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flags handling II

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This commit is contained in:
Vitor Santos Costa 2016-05-12 11:49:40 +01:00
parent 70f6080857
commit d58c071200
1 changed files with 94 additions and 66 deletions
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160
C/flags.c
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@ -8,9 +8,9 @@
* *
**************************************************************************
* *
* File: flags.c *
* File: flags.c *
* Last rev: *
* mods: *
* mods: *
* comments: abstract machine definitions *
* *
*************************************************************************/
@ -25,23 +25,27 @@
#define INIT_FLAGS 1
#include "Yap.h"
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
static bool ro(Term inp);
static bool nat(Term inp);
static bool isatom(Term inp);
static bool booleanFlag(Term inp);
static Term ro(Term inp);
static Term nat(Term inp);
static Term isatom(Term inp);
static Term booleanFlag(Term inp);
// static bool string( Term inp );
// static bool list_atom( Term inp );
static bool list_option(Term inp);
static bool argv(Term inp);
static bool os_argv(Term inp);
static Term list_option(Term inp);
static Term argv(Term inp);
static Term os_argv(Term inp);
static bool agc_threshold(Term inp);
static bool gc_margin(Term inp);
static bool executable(Term inp);
static bool sys_thread_id(Term inp);
static Term executable(Term inp);
static Term sys_thread_id(Term inp);
static Term sys_pid(Term inp);
static bool mkprompt(Term inp);
static bool synerr(Term inp);
static bool indexer(Term inp);
static Term synerr(Term inp);
static Term indexer(Term inp);
static bool getenc(Term inp);
static bool typein(Term inp);
static bool dqf(Term t2);
@ -70,19 +74,19 @@ static flag_info local_flags_setup[] = {
#include "YapLFlagInfo.h"
LZERO_FLAG};
static bool indexer(Term inp) {
static Term indexer(Term inp) {
if (inp == TermOff || inp == TermSingle || inp == TermCompact ||
inp == TermMulti || inp == TermOn || inp == TermMax)
return true;
return inp;
if (IsAtomTerm(inp)) {
Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
"set_prolog_flag index in {off,single,compact,multi,on,max}");
return false;
return TermZERO;
}
Yap_Error(TYPE_ERROR_ATOM, inp,
"set_prolog_flag in {dec10,error,fail,quiet}");
return false;
return TermZERO;
}
static bool dqf1(ModEntry *new, Term t2 USES_REGS) {
@ -149,34 +153,36 @@ static bool bqf1(ModEntry *new, Term t2 USES_REGS) {
}
}
static bool isaccess(Term inp) {
static Term isaccess(Term inp) {
if (inp == TermReadWrite || inp == TermReadOnly)
return true;
return inp;
if (IsAtomTerm(inp)) {
Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
"set_prolog_flag access in {read_write,read_only}");
return false;
return TermZERO;
}
Yap_Error(TYPE_ERROR_ATOM, inp,
"set_prolog_flag access in {read_write,read_only}");
return false;
return TermZERO;
}
static bool isground(Term inp) { return Yap_IsGroundTerm(inp); }
static Term isground(Term inp) {
return Yap_IsGroundTerm(inp) ? inp : TermZERO;
}
static bool flagscope(Term inp) {
static Term flagscope(Term inp) {
if (inp == TermGlobal || inp == TermThread || inp == TermModule)
return true;
return inp;
if (IsAtomTerm(inp)) {
Yap_Error(DOMAIN_ERROR_OUT_OF_RANGE, inp,
"set_prolog_flag access in {global,module,thread}");
return false;
return TermZERO;
}
Yap_Error(TYPE_ERROR_ATOM, inp,
"set_prolog_flag access in {global,module,thread}");
return false;
return TermZERO;
}
static bool mkprompt(Term inp) {
@ -388,10 +394,10 @@ static bool typein(Term inp) {
}
#endif
static bool list_option(Term inp) {
static Term list_option(Term inp) {
if (IsVarTerm(inp)) {
Yap_Error(INSTANTIATION_ERROR, inp, "set_prolog_flag in \"...\"");
return false;
return inp;
}
Term inp0 = inp;
if (IsPairTerm(inp)) {
@ -409,26 +415,26 @@ static bool list_option(Term inp) {
}
if (!Yap_IsGroundTerm(hd))
Yap_Error(INSTANTIATION_ERROR, hd, "set_prolog_flag in \"...\"");
return false;
return TermZERO;
}
} while (IsPairTerm(inp));
if (inp == TermNil) {
return true;
return inp0;
}
Yap_Error(TYPE_ERROR_LIST, inp0, "set_prolog_flag in [...]");
return false;
return TermZERO;
} else /* lone option */ {
if (IsAtomTerm(inp)) {
return true;
return inp;
} else if (IsApplTerm(inp)) {
Functor f = FunctorOfTerm(inp);
if (!IsExtensionFunctor(f) && ArityOfFunctor(f) == 1 &&
Yap_IsGroundTerm(ArgOfTerm(1, inp))) {
return true;
return inp;
}
}
}
return false;
return TermZERO;
}
static bool agc_threshold(Term t) {
@ -466,7 +472,7 @@ static bool gc_margin(Term t) {
} else {
CACHE_REGS
Yap_PutValue(AtomGcMargin, MkIntegerTerm(i));
return TRUE;
return true;
}
}
}
@ -522,26 +528,14 @@ static Term mk_os_argc_list(USES_REGS1) {
return (t);
}
static bool argv(Term inp) {
static Term argv(Term inp) {
CACHE_REGS
Term t = mk_argc_list(PASS_REGS1);
if (IsAtomOrIntTerm(t))
GLOBAL_Flags[ARGV_FLAG].at = t;
else {
GLOBAL_Flags[ARGV_FLAG].DBT = Yap_StoreTermInDB(t, 2);
}
return false;
return mk_argc_list(PASS_REGS1);
}
static bool os_argv(Term inp) {
static Term os_argv(Term inp) {
CACHE_REGS
Term t = mk_os_argc_list(PASS_REGS1);
if (IsAtomOrIntTerm(t))
GLOBAL_Flags[OS_ARGV_FLAG].at = t;
else {
GLOBAL_Flags[OS_ARGV_FLAG].DBT = Yap_StoreTermInDB(t, 2);
}
return false;
return mk_os_argc_list(PASS_REGS1);
}
static FlagEntry *
@ -583,7 +577,7 @@ static void initFlag(flag_info *f, int fnum, bool global) {
WRITE_UNLOCK(ae->ARWLock);
}
static bool executable(Term inp) {
static Term executable(Term inp) {
CACHE_REGS
if (GLOBAL_argv && GLOBAL_argv[0]) {
if (!Yap_AbsoluteFile(GLOBAL_argv[0], LOCAL_FileNameBuf, true))
@ -591,10 +585,10 @@ static bool executable(Term inp) {
} else
strncpy(LOCAL_FileNameBuf, Yap_FindExecutable(), YAP_FILENAME_MAX - 1);
return Yap_unify(MkAtomTerm(Yap_LookupAtom(LOCAL_FileNameBuf)), inp);
return MkAtomTerm(Yap_LookupAtom(LOCAL_FileNameBuf));
}
static bool sys_thread_id(Term inp) {
static Term sys_thread_id(Term inp) {
CACHE_REGS
int pid;
#ifdef HAVE_GETTID_SYSCALL
@ -607,7 +601,19 @@ static bool sys_thread_id(Term inp) {
pid = 0;
#endif
return Yap_unify(MkIntegerTerm(pid), inp);
return MkIntegerTerm(pid);
}
static Term sys_pid(Term inp) {
CACHE_REGS
int pid;
#if defined(__MINGW32__) || _MSC_VER
pid = _getpid();
#else
pid = getpid();
#endif
return MkIntegerTerm(pid);
}
static bool setYapFlagInModule(Term tflag, Term t2, Term mod) {
@ -926,6 +932,10 @@ static Int current_prolog_flag2(USES_REGS1) {
else
tarr = LOCAL_Flags;
tout = tarr[fv->FlagOfVE].at;
if (tout == TermZERO) {
Yap_DebugPlWriteln(tflag);
return false;
}
if (IsVarTerm(tout))
tout = Yap_FetchTermFromDB(tarr[fv->FlagOfVE].DBT);
return (Yap_unify(ARG2, tout));
@ -978,10 +988,11 @@ bool setYapFlag(Term tflag, Term t2) {
} else if (fl == TermWarning) {
Yap_Warning("Flag %s does not exist", RepAtom(AtomOfTerm(fl))->StrOfAE);
} else {
Yap_Error(DOMAIN_ERROR_PROLOG_FLAG, fl, "trying to set unknown flag ~s",
AtomName(AtomOfTerm(fl)));
Yap_Error(DOMAIN_ERROR_PROLOG_FLAG, tflag,
"trying to set unknown flag \"%s\"",
AtomName(AtomOfTerm(tflag)));
}
return FALSE;
return false;
}
if (fv->global) {
CACHE_REGS
@ -997,7 +1008,7 @@ bool setYapFlag(Term tflag, Term t2) {
CACHE_REGS
tarr = LOCAL_Flags;
}
if (!(fv->type(t2)))
if (!(t2 = fv->type(t2)))
return false;
if (fv->helper && !(fv->helper(t2)))
return false;
@ -1052,10 +1063,12 @@ Term getYapFlag(Term tflag) {
if (fl == TermSilent) {
return false;
} else if (fl == TermWarning) {
Yap_Warning("Flag ~s does not exist", RepAtom(AtomOfTerm(fl))->StrOfAE);
Yap_Warning("Flag ~s does not exist",
RepAtom(AtomOfTerm(tflag))->StrOfAE);
} else {
Yap_Error(DOMAIN_ERROR_PROLOG_FLAG, fl, "trying to read unknown flag %s",
RepAtom(AtomOfTerm(fl))->StrOfAE);
Yap_Error(DOMAIN_ERROR_PROLOG_FLAG, tflag,
"trying to use unknown flag %s",
RepAtom(AtomOfTerm(tflag))->StrOfAE);
}
return false;
}
@ -1178,7 +1191,7 @@ static bool setInitialValue(bool bootstrap, flag_func f, const char *s,
return true;
} else if (f == at2n) {
if (!bootstrap) {
return 0;
return false;
}
if (!strcmp(s, "INT_MAX")) {
tarr->at = MkIntTerm(Int_MAX);
@ -1224,7 +1237,7 @@ static bool setInitialValue(bool bootstrap, flag_func f, const char *s,
char tmp[512];
Term t0;
if (bootstrap) {
return false;
return true;
}
t0 = AbsPair(HR);
while (true) {
@ -1248,6 +1261,20 @@ static bool setInitialValue(bool bootstrap, flag_func f, const char *s,
return true;
}
}
} else if (strcmp(s, "@boot") == 0) {
if (bootstrap) {
return true;
}
Term t = f(TermZERO);
if (t == TermZERO)
return false;
if (IsAtomOrIntTerm(t)) {
tarr->at = t;
} else {
tarr->DBT = Yap_StoreTermInDB(t, 2);
}
} else {
Term t0;
if (bootstrap) {
@ -1271,6 +1298,7 @@ static bool setInitialValue(bool bootstrap, flag_func f, const char *s,
}
return true;
}
return false;
}
#define PROLOG_FLAG_PROPERTY_DEFS() \
@ -1344,8 +1372,8 @@ do_prolog_flag_property(Term tflag,
rc = rc &&
Yap_unify(TermFloat, args[PROLOG_FLAG_PROPERTY_TYPE].tvalue);
else
rc = rc &&
Yap_unify(TermTerm, args[PROLOG_FLAG_PROPERTY_TYPE].tvalue);
rc =
rc && Yap_unify(TermTerm, args[PROLOG_FLAG_PROPERTY_TYPE].tvalue);
break;
case PROLOG_FLAG_PROPERTY_KEEP:
rc = rc && false;