#ifndef EMACS_LISP_H
#define EMACS_LISP_H
+#include <stdalign.h>
#include <stdarg.h>
#include <stddef.h>
#include <inttypes.h>
#include <intprops.h>
-/* Use the configure flag --enable-checking[=LIST] to enable various
- types of run time checks for Lisp objects. */
-
-#ifdef GC_CHECK_CONS_LIST
-extern void check_cons_list (void);
-#define CHECK_CONS_LIST() check_cons_list ()
-#else
-#define CHECK_CONS_LIST() ((void) 0)
+INLINE_HEADER_BEGIN
+#ifndef LISP_INLINE
+# define LISP_INLINE INLINE
#endif
-/* Temporarily disable wider-than-pointer integers until they're tested more.
- Build with CFLAGS='-DWIDE_EMACS_INT' to try them out. */
-/* #undef WIDE_EMACS_INT */
+/* The ubiquitous max and min macros. */
+#undef min
+#undef max
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#define min(a, b) ((a) < (b) ? (a) : (b))
/* EMACS_INT - signed integer wide enough to hold an Emacs value
EMACS_INT_MAX - maximum value of EMACS_INT; can be used in #if
pI - printf length modifier for EMACS_INT
EMACS_UINT - unsigned variant of EMACS_INT */
-#ifndef EMACS_INT
+#ifndef EMACS_INT_MAX
# if LONG_MAX < LLONG_MAX && defined WIDE_EMACS_INT
-# define EMACS_INT long long
+typedef long long int EMACS_INT;
+typedef unsigned long long int EMACS_UINT;
# define EMACS_INT_MAX LLONG_MAX
# define pI "ll"
# elif INT_MAX < LONG_MAX
-# define EMACS_INT long
+typedef long int EMACS_INT;
+typedef unsigned long int EMACS_UINT;
# define EMACS_INT_MAX LONG_MAX
# define pI "l"
# else
-# define EMACS_INT int
+typedef int EMACS_INT;
+typedef unsigned int EMACS_UINT;
# define EMACS_INT_MAX INT_MAX
# define pI ""
# endif
#endif
-#define EMACS_UINT unsigned EMACS_INT
/* Number of bits in some machine integer types. */
enum
on the few static Lisp_Objects used: all the defsubr as well
as the two special buffers buffer_defaults and buffer_local_symbols. */
-/* First, try and define DECL_ALIGN(type,var) which declares a static
- variable VAR of type TYPE with the added requirement that it be
- TYPEBITS-aligned. */
-
+enum Lisp_Bits
+ {
+ /* Number of bits in a Lisp_Object tag. This can be used in #if,
+ and for GDB's sake also as a regular symbol. */
+ GCTYPEBITS =
#define GCTYPEBITS 3
-#define VALBITS (BITS_PER_EMACS_INT - GCTYPEBITS)
+ GCTYPEBITS,
+
+ /* 2**GCTYPEBITS. This must also be a macro that expands to a
+ literal integer constant, for MSVC. */
+ GCALIGNMENT =
+#define GCALIGNMENT 8
+ GCALIGNMENT,
+
+ /* Number of bits in a Lisp_Object value, not counting the tag. */
+ VALBITS = BITS_PER_EMACS_INT - GCTYPEBITS,
+
+ /* Number of bits in a Lisp fixnum tag. */
+ INTTYPEBITS = GCTYPEBITS - 1,
+
+ /* Number of bits in a Lisp fixnum value, not counting the tag. */
+ FIXNUM_BITS = VALBITS + 1
+ };
+
+#if GCALIGNMENT != 1 << GCTYPEBITS
+# error "GCALIGNMENT and GCTYPEBITS are inconsistent"
+#endif
/* The maximum value that can be stored in a EMACS_INT, assuming all
bits other than the type bits contribute to a nonnegative signed value.
This can be used in #if, e.g., '#if VAL_MAX < UINTPTR_MAX' below. */
#define VAL_MAX (EMACS_INT_MAX >> (GCTYPEBITS - 1))
-#ifndef NO_DECL_ALIGN
-# ifndef DECL_ALIGN
-# if HAVE_ATTRIBUTE_ALIGNED
-# define DECL_ALIGN(type, var) \
- type __attribute__ ((__aligned__ (1 << GCTYPEBITS))) var
-# elif defined(_MSC_VER)
-# define ALIGN_GCTYPEBITS 8
-# if (1 << GCTYPEBITS) != ALIGN_GCTYPEBITS
-# error ALIGN_GCTYPEBITS is wrong!
-# endif
-# define DECL_ALIGN(type, var) \
- type __declspec(align(ALIGN_GCTYPEBITS)) var
-# else
- /* What directives do other compilers use? */
-# endif
-# endif
-#endif
-
/* Unless otherwise specified, use USE_LSB_TAG on systems where: */
#ifndef USE_LSB_TAG
/* 1. We know malloc returns a multiple of 8. */
# if (defined GNU_MALLOC || defined DOUG_LEA_MALLOC || defined __GLIBC__ \
|| defined DARWIN_OS || defined __sun)
/* 2. We can specify multiple-of-8 alignment on static variables. */
-# ifdef DECL_ALIGN
+# ifdef alignas
/* 3. Pointers-as-ints exceed VAL_MAX.
On hosts where pointers-as-ints do not exceed VAL_MAX, USE_LSB_TAG is:
a. unnecessary, because the top bits of an EMACS_INT are unused, and
# endif
# endif
#endif
-#ifndef USE_LSB_TAG
+#ifdef USE_LSB_TAG
+# undef USE_LSB_TAG
+enum enum_USE_LSB_TAG { USE_LSB_TAG = 1 };
+# define USE_LSB_TAG 1
+#else
+enum enum_USE_LSB_TAG { USE_LSB_TAG = 0 };
# define USE_LSB_TAG 0
#endif
-/* If we cannot use 8-byte alignment, make DECL_ALIGN a no-op. */
-#ifndef DECL_ALIGN
+#ifndef alignas
+# define alignas(alignment) /* empty */
# if USE_LSB_TAG
-# error "USE_LSB_TAG used without defining DECL_ALIGN"
+# error "USE_LSB_TAG requires alignas"
# endif
-# define DECL_ALIGN(type, var) type var
#endif
/* Lisp integers use 2 tags, to give them one extra bit, thus
extending their range from, e.g., -2^28..2^28-1 to -2^29..2^29-1. */
-#define INTTYPEBITS (GCTYPEBITS - 1)
-#define FIXNUM_BITS (VALBITS + 1)
-#define INTMASK (EMACS_INT_MAX >> (INTTYPEBITS - 1))
-#define LISP_INT_TAG Lisp_Int0
+static EMACS_INT const INTMASK = EMACS_INT_MAX >> (INTTYPEBITS - 1);
#define case_Lisp_Int case Lisp_Int0: case Lisp_Int1
-#define LISP_INT1_TAG (USE_LSB_TAG ? 1 << INTTYPEBITS : 1)
-#define LISP_STRING_TAG (5 - LISP_INT1_TAG)
-#define LISP_INT_TAG_P(x) (((x) & ~LISP_INT1_TAG) == 0)
+#define LISP_INT_TAG_P(x) (((x) & ~Lisp_Int1) == 0)
/* Stolen from GDB. The only known compiler that doesn't support
enums in bitfields is MSVC. */
{
/* Integer. XINT (obj) is the integer value. */
Lisp_Int0 = 0,
- Lisp_Int1 = LISP_INT1_TAG,
+ Lisp_Int1 = USE_LSB_TAG ? 1 << INTTYPEBITS : 1,
/* Symbol. XSYMBOL (object) points to a struct Lisp_Symbol. */
Lisp_Symbol = 2,
/* String. XSTRING (object) points to a struct Lisp_String.
The length of the string, and its contents, are stored therein. */
- Lisp_String = LISP_STRING_TAG,
+ Lisp_String = USE_LSB_TAG ? 1 : 1 << INTTYPEBITS,
/* Vector of Lisp objects, or something resembling it.
XVECTOR (object) points to a struct Lisp_Vector, which contains
typedef struct { EMACS_INT i; } Lisp_Object;
#define XLI(o) (o).i
-static inline Lisp_Object
+LISP_INLINE Lisp_Object
XIL (EMACS_INT i)
{
Lisp_Object o = { i };
return o;
}
-static inline Lisp_Object
+LISP_INLINE Lisp_Object
LISP_MAKE_RVALUE (Lisp_Object o)
{
return o;
#define LISP_INITIALLY_ZERO {0}
+#undef CHECK_LISP_OBJECT_TYPE
+enum CHECK_LISP_OBJECT_TYPE { CHECK_LISP_OBJECT_TYPE = 1 };
#else /* CHECK_LISP_OBJECT_TYPE */
/* If a struct type is not wanted, define Lisp_Object as just a number. */
#define XIL(i) (i)
#define LISP_MAKE_RVALUE(o) (0+(o))
#define LISP_INITIALLY_ZERO 0
+enum CHECK_LISP_OBJECT_TYPE { CHECK_LISP_OBJECT_TYPE = 0 };
#endif /* CHECK_LISP_OBJECT_TYPE */
/* In the size word of a vector, this bit means the vector has been marked. */
+static ptrdiff_t const ARRAY_MARK_FLAG
#define ARRAY_MARK_FLAG PTRDIFF_MIN
+ = ARRAY_MARK_FLAG;
/* In the size word of a struct Lisp_Vector, this bit means it's really
some other vector-like object. */
+static ptrdiff_t const PSEUDOVECTOR_FLAG
#define PSEUDOVECTOR_FLAG (PTRDIFF_MAX - PTRDIFF_MAX / 2)
+ = PSEUDOVECTOR_FLAG;
/* In a pseudovector, the size field actually contains a word with one
PSEUDOVECTOR_FLAG bit set, and exactly one of the following bits to
PVEC_FONT = 0x40
};
-/* For convenience, we also store the number of elements in these bits.
- Note that this size is not necessarily the memory-footprint size, but
- only the number of Lisp_Object fields (that need to be traced by the GC).
- The distinction is used e.g. by Lisp_Process which places extra
- non-Lisp_Object fields at the end of the structure. */
-#define PSEUDOVECTOR_SIZE_BITS 16
-#define PSEUDOVECTOR_SIZE_MASK ((1 << PSEUDOVECTOR_SIZE_BITS) - 1)
-#define PVEC_TYPE_MASK (0x0fff << PSEUDOVECTOR_SIZE_BITS)
-
-/* Number of bits to put in each character in the internal representation
- of bool vectors. This should not vary across implementations. */
-#define BOOL_VECTOR_BITS_PER_CHAR 8
+/* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
+ which were stored in a Lisp_Object. */
+#ifndef DATA_SEG_BITS
+# define DATA_SEG_BITS 0
+#endif
+enum { gdb_DATA_SEG_BITS = DATA_SEG_BITS };
+#undef DATA_SEG_BITS
+
+enum More_Lisp_Bits
+ {
+ DATA_SEG_BITS = gdb_DATA_SEG_BITS,
+
+ /* For convenience, we also store the number of elements in these bits.
+ Note that this size is not necessarily the memory-footprint size, but
+ only the number of Lisp_Object fields (that need to be traced by GC).
+ The distinction is used, e.g., by Lisp_Process, which places extra
+ non-Lisp_Object fields at the end of the structure. */
+ PSEUDOVECTOR_SIZE_BITS = 16,
+ PSEUDOVECTOR_SIZE_MASK = (1 << PSEUDOVECTOR_SIZE_BITS) - 1,
+ PVEC_TYPE_MASK = 0x0fff << PSEUDOVECTOR_SIZE_BITS,
+
+ /* Number of bits to put in each character in the internal representation
+ of bool vectors. This should not vary across implementations. */
+ BOOL_VECTOR_BITS_PER_CHAR = 8
+ };
\f
/* These macros extract various sorts of values from a Lisp_Object.
For example, if tem is a Lisp_Object whose type is Lisp_Cons,
#if USE_LSB_TAG
-#define TYPEMASK ((1 << GCTYPEBITS) - 1)
+enum lsb_bits
+ {
+ TYPEMASK = (1 << GCTYPEBITS) - 1,
+ VALMASK = ~ TYPEMASK
+ };
#define XTYPE(a) ((enum Lisp_Type) (XLI (a) & TYPEMASK))
#define XINT(a) (XLI (a) >> INTTYPEBITS)
#define XUINT(a) ((EMACS_UINT) XLI (a) >> INTTYPEBITS)
#else /* not USE_LSB_TAG */
+static EMACS_INT const VALMASK
#define VALMASK VAL_MAX
+ = VALMASK;
#define XTYPE(a) ((enum Lisp_Type) ((EMACS_UINT) XLI (a) >> VALBITS))
((var) = XIL ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \
+ ((intptr_t) (ptr) & VALMASK)))
-#ifdef DATA_SEG_BITS
+#if DATA_SEG_BITS
/* DATA_SEG_BITS forces extra bits to be or'd in with any pointers
which were stored in a Lisp_Object */
#define XPNTR(a) ((uintptr_t) ((XLI (a) & VALMASK)) | DATA_SEG_BITS))
#define EQ(x, y) (XHASH (x) == XHASH (y))
/* Largest and smallest representable fixnum values. These are the C
- values. */
+ values. They are macros for use in static initializers, and
+ constants for visibility to GDB. */
+static EMACS_INT const MOST_POSITIVE_FIXNUM =
#define MOST_POSITIVE_FIXNUM (EMACS_INT_MAX >> INTTYPEBITS)
+ MOST_POSITIVE_FIXNUM;
+static EMACS_INT const MOST_NEGATIVE_FIXNUM =
#define MOST_NEGATIVE_FIXNUM (-1 - MOST_POSITIVE_FIXNUM)
+ MOST_NEGATIVE_FIXNUM;
/* Value is non-zero if I doesn't fit into a Lisp fixnum. It is
written this way so that it also works if I is of unsigned
#define FIXNUM_OVERFLOW_P(i) \
(! ((0 <= (i) || MOST_NEGATIVE_FIXNUM <= (i)) && (i) <= MOST_POSITIVE_FIXNUM))
-static inline ptrdiff_t
+LISP_INLINE ptrdiff_t
clip_to_bounds (ptrdiff_t lower, EMACS_INT num, ptrdiff_t upper)
{
return num < lower ? lower : num <= upper ? num : upper;
#define ASET(ARRAY, IDX, VAL) \
(eassert ((IDX) == (IDX)), \
eassert ((IDX) >= 0 && (IDX) < ASIZE (ARRAY)), \
- AREF ((ARRAY), (IDX)) = (VAL))
+ XVECTOR (ARRAY)->contents[IDX] = (VAL))
/* Convenience macros for dealing with Lisp strings. */
#define CHECK_TYPE(ok, Qxxxp, x) \
do { if (!(ok)) wrong_type_argument (Qxxxp, (x)); } while (0)
+/* Deprecated and will be removed soon. */
+
+#define INTERNAL_FIELD(field) field ## _
-\f
/* See the macros in intervals.h. */
typedef struct interval *INTERVAL;
#define CHECK_STRING_OR_BUFFER(x) \
CHECK_TYPE (STRINGP (x) || BUFFERP (x), Qbuffer_or_string_p, x)
-\f
-/* In a cons, the markbit of the car is the gc mark bit */
-
struct Lisp_Cons
{
- /* Please do not use the names of these elements in code other
- than the core lisp implementation. Use XCAR and XCDR below. */
-#ifdef HIDE_LISP_IMPLEMENTATION
- Lisp_Object car_;
- union
- {
- Lisp_Object cdr_;
- struct Lisp_Cons *chain;
- } u;
-#else
+ /* Car of this cons cell. */
Lisp_Object car;
+
union
{
+ /* Cdr of this cons cell. */
Lisp_Object cdr;
+
+ /* Used to chain conses on a free list. */
struct Lisp_Cons *chain;
} u;
-#endif
};
/* Take the car or cdr of something known to be a cons cell. */
fields are not accessible as lvalues. (What if we want to switch to
a copying collector someday? Cached cons cell field addresses may be
invalidated at arbitrary points.) */
-#ifdef HIDE_LISP_IMPLEMENTATION
-#define XCAR_AS_LVALUE(c) (XCONS ((c))->car_)
-#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr_)
-#else
-#define XCAR_AS_LVALUE(c) (XCONS ((c))->car)
-#define XCDR_AS_LVALUE(c) (XCONS ((c))->u.cdr)
-#endif
+#define XCAR_AS_LVALUE(c) (XCONS (c)->car)
+#define XCDR_AS_LVALUE(c) (XCONS (c)->u.cdr)
/* Use these from normal code. */
#define XCAR(c) LISP_MAKE_RVALUE (XCAR_AS_LVALUE (c))
Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
may be a bit smaller than STRING_BYTES_BOUND, calculating it here
would expose alloc.c internal details that we'd rather keep
- private. The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
- signed. */
+ private.
+
+ This is a macro for use in static initializers, and a constant for
+ visibility to GDB. The cast to ptrdiff_t ensures that
+ the macro is signed. */
+static ptrdiff_t const STRING_BYTES_BOUND =
#define STRING_BYTES_BOUND \
- min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
+ ((ptrdiff_t) min (MOST_POSITIVE_FIXNUM, min (SIZE_MAX, PTRDIFF_MAX) - 1))
+ STRING_BYTES_BOUND;
/* Mark STR as a unibyte string. */
#define STRING_SET_UNIBYTE(STR) \
(STR) = empty_multibyte_string; \
else XSTRING (STR)->size_byte = XSTRING (STR)->size; } while (0)
-/* Get text properties. */
-#define STRING_INTERVALS(STR) (XSTRING (STR)->intervals + 0)
-
-/* Set text properties. */
-#define STRING_SET_INTERVALS(STR, INT) (XSTRING (STR)->intervals = (INT))
-
/* In a string or vector, the sign bit of the `size' is the gc mark bit. */
struct Lisp_String
} next;
};
+/* Regular vector is just a header plus array of Lisp_Objects. */
+
struct Lisp_Vector
{
struct vectorlike_header header;
Lisp_Object contents[1];
};
+/* A boolvector is a kind of vectorlike, with contents are like a string. */
+
+struct Lisp_Bool_Vector
+ {
+ /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
+ just the subtype information. */
+ struct vectorlike_header header;
+ /* This is the size in bits. */
+ EMACS_INT size;
+ /* This contains the actual bits, packed into bytes. */
+ unsigned char data[1];
+ };
+
+/* Some handy constants for calculating sizes
+ and offsets, mostly of vectorlike objects. */
+
+enum
+ {
+ header_size = offsetof (struct Lisp_Vector, contents),
+ bool_header_size = offsetof (struct Lisp_Bool_Vector, data),
+ word_size = sizeof (Lisp_Object)
+ };
+
/* If a struct is made to look like a vector, this macro returns the length
of the shortest vector that would hold that struct. */
-#define VECSIZE(type) ((sizeof (type) \
- - offsetof (struct Lisp_Vector, contents[0]) \
- + sizeof (Lisp_Object) - 1) /* Round up. */ \
- / sizeof (Lisp_Object))
+
+#define VECSIZE(type) \
+ ((sizeof (type) - header_size + word_size - 1) / word_size)
/* Like VECSIZE, but used when the pseudo-vector has non-Lisp_Object fields
at the end and we need to compute the number of Lisp_Object fields (the
ones that the GC needs to trace). */
-#define PSEUDOVECSIZE(type, nonlispfield) \
- ((offsetof (type, nonlispfield) - offsetof (struct Lisp_Vector, contents[0])) \
- / sizeof (Lisp_Object))
+
+#define PSEUDOVECSIZE(type, nonlispfield) \
+ ((offsetof (type, nonlispfield) - header_size) / word_size)
/* A char-table is a kind of vectorlike, with contents are like a
vector but with a few other slots. For some purposes, it makes
of a char-table, and there's no way to access it directly from
Emacs Lisp program. */
-/* This is the number of slots that every char table must have. This
- counts the ordinary slots and the top, defalt, parent, and purpose
- slots. */
-#define CHAR_TABLE_STANDARD_SLOTS (VECSIZE (struct Lisp_Char_Table) - 1)
-
-/* Return the number of "extra" slots in the char table CT. */
-
-#define CHAR_TABLE_EXTRA_SLOTS(CT) \
- (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
-
#ifdef __GNUC__
#define CHAR_TABLE_REF_ASCII(CT, IDX) \
? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL \
: char_table_set (CT, IDX, VAL))
-#define CHARTAB_SIZE_BITS_0 6
-#define CHARTAB_SIZE_BITS_1 4
-#define CHARTAB_SIZE_BITS_2 5
-#define CHARTAB_SIZE_BITS_3 7
+enum CHARTAB_SIZE_BITS
+ {
+ CHARTAB_SIZE_BITS_0 = 6,
+ CHARTAB_SIZE_BITS_1 = 4,
+ CHARTAB_SIZE_BITS_2 = 5,
+ CHARTAB_SIZE_BITS_3 = 7
+ };
extern const int chartab_size[4];
Lisp_Object contents[1];
};
-/* A boolvector is a kind of vectorlike, with contents are like a string. */
-struct Lisp_Bool_Vector
- {
- /* HEADER.SIZE is the vector's size field. It doesn't have the real size,
- just the subtype information. */
- struct vectorlike_header header;
- /* This is the size in bits. */
- EMACS_INT size;
- /* This contains the actual bits, packed into bytes. */
- unsigned char data[1];
- };
-
/* This structure describes a built-in function.
It is generated by the DEFUN macro only.
defsubr makes it into a Lisp object.
const char *doc;
};
+/* This is the number of slots that every char table must have. This
+ counts the ordinary slots and the top, defalt, parent, and purpose
+ slots. */
+enum CHAR_TABLE_STANDARD_SLOTS
+ {
+ CHAR_TABLE_STANDARD_SLOTS = VECSIZE (struct Lisp_Char_Table) - 1
+ };
+
+/* Return the number of "extra" slots in the char table CT. */
+
+#define CHAR_TABLE_EXTRA_SLOTS(CT) \
+ (((CT)->header.size & PSEUDOVECTOR_SIZE_MASK) - CHAR_TABLE_STANDARD_SLOTS)
+
\f
/***********************************************************************
Symbols
special (with `defvar' etc), and shouldn't be lexically bound. */
unsigned declared_special : 1;
- /* The symbol's name, as a Lisp string.
- The name "xname" is used to intentionally break code referring to
- the old field "name" of type pointer to struct Lisp_String. */
- Lisp_Object xname;
+ /* The symbol's name, as a Lisp string. */
+ Lisp_Object name;
/* Value of the symbol or Qunbound if unbound. Which alternative of the
union is used depends on the `redirect' field above. */
/* Value is name of symbol. */
-#define SYMBOL_VAL(sym) \
- (eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value)
-#define SYMBOL_ALIAS(sym) \
+#define SYMBOL_VAL(sym) \
+ (eassert ((sym)->redirect == SYMBOL_PLAINVAL), sym->val.value)
+#define SYMBOL_ALIAS(sym) \
(eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias)
-#define SYMBOL_BLV(sym) \
+#define SYMBOL_BLV(sym) \
(eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv)
-#define SYMBOL_FWD(sym) \
+#define SYMBOL_FWD(sym) \
(eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd)
-#define SET_SYMBOL_VAL(sym, v) \
+#define SET_SYMBOL_VAL(sym, v) \
(eassert ((sym)->redirect == SYMBOL_PLAINVAL), (sym)->val.value = (v))
-#define SET_SYMBOL_ALIAS(sym, v) \
+#define SET_SYMBOL_ALIAS(sym, v) \
(eassert ((sym)->redirect == SYMBOL_VARALIAS), (sym)->val.alias = (v))
-#define SET_SYMBOL_BLV(sym, v) \
+#define SET_SYMBOL_BLV(sym, v) \
(eassert ((sym)->redirect == SYMBOL_LOCALIZED), (sym)->val.blv = (v))
-#define SET_SYMBOL_FWD(sym, v) \
+#define SET_SYMBOL_FWD(sym, v) \
(eassert ((sym)->redirect == SYMBOL_FORWARDED), (sym)->val.fwd = (v))
-#define SYMBOL_NAME(sym) \
- LISP_MAKE_RVALUE (XSYMBOL (sym)->xname)
+#define SYMBOL_NAME(sym) XSYMBOL (sym)->name
/* Value is non-zero if SYM is an interned symbol. */
-#define SYMBOL_INTERNED_P(sym) \
- (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
+#define SYMBOL_INTERNED_P(sym) \
+ (XSYMBOL (sym)->interned != SYMBOL_UNINTERNED)
/* Value is non-zero if SYM is interned in initial_obarray. */
-#define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
- (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
+#define SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P(sym) \
+ (XSYMBOL (sym)->interned == SYMBOL_INTERNED_IN_INITIAL_OBARRAY)
/* Value is non-zero if symbol is considered a constant, i.e. its
value cannot be changed (there is an exception for keyword symbols,
whose value can be set to the keyword symbol itself). */
-#define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
+#define SYMBOL_CONSTANT_P(sym) XSYMBOL (sym)->constant
-#define DEFSYM(sym, name) \
+#define DEFSYM(sym, name) \
do { (sym) = intern_c_string ((name)); staticpro (&(sym)); } while (0)
\f
/* Default size for hash tables if not specified. */
-#define DEFAULT_HASH_SIZE 65
+enum DEFAULT_HASH_SIZE { DEFAULT_HASH_SIZE = 65 };
/* Default threshold specifying when to resize a hash table. The
value gives the ratio of current entries in the hash table and the
size of the hash table. */
-#define DEFAULT_REHASH_THRESHOLD 0.8
+static double const DEFAULT_REHASH_THRESHOLD = 0.8;
/* Default factor by which to increase the size of a hash table. */
-#define DEFAULT_REHASH_SIZE 1.5
+static double const DEFAULT_REHASH_SIZE = 1.5;
-\f
/* These structures are used for various misc types. */
struct Lisp_Misc_Any /* Supertype of all Misc types. */
struct Lisp_Overlay
/* An overlay's real data content is:
- plist
- - buffer
- - insertion type of both ends
- - start & start_byte
- - end & end_byte
- - next (singly linked list of overlays).
- - start_next and end_next (singly linked list of markers).
+ - buffer (really there are two buffer pointers, one per marker,
+ and both points to the same buffer)
+ - insertion type of both ends (per-marker fields)
+ - start & start byte (of start marker)
+ - end & end byte (of end marker)
+ - next (singly linked list of overlays)
+ - next fields of start and end markers (singly linked list of markers).
I.e. 9words plus 2 bits, 3words of which are for external linked lists.
*/
{
unsigned gcmarkbit : 1;
int spacer : 15;
struct Lisp_Overlay *next;
- Lisp_Object start, end, plist;
+ Lisp_Object start;
+ Lisp_Object end;
+ Lisp_Object plist;
};
/* Hold a C pointer for later use.
{
union
{
-#ifdef HIDE_LISP_IMPLEMENTATION
- double data_;
-#else
double data;
-#endif
struct Lisp_Float *chain;
} u;
};
-#ifdef HIDE_LISP_IMPLEMENTATION
-#define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data_ : XFLOAT (f)->u.data_)
-#else
-#define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
-/* This should be used only in alloc.c, which always disables
- HIDE_LISP_IMPLEMENTATION. */
-#define XFLOAT_INIT(f,n) (XFLOAT (f)->u.data = (n))
-#endif
+#define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data)
+#define XFLOAT_INIT(f, n) (XFLOAT (f)->u.data = (n))
/* A character, declared with the following typedef, is a member
of some character set associated with the current buffer. */
/* Meanings of slots in a Lisp_Compiled: */
-#define COMPILED_ARGLIST 0
-#define COMPILED_BYTECODE 1
-#define COMPILED_CONSTANTS 2
-#define COMPILED_STACK_DEPTH 3
-#define COMPILED_DOC_STRING 4
-#define COMPILED_INTERACTIVE 5
+enum Lisp_Compiled
+ {
+ COMPILED_ARGLIST = 0,
+ COMPILED_BYTECODE = 1,
+ COMPILED_CONSTANTS = 2,
+ COMPILED_STACK_DEPTH = 3,
+ COMPILED_DOC_STRING = 4,
+ COMPILED_INTERACTIVE = 5
+ };
/* Flag bits in a character. These also get used in termhooks.h.
Richard Stallman <rms@gnu.ai.mit.edu> thinks that MULE
(MUlti-Lingual Emacs) might need 22 bits for the character value
itself, so we probably shouldn't use any bits lower than 0x0400000. */
-#define CHAR_ALT (0x0400000)
-#define CHAR_SUPER (0x0800000)
-#define CHAR_HYPER (0x1000000)
-#define CHAR_SHIFT (0x2000000)
-#define CHAR_CTL (0x4000000)
-#define CHAR_META (0x8000000)
-
-#define CHAR_MODIFIER_MASK \
- (CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META)
+enum char_bits
+ {
+ CHAR_ALT = 0x0400000,
+ CHAR_SUPER = 0x0800000,
+ CHAR_HYPER = 0x1000000,
+ CHAR_SHIFT = 0x2000000,
+ CHAR_CTL = 0x4000000,
+ CHAR_META = 0x8000000,
+
+ CHAR_MODIFIER_MASK =
+ CHAR_ALT | CHAR_SUPER | CHAR_HYPER | CHAR_SHIFT | CHAR_CTL | CHAR_META,
+
+ /* Actually, the current Emacs uses 22 bits for the character value
+ itself. */
+ CHARACTERBITS = 22
+ };
-/* Actually, the current Emacs uses 22 bits for the character value
- itself. */
-#define CHARACTERBITS 22
\f
/* The glyph datatype, used to represent characters on the display.
(XINT (gc) >> CHARACTERBITS)); \
} \
while (0)
-
-/* The ID of the mode line highlighting face. */
-#define GLYPH_MODE_LINE_FACE 1
\f
/* Structure to hold mouse highlight data. This is here because other
header files need it for defining struct x_output etc. */
vchild, and hchild members are all nil. */
#define CHECK_LIVE_WINDOW(x) \
- CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), Qwindow_live_p, x)
+ CHECK_TYPE (WINDOWP (x) && !NILP (XWINDOW (x)->buffer), \
+ Qwindow_live_p, x)
#define CHECK_PROCESS(x) \
CHECK_TYPE (PROCESSP (x), Qprocessp, x)
#ifdef _MSC_VER
#define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
- static DECL_ALIGN (struct Lisp_Subr, sname) = \
+ static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
{ (PVEC_SUBR << PSEUDOVECTOR_SIZE_BITS) \
| (sizeof (struct Lisp_Subr) / sizeof (EMACS_INT)), \
{ (Lisp_Object (__cdecl *)(void))fnname }, \
#else /* not _MSC_VER */
#define DEFUN(lname, fnname, sname, minargs, maxargs, intspec, doc) \
Lisp_Object fnname DEFUN_ARGS_ ## maxargs ; \
- static DECL_ALIGN (struct Lisp_Subr, sname) = \
+ static struct Lisp_Subr alignas (GCALIGNMENT) sname = \
{ PVEC_SUBR << PSEUDOVECTOR_SIZE_BITS, \
{ .a ## maxargs = fnname }, \
minargs, maxargs, lname, intspec, 0}; \
is how we define the symbol for function `name' at start-up time. */
extern void defsubr (struct Lisp_Subr *);
-#define MANY -2
-#define UNEVALLED -1
+enum maxargs
+ {
+ MANY = -2,
+ UNEVALLED = -1
+ };
extern void defvar_lisp (struct Lisp_Objfwd *, const char *, Lisp_Object *);
extern void defvar_lisp_nopro (struct Lisp_Objfwd *, const char *, Lisp_Object *);
extern Lisp_Object Vascii_downcase_table;
extern Lisp_Object Vascii_canon_table;
\f
-/* Number of bytes of structure consed since last GC. */
-
-extern EMACS_INT consing_since_gc;
-
-extern EMACS_INT gc_relative_threshold;
-
-extern EMACS_INT memory_full_cons_threshold;
-
/* Structure for recording stack slots that need marking. */
/* This is a chain of structures, each of which points at a Lisp_Object
struct window;
struct frame;
+/* Simple access functions. */
+
+LISP_INLINE Lisp_Object *
+aref_addr (Lisp_Object array, ptrdiff_t idx)
+{
+ return & XVECTOR (array)->contents[idx];
+}
+
+LISP_INLINE void
+gc_aset (Lisp_Object array, ptrdiff_t idx, Lisp_Object val)
+{
+ /* Like ASET, but also can be used in the garbage collector:
+ sweep_weak_table calls set_hash_key etc. while the table is marked. */
+ eassert (0 <= idx && idx < (ASIZE (array) & ~ARRAY_MARK_FLAG));
+ XVECTOR (array)->contents[idx] = val;
+}
+
+LISP_INLINE void
+set_hash_key (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val)
+{
+ gc_aset (h->key_and_value, 2 * idx, val);
+}
+
+LISP_INLINE void
+set_hash_value (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val)
+{
+ gc_aset (h->key_and_value, 2 * idx + 1, val);
+}
+
+LISP_INLINE void
+set_hash_next (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val)
+{
+ gc_aset (h->next, idx, val);
+}
+
+LISP_INLINE void
+set_hash_hash (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val)
+{
+ gc_aset (h->hash, idx, val);
+}
+
+LISP_INLINE void
+set_hash_index (struct Lisp_Hash_Table *h, ptrdiff_t idx, Lisp_Object val)
+{
+ gc_aset (h->index, idx, val);
+}
+
+/* Use these functions to set Lisp_Object
+ or pointer slots of struct Lisp_Symbol. */
+
+LISP_INLINE void
+set_symbol_name (Lisp_Object sym, Lisp_Object name)
+{
+ XSYMBOL (sym)->name = name;
+}
+
+LISP_INLINE void
+set_symbol_function (Lisp_Object sym, Lisp_Object function)
+{
+ XSYMBOL (sym)->function = function;
+}
+
+LISP_INLINE void
+set_symbol_plist (Lisp_Object sym, Lisp_Object plist)
+{
+ XSYMBOL (sym)->plist = plist;
+}
+
+LISP_INLINE void
+set_symbol_next (Lisp_Object sym, struct Lisp_Symbol *next)
+{
+ XSYMBOL (sym)->next = next;
+}
+
+/* Set overlay's property list. */
+
+LISP_INLINE void
+set_overlay_plist (Lisp_Object overlay, Lisp_Object plist)
+{
+ XOVERLAY (overlay)->plist = plist;
+}
+
+/* Get text properties of S. */
+
+LISP_INLINE INTERVAL
+string_get_intervals (Lisp_Object s)
+{
+ return XSTRING (s)->intervals;
+}
+
+/* Set text properties of S to I. */
+
+LISP_INLINE void
+string_set_intervals (Lisp_Object s, INTERVAL i)
+{
+ XSTRING (s)->intervals = i;
+}
+
/* Defined in data.c. */
extern Lisp_Object Qnil, Qt, Qquote, Qlambda, Qunbound;
extern Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
extern Lisp_Object Qfloatp;
extern Lisp_Object Qnumberp, Qnumber_or_marker_p;
-extern Lisp_Object Qinteger;
+extern Lisp_Object Qinteger, Qinterval, Qsymbol, Qstring;
+extern Lisp_Object Qmisc, Qvector, Qfloat, Qcons, Qbuffer;
extern Lisp_Object Qfont_spec, Qfont_entity, Qfont_object;
+EXFUN (Fbyteorder, 0) ATTRIBUTE_CONST;
+
/* Defined in frame.c */
extern Lisp_Object Qframep;
extern void syms_of_coding (void);
/* Defined in character.c */
+EXFUN (Fmax_char, 0) ATTRIBUTE_CONST;
extern ptrdiff_t chars_in_text (const unsigned char *, ptrdiff_t);
extern ptrdiff_t multibyte_chars_in_text (const unsigned char *, ptrdiff_t);
-extern int multibyte_char_to_unibyte (int);
-extern int multibyte_char_to_unibyte_safe (int);
-extern void init_character_once (void);
+extern int multibyte_char_to_unibyte (int) ATTRIBUTE_CONST;
+extern int multibyte_char_to_unibyte_safe (int) ATTRIBUTE_CONST;
extern void syms_of_character (void);
/* Defined in charset.c */
/* Defined in fns.c */
extern Lisp_Object QCrehash_size, QCrehash_threshold;
enum { NEXT_ALMOST_PRIME_LIMIT = 11 };
-extern EMACS_INT next_almost_prime (EMACS_INT);
+EXFUN (Fidentity, 1) ATTRIBUTE_CONST;
+extern EMACS_INT next_almost_prime (EMACS_INT) ATTRIBUTE_CONST;
extern Lisp_Object larger_vector (Lisp_Object, ptrdiff_t, ptrdiff_t);
extern void sweep_weak_hash_tables (void);
extern Lisp_Object Qcursor_in_echo_area;
ptrdiff_t hash_lookup (struct Lisp_Hash_Table *, Lisp_Object, EMACS_UINT *);
ptrdiff_t hash_put (struct Lisp_Hash_Table *, Lisp_Object, Lisp_Object,
EMACS_UINT);
-void init_weak_hash_tables (void);
-extern void init_fns (void);
extern Lisp_Object substring_both (Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t);
extern Lisp_Object QCconversion;
extern int x_bitmap_mask (struct frame *, ptrdiff_t);
extern void syms_of_image (void);
-extern void init_image (void);
/* Defined in insdel.c */
extern Lisp_Object Qinhibit_modification_hooks;
extern void refill_memory_reserve (void);
#endif
extern const char *pending_malloc_warning;
+extern Lisp_Object zero_vector;
extern Lisp_Object *stack_base;
+extern EMACS_INT consing_since_gc;
+extern EMACS_INT gc_relative_threshold;
+extern EMACS_INT memory_full_cons_threshold;
extern Lisp_Object list1 (Lisp_Object);
extern Lisp_Object list2 (Lisp_Object, Lisp_Object);
extern Lisp_Object list3 (Lisp_Object, Lisp_Object, Lisp_Object);
extern Lisp_Object list4 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
extern Lisp_Object list5 (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object,
Lisp_Object);
-extern Lisp_Object allocate_misc (void);
+enum constype {CONSTYPE_HEAP, CONSTYPE_PURE};
+extern Lisp_Object listn (enum constype, ptrdiff_t, Lisp_Object, ...);
extern _Noreturn void string_overflow (void);
extern Lisp_Object make_string (const char *, ptrdiff_t);
extern Lisp_Object make_formatted_string (char *, const char *, ...)
ATTRIBUTE_FORMAT_PRINTF (2, 3);
extern Lisp_Object make_unibyte_string (const char *, ptrdiff_t);
+
+/* Make unibyte string from C string when the length isn't known. */
+
+LISP_INLINE Lisp_Object
+build_unibyte_string (const char *str)
+{
+ return make_unibyte_string (str, strlen (str));
+}
+
extern Lisp_Object make_multibyte_string (const char *, ptrdiff_t, ptrdiff_t);
extern Lisp_Object make_event_array (int, Lisp_Object *);
extern Lisp_Object make_uninit_string (EMACS_INT);
extern Lisp_Object make_specified_string (const char *,
ptrdiff_t, ptrdiff_t, int);
extern Lisp_Object make_pure_string (const char *, ptrdiff_t, ptrdiff_t, int);
-extern Lisp_Object make_pure_c_string (const char *data);
+extern Lisp_Object make_pure_c_string (const char *, ptrdiff_t);
+
+/* Make a string allocated in pure space, use STR as string data. */
+
+LISP_INLINE Lisp_Object
+build_pure_c_string (const char *str)
+{
+ return make_pure_c_string (str, strlen (str));
+}
/* Make a string from the data at STR, treating it as multibyte if the
data warrants. */
-static inline Lisp_Object
+LISP_INLINE Lisp_Object
build_string (const char *str)
{
return make_string (str, strlen (str));
extern void display_malloc_warning (void);
extern ptrdiff_t inhibit_garbage_collection (void);
extern Lisp_Object make_save_value (void *, ptrdiff_t);
+extern Lisp_Object build_overlay (Lisp_Object, Lisp_Object, Lisp_Object);
extern void free_marker (Lisp_Object);
extern void free_cons (struct Lisp_Cons *);
extern void init_alloc_once (void);
extern void syms_of_alloc (void);
extern struct buffer * allocate_buffer (void);
extern int valid_lisp_object_p (Lisp_Object);
+#ifdef GC_CHECK_CONS_LIST
+extern void check_cons_list (void);
+#else
+#define check_cons_list() ((void) 0)
+#endif
#ifdef REL_ALLOC
/* Defined in ralloc.c */
Lisp_Object);
extern Lisp_Object internal_with_output_to_temp_buffer
(const char *, Lisp_Object (*) (Lisp_Object), Lisp_Object);
-#define FLOAT_TO_STRING_BUFSIZE 350
+enum FLOAT_TO_STRING_BUFSIZE { FLOAT_TO_STRING_BUFSIZE = 350 };
extern int float_to_string (char *, double);
extern void syms_of_print (void);
extern Lisp_Object Qvariable_documentation, Qstandard_input;
extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction;
extern Lisp_Object check_obarray (Lisp_Object);
-extern Lisp_Object intern (const char *);
-extern Lisp_Object intern_c_string (const char *);
+extern Lisp_Object intern_1 (const char *, ptrdiff_t);
+extern Lisp_Object intern_c_string_1 (const char *, ptrdiff_t);
extern Lisp_Object oblookup (Lisp_Object, const char *, ptrdiff_t, ptrdiff_t);
#define LOADHIST_ATTACH(x) \
do { \
extern void init_lread (void);
extern void syms_of_lread (void);
+LISP_INLINE Lisp_Object
+intern (const char *str)
+{
+ return intern_1 (str, strlen (str));
+}
+
+LISP_INLINE Lisp_Object
+intern_c_string (const char *str)
+{
+ return intern_c_string_1 (str, strlen (str));
+}
+
/* Defined in eval.c. */
extern Lisp_Object Qautoload, Qexit, Qinteractive, Qcommandp, Qmacro;
extern Lisp_Object Qinhibit_quit, Qclosure;
extern Lisp_Object internal_condition_case (Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object));
extern Lisp_Object internal_condition_case_1 (Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object));
extern Lisp_Object internal_condition_case_2 (Lisp_Object (*) (Lisp_Object, Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object));
-extern Lisp_Object internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object));
+extern Lisp_Object internal_condition_case_n
+ (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *,
+ Lisp_Object, Lisp_Object (*) (Lisp_Object, ptrdiff_t, Lisp_Object *));
extern void specbind (Lisp_Object, Lisp_Object);
extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object), Lisp_Object);
extern Lisp_Object unbind_to (ptrdiff_t, Lisp_Object);
extern _Noreturn void error (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
extern _Noreturn void verror (const char *, va_list)
ATTRIBUTE_FORMAT_PRINTF (1, 0);
-extern void do_autoload (Lisp_Object, Lisp_Object);
extern Lisp_Object un_autoload (Lisp_Object);
extern void init_eval_once (void);
-extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object *);
+extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object, ...);
extern Lisp_Object safe_call1 (Lisp_Object, Lisp_Object);
extern Lisp_Object safe_call2 (Lisp_Object, Lisp_Object, Lisp_Object);
extern void init_eval (void);
#endif
extern void syms_of_eval (void);
-/* Defined in editfns.c */
+/* Defined in editfns.c. */
extern Lisp_Object Qfield;
extern void insert1 (Lisp_Object);
extern Lisp_Object format2 (const char *, Lisp_Object, Lisp_Object);
extern void syms_of_editfns (void);
extern void set_time_zone_rule (const char *);
-/* Defined in buffer.c */
+/* Defined in buffer.c. */
extern int mouse_face_overlay_overlaps (Lisp_Object);
extern _Noreturn void nsberror (Lisp_Object);
extern void adjust_overlays_for_insert (ptrdiff_t, ptrdiff_t);
extern Lisp_Object other_buffer_safely (Lisp_Object);
extern Lisp_Object Qpriority, Qwindow, Qbefore_string, Qafter_string;
extern Lisp_Object get_truename_buffer (Lisp_Object);
-extern struct buffer *all_buffers;
extern void init_buffer_once (void);
extern void init_buffer (void);
extern void syms_of_buffer (void);
extern void keys_of_buffer (void);
-/* Defined in marker.c */
+/* Defined in marker.c. */
extern ptrdiff_t marker_position (Lisp_Object);
extern ptrdiff_t marker_byte_position (Lisp_Object);
struct re_registers *,
Lisp_Object, int, int);
extern ptrdiff_t fast_string_match (Lisp_Object, Lisp_Object);
-extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object, const char *);
+extern ptrdiff_t fast_c_string_match_ignore_case (Lisp_Object, const char *,
+ ptrdiff_t);
extern ptrdiff_t fast_string_match_ignore_case (Lisp_Object, Lisp_Object);
extern ptrdiff_t fast_looking_at (Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t, Lisp_Object);
extern void syms_of_search (void);
extern void clear_regexp_cache (void);
-/* Defined in minibuf.c */
+/* Defined in minibuf.c. */
extern Lisp_Object Qcompletion_ignore_case;
extern Lisp_Object Vminibuffer_list;
extern void init_minibuf_once (void);
extern void syms_of_minibuf (void);
-/* Defined in callint.c */
+/* Defined in callint.c. */
extern Lisp_Object Qminus, Qplus;
extern Lisp_Object Qwhen;
extern Lisp_Object Qcall_interactively, Qmouse_leave_buffer_hook;
extern void syms_of_callint (void);
-/* Defined in casefiddle.c */
+/* Defined in casefiddle.c. */
extern Lisp_Object Qidentity;
extern void syms_of_casefiddle (void);
extern void keys_of_casefiddle (void);
-/* Defined in casetab.c */
+/* Defined in casetab.c. */
extern void init_casetab_once (void);
extern void syms_of_casetab (void);
-/* Defined in keyboard.c */
+/* Defined in keyboard.c. */
extern Lisp_Object echo_message_buffer;
extern struct kboard *echo_kboard;
extern Lisp_Object Qdisabled, QCfilter;
extern Lisp_Object Qup, Qdown, Qbottom;
extern Lisp_Object Qtop;
+extern Lisp_Object last_undo_boundary;
extern int input_pending;
extern Lisp_Object menu_bar_items (Lisp_Object);
extern Lisp_Object tool_bar_items (Lisp_Object, int *);
extern void syms_of_keyboard (void);
extern void keys_of_keyboard (void);
-/* Defined in indent.c */
+/* Defined in indent.c. */
extern ptrdiff_t current_column (void);
extern void invalidate_current_column (void);
extern int indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT);
extern void syms_of_indent (void);
-/* Defined in frame.c */
-extern Lisp_Object Qonly;
+/* Defined in frame.c. */
+extern Lisp_Object Qonly, Qnone;
extern Lisp_Object Qvisible;
extern void store_frame_param (struct frame *, Lisp_Object, Lisp_Object);
extern void store_in_alist (Lisp_Object *, Lisp_Object, Lisp_Object);
extern void frames_discard_buffer (Lisp_Object);
extern void syms_of_frame (void);
-/* Defined in emacs.c */
+/* Defined in emacs.c. */
extern char **initial_argv;
extern int initial_argc;
#if defined (HAVE_X_WINDOWS) || defined (HAVE_NS)
extern void delete_gpm_wait_descriptor (int);
#endif
extern void close_process_descs (void);
-extern void init_process (void);
+extern void init_process_emacs (void);
extern void syms_of_process (void);
extern void setup_process_coding_systems (Lisp_Object);
extern void reset_all_sys_modes (void);
extern void wait_for_termination (pid_t);
extern void interruptible_wait_for_termination (pid_t);
-extern void flush_pending_output (int);
+extern void flush_pending_output (int) ATTRIBUTE_CONST;
extern void child_setup_tty (int);
extern void setup_pty (int);
extern int set_window_size (int, int, int);
extern void unlock_file (Lisp_Object);
extern void unlock_buffer (struct buffer *);
extern void syms_of_filelock (void);
-extern void init_filelock (void);
/* Defined in sound.c */
extern void syms_of_sound (void);
-extern void init_sound (void);
/* Defined in category.c */
extern void init_category_once (void);
/* Set up the name of the machine we're running on. */
extern void init_system_name (void);
-/* Some systems (e.g., NT) use a different path separator than Unix,
- in addition to a device separator. Set the path separator
- to '/', and don't test for a device separator in IS_ANY_SEP. */
-
-#define DIRECTORY_SEP '/'
-#ifndef IS_DIRECTORY_SEP
-#define IS_DIRECTORY_SEP(_c_) ((_c_) == DIRECTORY_SEP)
-#endif
-#ifndef IS_DEVICE_SEP
-#ifndef DEVICE_SEP
-#define IS_DEVICE_SEP(_c_) 0
-#else
-#define IS_DEVICE_SEP(_c_) ((_c_) == DEVICE_SEP)
-#endif
-#endif
-#ifndef IS_ANY_SEP
-#define IS_ANY_SEP(_c_) (IS_DIRECTORY_SEP (_c_))
-#endif
-
-#define SWITCH_ENUM_CAST(x) (x)
-
-/* Use this to suppress gcc's warnings. */
-#ifdef lint
-
-/* Use CODE only if lint checking is in effect. */
-# define IF_LINT(Code) Code
-
-/* Assume that the expression COND is true. This differs in intent
- from 'assert', as it is a message from the programmer to the compiler. */
-# define lint_assume(cond) ((cond) ? (void) 0 : abort ())
-
-#else
-# define IF_LINT(Code) /* empty */
-# define lint_assume(cond) ((void) (0 && (cond)))
-#endif
-
-/* The ubiquitous min and max macros. */
-
-#ifdef max
-#undef max
-#undef min
-#endif
-#define min(a, b) ((a) < (b) ? (a) : (b))
-#define max(a, b) ((a) > (b) ? (a) : (b))
-
/* We used to use `abs', but that clashes with system headers on some
platforms, and using a name reserved by Standard C is a bad idea
anyway. */
/* SAFE_ALLOCA normally allocates memory on the stack, but if size is
larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */
-#define MAX_ALLOCA 16*1024
+enum MAX_ALLOCA { MAX_ALLOCA = 16*1024 };
extern Lisp_Object safe_alloca_unwind (Lisp_Object);
+extern void *record_xmalloc (size_t);
#define USE_SAFE_ALLOCA \
ptrdiff_t sa_count = SPECPDL_INDEX (); int sa_must_free = 0
/* SAFE_ALLOCA allocates a simple buffer. */
-#define SAFE_ALLOCA(buf, type, size) \
- do { \
- if ((size) < MAX_ALLOCA) \
- buf = (type) alloca (size); \
- else \
- { \
- buf = xmalloc (size); \
- sa_must_free = 1; \
- record_unwind_protect (safe_alloca_unwind, \
- make_save_value (buf, 0)); \
- } \
- } while (0)
+#define SAFE_ALLOCA(size) ((size) < MAX_ALLOCA \
+ ? alloca (size) \
+ : (sa_must_free = 1, record_xmalloc (size)))
/* SAFE_NALLOCA sets BUF to a newly allocated array of MULTIPLIER *
NITEMS items, each of the same type as *BUF. MULTIPLIER must
/* SAFE_ALLOCA_LISP allocates an array of Lisp_Objects. */
-#define SAFE_ALLOCA_LISP(buf, nelt) \
- do { \
- if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object)) \
- buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object)); \
- else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
- { \
- Lisp_Object arg_; \
- buf = xmalloc ((nelt) * sizeof (Lisp_Object)); \
- arg_ = make_save_value (buf, nelt); \
- XSAVE_VALUE (arg_)->dogc = 1; \
- sa_must_free = 1; \
- record_unwind_protect (safe_alloca_unwind, arg_); \
- } \
- else \
- memory_full (SIZE_MAX); \
+#define SAFE_ALLOCA_LISP(buf, nelt) \
+ do { \
+ if ((nelt) < MAX_ALLOCA / word_size) \
+ buf = alloca ((nelt) * word_size); \
+ else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / word_size) \
+ { \
+ Lisp_Object arg_; \
+ buf = xmalloc ((nelt) * word_size); \
+ arg_ = make_save_value (buf, nelt); \
+ XSAVE_VALUE (arg_)->dogc = 1; \
+ sa_must_free = 1; \
+ record_unwind_protect (safe_alloca_unwind, arg_); \
+ } \
+ else \
+ memory_full (SIZE_MAX); \
} while (0)
#include "globals.h"
+/* Check whether it's time for GC, and run it if so. */
+
+LISP_INLINE void
+maybe_gc (void)
+{
+ if ((consing_since_gc > gc_cons_threshold
+ && consing_since_gc > gc_relative_threshold)
+ || (!NILP (Vmemory_full)
+ && consing_since_gc > memory_full_cons_threshold))
+ Fgarbage_collect ();
+}
+
+INLINE_HEADER_END
+
#endif /* EMACS_LISP_H */
HCoop / bpt / emacs.git / blobdiff