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777817f8db
yap-6.3/m4/Yap.h.m4
vsc 777817f8db fixes for signal handling 
throw permission error on consulting bad files


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@358 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2002-02-12 18:24:21 +00:00

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/*************************************************************************
* *
* YAP Prolog %W% %G% *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: Yap.h.m4 *
* mods: *
* comments: main header file for YAP *
* version: $Id: Yap.h.m4,v 1.21 2002-02-12 18:24:20 vsc Exp $ *
*************************************************************************/
#include "config.h"
/*
#define RATIONAL_TREES 1
#define DEPTH_LIMIT 1
#define COROUTINING 1
#define YAPOR 1
#define ANALYST 1
*/
#define MULTI_ASSIGNMENT_VARIABLES 1
#if defined(TABLING)
#error Do not explicitly define TABLING
#endif /* YAPOR */
#if defined(TABLING_BATCHED_SCHEDULING) && defined(TABLING_LOCAL_SCHEDULING)
#error Do not define multiple tabling scheduling strategies
#endif /* TABLING_BATCHED_SCHEDULING || TABLING_LOCAL_SCHEDULING */
#if defined(TABLING_BATCHED_SCHEDULING) || defined(TABLING_LOCAL_SCHEDULING)
#define TABLING 1
#endif /* TABLING_BATCHED_SCHEDULING || TABLING_LOCAL_SCHEDULING */
#if defined(YAPOR)
#error Do not explicitly define YAPOR
#endif /* YAPOR */
#if (defined(ENV_COPY) && (defined(ACOW) || defined(SBA))) || (defined(ACOW) && defined(SBA))
#error Do not define multiple or-parallel models
#endif /* (ENV_COPY && (ACOW || SBA)) || (ACOW && SBA) */
#if defined(ENV_COPY) || defined(ACOW) || defined(SBA)
#define YAPOR 1
#endif /* ENV_COPY || ACOW || SBA */
#if defined(TABLING) && (defined(ACOW) || defined(SBA))
#error Currently TABLING only works with ENV_COPY
#endif /* TABLING && (ACOW || SBA) */
#ifdef YAPOR
#define FIXED_STACKS 1
#endif /* YAPOR */
#if defined(YAPOR) || defined(TABLING)
#undef TRAILING_REQUIRES_BRANCH
#endif /* YAPOR || TABLING */
#if ANALYST
#ifdef USE_THREADED_CODE
#undef USE_THREADED_CODE
#endif
#endif
#ifdef COROUTINING
#ifndef TERM_EXTENSIONS
#define TERM_EXTENSIONS 1
#endif
#endif
#ifdef SBA
#ifdef YAPOR
#ifndef FROZEN_STACKS
#define FROZEN_STACKS 1
#endif
#endif
#endif
#ifdef TABLING
#ifndef FROZEN_STACKS
#define FROZEN_STACKS 1
#endif
#endif
#ifdef _MSC_VER /* Microsoft's Visual C++ Compiler */
/* adjust a config.h from mingw32 to work with vc++ */
#ifdef HAVE_GCC
#undef HAVE_GCC
#endif
#ifdef USE_THREADED_CODE
#undef USE_THREADED_CODE
#endif
#define inline __inline
#define YAP_VERSION "Yap-4.3.21"
#define BIN_DIR "c:\\Program Files\\Yap\\bin"
#define LIB_DIR "c:\\Program Files\\Yap\\lib\\Yap"
#define SHARE_DIR "c:\\Program Files\\Yap\\share\\Yap"
#ifdef HOST_ALIAS
#undef HOST_ALIAS
#endif
#define HOST_ALIAS "i386-pc-win32"
#ifdef HAVE_IEEEFP_H
#undef HAVE_IEEEFP_H
#endif
#ifdef HAVE_UNISTD_H
#undef HAVE_UNISTD_H
#endif
#ifdef HAVE_SYS_TIME_H
#undef HAVE_SYS_TIME_H
#endif
#endif
#ifdef __MINGW32__
#ifndef _WIN32
#define _WIN32 1
#endif
#endif
#if HAVE_GCC
#define MIN_ARRAY 0
#define DUMMY_FILLER_FOR_ABS_TYPE
#else
#define MIN_ARRAY 1
#define DUMMY_FILLER_FOR_ABS_TYPE int dummy;
#endif
#ifndef ADTDEFS_C
#define EXTERN static
#else
#define EXTERN
#endif
/* truth-values */
#define TRUE 1
#define FALSE 0
/* null pointer */
#define NIL 0
/* Basic types */
/* defines integer types Int and UInt (unsigned) with the same size as a ptr
** and integer types Short and UShort with half the size of a ptr
*/
#if SIZEOF_INT_P==4
#if SIZEOF_INT==4
/* */ typedef int Int;
/* */ typedef unsigned int UInt;
#elif SIZEOF_LONG_INT==4
/* */ typedef long int Int;
/* */ typedef unsigned long int UInt;
#else
# error Yap require integer types of the same size as a pointer
#endif
#if SIZEOF_SHORT_INT==2
/* */ typedef short int Short;
/* */ typedef unsigned short int UShort;
#else
# error Yap requires integer types half the size of a pointer
#endif
#elif SIZEOF_INT_P==8
# if SIZEOF_INT==8
/* */ typedef int Int;
/* */ typedef unsigned int UInt;
#elif SIZEOF_LONG_INT==8
/* */ typedef long int Int;
/* */ typedef unsigned long int UInt;
# elif SIZEOF_LONG_LONG_INT==8
/* */ typedef long long int Int;
/* */ typedef unsigned long long int UInt;
# else
# error Yap requires integer types of the same size as a pointer
# endif
# if SIZEOF_SHORT_INT==4
/* */ typedef short int Short;
/* */ typedef unsigned short int UShort;
# elif SIZEOF_INT==4
/* */ typedef int Short;
/* */ typedef short int UShort;
# else
# error Yap requires integer types half the size of a pointer
# endif
#else
# error Yap requires pointers of size 4 or 8
#endif
/* */ typedef double Float;
#if SIZEOF_INT<SIZEOF_INT_P
#define SHORT_INTS 1
#else
#define SHORT_INTS 0
#endif
#if DEBUG
extern char Option[20];
#endif
/* #define FORCE_SECOND_QUADRANT 1 */
#if defined(FORCE_SECOND_QUADRANT)
#define IN_SECOND_QUADRANT 1
#define MMAP_ADDR 0x42000000
#endif
#if !IN_SECOND_QUADRANT
#define USE_OFFSETS 1
#if __linux__ || __FreeBSD__ || __NetBSD__ || mips || __APPLE__
#if defined(YAPOR) && defined(__alpha)
#define MMAP_ADDR 0x40000000
#elif mips
#define MMAP_ADDR 0x02000000
#elif __APPLE__
#define MMAP_ADDR 0x01000000
#else
#define MMAP_ADDR 0x09000000
#endif
#elif __svr4__
#define MMAP_ADDR 0x02000000
#elif _WIN32
#define MMAP_ADDR 0x30000000L
#endif
#endif /* !IN_SECOND_QUADRANT */
#if defined(MMAP_ADDR) && (HAVE_MMAP || HAVE_SHMAT || _WIN32) && !__simplescalar__
#define HEAP_INIT_BASE (MMAP_ADDR)
#define AtomBase ((char *)MMAP_ADDR)
#else
#define HEAP_INIT_BASE (HeapBase)
#define AtomBase (HeapBase)
#endif
#ifndef SHORT_ADDRESSES
# define LONG_ADDRESSES 1
#else
# define LONG_ADDRESSES 0
#endif
#ifndef ALIGN_LONGS
#define ALIGN_LONGS 1
#endif
/* basic data types */
typedef UInt CELL;
typedef UShort BITS16;
typedef Short SBITS16;
typedef UInt BITS32;
#if ALIGN_LONGS
typedef CELL SFLAGS;
#else
typedef BITS16 SFLAGS;
#endif
typedef char *ADDR;
typedef CELL OFFSET;
typedef unsigned char *CODEADDR;
#define WordSize sizeof(BITS16)
#define CellSize sizeof(CELL)
#define SmallSize sizeof(SMALLUNSGN)
/* type casting macros */
#define Addr(V) ((ADDR) (V))
#define Unsigned(V) ((CELL) (V))
#define Signed(V) ((Int) (V))
#define CodePtr(V) ((CODEADDR)(V))
#define CellPtr(V) ((CELL *)(V))
#define OpCodePtr(V) ((OPCODE *)(V))
#define OpRegPtr(V) ((OPREG *)(V))
#define SmallPtr(V) ((SMALLUNSGN *)(V))
#define WordPtr(V) ((BITS16 *)(V))
#define DisplPtr(V) ((DISPREG *)(V))
#define TermPtr(V) ((Term *) (V))
/* Abstract Type Definitions for YAPProlog */
typedef CELL Term;
#if !defined(YAPOR) && !defined(THREADS)
#include <nolocks.h>
#else
#ifdef i386
#include <x86_locks.h>
#endif
#if defined(sparc) || defined(__sparc)
#include <sparc_locks.h>
#endif
#ifdef mips
#include <mips_locks.h>
#endif
#ifdef __alpha
#include <alpha_locks.h>
#endif
#endif
/********************** use an auxiliary function for ranges ************/
#ifdef __GNUC__
#define IN_BETWEEN(MIN,X,MAX) (Unsigned((Int)(X)-(Int)(MIN)) <= \
Unsigned((Int)(MAX)-(Int)(MIN)) )
#define OUTSIDE(MIN,X,MAX) (Unsigned((Int)(X)-(Int)(MIN)) > \
Unsigned((Int)(MAX)-(Int)(MIN)) )
#else
#define IN_BETWEEN(MIN,X,MAX) ((void *)(X) >= (void *)(MIN) && (void *)(X) <= (void *)(MAX))
#define OUTSIDE(MIN,X,MAX) ((void *)(X) < (void *)(MIN) || (void *)(X) > (void *)(MAX))
#endif
/* ************************* Atoms *************************************/
#include "Atoms.h"
/* ************************* Coroutining **********************************/
#ifdef COROUTINING
/* Support for co-routining */
#include "corout.h"
#endif
/********* abstract machine registers **********************************/
#include "amidefs.h"
#include "Regs.h"
#if defined(YAPOR) ||defined(THREADS)
#ifdef mips
#include <mips_locks_funcs.h>
#endif
#ifdef __alpha
#include <alpha_locks_funcs.h>
#endif
#endif
/************ variables concerned with Error Handling *************/
#include <setjmp.h>
#if defined(SIMICS) || !HAVE_SIGSETJMP
#define sigjmp_buf jmp_buf
#define sigsetjmp(Env, Arg) setjmp(Env)
#define siglongjmp(Env, Arg) longjmp(Env, Arg)
#endif
extern sigjmp_buf RestartEnv; /* used to restart after an abort */
/* Support for arrays */
#include "arrays.h"
/************ variables concerned with Error Handling *************/
/* Types of Errors */
typedef enum {
NO_ERROR,
FATAL_ERROR,
INTERNAL_ERROR,
PURE_ABORT,
/* ISO_ERRORS */
DOMAIN_ERROR_ARRAY_OVERFLOW,
DOMAIN_ERROR_ARRAY_TYPE,
DOMAIN_ERROR_IO_MODE,
DOMAIN_ERROR_MUTABLE,
DOMAIN_ERROR_NON_EMPTY_LIST,
DOMAIN_ERROR_NOT_LESS_THAN_ZERO,
DOMAIN_ERROR_NOT_NL,
DOMAIN_ERROR_NOT_ZERO,
DOMAIN_ERROR_OUT_OF_RANGE,
DOMAIN_ERROR_OPERATOR_PRIORITY,
DOMAIN_ERROR_OPERATOR_SPECIFIER,
DOMAIN_ERROR_RADIX,
DOMAIN_ERROR_SHIFT_COUNT_OVERFLOW,
DOMAIN_ERROR_SOURCE_SINK,
DOMAIN_ERROR_STREAM,
DOMAIN_ERROR_STREAM_OR_ALIAS,
DOMAIN_ERROR_STREAM_POSITION,
DOMAIN_ERROR_TIMEOUT_SPEC,
DOMAIN_ERROR_SYNTAX_ERROR_HANDLER,
EVALUATION_ERROR_FLOAT_OVERFLOW,
EVALUATION_ERROR_FLOAT_UNDERFLOW,
EVALUATION_ERROR_INT_OVERFLOW,
EVALUATION_ERROR_UNDEFINED,
EVALUATION_ERROR_UNDERFLOW,
EVALUATION_ERROR_ZERO_DIVISOR,
EXISTENCE_ERROR_ARRAY,
EXISTENCE_ERROR_SOURCE_SINK,
EXISTENCE_ERROR_STREAM,
INSTANTIATION_ERROR,
PERMISSION_ERROR_ACCESS_PRIVATE_PROCEDURE,
PERMISSION_ERROR_NEW_ALIAS_FOR_STREAM,
PERMISSION_ERROR_CREATE_ARRAY,
PERMISSION_ERROR_CREATE_OPERATOR,
PERMISSION_ERROR_INPUT_BINARY_STREAM,
PERMISSION_ERROR_INPUT_PAST_END_OF_STREAM,
PERMISSION_ERROR_INPUT_STREAM,
PERMISSION_ERROR_INPUT_TEXT_STREAM,
PERMISSION_ERROR_MODIFY_STATIC_PROCEDURE,
PERMISSION_ERROR_OPEN_SOURCE_SINK,
PERMISSION_ERROR_OUTPUT_BINARY_STREAM,
PERMISSION_ERROR_OUTPUT_STREAM,
PERMISSION_ERROR_OUTPUT_TEXT_STREAM,
PERMISSION_ERROR_RESIZE_ARRAY,
PERMISSION_ERROR_REPOSITION_STREAM,
REPRESENTATION_ERROR_CHARACTER,
REPRESENTATION_ERROR_CHARACTER_CODE,
REPRESENTATION_ERROR_MAX_ARITY,
SYNTAX_ERROR,
SYSTEM_ERROR,
TYPE_ERROR_ARRAY,
TYPE_ERROR_ATOM,
TYPE_ERROR_ATOMIC,
TYPE_ERROR_BYTE,
TYPE_ERROR_CALLABLE,
TYPE_ERROR_CHARACTER,
TYPE_ERROR_COMPOUND,
TYPE_ERROR_DBREF,
TYPE_ERROR_DBTERM,
TYPE_ERROR_EVALUABLE,
TYPE_ERROR_FLOAT,
TYPE_ERROR_INTEGER,
TYPE_ERROR_KEY,
TYPE_ERROR_LIST,
TYPE_ERROR_NUMBER,
TYPE_ERROR_PREDICATE_INDICATOR,
TYPE_ERROR_PTR,
TYPE_ERROR_UBYTE,
TYPE_ERROR_VARIABLE,
UNKNOWN_ERROR
} yap_error_number;
extern char *ErrorMessage; /* used to pass error messages */
extern Term Error_Term; /* used to pass error terms */
extern yap_error_number Error_TYPE; /* used to pass the error */
typedef enum {
YAP_INT_BOUNDED_FLAG = 0,
MAX_ARITY_FLAG = 1,
INTEGER_ROUNDING_FLAG = 2,
YAP_MAX_INTEGER_FLAG = 3,
YAP_MIN_INTEGER_FLAG = 4,
CHAR_CONVERSION_FLAG = 5,
YAP_DOUBLE_QUOTES_FLAG = 6,
YAP_TO_CHARS_FLAG = 7,
LANGUAGE_MODE_FLAG = 8,
STRICT_ISO_FLAG = 9,
SPY_CREEP_FLAG = 10,
SOURCE_MODE_FLAG = 11,
CHARACTER_ESCAPE_FLAG = 12,
WRITE_QUOTED_STRING_FLAG = 13,
ALLOW_ASSERTING_STATIC_FLAG = 14,
HALT_AFTER_CONSULT_FLAG = 15,
FAST_BOOT_FLAG = 16
} yap_flags;
#define STRING_AS_CHARS 0
#define STRING_AS_ATOM 2
#define QUINTUS_TO_CHARS 0
#define ISO_TO_CHARS 1
#define CPROLOG_CHARACTER_ESCAPES 0
#define ISO_CHARACTER_ESCAPES 1
#define SICSTUS_CHARACTER_ESCAPES 2
#define NUMBER_OF_YAP_FLAGS FAST_BOOT_FLAG+1
/************************ prototypes **********************************/
#include "Yapproto.h"
/************************ OPTYap configuration ************************/
/* These must be included before unification handlers */
#if defined(YAPOR) || defined(TABLING)
#include "opt.config.h"
#endif
/***********************************************************************/
/*
absrectype Term = Int + Float + Atom + Pair + Appl + Ref + Var
with AbsAppl(t) : *CELL -> Term
and RepAppl(t) : Term -> *CELL
and AbsPair(t) : *CELL -> Term
and RepPair(t) : Term -> *CELL
and IsIntTerm(t) = ...
and IsAtomTerm(t) = ...
and IsVarTerm(t) = ...
and IsPairTerm(t) = ...
and IsApplTerm(t) = ...
and IsFloatTerm(t) = ...
and IsRefTerm(t) = ...
and IsNonVarTerm(t) = ! IsVar(t)
and IsNumterm(t) = IsIntTerm(t) || IsFloatTerm(t)
and IsAtomicTerm(t) = IsNumTerm(t) || IsAtomTerm(t)
and IsPrimitiveTerm(t) = IsAtomicTerm(t) || IsRefTerm(t)
and MkIntTerm(n) = ...
and MkFloatTerm(f) = ...
and MkAtomTerm(a) = ...
and MkVarTerm(r) = ...
and MkApplTerm(f,n,args) = ...
and MkPairTerm(hd,tl) = ...
and MkRefTerm(R) = ...
and PtrOfTerm(t) : Term -> CELL * = ...
and IntOfTerm(t) : Term -> int = ...
and FloatOfTerm(t) : Term -> flt = ...
and AtomOfTerm(t) : Term -> Atom = ...
and VarOfTerm(t) : Term -> *Term = ....
and HeadOfTerm(t) : Term -> Term = ...
and TailOfTerm(t) : Term -> Term = ...
and FunctorOfTerm(t) : Term -> Functor = ...
and ArgOfTerm(i,t) : Term -> Term= ...
and RefOfTerm(t) : Term -> DBRef = ...
*/
/*
YAP can use several different tag schemes, according to the kind of
machine we are experimenting with.
*/
#if LONG_ADDRESSES && defined(OLD_TAG_SCHEME)
#include "Tags_32bits.h"
#endif /* LONG_ADDRESSES && defined(OLD_TAG_SCHEME) */
/* AIX will by default place mmaped segments at 0x30000000. This is
incompatible with the high tag scheme. Linux-ELF also does not like
if you place things in the lower addresses (power to the libc people).
*/
#if (defined(_AIX) || defined(_WIN32) || defined(sparc) || defined(__sparc) || defined(mips) || defined(__FreeBSD__) || defined(_POWER) || defined(__linux__) || defined(IN_SECOND_QUADRANT)) && !defined(TABLING)
#define USE_LOW32_TAGS 1
#endif
#if LONG_ADDRESSES && SIZEOF_INT_P==4 && !defined(OLD_TAG_SCHEME) && !defined(USE_LOW32_TAGS)
#include "Tags_32Ops.h"
#endif /* LONG_ADDRESSES && !defined(OLD_TAG_SCHEME) && !defined(USE_LOW32_TAGS) */
#if LONG_ADDRESSES && SIZEOF_INT_P==4 && !defined(OLD_TAG_SCHEME) && defined(USE_LOW32_TAGS)
#include "Tags_32LowTag.h"
#endif /* LONG_ADDRESSES && !defined(OLD_TAG_SCHEME) */
#if LONG_ADDRESSES && SIZEOF_INT_P==8 && !defined(OLD_TAG_SCHEME)
#include "Tags_64bits.h"
#endif /* LONG_ADDRESSES && SIZEOF_INT_P==8 && !defined(OLD_TAG_SCHEME) */
#if !LONG_ADDRESSES
#include "Tags_24bits.h"
#endif /* !LONG_ADDRESSES */
#ifdef TAG_LOW_BITS_32
#define MBIT 0x80000000
#define RBIT 0x40000000
#if IN_SECOND_QUADRANT
#define INVERT_RBIT 1 /* RBIT is 1 by default */
#endif
#else
#if defined(SBA) && defined(__linux__)
#define MBIT /* 0x20000000 */ MKTAG(0x1,0) /* mark bit */
#else
#define RBIT /* 0x20000000 */ MKTAG(0x1,0) /* relocation chain bit */
#define MBIT /* 0x40000000 */ MKTAG(0x2,0) /* mark bit */
#endif
#endif
#define TermSize sizeof(Term)
/* applies to unbound variables */
Destructor(Term, VarOf, Term *, t, t)
#if SBA
Inline0(MkVarTerm, Term, (*H = 0, H++))
Inline(IsUnboundVar, int, Term, t, t == 0)
#else
Inline0(MkVarTerm, Term, (*H = (CELL) H, H++))
Inline(IsUnboundVar, int, Term, t, *VarOfTerm(t) == (t))
#endif
Inline(PtrOfTerm, CELL *, Term, t, *(CELL *)(t))
Inline(FunctorOfTerm, Functor, Term, t, *RepAppl(t))
#if IN_SECOND_QUADRANT
Inline(MkAtomTerm, Term, Atom, a, TAGGEDA(AtomTag, (CELL *)(a)-(CELL *)HEAP_INIT_BASE))
Destructor(Term, AtomOf, Atom, t, (CELL *)HEAP_INIT_BASE+NonTagPart(t))
#else
Inline(MkAtomTerm, Term, Atom, a, TAGGEDA(AtomTag, (a)))
Destructor(Term, AtomOf, Atom, t, NonTagPart(t))
#endif
Inline(IsAtomTerm, int, Term, t, CHKTAG((t), AtomTag))
Inline(MkIntTerm, Term, Int, n, TAGGED(NumberTag, (n)))
/*
A constant to subtract or add to a well-known term, we assume no
overflow problems are possible
*/
Inline(MkIntConstant, Term, Int, n, NONTAGGED(NumberTag, (n)))
Inline(IsIntTerm, int, Term, t, CHKTAG((t), NumberTag))
/* Needed to handle numbers:
these two macros are fundamental in the integer/float conversions */
#ifdef M_WILLIAMS
#define IntInBnd(X) (TRUE)
#else
#ifdef TAGS_FAST_OPS
#define IntInBnd(X) (Unsigned( ( (Int)(X) >> (32-7) ) + 1) <= 1)
#else
#define IntInBnd(X) ( (X) < MAX_ABS_INT && \
(X) > -MAX_ABS_INT-1L )
#endif
#endif
#ifdef C_PROLOG
#define FlIsInt(X) ( (X) == (Int)(X) && IntInBnd((X)) )
#else
#define FlIsInt(X) ( FALSE )
#endif
/************* variables related to memory allocation *******************/
/* must be before TermExt.h */
extern ADDR HeapBase,
LocalBase,
GlobalBase,
TrailBase, TrailTop,
ForeignCodeBase, ForeignCodeTop, ForeignCodeMax;
/*
There are two types of functors:
o Special functors mark special terms
on the heap that should be seen as constants.
o Standard functors mark normal applications.
*/
#include "TermExt.h"
#define IsAccessFunc(func) ((func) == FunctorAccess)
Inline(MkIntegerTerm, Term, Int, n, IntInBnd(n) ? MkIntTerm(n) : MkLongIntTerm(n))
Inline(IsIntegerTerm, int, Term, t, IsIntTerm(t) || IsLongIntTerm(t))
Inline(IntegerOfTerm, Int, Term, t, IsIntTerm(t) ? IntOfTerm(t) : LongIntOfTerm(t))
/*************** unification routines ***********************************/
#if SBA
#include "sbaamiops.h"
#else
#include "amiops.h"
#endif
/*************** High level macros to access arguments ******************/
Inline2(ArgOfTerm, Term, int, i, Term, t, Derefa(RepAppl(t) + (i)))
Inline(HeadOfTerm, Term, Term, t, Derefa(RepPair(t)))
Inline(TailOfTerm, Term, Term, t, Derefa(RepPair(t) + 1))
Inline2(ArgOfTermCell, Term, int, i, Term, t, (CELL)(RepAppl(t) + (i)))
Inline(HeadOfTermCell, Term, Term, t, (CELL)(RepPair(t)))
Inline(TailOfTermCell, Term, Term, t, (CELL)(RepPair(t) + 1))
/*************** variables concerned with atoms table *******************/
#define MaxHash 1001
/************ variables concerned with save and restore *************/
extern int splfild;
#define FAIL_RESTORE 0
#define DO_EVERYTHING 1
#define DO_ONLY_CODE 2
#ifdef EMACS
/******************** using Emacs mode ********************************/
extern int emacs_mode;
#endif
/************ variable concerned with version number *****************/
extern char version_number[];
/********* common instructions codes*************************/
#define MAX_PROMPT 256
#if USE_THREADED_CODE
/************ reverse lookup of instructions *****************/
typedef struct opcode_tab_entry {
OPCODE opc;
op_numbers opnum;
} opentry;
#endif
/******************* controlling the compiler ****************************/
extern int optimizer_on;
/******************* the line for the current parse **********************/
extern int StartLine;
extern int StartCh;
extern int CurFileNo;
/********************* how to write a Prolog term ***********************/
/********* Prolog may be in several modes *******************************/
typedef enum {
BootMode = 1, /* if booting or restoring */
UserMode = 2, /* Normal mode */
CritMode = 4, /* If we are meddling with the heap */
AbortMode = 8, /* expecting to abort */
InterruptMode = 16, /* under an interrupt */
InErrorMode = 32, /* under an interrupt */
ConsoleGetcMode = 64 /* blocked reading from console */
} prolog_exec_mode;
extern prolog_exec_mode PrologMode;
extern int CritLocks;
/************** Access to yap initial arguments ***************************/
extern char **yap_args;
extern int yap_argc;
#ifdef YAPOR
#define YAPEnterCriticalSection() \
{ \
if (worker_id != GLOBAL_LOCKS_who_locked_heap) { \
LOCK(GLOBAL_LOCKS_heap_access); \
GLOBAL_LOCKS_who_locked_heap = worker_id; \
} \
PrologMode |= CritMode; \
CritLocks++; \
}
#define YAPLeaveCriticalSection() \
{ \
CritLocks--; \
if (!CritLocks) { \
PrologMode &= ~CritMode; \
if (PrologMode & InterruptMode) { \
PrologMode &= ~InterruptMode; \
ProcessSIGINT(); \
} \
if (PrologMode & AbortMode) { \
PrologMode &= ~AbortMode; \
Error(PURE_ABORT, 0, ""); \
} \
GLOBAL_LOCKS_who_locked_heap = MAX_WORKERS; \
UNLOCK(GLOBAL_LOCKS_heap_access); \
} \
}
#else
#define YAPEnterCriticalSection() \
{ \
PrologMode |= CritMode; \
CritLocks++; \
}
#define YAPLeaveCriticalSection() \
{ \
CritLocks--; \
if (!CritLocks) { \
PrologMode &= ~CritMode; \
if (PrologMode & InterruptMode) { \
PrologMode &= ~InterruptMode; \
ProcessSIGINT(); \
} \
if (PrologMode & AbortMode) { \
PrologMode &= ~AbortMode; \
Error(PURE_ABORT, 0, ""); \
} \
} \
}
#endif /* YAPOR */
/* when we are calling the InitStaff procedures */
#define AT_BOOT 0
#define AT_RESTORE 1
/********* whether we should try to compile array references ******************/
extern int compile_arrays;
/********* mutable variables ******************/
/* I assume that the size of this structure is a multiple of the size
of CELL!!! */
typedef struct TIMED_MAVAR{
CELL value;
CELL clock;
} timed_var;
/********* while debugging you may need some info ***********************/
#if DEBUG
extern int output_msg;
#endif
#if EMACS
extern char emacs_tmp[], emacs_tmp2[];
#endif
#if HAVE_SIGNAL
extern int snoozing;
#endif
#if defined(YAPOR) || defined(TABLING)
#include "opt.structs.h"
#include "opt.macros.h"
#include "opt.proto.h"
#endif /* YAPOR || TABLING */
#if SBA
#include "sbaunify.h"
#endif
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