static Int
p_thread_self( USES_REGS1 )
{
if (pthread_getspecific(Yap_yaamregs_key) == NULL)
return Yap_unify(MkIntegerTerm(-1), ARG1);
return Yap_unify(MkIntegerTerm(worker_id), ARG1);
}
static Int
p_thread_sleep( USES_REGS1 )
{
UInt time = IntegerOfTerm(Deref(ARG1));
#if HAVE_NANOSLEEP
UInt ntime = IntegerOfTerm(Deref(ARG2));
struct timespec req, oreq ;
req.tv_sec = time;
req.tv_nsec = ntime;
if (nanosleep(&req, &oreq)) {
#if HAVE_STRERROR
Yap_Error(OPERATING_SYSTEM_ERROR, ARG1, "%s in thread_sleep/1", strerror(errno));
#else
Yap_Error(OPERATING_SYSTEM_ERROR, ARG1, "error %d in thread_sleep/1", errno);
#endif
return FALSE;
}
return Yap_unify(ARG3,MkIntegerTerm(oreq.tv_sec)) &&
Yap_unify(ARG4,MkIntegerTerm(oreq.tv_nsec));
#elif HAVE_SLEEP
UInt rtime;
if ((rtime = sleep(time)) < 0) {
#if HAVE_STRERROR
Yap_Error(OPERATING_SYSTEM_ERROR, ARG1, "%s in thread_sleep/1", strerror(errno));
#else
Yap_Error(OPERATING_SYSTEM_ERROR, ARG1, "error %d in thread_sleep/1", errno);
#endif
}
return Yap_unify(ARG3,MkIntegerTerm(rtime)) &&
Yap_unify(ARG4,MkIntTerm(0L));
#else
Yap_Error(OPERATING_SYSTEM_ERROR, ARG1, "no support for thread_sleep/1 in this YAP configuration");
#endif
}
static Int
p_thread_new_tid( USES_REGS1 )
{
int new_worker = allocate_new_tid();
if (new_worker == -1) {
Yap_Error(RESOURCE_ERROR_MAX_THREADS, MkIntegerTerm(MAX_THREADS), "");
return FALSE;
}
return Yap_unify(MkIntegerTerm(new_worker), ARG1);
}
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 Int
p_inform_agc(void)
{
Term tn = MkIntegerTerm(tot_agc_time);
Term tt = MkIntegerTerm(agc_calls);
Term ts = MkIntegerTerm(tot_agc_recovered);
return
Yap_unify(tn, ARG2) &&
Yap_unify(tt, ARG1) &&
Yap_unify(ts, ARG3);
}
static Int
p_inform_agc(USES_REGS1)
{
Term tn = MkIntegerTerm(GLOBAL_tot_agc_time);
Term tt = MkIntegerTerm(GLOBAL_agc_calls);
Term ts = MkIntegerTerm(GLOBAL_tot_agc_recovered);
return
Yap_unify(tn, ARG2) &&
Yap_unify(tt, ARG1) &&
Yap_unify(ts, ARG3);
}
static Term
float_to_int(Float v)
{
#if USE_GMP
Int i = (Int)v;
if (i-v == 0.0) {
return MkIntegerTerm(i);
} else {
return Yap_gmp_float_to_big(v);
}
#else
return MkIntegerTerm(v);
#endif
}
static Int p_freeze_choice_point( USES_REGS1 ) {
if (IsVarTerm(Deref(ARG1))) {
Int offset = freeze_current_cp();
return Yap_unify(ARG1, MkIntegerTerm(offset));
}
return (FALSE);
}
Term
Yap_MkBigIntTerm(MP_INT *big)
{
CACHE_REGS
Int nlimbs;
MP_INT *dst = (MP_INT *)(H+2);
CELL *ret = H;
Int bytes;
if (mpz_fits_slong_p(big)) {
long int out = mpz_get_si(big);
return MkIntegerTerm((Int)out);
}
// bytes = big->_mp_alloc * sizeof(mp_limb_t);
// nlimbs = ALIGN_YAPTYPE(bytes,CELL)/CellSize;
// this works, but it shouldn't need to do this...
nlimbs = big->_mp_alloc;
bytes = nlimbs*sizeof(CELL);
if (nlimbs > (ASP-ret)-1024) {
return TermNil;
}
H[0] = (CELL)FunctorBigInt;
H[1] = BIG_INT;
dst->_mp_size = big->_mp_size;
dst->_mp_alloc = nlimbs*(CellSize/sizeof(mp_limb_t));
memmove((void *)(dst+1), (const void *)(big->_mp_d), bytes);
H = (CELL *)(dst+1)+nlimbs;
H[0] = EndSpecials;
H++;
return AbsAppl(ret);
}
static Int /* mpe_create_event(?Event) */
p_create_event()
{
Int event_id;
event_id = MPE_Log_get_event_number();
return Yap_unify(ARG1, MkIntegerTerm(event_id));
}
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);
}
static Int
p_thread_zombie_self( USES_REGS1 )
{
/* make sure the lock is available */
if (pthread_getspecific(Yap_yaamregs_key) == NULL)
return Yap_unify(MkIntegerTerm(-1), ARG1);
pthread_mutex_lock(&(LOCAL_ThreadHandle.tlock));
DEBUG_TLOCK_ACCESS(4, worker_id);
if (LOCAL_ActiveSignals &= YAP_ITI_SIGNAL) {
DEBUG_TLOCK_ACCESS(5, worker_id);
pthread_mutex_unlock(&(LOCAL_ThreadHandle.tlock));
return FALSE;
}
// fprintf(stderr," -- %d\n", worker_id);
LOCAL_ThreadHandle.in_use = FALSE;
LOCAL_ThreadHandle.zombie = TRUE;
return Yap_unify(MkIntegerTerm(worker_id), ARG1);
}
static Int
p_thread_status_unlock( USES_REGS1 )
{
/* make sure the lock is available */
if (pthread_getspecific(Yap_yaamregs_key) == NULL)
return FALSE;
pthread_mutex_unlock(&(LOCAL_ThreadHandle.tlock_status));
return Yap_unify(MkIntegerTerm(worker_id), ARG1);
}
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');
}
static Int file_size(USES_REGS1) {
int rc;
Int sno = Yap_CheckStream(
ARG1, (Input_Stream_f | Output_Stream_f | Socket_Stream_f),
"file_size/2");
if (sno < 0)
return (FALSE);
VFS_t *vfs;
char *s = RepAtom(GLOBAL_Stream[sno].name)->StrOfAE;
if (!s) return false;
if ((vfs = vfs_owner(s))) {
vfs_stat st;
vfs->stat(vfs, s, &st);
UNLOCK(GLOBAL_Stream[sno].streamlock);
return Yap_unify_constant(ARG2, MkIntegerTerm(st.st_size));
}
if (GLOBAL_Stream[sno].status & Seekable_Stream_f &&
!(GLOBAL_Stream[sno].status &
(InMemory_Stream_f | Socket_Stream_f | Pipe_Stream_f))) {
// there
struct stat file_stat;
if ((rc = fstat(fileno(GLOBAL_Stream[sno].file), &file_stat)) < 0) {
UNLOCK(GLOBAL_Stream[sno].streamlock);
if (rc == ENOENT)
PlIOError(EXISTENCE_ERROR_SOURCE_SINK, ARG1, "%s in file_size",
strerror(errno));
else
PlIOError(PERMISSION_ERROR_INPUT_STREAM, ARG1, "%s in file_size",
strerror(errno));
return false;
}
// and back again
UNLOCK(GLOBAL_Stream[sno].streamlock);
return Yap_unify_constant(ARG2, MkIntegerTerm(file_stat.st_size));
}
UNLOCK(GLOBAL_Stream[sno].streamlock);
return false;
}
static Int lines_in_file(USES_REGS1) {
Int sno = Yap_CheckStream(ARG1, (Input_Stream_f), "lines_in_file/2");
if (sno < 0)
return false;
FILE *f = GLOBAL_Stream[sno].file;
size_t count = 0;
int ch;
#if __ANDROID__
#define getw getc
#endif
if (!f)
return false;
while ((ch = getw(f)) >= 0) {
if (ch == '\n') {
count++;
}
}
return Yap_unify(ARG2, MkIntegerTerm(count));
}
static Int
p_agc_threshold(void)
{
Term t = Deref(ARG1);
if (IsVarTerm(t)) {
return Yap_unify(ARG1, MkIntegerTerm(AGcThreshold));
} else if (!IsIntegerTerm(t)) {
Yap_Error(TYPE_ERROR_INTEGER,t,"prolog_flag/2 agc_margin");
return FALSE;
} else {
Int i = IntegerOfTerm(t);
if (i<0) {
Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,t,"prolog_flag/2 agc_margin");
return FALSE;
} else {
AGcThreshold = i;
return TRUE;
}
}
}
static Int
msb(Int inp) /* calculate the most significant bit for an integer */
{
/* the obvious solution: do it by using binary search */
Int out = 0;
int off = sizeof(CELL)*4;
if (inp < 0) {
return Yap_ArithError(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(inp),
"msb/1 received %d", inp);
}
while (off) {
Int limit = ((CELL)1) << (off);
if (inp >= limit) {
out += off;
inp >>= off;
}
off >>= 1;
}
static Int
msb(Int inp USES_REGS) /* calculate the most significant bit for an integer */
{
/* the obvious solution: do it by using binary search */
Int out = 0;
if (inp < 0) {
return Yap_ArithError(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, MkIntegerTerm(inp),
"msb/1 received %d", inp);
}
#if HAVE__BUILTIN_FFSLL
out = __builtin_ffsll(inp);
#elif HAVE_FFSLL
out = ffsll(inp);
#else
if (inp==0)
return 0L;
#if SIZEOF_INT_P == 8
if (inp & ((CELL)0xffffffffLL << 32)) {inp >>= 32; out += 32;}
static Int
p_stream_to_codes(void)
{
int sno = Yap_CheckStream (ARG1, Input_Stream_f, "read_line_to_codes/2");
CELL *HBASE = H;
CELL *h0 = &ARG4;
if (sno < 0)
return FALSE;
while (!(Stream[sno].status & Eof_Stream_f)) {
/* skip errors */
Int ch = Stream[sno].stream_getc(sno);
Term t;
if (ch == EOFCHAR)
break;
t = MkIntegerTerm(ch);
h0[0] = AbsPair(H);
*H = t;
H+=2;
h0 = H-1;
if (H >= ASP-1024) {
RESET_VARIABLE(h0);
ARG4 = AbsPair(HBASE);
ARG5 = (CELL)h0;
if (!Yap_gcl((ASP-HBASE)*sizeof(CELL), 5, ENV, gc_P(P,CP))) {
Yap_Error(OUT_OF_STACK_ERROR, ARG1, "read_stream_to_codes/3");
return FALSE;
}
/* build a legal term again */
h0 = (CELL *)ARG5;
HBASE = RepPair(ARG4);
}
}
UNLOCK(Stream[sno].streamlock);
if (H == HBASE)
return Yap_unify(ARG2,ARG3);
RESET_VARIABLE(H-1);
Yap_unify(H[-1],ARG3);
return Yap_unify(AbsPair(HBASE),ARG2);
}
static Int read_stream_to_codes(USES_REGS1) {
int sno = Yap_CheckStream(ARG1, Input_Stream_f,
"reaMkAtomTerm (AtomEofd_line_to_codes/2");
CELL *HBASE = HR;
CELL *h0 = &ARG4;
if (sno < 0)
return FALSE;
while (!(GLOBAL_Stream[sno].status & Eof_Stream_f)) {
/* skip errors */
Int ch = GLOBAL_Stream[sno].stream_getc(sno);
Term t;
if (ch == EOFCHAR)
break;
t = MkIntegerTerm(ch);
h0[0] = AbsPair(HR);
*HR = t;
HR += 2;
h0 = HR - 1;
yhandle_t news, news1, st = Yap_StartSlots();
if (HR >= ASP - 1024) {
RESET_VARIABLE(h0);
news = Yap_InitSlot(AbsPair(HBASE));
news1 = Yap_InitSlot((CELL)(h0));
if (!Yap_gcl((ASP - HBASE) * sizeof(CELL), 3, ENV, Yap_gcP())) {
Yap_Error(RESOURCE_ERROR_STACK, ARG1, "read_stream_to_codes/3");
return false;
}
/* build a legal term again */
h0 = (CELL *)(Yap_GetFromSlot(news1));
HBASE = RepPair(Yap_GetFromSlot(news));
}
Yap_CloseSlots(st);
}
UNLOCK(GLOBAL_Stream[sno].streamlock);
if (HR == HBASE)
return Yap_unify(ARG2, ARG3);
RESET_VARIABLE(HR - 1);
Yap_unify(HR[-1], ARG3);
return Yap_unify(AbsPair(HBASE), ARG2);
}
static Int
gcd(Int m11,Int m21 USES_REGS)
{
/* Blankinship algorithm, provided by Miguel Filgueiras */
Int m12=1, m22=0, k;
while (m11>0 && m21>0)
if (m11<m21) {
k = m21/m11; m21 -= k*m11; m22 -= k*m12;
} else {
k=m11/m21; m11 -= k*m21; m12 -= k*m22;
}
if (m11<0 || m21<0) { /* overflow? */
/* Oflow = 1; */
Yap_ArithError(EVALUATION_ERROR_INT_OVERFLOW, MkIntegerTerm(m11),
"gcd/2 with %d and %d", m11, m21);
return(1);
}
if (m11) return(m11);
return(m21);
}
Int gcdmult(Int m11,Int m21,Int *pm11) /* *pm11 gets multiplier of m11 */
{
Int m12=1, m22=0, k;
while (m11 && m21)
if (m11<m21) {
k = m21/m11; m21 -= k*m11; m22 -= k*m12;
} else {
k=m11/m21; m11 -= k*m21; m12 -= k*m22;
}
if (m11<0 || m21<0) { /* overflow? */
/* Oflow = 1; */
Yap_ArithError(EVALUATION_ERROR_INT_OVERFLOW, MkIntegerTerm(m11),
"gcdmult/2 with %d and %d", m11, m21);
return(1);
}
if (m11) {
*pm11 = m12; return(m11);
}
*pm11 = m22;
return(m21);
}
static Term
Eval(Term t USES_REGS)
{
if (IsVarTerm(t)) {
return Yap_ArithError(INSTANTIATION_ERROR,t,"in arithmetic");
} else if (IsNumTerm(t)) {
return t;
} else if (IsAtomTerm(t)) {
ExpEntry *p;
Atom name = AtomOfTerm(t);
if (EndOfPAEntr(p = RepExpProp(Yap_GetExpProp(name, 0)))) {
/* error */
Term ti[2];
/* error */
ti[0] = t;
ti[1] = MkIntTerm(0);
t = Yap_MkApplTerm(FunctorSlash, 2, ti);
return Yap_ArithError(TYPE_ERROR_EVALUABLE, t,
"atom %s in arithmetic expression",
RepAtom(name)->StrOfAE);
}
return Yap_eval_atom(p->FOfEE);
} else if (IsApplTerm(t)) {
Functor fun = FunctorOfTerm(t);
if (fun == FunctorString) {
const char *s = StringOfTerm(t);
if (s[1] == '\0')
return MkIntegerTerm(s[0]);
return Yap_ArithError(TYPE_ERROR_EVALUABLE, t,
"string in arithmetic expression");
} else if ((Atom)fun == AtomFoundVar) {
return Yap_ArithError(TYPE_ERROR_EVALUABLE, TermNil,
"cyclic term in arithmetic expression");
} else {
Int n = ArityOfFunctor(fun);
Atom name = NameOfFunctor(fun);
ExpEntry *p;
Term t1, t2;
if (EndOfPAEntr(p = RepExpProp(Yap_GetExpProp(name, n)))) {
Term ti[2];
/* error */
ti[0] = t;
ti[1] = MkIntegerTerm(n);
t = Yap_MkApplTerm(FunctorSlash, 2, ti);
return Yap_ArithError(TYPE_ERROR_EVALUABLE, t,
"functor %s/%d for arithmetic expression",
RepAtom(name)->StrOfAE,n);
}
if (p->FOfEE == op_power && p->ArityOfEE == 2) {
t2 = ArgOfTerm(2, t);
if (IsPairTerm(t2)) {
return get_matrix_element(ArgOfTerm(1, t), t2 PASS_REGS);
}
}
*RepAppl(t) = (CELL)AtomFoundVar;
t1 = Eval(ArgOfTerm(1,t) PASS_REGS);
if (t1 == 0L) {
*RepAppl(t) = (CELL)fun;
return FALSE;
}
if (n == 1) {
*RepAppl(t) = (CELL)fun;
return Yap_eval_unary(p->FOfEE, t1);
}
t2 = Eval(ArgOfTerm(2,t) PASS_REGS);
*RepAppl(t) = (CELL)fun;
if (t2 == 0L)
return FALSE;
return Yap_eval_binary(p->FOfEE,t1,t2);
}
} /* else if (IsPairTerm(t)) */ {
if (TailOfTerm(t) != TermNil) {
return Yap_ArithError(TYPE_ERROR_EVALUABLE, t,
"string must contain a single character to be evaluated as an arithmetic expression");
}
return Eval(HeadOfTerm(t) PASS_REGS);
}
}
static bool stream_line_number(
int sno, Term t2 USES_REGS) { /* '$set_output'(+Stream,-ErrorMessage) */
Term tout = StreamPosition(GLOBAL_Stream[sno].linecount);
return Yap_unify(t2, MkIntegerTerm(tout));
}
/**
* Syntax Error Handler
*
* @par tokptr: the sequence of tokens
* @par sno: the stream numbet
*
* Implicit arguments:
* +
*/
Term Yap_syntax_error(TokEntry *errtok, int sno) {
CACHE_REGS
Term info;
Term startline, errline, endline;
Term tf[4];
Term *tailp = tf + 3;
CELL *Hi = HR;
TokEntry *tok = LOCAL_tokptr;
Int cline = tok->TokPos;
startline = MkIntegerTerm(cline);
if (errtok != LOCAL_toktide) {
errtok = LOCAL_toktide;
}
LOCAL_Error_TYPE = YAP_NO_ERROR;
errline = MkIntegerTerm(errtok->TokPos);
if (LOCAL_ErrorMessage)
tf[0] = MkStringTerm(LOCAL_ErrorMessage);
else
tf[0] = MkStringTerm("");
while (tok) {
Term ts[2];
if (HR > ASP - 1024) {
errline = MkIntegerTerm(0);
endline = MkIntegerTerm(0);
/* for some reason moving this earlier confuses gcc on solaris */
HR = Hi;
break;
}
if (tok->TokPos != cline) {
*tailp = MkPairTerm(TermNewLine, TermNil);
tailp = RepPair(*tailp) + 1;
cline = tok->TokPos;
}
if (tok == errtok && tok->Tok != Error_tok) {
*tailp = MkPairTerm(MkAtomTerm(AtomError), TermNil);
tailp = RepPair(*tailp) + 1;
}
info = tok->TokInfo;
switch (tok->Tok) {
case Name_tok: {
Term t0[1];
if (info) {
t0[0] = MkAtomTerm((Atom)info);
} else {
t0[0] = TermNil;
}
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomAtom, 1), 1, t0);
} break;
case QuasiQuotes_tok: {
Term t0[2];
t0[0] = MkAtomTerm(Yap_LookupAtom("<QQ>"));
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomAtom, 1), 1, t0);
} break;
case WQuasiQuotes_tok: {
Term t0[2];
t0[0] = MkAtomTerm(Yap_LookupAtom("<WideQQ>"));
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomAtom, 1), 1, t0);
} break;
case Number_tok:
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomNumber, 1), 1, &(tok->TokInfo));
break;
case Var_tok: {
Term t[2];
VarEntry *varinfo = (VarEntry *)info;
t[0] = MkIntTerm(0);
t[1] = Yap_CharsToString(varinfo->VarRep, ENC_ISO_LATIN1 PASS_REGS);
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomGVar, 2), 2, t);
} break;
case String_tok: {
Term t0 =
Yap_CharsToTDQ((char *)info, CurrentModule, ENC_ISO_LATIN1 PASS_REGS);
if (!t0) {
return 0;
}
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomString, 1), 1, &t0);
} break;
case WString_tok: {
Term t0 = Yap_WCharsToTDQ((wchar_t *)info, CurrentModule PASS_REGS);
if (!t0)
return 0;
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomString, 1), 1, &t0);
} break;
case BQString_tok: {
Term t0 =
Yap_CharsToTBQ((char *)info, CurrentModule, ENC_ISO_LATIN1 PASS_REGS);
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomString, 1), 1, &t0);
} break;
case WBQString_tok: {
Term t0 = Yap_WCharsToTBQ((wchar_t *)info, CurrentModule PASS_REGS);
ts[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomString, 1), 1, &t0);
} break;
case Error_tok: {
ts[0] = MkAtomTerm(AtomError);
} break;
case eot_tok:
endline = MkIntegerTerm(tok->TokPos);
ts[0] = MkAtomTerm(Yap_LookupAtom("EOT"));
break;
case Ponctuation_tok: {
char s[2];
s[1] = '\0';
if ((info) == 'l') {
s[0] = '(';
} else {
s[0] = (char)info;
}
ts[0] = MkAtomTerm(Yap_LookupAtom(s));
}
}
tok = tok->TokNext;
if (!tok)
break;
*tailp = MkPairTerm(ts[0], TermNil);
tailp = RepPair(*tailp) + 1;
}
{
Term t[3];
t[0] = startline;
t[1] = errline;
t[2] = endline;
tf[1] = Yap_MkApplTerm(Yap_MkFunctor(AtomBetween, 3), 3, t);
}
/* 0: id */
/* 1: strat, error, end line */
/*2 msg */
/* file */
tf[2] = Yap_StreamUserName(sno);
clean_vars(LOCAL_VarTable);
clean_vars(LOCAL_AnonVarTable);
Term terr = Yap_MkApplTerm(FunctorSyntaxError, 4, tf);
Term tn[2];
tn[0] = Yap_MkApplTerm(FunctorShortSyntaxError, 1, &terr);
tn[1] = TermNil;
terr = Yap_MkApplTerm(FunctorError, 2, tn);
#if DEBUG
if (Yap_ExecutionMode == YAP_BOOT_MODE) {
fprintf(stderr, "SYNTAX ERROR while booting: ");
Yap_DebugPlWriteln(terr);
}
#endif
return terr;
}
/**
* Syntax Error Handler
*
* @par tokptr: the sequence of tokens
* @par sno: the stream numbet
*
* Implicit arguments:
* +
*/
static Term syntax_error(TokEntry *errtok, int sno, Term cmod) {
CACHE_REGS
Term startline, errline, endline;
Term tf[3];
Term tm;
Term *tailp = tf + 2;
CELL *Hi = HR;
TokEntry *tok = LOCAL_tokptr;
Int cline = tok->TokPos;
startline = MkIntegerTerm(cline);
endline = MkIntegerTerm(cline);
if (errtok != LOCAL_toktide) {
errtok = LOCAL_toktide;
}
LOCAL_Error_TYPE = YAP_NO_ERROR;
errline = MkIntegerTerm(errtok->TokPos);
if (LOCAL_ErrorMessage)
tm = MkStringTerm(LOCAL_ErrorMessage);
else
tm = MkStringTerm("syntax error");
while (tok) {
if (HR > ASP - 1024) {
errline = MkIntegerTerm(0);
endline = MkIntegerTerm(0);
/* for some reason moving this earlier confuses gcc on solaris */
HR = Hi;
break;
}
if (tok->TokPos != cline) {
*tailp = MkPairTerm(TermNewLine, TermNil);
tailp = RepPair(*tailp) + 1;
cline = tok->TokPos;
}
if (tok == errtok && tok->Tok != Error_tok) {
*tailp = MkPairTerm(MkAtomTerm(AtomError), TermNil);
tailp = RepPair(*tailp) + 1;
}
Term rep = Yap_tokRep(tok);
if (tok->TokNext) {
tok = tok->TokNext;
} else {
endline = MkIntegerTerm(tok->TokPos);
tok = NULL;
break;
}
*tailp = MkPairTerm(rep, TermNil);
tailp = RepPair(*tailp) + 1;
}
{
Term t[3];
t[0] = startline;
t[1] = errline;
t[2] = endline;
tf[0] = Yap_MkApplTerm(Yap_MkFunctor(AtomBetween, 3), 3, t);
}
/* 0: strat, error, end line */
/*2 msg */
/* 1: file */
tf[1] = Yap_StreamUserName(sno);
clean_vars(LOCAL_VarTable);
clean_vars(LOCAL_AnonVarTable);
Term terr = Yap_MkApplTerm(FunctorInfo3, 3, tf);
Term tn[2];
tn[0] = Yap_MkApplTerm(FunctorShortSyntaxError, 1, &tm);
tn[1] = terr;
terr = Yap_MkApplTerm(FunctorError, 2, tn);
#if DEBUG
if (Yap_ExecutionMode == YAP_BOOT_MODE) {
fprintf(stderr, "SYNTAX ERROR while booting: ");
Yap_DebugPlWriteln(terr);
}
#endif
return terr;
}
YAPTerm::YAPTerm(void *ptr) {
CACHE_REGS
mk(MkIntegerTerm((Int)ptr));
}
YAPIntegerTerm::YAPIntegerTerm(intptr_t i) {
CACHE_REGS Term tn = MkIntegerTerm(i);
mk(tn);
}
static Int time_file(USES_REGS1) {
Term tname = Deref(ARG1);
if (IsVarTerm(tname)) {
Yap_Error(INSTANTIATION_ERROR, tname, "access");
return FALSE;
} else if (!IsAtomTerm(tname)) {
Yap_Error(TYPE_ERROR_ATOM, tname, "access");
return FALSE;
} else {
const char *n = RepAtom(AtomOfTerm(tname))->StrOfAE;
VFS_t *vfs;
if ((vfs = vfs_owner(n))) {
vfs_stat s;
vfs->stat(vfs, n, &s);
return Yap_unify(ARG2, MkIntegerTerm(s.st_mtimespec.tv_sec));
}
#if __WIN32
FILETIME ft;
HANDLE hdl;
Term rc;
if ((hdl = CreateFile(n, 0, 0, NULL, OPEN_EXISTING, 0, 0)) == 0) {
Yap_WinError("in time_file");
return false;
}
if (GetFileTime(hdl, NULL, NULL, &ft) == 0) {
Yap_WinError("in time_file");
return false;
}
// Convert the last-write time to local time.
// FileTimeToSystemTime(&ftWrite, &stUTC);
// SystemTimeToTzSpecificLocalTime(NULL, &stUTC, &stLocal);
CloseHandle(hdl);
ULONGLONG qwResult;
// Copy the time into a quadword.
qwResult = (((ULONGLONG)ft.dwHighDateTime) << 32) + ft.dwLowDateTime;
#if SIZEOF_INT_P == 8
rc = MkIntegerTerm(qwResult);
#elif USE_GMP
char s[64];
MP_INT rop;
snprintf(s, 64, "%I64d", (long long int)n);
mpz_init_set_str(&rop, s, 10);
rc = Yap_MkBigIntTerm((void *)&rop PASS_REGS);
#else
rc = MkIntegerTerm(ft.dwHighDateTime);
#endif
return Yap_unify(ARG2, rc);
#elif HAVE_STAT
struct SYSTEM_STAT ss;
if (SYSTEM_STAT(n, &ss) != 0) {
/* ignore errors while checking a file */
return FALSE;
}
return Yap_unify(ARG2, MkIntegerTerm(ss.st_mtime));
#else
return FALSE;
#endif
}
}