mirrors/ecl
1
Fork 0
mirror of https://gitlab.com/embeddable-common-lisp/ecl.git synced 2026-01-26 22:43:13 -08:00
Code Issues Projects Releases Packages Wiki Activity
ecl/src/h/object.h
Marius Gerbershagen b2f09b4809 ffi: generate abi list from available libffi abis 
This is more robust against changes in the abi support in libffi.
We also remove unused struct and enum type definitions (left over from
our own dynamic ffi implementation?).
2019-12-09 19:49:30 +01:00

1166 lines
40 KiB
C
Raw Blame History

/* -*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*- */
/* vim: set filetype=c tabstop=8 shiftwidth=4 expandtab: */
/*
object.h -- Data structure definitions.
*/
/*
Copyright (c) 1984, Taiichi Yuasa and Masami Hagiya.
Copyright (c) 1990, Giuseppe Attardi.
Copyright (c) 2001, Juan Jose Garcia Ripoll.
ECL is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
See file '../Copyright' for full details.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
Integer and boolean types (see config.h)
*/
#define TRUE 1 /* boolean true value */
#define FALSE 0 /* boolean false value */
#if !defined(__cplusplus) && !defined(bool)
typedef int bool;
#endif
typedef unsigned char byte;
/*
Implementation types.
Verify that it matches printer/write_ugly.d
*/
typedef enum {
t_start = 0,
t_list = 1,
/* The most specific numeric types come first. Assumed by
some routines, like cl_expt. See ANSI 12.1.1.2. */
t_character = 2, /* immediate character */
t_fixnum = 3, /* immediate fixnum */
t_bignum = 4,
t_ratio,
/* t_shortfloat, */
t_singlefloat,
t_doublefloat,
t_longfloat,
t_complex,
#ifdef ECL_COMPLEX_FLOAT
t_csfloat,
t_cdfloat,
t_clfloat,
t_last_number = t_clfloat,
#else
t_last_number = t_complex,
#endif
t_symbol,
t_package,
t_hashtable,
t_array,
t_vector,
#ifdef ECL_UNICODE
t_string,
#endif
t_base_string,
t_bitvector,
t_stream,
t_random,
t_readtable,
t_pathname,
t_bytecodes,
t_bclosure,
t_cfun,
t_cfunfixed,
t_cclosure,
t_instance,
t_structure = t_instance,
#ifdef ECL_THREADS
t_process,
t_lock,
t_rwlock,
t_condition_variable,
t_semaphore,
t_barrier,
t_mailbox,
#endif
t_codeblock,
t_foreign,
t_frame,
t_weak_pointer,
#ifdef ECL_SSE2
t_sse_pack,
#endif
t_end,
t_other,
t_contiguous, /* contiguous block */
FREE = 127 /* free object */
} cl_type;
/*
Definition of the type of LISP objects.
*/
typedef union cl_lispunion *cl_object;
typedef cl_object cl_return;
typedef cl_fixnum cl_narg;
typedef cl_object (*cl_objectfn)(cl_narg narg, ...);
typedef cl_object (*cl_objectfn_fixed)();
/*
OBJect NULL value.
It should not coincide with any legal object value.
*/
#define OBJNULL ((cl_object)NULL)
/*
Definition of each implementation type.
*/
#define ECL_TAG_BITS 2
#define ECL_IMMEDIATE(o) ((cl_fixnum)(o) & 3)
#define ECL_IMMEDIATE_TAG 3
#define ecl_to_bool(x) ((x)!=ECL_NIL)
#define ecl_make_bool(x) ((x)? ECL_T : ECL_NIL)
/* Immediate fixnums: */
#define ECL_FIXNUM_TAG t_fixnum
#define ECL_FIXNUMP(o) (ECL_IMMEDIATE(o) == t_fixnum)
#define ecl_make_fixnum(n) ((cl_object)(((cl_fixnum)(n) << 2) | t_fixnum))
#define ecl_fixnum_lower(a,b) ((cl_fixnum)(a) < (cl_fixnum)(b))
#define ecl_fixnum_greater(a,b) ((cl_fixnum)(a) > (cl_fixnum)(b))
#define ecl_fixnum_leq(a,b) ((cl_fixnum)(a) <= (cl_fixnum)(b))
#define ecl_fixnum_geq(a,b) ((cl_fixnum)(a) >= (cl_fixnum)(b))
#define ecl_fixnum_plusp(a) ((cl_fixnum)(a) > (cl_fixnum)ecl_make_fixnum(0))
#define ecl_fixnum_minusp(a) ((cl_fixnum)(a) < (cl_fixnum)(0))
#define ecl_fixnum(a) (((cl_fixnum)(a)) >> 2)
/* Immediate characters: */
#define ECL_CHARACTER_TAG t_character
#define ECL_CHARACTERP(o) (ECL_IMMEDIATE(o) == t_character)
#ifdef ECL_UNICODE
#define ECL_BASE_CHAR_P(obje) ((((cl_fixnum)(obje)) & 0xFFFFFC03) == ECL_CHARACTER_TAG)
#define ECL_BASE_CHAR_CODE_P(x) ((x & ~((cl_fixnum)0xFF)) == 0)
#define ECL_CODE_CHAR(c) ((cl_object)(((cl_fixnum)(c << 2)|ECL_CHARACTER_TAG)))
#define ECL_CHAR_CODE(obje) (((cl_fixnum)(obje)) >> 2)
#else
#define ECL_BASE_CHAR_P(o) ECL_CHARACTERP(o)
#define ECL_CODE_CHAR(c) ((cl_object)(((cl_fixnum)((c & 0xff) << 2)|ECL_CHARACTER_TAG)))
#define ECL_CHAR_CODE(obje) ((((cl_fixnum)(obje)) >> 2) & 0xff)
#endif
#define ECL_CHAR_CODE_RETURN 13
#define ECL_CHAR_CODE_NEWLINE 10
#define ECL_CHAR_CODE_LINEFEED 10
#define ECL_NUMBER_TYPE_P(t) (t >= t_fixnum && t <= t_last_number)
#define ECL_REAL_TYPE_P(t) (t >= t_fixnum && t < t_complex)
#define ECL_ARRAYP(x) ((ECL_IMMEDIATE(x) == 0) && (x)->d.t >= t_array && (x)->d.t <= t_bitvector)
#define ECL_VECTORP(x) ((ECL_IMMEDIATE(x) == 0) && (x)->d.t >= t_vector && (x)->d.t <= t_bitvector)
#define ECL_BIT_VECTOR_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_bitvector))
#ifdef ECL_UNICODE
#define ECL_STRINGP(x) ((ECL_IMMEDIATE(x) == 0) && \
((x)->d.t == t_base_string || (x)->d.t == t_string))
#define ECL_EXTENDED_STRING_P(x) ((ECL_IMMEDIATE(x) == 0) && (x)->d.t == t_string)
#else
#define ECL_STRINGP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_base_string))
#define ECL_EXTENDED_STRING_P(x) 0
#endif
#define ECL_BASE_STRING_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_base_string))
#define ECL_HASH_TABLE_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_hashtable))
#define ECL_BIGNUMP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_bignum))
#ifdef ECL_COMPLEX_FLOAT
#define ECL_COMPLEXP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t >= t_complex) && ((x)->d.t <= t_clfloat))
#define ECL_COMPLEX_SINGLE_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_csfloat))
#define ECL_COMPLEX_DOUBLE_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_cdfloat))
#define ECL_COMPLEX_LONG_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_clfloat))
#else
#define ECL_COMPLEXP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_complex))
#endif
#define ECL_RANDOM_STATE_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_random))
#define ECL_SINGLE_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_singlefloat))
#define ECL_DOUBLE_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_doublefloat))
#define ECL_LONG_FLOAT_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_longfloat))
#define ECL_PACKAGEP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_package))
#define ECL_PATHNAMEP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_pathname))
#define ECL_READTABLEP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_readtable))
#define ECL_FOREIGN_DATA_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_foreign))
#ifdef ECL_SSE2
#define ECL_SSE_PACK_P(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_sse_pack))
#endif
#define _ECL_HDR int8_t t, m, padding1, padding2
#define _ECL_HDR1(field) int8_t t, m, field, padding
#define _ECL_HDR2(field1,field2) int8_t t, m, field1, field2
struct ecl_singlefloat {
_ECL_HDR;
float SFVAL; /* singlefloat value */
};
#define ecl_single_float(o) ((o)->SF.SFVAL)
struct ecl_doublefloat {
_ECL_HDR;
double DFVAL; /* doublefloat value */
};
#define ecl_double_float(o) ((o)->DF.DFVAL)
struct ecl_long_float {
_ECL_HDR;
long double value;
};
#define ecl_long_float(o) ((o)->longfloat.value)
struct ecl_bignum {
_ECL_HDR;
mpz_t big_num;
};
#define ECL_BIGNUM_DIM(x) ((x)->big.big_num->_mp_alloc)
#define ECL_BIGNUM_SIZE(x) ((x)->big.big_num->_mp_size)
#define ECL_BIGNUM_LIMBS(x) ((x)->big.big_num->_mp_d)
struct ecl_ratio {
_ECL_HDR;
cl_object den; /* denominator, must be an integer */
cl_object num; /* numerator, must be an integer */
};
struct ecl_complex {
_ECL_HDR;
cl_object real; /* real part, must be a number */
cl_object imag; /* imaginary part, must be a number */
};
#ifdef ECL_COMPLEX_FLOAT
struct ecl_csfloat {
_ECL_HDR;
float _Complex value;
};
#define ecl_csfloat(o) ((o)->csfloat.value)
struct ecl_cdfloat {
_ECL_HDR;
double _Complex value;
};
#define ecl_cdfloat(o) ((o)->cdfloat.value)
struct ecl_clfloat {
_ECL_HDR;
long double _Complex value;
};
#define ecl_clfloat(o) ((o)->clfloat.value)
#endif
enum ecl_stype { /* symbol type */
ecl_stp_ordinary = 0,
ecl_stp_constant = 1,
ecl_stp_special = 2,
ecl_stp_macro = 4,
ecl_stp_special_form = 8
};
#define ECL_NIL ((cl_object)t_list)
#define ECL_NIL_SYMBOL ((cl_object)cl_symbols)
#define ECL_T ((cl_object)(cl_symbols+1))
#define ECL_UNBOUND ((cl_object)(cl_symbols+2))
#define ECL_PROTECT_TAG ((cl_object)(cl_symbols+3))
#define ECL_DUMMY_TAG ((cl_object)(cl_symbols+4))
#define ECL_RESTART_CLUSTERS ((cl_object)(cl_symbols+5))
#define ECL_HANDLER_CLUSTERS ((cl_object)(cl_symbols+6))
#define ECL_INTERRUPTS_ENABLED ((cl_object)(cl_symbols+7))
#define ECL_NO_TL_BINDING ((cl_object)(1 << ECL_TAG_BITS))
struct ecl_symbol {
_ECL_HDR2(stype, dynamic);/* symbol type, special-variable-p */
cl_object value; /* global value of the symbol */
/* Coincides with cons.car */
cl_object gfdef; /* global function definition */
/* For a macro, */
/* its expansion function */
/* is to be stored. */
/* Coincides with cons.cdr */
cl_object plist; /* property list */
/* This field coincides with cons.car */
cl_object name; /* print name */
cl_object hpack; /* home package */
/* ECL_NIL for uninterned symbols */
#ifdef ECL_THREADS
cl_index binding; /* index into the bindings array */
#endif
};
#define ECL_SYM_FUN(sym) ((sym)->symbol.gfdef)
struct ecl_package {
_ECL_HDR1(locked);
cl_object name; /* package name, a string */
cl_object nicknames; /* nicknames, list of strings */
cl_object local_nicknames; /* local nicknames, assoc list */
cl_object nicknamedby; /* nicknamed-by-list of packages */
cl_object shadowings; /* shadowing symbol list */
cl_object uses; /* use-list of packages */
cl_object usedby; /* used-by-list of packages */
cl_object internal; /* hashtable for internal symbols */
cl_object external; /* hashtable for external symbols */
};
/*
The values returned by intern and find_symbol.
File_symbol may return 0.
*/
enum {
ECL_INTERNAL = 1,
ECL_EXTERNAL,
ECL_INHERITED
};
/*
* CONSES
*
* We implement two variants. The "small cons" type carries the type
* information in the least significant bits of the pointer. We have
* to do some pointer arithmetics to find out the CAR / CDR of the
* cons but the overall result is faster and memory efficient, only
* using two words per cons.
*
* The other scheme stores conses as three-words objects, the first
* word carrying the type information. This is kept for backward
* compatibility and also because the oldest garbage collector does
* not yet support the smaller datatype.
*
* To make code portable and independent of the representation, only
* access the objects using the common macros below (that is all
* except ECL_CONS_PTR or ECL_PTR_CONS).
*/
#ifdef ECL_SMALL_CONS
#define ECL_LISTP(x) (ECL_IMMEDIATE(x) == t_list)
#define ECL_CONSP(x) (LISTP(x) && !Null(x))
#define ECL_ATOM(x) (Null(x) || !LISTP(x))
#define ECL_SYMBOLP(x) (Null(x) || ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_symbol)))
#define ECL_PTR_CONS(x) (cl_object)((char*)(x) + t_list)
#define ECL_CONS_PTR(x) ((struct ecl_cons *)((char *)(x) - t_list))
#define ECL_CONS_CAR(x) (*(cl_object*)((char *)(x) - t_list))
#define ECL_CONS_CDR(x) (*(cl_object*)((char *)(x) + sizeof(cl_object) - t_list))
#define ECL_RPLACA(x,v) (ECL_CONS_CAR(x)=(v))
#define ECL_RPLACD(x,v) (ECL_CONS_CDR(x)=(v))
struct ecl_cons {
cl_object car; /* car */
cl_object cdr; /* cdr */
};
#else
#define ECL_LISTP(x) (ECL_IMMEDIATE(x)? Null(x) : ((x)->d.t == t_list))
#define ECL_CONSP(x) ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_list))
#define ECL_ATOM(x) (ECL_IMMEDIATE(x) || ((x)->d.t != t_list))
#define ECL_SYMBOLP(x) (Null(x) || ((ECL_IMMEDIATE(x) == 0) && ((x)->d.t == t_symbol)))
#define ECL_CONS_CAR(x) ((x)->cons.car)
#define ECL_CONS_CDR(x) ((x)->cons.cdr)
#define ECL_RPLACA(x,v) (ECL_CONS_CAR(x)=(v))
#define ECL_RPLACD(x,v) (ECL_CONS_CDR(x)=(v))
struct ecl_cons {
_ECL_HDR;
cl_object car; /* car */
cl_object cdr; /* cdr */
};
#endif
enum ecl_httest { /* hash table key test function */
ecl_htt_eq, /* eq */
ecl_htt_eql, /* eql */
ecl_htt_equal, /* equal */
ecl_htt_equalp, /* equalp */
ecl_htt_pack, /* symbol hash */
ecl_htt_generic /* generic user-supplied test */
};
enum ecl_htweak {
ecl_htt_not_weak = 0,
ecl_htt_weak_key,
ecl_htt_weak_value,
ecl_htt_weak_key_and_value,
ecl_htt_weak_key_or_value
};
struct ecl_hashtable_entry { /* hash table entry */
cl_object key; /* key */
cl_object value; /* value */
};
struct ecl_hashtable { /* hash table header */
_ECL_HDR2(test,weak);
struct ecl_hashtable_entry *data; /* pointer to the hash table */
cl_object sync_lock; /* synchronization lock */
cl_object generic_test; /* generic test function */
cl_object generic_hash; /* generic hashing function */
cl_index entries; /* number of entries */
cl_index size; /* hash table size */
cl_index limit; /* hash table threshold (integer value) */
cl_object rehash_size; /* rehash size */
cl_object threshold; /* rehash threshold */
double factor; /* cached value of threshold */
cl_object (*get)(cl_object, cl_object, cl_object);
cl_object (*set)(cl_object, cl_object, cl_object);
bool (*rem)(cl_object, cl_object);
/* Unsafe variants are used to store the real accessors when
the synchronized variant is bound to get/set/rem. */
cl_object (*get_unsafe)(cl_object, cl_object, cl_object);
cl_object (*set_unsafe)(cl_object, cl_object, cl_object);
bool (*rem_unsafe)(cl_object, cl_object);
};
typedef enum { /* array element type */
ecl_aet_object, /* t */
ecl_aet_sf, /* single-float */
ecl_aet_df, /* double-float */
ecl_aet_lf, /* long-float */
#ifdef ECL_COMPLEX_FLOAT
ecl_aet_csf, /* complex-single-float */
ecl_aet_cdf, /* complex-double-float */
ecl_aet_clf, /* complex-long-float */
#endif
ecl_aet_bit, /* bit */
ecl_aet_fix, /* cl_fixnum */
ecl_aet_index, /* cl_index */
/* Below here, list types accepted by streams (i.e. OPEN) */
ecl_aet_b8, /* byte8 */
ecl_aet_i8, /* integer8 */
#ifdef ecl_uint16_t
ecl_aet_b16,
ecl_aet_i16,
#endif
#ifdef ecl_uint32_t
ecl_aet_b32,
ecl_aet_i32,
#endif
#ifdef ecl_uint64_t
ecl_aet_b64,
ecl_aet_i64,
#endif
#ifdef ECL_UNICODE
ecl_aet_ch, /* character */
#endif
ecl_aet_bc, /* base-char */
ecl_aet_last_type = ecl_aet_bc
} cl_elttype;
union ecl_array_data {
cl_object *t;
ecl_base_char *bc;
#ifdef ECL_UNICODE
ecl_character *c;
#endif
uint8_t *b8;
int8_t *i8;
#ifdef ecl_uint16_t
ecl_uint16_t *b16;
ecl_int16_t *i16;
#endif
#ifdef ecl_uint32_t
ecl_uint32_t *b32;
ecl_int32_t *i32;
#endif
#ifdef ecl_uint64_t
ecl_uint64_t *b64;
ecl_int64_t *i64;
#endif
float *sf;
double *df;
long double *lf;
#ifdef ECL_COMPLEX_FLOAT
float _Complex *csf;
double _Complex *cdf;
long double _Complex *clf;
#endif
cl_fixnum *fix;
cl_index *index;
byte *bit;
};
#define ECL_FLAG_HAS_FILL_POINTER 1
#define ECL_FLAG_ADJUSTABLE 2
#define ECL_ADJUSTABLE_ARRAY_P(x) ((x)->array.flags & ECL_FLAG_ADJUSTABLE)
#define ECL_ARRAY_HAS_FILL_POINTER_P(x) ((x)->array.flags & ECL_FLAG_HAS_FILL_POINTER)
struct ecl_array { /* array header */
/* adjustable flag */
/* has-fill-pointer flag */
_ECL_HDR2(elttype,flags); /* array element type, has fill ptr, adjustable-p */
cl_object displaced; /* displaced */
cl_index dim; /* dimension */
cl_index *dims; /* table of dimensions */
union ecl_array_data self; /* pointer to the array */
byte offset; /* bitvector offset */
byte rank; /* rank of array = # of dimensions */
};
struct ecl_vector { /* vector header */
/* adjustable flag */
/* has-fill-pointer flag */
_ECL_HDR2(elttype,flags); /* array element type, has fill ptr, adjustable-p */
cl_object displaced; /* displaced */
cl_index dim; /* dimension */
cl_index fillp; /* fill pointer */
/* For simple vectors, fillp is equal to dim. */
union ecl_array_data self; /* pointer to the vector */
byte offset;
};
struct ecl_base_string { /* string header */
/* adjustable flag */
/* has-fill-pointer flag */
_ECL_HDR2(elttype,flags); /* array element type, has fill ptr, adjustable-p */
cl_object displaced; /* displaced */
cl_index dim; /* dimension */
/* string length */
cl_index fillp; /* fill pointer */
/* For simple strings, */
/* st_fillp is equal to st_dim-1. */
ecl_base_char *self; /* pointer to the string */
};
#ifdef ECL_UNICODE
struct ecl_string { /* string header */
/* adjustable flag */
/* has-fill-pointer flag */
_ECL_HDR2(elttype,flags); /* array element type, has fill ptr, adjustable-p */
cl_object displaced; /* displaced */
cl_index dim; /* dimension, string length */
cl_index fillp; /* fill pointer */
/* For simple strings, fillp is equal to dim-1. */
ecl_character *self; /* pointer to the string */
};
#endif
#define T_STRUCTURE t_instance
#define ECL_STRUCT_TYPE(x) ECL_CLASS_OF(x)
#define ECL_STRUCT_SLOTS(x) (x)->instance.slots
#define ECL_STRUCT_LENGTH(x) (x)->instance.length
#define ECL_STRUCT_SLOT(x,i) (x)->instance.slots[i]
#define ECL_STRUCT_NAME(x) ECL_CLASS_NAME(ECL_CLASS_OF(x))
enum ecl_smmode { /* stream mode */
ecl_smm_input, /* input */
ecl_smm_input_file, /* input */
ecl_smm_output, /* output */
ecl_smm_output_file, /* output */
ecl_smm_io, /* input-output */
ecl_smm_io_file, /* input-output */
ecl_smm_synonym, /* synonym */
ecl_smm_broadcast, /* broadcast */
ecl_smm_concatenated, /* concatenated */
ecl_smm_two_way, /* two way */
ecl_smm_echo, /* echo */
ecl_smm_string_input, /* string input */
ecl_smm_string_output, /* string output */
ecl_smm_probe, /* probe (only used in open_stream()) */
#if defined(ECL_WSOCK)
ecl_smm_input_wsock, /* input socket (Win32) */
ecl_smm_output_wsock, /* output socket (Win32) */
ecl_smm_io_wsock, /* input/output socket (Win32) */
#endif
#if defined(ECL_MS_WINDOWS_HOST)
ecl_smm_io_wcon, /* windows console (Win32) */
#endif
ecl_smm_sequence_input, /* sequence input */
ecl_smm_sequence_output /* sequence output */
};
struct ecl_file_ops {
cl_index (*write_byte8)(cl_object strm, unsigned char *c, cl_index n);
cl_index (*read_byte8)(cl_object strm, unsigned char *c, cl_index n);
void (*write_byte)(cl_object c, cl_object strm);
cl_object (*read_byte)(cl_object strm);
int (*read_char)(cl_object strm);
int (*write_char)(cl_object strm, int c);
void (*unread_char)(cl_object strm, int c);
int (*peek_char)(cl_object strm);
cl_index (*read_vector)(cl_object strm, cl_object data, cl_index start, cl_index end);
cl_index (*write_vector)(cl_object strm, cl_object data, cl_index start, cl_index end);
int (*listen)(cl_object strm);
void (*clear_input)(cl_object strm);
void (*clear_output)(cl_object strm);
void (*finish_output)(cl_object strm);
void (*force_output)(cl_object strm);
int (*input_p)(cl_object strm);
int (*output_p)(cl_object strm);
int (*interactive_p)(cl_object strm);
cl_object (*element_type)(cl_object strm);
cl_object (*length)(cl_object strm);
cl_object (*get_position)(cl_object strm);
cl_object (*set_position)(cl_object strm, cl_object pos);
int (*column)(cl_object strm);
cl_object (*close)(cl_object strm);
};
enum {
ECL_STREAM_BINARY = 0,
ECL_STREAM_FORMAT = 0xF,
#ifndef ECL_UNICODE
ECL_STREAM_DEFAULT_FORMAT = 1,
#else
ECL_STREAM_DEFAULT_FORMAT = 2,
ECL_STREAM_ISO_8859_1 = 1,
ECL_STREAM_LATIN_1 = 1,
ECL_STREAM_UTF_8 = 2,
ECL_STREAM_UCS_2 = 3,
ECL_STREAM_UCS_2LE = 5 + 128,
ECL_STREAM_UCS_2BE = 5,
ECL_STREAM_UCS_4 = 6,
ECL_STREAM_UCS_4LE = 7 + 128,
ECL_STREAM_UCS_4BE = 7,
ECL_STREAM_USER_FORMAT = 8,
ECL_STREAM_US_ASCII = 10,
#endif
ECL_STREAM_CR = 16,
ECL_STREAM_LF = 32,
ECL_STREAM_SIGNED_BYTES = 64,
ECL_STREAM_LITTLE_ENDIAN = 128,
ECL_STREAM_C_STREAM = 256,
ECL_STREAM_MIGHT_SEEK = 512,
ECL_STREAM_CLOSE_COMPONENTS = 1024
};
/* buffer points to an array of bytes ending at buffer_end. Decode one
character from this array and advance buffer by the number of bytes
consumed. If not enough bytes are available, return EOF and don't
advance buffer. */
typedef ecl_character (*cl_eformat_decoder)(cl_object stream, unsigned char **buffer, unsigned char *buffer_end);
/* Encode the character c and store the result in buffer. Return the
number of bytes used */
typedef int (*cl_eformat_encoder)(cl_object stream, unsigned char *buffer, ecl_character c);
#define ECL_ANSI_STREAM_P(o) \
(ECL_IMMEDIATE(o) == 0 && ((o)->d.t == t_stream))
#define ECL_ANSI_STREAM_TYPE_P(o,m) \
(ECL_IMMEDIATE(o) == 0 && ((o)->d.t == t_stream) && ((o)->stream.mode == (m)))
struct ecl_stream {
_ECL_HDR2(mode,closed); /* stream mode of enum smmode */
/* closed stream? */
struct ecl_file_ops *ops; /* dispatch table */
union {
FILE *stream; /* ANSI C streams */
cl_fixnum descriptor; /* POSIX files */
} file;
cl_object object0; /* some object */
cl_object object1; /* some object */
cl_object byte_stack; /* buffer for unread bytes */
cl_index column; /* file column */
cl_fixnum last_char; /* last character read */
cl_fixnum last_code[2]; /* actual composition of last character */
cl_fixnum int0; /* some int */
cl_fixnum int1; /* some int */
cl_index byte_size; /* size of byte in binary streams */
cl_fixnum last_op; /* 0: unknown, 1: reading, -1: writing */
char *buffer; /* buffer for FILE */
cl_object format; /* external format */
cl_eformat_encoder encoder;
cl_eformat_decoder decoder;
cl_object format_table;
int flags; /* character table, flags, etc */
ecl_character eof_char;
};
struct ecl_random {
_ECL_HDR;
cl_object value; /* random state value */
};
enum ecl_chattrib { /* character attribute */
cat_whitespace, /* whitespace */
cat_terminating, /* terminating macro */
cat_non_terminating, /* non-terminating macro */
cat_single_escape, /* single-escape */
cat_multiple_escape, /* multiple-escape */
cat_constituent /* constituent */
};
struct ecl_readtable_entry { /* read table entry */
enum ecl_chattrib syntax_type; /* character attribute */
cl_object dispatch; /* a macro, a hash or NIL */
};
enum ecl_readtable_case {
ecl_case_upcase,
ecl_case_downcase,
ecl_case_invert,
ecl_case_preserve
};
struct ecl_readtable { /* read table */
_ECL_HDR1(locked);
enum ecl_readtable_case read_case; /* readtable-case */
struct ecl_readtable_entry *table; /* read table itself */
#ifdef ECL_UNICODE
cl_object hash; /* hash for values outside base-char range */
#endif
};
struct ecl_pathname {
_ECL_HDR1(logical); /* logical pathname? */
cl_object host; /* host */
cl_object device; /* device */
cl_object directory; /* directory */
cl_object name; /* name */
cl_object type; /* type */
cl_object version; /* version */
};
struct ecl_codeblock {
_ECL_HDR2(self_destruct,locked); /* delete DLL after gc */
/* do not garbage collect this library */
void *handle; /* handle returned by dlopen */
void *entry; /* entry point */
cl_object *data; /* data vector */
int data_size;
cl_object *temp_data; /* data vector for toplevel forms */
int temp_data_size;
const cl_object *data_text; /* strings with objects to be defined */
cl_object next; /* next codeblock within same library */
cl_object name;
cl_object links; /* list of symbols with linking calls */
cl_index cfuns_size; /* number of functions defined */
const struct ecl_cfunfixed *cfuns;
cl_object source; /* common debug information for this block */
cl_object refs; /* reference counter for the library */
cl_object error; /* error message when loading */
};
struct ecl_bytecodes {
_ECL_HDR;
cl_object name; /* function name */
cl_object definition; /* function definition in list form */
cl_objectfn entry; /* entry address (must match the position of
* the equivalent field in cfun) */
cl_index code_size; /* number of bytecodes */
char *code; /* the intermediate language */
cl_object data; /* non-inmediate constants used in the code */
cl_object file; /* file where it was defined... */
cl_object file_position;/* and where it was created */
};
struct ecl_bclosure {
_ECL_HDR;
cl_object code;
cl_object lex;
cl_objectfn entry; /* entry address */
};
struct ecl_cfun { /* compiled function header */
_ECL_HDR1(narg); /* number of fixed arguments */
cl_object name; /* compiled function name */
cl_object block; /* descriptor of C code block for GC */
cl_objectfn entry; /* entry address */
#ifdef ECL_C_COMPATIBLE_VARIADIC_DISPATCH
/* Some architectures (i.e. ARM64 on iOS) use a different
* calling convention for the fixed and variadic arguments of
* a variadic function. The only portable way to allow for
* function redefinitions during runtime in these
* architectures is to set entry to a dispatch function
* calling entry_variadic with the correct calling conventions
* (see cfun.d). -- mg 2019-12-02 */
cl_objectfn entry_variadic;
#endif
cl_object file; /* file where it was defined... */
cl_object file_position;/* and where it was created */
};
struct ecl_cfunfixed { /* compiled function header */
_ECL_HDR1(narg); /* number of arguments */
cl_object name; /* compiled function name */
cl_object block; /* descriptor of C code block for GC */
cl_objectfn entry; /* entry address (must match the position of
* the equivalent field in cfun) */
cl_objectfn_fixed entry_fixed; /* entry address */
cl_object file; /* file where it was defined... */
cl_object file_position;/* and where it was created */
};
struct ecl_cclosure { /* compiled closure header */
_ECL_HDR1(narg); /* number of fixed arguments */
cl_object env; /* environment */
cl_object block; /* descriptor of C code block for GC */
cl_objectfn entry; /* entry address (must match the position of
* the equivalent field in cfun) */
#ifdef ECL_C_COMPATIBLE_VARIADIC_DISPATCH
cl_objectfn entry_variadic; /* see struct ecl_cfun above */
#endif
cl_object file; /* file where it was defined... */
cl_object file_position;/* and where it was created */
};
#define ECL_FFICALL_LIMIT 256
enum ecl_ffi_tag {
ECL_FFI_CHAR = 0,
ECL_FFI_UNSIGNED_CHAR,
ECL_FFI_BYTE,
ECL_FFI_UNSIGNED_BYTE,
ECL_FFI_SHORT,
ECL_FFI_UNSIGNED_SHORT,
ECL_FFI_INT,
ECL_FFI_UNSIGNED_INT,
ECL_FFI_LONG,
ECL_FFI_UNSIGNED_LONG,
#ifdef ecl_uint8_t
ECL_FFI_INT8_T,
ECL_FFI_UINT8_T,
#endif
#ifdef ecl_uint16_t
ECL_FFI_INT16_T,
ECL_FFI_UINT16_T,
#endif
#ifdef ecl_uint32_t
ECL_FFI_INT32_T,
ECL_FFI_UINT32_T,
#endif
#ifdef ecl_uint64_t
ECL_FFI_INT64_T,
ECL_FFI_UINT64_T,
#endif
#ifdef ecl_long_long_t
ECL_FFI_LONG_LONG,
ECL_FFI_UNSIGNED_LONG_LONG,
#endif
ECL_FFI_POINTER_VOID,
ECL_FFI_CSTRING,
ECL_FFI_OBJECT,
ECL_FFI_FLOAT,
ECL_FFI_DOUBLE,
ECL_FFI_LONG_DOUBLE,
#ifdef ECL_COMPLEX_FLOAT
ECL_FFI_CSFLOAT,
ECL_FFI_CDFLOAT,
ECL_FFI_CLFLOAT,
#endif
ECL_FFI_VOID
};
union ecl_ffi_values {
char c;
unsigned char uc;
int8_t b;
uint8_t ub;
int i;
unsigned int ui;
short s;
unsigned short us;
long l;
unsigned long ul;
#ifdef ecl_uint8_t
ecl_int8_t i8;
ecl_uint8_t u8;
#endif
#ifdef ecl_uint16_t
ecl_int16_t i16;
ecl_uint16_t u16;
#endif
#ifdef ecl_uint32_t
ecl_int32_t i32;
ecl_uint32_t u32;
#endif
#ifdef ecl_uint64_t
ecl_int64_t i64;
ecl_uint64_t u64;
#endif
#ifdef ecl_long_long_t
ecl_long_long_t ll;
ecl_ulong_long_t ull;
unsigned long l2[2];
#endif
void *pv;
char *pc;
cl_object o;
float f;
double d;
long double lf;
#ifdef ECL_COMPLEX_FLOAT
float _Complex csf;
double _Complex cdf;
long double _Complex clf;
#endif
};
struct ecl_foreign { /* user defined datatype */
_ECL_HDR;
cl_object tag; /* a tag identifying the type */
cl_index size; /* the amount of memory allocated */
char *data; /* the data itself */
};
struct ecl_stack_frame {
_ECL_HDR;
cl_object *stack; /* Is this relative to the lisp stack? */
cl_object *base; /* Start of frame */
cl_index size; /* Number of arguments */
struct cl_env_struct *env;
};
struct ecl_weak_pointer { /* weak pointer to value */
_ECL_HDR;
cl_object value;
};
/*
dummy type
*/
struct ecl_dummy {
_ECL_HDR;
};
#ifdef ECL_THREADS
enum {
ECL_PROCESS_INACTIVE = 0,
ECL_PROCESS_BOOTING,
ECL_PROCESS_ACTIVE,
ECL_PROCESS_EXITING
};
struct ecl_process {
_ECL_HDR;
cl_object name;
cl_object function;
cl_object args;
struct cl_env_struct *env;
cl_object interrupt;
cl_object initial_bindings;
cl_object parent;
cl_object exit_barrier;
cl_object exit_values;
cl_object woken_up;
cl_object queue_record;
cl_object start_stop_spinlock;
cl_index phase;
#ifdef ECL_WINDOWS_THREADS
HANDLE thread;
#else
pthread_t thread;
#endif
int trap_fpe_bits;
};
enum {
ECL_WAKEUP_ONE = 0,
ECL_WAKEUP_ALL = 1,
ECL_WAKEUP_RESET_FLAG = 2,
ECL_WAKEUP_KILL = 4,
ECL_WAKEUP_DELETE = 8
};
struct ecl_queue {
_ECL_HDR;
cl_object list;
cl_object spinlock;
};
struct ecl_semaphore {
_ECL_HDR;
cl_object queue_list;
cl_object queue_spinlock;
cl_object name;
cl_fixnum counter;
};
struct ecl_barrier {
_ECL_HDR;
cl_object queue_list;
cl_object queue_spinlock;
cl_object name;
cl_fixnum count;
cl_fixnum arrivers_count;
};
struct ecl_lock {
_ECL_HDR1(recursive);
cl_object queue_list;
cl_object queue_spinlock;
cl_object owner; /* thread holding the lock or NIL */
cl_object name;
cl_fixnum counter;
};
struct ecl_mailbox {
_ECL_HDR;
cl_object name;
cl_object data;
cl_object reader_semaphore;
cl_object writer_semaphore;
cl_index read_pointer;
cl_index write_pointer;
cl_index mask;
};
struct ecl_rwlock {
_ECL_HDR;
cl_object name;
#ifdef ECL_RWLOCK
pthread_rwlock_t mutex;
#else
cl_object mutex;
#endif
};
struct ecl_condition_variable {
_ECL_HDR;
cl_object queue_list;
cl_object queue_spinlock;
cl_object lock;
};
#endif /* ECL_THREADS */
#define ECL_CLASS_OF(x) (x)->instance.clas
#define ECL_SPEC_FLAG(x) (x)->instance.slots[0]
#define ECL_SPEC_OBJECT(x) (x)->instance.slots[3]
#define ECL_CLASS_NAME(x) (x)->instance.slots[3+0]
#define ECL_CLASS_SUPERIORS(x) (x)->instance.slots[3+1]
#define ECL_CLASS_INFERIORS(x) (x)->instance.slots[3+2]
#define ECL_CLASS_SLOTS(x) (x)->instance.slots[3+3]
#define ECL_CLASS_CPL(x) (x)->instance.slots[3+4]
#define ECL_INSTANCEP(x) ((ECL_IMMEDIATE(x)==0) && ((x)->d.t==t_instance))
#define ECL_NOT_FUNCALLABLE 0
#define ECL_STANDARD_DISPATCH 1
#define ECL_RESTRICTED_DISPATCH 2
#define ECL_READER_DISPATCH 3
#define ECL_WRITER_DISPATCH 4
#define ECL_USER_DISPATCH 5
struct ecl_instance { /* instance header */
_ECL_HDR1(isgf);
cl_index length; /* instance length */
cl_object clas; /* instance class */
cl_objectfn entry; /* entry address */
cl_object sig; /* generation signature */
cl_object *slots; /* instance slots */
};
#ifdef ECL_SSE2
union ecl_sse_data {
/* This member must be first in order for
ecl_def_ct_sse_pack to work properly. */
uint8_t b8[16];
int8_t i8[16];
__m128 vf;
__m128i vi;
__m128d vd;
#ifdef ecl_uint16_t
ecl_uint16_t b16[8];
ecl_int16_t i16[8];
#endif
#ifdef ecl_uint32_t
ecl_uint32_t b32[4];
ecl_int32_t i32[4];
#endif
#ifdef ecl_uint64_t
ecl_uint64_t b64[2];
ecl_int64_t i64[2];
#endif
float sf[4];
double df[2];
};
struct ecl_sse_pack {
_ECL_HDR1(elttype);
union ecl_sse_data data;
};
#endif
/*
Definition of lispunion.
*/
union cl_lispunion {
#ifndef ECL_SMALL_CONS
struct ecl_cons cons; /* unoptimized cons */
#endif
struct ecl_bignum big; /* bignum */
struct ecl_ratio ratio; /* ratio */
struct ecl_singlefloat SF; /* single floating-point number */
struct ecl_doublefloat DF; /* double floating-point number */
struct ecl_long_float longfloat; /* long-float */
struct ecl_complex gencomplex; /* generic complex number */
#ifdef ECL_COMPLEX_FLOAT
struct ecl_csfloat csfloat; /* complex single float */
struct ecl_cdfloat cdfloat; /* complex double float */
struct ecl_clfloat clfloat; /* complex long float */
#endif
struct ecl_symbol symbol; /* symbol */
struct ecl_package pack; /* package */
struct ecl_hashtable hash; /* hash table */
struct ecl_array array; /* array */
struct ecl_vector vector; /* vector */
struct ecl_base_string base_string; /* base-string */
#ifdef ECL_UNICODE
struct ecl_string string; /* string */
#endif
struct ecl_stream stream; /* stream */
struct ecl_random random; /* random-states */
struct ecl_readtable readtable; /* read table */
struct ecl_pathname pathname; /* path name */
struct ecl_bytecodes bytecodes; /* bytecompiled function / code */
struct ecl_bclosure bclosure; /* bytecompiled closure */
struct ecl_cfun cfun; /* compiled function */
struct ecl_cfunfixed cfunfixed; /* compiled function */
struct ecl_cclosure cclosure; /* compiled closure */
struct ecl_dummy d; /* dummy */
struct ecl_instance instance; /* clos instance */
#ifdef ECL_THREADS
struct ecl_process process; /* process */
struct ecl_queue queue; /* lock */
struct ecl_lock lock; /* lock */
struct ecl_rwlock rwlock; /* read/write lock */
struct ecl_condition_variable condition_variable; /* condition-variable */
struct ecl_semaphore semaphore; /* semaphore */
struct ecl_barrier barrier; /* barrier */
struct ecl_mailbox mailbox; /* mailbox */
#endif
struct ecl_codeblock cblock; /* codeblock */
struct ecl_foreign foreign; /* user defined data type */
struct ecl_stack_frame frame; /* stack frame */
struct ecl_weak_pointer weak; /* weak pointers */
#ifdef ECL_SSE2
struct ecl_sse_pack sse;
#endif
};
/*
Type_of.
*/
#if defined(__cplusplus) || (defined(__GNUC__) && !defined(__STRICT_ANSI__))
static inline cl_type ecl_t_of(cl_object o) {
int i = ECL_IMMEDIATE(o);
return (i? (cl_type)i : (cl_type)(o->d.t));
}
#else
#define ecl_t_of(o) \
((cl_type)(ECL_IMMEDIATE(o) ? ECL_IMMEDIATE(o) : ((o)->d.t)))
#endif
/*
This is used to retrieve optional arguments
*/
typedef struct {
va_list args;
cl_object *sp;
int narg;
} ecl_va_list[1];
#ifdef __cplusplus
}
#endif
Reference in a new issue View git blame Copy permalink