diogo/yap-6.3
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use SWI flags.

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This commit is contained in:
Vítor Santos Costa 2011-03-26 15:17:17 +00:00
parent be3568d176
commit e03acef3f9
12 changed files with 481 additions and 185 deletions
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5
Makefile.in
View File

@ -211,6 +211,7 @@ IOLIB_SOURCES=$(srcdir)/packages/PLStream/pl-buffer.c $(srcdir)/packages/PLStrea
$(srcdir)/packages/PLStream/pl-glob.c \
$(srcdir)/packages/PLStream/pl-option.c \
$(srcdir)/packages/PLStream/pl-os.c \
$(srcdir)/packages/PLStream/pl-prologflag.c \
$(srcdir)/packages/PLStream/pl-privitf.c \
$(srcdir)/packages/PLStream/pl-read.c \
$(srcdir)/packages/PLStream/pl-rl.c \
@ -333,6 +334,7 @@ IOLIB_OBJECTS=pl-buffer.o pl-codelist.o pl-ctype.o pl-dtoa.o pl-error.o \
pl-glob.o pl-option.o \
pl-nt.o \
pl-os.o pl-privitf.o \
pl-prologflag.o \
pl-read.o \
pl-rl.o \
pl-stream.o pl-string.o pl-table.o \
@ -606,6 +608,9 @@ pl-os.o: $(srcdir)/packages/PLStream/pl-os.c config.h
pl-privitf.o: $(srcdir)/packages/PLStream/pl-privitf.c config.h
$(CC) -c $(CFLAGS) -I$(srcdir)/include -I$(srcdir) -I$(srcdir)/packages/PLStream @EXTRA_INCLUDES_FOR_WIN32@ $(srcdir)/packages/PLStream/pl-privitf.c -o $@
pl-prologflag.o: $(srcdir)/packages/PLStream/pl-prologflag.c config.h
$(CC) -c $(CFLAGS) -I$(srcdir)/include -I$(srcdir) -I$(srcdir)/packages/PLStream @EXTRA_INCLUDES_FOR_WIN32@ $(srcdir)/packages/PLStream/pl-prologflag.c -o $@
pl-rl.o: $(srcdir)/packages/PLStream/pl-rl.c config.h
$(CC) -c $(CFLAGS) -I$(srcdir)/include -I$(srcdir) -I$(srcdir)/packages/PLStream @EXTRA_INCLUDES_FOR_WIN32@ $(srcdir)/packages/PLStream/pl-rl.c -o $@

9
include/SWI-Prolog.h
View File

@ -340,6 +340,9 @@ UNICODE file functions.
#ifdef SIO_MAGIC /* defined from <SWI-Stream.h> */
#define FF_NOCREATE 0x4000 /* Fail if flag is non-existent */
#define FF_MASK 0xf000
/*******************************
* STREAM SUPPORT *
*******************************/
@ -567,6 +570,7 @@ extern X_API int PL_get_string(term_t, char **, size_t *);
extern X_API int PL_get_string_chars(term_t, char **, size_t *);
extern X_API record_t PL_record(term_t);
extern X_API int PL_recorded(record_t, term_t);
extern X_API record_t PL_duplicate_record(record_t);
extern X_API void PL_erase(record_t);
/* only partial implementation, does not guarantee export between different architectures and versions of YAP */
extern X_API char *PL_record_external(term_t, size_t *);
@ -628,7 +632,10 @@ readline overhead.
#define PL_DISPATCH_WAIT 1 /* Dispatch till input available */
#define PL_DISPATCH_INSTALLED 2 /* dispatch function installed? */
typedef int (*PL_dispatch_hook_t)(int fd);
extern X_API int PL_dispatch(int fd, int wait);
PL_EXPORT(PL_dispatch_hook_t) PL_dispatch_hook(PL_dispatch_hook_t);
PL_EXPORT(void) PL_add_to_protocol(const char *buf, size_t count);
PL_EXPORT(char *) PL_prompt_string(int fd);
PL_EXPORT(void) PL_write_prompt(int dowrite);
@ -639,8 +646,6 @@ PL_EXPORT(pl_wchar_t*) PL_atom_generator_w(const pl_wchar_t *pref,
size_t buflen,
int state);
typedef int (*PL_dispatch_hook_t)(int fd);
/*******************************
* WINDOWS MESSAGES *
*******************************/

34
library/dialect/swi/fli/swi.c
View File

@ -113,7 +113,7 @@ UserCPredicate(char *a, CPredicate def, unsigned long int arity, Term mod, int f
Term cm = CurrentModule;
/* fprintf(stderr,"doing %s:%s/%d\n", RepAtom(AtomOfTerm(mod))->StrOfAE, a,arity); */
CurrentModule = mod;
Yap_InitCPred(a, arity, def, UserCPredFlag);
Yap_InitCPred(a, arity, def, (UserCPredFlag|CArgsPredFlag|flags));
if (arity == 0) {
Atom at;
while ((at = Yap_LookupAtom(a)) == NULL) {
@ -136,7 +136,6 @@ UserCPredicate(char *a, CPredicate def, unsigned long int arity, Term mod, int f
f = Yap_MkFunctor(at, arity);
pe = RepPredProp(PredPropByFunc(f,mod));
}
pe->PredFlags |= (CArgsPredFlag|flags);
CurrentModule = cm;
}
@ -1880,6 +1879,16 @@ PL_recorded(record_t db, term_t ts)
return TRUE;
}
X_API record_t
PL_duplicate_record(record_t db)
{
CACHE_REGS
Term t = YAP_Recorded((void *)db);
if (t == ((CELL)0))
return FALSE;
return (record_t)YAP_Record(t);
}
X_API void
PL_erase(record_t db)
{
@ -2766,27 +2775,6 @@ X_API pl_wchar_t *PL_atom_generator_w(const pl_wchar_t *pref, pl_wchar_t *buffer
return NULL;
}
extern atom_t PrologPrompt(void);
char *
PL_prompt_string(int fd)
{ if ( fd == 0 )
{ atom_t a = PrologPrompt(); /* TBD: deal with UTF-8 */
if ( a )
{
Atom at = SWIAtomToAtom(a);
if (!IsWideAtom(at) && !IsBlob(at)) {
return RepAtom(at)->StrOfAE;
}
}
}
return NULL;
}
const char *Yap_GetCurrentPredName(void);
Int Yap_GetCurrentPredArity(void);

8
packages/PLStream/pl-file.c
View File

@ -4713,6 +4713,9 @@ static const PL_extension foreigns[] = {
META|NDET),
FRG("$raw_read", 1, pl_raw_read, 0),
FRG("$raw_read", 2, pl_raw_read2, 0),
FRG("$swi_current_prolog_flag", 5, pl_prolog_flag5, NDET),
FRG("$swi_current_prolog_flag", 2, pl_prolog_flag, NDET|ISO),
/* DO NOT ADD ENTRIES BELOW THIS ONE */
LFRG((char *)NULL, 0, NULL, 0)
};
@ -4742,8 +4745,10 @@ static void
init_yap(void)
{
GET_LD
setPrologFlagMask(PLFLAG_TTY_CONTROL);
/* we need encodings first */
initCharTypes();
initPrologFlags();
setPrologFlagMask(PLFLAG_TTY_CONTROL);
initFiles();
PL_register_extensions(PL_predicates_from_ctype);
PL_register_extensions(PL_predicates_from_file);
@ -4752,6 +4757,7 @@ init_yap(void)
PL_register_extensions(PL_predicates_from_write);
PL_register_extensions(PL_predicates_from_read);
PL_register_extensions(PL_predicates_from_tai);
PL_register_extensions(PL_predicates_from_prologflag);
PL_register_extensions(foreigns);
fileerrors = TRUE;
SinitStreams();

30
packages/PLStream/pl-incl.h
View File

@ -168,6 +168,10 @@ typedef uintptr_t PL_atomic_t; /* same a word */
#define SIG_FREECLAUSES (SIG_PROLOG_OFFSET+4)
#define SIG_PLABORT (SIG_PROLOG_OFFSET+5)
#define LOCAL_OVERFLOW (-1)
#define GLOBAL_OVERFLOW (-2)
#define TRAIL_OVERFLOW (-3)
#define ARGUMENT_OVERFLOW (-4)
/********************************
* UTILITIES *
@ -370,12 +374,14 @@ typedef struct
// LOCAL variables (heap will get this form LOCAL
#define FT_ATOM 0 /* atom feature */
#define FT_BOOL 1 /* boolean feature (true, false) */
#define FT_INTEGER 2 /* integer feature */
#define FT_TERM 3 /* term feature */
#define FT_INT64 4 /* passed as int64_t */
#define FT_MASK 0x0f /* mask to get type */
#define FT_ATOM 0 /* atom feature */
#define FT_BOOL 1 /* boolean feature (true, false) */
#define FT_INTEGER 2 /* integer feature */
#define FT_FLOAT 3 /* float feature */
#define FT_TERM 4 /* term feature */
#define FT_INT64 5 /* passed as int64_t */
#define FT_FROM_VALUE 0x0f /* Determine type from value */
#define FT_MASK 0x0f /* mask to get type */
#define FF_READONLY 0x10 /* feature is read-only */
#define FF_KEEP 0x20 /* keep value it already set */
@ -778,7 +784,7 @@ COMMON(word) pl_write_canonical2(term_t stream, term_t term);
/* empty stub */
extern void setPrologFlag(const char *name, int flags, ...);
extern void PL_set_prolog_flag(const char *name, int flags, ...);
extern int PL_set_prolog_flag(const char *name, int flags, ...);
extern install_t PL_install_readline(void);
@ -795,6 +801,11 @@ COMMON(Buffer) codes_or_chars_to_buffer(term_t l, unsigned int flags,
COMMON(bool) systemMode(bool accept);
COMMON(void) initPrologFlagTable(void);
COMMON(void) initPrologFlags(void);
COMMON(int) raiseStackOverflow(int overflow);
static inline word
setBoolean(int *flag, term_t old, term_t new)
{ if ( !PL_unify_bool_ex(old, *flag) ||
@ -815,6 +826,10 @@ COMMON(void) PL_put_term__LD(term_t t1, term_t t2 ARG_LD);
COMMON(int) PL_unify_atom__LD(term_t t, atom_t a ARG_LD);
COMMON(int) PL_unify_integer__LD(term_t t1, intptr_t i ARG_LD);
COMMON(word) pl_get_prolog_flag(term_t key, term_t value);
COMMON(word) pl_prolog_flag5(term_t key, term_t value, word scope, word access, word type, control_t h);
COMMON(foreign_t) pl_prolog_flag(term_t name, term_t value, control_t h);
/* inlines that need ARG_LD */
static inline intptr_t
skip_list(Word l, Word *tailp ARG_LD) {
@ -845,4 +860,5 @@ extern const PL_extension PL_predicates_from_glob[];
extern const PL_extension PL_predicates_from_read[];
extern const PL_extension PL_predicates_from_tai[];
extern const PL_extension PL_predicates_from_write[];
extern const PL_extension PL_predicates_from_prologflag[];

442
packages/PLStream/pl-prologflag.c
View File

@ -24,14 +24,21 @@
/*#define O_DEBUG 1*/
#include "pl-incl.h"
#ifdef __YAP_PROLOG__
#include "pl-ctype.h"
#else
#include "os/pl-ctype.h"
#endif
#include <ctype.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#ifdef __WINDOWS__
#include <process.h> /* getpid() */
#endif
#define LOCK() PL_LOCK(PLFLAG_L)
#define UNLOCK() PL_UNLOCK(PLFLAG_L)
#define LOCK() PL_LOCK(L_PLFLAG)
#define UNLOCK() PL_UNLOCK(L_PLFLAG)
/*******************************
@ -65,10 +72,12 @@ option, but 90% of the prolog flags are read-only or never changed and
we want to be able to have a lot of flags and don't harm thread_create/3
too much.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
static void setArgvPrologFlag();
static void setTZPrologFlag();
#ifndef __YAP_PROLOG__
static void setArgvPrologFlag(void);
static void setTZPrologFlag(void);
static void setVersionPrologFlag(void);
#endif
static atom_t lookupAtomFlag(atom_t key);
typedef struct _prolog_flag
{ short flags; /* Type | Flags */
@ -76,6 +85,7 @@ typedef struct _prolog_flag
union
{ atom_t a; /* value as atom */
int64_t i; /* value as integer */
double f; /* value as float */
record_t t; /* value as term */
} value;
} prolog_flag;
@ -92,13 +102,13 @@ following arguments are to be provided:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
static int
indexOfBoolMask(uintptr_t mask)
indexOfBoolMask(unsigned int mask)
{ int i=1;
if ( !mask )
return -1;
while(!(mask & 0x1L))
while(!(mask & 0x1))
{ i++;
mask >>= 1;
}
@ -108,7 +118,8 @@ indexOfBoolMask(uintptr_t mask)
void
setPrologFlag(const char *name, int flags, ...)
{ atom_t an = PL_new_atom(name);
{ GET_LD
atom_t an = PL_new_atom(name);
prolog_flag *f;
Symbol s;
va_list args;
@ -134,8 +145,8 @@ setPrologFlag(const char *name, int flags, ...)
va_start(args, flags);
switch(type)
{ case FT_BOOL:
{ int val = va_arg(args, int);
uintptr_t mask = va_arg(args, uintptr_t);
{ int val = va_arg(args, int);
unsigned int mask = va_arg(args, unsigned int);
if ( s && mask && f->index < 0 ) /* type definition */
{ f->index = indexOfBoolMask(mask);
@ -147,7 +158,7 @@ setPrologFlag(const char *name, int flags, ...)
f->value.a = (val ? ATOM_true : ATOM_false);
if ( f->index >= 0 )
{ mask = 1L << (f->index-1);
{ mask = (unsigned int)1 << (f->index-1);
if ( val )
setPrologFlagMask(mask);
@ -161,6 +172,11 @@ setPrologFlag(const char *name, int flags, ...)
f->value.i = val;
break;
}
case FT_FLOAT:
{ double val = va_arg(args, double);
f->value.f = val;
break;
}
case FT_INT64:
{ int64_t val = va_arg(args, int64_t);
f->value.i = val;
@ -196,7 +212,8 @@ setPrologFlag(const char *name, int flags, ...)
#ifdef O_PLMT
static void
copySymbolPrologFlagTable(Symbol s)
{ prolog_flag *f = s->value;
{ GET_LD
prolog_flag *f = s->value;
prolog_flag *copy = allocHeap(sizeof(*copy));
*copy = *f;
@ -208,7 +225,8 @@ copySymbolPrologFlagTable(Symbol s)
static void
freeSymbolPrologFlagTable(Symbol s)
{ prolog_flag *f = s->value;
{ GET_LD
prolog_flag *f = s->value;
if ( (f->flags & FT_MASK) == FT_TERM )
PL_erase(f->value.t);
@ -217,10 +235,11 @@ freeSymbolPrologFlagTable(Symbol s)
}
#endif
#ifndef __YAP_PROLOG__
int
setDoubleQuotes(atom_t a, unsigned int *flagp)
{ unsigned int flags;
{ GET_LD
unsigned int flags;
if ( a == ATOM_chars )
flags = DBLQ_CHARS;
@ -254,15 +273,16 @@ setUnknown(atom_t a, unsigned int *flagp)
else if ( a == ATOM_warning )
flags = UNKNOWN_WARNING;
else if ( a == ATOM_fail )
flags = 0;
flags = UNKNOWN_FAIL;
else
{ term_t value = PL_new_term_ref();
{ GET_LD
term_t value = PL_new_term_ref();
PL_put_atom(value, a);
return PL_error(NULL, 0, NULL, ERR_DOMAIN, ATOM_unknown, value);
}
*flagp &= ~(UNKNOWN_ERROR|UNKNOWN_WARNING);
*flagp &= ~(UNKNOWN_MASK);
*flagp |= flags;
succeed;
@ -271,7 +291,8 @@ setUnknown(atom_t a, unsigned int *flagp)
static int
setWriteAttributes(atom_t a)
{ int mask = writeAttributeMask(a);
{ GET_LD
int mask = writeAttributeMask(a);
if ( mask )
{ LD->prolog_flag.write_attributes = mask;
@ -302,7 +323,9 @@ getOccursCheckMask(atom_t a, occurs_check_t *val)
static int
setOccursCheck(atom_t a)
{ if ( getOccursCheckMask(a, &LD->prolog_flag.occurs_check) )
{ GET_LD
if ( getOccursCheckMask(a, &LD->prolog_flag.occurs_check) )
{ succeed;
} else
{ term_t value = PL_new_term_ref();
@ -312,10 +335,12 @@ setOccursCheck(atom_t a)
}
}
#endif /* __YAP_PROLOG__ */
static int
setEncoding(atom_t a)
{ IOENC enc = atom_to_encoding(a);
{ GET_LD
IOENC enc = atom_to_encoding(a);
if ( enc == ENC_UNKNOWN )
{ term_t value = PL_new_term_ref();
@ -331,8 +356,9 @@ setEncoding(atom_t a)
static word
set_prolog_flag_unlocked(term_t key, term_t value)
{ atom_t k;
set_prolog_flag_unlocked(term_t key, term_t value, int flags)
{ GET_LD
atom_t k;
Symbol s;
prolog_flag *f;
Module m = MODULE_parse;
@ -375,58 +401,117 @@ set_prolog_flag_unlocked(term_t key, term_t value)
f = f2;
}
#endif
} else /* define new Prolog flag */
{ prolog_flag *f = allocHeap(sizeof(*f));
} else if ( !(flags & FF_NOCREATE) ) /* define new Prolog flag */
{ prolog_flag *f;
atom_t a;
int64_t i;
double d;
anyway:
PL_register_atom(k);
f = allocHeap(sizeof(*f));
f->index = -1;
if ( PL_get_atom(value, &a) )
{ if ( a == ATOM_true || a == ATOM_false || a == ATOM_on || a == ATOM_off )
f->flags = FT_BOOL;
else
f->flags = FT_ATOM;
f->value.a = a;
PL_register_atom(a);
} else if ( PL_get_int64(value, &i) )
{ f->flags = FT_INTEGER;
f->value.i = i;
} else
{ f->flags = FT_TERM;
f->value.t = PL_record(value);
switch( (flags & FT_MASK) )
{ case FT_FROM_VALUE:
{ if ( PL_get_atom(value, &a) )
{ if ( a == ATOM_true || a == ATOM_false ||
a == ATOM_on || a == ATOM_off )
f->flags = FT_BOOL;
else
f->flags = FT_ATOM;
f->value.a = a;
PL_register_atom(a);
} else if ( PL_get_int64(value, &i) )
{ f->flags = FT_INTEGER;
f->value.i = i;
} else if ( PL_get_float(value, &d) )
{ f->flags = FT_FLOAT;
f->value.f = d;
} else
{ f->flags = FT_TERM;
if ( !PL_is_ground(value) )
{ PL_error(NULL, 0, NULL, ERR_INSTANTIATION);
goto wrong_type;
}
if ( !(f->value.t = PL_record(value)) )
goto wrong_type;
f->value.t = PL_record(value);
}
break;
}
case FT_ATOM:
if ( !PL_get_atom_ex(value, &f->value.a) )
{ wrong_type:
freeHeap(f, sizeof(*f));
return FALSE;
}
f->flags = FT_ATOM;
PL_register_atom(f->value.a);
break;
case FT_BOOL:
{ int b;
if ( !PL_get_bool_ex(value, &b) )
goto wrong_type;
f->flags = FT_BOOL;
f->value.a = (b ? ATOM_true : ATOM_false);
break;
}
case FT_INTEGER:
if ( !PL_get_int64_ex(value, &f->value.i) )
goto wrong_type;
f->flags = FT_INTEGER;
break;
case FT_FLOAT:
if ( !PL_get_float_ex(value, &f->value.f) )
goto wrong_type;
f->flags = FT_FLOAT;
break;
case FT_TERM:
if ( !PL_is_ground(value) )
{ PL_error(NULL, 0, NULL, ERR_INSTANTIATION);
goto wrong_type;
}
if ( !(f->value.t = PL_record(value)) )
goto wrong_type;
f->flags = FT_TERM;
break;
}
#ifdef O_PLMT
if ( GD->statistics.threads_created > 1 )
{ if ( !LD->prolog_flag.table )
{ LD->prolog_flag.table = newHTable(4);
if ( (flags & FF_READONLY) )
f->flags |= FF_READONLY;
LD->prolog_flag.table->copy_symbol = copySymbolPrologFlagTable;
LD->prolog_flag.table->free_symbol = freeSymbolPrologFlagTable;
}
addHTable(LD->prolog_flag.table, (void *)k, f);
} else
#endif
addHTable(GD->prolog_flag.table, (void *)k, f);
addHTable(GD->prolog_flag.table, (void *)k, f);
succeed;
} else
{ atom_t how = lookupAtomFlag(ATOM_user_flags);
if ( how == ATOM_error )
return PL_error(NULL, 0, NULL, ERR_EXISTENCE,
ATOM_prolog_flag, key);
else if ( how == ATOM_warning )
Sdprintf("WARNING: Flag %s: new Prolog flags must be created using "
"create_prolog_flag/3\n", stringAtom(k));
goto anyway;
}
switch(f->flags & FT_MASK)
{ case FT_BOOL:
{ int val;
if ( !PL_get_bool(value, &val) )
{ return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_bool, value);
}
if ( !PL_get_bool_ex(value, &val) )
return FALSE;
if ( f->index > 0 )
{ uintptr_t mask = 1L << (f->index-1);
{ unsigned int mask = (unsigned int)1 << (f->index-1);
if ( val )
setPrologFlagMask(mask);
else
clearPrologFlagMask(mask);
}
#ifndef __YAP_PROLOG__
if ( k == ATOM_character_escapes )
{ if ( val )
set(m, CHARESCAPE);
@ -447,6 +532,8 @@ set_prolog_flag_unlocked(term_t key, term_t value)
break; /* don't change value */
#endif
}
#endif /* __YAP_PROLOG__ */
/* set the flag value */
f->value.a = (val ? ATOM_true : ATOM_false);
@ -455,9 +542,10 @@ set_prolog_flag_unlocked(term_t key, term_t value)
case FT_ATOM:
{ atom_t a;
if ( !PL_get_atom(value, &a) )
return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_atom, value);
if ( !PL_get_atom_ex(value, &a) )
return FALSE;
#ifndef __YAP_PROLOG__
if ( k == ATOM_double_quotes )
{ rval = setDoubleQuotes(a, &m->flags);
} else if ( k == ATOM_unknown )
@ -466,7 +554,9 @@ set_prolog_flag_unlocked(term_t key, term_t value)
{ rval = setWriteAttributes(a);
} else if ( k == ATOM_occurs_check )
{ rval = setOccursCheck(a);
} else if ( k == ATOM_encoding )
} else
#endif
if ( k == ATOM_encoding )
{ rval = setEncoding(a);
}
if ( !rval )
@ -475,17 +565,13 @@ set_prolog_flag_unlocked(term_t key, term_t value)
PL_unregister_atom(f->value.a);
f->value.a = a;
PL_register_atom(a);
if ( k == ATOM_float_format )
{ PL_register_atom(a); /* so it will never be lost! */
LD->float_format = PL_atom_chars(a);
}
break;
}
case FT_INTEGER:
{ int64_t i;
if ( !PL_get_int64(value, &i) )
return PL_error(NULL, 0, NULL, ERR_TYPE, ATOM_integer, value);
if ( !PL_get_int64_ex(value, &i) )
return FALSE;
f->value.i = i;
#ifdef O_ATOMGC
if ( k == ATOM_agc_margin )
@ -493,6 +579,14 @@ set_prolog_flag_unlocked(term_t key, term_t value)
#endif
break;
}
case FT_FLOAT:
{ double d;
if ( !PL_get_float_ex(value, &d) )
return FALSE;
f->value.f = d;
break;
}
case FT_TERM:
{ if ( f->value.t )
PL_erase(f->value.t);
@ -507,21 +601,108 @@ set_prolog_flag_unlocked(term_t key, term_t value)
}
word
pl_set_prolog_flag(term_t key, term_t value)
/** set_prolog_flag(+Key, +Value) is det.
*/
static
PRED_IMPL("set_prolog_flag", 2, set_prolog_flag, PL_FA_ISO)
{ word rc;
LOCK();
rc = set_prolog_flag_unlocked(key, value);
rc = set_prolog_flag_unlocked(A1, A2, FF_NOCREATE|FT_FROM_VALUE);
UNLOCK();
return rc;
}
/** create_prolog_flag(+Key, +Value, +Options) is det.
*/
static const opt_spec prolog_flag_options[] =
{ { ATOM_type, OPT_ATOM },
{ ATOM_access, OPT_ATOM },
{ NULL_ATOM, 0 }
};
static
PRED_IMPL("create_prolog_flag", 3, create_prolog_flag, PL_FA_ISO)
{ PRED_LD
word rc;
int flags = 0;
atom_t type = 0;
atom_t access = ATOM_read_write;
if ( !scan_options(A3, 0, ATOM_prolog_flag_option, prolog_flag_options,
&type, &access) )
return FALSE;
if ( type == 0 )
flags |= FT_FROM_VALUE;
else if ( type == ATOM_boolean )
flags |= FT_BOOL;
else if ( type == ATOM_integer )
flags |= FT_INTEGER;
else if ( type == ATOM_float )
flags |= FT_FLOAT;
else if ( type == ATOM_atom )
flags |= FT_ATOM;
else if ( type == ATOM_term )
flags |= FT_TERM;
else
{ term_t a = PL_new_term_ref();
PL_put_atom(a, type);
return PL_error(NULL, 0, NULL, ERR_DOMAIN, ATOM_prolog_flag_type, a);
}
if ( access == ATOM_read_only )
flags |= FF_READONLY;
else if ( access != ATOM_read_write )
{ term_t a = PL_new_term_ref();
PL_put_atom(a, access);
return PL_error(NULL, 0, NULL, ERR_DOMAIN, ATOM_prolog_flag_access, a);
}
LOCK();
rc = set_prolog_flag_unlocked(A1, A2, flags);
UNLOCK();
return rc;
}
static atom_t
lookupAtomFlag(atom_t key)
{ GET_LD
Symbol s;
prolog_flag *f = NULL;
#ifdef O_PLMT
if ( LD->prolog_flag.table &&
(s = lookupHTable(LD->prolog_flag.table, (void *)key)) )
{ f = s->value;
} else
#endif
{ if ( (s = lookupHTable(GD->prolog_flag.table, (void *)key)) )
f = s->value;
}
if ( f )
{ assert((f->flags&FT_MASK) == FT_ATOM);
return f->value.a;
}
return NULL_ATOM;
}
static int
unify_prolog_flag_value(Module m, atom_t key, prolog_flag *f, term_t val)
{ if ( key == ATOM_character_escapes )
{ GET_LD
#ifndef __YAP_PROLOG__
if ( key == ATOM_character_escapes )
{ atom_t v = (true(m, CHARESCAPE) ? ATOM_true : ATOM_false);
return PL_unify_atom(val, v);
@ -541,12 +722,19 @@ unify_prolog_flag_value(Module m, atom_t key, prolog_flag *f, term_t val)
} else if ( key == ATOM_unknown )
{ atom_t v;
if ( true(m, UNKNOWN_ERROR) )
v = ATOM_error;
else if ( true(m, UNKNOWN_WARNING) )
v = ATOM_warning;
else
v = ATOM_fail;
switch ( getUnknownModule(m) )
{ case UNKNOWN_ERROR:
v = ATOM_error;
break;
case UNKNOWN_WARNING:
v = ATOM_warning;
break;
case UNKNOWN_FAIL:
v = ATOM_fail;
break;
default:
assert(0);
}
return PL_unify_atom(val, v);
#ifdef O_PLMT
@ -558,11 +746,12 @@ unify_prolog_flag_value(Module m, atom_t key, prolog_flag *f, term_t val)
} else if ( key == ATOM_debugger_show_context )
{ return PL_unify_bool_ex(val, debugstatus.showContext);
}
#endif /* YAP_PROLOG */
switch(f->flags & FT_MASK)
{ case FT_BOOL:
if ( f->index >= 0 )
{ uintptr_t mask = 1L << (f->index-1);
{ unsigned int mask = (unsigned int)1 << (f->index-1);
return PL_unify_bool_ex(val, truePrologFlag(mask) != FALSE);
}
@ -571,11 +760,15 @@ unify_prolog_flag_value(Module m, atom_t key, prolog_flag *f, term_t val)
return PL_unify_atom(val, f->value.a);
case FT_INTEGER:
return PL_unify_int64(val, f->value.i);
case FT_FLOAT:
return PL_unify_float(val, f->value.f);
case FT_TERM:
{ term_t tmp = PL_new_term_ref();
PL_recorded(f->value.t, tmp);
return PL_unify(val, tmp);
if ( PL_recorded(f->value.t, tmp) )
return PL_unify(val, tmp);
else
return raiseStackOverflow(GLOBAL_OVERFLOW);
}
default:
assert(0);
@ -586,7 +779,9 @@ unify_prolog_flag_value(Module m, atom_t key, prolog_flag *f, term_t val)
static int
unify_prolog_flag_access(prolog_flag *f, term_t access)
{ if ( f->flags & FF_READONLY )
{ GET_LD
if ( f->flags & FF_READONLY )
return PL_unify_atom(access, ATOM_read);
else
return PL_unify_atom(access, ATOM_write);
@ -595,11 +790,12 @@ unify_prolog_flag_access(prolog_flag *f, term_t access)
static int
unify_prolog_flag_type(prolog_flag *f, term_t type)
{ atom_t a;
{ GET_LD
atom_t a;
switch(f->flags & FT_MASK)
{ case FT_BOOL:
a = ATOM_bool;
a = ATOM_boolean;
break;
case FT_ATOM:
a = ATOM_atom;
@ -607,6 +803,9 @@ unify_prolog_flag_type(prolog_flag *f, term_t type)
case FT_INTEGER:
a = ATOM_integer;
break;
case FT_FLOAT:
a = ATOM_float;
break;
case FT_TERM:
a = ATOM_term;
break;
@ -630,7 +829,8 @@ word
pl_prolog_flag5(term_t key, term_t value,
word scope, word access, word type,
control_t h)
{ prolog_flag_enum *e;
{ GET_LD
prolog_flag_enum *e;
Symbol s;
fid_t fid;
Module module;
@ -721,10 +921,12 @@ pl_prolog_flag5(term_t key, term_t value,
{ UNLOCK();
ForeignRedoPtr(e);
}
#ifndef __YAP_PROLOG__
if ( exception_term )
{ exception_term = 0;
setVar(*valTermRef(exception_bin));
}
#endif
PL_rewind_foreign_frame(fid);
}
@ -762,9 +964,12 @@ pl_prolog_flag(term_t name, term_t value, control_t h)
#endif
void
initPrologFlagTable()
initPrologFlagTable(void)
{ if ( !GD->prolog_flag.table )
{ initPrologThreads(); /* may be called before PL_initialise() */
{
#ifndef __YAP_PROLOG__
initPrologThreads(); /* may be called before PL_initialise() */
#endif
GD->prolog_flag.table = newHTable(32);
}
@ -772,8 +977,10 @@ initPrologFlagTable()
void
initPrologFlags()
{ setPrologFlag("iso", FT_BOOL, FALSE, PLFLAG_ISO);
initPrologFlags(void)
{ GET_LD
#ifndef __YAP_PROLOG__
setPrologFlag("iso", FT_BOOL, FALSE, PLFLAG_ISO);
setPrologFlag("arch", FT_ATOM|FF_READONLY, ARCH);
#if __WINDOWS__
setPrologFlag("windows", FT_BOOL|FF_READONLY, TRUE, 0);
@ -791,13 +998,6 @@ initPrologFlags()
setPrologFlag("generate_debug_info", FT_BOOL,
truePrologFlag(PLFLAG_DEBUGINFO), PLFLAG_DEBUGINFO);
setPrologFlag("last_call_optimisation", FT_BOOL, TRUE, PLFLAG_LASTCALL);
#ifdef O_PLMT
setPrologFlag("abort_with_exception", FT_BOOL|FF_READONLY,
TRUE, PLFLAG_EX_ABORT);
#else
setPrologFlag("abort_with_exception", FT_BOOL,
FALSE, PLFLAG_EX_ABORT);
#endif
setPrologFlag("c_libs", FT_ATOM|FF_READONLY, C_LIBS);
setPrologFlag("c_cc", FT_ATOM|FF_READONLY, C_CC);
setPrologFlag("c_ldflags", FT_ATOM|FF_READONLY, C_LDFLAGS);
@ -813,9 +1013,6 @@ initPrologFlags()
setPrologFlag("open_shared_object", FT_BOOL|FF_READONLY, TRUE, 0);
setPrologFlag("shared_object_extension", FT_ATOM|FF_READONLY, SO_EXT);
setPrologFlag("shared_object_search_path", FT_ATOM|FF_READONLY, SO_PATH);
#endif
#if O_DYNAMIC_STACKS
setPrologFlag("dynamic_stacks", FT_BOOL|FF_READONLY, TRUE, 0);
#endif
setPrologFlag("address_bits", FT_INTEGER|FF_READONLY, sizeof(void*)*8);
#ifdef HAVE_POPEN
@ -824,9 +1021,6 @@ initPrologFlags()
#ifdef O_PLMT
setPrologFlag("threads", FT_BOOL|FF_READONLY, TRUE, 0);
setPrologFlag("system_thread_id", FT_INTEGER|FF_READONLY, 0, 0);
#ifdef MAX_THREADS
setPrologFlag("max_threads", FT_INTEGER|FF_READONLY, MAX_THREADS);
#endif
#else
setPrologFlag("threads", FT_BOOL|FF_READONLY, FALSE, 0);
#endif
@ -846,7 +1040,8 @@ initPrologFlags()
setPrologFlag("debug_on_error", FT_BOOL, TRUE, PLFLAG_DEBUG_ON_ERROR);
setPrologFlag("report_error", FT_BOOL, TRUE, PLFLAG_REPORT_ERROR);
#endif
setPrologFlag("editor", FT_ATOM, "default");
setPrologFlag("user_flags", FT_ATOM, "silent");
setPrologFlag("editor", FT_ATOM, "default");
setPrologFlag("debugger_show_context", FT_BOOL, FALSE, 0);
setPrologFlag("autoload", FT_BOOL, TRUE, PLFLAG_AUTOLOAD);
#ifndef O_GMP
@ -868,7 +1063,6 @@ initPrologFlags()
else
setPrologFlag("integer_rounding_function", FT_ATOM|FF_READONLY, "toward_zero");
setPrologFlag("max_arity", FT_ATOM|FF_READONLY, "unbounded");
setPrologFlag("float_format", FT_ATOM, "%g");
setPrologFlag("answer_format", FT_ATOM, "~p");
setPrologFlag("character_escapes", FT_BOOL, TRUE, PLFLAG_CHARESCAPE);
setPrologFlag("char_conversion", FT_BOOL, FALSE, PLFLAG_CHARCONVERSION);
@ -880,23 +1074,19 @@ initPrologFlags()
setPrologFlag("debug", FT_BOOL, FALSE, 0);
setPrologFlag("verbose", FT_ATOM|FF_KEEP, GD->options.silent ? "silent" : "normal");
setPrologFlag("verbose_load", FT_BOOL, TRUE, 0);
setPrologFlag("verbose_autoload", FT_BOOL, FALSE, 0);
setPrologFlag("verbose_file_search", FT_BOOL, FALSE, 0);
setPrologFlag("allow_variable_name_as_functor", FT_BOOL, FALSE,
ALLOW_VARNAME_FUNCTOR);
setPrologFlag("toplevel_var_size", FT_INTEGER, 1000);
setPrologFlag("toplevel_print_anon", FT_BOOL, TRUE, 0);
setPrologFlag("file_name_variables", FT_BOOL, FALSE, PLFLAG_FILEVARS);
setPrologFlag("fileerrors", FT_BOOL, TRUE, PLFLAG_FILEERRORS);
#ifdef __unix__
setPrologFlag("unix", FT_BOOL|FF_READONLY, TRUE, 0);
#endif
setPrologFlag("encoding", FT_ATOM, stringAtom(encoding_to_atom(LD->encoding)));
setPrologFlag("tty_control", FT_BOOL|FF_READONLY,
truePrologFlag(PLFLAG_TTY_CONTROL), PLFLAG_TTY_CONTROL);
setPrologFlag("signals", FT_BOOL|FF_READONLY,
truePrologFlag(PLFLAG_SIGNALS), PLFLAG_SIGNALS);
setPrologFlag("readline", FT_BOOL/*|FF_READONLY*/, FALSE, 0);
#if defined(__WINDOWS__) && defined(_DEBUG)
setPrologFlag("kernel_compile_mode", FT_ATOM|FF_READONLY, "debug");
@ -909,17 +1099,29 @@ initPrologFlags()
setPrologFlag("compiled_at", FT_ATOM|FF_READONLY, buf);
}
#endif
#endif /* YAP_PROLOG */
/* FLAGS used by PLStream */
setPrologFlag("tty_control", FT_BOOL|FF_READONLY,
truePrologFlag(PLFLAG_TTY_CONTROL), PLFLAG_TTY_CONTROL);
setPrologFlag("encoding", FT_ATOM, stringAtom(encoding_to_atom(LD->encoding)));
setPrologFlag("fileerrors", FT_BOOL, TRUE, PLFLAG_FILEERRORS);
setPrologFlag("readline", FT_BOOL/*|FF_READONLY*/, FALSE, 0);
#ifndef __YAP_PROLOG__
setArgvPrologFlag();
setTZPrologFlag();
setOSPrologFlags();
setVersionPrologFlag();
#endif /* YAP_PROLOG */
}
#ifndef __YAP_PROLOG__
static void
setArgvPrologFlag()
{ fid_t fid = PL_open_foreign_frame();
{ GET_LD
fid_t fid = PL_open_foreign_frame();
term_t e = PL_new_term_ref();
term_t l = PL_new_term_ref();
int argc = GD->cmdline.argc;
@ -929,15 +1131,15 @@ setArgvPrologFlag()
PL_put_nil(l);
for(n=argc-1; n>= 0; n--)
{ PL_put_variable(e);
PL_unify_chars(e, PL_ATOM|REP_FN, -1, argv[n]);
PL_cons_list(l, e, l);
if ( !PL_unify_chars(e, PL_ATOM|REP_FN, -1, argv[n]) ||
!PL_cons_list(l, e, l) )
fatalError("Could not set Prolog flag argv: not enough stack");
}
setPrologFlag("argv", FT_TERM, l);
PL_discard_foreign_frame(fid);
}
static void
setTZPrologFlag()
{ tzset();
@ -948,20 +1150,32 @@ setTZPrologFlag()
static void
setVersionPrologFlag(void)
{ fid_t fid = PL_open_foreign_frame();
{ GET_LD
fid_t fid = PL_open_foreign_frame();
term_t t = PL_new_term_ref();
int major = PLVERSION/10000;
int minor = (PLVERSION/100)%100;
int patch = (PLVERSION%100);
PL_unify_term(t, PL_FUNCTOR_CHARS, "swi", 4,
PL_INT, major,
PL_INT, minor,
PL_INT, patch,
PL_ATOM, ATOM_nil);
if ( !PL_unify_term(t,
PL_FUNCTOR_CHARS, "swi", 4,
PL_INT, major,
PL_INT, minor,
PL_INT, patch,
PL_ATOM, ATOM_nil) )
sysError("Could not set version");
setPrologFlag("version_data", FF_READONLY|FT_TERM, t);
PL_discard_foreign_frame(fid);
setGITVersion();
}
#endif /* YAP_PROLOG */
/*******************************
* PUBLISH PREDICATES *
*******************************/
BeginPredDefs(prologflag)
PRED_DEF("$swi_set_prolog_flag", 2, set_prolog_flag, PL_FA_ISO)
PRED_DEF("$swi_create_prolog_flag", 3, create_prolog_flag, 0)
EndPredDefs

3
packages/PLStream/pl-read.c
View File

@ -509,6 +509,9 @@ raw_read2(ReadData _PL_rd ARG_LD)
_PL_rd->strictness = truePrologFlag(PLFLAG_ISO);
source_line_no = -1;
fprintf(stderr,"write_prompt\n");
jmp_deb(1);
for(;;)
{ c = getchr();

81
packages/PLStream/pl-yap.c
View File

@ -2,6 +2,8 @@
/* YAP support for some low-level SWI stuff */
#include <stdio.h>
#include "Yap.h"
#include "Yatom.h"
#include "pl-incl.h"
#if HAVE_MATH_H
#include <math.h>
@ -283,7 +285,7 @@ _PL_unify_atomic(term_t t, PL_atomic_t a)
int
_PL_unify_string(term_t t, word w)
{
GET_LD
CACHE_REGS
return Yap_unify(Yap_GetFromSlot(t PASS_REGS), w);
}
@ -456,17 +458,55 @@ lengthList(term_t list, int errors)
return isVar(*tail) ? -2 : -1;
}
void
setPrologFlag(const char *name, int flags, ...)
int raiseStackOverflow(int overflow)
{
return overflow;
}
void
PL_set_prolog_flag(const char *name, int flags, ...)
{
/*******************************
* FEATURES *
*******************************/
int
PL_set_prolog_flag(const char *name, int type, ...)
{ va_list args;
int rval = TRUE;
int flags = (type & FF_MASK);
initPrologFlagTable();
va_start(args, type);
switch(type & ~FF_MASK)
{ case PL_BOOL:
{ int val = va_arg(args, int);
setPrologFlag(name, FT_BOOL|flags, val, 0);
break;
}
case PL_ATOM:
{ const char *v = va_arg(args, const char *);
#ifndef __YAP_PROLOG__
if ( !GD->initialised )
initAtoms();
#endif
setPrologFlag(name, FT_ATOM|flags, v);
break;
}
case PL_INTEGER:
{ intptr_t v = va_arg(args, intptr_t);
setPrologFlag(name, FT_INTEGER|flags, v);
break;
}
default:
rval = FALSE;
}
va_end(args);
return rval;
}
int
PL_unify_chars(term_t t, int flags, size_t len, const char *s)
{ PL_chars_t text;
@ -802,6 +842,24 @@ PL_ttymode(IOSTREAM *s)
return PL_NOTTY;
}
char *
PL_prompt_string(int fd)
{ if ( fd == 0 )
{ atom_t a = PrologPrompt(); /* TBD: deal with UTF-8 */
if ( a )
{
Atom at = YAP_AtomFromSWIAtom(a);
if (!IsWideAtom(at) && !IsBlob(at)) {
return RepAtom(at)->StrOfAE;
}
}
}
return NULL;
}
X_API void
PL_prompt_next(int fd)
{ GET_LD
@ -846,6 +904,15 @@ input_on_fd(int fd)
#endif
PL_dispatch_hook_t
PL_dispatch_hook(PL_dispatch_hook_t hook)
{ PL_dispatch_hook_t old = GD->foreign.dispatch_events;
GD->foreign.dispatch_events = hook;
return old;
}
X_API int
PL_dispatch(int fd, int wait)
{ if ( wait == PL_DISPATCH_INSTALLED )

5
packages/PLStream/pl-yap.h
View File

@ -24,7 +24,7 @@
#endif
#define INTBITSIZE (sizeof(int)*8)
typedef YAP_Term Module;
typedef module_t Module;
typedef YAP_Term *Word; /* Anonymous 4 byte object */
typedef YAP_Term (*Func)(term_t); /* foreign functions */
@ -113,7 +113,7 @@ void PL_license(const char *license, const char *module);
#define arityFunctor(f) YAP_PLArityOfSWIFunctor(f)
#define stringAtom(w) YAP_AtomName((YAP_Atom)(w))
#define stringAtom(w) YAP_AtomName(YAP_AtomFromSWIAtom(w))
#define isInteger(A) (YAP_IsIntTerm((A)) || YAP_IsBigNumTerm((A)))
#define isString(A) Yap_IsStringTerm(A)
#define isAtom(A) YAP_IsAtomTerm((A))
@ -142,6 +142,7 @@ void PL_license(const char *license, const char *module);
#define wordToTermRef(A) YAP_InitSlot(*(A))
#define isTaggedInt(A) IsIntegerTerm(A)
#define valInt(A) IntegerOfTerm(A)
#define MODULE_parse ((Module)CurrentModule)
extern term_t Yap_CvtTerm(term_t ts);

1
pl/boot.yap
View File

@ -63,6 +63,7 @@ true :- true.
),
'$enter_system_mode',
'$init_globals',
'$swi_set_prolog_flag'(fileerrors, true),
set_value(fileerrors,1),
set_value('$gc',on),
('$exit_undefp' -> true ; true),

43
pl/flags.yap
View File

@ -53,15 +53,19 @@ yap_flag(executable,L) :- '$executable'(L).
yap_flag(hide,Atom) :- !, hide(Atom).
yap_flag(unhide,Atom) :- !, unhide(Atom).
% hide/unhide atoms
yap_flag(encoding,DefaultEncoding) :- var(DefaultEncoding), !,
'$default_encoding'(DefCode),
'$valid_encoding'(DefaultEncoding, DefCode).
yap_flag(encoding,Encoding) :-
'$valid_encoding'(Encoding, EncCode), !,
'$default_encoding'(EncCode).
yap_flag(encoding,Encoding) :-
'$do_error'(domain_error(io_mode,encoding(Encoding)),yap_flag(encoding,Encoding)).
% character encoding...
yap_flag(encoding,X) :-
var(X), !,
'$swi_current_prolog_flag'(encoding, X).
yap_flag(encoding,X) :-
'$swi_set_prolog_flag'(encoding, X).
% character encoding...
yap_flag(fileerrors,X) :-
var(X), !,
'$swi_current_prolog_flag'(fileerrors, X).
yap_flag(fileerrors,X) :-
'$swi_set_prolog_flag'(fileerrors, X).
% control garbage collection
yap_flag(gc,V) :-
@ -207,12 +211,9 @@ yap_flag(home,X) :-
yap_flag(readline,X) :-
var(X), !,
get_value('$readline',X).
'$swi_current_prolog_flag'(readline, X).
yap_flag(readline,X) :-
( X = true ; X = false ), !,
set_value('$readline',X).
yap_flag(readline,X) :-
'$do_error'(domain_error(flag_value,readline+X),yap_flag(bounded,X)).
'$swi_set_prolog_flag'(readline, X).
% tabling mode
yap_flag(tabling_mode,Options) :-
@ -722,18 +723,6 @@ yap_flag(toplevel_print_options,Opts) :- !,
'$check_io_opts'(Opts, yap_flag(toplevel_print_options,Opts)),
recorda('$print_options','$toplevel'(Opts),_).
yap_flag(fileerrors,OUT) :-
var(OUT), !,
get_value(fileerrors,X0),
(X0 = [] -> X= 0 ; X = X0),
'$transl_to_on_off'(X,OUT).
yap_flag(fileerrors,on) :- !,
set_value(fileerrors,1).
yap_flag(fileerrors,off) :- !,
set_value(fileerrors,0).
yap_flag(fileerrors,X) :-
'$do_error'(domain_error(flag_value,fileerrors+X),yap_flag(fileerrors,X)).
:- recorda('$print_options','$toplevel'([quoted(true),numbervars(true),portrayed(true)]),_).
yap_flag(host_type,X) :-
@ -907,7 +896,7 @@ yap_flag(dialect,yap).
% CHARACTER_ESCAPE
'$set_yap_flags'(12,1),
'$set_fpu_exceptions',
fileerrors,
'$swi_set_prolog_flag'(fileerrors, true),
unknown(_,error).
'$adjust_language'(iso) :-
'$switch_log_upd'(1),

5
pl/yio.yap
View File

@ -88,8 +88,9 @@ open_pipe_streams(Read, Write) :-
),
unix:pipe(Read, Write).
fileerrors :- set_value(fileerrors,1).
nofileerrors :- set_value(fileerrors,0).
fileerrors :- '$swi_set_prolog_flag'(fileerrors, true).
nofileerrors :- '$swi_set_prolog_flag'(fileerrors, false).
exists(F) :- access_file(F,exist).