_unify_term, change MAX_DEPTH from %d\n", MAX_DEPTH);
|
|
return FALSE;
|
|
}
|
|
stack[depth-1].nels = nels;
|
|
stack[depth-1].ptr = pt+1;
|
|
depth++;
|
|
}
|
|
*pt = t;
|
|
if (ff == FunctorDot)
|
|
pt = RepPair(t);
|
|
else
|
|
pt = RepAppl(t)+1;
|
|
nels = arity;
|
|
}
|
|
}
|
|
break;
|
|
case PL_FUNCTOR_CHARS:
|
|
{
|
|
char *fname = va_arg(ap, char *);
|
|
size_t arity = va_arg(ap, size_t);
|
|
|
|
if (!arity) {
|
|
Atom at;
|
|
|
|
while (!(at = Yap_LookupAtom(fname))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
*pt++ = MkAtomTerm(at);
|
|
} else {
|
|
Atom at;
|
|
Functor ff;
|
|
Term t;
|
|
|
|
while (!(at = Yap_LookupAtom(fname))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return FALSE;
|
|
}
|
|
}
|
|
ff = Yap_MkFunctor(at,arity);
|
|
t = Yap_MkNewApplTerm(ff, arity);
|
|
if (nels) {
|
|
if (depth == MAX_DEPTH) {
|
|
fprintf(stderr,"very deep term in PL_unify_term\n");
|
|
return FALSE;
|
|
}
|
|
stack[depth-1].nels = nels;
|
|
stack[depth-1].ptr = pt+1;
|
|
depth++;
|
|
}
|
|
*pt = t;
|
|
if (ff == FunctorDot)
|
|
pt = RepPair(t);
|
|
else
|
|
pt = RepAppl(t)+1;
|
|
nels = arity;
|
|
}
|
|
}
|
|
break;
|
|
case PL_LIST:
|
|
{
|
|
Term t = Yap_MkNewPairTerm();
|
|
|
|
if (nels) {
|
|
if (depth == MAX_DEPTH) {
|
|
fprintf(stderr,"very deep term in PL_unify_term\n");
|
|
return FALSE;
|
|
}
|
|
stack[depth-1].nels = nels;
|
|
stack[depth].ptr = pt+1;
|
|
depth++;
|
|
}
|
|
*pt = t;
|
|
pt = RepPair(t);
|
|
nels = 2;
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "PL_unify_term: %d not supported\n", type);
|
|
exit(1);
|
|
}
|
|
}
|
|
depth--;
|
|
if (depth) {
|
|
pt = stack[depth-1].ptr;
|
|
nels = stack[depth-1].nels;
|
|
}
|
|
}
|
|
va_end (ap);
|
|
return YAP_Unify(Yap_GetFromSlot(l),a[0]);
|
|
}
|
|
|
|
/* end PL_unify_* functions =============================*/
|
|
|
|
/* SWI: void PL_register_atom(atom_t atom) */
|
|
X_API void PL_register_atom(atom_t atom)
|
|
{
|
|
Yap_AtomIncreaseHold(SWIAtomToAtom(atom));
|
|
}
|
|
|
|
/* SWI: void PL_unregister_atom(atom_t atom) */
|
|
X_API void PL_unregister_atom(atom_t atom)
|
|
{
|
|
Yap_AtomDecreaseHold(SWIAtomToAtom(atom));
|
|
}
|
|
|
|
X_API int PL_term_type(term_t t)
|
|
{
|
|
/* YAP_ does not support strings as different objects */
|
|
YAP_Term v = Yap_GetFromSlot(t);
|
|
if (YAP_IsVarTerm(v)) {
|
|
return PL_VARIABLE;
|
|
} else if (IsAtomTerm(v)) {
|
|
return PL_ATOM;
|
|
} else if (YAP_IsIntTerm(v)) {
|
|
return PL_INTEGER;
|
|
} else if (YAP_IsFloatTerm(v)) {
|
|
return PL_FLOAT;
|
|
} else {
|
|
return PL_TERM;
|
|
}
|
|
}
|
|
|
|
X_API int PL_is_atom(term_t t)
|
|
{
|
|
return IsAtomTerm(Yap_GetFromSlot(t));
|
|
}
|
|
|
|
X_API int PL_is_ground(term_t t)
|
|
{
|
|
return Yap_IsGroundTerm(Yap_GetFromSlot(t));
|
|
}
|
|
|
|
X_API int PL_is_callable(term_t t)
|
|
{
|
|
YAP_Term t1 = Yap_GetFromSlot(t);
|
|
if (IsVarTerm(t1))
|
|
return FALSE;
|
|
if (IsAtomTerm(t1) || IsPairTerm(t1))
|
|
return TRUE;
|
|
if (IsApplTerm(t1) && !IsExtensionFunctor(FunctorOfTerm(t1)))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
X_API int PL_is_atomic(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return !YAP_IsVarTerm(t) || !YAP_IsApplTerm(t) || !YAP_IsPairTerm(t);
|
|
}
|
|
|
|
X_API int PL_is_compound(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return (YAP_IsApplTerm(t) || YAP_IsPairTerm(t));
|
|
}
|
|
|
|
X_API int PL_is_functor(term_t ts, functor_t f)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
if (YAP_IsApplTerm(t)) {
|
|
return FunctorOfTerm(t) == (Functor)ff;
|
|
} else if (YAP_IsPairTerm(t)) {
|
|
return FunctorOfTerm(t) == FunctorDot;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
X_API int PL_is_float(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return YAP_IsFloatTerm(t);
|
|
}
|
|
|
|
X_API int PL_is_integer(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return YAP_IsIntTerm(t);
|
|
}
|
|
|
|
X_API int PL_is_list(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return Yap_IsListTerm(t);
|
|
}
|
|
|
|
X_API int PL_is_number(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return YAP_IsIntTerm(t) || YAP_IsFloatTerm(t);
|
|
}
|
|
|
|
X_API int PL_is_string(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
while (YAP_IsPairTerm(t)) {
|
|
YAP_Term hd = YAP_HeadOfTerm(t);
|
|
long int i;
|
|
if (!YAP_IsIntTerm(hd))
|
|
return 0;
|
|
i = YAP_IntOfTerm(hd);
|
|
if (i <= 0 || i >= 255)
|
|
return 0;
|
|
if (!YAP_IsIntTerm(hd))
|
|
return 0;
|
|
t = YAP_TailOfTerm(t);
|
|
}
|
|
if (t != TermNil)
|
|
return 0;
|
|
return FALSE;
|
|
}
|
|
|
|
X_API int PL_is_variable(term_t ts)
|
|
{
|
|
YAP_Term t = Yap_GetFromSlot(ts);
|
|
return YAP_IsVarTerm(t);
|
|
}
|
|
|
|
X_API int PL_compare(term_t ts1, term_t ts2)
|
|
{
|
|
YAP_Term t1 = Yap_GetFromSlot(ts1);
|
|
YAP_Term t2 = Yap_GetFromSlot(ts2);
|
|
return YAP_CompareTerms(t1, t2);
|
|
}
|
|
|
|
X_API char *
|
|
PL_record_external
|
|
(term_t ts, size_t *sz)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
size_t len = 512, nsz;
|
|
char *s;
|
|
|
|
while(TRUE) {
|
|
if (!(s = Yap_AllocCodeSpace(len)))
|
|
return NULL;
|
|
if ((nsz = Yap_ExportTerm(t, s, len))) {
|
|
*sz = nsz;
|
|
return s;
|
|
} else {
|
|
if (len < 16*1024)
|
|
len = len *2;
|
|
else
|
|
len += 16*1024;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
partial implementation of recorded_external, does not guarantee endianness nor portability, and does not
|
|
support constraints.
|
|
*/
|
|
|
|
X_API int
|
|
PL_recorded_external
|
|
(char *tp, term_t ts)
|
|
{
|
|
Term t = Yap_ImportTerm(tp);
|
|
if (t == 0)
|
|
return FALSE;
|
|
Yap_PutInSlot(ts,t);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API int
|
|
PL_erase_external
|
|
(char *tp)
|
|
{
|
|
Yap_FreeCodeSpace(tp);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API record_t
|
|
PL_record(term_t ts)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
return (record_t)Yap_StoreTermInDB(t, 0);
|
|
}
|
|
|
|
X_API int
|
|
PL_recorded(record_t db, term_t ts)
|
|
{
|
|
Term t = Yap_FetchTermFromDB((DBTerm *)db);
|
|
if (t == 0L)
|
|
return FALSE;
|
|
Yap_PutInSlot(ts,t);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API void
|
|
PL_erase(record_t db)
|
|
{
|
|
Yap_ReleaseTermFromDB((DBTerm *)db);
|
|
}
|
|
|
|
X_API void PL_halt(int e)
|
|
{
|
|
YAP_Halt(e);
|
|
}
|
|
|
|
X_API int PL_action(int action,...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start (ap, action);
|
|
switch (action) {
|
|
case PL_ACTION_TRACE:
|
|
fprintf(stderr, "PL_ACTION_TRACE not supported\n");
|
|
break;
|
|
case PL_ACTION_DEBUG:
|
|
fprintf(stderr, "PL_ACTION_DEBUG not supported\n");
|
|
break;
|
|
case PL_ACTION_BACKTRACE:
|
|
fprintf(stderr, "PL_ACTION_BACKTRACE not supported\n");
|
|
break;
|
|
case PL_ACTION_HALT:
|
|
{
|
|
int halt_arg = va_arg(ap, int);
|
|
YAP_Halt(halt_arg);
|
|
}
|
|
break;
|
|
case PL_ACTION_ABORT:
|
|
{
|
|
YAP_Throw(MkAtomTerm(Yap_LookupAtom("abort")));
|
|
}
|
|
break;
|
|
case PL_ACTION_BREAK:
|
|
fprintf(stderr, "PL_ACTION_BREAK not supported\n");
|
|
break;
|
|
case PL_ACTION_GUIAPP:
|
|
fprintf(stderr, "PL_ACTION_GUIAPP not supported\n");
|
|
break;
|
|
case PL_ACTION_WRITE:
|
|
fprintf(stderr, "PL_ACTION_WRITE not supported\n");
|
|
break;
|
|
case PL_ACTION_FLUSH:
|
|
fprintf(stderr, "PL_ACTION_WRITE not supported\n");
|
|
break;
|
|
case PL_ACTION_ATTACH_CONSOLE:
|
|
fprintf(stderr, "PL_ACTION_WRITE not supported\n");
|
|
break;
|
|
}
|
|
va_end (ap);
|
|
return 0;
|
|
}
|
|
|
|
X_API term_t
|
|
PL_exception(qid_t q)
|
|
{
|
|
YAP_Term t;
|
|
if (YAP_GoalHasException(&t)) {
|
|
term_t to = Yap_NewSlots(1);
|
|
Yap_PutInSlot(to,t);
|
|
return to;
|
|
} else {
|
|
return 0L;
|
|
}
|
|
}
|
|
|
|
X_API void
|
|
PL_clear_exception(void)
|
|
{
|
|
EX = NULL;
|
|
}
|
|
|
|
X_API int
|
|
PL_initialise(int myargc, char **myargv)
|
|
{
|
|
YAP_init_args init_args;
|
|
|
|
memset((void *)&init_args,0,sizeof(init_args));
|
|
init_args.Argv = myargv;
|
|
init_args.Argc = myargc;
|
|
#if BOOT_FROM_SAVED_STATE
|
|
init_args.SavedState = "startup.yss";
|
|
#else
|
|
init_args.SavedState = NULL;
|
|
#endif
|
|
init_args.YapLibDir = NULL;
|
|
init_args.YapPrologBootFile = NULL;
|
|
init_args.HaltAfterConsult = FALSE;
|
|
init_args.FastBoot = FALSE;
|
|
init_args.MaxTableSpaceSize = 0;
|
|
init_args.NumberWorkers = 1;
|
|
init_args.SchedulerLoop = 10;
|
|
init_args.DelayedReleaseLoad = 3;
|
|
|
|
Yap_PL_Argc = myargc;
|
|
Yap_PL_Argv = myargv;
|
|
Yap_InitialisedFromPL = TRUE;
|
|
return YAP_Init(&init_args) != YAP_BOOT_ERROR;
|
|
}
|
|
|
|
X_API int
|
|
PL_is_initialised(int *argcp, char ***argvp)
|
|
{
|
|
if (Yap_InitialisedFromPL) {
|
|
if (argcp)
|
|
*argcp = Yap_PL_Argc;
|
|
if (argvp)
|
|
*argvp = Yap_PL_Argv;
|
|
}
|
|
return Yap_InitialisedFromPL;
|
|
}
|
|
|
|
X_API module_t
|
|
PL_context(void)
|
|
{
|
|
return (module_t)YAP_CurrentModule();
|
|
}
|
|
|
|
X_API int
|
|
PL_strip_module(term_t raw, module_t *m, term_t plain)
|
|
{
|
|
YAP_Term t = YAP_StripModule(Yap_GetFromSlot(raw),(YAP_Term *)m);
|
|
if (!t)
|
|
return FALSE;
|
|
Yap_PutInSlot(plain, t);
|
|
return TRUE;
|
|
}
|
|
|
|
X_API atom_t PL_module_name(module_t m)
|
|
{
|
|
Term t;
|
|
Atom at = AtomOfTerm((Term)m);
|
|
WRITE_LOCK(RepAtom(at)->ARWLock);
|
|
t = Yap_Module(MkAtomTerm(at));
|
|
WRITE_UNLOCK(RepAtom(at)->ARWLock);
|
|
return AtomToSWIAtom(at);
|
|
}
|
|
|
|
X_API predicate_t PL_pred(functor_t f, module_t m)
|
|
{
|
|
Functor ff = SWIFunctorToFunctor(f);
|
|
Term mod = SWIModuleToModule(m);
|
|
|
|
if (IsAtomTerm((Term)f)) {
|
|
return YAP_Predicate(YAP_AtomOfTerm((Term)f),0,mod);
|
|
} else {
|
|
return YAP_Predicate((YAP_Atom)NameOfFunctor(ff),ArityOfFunctor(ff),mod);
|
|
}
|
|
}
|
|
|
|
X_API predicate_t PL_predicate(const char *name, int arity, const char *m)
|
|
{
|
|
Term mod;
|
|
Atom at;
|
|
if (m == NULL) {
|
|
mod = CurrentModule;
|
|
if (!mod) mod = USER_MODULE;
|
|
} else {
|
|
Atom at;
|
|
while (!(at = Yap_LookupAtom((char *)m))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return NULL;
|
|
}
|
|
}
|
|
mod = MkAtomTerm(at);
|
|
}
|
|
while (!(at = Yap_LookupAtom((char *)name))) {
|
|
if (!Yap_growheap(FALSE, 0L, NULL)) {
|
|
Yap_Error(OUT_OF_HEAP_ERROR, TermNil, Yap_ErrorMessage);
|
|
return NULL;
|
|
}
|
|
}
|
|
return YAP_Predicate((YAP_Atom)at, arity, mod);
|
|
}
|
|
|
|
X_API void PL_predicate_info(predicate_t p,atom_t *name, int *arity, module_t *m)
|
|
{
|
|
PredEntry *pd = (PredEntry *)p;
|
|
Atom aname;
|
|
|
|
if (pd->ArityOfPE) {
|
|
*arity = pd->ArityOfPE;
|
|
aname = NameOfFunctor(pd->FunctorOfPred);
|
|
} else {
|
|
*arity = 0;
|
|
aname = (Atom)(pd->FunctorOfPred);
|
|
}
|
|
if (pd->ModuleOfPred)
|
|
*m = (module_t)pd->ModuleOfPred;
|
|
else
|
|
*m = (module_t)TermProlog;
|
|
*name = AtomToSWIAtom(aname);
|
|
}
|
|
|
|
X_API fid_t
|
|
PL_open_foreign_frame(void)
|
|
{
|
|
open_query *new = (open_query *)malloc(sizeof(open_query));
|
|
if (!new) return 0;
|
|
new->old = execution;
|
|
new->g = TermNil;
|
|
new->open = FALSE;
|
|
new->cp = CP;
|
|
new->p = P;
|
|
new->slots = CurSlot;
|
|
Yap_StartSlots();
|
|
execution = new;
|
|
return (fid_t)new;
|
|
}
|
|
|
|
X_API void
|
|
PL_close_foreign_frame(fid_t f)
|
|
{
|
|
execution = (open_query *)f;
|
|
CP = execution->cp;
|
|
P = execution->p;
|
|
CurSlot = execution->slots;
|
|
execution = execution->old;
|
|
}
|
|
|
|
X_API void
|
|
PL_rewind_foreign_frame(fid_t f)
|
|
{
|
|
execution = (open_query *)f;
|
|
CurSlot = execution->slots;
|
|
}
|
|
|
|
X_API void
|
|
PL_discard_foreign_frame(fid_t f)
|
|
{
|
|
execution = (open_query *)f;
|
|
CP = execution->cp;
|
|
P = execution->p;
|
|
CurSlot = execution->slots;
|
|
execution = execution->old;
|
|
}
|
|
|
|
X_API qid_t PL_open_query(module_t ctx, int flags, predicate_t p, term_t t0)
|
|
{
|
|
Atom yname;
|
|
unsigned long int arity;
|
|
Term t[2], m;
|
|
|
|
/* ignore flags and module for now */
|
|
if (execution == NULL)
|
|
PL_open_foreign_frame();
|
|
if (execution->open != 0) {
|
|
YAP_Error(0, 0L, "only one query at a time allowed\n");
|
|
return FALSE;
|
|
}
|
|
execution->open=1;
|
|
execution->state=0;
|
|
PredicateInfo((PredEntry *)p, &yname, &arity, &m);
|
|
t[0] = SWIModuleToModule(ctx);
|
|
if (arity == 0) {
|
|
t[1] = MkAtomTerm(yname);
|
|
} else {
|
|
Functor f = Yap_MkFunctor(yname, arity);
|
|
t[1] = Yap_MkApplTerm(f,arity,Yap_AddressFromSlot(t0));
|
|
}
|
|
if (ctx) {
|
|
Term ti;
|
|
t[0] = MkAtomTerm((Atom)ctx);
|
|
ti = Yap_MkApplTerm(FunctorModule,2,t);
|
|
t[0] = ti;
|
|
execution->g = Yap_MkApplTerm(FunctorCall,1,t);
|
|
} else {
|
|
if (m && m != CurrentModule) {
|
|
Term ti;
|
|
t[0] = m;
|
|
ti = Yap_MkApplTerm(FunctorModule,2,t);
|
|
t[0] = ti;
|
|
execution->g = Yap_MkApplTerm(FunctorCall,1,t);
|
|
} else {
|
|
execution->g = t[1];
|
|
}
|
|
}
|
|
return execution;
|
|
}
|
|
|
|
X_API int PL_next_solution(qid_t qi)
|
|
{
|
|
int result;
|
|
|
|
if (qi->open != 1) return 0;
|
|
if (setjmp(execution->env))
|
|
return 0;
|
|
if (qi->state == 0) {
|
|
result = YAP_RunGoal(qi->g);
|
|
} else {
|
|
result = YAP_RestartGoal();
|
|
}
|
|
qi->state = 1;
|
|
if (result == 0) {
|
|
qi->open = 0;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
X_API void PL_cut_query(qid_t qi)
|
|
{
|
|
if (qi->open != 1) return;
|
|
YAP_PruneGoal();
|
|
YAP_cut_up();
|
|
qi->open = 0;
|
|
}
|
|
|
|
X_API void PL_close_query(qid_t qi)
|
|
{
|
|
/* need to implement backtracking here */
|
|
if (qi->open != 1)
|
|
return;
|
|
YAP_PruneGoal();
|
|
YAP_RestartGoal();
|
|
qi->open = 0;
|
|
}
|
|
|
|
X_API int PL_call_predicate(module_t ctx, int flags, predicate_t p, term_t t0)
|
|
{
|
|
qid_t qi = PL_open_query(ctx, flags, p, t0);
|
|
int ret = PL_next_solution(qi);
|
|
PL_cut_query(qi);
|
|
return ret;
|
|
}
|
|
|
|
X_API int PL_toplevel(void)
|
|
{
|
|
return YAP_RunGoal(MkAtomTerm(Yap_FullLookupAtom("$live")));
|
|
}
|
|
|
|
X_API int PL_call(term_t tp, module_t m)
|
|
{
|
|
int out;
|
|
|
|
BACKUP_B();
|
|
BACKUP_H();
|
|
|
|
Term t[2], g;
|
|
t[0] = SWIModuleToModule(m);
|
|
t[1] = Yap_GetFromSlot(tp);
|
|
g = Yap_MkApplTerm(FunctorModule,2,t);
|
|
out = YAP_RunGoal(g);
|
|
|
|
RECOVER_H();
|
|
RECOVER_B();
|
|
return out;
|
|
}
|
|
|
|
X_API void PL_register_foreign_in_module(const char *module, const char *name, int arity, pl_function_t function, int flags)
|
|
{
|
|
Term tmod;
|
|
Int nflags = 0;
|
|
|
|
if (flags & (PL_FA_NOTRACE|PL_FA_CREF)) {
|
|
fprintf(stderr,"PL_register_foreign_in_module called with non-implemented flag %x when creating predicate %s:%s/%d\n", flags, module, name, arity);
|
|
}
|
|
if (module == NULL) {
|
|
tmod = CurrentModule;
|
|
} else {
|
|
tmod = MkAtomTerm(Yap_LookupAtom((char *)module));
|
|
}
|
|
if (flags & PL_FA_VARARGS) {
|
|
nflags = SWIEnvPredFlag;
|
|
}
|
|
if (flags & PL_FA_TRANSPARENT) {
|
|
nflags |= ModuleTransparentPredFlag;
|
|
} else {
|
|
nflags |= CArgsPredFlag;
|
|
}
|
|
if (flags & PL_FA_NONDETERMINISTIC) {
|
|
Yap_InitCPredBackCut((char *)name, arity, sizeof(struct foreign_context)/sizeof(CELL), (CPredicate)function, (CPredicate)function, (CPredicate)function, UserCPredFlag|nflags);
|
|
} else {
|
|
UserCPredicate((char *)name,(CPredicate)function,arity,tmod,nflags);
|
|
}
|
|
}
|
|
|
|
X_API void PL_register_extensions(const PL_extension *ptr)
|
|
{
|
|
PL_load_extensions(ptr);
|
|
}
|
|
|
|
X_API void PL_register_foreign(const char *name, int arity, pl_function_t function, int flags)
|
|
{
|
|
PL_register_foreign_in_module(NULL, name, arity, function, flags);
|
|
}
|
|
|
|
X_API void PL_load_extensions(const PL_extension *ptr)
|
|
{
|
|
/* ignore flags for now */
|
|
while(ptr->predicate_name != NULL) {
|
|
PL_register_foreign_in_module(NULL, ptr->predicate_name, ptr->arity, ptr->function, ptr->flags);
|
|
ptr++;
|
|
}
|
|
}
|
|
|
|
X_API int PL_is_inf(term_t st)
|
|
{
|
|
Term t = Deref(Yap_GetFromSlot(st));
|
|
Float fl;
|
|
if (IsVarTerm(t)) return FALSE;
|
|
if (!IsFloatTerm(t)) return FALSE;
|
|
fl = FloatOfTerm(t);
|
|
#if HAVE_ISINF
|
|
return isinf(fl);
|
|
#elif HAVE_FPCLASS
|
|
return (fpclass(fl) == FP_NINF || fpclass(fl) == FP_PINF);
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
X_API int PL_thread_self(void)
|
|
{
|
|
#if THREADS
|
|
if (pthread_getspecific(Yap_yaamregs_key) == NULL)
|
|
return -1;
|
|
return worker_id;
|
|
#else
|
|
return -2;
|
|
#endif
|
|
}
|
|
|
|
X_API int PL_unify_thread_id(term_t t, int i)
|
|
{
|
|
Term iterm = MkIntegerTerm(i);
|
|
return Yap_unify(Yap_GetFromSlot(t),iterm);
|
|
}
|
|
|
|
|
|
X_API int PL_thread_attach_engine(const PL_thread_attr_t *attr)
|
|
{
|
|
int wid = PL_thread_self();
|
|
|
|
if (wid < 0) {
|
|
/* we do not have an engine */
|
|
if (attr) {
|
|
YAP_thread_attr yapt;
|
|
int wid;
|
|
|
|
yapt.ssize = attr->local_size;
|
|
yapt.tsize = attr->global_size;
|
|
yapt.alias = (YAP_Term)attr->alias;
|
|
yapt.cancel = attr->cancel;
|
|
wid = YAP_ThreadCreateEngine(&yapt);
|
|
} else {
|
|
wid = YAP_ThreadCreateEngine(NULL);
|
|
}
|
|
if (wid < 0)
|
|
return -1;
|
|
if (YAP_ThreadAttachEngine(wid)) {
|
|
return wid;
|
|
}
|
|
return -1;
|
|
} else {
|
|
/* attach myself again */
|
|
return YAP_ThreadAttachEngine(wid);
|
|
}
|
|
}
|
|
|
|
X_API int PL_thread_destroy_engine(void)
|
|
{
|
|
int wid = PL_thread_self();
|
|
|
|
if (wid < 0) {
|
|
/* we do not have an engine */
|
|
return FALSE;
|
|
}
|
|
YAP_ThreadDetachEngine(wid);
|
|
return YAP_ThreadDestroyEngine(wid);
|
|
}
|
|
|
|
X_API int
|
|
PL_thread_at_exit(void (*function)(void *), void *closure, int global)
|
|
{
|
|
/* don't do nothing for now */
|
|
fprintf(stderr,"%% YAP ERROR: PL_thread_at_exit not implemented yet\n");
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
X_API PL_engine_t
|
|
PL_create_engine(const PL_thread_attr_t *attr)
|
|
{
|
|
#if THREADS
|
|
if (attr) {
|
|
YAP_thread_attr yapt;
|
|
|
|
yapt.ssize = attr->local_size;
|
|
yapt.tsize = attr->global_size;
|
|
yapt.alias = (YAP_Term)attr->alias;
|
|
yapt.cancel = attr->cancel;
|
|
return Yap_WLocal+YAP_ThreadCreateEngine(&yapt);
|
|
} else {
|
|
return Yap_WLocal+YAP_ThreadCreateEngine(NULL);
|
|
}
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
|
|
X_API int
|
|
PL_destroy_engine(PL_engine_t e)
|
|
{
|
|
#if THREADS
|
|
return YAP_ThreadDestroyEngine((struct worker_local *)e-Yap_WLocal);
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
X_API int
|
|
PL_set_engine(PL_engine_t engine, PL_engine_t *old)
|
|
{
|
|
#if THREADS
|
|
int cwid = PL_thread_self(), nwid;
|
|
|
|
if (cwid >= 0) {
|
|
if (old) *old = (PL_engine_t)(Yap_WLocal+cwid);
|
|
}
|
|
if (!engine) {
|
|
if (cwid < 0)
|
|
return PL_ENGINE_INVAL;
|
|
if (!YAP_ThreadDetachEngine(worker_id)) {
|
|
return PL_ENGINE_INVAL;
|
|
}
|
|
return PL_ENGINE_SET;
|
|
}
|
|
if (engine == PL_ENGINE_MAIN) {
|
|
nwid = 0;
|
|
} else if (engine == PL_ENGINE_CURRENT) {
|
|
if (cwid < 0) {
|
|
if (old) *old = NULL;
|
|
return PL_ENGINE_INVAL;
|
|
}
|
|
return PL_ENGINE_SET;
|
|
} else {
|
|
nwid = (struct worker_local *)engine-Yap_WLocal;
|
|
}
|
|
|
|
pthread_mutex_lock(&(FOREIGN_ThreadHandle(nwid).tlock));
|
|
if (FOREIGN_ThreadHandle(nwid).pthread_handle) {
|
|
pthread_mutex_unlock(&(FOREIGN_ThreadHandle(nwid).tlock));
|
|
if (cwid != nwid) {
|
|
return PL_ENGINE_INUSE;
|
|
}
|
|
return PL_ENGINE_SET;
|
|
}
|
|
if (cwid >= 0) {
|
|
if (!YAP_ThreadDetachEngine(cwid)) {
|
|
*old = NULL;
|
|
pthread_mutex_unlock(&(FOREIGN_ThreadHandle(nwid).tlock));
|
|
return PL_ENGINE_INVAL;
|
|
}
|
|
}
|
|
if (!YAP_ThreadAttachEngine(nwid)) {
|
|
return PL_ENGINE_INVAL;
|
|
}
|
|
return PL_ENGINE_SET;
|
|
#else
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
|
|
X_API void *
|
|
PL_malloc(int sz)
|
|
{
|
|
return (void *)Yap_AllocCodeSpace((long unsigned int)sz);
|
|
}
|
|
|
|
X_API void *
|
|
PL_realloc(void *ptr, int sz)
|
|
{
|
|
return Yap_ReallocCodeSpace((char *)ptr,(long unsigned int)sz);
|
|
}
|
|
|
|
X_API void
|
|
PL_free(void *obj)
|
|
{
|
|
return Yap_FreeCodeSpace((char *)obj);
|
|
}
|
|
|
|
X_API int
|
|
PL_eval_expression_to_int64_ex(term_t t, int64_t *val)
|
|
{
|
|
Term res = Yap_Eval(Yap_GetFromSlot(t));
|
|
if (!res) {
|
|
return FALSE;
|
|
}
|
|
if (IsIntegerTerm(res)) {
|
|
*val = IntegerOfTerm(res);
|
|
return TRUE;
|
|
#if SIZEOF_LONG_INT==4 && USE_GMP
|
|
} else if (YAP_IsBigNumTerm(res)) {
|
|
MP_INT g;
|
|
char s[64];
|
|
|
|
YAP_BigNumOfTerm(t, (void *)&g);
|
|
if (mpz_sizeinbase(&g,2) > 64) {
|
|
return PL_error(NULL,0,NULL, ERR_EVALUATION, AtomToSWIAtom(Yap_LookupAtom("int_overflow")));
|
|
}
|
|
mpz_get_str (s, 10, &g);
|
|
#ifdef _WIN32
|
|
sscanf(s, "%I64d", (long long int *)val);
|
|
#else
|
|
sscanf(s, "%lld", (long long int *)val);
|
|
#endif
|
|
return 1;
|
|
#endif
|
|
}
|
|
PL_error(NULL,0,NULL, ERR_TYPE, AtomToSWIAtom(Yap_LookupAtom("integer_expression")));
|
|
return FALSE;
|
|
}
|
|
|
|
foreign_t
|
|
_PL_retry(intptr_t n)
|
|
{
|
|
/* first we need to get the pointer to the predicate */
|
|
PredEntry *pe = B->cp_ap->u.OtapFs.p;
|
|
struct foreign_context *ctx = (struct foreign_context *)(&EXTRA_CBACK_ARG(pe->ArityOfPE,1));
|
|
ctx->context = n;
|
|
return LCL0-(CELL *)ctx;
|
|
}
|
|
|
|
foreign_t
|
|
_PL_retry_address(void *addr)
|
|
{
|
|
/* first we need to get the pointer to the predicate */
|
|
PredEntry *pe = B->cp_ap->u.OtapFs.p;
|
|
struct foreign_context *ctx = (struct foreign_context *)(&EXTRA_CBACK_ARG(pe->ArityOfPE,1));
|
|
ctx->context = (intptr_t)addr;
|
|
return LCL0-(CELL *)ctx;
|
|
}
|
|
|
|
|
|
X_API int
|
|
PL_foreign_control(control_t ctx)
|
|
{
|
|
switch (ctx->control) {
|
|
case FRG_REDO:
|
|
return PL_REDO;
|
|
case FRG_FIRST_CALL:
|
|
return PL_FIRST_CALL;
|
|
default:
|
|
return PL_CUTTED;
|
|
}
|
|
}
|
|
|
|
X_API intptr_t
|
|
PL_foreign_context(control_t ctx)
|
|
{
|
|
switch (ctx->control) {
|
|
case FRG_FIRST_CALL:
|
|
return 0L;
|
|
default:
|
|
return (intptr_t)(ctx->context);
|
|
}
|
|
}
|
|
|
|
|
|
X_API void *
|
|
PL_foreign_context_address(control_t ctx)
|
|
{
|
|
switch (ctx->control) {
|
|
case FRG_FIRST_CALL:
|
|
return NULL;
|
|
default:
|
|
return (void *)(ctx->context);
|
|
}
|
|
}
|
|
|
|
static int
|
|
SWI_ctime(void)
|
|
{
|
|
#if HAVE_CTIME
|
|
time_t tim;
|
|
#endif
|
|
YAP_Term t1 = YAP_ARG1;
|
|
|
|
if (YAP_IsVarTerm(t1)) {
|
|
YAP_Error(0,t1,"bad argumento to ctime");
|
|
return FALSE;
|
|
}
|
|
#if HAVE_CTIME
|
|
if (YAP_IsIntTerm(t1))
|
|
tim = (time_t)YAP_IntOfTerm(t1);
|
|
else if (YAP_IsFloatTerm(t1))
|
|
tim = (time_t)YAP_FloatOfTerm(t1);
|
|
else
|
|
return FALSE;
|
|
return YAP_Unify(YAP_BufferToString(ctime(&tim)), YAP_ARG2);
|
|
#else
|
|
YAP_Error(0,0L,"convert_time requires ctime");
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
X_API int
|
|
PL_get_signum_ex(term_t sig, int *n)
|
|
{
|
|
char *s;
|
|
int i = -1;
|
|
|
|
if ( PL_get_integer(sig, &i) )
|
|
{
|
|
} else if ( PL_get_chars(sig, &s, CVT_ATOM) )
|
|
{ i = Yap_signal_index(s);
|
|
} else
|
|
{ return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_signal, sig);
|
|
}
|
|
|
|
if ( i > 0 && i < 32 ) /* where to get these? */
|
|
{ *n = i;
|
|
return TRUE;
|
|
}
|
|
|
|
return PL_error(NULL, 0, NULL, ERR_DOMAIN, ATOM_signal, sig);
|
|
}
|
|
|
|
typedef struct blob {
|
|
Functor f;
|
|
CELL type;
|
|
MP_INT blinfo; /* total size should go here */
|
|
PL_blob_t *blb;
|
|
size_t size;
|
|
CELL blob_data[1];
|
|
} blob_t;
|
|
|
|
X_API int
|
|
PL_is_blob(term_t ts, PL_blob_t **type)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
blob_t *b;
|
|
|
|
if (IsVarTerm(t) || !IsApplTerm(t))
|
|
return FALSE;
|
|
b = (blob_t *)RepAppl(t);
|
|
if (b->f != FunctorBigInt)
|
|
return FALSE;
|
|
if (b->type != EXTERNAL_BLOB)
|
|
return FALSE;
|
|
*type = b->blb;
|
|
return TRUE;
|
|
}
|
|
|
|
X_API intptr_t
|
|
PL_query(int query)
|
|
{
|
|
switch(query) {
|
|
case PL_QUERY_ARGC:
|
|
return (intptr_t)Yap_argc;
|
|
case PL_QUERY_ARGV:
|
|
return (intptr_t)Yap_argv;
|
|
case PL_QUERY_USER_CPU:
|
|
return (intptr_t)Yap_cputime();
|
|
default:
|
|
fprintf(stderr,"Unimplemented PL_query %d\n",query);
|
|
return (intptr_t)0;
|
|
}
|
|
}
|
|
|
|
|
|
X_API void *
|
|
PL_blob_data(term_t ts, size_t *len, PL_blob_t **type)
|
|
{
|
|
Term t = Yap_GetFromSlot(ts);
|
|
blob_t *b;
|
|
|
|
|
|
if (IsVarTerm(t) || !IsApplTerm(t))
|
|
return FALSE;
|
|
b = (blob_t *)RepAppl(t);
|
|
if (b->f != FunctorBigInt)
|
|
return NULL;
|
|
if (b->type != EXTERNAL_BLOB)
|
|
return NULL;
|
|
*type = b->blb;
|
|
*len = b->size;
|
|
return (void *)(&b->blob_data);
|
|
}
|
|
|
|
/* glue function to connect back PLStream to YAP IO */
|
|
X_API void
|
|
PL_YAP_InitSWIIO(struct SWI_IO *swio)
|
|
{
|
|
FSWIStream = SWIFunctorToFunctor(swio->f);
|
|
SWIGetc = swio->get_c;
|
|
SWIPutc = swio->put_c;
|
|
SWIWideGetc = swio->get_w;
|
|
SWIWidePutc = swio->put_w;
|
|
SWIClose = swio->close_s;
|
|
}
|
|
|
|
|
|
X_API void (*PL_signal(int sig, void (*func)(int)))(int)
|
|
{
|
|
// return Yap_signal2(sig,func);
|
|
return NULL;
|
|
}
|
|
|
|
X_API void PL_on_halt(void (*f)(int, void *), void *closure)
|
|
{
|
|
}
|
|
|
|
void Yap_swi_install(void);
|
|
|
|
void
|
|
Yap_swi_install(void)
|
|
{
|
|
YAP_UserCPredicate("ctime", SWI_ctime, 2);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
|
|
#include <windows.h>
|
|
|
|
int WINAPI PROTO(win_yap2swi, (HANDLE, DWORD, LPVOID));
|
|
|
|
int WINAPI win_yap2swi(HANDLE hinst, DWORD reason, LPVOID reserved)
|
|
{
|
|
switch (reason)
|
|
{
|
|
case DLL_PROCESS_ATTACH:
|
|
break;
|
|
case DLL_PROCESS_DETACH:
|
|
break;
|
|
case DLL_THREAD_ATTACH:
|
|
break;
|
|
case DLL_THREAD_DETACH:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
#endif
|
|
|