474 lines
18 KiB
C
474 lines
18 KiB
C
/* yap2swi.h */
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/*
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* Project: SWI emulation for Yap Prolog
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* Author: Steve Moyle and Vitor Santos Costa
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* Email: steve.moyle@comlab.ox.ac.uk
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* Date: 21 January 2002
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* Copyright (c) 2002 Steve Moyle and Vitor Santos Costa. All rights reserved.
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*/
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#ifndef _FLI_H_INCLUDED
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#define _FLI_H_INCLUDED
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//=== includes ===============================================================
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#include "config.h"
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#include <YapInterface.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <wchar.h>
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#if HAVE_TIME_H
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#include <time.h>
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#endif
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#ifndef X_API
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#if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(PL_KERNEL)
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#define X_API __declspec(dllexport)
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#else
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#define X_API
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#endif
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#endif
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/*******************************
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* EXPORT *
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*******************************/
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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See SWI-Prolog.h, containing the same code for an explanation on this
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stuff.
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#ifndef _PL_EXPORT_DONE
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#define _PL_EXPORT_DONE
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#if (defined(__WINDOWS__) || defined(__CYGWIN__) || defined(__MINGW32__)) && !defined(__LCC__)
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#define HAVE_DECLSPEC
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#endif
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#ifdef HAVE_DECLSPEC
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# ifdef PL_KERNEL
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#define PL_EXPORT(type) __declspec(dllexport) type
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#define PL_EXPORT_DATA(type) __declspec(dllexport) type
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#define install_t void
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# else
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# ifdef __BORLANDC__
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#define PL_EXPORT(type) type _stdcall
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#define PL_EXPORT_DATA(type) extern type
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# else
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#define PL_EXPORT(type) extern type
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#define PL_EXPORT_DATA(type) __declspec(dllimport) type
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# endif
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#define install_t __declspec(dllexport) void
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# endif
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#else /*HAVE_DECLSPEC*/
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#define PL_EXPORT(type) extern type
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#define PL_EXPORT_DATA(type) extern type
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#define install_t void
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#endif /*HAVE_DECLSPEC*/
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#endif /*_PL_EXPORT_DONE*/
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typedef unsigned long term_t;
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typedef void *module_t;
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typedef void *record_t;
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typedef unsigned long atom_t;
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typedef YAP_Term *predicate_t;
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typedef struct open_query_struct *qid_t;
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typedef long functor_t;
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typedef int (*PL_agc_hook_t)(atom_t);
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typedef unsigned long foreign_t; /* return type of foreign functions */
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typedef wchar_t pl_wchar_t; /* wide character support */
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#ifdef WIN32
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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#else
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#include <inttypes.h> /* more portable than stdint.h */
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#endif
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typedef uintptr_t PL_fid_t; /* opaque foreign context handle */
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typedef void *function_t;
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#define fid_t PL_fid_t /* avoid AIX name-clash */
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typedef struct _PL_extension
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{ char *predicate_name; /* Name of the predicate */
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short arity; /* Arity of the predicate */
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function_t function; /* Implementing functions */
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short flags; /* Or of PL_FA_... */
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} PL_extension;
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typedef struct
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{ unsigned long local_size; /* Stack sizes */
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unsigned long global_size;
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unsigned long trail_size;
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unsigned long argument_size;
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char * alias; /* alias name */
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int (*cancel)(int id); /* cancel function */
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void * reserved[5]; /* reserved for extensions */
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} PL_thread_attr_t;
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typedef void *PL_engine_t;
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#define PL_FA_NOTRACE (0x01) /* foreign cannot be traced */
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#define PL_FA_TRANSPARENT (0x02) /* foreign is module transparent */
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#define PL_FA_NONDETERMINISTIC (0x04) /* foreign is non-deterministic */
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#define PL_FA_VARARGS (0x08) /* call using t0, ac, ctx */
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#define PL_FA_CREF (0x10) /* Internal: has clause-reference */
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#define PL_FA_ISO (0x20) /* Internal: ISO core predicate */
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/* begin from pl-itf.h */
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#define PL_VARIABLE (1) /* nothing */
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#define PL_ATOM (2) /* const char * */
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#define PL_INTEGER (3) /* int */
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#define PL_FLOAT (4) /* double */
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#define PL_STRING (5) /* const char * */
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#define PL_TERM (6)
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/* PL_unify_term() */
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#define PL_FUNCTOR (10) /* functor_t, arg ... */
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#define PL_LIST (11) /* length, arg ... */
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#define PL_CHARS (12) /* const char * */
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#define PL_POINTER (13) /* void * */
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/* PlArg::PlArg(text, type) */
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#define PL_CODE_LIST (14) /* [ascii...] */
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#define PL_CHAR_LIST (15) /* [h,e,l,l,o] */
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#define PL_BOOL (16) /* PL_set_feature() */
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#define PL_FUNCTOR_CHARS (17) /* PL_unify_term() */
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#define PL_PREDICATE_INDICATOR (18) /* predicate_t (Procedure) */
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#define PL_SHORT (19) /* short */
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#define PL_INT (20) /* int */
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#define PL_LONG (21) /* long */
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#define PL_DOUBLE (22) /* double */
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#define PL_NCHARS (23) /* unsigned, const char * */
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#define PL_UTF8_CHARS (24) /* const char * */
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#define PL_UTF8_STRING (25) /* const char * */
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#define PL_INT64 (26) /* int64_t */
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#define PL_NUTF8_CHARS (27) /* unsigned, const char * */
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#define PL_NUTF8_CODES (29) /* unsigned, const char * */
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#define PL_NUTF8_STRING (30) /* unsigned, const char * */
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#define PL_NWCHARS (31) /* unsigned, const wchar_t * */
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#define PL_NWCODES (32) /* unsigned, const wchar_t * */
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#define PL_NWSTRING (33) /* unsigned, const wchar_t * */
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#define PL_MBCHARS (34) /* const char * */
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#define PL_MBCODES (35) /* const char * */
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#define PL_MBSTRING (36) /* const char * */
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#define PL_INTPTR (37) /* intptr_t */
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#define PL_CHAR (38) /* int */
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#define PL_CODE (39) /* int */
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#define PL_BYTE (40) /* int */
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#define CVT_ATOM 0x0001
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#define CVT_STRING 0x0002
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#define CVT_LIST 0x0004
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#define CVT_INTEGER 0x0008
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#define CVT_FLOAT 0x0010
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#define CVT_VARIABLE 0x0020
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#define CVT_NUMBER (CVT_INTEGER|CVT_FLOAT)
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#define CVT_ATOMIC (CVT_NUMBER|CVT_ATOM|CVT_STRING)
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#define CVT_WRITE 0x0040 /* as of version 3.2.10 */
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#define CVT_ALL (CVT_ATOMIC|CVT_LIST)
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#define CVT_MASK 0x00ff
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#define CVT_EXCEPTION 0x10000
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#define BUF_DISCARDABLE 0x0000
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#define BUF_RING 0x0100
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#define BUF_MALLOC 0x0200
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#define PL_ENGINE_CURRENT ((PL_engine_t)-1)
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#define PL_ENGINE_SET 0 /* engine set successfully */
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#define PL_ENGINE_INVAL 2 /* engine doesn't exist */
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#define PL_ENGINE_INUSE 3 /* engine is in use */
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#define PL_ACTION_TRACE 1 /* switch to trace mode */
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#define PL_ACTION_DEBUG 2 /* switch to debug mode */
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#define PL_ACTION_BACKTRACE 3 /* show a backtrace (stack dump) */
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#define PL_ACTION_BREAK 4 /* create a break environment */
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#define PL_ACTION_HALT 5 /* halt Prolog execution */
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#define PL_ACTION_ABORT 6 /* generate a Prolog abort */
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/* 7: Obsolete PL_ACTION_SYMBOLFILE */
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#define PL_ACTION_WRITE 8 /* write via Prolog i/o buffer */
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#define PL_ACTION_FLUSH 9 /* Flush Prolog i/o buffer */
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#define PL_ACTION_GUIAPP 10 /* Win32: set when this is a gui */
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#define PL_ACTION_ATTACH_CONSOLE 11 /* MT: Attach a console */
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Foreign language interface definitions. Note that these macros MUST be
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consistent with the definitions in pl-itf.h, which is included with
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users foreign language code.
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#define NOTRACE PL_FA_NOTRACE
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#define META PL_FA_TRANSPARENT
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#define NDET PL_FA_NONDETERMINISTIC
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#define VA PL_FA_VARARGS
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#define CREF PL_FA_CREF
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#define ISO PL_FA_ISO
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typedef enum
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{ FRG_FIRST_CALL = 0, /* Initial call */
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FRG_CUTTED = 1, /* Context was cutted */
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FRG_REDO = 2 /* Normal redo */
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} frg_code;
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struct foreign_context
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{ uintptr_t context; /* context value */
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frg_code control; /* FRG_* action */
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struct PL_local_data *engine; /* invoking engine */
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};
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typedef struct foreign_context *control_t;
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#define PRED_IMPL(name, arity, fname, flags) \
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foreign_t \
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pl_ ## fname ## _va(term_t PL__t0, int PL__ac, control_t PL__ctx)
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#define Arg(N) (PL__t0+((n)-1))
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#define A1 (PL__t0)
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#define A2 (PL__t0+1)
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#define A3 (PL__t0+2)
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#define A3 (PL__t0+2)
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#define A4 (PL__t0+3)
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#define A5 (PL__t0+4)
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#define A6 (PL__t0+5)
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#define A7 (PL__t0+6)
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#define A8 (PL__t0+7)
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#define A9 (PL__t0+8)
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#define A10 (PL__t0+9)
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#define CTX_CNTRL ForeignControl(PL__ctx)
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#define CTX_PTR ForeignContextPtr(PL__ctx)
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#define CTX_INT ForeignContextInt(PL__ctx)
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#define CTX_ARITY PL__ac
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#define BeginPredDefs(id) \
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PL_extension PL_predicates_from_ ## id[] = {
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#define PRED_DEF(name, arity, fname, flags) \
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{ name, arity, pl_ ## fname ## _va, (flags)|PL_FA_VARARGS },
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#define EndPredDefs \
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{ NULL, 0, NULL, 0 } \
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};
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#define FRG_REDO_MASK 0x00000003L
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#define FRG_REDO_BITS 2
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#define REDO_INT 0x02 /* Returned an integer */
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#define REDO_PTR 0x03 /* returned a pointer */
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#define ForeignRedoIntVal(v) (((uintptr_t)(v)<<FRG_REDO_BITS)|REDO_INT)
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#define ForeignRedoPtrVal(v) (((uintptr_t)(v))|REDO_PTR)
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#define ForeignRedoInt(v) return ForeignRedoIntVal(v)
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#define ForeignRedoPtr(v) return ForeignRedoPtrVal(v)
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#define ForeignControl(h) ((h)->control)
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#define ForeignContextInt(h) ((intptr_t)(h)->context)
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#define ForeignContextPtr(h) ((void *)(h)->context)
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#define ForeignEngine(h) ((h)->engine)
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#define FRG(n, a, f, flags) { n, a, f, flags }
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/* end from pl-itf.h */
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/*******************************
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* CALL-BACK *
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*******************************/
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#ifdef PL_KERNEL
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#define PL_Q_DEBUG 0x01 /* = TRUE for backward compatibility */
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#endif
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#define PL_Q_NORMAL 0x02 /* normal usage */
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#define PL_Q_NODEBUG 0x04 /* use this one */
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#define PL_Q_CATCH_EXCEPTION 0x08 /* handle exceptions in C */
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#define PL_Q_PASS_EXCEPTION 0x10 /* pass to parent environment */
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#ifdef PL_KERNEL
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#define PL_Q_DETERMINISTIC 0x20 /* call was deterministic */
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#endif
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#define PL_fail return FALSE /* fail */
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#define PL_succeed return TRUE /* success */
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extern X_API PL_agc_hook_t PL_agc_hook(PL_agc_hook_t);
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extern X_API char* PL_atom_chars(atom_t);
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extern X_API term_t PL_copy_term_ref(term_t);
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extern X_API term_t PL_new_term_ref(void);
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extern X_API term_t PL_new_term_refs(int);
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extern X_API void PL_reset_term_refs(term_t);
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/* begin PL_get_* functions =============================*/
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extern X_API int PL_get_arg(int, term_t, term_t);
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extern X_API int PL_get_atom(term_t, atom_t *);
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extern X_API int PL_get_atom_chars(term_t, char **);
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extern X_API int PL_get_bool(term_t, int *);
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extern X_API int PL_get_chars(term_t, char **, unsigned);
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extern X_API int PL_get_nchars(term_t, size_t *, char **, unsigned);
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extern X_API int PL_get_wchars(term_t, size_t *, wchar_t **, unsigned);
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extern X_API int PL_get_functor(term_t, functor_t *);
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extern X_API int PL_get_float(term_t, double *);
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extern X_API int PL_get_head(term_t, term_t);
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extern X_API int PL_get_int64(term_t, int64_t *);
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extern X_API int PL_get_integer(term_t, int *);
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extern X_API int PL_get_list(term_t, term_t, term_t);
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extern X_API int PL_get_long(term_t, long *);
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extern X_API int PL_get_list_chars(term_t, char **, unsigned);
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extern X_API int PL_get_module(term_t, module_t *);
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extern X_API module_t PL_context(void);
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extern X_API int PL_strip_module(term_t, module_t *, term_t);
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extern X_API atom_t PL_module_name(module_t);
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extern X_API module_t PL_new_module(atom_t);
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extern X_API int PL_get_name_arity(term_t, atom_t *, int *);
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extern X_API int PL_get_nil(term_t);
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extern X_API int PL_get_pointer(term_t, void **);
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extern X_API int PL_get_string(term_t, char **, int *);
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extern X_API int PL_get_tail(term_t, term_t);
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/* end PL_get_* functions =============================*/
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/* begin PL_new_* functions =============================*/
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extern X_API atom_t PL_new_atom(const char *);
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extern X_API atom_t PL_new_atom_wchars(int, const pl_wchar_t *);
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extern X_API char *PL_atom_nchars(atom_t, size_t *);
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extern X_API pl_wchar_t *PL_atom_wchars(atom_t, size_t *);
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extern X_API functor_t PL_new_functor(atom_t, int);
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extern X_API atom_t PL_functor_name(functor_t);
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extern X_API int PL_functor_arity(functor_t);
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/* end PL_new_* functions =============================*/
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/* begin PL_put_* functions =============================*/
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extern X_API void PL_cons_functor(term_t, functor_t,...);
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extern X_API void PL_cons_functor_v(term_t, functor_t,term_t);
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extern X_API void PL_cons_list(term_t, term_t, term_t);
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extern X_API void PL_put_atom(term_t, atom_t);
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extern X_API void PL_put_atom_chars(term_t, const char *);
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extern X_API void PL_put_float(term_t, double);
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extern X_API void PL_put_functor(term_t, functor_t t);
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extern X_API void PL_put_int64(term_t, int64_t);
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extern X_API void PL_put_integer(term_t, long);
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extern X_API void PL_put_list(term_t);
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extern X_API void PL_put_list_chars(term_t, const char *);
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extern X_API void PL_put_nil(term_t);
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extern X_API void PL_put_pointer(term_t, void *);
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extern X_API void PL_put_string_chars(term_t, const char *);
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extern X_API void PL_put_term(term_t, term_t);
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extern X_API void PL_put_variable(term_t);
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extern X_API int PL_compare(term_t, term_t);
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/* end PL_put_* functions =============================*/
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/* begin PL_unify_* functions =============================*/
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extern X_API int PL_unify(term_t, term_t);
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extern X_API int PL_unify_atom(term_t, atom_t);
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extern X_API int PL_unify_atom_chars(term_t, const char *);
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extern X_API int PL_unify_atom_nchars(term_t, size_t len, const char *);
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extern X_API int PL_unify_float(term_t, double);
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extern X_API int PL_unify_functor(term_t, functor_t);
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extern X_API int PL_unify_int64(term_t, int64_t);
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extern X_API int PL_unify_integer(term_t, long);
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extern X_API int PL_unify_list(term_t, term_t, term_t);
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extern X_API int PL_unify_list_chars(term_t, const char *);
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extern X_API int PL_unify_nil(term_t);
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extern X_API int PL_unify_pointer(term_t, void *);
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extern X_API int PL_unify_string_chars(term_t, const char *);
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extern X_API int PL_unify_term(term_t,...);
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extern X_API int PL_unify_chars(term_t, int, size_t, const char *);
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extern X_API int PL_unify_chars_diff(term_t, term_t, int, size_t, const char *);
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extern X_API int PL_unify_wchars(term_t, int, size_t, const pl_wchar_t *);
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extern X_API int PL_unify_wchars_diff(term_t, term_t, int, size_t, const pl_wchar_t *);
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/* end PL_unify_* functions =============================*/
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/* begin PL_is_* functions =============================*/
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extern X_API int PL_is_atom(term_t);
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extern X_API int PL_is_atomic(term_t);
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extern X_API int PL_is_compound(term_t);
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extern X_API int PL_is_float(term_t);
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extern X_API int PL_is_functor(term_t, functor_t);
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extern X_API int PL_is_integer(term_t);
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extern X_API int PL_is_list(term_t);
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extern X_API int PL_is_number(term_t);
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extern X_API int PL_is_string(term_t);
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extern X_API int PL_is_variable(term_t);
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extern X_API int PL_term_type(term_t);
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extern X_API int PL_is_inf(term_t);
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/* end PL_is_* functions =============================*/
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extern X_API void PL_halt(int);
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extern X_API int PL_initialise(int, char **);
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extern X_API int PL_is_initialised(int *, char ***);
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extern X_API void PL_close_foreign_frame(fid_t);
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extern X_API void PL_discard_foreign_frame(fid_t);
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extern X_API void PL_rewind_foreign_frame(fid_t);
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extern X_API fid_t PL_open_foreign_frame(void);
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extern X_API int PL_raise_exception(term_t);
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extern X_API void PL_register_atom(atom_t);
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extern X_API void PL_unregister_atom(atom_t);
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extern X_API predicate_t PL_pred(functor_t, module_t);
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extern X_API predicate_t PL_predicate(const char *, int, const char *);
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extern X_API void PL_predicate_info(predicate_t, atom_t *, int *, module_t *);
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extern X_API qid_t PL_open_query(module_t, int, predicate_t, term_t);
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extern X_API int PL_next_solution(qid_t);
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extern X_API void PL_cut_query(qid_t);
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extern X_API void PL_close_query(qid_t);
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extern X_API term_t PL_exception(qid_t);
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extern X_API int PL_call_predicate(module_t, int, predicate_t, term_t);
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extern X_API int PL_call(term_t, module_t);
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extern X_API void PL_register_foreign_in_module(const char *, const char *, int, foreign_t (*)(void), int);
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extern X_API void PL_register_extensions(PL_extension *);
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extern X_API void PL_load_extensions(PL_extension *);
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extern X_API int PL_handle_signals(void);
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extern X_API int PL_thread_self(void);
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extern X_API int PL_thread_attach_engine(const PL_thread_attr_t *);
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extern X_API int PL_thread_destroy_engine(void);
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extern X_API int PL_thread_at_exit(void (*)(void *), void *, int);
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extern X_API PL_engine_t PL_create_engine(const PL_thread_attr_t *);
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extern X_API int PL_destroy_engine(PL_engine_t);
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extern X_API int PL_set_engine(PL_engine_t,PL_engine_t *);
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extern X_API int PL_get_string_chars(term_t, char **, int *);
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extern X_API record_t PL_record(term_t);
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extern X_API void PL_recorded(record_t, term_t);
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extern X_API void PL_erase(record_t);
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extern X_API int PL_action(int,...);
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extern X_API void *PL_malloc(int);
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extern X_API void PL_free(void *);
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extern X_API int PL_eval_expression_to_int_64_ex(term_t t, int64_t *val);
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#define PL_register_foreign(name, arity, function, flags) PL_register_foreign_in_module(NULL, (name), (arity), (function), (flags))
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extern X_API int Sprintf(const char * fm,...);
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extern X_API int Sdprintf(const char *,...);
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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Output representation for PL_get_chars() and friends. The
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prepresentation type REP_FN is for PL_get_file_name() and friends. On
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Windows we use UTF-8 which is translated by the `XOS' layer to Windows
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UNICODE file functions.
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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#define REP_ISO_LATIN_1 0x0000 /* output representation */
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#define REP_UTF8 0x1000
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#define REP_MB 0x2000
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#ifdef __WINDOWS__
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#define REP_FN REP_UTF8
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#else
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#define REP_FN REP_MB
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#endif
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#define PL_DIFF_LIST 0x20000 /* PL_unify_chars() */
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#ifdef SIO_MAGIC /* defined from <SWI-Stream.h> */
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/* Make IOSTREAM known to Prolog */
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PL_EXPORT(int) PL_open_stream(term_t t, IOSTREAM *s);
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PL_EXPORT(int) PL_unify_stream(term_t t, IOSTREAM *s);
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PL_EXPORT(int) PL_get_stream_handle(term_t t, IOSTREAM **s);
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PL_EXPORT(int) PL_release_stream(IOSTREAM *s);
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#endif
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#define succeed return TRUE
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#define fail return FALSE
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extern X_API const char *PL_cwd(void);
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void swi_install(void);
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X_API int PL_error(const char *pred, int arity, const char *msg, int id, ...);
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#endif /* _FLI_H_INCLUDED */
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