X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/1a4f1e9b4805cd80952946b5f4461eeb467d9509..fee0bd5f3248ba4485e9a08fdb30cad5b20f7f74:/src/lisp.h diff --git a/src/lisp.h b/src/lisp.h index e6594b5890..3ec188b67c 100644 --- a/src/lisp.h +++ b/src/lisp.h @@ -20,10 +20,12 @@ along with GNU Emacs. If not, see . */ #ifndef EMACS_LISP_H #define EMACS_LISP_H +#include #include #include #include #include +#include #include #include @@ -220,7 +222,9 @@ enum enum_USE_LSB_TAG { USE_LSB_TAG = 0 }; /* Define the fundamental Lisp data structures. */ -/* This is the set of Lisp data types. */ +/* This is the set of Lisp data types. If you want to define a new + data type, read the comments after Lisp_Fwd_Type definition + below. */ /* 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. */ @@ -296,6 +300,53 @@ enum Lisp_Fwd_Type Lisp_Fwd_Kboard_Obj, /* Fwd to a Lisp_Object field of kboards. */ }; +/* If you want to define a new Lisp data type, here are some + instructions. See the thread at + http://lists.gnu.org/archive/html/emacs-devel/2012-10/msg00561.html + for more info. + + First, there are already a couple of Lisp types that can be used if + your new type does not need to be exposed to Lisp programs nor + displayed to users. These are Lisp_Save_Value, a Lisp_Misc + subtype; and PVEC_OTHER, a kind of vectorlike object. The former + is suitable for temporarily stashing away pointers and integers in + a Lisp object (see the existing uses of make_save_value and + XSAVE_VALUE). The latter is useful for vector-like Lisp objects + that need to be used as part of other objects, but which are never + shown to users or Lisp code (search for PVEC_OTHER in xterm.c for + an example). + + These two types don't look pretty when printed, so they are + unsuitable for Lisp objects that can be exposed to users. + + To define a new data type, add one more Lisp_Misc subtype or one + more pseudovector subtype. Pseudovectors are more suitable for + objects with several slots that need to support fast random access, + while Lisp_Misc types are for everything else. A pseudovector object + provides one or more slots for Lisp objects, followed by struct + members that are accessible only from C. A Lisp_Misc object is a + wrapper for a C struct that can contain anything you like. + + To add a new pseudovector type, extend the pvec_type enumeration; + to add a new Lisp_Misc, extend the Lisp_Misc_Type enumeration. + + For a Lisp_Misc, you will also need to add your entry to union + Lisp_Misc (but make sure the first word has the same structure as + the others, starting with a 16-bit member of the Lisp_Misc_Type + enumeration and a 1-bit GC markbit) and make sure the overall size + of the union is not increased by your addition. + + Then you will need to add switch branches in print.c (in + print_object, to print your object, and possibly also in + print_preprocess) and to alloc.c, to mark your object (in + mark_object) and to free it (in gc_sweep). The latter is also the + right place to call any code specific to your data type that needs + to run when the object is recycled -- e.g., free any additional + resources allocated for it that are not Lisp objects. You can even + make a pointer to the function that frees the resources a slot in + your object -- this way, the same object could be used to represent + several disparate C structures. */ + #ifdef CHECK_LISP_OBJECT_TYPE typedef struct { EMACS_INT i; } Lisp_Object; @@ -325,7 +376,7 @@ enum CHECK_LISP_OBJECT_TYPE { CHECK_LISP_OBJECT_TYPE = 1 }; typedef EMACS_INT Lisp_Object; #define XLI(o) (o) #define XIL(i) (i) -#define LISP_MAKE_RVALUE(o) (0+(o)) +#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 */ @@ -343,15 +394,11 @@ static ptrdiff_t const PSEUDOVECTOR_FLAG = 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 - indicate the actual type. - We use a bitset, even tho only one of the bits can be set at any - particular time just so as to be able to use micro-optimizations such as - testing membership of a particular subset of pseudovectors in Fequal. - It is not crucial, but there are plenty of bits here, so why not do it? */ + PSEUDOVECTOR_FLAG bit set, and one of the following values extracted + with PVEC_TYPE_MASK to indicate the actual type. */ enum pvec_type { - PVEC_NORMAL_VECTOR = 0, /* Unused! */ + PVEC_NORMAL_VECTOR, PVEC_FREE, PVEC_PROCESS, PVEC_FRAME, @@ -417,9 +464,9 @@ enum lsb_bits #define XINT(a) (XLI (a) >> INTTYPEBITS) #define XUINT(a) ((EMACS_UINT) XLI (a) >> INTTYPEBITS) #define make_number(N) XIL ((EMACS_INT) (N) << INTTYPEBITS) -#define XSET(var, type, ptr) \ +#define make_lisp_ptr(ptr, type) \ (eassert (XTYPE (XIL ((intptr_t) (ptr))) == 0), /* Check alignment. */ \ - (var) = XIL ((type) | (intptr_t) (ptr))) + XIL ((type) | (intptr_t) (ptr))) #define XPNTR(a) ((intptr_t) (XLI (a) & ~TYPEMASK)) #define XUNTAG(a, type) ((intptr_t) (XLI (a) - (type))) @@ -444,13 +491,13 @@ static EMACS_INT const VALMASK #define XUINT(a) ((EMACS_UINT) (XLI (a) & INTMASK)) #define make_number(N) XIL ((EMACS_INT) (N) & INTMASK) -#define XSET(var, type, ptr) \ - ((var) = XIL ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \ - + ((intptr_t) (ptr) & VALMASK))) +#define make_lisp_ptr(ptr, type) \ + (XIL ((EMACS_INT) ((EMACS_UINT) (type) << VALBITS) \ + + ((intptr_t) (ptr) & VALMASK))) #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 */ + which were stored in a Lisp_Object. */ #define XPNTR(a) ((uintptr_t) ((XLI (a) & VALMASK)) | DATA_SEG_BITS)) #else #define XPNTR(a) ((uintptr_t) (XLI (a) & VALMASK)) @@ -554,16 +601,16 @@ clip_to_bounds (ptrdiff_t lower, EMACS_INT num, ptrdiff_t upper) /* Construct a Lisp_Object from a value or address. */ -#define XSETINT(a, b) (a) = make_number (b) -#define XSETCONS(a, b) XSET (a, Lisp_Cons, b) -#define XSETVECTOR(a, b) XSET (a, Lisp_Vectorlike, b) -#define XSETSTRING(a, b) XSET (a, Lisp_String, b) -#define XSETSYMBOL(a, b) XSET (a, Lisp_Symbol, b) -#define XSETFLOAT(a, b) XSET (a, Lisp_Float, b) +#define XSETINT(a, b) ((a) = make_number (b)) +#define XSETCONS(a, b) ((a) = make_lisp_ptr (b, Lisp_Cons)) +#define XSETVECTOR(a, b) ((a) = make_lisp_ptr (b, Lisp_Vectorlike)) +#define XSETSTRING(a, b) ((a) = make_lisp_ptr (b, Lisp_String)) +#define XSETSYMBOL(a, b) ((a) = make_lisp_ptr (b, Lisp_Symbol)) +#define XSETFLOAT(a, b) ((a) = make_lisp_ptr (b, Lisp_Float)) /* Misc types. */ -#define XSETMISC(a, b) XSET (a, Lisp_Misc, b) +#define XSETMISC(a, b) ((a) = make_lisp_ptr (b, Lisp_Misc)) #define XSETMARKER(a, b) (XSETMISC (a, b), XMISCTYPE (a) = Lisp_Misc_Marker) /* Pseudovector types. */ @@ -1486,6 +1533,16 @@ struct Lisp_Float #define XFLOAT_DATA(f) (0 ? XFLOAT (f)->u.data : XFLOAT (f)->u.data) #define XFLOAT_INIT(f, n) (XFLOAT (f)->u.data = (n)) +/* Most hosts nowadays use IEEE floating point, so they use IEC 60559 + representations, have infinities and NaNs, and do not trap on + exceptions. Define IEEE_FLOATING_POINT if this host is one of the + typical ones. The C11 macro __STDC_IEC_559__ is close to what is + wanted here, but is not quite right because Emacs does not require + all the features of C11 Annex F (and does not require C11 at all, + for that matter). */ +#define IEEE_FLOATING_POINT (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \ + && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128) + /* A character, declared with the following typedef, is a member of some character set associated with the current buffer. */ #ifndef _UCHAR_T /* Protect against something in ctab.h on AIX. */ @@ -1619,7 +1676,7 @@ typedef struct { int mouse_face_image_state; } Mouse_HLInfo; -/* Data type checking */ +/* Data type checking. */ #define NILP(x) EQ (x, Qnil) @@ -1963,7 +2020,25 @@ extern void defvar_kboard (struct Lisp_Kboard_Objfwd *, const char *, int); static struct Lisp_Kboard_Objfwd ko_fwd; \ defvar_kboard (&ko_fwd, lname, offsetof (KBOARD, vname ## _)); \ } while (0) - + +/* Save and restore the instruction and environment pointers, + without affecting the signal mask. */ + +#ifdef HAVE__SETJMP +typedef jmp_buf sys_jmp_buf; +# define sys_setjmp(j) _setjmp (j) +# define sys_longjmp(j, v) _longjmp (j, v) +#elif defined HAVE_SIGSETJMP +typedef sigjmp_buf sys_jmp_buf; +# define sys_setjmp(j) sigsetjmp (j, 0) +# define sys_longjmp(j, v) siglongjmp (j, v) +#else +/* A platform that uses neither _longjmp nor siglongjmp; assume + longjmp does not affect the sigmask. */ +typedef jmp_buf sys_jmp_buf; +# define sys_setjmp(j) setjmp (j) +# define sys_longjmp(j, v) longjmp (j, v) +#endif /* Structure for recording Lisp call stack for backtrace purposes. */ @@ -1992,7 +2067,7 @@ struct specbinding { Lisp_Object symbol, old_value; specbinding_func func; - Lisp_Object unused; /* Dividing by 16 is faster than by 12 */ + Lisp_Object unused; /* Dividing by 16 is faster than by 12. */ }; extern struct specbinding *specpdl; @@ -2001,7 +2076,22 @@ extern ptrdiff_t specpdl_size; #define SPECPDL_INDEX() (specpdl_ptr - specpdl) -/* Everything needed to describe an active condition case. */ +struct backtrace +{ + struct backtrace *next; + Lisp_Object function; + Lisp_Object *args; /* Points to vector of args. */ + ptrdiff_t nargs; /* Length of vector. */ + /* Nonzero means call value of debugger when done with this operation. */ + unsigned int debug_on_exit : 1; +}; + +extern struct backtrace *backtrace_list; + +/* Everything needed to describe an active condition case. + + Members are volatile if their values need to survive _longjmp when + a 'struct handler' is a local variable. */ struct handler { /* The handler clauses and variable from the condition-case form. */ @@ -2012,10 +2102,12 @@ struct handler error: handle all conditions, and errors can run the debugger or display a backtrace. */ Lisp_Object handler; - Lisp_Object var; + + Lisp_Object volatile var; + /* Fsignal stores here the condition-case clause that applies, and Fcondition_case thus knows which clause to run. */ - Lisp_Object chosen_clause; + Lisp_Object volatile chosen_clause; /* Used to effect the longjump out to the handler. */ struct catchtag *tag; @@ -2041,19 +2133,21 @@ struct handler of the catch form. All the other members are concerned with restoring the interpreter - state. */ + state. + Members are volatile if their values need to survive _longjmp when + a 'struct catchtag' is a local variable. */ struct catchtag { Lisp_Object tag; - Lisp_Object val; - struct catchtag *next; + Lisp_Object volatile val; + struct catchtag *volatile next; struct gcpro *gcpro; - jmp_buf jmp; + sys_jmp_buf jmp; struct backtrace *backlist; struct handler *handlerlist; EMACS_INT lisp_eval_depth; - ptrdiff_t pdlcount; + ptrdiff_t volatile pdlcount; int poll_suppress_count; int interrupt_input_blocked; struct byte_stack *byte_stack; @@ -2081,22 +2175,16 @@ extern char *stack_bottom; If quit-flag is set to `kill-emacs' the SIGINT handler has received a request to exit Emacs when it is safe to do. */ -#ifdef SYNC_INPUT extern void process_pending_signals (void); -extern int pending_signals; -#define ELSE_PENDING_SIGNALS \ - else if (pending_signals) \ - process_pending_signals (); -#else /* not SYNC_INPUT */ -#define ELSE_PENDING_SIGNALS -#endif /* not SYNC_INPUT */ +extern bool volatile pending_signals; extern void process_quit_flag (void); #define QUIT \ do { \ if (!NILP (Vquit_flag) && NILP (Vinhibit_quit)) \ process_quit_flag (); \ - ELSE_PENDING_SIGNALS \ + else if (pending_signals) \ + process_pending_signals (); \ } while (0) @@ -2559,8 +2647,7 @@ extern Lisp_Object Qchar_table_p, Qvector_or_char_table_p; extern Lisp_Object Qcdr; -extern Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error; -extern Lisp_Object Qoverflow_error, Qunderflow_error; +extern Lisp_Object Qrange_error, Qoverflow_error; extern Lisp_Object Qfloatp; extern Lisp_Object Qnumberp, Qnumber_or_marker_p; @@ -2571,10 +2658,10 @@ extern Lisp_Object Qfont_spec, Qfont_entity, Qfont_object; EXFUN (Fbyteorder, 0) ATTRIBUTE_CONST; -/* Defined in frame.c */ +/* Defined in frame.c. */ extern Lisp_Object Qframep; -/* Defined in data.c */ +/* Defined in data.c. */ extern Lisp_Object indirect_function (Lisp_Object); extern Lisp_Object find_symbol_value (Lisp_Object); @@ -2614,14 +2701,13 @@ extern _Noreturn Lisp_Object wrong_type_argument (Lisp_Object, Lisp_Object); extern Lisp_Object do_symval_forwarding (union Lisp_Fwd *); extern void set_internal (Lisp_Object, Lisp_Object, Lisp_Object, bool); extern void syms_of_data (void); -extern void init_data (void); extern void swap_in_global_binding (struct Lisp_Symbol *); /* Defined in cmds.c */ extern void syms_of_cmds (void); extern void keys_of_cmds (void); -/* Defined in coding.c */ +/* Defined in coding.c. */ extern Lisp_Object Qcharset; extern Lisp_Object detect_coding_system (const unsigned char *, ptrdiff_t, ptrdiff_t, bool, bool, Lisp_Object); @@ -2629,7 +2715,7 @@ extern void init_coding (void); extern void init_coding_once (void); extern void syms_of_coding (void); -/* Defined in character.c */ +/* 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); @@ -2637,21 +2723,21 @@ 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 charset.c. */ extern void init_charset (void); extern void init_charset_once (void); extern void syms_of_charset (void); /* Structure forward declarations. */ struct charset; -/* Defined in composite.c */ +/* Defined in composite.c. */ extern void syms_of_composite (void); -/* Defined in syntax.c */ +/* Defined in syntax.c. */ extern void init_syntax_once (void); extern void syms_of_syntax (void); -/* Defined in fns.c */ +/* Defined in fns.c. */ extern Lisp_Object QCrehash_size, QCrehash_threshold; enum { NEXT_ALMOST_PRIME_LIMIT = 11 }; EXFUN (Fidentity, 1) ATTRIBUTE_CONST; @@ -2685,13 +2771,12 @@ extern Lisp_Object string_to_multibyte (Lisp_Object); extern Lisp_Object string_make_unibyte (Lisp_Object); extern void syms_of_fns (void); -/* Defined in floatfns.c */ +/* Defined in floatfns.c. */ extern double extract_float (Lisp_Object); -extern void init_floatfns (void); extern void syms_of_floatfns (void); extern Lisp_Object fmod_float (Lisp_Object x, Lisp_Object y); -/* Defined in fringe.c */ +/* Defined in fringe.c. */ extern void syms_of_fringe (void); extern void init_fringe (void); #ifdef HAVE_WINDOW_SYSTEM @@ -2699,13 +2784,14 @@ extern void mark_fringe_data (void); extern void init_fringe_once (void); #endif /* HAVE_WINDOW_SYSTEM */ -/* Defined in image.c */ +/* Defined in image.c. */ extern Lisp_Object QCascent, QCmargin, QCrelief; extern Lisp_Object QCconversion; extern int x_bitmap_mask (struct frame *, ptrdiff_t); +extern void reset_image_types (void); extern void syms_of_image (void); -/* Defined in insdel.c */ +/* Defined in insdel.c. */ extern Lisp_Object Qinhibit_modification_hooks; extern void move_gap (ptrdiff_t); extern void move_gap_both (ptrdiff_t, ptrdiff_t); @@ -2751,7 +2837,7 @@ extern void replace_range_2 (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, const char *, ptrdiff_t, ptrdiff_t, bool); extern void syms_of_insdel (void); -/* Defined in dispnew.c */ +/* Defined in dispnew.c. */ #if (defined PROFILING \ && (defined __FreeBSD__ || defined GNU_LINUX || defined __MINGW32__)) _Noreturn void __executable_start (void); @@ -2762,7 +2848,7 @@ extern Lisp_Object sit_for (Lisp_Object, bool, int); extern void init_display (void); extern void syms_of_display (void); -/* Defined in xdisp.c */ +/* Defined in xdisp.c. */ extern Lisp_Object Qinhibit_point_motion_hooks; extern Lisp_Object Qinhibit_redisplay, Qdisplay; extern Lisp_Object Qmenu_bar_update_hook; @@ -2813,17 +2899,15 @@ extern Lisp_Object safe_eval (Lisp_Object); extern int pos_visible_p (struct window *, ptrdiff_t, int *, int *, int *, int *, int *, int *); -/* Defined in xsettings.c */ +/* Defined in xsettings.c. */ extern void syms_of_xsettings (void); /* Defined in vm-limit.c. */ extern void memory_warnings (void *, void (*warnfun) (const char *)); -/* Defined in alloc.c */ +/* Defined in alloc.c. */ extern void check_pure_size (void); extern void allocate_string_data (struct Lisp_String *, EMACS_INT, EMACS_INT); -extern void reset_malloc_hooks (void); -extern void uninterrupt_malloc (void); extern void malloc_warning (const char *); extern _Noreturn void memory_full (size_t); extern _Noreturn void buffer_memory_full (ptrdiff_t); @@ -2889,6 +2973,7 @@ build_string (const char *str) extern Lisp_Object pure_cons (Lisp_Object, Lisp_Object); extern void make_byte_code (struct Lisp_Vector *); +extern Lisp_Object Qautomatic_gc; extern Lisp_Object Qchar_table_extra_slots; extern struct Lisp_Vector *allocate_vector (EMACS_INT); extern struct Lisp_Vector *allocate_pseudovector (int memlen, int lisplen, int tag); @@ -2922,7 +3007,7 @@ extern void check_cons_list (void); #endif #ifdef REL_ALLOC -/* Defined in ralloc.c */ +/* Defined in ralloc.c. */ extern void *r_alloc (void **, size_t); extern void r_alloc_free (void **); extern void *r_re_alloc (void **, size_t); @@ -2930,7 +3015,7 @@ extern void r_alloc_reset_variable (void **, void **); extern void r_alloc_inhibit_buffer_relocation (int); #endif -/* Defined in chartab.c */ +/* Defined in chartab.c. */ extern Lisp_Object copy_char_table (Lisp_Object); extern Lisp_Object char_table_ref (Lisp_Object, int); extern Lisp_Object char_table_ref_and_range (Lisp_Object, int, @@ -2948,7 +3033,7 @@ extern void map_char_table_for_charset (void (*c_function) (Lisp_Object, Lisp_Ob extern Lisp_Object uniprop_table (Lisp_Object); extern void syms_of_chartab (void); -/* Defined in print.c */ +/* Defined in print.c. */ extern Lisp_Object Vprin1_to_string_buffer; extern void debug_print (Lisp_Object) EXTERNALLY_VISIBLE; extern Lisp_Object Qstandard_output; @@ -2965,7 +3050,7 @@ enum FLOAT_TO_STRING_BUFSIZE { FLOAT_TO_STRING_BUFSIZE = 350 }; extern int float_to_string (char *, double); extern void syms_of_print (void); -/* Defined in doprnt.c */ +/* Defined in doprnt.c. */ extern ptrdiff_t doprnt (char *, ptrdiff_t, const char *, const char *, va_list); extern ptrdiff_t esprintf (char *, char const *, ...) @@ -2991,7 +3076,7 @@ extern Lisp_Object oblookup (Lisp_Object, const char *, ptrdiff_t, ptrdiff_t); } while (0) extern int openp (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object *, Lisp_Object); -Lisp_Object string_to_number (char const *, int, int); +extern Lisp_Object string_to_number (char const *, int, bool); extern void map_obarray (Lisp_Object, void (*) (Lisp_Object, Lisp_Object), Lisp_Object); extern void dir_warning (const char *, Lisp_Object); @@ -3019,7 +3104,6 @@ extern Lisp_Object Qand_rest; extern Lisp_Object Vautoload_queue; extern Lisp_Object Vsignaling_function; extern Lisp_Object inhibit_lisp_code; -extern int handling_signal; #if BYTE_MARK_STACK extern struct catchtag *catchlist; extern struct handler *handlerlist; @@ -3092,7 +3176,6 @@ extern Lisp_Object make_buffer_string (ptrdiff_t, ptrdiff_t, bool); extern Lisp_Object make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, bool); extern void init_editfns (void); -const char *get_system_name (void); extern void syms_of_editfns (void); extern void set_time_zone_rule (const char *); @@ -3131,7 +3214,7 @@ extern Lisp_Object set_marker_restricted_both (Lisp_Object, Lisp_Object, extern Lisp_Object build_marker (struct buffer *, ptrdiff_t, ptrdiff_t); extern void syms_of_marker (void); -/* Defined in fileio.c */ +/* Defined in fileio.c. */ extern Lisp_Object Qfile_error; extern Lisp_Object Qfile_exists_p; @@ -3139,7 +3222,7 @@ extern Lisp_Object Qfile_directory_p; extern Lisp_Object Qinsert_file_contents; extern Lisp_Object Qfile_name_history; extern Lisp_Object expand_and_dir_to_file (Lisp_Object, Lisp_Object); -EXFUN (Fread_file_name, 6); /* not a normal DEFUN */ +EXFUN (Fread_file_name, 6); /* Not a normal DEFUN. */ extern Lisp_Object close_file_unwind (Lisp_Object); extern Lisp_Object restore_point_unwind (Lisp_Object); extern _Noreturn void report_file_error (const char *, Lisp_Object); @@ -3147,8 +3230,9 @@ extern void internal_delete_file (Lisp_Object); extern void syms_of_fileio (void); extern Lisp_Object make_temp_name (Lisp_Object, bool); extern Lisp_Object Qdelete_file; +extern bool check_existing (const char *); -/* Defined in search.c */ +/* Defined in search.c. */ extern void shrink_regexp_cache (void); extern void restore_search_regs (void); extern void record_unwind_save_match_data (void); @@ -3163,9 +3247,9 @@ 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 ptrdiff_t scan_buffer (int, ptrdiff_t, ptrdiff_t, ptrdiff_t, - ptrdiff_t *, int); + ptrdiff_t *, bool); extern EMACS_INT scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, - EMACS_INT, int); + EMACS_INT, bool); extern ptrdiff_t find_next_newline (ptrdiff_t, int); extern ptrdiff_t find_next_newline_no_quit (ptrdiff_t, ptrdiff_t); extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t); @@ -3208,14 +3292,17 @@ 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 bool input_pending; extern Lisp_Object menu_bar_items (Lisp_Object); extern Lisp_Object tool_bar_items (Lisp_Object, int *); extern void discard_mouse_events (void); +#ifdef USABLE_SIGIO +void handle_input_available_signal (int); +#endif extern Lisp_Object pending_funcalls; -extern int detect_input_pending (void); -extern int detect_input_pending_ignore_squeezables (void); -extern int detect_input_pending_run_timers (int); +extern bool detect_input_pending (void); +extern bool detect_input_pending_ignore_squeezables (void); +extern bool detect_input_pending_run_timers (bool); extern void safe_run_hooks (Lisp_Object); extern void cmd_error_internal (Lisp_Object, const char *); extern Lisp_Object command_loop_1 (void); @@ -3229,7 +3316,7 @@ extern void keys_of_keyboard (void); /* 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 bool indented_beyond_p (ptrdiff_t, ptrdiff_t, EMACS_INT); extern void syms_of_indent (void); /* Defined in frame.c. */ @@ -3254,8 +3341,11 @@ extern bool display_arg; extern Lisp_Object decode_env_path (const char *, const char *); extern Lisp_Object empty_unibyte_string, empty_multibyte_string; extern Lisp_Object Qfile_name_handler_alist; -extern _Noreturn void fatal_error_backtrace (int, int); +extern _Noreturn void terminate_due_to_signal (int, int); extern Lisp_Object Qkill_emacs; +#ifdef WINDOWSNT +extern Lisp_Object Vlibrary_cache; +#endif #if HAVE_SETLOCALE void fixup_locale (void); void synchronize_system_messages_locale (void); @@ -3291,7 +3381,7 @@ extern bool running_asynch_code; extern Lisp_Object QCtype, Qlocal; extern Lisp_Object Qprocessp; extern void kill_buffer_processes (Lisp_Object); -extern int wait_reading_process_output (intmax_t, int, int, int, +extern int wait_reading_process_output (intmax_t, int, int, bool, Lisp_Object, struct Lisp_Process *, int); @@ -3323,14 +3413,14 @@ extern void init_callproc (void); extern void set_initial_environment (void); extern void syms_of_callproc (void); -/* Defined in doc.c */ +/* Defined in doc.c. */ extern Lisp_Object Qfunction_documentation; extern Lisp_Object read_doc_string (Lisp_Object); extern Lisp_Object get_doc_string (Lisp_Object, bool, bool); extern void syms_of_doc (void); extern int read_bytecode_char (bool); -/* Defined in bytecode.c */ +/* Defined in bytecode.c. */ extern Lisp_Object Qbytecode; extern void syms_of_bytecode (void); extern struct byte_stack *byte_stack_list; @@ -3341,12 +3431,12 @@ extern void unmark_byte_stack (void); extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, ptrdiff_t, Lisp_Object *); -/* Defined in macros.c */ +/* Defined in macros.c. */ extern Lisp_Object Qexecute_kbd_macro; extern void init_macros (void); extern void syms_of_macros (void); -/* Defined in undo.c */ +/* Defined in undo.c. */ extern Lisp_Object Qapply; extern Lisp_Object Qinhibit_read_only; extern void truncate_undo_list (struct buffer *); @@ -3359,7 +3449,7 @@ extern void record_property_change (ptrdiff_t, ptrdiff_t, Lisp_Object, Lisp_Object, Lisp_Object); extern void syms_of_undo (void); -/* Defined in textprop.c */ +/* Defined in textprop.c. */ extern Lisp_Object Qfont, Qmouse_face; extern Lisp_Object Qinsert_in_front_hooks, Qinsert_behind_hooks; extern Lisp_Object Qfront_sticky, Qrear_nonsticky; @@ -3367,23 +3457,24 @@ extern Lisp_Object Qminibuffer_prompt; extern void report_interval_modification (Lisp_Object, Lisp_Object); -/* Defined in menu.c */ +/* Defined in menu.c. */ extern void syms_of_menu (void); -/* Defined in xmenu.c */ +/* Defined in xmenu.c. */ extern void syms_of_xmenu (void); -/* Defined in termchar.h */ +/* Defined in termchar.h. */ struct tty_display_info; -/* Defined in termhooks.h */ +/* Defined in termhooks.h. */ struct terminal; -/* Defined in sysdep.c */ +/* Defined in sysdep.c. */ #ifndef HAVE_GET_CURRENT_DIR_NAME extern char *get_current_dir_name (void); #endif extern void stuff_char (char c); +extern void init_foreground_group (void); extern void init_sigio (int); extern void sys_subshell (void); extern void sys_suspend (void); @@ -3392,8 +3483,6 @@ extern void init_sys_modes (struct tty_display_info *); extern void reset_sys_modes (struct tty_display_info *); extern void init_all_sys_modes (void); 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) ATTRIBUTE_CONST; extern void child_setup_tty (int); extern void setup_pty (int); @@ -3416,45 +3505,45 @@ extern void unlock_file (Lisp_Object); extern void unlock_buffer (struct buffer *); extern void syms_of_filelock (void); -/* Defined in sound.c */ +/* Defined in sound.c. */ extern void syms_of_sound (void); -/* Defined in category.c */ +/* Defined in category.c. */ extern void init_category_once (void); extern Lisp_Object char_category_set (int); extern void syms_of_category (void); -/* Defined in ccl.c */ +/* Defined in ccl.c. */ extern void syms_of_ccl (void); -/* Defined in dired.c */ +/* Defined in dired.c. */ extern void syms_of_dired (void); extern Lisp_Object directory_files_internal (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, bool, Lisp_Object); -/* Defined in term.c */ +/* Defined in term.c. */ extern int *char_ins_del_vector; extern void syms_of_term (void); extern _Noreturn void fatal (const char *msgid, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); -/* Defined in terminal.c */ +/* Defined in terminal.c. */ extern void syms_of_terminal (void); -/* Defined in font.c */ +/* Defined in font.c. */ extern void syms_of_font (void); extern void init_font (void); #ifdef HAVE_WINDOW_SYSTEM -/* Defined in fontset.c */ +/* Defined in fontset.c. */ extern void syms_of_fontset (void); -/* Defined in xfns.c, w32fns.c, or macfns.c */ +/* Defined in xfns.c, w32fns.c, or macfns.c. */ extern Lisp_Object Qfont_param; #endif -/* Defined in xfaces.c */ +/* Defined in xfaces.c. */ extern Lisp_Object Qdefault, Qtool_bar, Qfringe; extern Lisp_Object Qheader_line, Qscroll_bar, Qcursor; extern Lisp_Object Qmode_line_inactive; @@ -3470,26 +3559,26 @@ extern Lisp_Object Vface_alternative_font_registry_alist; extern void syms_of_xfaces (void); #ifdef HAVE_X_WINDOWS -/* Defined in xfns.c */ +/* Defined in xfns.c. */ extern void syms_of_xfns (void); -/* Defined in xsmfns.c */ +/* Defined in xsmfns.c. */ extern void syms_of_xsmfns (void); -/* Defined in xselect.c */ +/* Defined in xselect.c. */ extern void syms_of_xselect (void); -/* Defined in xterm.c */ +/* Defined in xterm.c. */ extern void syms_of_xterm (void); #endif /* HAVE_X_WINDOWS */ #ifdef HAVE_WINDOW_SYSTEM -/* Defined in xterm.c, nsterm.m, w32term.c */ +/* Defined in xterm.c, nsterm.m, w32term.c. */ extern char *x_get_keysym_name (int); #endif /* HAVE_WINDOW_SYSTEM */ #ifdef HAVE_LIBXML2 -/* Defined in xml.c */ +/* Defined in xml.c. */ extern void syms_of_xml (void); extern void xml_cleanup_parser (void); #endif @@ -3500,12 +3589,19 @@ extern int have_menus_p (void); #endif #ifdef HAVE_DBUS -/* Defined in dbusbind.c */ +/* Defined in dbusbind.c. */ void syms_of_dbusbind (void); #endif + +/* Defined in profiler.c. */ +extern bool profiler_memory_running; +extern void malloc_probe (size_t); +extern void syms_of_profiler (void); + + #ifdef DOS_NT -/* Defined in msdos.c, w32.c */ +/* Defined in msdos.c, w32.c. */ extern char *emacs_root_dir (void); #endif /* DOS_NT */ @@ -3513,7 +3609,8 @@ extern char *emacs_root_dir (void); Used during startup to detect startup of dumped Emacs. */ extern bool initialized; -extern int immediate_quit; /* Nonzero means ^G can quit instantly */ +/* True means ^G can quit instantly. */ +extern bool immediate_quit; extern void *xmalloc (size_t); extern void *xzalloc (size_t); @@ -3546,7 +3643,7 @@ extern void init_system_name (void); /* SAFE_ALLOCA normally allocates memory on the stack, but if size is larger than MAX_ALLOCA, use xmalloc to avoid overflowing the stack. */ -enum MAX_ALLOCA { 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);