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yap-6.3/H/Yap.h

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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,v 1.38 2008-06-18 10:02:27 vsc Exp $ *
*************************************************************************/
#ifndef YAP_H
#define YAP_H 1
#if defined(YAPOR)
#error Do not explicitly define YAPOR
#endif /* YAPOR */
#if (defined(YAPOR_COPY) && (defined(YAPOR_COW) || defined(YAPOR_SBA) || defined(YAPOR_THREADS))) || (defined(YAPOR_COW) && (defined(YAPOR_SBA) || defined(YAPOR_THREADS))) || (defined(YAPOR_SBA) && defined(YAPOR_THREADS))
#error Do not define multiple or-parallel models
#endif /* (YAPOR_COPY && (YAPOR_COW || YAPOR_SBA || YAPOR_THREADS)) || (YAPOR_COW && (YAPOR_SBA || YAPOR_THREADS)) || (YAPOR_SBA || YAPOR_THREADS) */
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA) || defined(YAPOR_THREADS)
#define YAPOR 1
#define FIXED_STACKS 1
#endif /* YAPOR_COPY || YAPOR_COW || YAPOR_SBA || YAPOR_THREADS */
#if defined(TABLING) && (defined(YAPOR_COW) || defined(YAPOR_SBA) || defined(YAPOR_THREADS))
#error TABLING only works with YAPOR_COPY
#endif /* TABLING && (YAPOR_COW || YAPOR_SBA || YAPOR_THREADS) */
#if defined(THREADS) && (defined(YAPOR_COW) || defined(YAPOR_SBA) || defined(YAPOR_COPY))
#error THREADS only works with YAPOR_THREADS
#endif /* THREADS && (YAPOR_COW || YAPOR_SBA || YAPOR_COPY) */
#include "config.h"
#if defined(YAPOR) || defined(TABLING)
#include "opt.config.h"
#endif /* YAPOR || TABLING */
/*
#define RATIONAL_TREES 1
#define DEPTH_LIMIT 1
#define COROUTINING 1
#define ANALYST 1
*/
#define MULTI_ASSIGNMENT_VARIABLES 1
#if defined(YAPOR) || defined(THREADS)
#define MULTIPLE_STACKS 1
#define PARALLEL_YAP 1
#endif /* YAPOR || THREADS */
#if defined(YAPOR) || defined(TABLING)
#undef TRAILING_REQUIRES_BRANCH
#endif /* YAPOR || TABLING */
#if defined(TABLING) || defined(YAPOR_SBA)
#define FROZEN_STACKS 1
#endif /* TABLING || YAPOR_SBA */
#if defined(THREADS) || defined(SUPPORT_CONDOR)
#define USE_SYSTEM_MALLOC 1
#endif /* THREADS || SUPPORT_CONDOR */
#if defined(ANALYST) && defined(USE_THREADED_CODE)
#undef USE_THREADED_CODE
#endif /* ANALYST && USE_THREADED_CODE */
#if defined(COROUTINING) && !defined(TERM_EXTENSIONS)
#define TERM_EXTENSIONS 1
#endif /* COROUTINING && !TERM_EXTENSIONS */
/* Microsoft's Visual C++ Compiler */
#ifdef _MSC_VER /* adjust a config.h from mingw32 to work with vc++ */
#ifdef HAVE_GCC
#undef HAVE_GCC
#endif /* HAVE_GCC */
#ifdef USE_THREADED_CODE
#undef USE_THREADED_CODE
#endif /* USE_THREADED_CODE */
#define inline __inline
#define YAP_VERSION "YAP-6.3.0"
#define BIN_DIR "c:\\Yap\\bin"
#define LIB_DIR "c:\\Yap\\lib\\Yap"
#define SHARE_DIR "c:\\Yap\\share\\Yap"
#ifdef HOST_ALIAS
#undef HOST_ALIAS
#endif /* HOST_ALIAS */
#define HOST_ALIAS "i386-pc-win32"
#ifdef HAVE_IEEEFP_H
#undef HAVE_IEEEFP_H
#endif /* HAVE_IEEEFP_H */
#ifdef HAVE_UNISTD_H
#undef HAVE_UNISTD_H
#endif /* HAVE_UNISTD_H */
#ifdef HAVE_SYS_TIME_H
#undef HAVE_SYS_TIME_H
#endif /* HAVE_SYS_TIME_H */
#endif /* _MSC_VER */
#ifdef __MINGW32__
#ifndef _WIN32
#define _WIN32 1
#endif /* _WIN32 */
#endif /* __MINGW32__ */
#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 /* HAVE_GCC */
#ifndef ADTDEFS_C
#define EXTERN static
#else
#define EXTERN
#endif /* ADTDEFS_C */
/* 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 */
#ifdef THREADS
#if USE_PTHREAD_LOCKING
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif /* !_XOPEN_SOURCE */
#endif /* USE_PTHREAD_LOCKING */
#include <pthread.h>
#endif /* THREADS */
#if SIZEOF_INT_P==4
#if SIZEOF_INT==4
/* */ typedef int Int;
/* */ typedef unsigned int UInt;
#define Int_FORMAT "%d"
#define UInt_FORMAT "%u"
#elif SIZEOF_LONG_INT==4
/* */ typedef long int Int;
/* */ typedef unsigned long int UInt;
#define Int_FORMAT "%ld"
#define UInt_FORMAT "%lu"
#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;
#define Int_FORMAT "%d"
#define UInt_FORMAT "%u"
#elif SIZEOF_LONG_INT==8
/* */ typedef long int Int;
/* */ typedef unsigned long int UInt;
#define Int_FORMAT "%ld"
#define UInt_FORMAT "%lu"
# elif SIZEOF_LONG_LONG_INT==8
/* */ typedef long long int Int;
/* */ typedef unsigned long long int UInt;
#define Int_FORMAT "%I64d"
#define UInt_FORMAT "%I64u"
# 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 unsigned 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
#ifdef __GNUC__
typedef long long int YAP_LONG_LONG;
typedef unsigned long long int YAP_ULONG_LONG;
#else
typedef long int YAP_LONG_LONG;
typedef unsigned long int YAP_ULONG_LONG;
#endif
#if HAVE_SIGPROF && (defined(__linux__) || defined(__APPLE__))
#define LOW_PROF 1
#endif
/* #define FORCE_SECOND_QUADRANT 1 */
#if defined(FORCE_SECOND_QUADRANT)
#define IN_SECOND_QUADRANT 1
#define MMAP_ADDR 0x42000000
#endif /* FORCE_SECOND_QUADRANT */
#if !defined(IN_SECOND_QUADRANT)
#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(mips) || defined(__APPLE__) || defined(__DragonFly__)
#if defined(YAPOR) && defined(__alpha)
#define MMAP_ADDR 0x40000000
#elif defined(mips)
#define MMAP_ADDR 0x02000000
#elif defined(__APPLE__) && __LP64__
// this address is high enough that it is likely not to confuse Apple's malloc debugger; lowest possible is 0x100200000
#define MMAP_ADDR 0x200000000
#elif defined(__APPLE__) && !__LP64__
#define MMAP_ADDR 0x20000000
#elif defined(__powerpc__)
#define MMAP_ADDR 0x20000000
#else
#define MMAP_ADDR 0x10000000
#endif /* YAPOR && __alpha */
#elif __svr4__ || defined(__SVR4)
#define MMAP_ADDR 0x02000000
#endif /* __linux__ || __FreeBSD__ || __NetBSD__ || mips || __APPLE__ || __DragonFly__ */
#endif /* !IN_SECOND_QUADRANT */
/* #define RANDOMIZE_START_ADDRESS 1 */
#ifdef USE_SYSTEM_MALLOC
#define HEAP_INIT_BASE 0L
#define AtomBase NULL
#else /* !USE_SYSTEM_MALLOC */
#if defined(MMAP_ADDR) && (defined(USE_MMAP) || USE_SHMAT) && !defined(__simplescalar__) && !defined(RANDOMIZE_START_ADDRESS)
#define HEAP_INIT_BASE (MMAP_ADDR)
#define AtomBase ((char *)MMAP_ADDR)
#else /*! (MMAP_ADDR && (USE_MMAP || USE_SHMAT) && !__simplescalar__ && !RANDOMIZE_START_ADDRESS) */
#define HEAP_INIT_BASE ((CELL)Yap_HeapBase)
#define AtomBase (Yap_HeapBase)
#endif /* MMAP_ADDR && (USE_MMAP || USE_SHMAT) && !__simplescalar__ && !RANDOMIZE_START_ADDRESS */
#endif /* USE_SYSTEM_MALLOC */
#ifndef SHORT_ADDRESSES
# define LONG_ADDRESSES 1
#else
# define LONG_ADDRESSES 0
#endif
#ifndef ALIGN_LONGS
#define ALIGN_LONGS 1
#endif
#define K1 ((CELL)1024)
#define K16 ((CELL)(1024*64))
#define K64 ((CELL)(1024*64))
#define M1 ((CELL)(1024*1024))
#define M2 ((CELL)(2048*1024))
/*************************************************************************************************
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)
#define ALIGN_YAPTYPE(X,TYPE) (((CELL)(X)+(sizeof(TYPE)-1)) & ~(sizeof(TYPE)-1))
/*************************************************************************************************
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>
#elif USE_PTHREAD_LOCKING || defined(__CYGWIN__)
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif
#include <locks_pthread.h>
typedef pthread_mutex_t lockvar;
typedef pthread_rwlock_t rwlock_t;
#elif defined(i386)|| defined(__x86_64__)
typedef volatile int lockvar;
#include <locks_x86.h>
#elif defined(sparc) || defined(__sparc)
typedef volatile int lockvar;
#include <locks_sparc.h>
#elif defined(mips)
typedef volatile int lockvar;
#include <locks_mips.h>
#elif defined(__alpha)
typedef volatile int lockvar;
#include <locks_alpha.h>
#else
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif
typedef pthread_mutex_t lockvar;
typedef pthread_rwlock_t rwlock_t;
#include <locks_pthread.h>
#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 <locks_mips_funcs.h>
#endif
#ifdef __alpha
#include <locks_alpha_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
/* Support for arrays */
#include "arrays.h"
/* Types of Errors */
typedef enum
{
YAP_NO_ERROR,
FATAL_ERROR,
INTERNAL_ERROR,
INTERNAL_COMPILER_ERROR,
PURE_ABORT,
CALL_COUNTER_UNDERFLOW,
/* ISO_ERRORS */
CONSISTENCY_ERROR,
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_ENCODING,
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_KEY,
EXISTENCE_ERROR_SOURCE_SINK,
EXISTENCE_ERROR_STREAM,
EXISTENCE_ERROR_VARIABLE,
INSTANTIATION_ERROR,
INTERRUPT_ERROR,
OPERATING_SYSTEM_ERROR,
OUT_OF_HEAP_ERROR,
OUT_OF_STACK_ERROR,
OUT_OF_TRAIL_ERROR,
OUT_OF_ATTVARS_ERROR,
OUT_OF_AUXSPACE_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,
PRED_ENTRY_COUNTER_UNDERFLOW,
REPRESENTATION_ERROR_CHARACTER,
REPRESENTATION_ERROR_CHARACTER_CODE,
REPRESENTATION_ERROR_MAX_ARITY,
REPRESENTATION_ERROR_VARIABLE,
RESOURCE_ERROR_HUGE_INT,
RESOURCE_ERROR_MAX_STREAMS,
RESOURCE_ERROR_MAX_THREADS,
RESOURCE_ERROR_MEMORY,
RESOURCE_ERROR_STACK,
RETRY_COUNTER_UNDERFLOW,
SYNTAX_ERROR,
SYSTEM_ERROR,
TYPE_ERROR_ARRAY,
TYPE_ERROR_ATOM,
TYPE_ERROR_ATOMIC,
TYPE_ERROR_BYTE,
TYPE_ERROR_CALLABLE,
TYPE_ERROR_CHAR,
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_STRING,
TYPE_ERROR_UBYTE,
TYPE_ERROR_UCHAR,
TYPE_ERROR_VARIABLE,
UNKNOWN_ERROR
} yap_error_number;
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,
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,
STACK_DUMP_ON_ERROR_FLAG = 17,
GENERATE_DEBUG_INFO_FLAG = 18,
INDEXING_MODE_FLAG = 19,
TABLING_MODE_FLAG = 20,
VARS_CAN_HAVE_QUOTE_FLAG = 21,
QUIET_MODE_FLAG = 22,
/* let this be the last one */
LAST_FLAG = 23
} 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
typedef enum
{
INDEX_MODE_OFF = 0,
INDEX_MODE_SINGLE = 1,
INDEX_MODE_COMPACT = 2,
INDEX_MODE_MULTI = 3,
INDEX_MODE_MAX = 4
} index_mode_options;
typedef enum
{
YAP_CREEP_SIGNAL = 0x1, /* received a creep */
YAP_WAKEUP_SIGNAL = 0x2, /* goals to wake up */
YAP_ALARM_SIGNAL = 0x4, /* received an alarm */
YAP_HUP_SIGNAL = 0x8, /* received SIGHUP */
YAP_USR1_SIGNAL = 0x10, /* received SIGUSR1 */
YAP_USR2_SIGNAL = 0x20, /* received SIGUSR2 */
YAP_INT_SIGNAL = 0x40, /* received SIGINT (unused for now) */
YAP_ITI_SIGNAL = 0x80, /* received inter thread signal */
YAP_TROVF_SIGNAL = 0x100, /* received trail overflow */
YAP_CDOVF_SIGNAL = 0x200, /* received code overflow */
YAP_STOVF_SIGNAL = 0x400, /* received stack overflow */
YAP_TRACE_SIGNAL = 0x800, /* received start trace */
YAP_DEBUG_SIGNAL = 0x1000, /* received start debug */
YAP_BREAK_SIGNAL = 0x2000, /* received break signal */
YAP_STACK_DUMP_SIGNAL = 0x4000, /* received stack dump signal */
YAP_STATISTICS_SIGNAL = 0x8000, /* received statistics */
YAP_DELAY_CREEP_SIGNAL = 0x10000, /* received a creep but should not do it */
YAP_AGC_SIGNAL = 0x20000, /* call atom garbage collector asap */
YAP_PIPE_SIGNAL = 0x40000, /* call atom garbage collector asap */
YAP_VTALARM_SIGNAL = 0x80000, /* received SIGVTALARM */
YAP_FAIL_SIGNAL = 0x100000 /* P = FAILCODE */
} yap_signals;
#define NUMBER_OF_YAP_FLAGS LAST_FLAG
/*************************************************************************************************
prototypes
*************************************************************************************************/
#include "Yapproto.h"
/***********************************************************************/
/*
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(__APPLE__) && !defined(__LP64__)) || defined(_WIN32) || defined(sparc) || defined(__sparc) || defined(mips) || defined(__FreeBSD__) || defined(_POWER) || defined(__POWERPC__) || defined(__linux__) || defined(IN_SECOND_QUADRANT) || defined(__CYGWIN__)) || defined(__NetBSD__) || defined(__DragonFly__)
#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
#if !GC_NO_TAGS
#define MBIT 0x80000000
#define RBIT 0x40000000
#if IN_SECOND_QUADRANT
#define INVERT_RBIT 1 /* RBIT is 1 by default */
#endif
#endif /* !GC_NO_TAGS */
#else
#if !GC_NO_TAGS
#if defined(YAPOR_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 /* !GC_NO_TAGS */
#endif
#define TermSize sizeof(Term)
/*************************************************************************************************
variables related to memory allocation
*************************************************************************************************/
/* must be before TermExt.h */
extern ADDR Yap_HeapBase;
/* This is ok for Linux, should be ok for everyone */
#define YAP_FILENAME_MAX 1024
#define MAX_ERROR_MSG_SIZE YAP_FILENAME_MAX
/*************************************************************************************************
Debugging Support
*************************************************************************************************/
#ifdef DEBUG
extern int Yap_output_msg;
#endif
/*************************************************************************************************
???
*************************************************************************************************/
#define MkVarTerm() MkVarTerm__( PASS_REGS1 )
#define MkPairTerm(A,B) MkPairTerm__( A, B PASS_REGS )
/*************************************************************************************************
applies to unbound variables
*************************************************************************************************/
inline EXTERN Term *VarOfTerm (Term t);
inline EXTERN Term *
VarOfTerm (Term t)
{
return (Term *) (t);
}
#ifdef YAPOR_SBA
inline EXTERN Term MkVarTerm__ ( USES_REGS1 );
inline EXTERN Term
MkVarTerm__ ( USES_REGS1 )
{
return (Term) ((*H = 0, H++));
}
inline EXTERN int IsUnboundVar (Term *);
inline EXTERN int
IsUnboundVar (Term * t)
{
return (int) (*(t) == 0);
}
#else
inline EXTERN Term MkVarTerm__ ( USES_REGS1 );
inline EXTERN Term
MkVarTerm__ ( USES_REGS1 )
{
return (Term) ((*H = (CELL) H, H++));
}
inline EXTERN int IsUnboundVar (Term *);
inline EXTERN int
IsUnboundVar (Term * t)
{
return (int) (*(t) == (Term) (t));
}
#endif
inline EXTERN CELL *PtrOfTerm (Term);
inline EXTERN CELL *
PtrOfTerm (Term t)
{
return (CELL *) (*(CELL *) (t));
}
inline EXTERN Functor FunctorOfTerm (Term);
inline EXTERN Functor
FunctorOfTerm (Term t)
{
return (Functor) (*RepAppl (t));
}
#if USE_LOW32_TAGS
inline EXTERN Term MkAtomTerm (Atom);
inline EXTERN Term
MkAtomTerm (Atom a)
{
return (Term) (AtomTag | (CELL) (a));
}
inline EXTERN Atom AtomOfTerm (Term t);
inline EXTERN Atom
AtomOfTerm (Term t)
{
return (Atom) ((~AtomTag & (CELL) (t)));
}
#else
inline EXTERN Term MkAtomTerm (Atom);
inline EXTERN Term
MkAtomTerm (Atom a)
{
return (Term) (TAGGEDA ((CELL)AtomTag, (CELL) (a)));
}
inline EXTERN Atom AtomOfTerm (Term t);
inline EXTERN Atom
AtomOfTerm (Term t)
{
return (Atom) (NonTagPart (t));
}
#endif
inline EXTERN int IsAtomTerm (Term);
inline EXTERN int
IsAtomTerm (Term t)
{
return (int) (CHKTAG ((t), AtomTag));
}
inline EXTERN Term MkIntTerm (Int);
inline EXTERN Term
MkIntTerm (Int n)
{
return (Term) (TAGGED (NumberTag, (n)));
}
/*
A constant to subtract or add to a well-known term, we assume no
overflow problems are possible
*/
inline EXTERN Term MkIntConstant (Int);
inline EXTERN Term
MkIntConstant (Int n)
{
return (Term) (NONTAGGED (NumberTag, (n)));
}
inline EXTERN int IsIntTerm (Term);
inline EXTERN int
IsIntTerm (Term t)
{
return (int) (CHKTAG ((t), NumberTag));
}
EXTERN inline Term STD_PROTO (MkPairTerm__, (Term, Term CACHE_TYPE) );
EXTERN inline Term
MkPairTerm__ (Term head, Term tail USES_REGS)
{
register CELL *p = H;
H[0] = head;
H[1] = tail;
H += 2;
return (AbsPair (p));
}
/* 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
/*
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 EXTERN Term MkIntegerTerm (Int);
inline EXTERN Term
MkIntegerTerm (Int n)
{
return (Term) (IntInBnd (n) ? MkIntTerm (n) : MkLongIntTerm (n));
}
inline EXTERN int IsIntegerTerm (Term);
inline EXTERN int
IsIntegerTerm (Term t)
{
return (int) (IsIntTerm (t) || IsLongIntTerm (t));
}
inline EXTERN Int IntegerOfTerm (Term);
inline EXTERN Int
IntegerOfTerm (Term t)
{
return (Int) (IsIntTerm (t) ? IntOfTerm (t) : LongIntOfTerm (t));
}
/*************************************************************************************************
variables concerned with atoms table
*************************************************************************************************/
#define MaxHash 3333
#define MaxWideHash (MaxHash/10+1)
#define FAIL_RESTORE 0
#define DO_EVERYTHING 1
#define DO_ONLY_CODE 2
/*************************************************************************************************
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
/*************************************************************************************************
Prolog may be in several modes
*************************************************************************************************/
typedef enum
{
BootMode = 0x1, /* if booting or restoring */
UserMode = 0x2, /* Normal mode */
CritMode = 0x4, /* If we are meddling with the heap */
AbortMode = 0x8, /* expecting to abort */
InterruptMode = 0x10, /* under an interrupt */
InErrorMode = 0x20, /* under an interrupt */
ConsoleGetcMode = 0x40, /* blocked reading from console */
ExtendStackMode = 0x80, /* trying to extend stack */
GrowHeapMode = 0x100, /* extending Heap */
GrowStackMode = 0x200, /* extending Stack */
GCMode = 0x400, /* doing Garbage Collecting */
ErrorHandlingMode = 0x800, /* doing error handling */
CCallMode = 0x1000, /* In c Call */
UnifyMode = 0x2000, /* In Unify Code */
UserCCallMode = 0x4000, /* In User C-call Code */
MallocMode = 0x8000, /* Doing malloc, realloc, free */
SystemMode = 0x10000, /* in system mode */
AsyncIntMode = 0x20000, /* YAP has just been interrupted from the outside */
InReadlineMode = 0x40000 /* YAP has just been interrupted from the outside */
} prolog_exec_mode;
/*************************************************************************************************
number of modules
*************************************************************************************************/
#define DefaultMaxModules 256
/*************************************************************************************************
Critical sections
*************************************************************************************************/
#ifdef YAPOR
#define YAPEnterCriticalSection() \
{ \
if (worker_id != GLOBAL_locks_who_locked_heap) { \
LOCK(GLOBAL_locks_heap_access); \
GLOBAL_locks_who_locked_heap = worker_id; \
} \
LOCAL_PrologMode |= CritMode; \
LOCAL_CritLocks++; \
}
#define YAPLeaveCriticalSection() \
{ \
LOCAL_CritLocks--; \
if (!LOCAL_CritLocks) { \
LOCAL_PrologMode &= ~CritMode; \
if (LOCAL_PrologMode & InterruptMode) { \
LOCAL_PrologMode &= ~InterruptMode; \
Yap_ProcessSIGINT(); \
} \
if (LOCAL_PrologMode & AbortMode) { \
LOCAL_PrologMode &= ~AbortMode; \
Yap_Error(PURE_ABORT, 0, ""); \
} \
GLOBAL_locks_who_locked_heap = MAX_WORKERS; \
UNLOCK(GLOBAL_locks_heap_access); \
} \
}
#elif defined(THREADS)
#define YAPEnterCriticalSection() \
{ \
/* LOCK(BGL); */ \
LOCAL_PrologMode |= CritMode; \
}
#define YAPLeaveCriticalSection() \
{ \
LOCAL_PrologMode &= ~CritMode; \
if (LOCAL_PrologMode & InterruptMode) { \
LOCAL_PrologMode &= ~InterruptMode; \
Yap_ProcessSIGINT(); \
} \
if (LOCAL_PrologMode & AbortMode) { \
LOCAL_PrologMode &= ~AbortMode; \
Yap_Error(PURE_ABORT, 0, ""); \
} \
/* UNLOCK(BGL); */ \
}
#else
#define YAPEnterCriticalSection() \
{ \
LOCAL_PrologMode |= CritMode; \
LOCAL_CritLocks++; \
}
#define YAPLeaveCriticalSection() \
{ \
LOCAL_CritLocks--; \
if (!LOCAL_CritLocks) { \
LOCAL_PrologMode &= ~CritMode; \
if (LOCAL_PrologMode & InterruptMode) { \
LOCAL_PrologMode &= ~InterruptMode; \
Yap_ProcessSIGINT(); \
} \
if (LOCAL_PrologMode & AbortMode) { \
LOCAL_PrologMode &= ~AbortMode; \
Yap_Error(PURE_ABORT, 0, ""); \
} \
} \
}
#endif /* YAPOR */
/* when we are calling the InitStaff procedures */
#define AT_BOOT 0
#define AT_RESTORE 1
/*************************************************************************************************
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;
/*************************************************************************************************
execution mode
*************************************************************************************************/
typedef enum
{
INTERPRETED, /* interpreted */
MIXED_MODE_USER, /* mixed mode only for user predicates */
MIXED_MODE_ALL, /* mixed mode for all predicates */
COMPILE_USER, /* compile all user predicates*/
COMPILE_ALL /* compile all predicates */
} yap_exec_mode;
/*************************************************************************************************
slots
*************************************************************************************************/
static inline void
Yap_StartSlots( USES_REGS1 ) {
*--ASP = MkIntegerTerm(CurSlot);
*--ASP = MkIntTerm(0);
CurSlot = LCL0-ASP;
}
static inline void
Yap_CloseSlots( USES_REGS1 ) {
Int old_slots;
old_slots = IntOfTerm(ASP[0]);
ASP += (old_slots+1);
CurSlot = IntOfTerm(*ASP);
ASP++;
}
static inline Int
Yap_CurrentSlot( USES_REGS1 ) {
return IntOfTerm(ASP[0]);
}
/* pop slots when pruning */
static inline void
Yap_PopSlots( USES_REGS1 ) {
while (LCL0-CurSlot < ASP) {
Int old_slots;
CELL *ptr = LCL0-CurSlot;
old_slots = IntOfTerm(ptr[0]);
ptr += (old_slots+1);
CurSlot = IntOfTerm(*ptr);
}
}
/************************/
#ifdef THREADS
typedef struct thandle {
int in_use;
int zombie;
UInt ssize;
UInt tsize;
UInt sysize;
void *stack_address;
Term tdetach;
Term cmod, texit_mod;
struct DB_TERM *tgoal, *texit;
int id;
int ret;
REGSTORE *default_yaam_regs;
REGSTORE *current_yaam_regs;
struct pred_entry *local_preds;
pthread_t pthread_handle;
int ref_count;
#ifdef LOW_LEVEL_TRACER
long long int thread_inst_count;
int been_here1;
int been_here2;
#endif
#ifdef DEBUG
int been_here;
#endif
pthread_mutex_t tlock;
pthread_mutex_t tlock_status;
#if HAVE_GETRUSAGE||defined(_WIN32)
struct timeval *start_of_timesp;
struct timeval *last_timep;
#endif
} yap_thandle;
#endif /* THREADS */
#define GC_MAVARS_HASH_SIZE 512
typedef struct gc_ma_hash_entry_struct {
UInt timestmp;
#ifdef TABLING
tr_fr_ptr loc;
struct gc_ma_hash_entry_struct *more;
#endif
CELL* addr;
struct gc_ma_hash_entry_struct *next;
} gc_ma_hash_entry;
typedef int (*Agc_hook)(Atom);
typedef struct scratch_block_struct {
char *ptr;
UInt sz, msz;
} scratch_block;
/* scanner types */
#include "ScannerTypes.h"
/*************************************************************************************************
OPTYAP includes
*************************************************************************************************/
#if defined(YAPOR) || defined(TABLING)
#include "opt.structs.h"
#include "opt.proto.h"
#include "opt.macros.h"
#endif /* YAPOR || TABLING */
/*************************************************************************************************
GLOBAL and LOCAL variables
*************************************************************************************************/
#if defined(YAPOR_COPY) || defined(YAPOR_COW) || defined(YAPOR_SBA)
extern struct global_data *Yap_global;
extern long Yap_worker_area_size;
#else
extern struct global_data Yap_Global;
#define Yap_global (&Yap_Global)
#endif
#if defined(THREADS)
extern struct worker_local *Yap_local[MAX_THREADS];
#define REMOTE(wid) (Yap_local[wid])
#elif defined(YAPOR)
extern struct worker_local *Yap_local;
#define REMOTE(wid) (Yap_local + wid)
#else /* !THREADS && !YAPOR */
extern struct worker_local Yap_local;
#define REMOTE(wid) (&Yap_local)
#endif
#define YP_FILE FILE
#include "hglobals.h"
#include "dglobals.h"
#include "hlocals.h"
#include "dlocals.h"
/*************************************************************************************************
unification routines
*************************************************************************************************/
#ifdef YAPOR_SBA
#include "or.sba_amiops.h"
#include "or.sba_unify.h"
#else
#include "amiops.h"
#endif /* YAPOR_SBA */
/*************************************************************************************************
High level macros to access arguments
*************************************************************************************************/
inline EXTERN Term ArgOfTerm (int i, Term t);
inline EXTERN Term
ArgOfTerm (int i, Term t)
{
return (Term) (Derefa (RepAppl (t) + (i)));
}
inline EXTERN Term HeadOfTerm (Term);
inline EXTERN Term
HeadOfTerm (Term t)
{
return (Term) (Derefa (RepPair (t)));
}
inline EXTERN Term TailOfTerm (Term);
inline EXTERN Term
TailOfTerm (Term t)
{
return (Term) (Derefa (RepPair (t) + 1));
}
inline EXTERN Term ArgOfTermCell (int i, Term t);
inline EXTERN Term
ArgOfTermCell (int i, Term t)
{
return (Term) ((CELL) (RepAppl (t) + (i)));
}
inline EXTERN Term HeadOfTermCell (Term);
inline EXTERN Term
HeadOfTermCell (Term t)
{
return (Term) ((CELL) (RepPair (t)));
}
inline EXTERN Term TailOfTermCell (Term);
inline EXTERN Term
TailOfTermCell (Term t)
{
return (Term) ((CELL) (RepPair (t) + 1));
}
#endif /* YAP_H */
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