static int
OpDec(int p, const char *type, Atom a, Term m)
{
int i;
AtomEntry *ae = RepAtom(a);
OpEntry *info;
if (m == TermProlog)
m = PROLOG_MODULE;
else if (m == USER_MODULE)
m = PROLOG_MODULE;
for (i = 1; i <= 7; ++i)
if (strcmp(type, optypes[i]) == 0)
break;
if (i > 7) {
Yap_Error(DOMAIN_ERROR_OPERATOR_SPECIFIER,MkAtomTerm(Yap_LookupAtom(type)),"op/3");
return(FALSE);
}
if (p) {
if (i == 1 || i == 2 || i == 4)
p |= DcrlpFlag;
if (i == 1 || i == 3 || i == 6)
p |= DcrrpFlag;
}
WRITE_LOCK(ae->ARWLock);
info = Yap_GetOpPropForAModuleHavingALock(ae, m);
if (EndOfPAEntr(info)) {
info = (OpEntry *) Yap_AllocAtomSpace(sizeof(OpEntry));
info->KindOfPE = Ord(OpProperty);
info->OpModule = m;
info->OpName = a;
//LOCK(OpListLock);
info->OpNext = OpList;
OpList = info;
//UNLOCK(OpListLock);
AddPropToAtom(ae, (PropEntry *)info);
INIT_RWLOCK(info->OpRWLock);
WRITE_LOCK(info->OpRWLock);
WRITE_UNLOCK(ae->ARWLock);
info->Prefix = info->Infix = info->Posfix = 0;
} else {
WRITE_LOCK(info->OpRWLock);
WRITE_UNLOCK(ae->ARWLock);
}
if (i <= 3) {
GET_LD
if (truePrologFlag(PLFLAG_ISO) &&
info->Posfix != 0) /* there is a posfix operator */ {
/* ISO dictates */
WRITE_UNLOCK(info->OpRWLock);
Yap_Error(PERMISSION_ERROR_CREATE_OPERATOR,MkAtomTerm(a),"op/3");
return FALSE;
}
info->Infix = p;
} else if (i <= 5) {
void Yap_PrintPredName(PredEntry *ap) {
CACHE_REGS
Term tmod = ap->ModuleOfPred;
if (!tmod)
tmod = TermProlog;
#if THREADS
Yap_DebugPlWrite(MkIntegerTerm(worker_id));
Yap_DebugPutc(stderr, ' ');
#endif
Yap_DebugPutc(stderr, '>');
Yap_DebugPutc(stderr, '\t');
Yap_DebugPlWrite(tmod);
Yap_DebugPutc(stderr, ':');
if (ap->ModuleOfPred == IDB_MODULE) {
Term t = Deref(ARG1);
if (IsAtomTerm(t)) {
Yap_DebugPlWrite(t);
} else if (IsIntegerTerm(t)) {
Yap_DebugPlWrite(t);
} else {
Functor f = FunctorOfTerm(t);
Atom At = NameOfFunctor(f);
Yap_DebugPlWrite(MkAtomTerm(At));
Yap_DebugPutc(stderr, '/');
Yap_DebugPlWrite(MkIntegerTerm(ArityOfFunctor(f)));
}
} else {
if (ap->ArityOfPE == 0) {
Atom At = (Atom)ap->FunctorOfPred;
Yap_DebugPlWrite(MkAtomTerm(At));
} else {
Functor f = ap->FunctorOfPred;
Atom At = NameOfFunctor(f);
Yap_DebugPlWrite(MkAtomTerm(At));
Yap_DebugPutc(stderr, '/');
Yap_DebugPlWrite(MkIntegerTerm(ArityOfFunctor(f)));
}
}
char s[1024];
if (ap->PredFlags & StandardPredFlag)
fprintf(stderr, "S");
if (ap->PredFlags & CPredFlag)
fprintf(stderr, "C");
if (ap->PredFlags & UserCPredFlag)
fprintf(stderr, "U");
if (ap->PredFlags & SyncPredFlag)
fprintf(stderr, "Y");
if (ap->PredFlags & LogUpdatePredFlag)
fprintf(stderr, "Y");
if (ap->PredFlags & HiddenPredFlag)
fprintf(stderr, "H");
sprintf(s, " %llx\n", ap->PredFlags);
Yap_DebugPuts(stderr, s);
}
static bool
found_eof(int sno,
Term t2 USES_REGS) { /* '$set_output'(+Stream,-ErrorMessage) */
stream_flags_t flags =
GLOBAL_Stream[sno].status & (Past_Eof_Stream_f | Eof_Stream_f);
if (!IsVarTerm(t2) && !(isatom(t2))) {
return FALSE;
}
if (flags & Past_Eof_Stream_f)
return Yap_unify(t2, MkAtomTerm(AtomPast));
if (flags & Eof_Stream_f)
return Yap_unify(t2, MkAtomTerm(AtomAt));
return Yap_unify(t2, MkAtomTerm(AtomNot));
}
bool Yap_PrintWarning(Term twarning) {
CACHE_REGS
PredEntry *pred = RepPredProp(PredPropByFunc(
FunctorPrintMessage, PROLOG_MODULE)); // PROCEDURE_print_message2;
Term cmod = ( CurrentModule == PROLOG_MODULE ? TermProlog : CurrentModule );
bool rc;
Term ts[2];
if (LOCAL_within_print_message) {
/* error within error */
fprintf(stderr, "%% WARNING WITHIN WARNING\n");
Yap_RestartYap(1);
}
LOCAL_DoingUndefp = true;
LOCAL_within_print_message = true;
if (pred->OpcodeOfPred == UNDEF_OPCODE ||
pred->OpcodeOfPred == FAIL_OPCODE
) {
fprintf(stderr, "warning message:\n");
Yap_DebugPlWrite(twarning);
fprintf(stderr, "\n");
LOCAL_DoingUndefp = false;
LOCAL_within_print_message = false;
CurrentModule = cmod;
return false;
}
ts[1] = twarning;
ts[0] = MkAtomTerm(AtomWarning);
HB = B->cp_h = HR;
B->cp_tr = TR;
rc = Yap_execute_pred(pred, ts, true PASS_REGS);
LOCAL_within_print_message = false;
LOCAL_DoingUndefp = false;
return rc;
}
static Int file_base_name(USES_REGS1) { /* file_base_name(Stream,N) */
Term t = Deref(ARG1);
Atom at;
if (IsVarTerm(t)) {
Yap_Error(INSTANTIATION_ERROR, t, "file_base_name/2");
return FALSE;
}
at = AtomOfTerm(t);
const char *c = RepAtom(at)->StrOfAE;
const char *s;
#if HAVE_BASENAME && 0 // DISABLED: Linux basename is not compatible with
// file_base_name in SWI and GNU
char c1[YAP_FILENAME_MAX + 1];
strncpy(c1, c, YAP_FILENAME_MAX);
s = basename(c1);
#else
Int i = strlen(c);
while (i && !Yap_dir_separator((int)c[--i]))
;
if (Yap_dir_separator((int)c[i])) {
i++;
}
s = c + i;
#endif
return Yap_unify(ARG2, MkAtomTerm(Yap_LookupAtom(s)));
}
static Int file_directory_name(USES_REGS1) { /* file_directory_name(Stream,N) */
Term t = Deref(ARG1);
Atom at;
if (IsVarTerm(t)) {
Yap_Error(INSTANTIATION_ERROR, t, "file_directory_name/2");
return false;
}
at = AtomOfTerm(t);
const char *c = RepAtom(at)->StrOfAE;
#if HAVE_BASENAME && 0 // DISABLED: Linux basename is not compatible with
// file_base_name in SWI and GNU
const char *s;
char c1[YAP_FILENAME_MAX + 1];
strncpy(c1, c, YAP_FILENAME_MAX);
s = dirname(c1);
#else
char s[YAP_FILENAME_MAX + 1];
Int i = strlen(c);
strncpy(s, c, YAP_FILENAME_MAX);
while (--i) {
if (Yap_dir_separator((int)c[i]))
break;
}
if (i == 0) {
s[0] = '.';
i = 1;
}
s[i] = '\0';
#endif
return Yap_unify(ARG2, MkAtomTerm(Yap_LookupAtom(s)));
}
static Term
VarNames(VarEntry *p,Term l USES_REGS)
{
if (p != NULL) {
if (strcmp(p->VarRep, "_") != 0) {
Term t[2];
Term o;
t[0] = MkAtomTerm(Yap_LookupAtom(p->VarRep));
t[1] = p->VarAdr;
o = Yap_MkApplTerm(FunctorEq, 2, t);
o = MkPairTerm(o, VarNames(p->VarRight,
VarNames(p->VarLeft,l PASS_REGS) PASS_REGS));
if (HR > ASP-4096) {
save_machine_regs();
siglongjmp(LOCAL_IOBotch,1);
}
return(o);
} else {
return VarNames(p->VarRight,VarNames(p->VarLeft,l PASS_REGS) PASS_REGS);
}
} else {
return (l);
}
}
static Int
p_stream_to_terms(void)
{
int sno = Yap_CheckStream (ARG1, Input_Stream_f, "read_line_to_codes/2");
Term t = Deref(ARG3), tpos = TermNil;
if (sno < 0)
return FALSE;
while (!(Stream[sno].status & Eof_Stream_f)) {
/* skip errors */
TokEntry *tokstart = Yap_tokptr = Yap_toktide = Yap_tokenizer(sno, &tpos);
if (!Yap_ErrorMessage)
{
Term th = Yap_Parse();
if (H >= ASP-1024) {
UNLOCK(Stream[sno].streamlock);
Yap_Error(OUT_OF_STACK_ERROR, ARG1, "read_stream_to_terms/3");
return FALSE;
}
if (!th || Yap_ErrorMessage)
break;
if (th == MkAtomTerm (AtomEof)) {
UNLOCK(Stream[sno].streamlock);
Yap_clean_tokenizer(tokstart, Yap_VarTable, Yap_AnonVarTable);
return Yap_unify(t,ARG2);
} else {
t = MkPairTerm(th,t);
}
}
Yap_clean_tokenizer(tokstart, Yap_VarTable, Yap_AnonVarTable);
}
UNLOCK(Stream[sno].streamlock);
return Yap_unify(t,ARG2);
}
/** @pred compare( _C_, _X_, _Y_) is iso
As a result of comparing _X_ and _Y_, _C_ may take one of
the following values:
+
`=` if _X_ and _Y_ are identical;
+
`<` if _X_ precedes _Y_ in the defined order;
+
`>` if _Y_ precedes _X_ in the defined order;
*/
Int p_compare(USES_REGS1) { /* compare(?Op,?T1,?T2) */
Int r = compare(Deref(ARG2), Deref(ARG3));
Atom p;
Term t = Deref(ARG1);
if (r < 0)
p = AtomLT;
else if (r > 0)
p = AtomGT;
else
p = AtomEQ;
if (!IsVarTerm(t)) {
if (IsAtomTerm(t)) {
Atom a = AtomOfTerm(t);
if (a == p)
return true;
if (a != AtomLT && a != AtomGT && a != AtomEq)
Yap_Error(DOMAIN_ERROR_ORDER, ARG1, NULL);
} else {
Yap_Error(TYPE_ERROR_ATOM, ARG1, NULL);
}
return false;
}
return Yap_unify_constant(ARG1, MkAtomTerm(p));
}
bool Yap_Warning(const char *s, ...) {
CACHE_REGS
va_list ap;
PredEntry *pred;
bool rc;
Term ts[2];
const char *fmt;
char tmpbuf[MAXPATHLEN];
yap_error_number err;
LOCAL_DoingUndefp = true;
if (LOCAL_PrologMode & InErrorMode && (err = LOCAL_ActiveError->errorNo)) {
fprintf(stderr, "%% Warning %s WITHIN ERROR %s %s\n", s,
Yap_errorClassName(Yap_errorClass(err)), Yap_errorName(err));
Yap_RestartYap(1);
}
LOCAL_PrologMode |= InErrorMode;
pred = RepPredProp(PredPropByFunc(FunctorPrintMessage,
PROLOG_MODULE)); // PROCEDURE_print_message2
va_start(ap, s);
fmt = va_arg(ap, char *);
if (fmt != NULL) {
#if HAVE_VSNPRINTF
vsnprintf(tmpbuf, MAXPATHLEN - 1, fmt, ap);
#else
(void)vsprintf(tmpbuf, fmt, ap);
#endif
} else {
return false;
}
va_end(ap);
if (pred->OpcodeOfPred == UNDEF_OPCODE || pred->OpcodeOfPred == FAIL_OPCODE) {
fprintf(stderr, "warning message: %s\n", tmpbuf);
LOCAL_DoingUndefp = false;
LOCAL_PrologMode &= ~InErrorMode;
return false;
}
ts[1] = MkAtomTerm(AtomWarning);
ts[0] = MkAtomTerm(Yap_LookupAtom(tmpbuf));
rc = Yap_execute_pred(pred, ts, true PASS_REGS);
LOCAL_PrologMode &= ~InErrorMode;
return rc;
}
bool Yap_Warning(const char *s, ...) {
CACHE_REGS
va_list ap;
PredEntry *pred;
bool rc;
Term ts[2];
const char *format;
char tmpbuf[MAXPATHLEN];
if (LOCAL_within_print_message) {
/* error within error */
fprintf(stderr, "%% WARNING WITHIN WARNING\n");
Yap_RestartYap(1);
}
LOCAL_DoingUndefp = true;
LOCAL_within_print_message = true;
pred = RepPredProp(PredPropByFunc(FunctorPrintMessage,
PROLOG_MODULE)); // PROCEDURE_print_message2
va_start(ap, s);
format = va_arg(ap, char *);
if (format != NULL) {
#if HAVE_VSNPRINTF
vsnprintf(tmpbuf, MAXPATHLEN - 1, format, ap);
#else
(void)vsprintf(tmpbuf, format, ap);
#endif
} else
return false;
va_end(ap);
if (pred->OpcodeOfPred == UNDEF_OPCODE||
pred->OpcodeOfPred == FAIL_OPCODE) {
fprintf(stderr, "warning message: %s\n", tmpbuf);
LOCAL_DoingUndefp = false;
LOCAL_within_print_message = false;
return false;
}
ts[1] = MkAtomTerm(AtomWarning);
ts[0] = MkAtomTerm(Yap_LookupAtom(tmpbuf));
rc = Yap_execute_pred(pred, ts, true PASS_REGS);
return rc;
}
void
Yap_PrintPredName( PredEntry *ap )
{
CACHE_REGS
Term tmod = ap->ModuleOfPred;
if (!tmod) tmod = TermProlog;
#if THREADS
Yap_DebugPlWrite(MkIntegerTerm(worker_id));
Yap_DebugPutc(LOCAL_c_error_stream,' ');
#endif
Yap_DebugPutc(LOCAL_c_error_stream,'>');
Yap_DebugPutc(LOCAL_c_error_stream,'\t');
Yap_DebugPlWrite(tmod);
Yap_DebugPutc(LOCAL_c_error_stream,':');
if (ap->ModuleOfPred == IDB_MODULE) {
Term t = Deref(ARG1);
if (IsAtomTerm(t)) {
Yap_DebugPlWrite(t);
} else if (IsIntegerTerm(t)) {
Yap_DebugPlWrite(t);
} else {
Functor f = FunctorOfTerm(t);
Atom At = NameOfFunctor(f);
Yap_DebugPlWrite(MkAtomTerm(At));
Yap_DebugPutc(LOCAL_c_error_stream,'/');
Yap_DebugPlWrite(MkIntegerTerm(ArityOfFunctor(f)));
}
} else {
if (ap->ArityOfPE == 0) {
Atom At = (Atom)ap->FunctorOfPred;
Yap_DebugPlWrite(MkAtomTerm(At));
} else {
Functor f = ap->FunctorOfPred;
Atom At = NameOfFunctor(f);
Yap_DebugPlWrite(MkAtomTerm(At));
Yap_DebugPutc(LOCAL_c_error_stream,'/');
Yap_DebugPlWrite(MkIntegerTerm(ArityOfFunctor(f)));
}
}
Yap_DebugPutc(LOCAL_c_error_stream,'\n');
}
YAPAtomTerm::YAPAtomTerm(wchar_t *s): YAPTerm() { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.w = s;
inp.type = YAP_STRING_WCHARS;
out.type = YAP_STRING_ATOM;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
mk ( MkAtomTerm(out.val.a) );
else t = 0L;
RECOVER_H();
}
bool Yap_dup_op(OpEntry *op, ModEntry *she)
{
AtomEntry *ae = RepAtom(op->OpName);
OpEntry *info = (OpEntry *)Yap_AllocAtomSpace(sizeof(OpEntry));
if (!info)
return false;
memcpy(info, op, sizeof(OpEntry));
info->NextForME =she->OpForME;
she->OpForME = info;
info->OpModule = MkAtomTerm(she->AtomOfME);
AddPropToAtom(ae, AbsOpProp(info));
INIT_RWLOCK(info->OpRWLock);
return true;
}
static Int
p_compare(void)
{ /* compare(?Op,?T1,?T2) */
Int r = compare(Deref(ARG2), Deref(ARG3));
Atom p;
if (r < 0)
p = AtomLT;
else if (r > 0)
p = AtomGT;
else
p = AtomEQ;
return Yap_unify_constant(ARG1, MkAtomTerm(p));
}
YAPAtomTerm::YAPAtomTerm(char s[]) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.enc = LOCAL_encoding;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_ATOM;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
mk(MkAtomTerm(out.val.a));
else
t = 0L;
RECOVER_H();
}
YAPAtomTerm::YAPAtomTerm(char *s, size_t len) { // build string
BACKUP_H();
CACHE_REGS
seq_tv_t inp, out;
inp.val.c = s;
inp.type = YAP_STRING_CHARS;
out.type = YAP_STRING_ATOM|YAP_STRING_NCHARS|YAP_STRING_TRUNC;
out.sz = len;
out.max = len;
if (Yap_CVT_Text(&inp, &out PASS_REGS))
mk ( MkAtomTerm(out.val.a) );
else t = 0L;
RECOVER_H();
}
static bool
has_encoding(int sno,
Term t2 USES_REGS) { /* '$set_output'(+Stream,-ErrorMessage) */
if (!IsVarTerm(t2) && !(isatom(t2))) {
return FALSE;
}
if (0 && IsAtomTerm(t2)) {
encoding_t e = enc_id(RepAtom(AtomOfTerm(t2))->StrOfAE);
GLOBAL_Stream[sno].encoding = e;
return true;
} else {
const char *s = enc_name(LOCAL_encoding);
return Yap_unify(t2, MkAtomTerm(Yap_LookupAtom(s)));
}
}
static int
store_specs(int new_worker_id, UInt ssize, UInt tsize, UInt sysize, Term *tpgoal, Term *tpdetach, Term *tpexit)
{
CACHE_REGS
UInt pm; /* memory to be requested */
Term tmod;
Term tdetach, tgoal;
if (tsize < MinTrailSpace)
tsize = MinTrailSpace;
if (ssize < MinStackSpace)
ssize = MinStackSpace;
REMOTE_ThreadHandle(new_worker_id).ssize = ssize;
REMOTE_ThreadHandle(new_worker_id).tsize = tsize;
REMOTE_ThreadHandle(new_worker_id).sysize = sysize;
REMOTE_c_input_stream(new_worker_id) = LOCAL_c_input_stream;
REMOTE_c_output_stream(new_worker_id) = LOCAL_c_output_stream;
REMOTE_c_error_stream(new_worker_id) = LOCAL_c_error_stream;
pm = (ssize + tsize)*1024;
if (!(REMOTE_ThreadHandle(new_worker_id).stack_address = malloc(pm))) {
return FALSE;
}
REMOTE_ThreadHandle(new_worker_id).tgoal =
Yap_StoreTermInDB(Deref(*tpgoal),7);
REMOTE_ThreadHandle(new_worker_id).cmod =
CurrentModule;
tdetach = Deref(*tpdetach);
if (IsVarTerm(tdetach)){
REMOTE_ThreadHandle(new_worker_id).tdetach =
MkAtomTerm(AtomFalse);
} else {
REMOTE_ThreadHandle(new_worker_id).tdetach =
tdetach;
}
tgoal = Yap_StripModule(Deref(*tpexit), &tmod);
REMOTE_ThreadHandle(new_worker_id).texit_mod = tmod;
REMOTE_ThreadHandle(new_worker_id).texit =
Yap_StoreTermInDB(tgoal,7);
REMOTE_ThreadHandle(new_worker_id).local_preds =
NULL;
REMOTE_ThreadHandle(new_worker_id).start_of_timesp =
NULL;
REMOTE_ThreadHandle(new_worker_id).last_timep =
NULL;
REMOTE_ScratchPad(new_worker_id).ptr =
NULL;
return TRUE;
}
PL_unify_blob(term_t t, void *blob, size_t len, PL_blob_t *type)
{
CACHE_REGS
AtomEntry *ae;
if (!blob)
return FALSE;
ae = lookupBlob(blob, len, type);
if (!ae) {
return FALSE;
}
if (type->acquire) {
type->acquire(AtomToSWIAtom(AbsAtom(ae)));
}
return Yap_unify(Yap_GetFromSlot(t PASS_REGS), MkAtomTerm(AbsAtom(ae)));
}
Term
Yap_MkApplTerm(Functor f, unsigned int n, register Term *a)
/* build compound term with functor f and n
* args a */
{
CACHE_REGS
CELL *t = HR;
if (n == 0)
return (MkAtomTerm(NameOfFunctor(f)));
if (f == FunctorList)
return MkPairTerm(a[0], a[1]);
*HR++ = (CELL) f;
while (n--)
*HR++ = (CELL) * a++;
return (AbsAppl(t));
}
static Term
get_matrix_element(Term t1, Term t2 USES_REGS)
{
if (!IsPairTerm(t2)) {
if (t2 == MkAtomTerm(AtomLength)) {
Int sz = 1;
while (IsApplTerm(t1)) {
Functor f = FunctorOfTerm(t1);
if (NameOfFunctor(f) != AtomNil) {
return MkIntegerTerm(sz);
}
sz *= ArityOfFunctor(f);
t1 = ArgOfTerm(1, t1);
}
return MkIntegerTerm(sz);
}
Yap_ArithError(TYPE_ERROR_EVALUABLE, t2, "X is Y^[A]");
return FALSE;
}
while (IsPairTerm(t2)) {
Int indx;
Term indxt = Eval(HeadOfTerm(t2) PASS_REGS);
if (!IsIntegerTerm(indxt)) {
Yap_ArithError(TYPE_ERROR_EVALUABLE, t2, "X is Y^[A]");
return FALSE;
}
indx = IntegerOfTerm(indxt);
if (!IsApplTerm(t1)) {
Yap_ArithError(TYPE_ERROR_EVALUABLE, t1, "X is Y^[A]");
return FALSE;
} else {
Functor f = FunctorOfTerm(t1);
if (ArityOfFunctor(f) < indx) {
Yap_ArithError(TYPE_ERROR_EVALUABLE, t1, "X is Y^[A]");
return FALSE;
}
}
t1 = ArgOfTerm(indx, t1);
t2 = TailOfTerm(t2);
}
if (t2 != TermNil) {
Yap_ArithError(TYPE_ERROR_EVALUABLE, t2, "X is Y^[A]");
return FALSE;
}
return Eval(t1 PASS_REGS);
}
/** @pred prompt(- _A_,+ _B_)
Changes YAP input prompt from _A_ to _B_, active on *next* standard input
interaction.
*/
static Int prompt(USES_REGS1) { /* prompt(Old,New) */
Term t = Deref(ARG2);
Atom a;
if (!Yap_unify_constant(ARG1, MkAtomTerm(LOCAL_AtPrompt)))
return (FALSE);
if (IsVarTerm(t) || !IsAtomTerm(t))
return (FALSE);
a = AtomOfTerm(t);
if (strlen(RepAtom(a)->StrOfAE) > MAX_PROMPT) {
Yap_Error(SYSTEM_ERROR_INTERNAL, t, "prompt %s is too long",
RepAtom(a)->StrOfAE);
return false;
}
strncpy(LOCAL_Prompt, (char *)RepAtom(LOCAL_AtPrompt)->StrOfAE, MAX_PROMPT);
LOCAL_AtPrompt = a;
return (TRUE);
}
/*
* YAP_FindExecutable(argv[0]) should be called on yap initialization to
* locate the executable of Yap
*/
void
Yap_FindExecutable(char *name)
{
register char *cp, *cp2;
struct stat stbuf;
cp = (char *)getenv("PATH");
if (cp == NULL)
cp = ".:/usr/ucb:/bin:/usr/bin:/usr/local/bin";
if (*Yap_argv[0] == '/') {
if (oktox(Yap_argv[0])) {
strcpy(Yap_FileNameBuf, Yap_argv[0]);
Yap_TrueFileName(Yap_FileNameBuf, YapExecutable, TRUE);
return;
}
}
if (*cp == ':')
cp++;
for (; *cp;) {
/*
* copy over current directory and then append
* argv[0]
*/
for (cp2 = Yap_FileNameBuf; (*cp) != 0 && (*cp) != ':';)
*cp2++ = *cp++;
*cp2++ = '/';
strcpy(cp2, Yap_argv[0]);
if (*cp)
cp++;
if (!oktox(Yap_FileNameBuf))
continue;
Yap_TrueFileName(Yap_FileNameBuf, YapExecutable, TRUE);
return;
}
/* one last try for dual systems */
strcpy(Yap_FileNameBuf, Yap_argv[0]);
Yap_TrueFileName(Yap_FileNameBuf, YapExecutable, TRUE);
if (oktox(YapExecutable))
return;
else
Yap_Error(SYSTEM_ERROR,MkAtomTerm(Yap_LookupAtom(YapExecutable)),
"cannot find file being executed");
}
static void
kill_thread_engine (int wid, int always_die)
{
Prop p0 = AbsPredProp(REMOTE_ThreadHandle(wid).local_preds);
GlobalEntry *gl = REMOTE_GlobalVariables(wid);
REMOTE_ThreadHandle(wid).local_preds = NIL;
REMOTE_GlobalVariables(wid) = NULL;
/* kill all thread local preds */
while(p0) {
PredEntry *ap = RepPredProp(p0);
p0 = ap->NextOfPE;
Yap_Abolish(ap);
Yap_FreeCodeSpace((char *)ap);
}
while (gl) {
gl->global = TermFoundVar;
gl = gl->NextGE;
}
Yap_KillStacks(wid);
REMOTE_ActiveSignals(wid) = 0L;
if (REMOTE_ScratchPad(wid).ptr)
free(REMOTE_ScratchPad(wid).ptr);
REMOTE_ThreadHandle(wid).current_yaam_regs = NULL;
if (REMOTE_ThreadHandle(wid).start_of_timesp)
free(REMOTE_ThreadHandle(wid).start_of_timesp);
if (REMOTE_ThreadHandle(wid).last_timep)
free(REMOTE_ThreadHandle(wid).last_timep);
if (REMOTE_ThreadHandle(wid).texit) {
Yap_FreeCodeSpace((ADDR)REMOTE_ThreadHandle(wid).texit);
}
/* FreeCodeSpace requires LOCAL requires yaam_regs */
free(REMOTE_ThreadHandle(wid).default_yaam_regs);
REMOTE_ThreadHandle(wid).default_yaam_regs = NULL;
LOCK(GLOBAL_ThreadHandlesLock);
if (REMOTE_ThreadHandle(wid).tdetach == MkAtomTerm(AtomTrue) ||
always_die) {
REMOTE_ThreadHandle(wid).zombie = FALSE;
REMOTE_ThreadHandle(wid).in_use = FALSE;
DEBUG_TLOCK_ACCESS(1, wid);
pthread_mutex_unlock(&(REMOTE_ThreadHandle(wid).tlock));
}
UNLOCK(GLOBAL_ThreadHandlesLock);
}
bool Yap_PrintWarning(Term twarning) {
CACHE_REGS
PredEntry *pred = RepPredProp(PredPropByFunc(
FunctorPrintMessage, PROLOG_MODULE)); // PROCEDURE_print_message2;
if (twarning)
__android_log_print(ANDROID_LOG_INFO, "YAPDroid ", " warning(%s)",
Yap_TermToBuffer(twarning, Quote_illegal_f | Ignore_ops_f | Handle_cyclics_f));
Term cmod = (CurrentModule == PROLOG_MODULE ? TermProlog : CurrentModule);
bool rc;
Term ts[2], err;
if (twarning && LOCAL_PrologMode & InErrorMode &&
LOCAL_ActiveError->errorClass != WARNING &&
(err = LOCAL_ActiveError->errorNo) ) {
fprintf(stderr, "%% Warning %s while processing error: %s %s\n",
Yap_TermToBuffer(twarning,
Quote_illegal_f | Ignore_ops_f),
Yap_errorClassName(Yap_errorClass(err)), Yap_errorName(err));
return false;
}
LOCAL_PrologMode |= InErrorMode;
if (pred->OpcodeOfPred == UNDEF_OPCODE || pred->OpcodeOfPred == FAIL_OPCODE) {
fprintf(stderr, "%s:%ld/* d:%d warning */:\n",
LOCAL_ActiveError->errorFile,
LOCAL_ActiveError->errorLine, 0 );
if (!twarning)
twarning = Yap_MkFullError();
Yap_DebugPlWriteln(twarning);
LOCAL_DoingUndefp = false;
LOCAL_PrologMode &= ~InErrorMode;
CurrentModule = cmod;
return false;
}
if (!twarning)
twarning = Yap_MkFullError();
ts[1] = twarning;
ts[0] = MkAtomTerm(AtomWarning);
rc = Yap_execute_pred(pred, ts, true PASS_REGS);
LOCAL_within_print_message = false;
LOCAL_PrologMode &= ~InErrorMode;
return rc;
}
bool
Yap_FetchStreamAlias (int sno, Term t2 USES_REGS)
{
if (IsVarTerm(t2)) {
Atom at = FetchAlias(sno);
if (at == NULL)
return false;
else {
return Yap_unify_constant(t2, MkAtomTerm(at));
}
} else if (IsAtomTerm(t2)) {
Atom at = AtomOfTerm(t2);
return ExistsAliasForStream(sno,at);
} else {
Yap_Error(TYPE_ERROR_ATOM, t2, "stream_property(_,alias( ))");
return false;
}
}
char *Yap_blob_to_string(AtomEntry *ref, const char *s0, size_t sz) {
// int rc;
char *s = (char *)s0;
#if HAVE_FMEMOPEN
blob_type_t *type = RepBlobProp(ref->PropsOfAE)->blob_type;
if (type->write) {
FILE *f = fmemopen(s, sz, "w");
if (f == NULL) {
// could not find stream;
return NULL;
}
Atom at = AbsAtom(ref);
int rc = type->write(f, at, 0);
if (rc < 0) {
Yap_Error(EVALUATION_ERROR_UNDEFINED, MkAtomTerm(at),
"failure in user-defined blob to string code");
}
fclose(f); // return the final result.
return s;
} else {
#endif
#if __APPLE__
size_t sz0 = strlcpy(s, (char *)RepAtom(AtomSWIStream)->StrOfAE, sz);
#else
size_t sz0;
char *f = (char *)memcpy(s, (char *)RepAtom(AtomSWIStream)->StrOfAE, sz);
f[0] = '\0';
sz0 = f - s;
#endif
s = s + sz0;
sz -= sz0;
#if defined(__linux__) || defined(__APPLE__)
snprintf(s + strlen(s), sz0, "(%p)", ref);
#else
snprintf(s + strlen(s), sz0, "(0x%p)", ref);
#endif
return s;
#if HAVE_FMEMOPEN
}
return NULL;
#endif
}
Term
Yap_MkNewApplTerm(Functor f, unsigned int n)
/* build compound term with functor f and n
* args a */
{
CACHE_REGS
CELL *t = HR;
if (n == 0)
return (MkAtomTerm(NameOfFunctor(f)));
if (f == FunctorList) {
RESET_VARIABLE(HR);
RESET_VARIABLE(HR+1);
HR+=2;
return (AbsPair(t));
}
*HR++ = (CELL) f;
while (n--) {
RESET_VARIABLE(HR);
HR++;
}
return (AbsAppl(t));
}
/// @memberof between/3
static Int
init_between( USES_REGS1 )
{
Term t1 = Deref(ARG1);
Term t2 = Deref(ARG2);
if (IsVarTerm(t1)) {
Yap_EvalError(INSTANTIATION_ERROR, t1, "between/3");
return FALSE;
}
if (IsVarTerm(t2)) {
Yap_EvalError(INSTANTIATION_ERROR, t1, "between/3");
return FALSE;
}
if (!IsIntegerTerm(t1) &&
!IsBigIntTerm(t1)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t1, "between/3");
return FALSE;
}
if (!IsIntegerTerm(t2) &&
!IsBigIntTerm(t2) &&
t2 != MkAtomTerm(AtomInf) &&
t2 != MkAtomTerm(AtomInfinity)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t2, "between/3");
return FALSE;
}
if (IsIntegerTerm(t1) && IsIntegerTerm(t2)) {
Int i1 = IntegerOfTerm(t1);
Int i2 = IntegerOfTerm(t2);
Term t3;
t3 = Deref(ARG3);
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3)) {
if (!IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
cut_fail();
} else {
Int i3 = IntegerOfTerm(t3);
if (i3 >= i1 && i3 <= i2)
cut_succeed();
cut_fail();
}
}
if (i1 > i2) cut_fail();
if (i1 == i2) {
Yap_unify(ARG3, t1);
cut_succeed();
}
} else if (IsIntegerTerm(t1) && IsAtomTerm(t2)) {
Int i1 = IntegerOfTerm(t1);
Term t3;
t3 = Deref(ARG3);
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3)) {
if (!IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
cut_fail();
} else {
Int i3 = IntegerOfTerm(t3);
if (i3 >= i1)
cut_succeed();
cut_fail();
}
}
} else {
Term t3 = Deref(ARG3);
Int cmp;
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3) && !IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
if (Yap_acmp(t3, t1 PASS_REGS) >= 0 && Yap_acmp(t2,t3 PASS_REGS) >= 0 && P != FAILCODE)
cut_succeed();
cut_fail();
}
cmp = Yap_acmp(t1, t2 PASS_REGS);
if (cmp > 0) cut_fail();
if (cmp == 0) {
Yap_unify(ARG3, t1);
cut_succeed();
}
}
EXTRA_CBACK_ARG(3,1) = t1;
EXTRA_CBACK_ARG(3,2) = t2;
return cont_between( PASS_REGS1 );
}