code.delx.au - gnu-emacs/blob - nt/inc/ms-w32.h

   1 /* System description file for Windows NT.
   2
   3 Copyright (C) 1993-1995, 2001-2013 Free Software Foundation, Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or
  10 (at your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 /* Define symbols to identify the version of Unix this is.
  21    Define all the symbols that apply correctly.  */
  22
  23 #ifndef WINDOWSNT
  24 #define WINDOWSNT
  25 #endif
  26
  27 /* #undef const */
  28
  29 /* Number of chars of output in the buffer of a stdio stream. */
  30 #ifdef __GNU_LIBRARY__
  31 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->__bufp - (FILE)->__buffer)
  32 #else
  33 #define PENDING_OUTPUT_COUNT(FILE) ((FILE)->_ptr - (FILE)->_base)
  34 #endif
  35
  36 /* If you are compiling with a non-C calling convention but need to
  37    declare vararg routines differently, put it here.  */
  38 #define _VARARGS_ __cdecl
  39
  40 /* If you are providing a function to something that will call the
  41    function back (like a signal handler and signal, or main) its calling
  42    convention must be whatever standard the libraries expect.  */
  43 #define _CALLBACK_ __cdecl
  44
  45 /* Define HAVE_TIMEVAL if the system supports the BSD style clock values.
  46    Look in <sys/time.h> for a timeval structure.  */
  47 #define HAVE_TIMEVAL 1
  48
  49 /* But our select implementation doesn't allow us to make non-blocking
  50    connects.  So until that is fixed, this is necessary:  */
  51 #define BROKEN_NON_BLOCKING_CONNECT 1
  52
  53 /* And the select implementation does 1-byte read-ahead waiting
  54    for received packets, so datagrams are broken too.  */
  55 #define BROKEN_DATAGRAM_SOCKETS 1
  56
  57 #define MAIL_USE_SYSTEM_LOCK 1
  58
  59 /* Define to 1 if GCC-style __attribute__ ((__aligned__ (expr))) works. */
  60 #ifdef __GNUC__
  61 #define HAVE_ATTRIBUTE_ALIGNED 1
  62 #endif
  63
  64 /* Define to 1 if strtold conforms to C99. */
  65 #ifdef __GNUC__
  66 #define HAVE_C99_STRTOLD 1
  67 #endif
  68
  69 #if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
  70 #define HAVE___BUILTIN_UNWIND_INIT 1
  71 #endif
  72
  73 /* ============================================================ */
  74
  75 /* Here, add any special hacks needed to make Emacs work on this
  76    system.  For example, you might define certain system call names
  77    that don't exist on your system, or that do different things on
  78    your system and must be used only through an encapsulation (which
  79    you should place, by convention, in sysdep.c).  */
  80
  81 #ifdef __GNUC__
  82 #ifndef __cplusplus
  83 #undef inline
  84 #endif
  85 #else  /* MSVC */
  86 #define inline __inline
  87 #endif
  88
  89 #ifdef __GNUC__
  90 # define restrict __restrict__
  91 #else
  92 # define restrict
  93 #endif
  94
  95 /* `mode_t' is not defined for MSVC. Define. */
  96 #ifdef _MSC_VER
  97 typedef unsigned short mode_t;
  98 #endif
  99
 100 /* A va_copy replacement for MSVC.  */
 101 #ifdef _MSC_VER
 102 # ifdef _WIN64
 103 #  ifndef va_copy               /* Need to be checked (?) */
 104 #   define va_copy(d,s) ((d) = (s))
 105 #  endif
 106 # else  /* not _WIN64 */
 107 #  define va_copy(d,s) ((d) = (s))
 108 # endif  /* not _WIN64 */
 109 #endif   /* _MSC_VER */
 110
 111 #ifndef WINDOWSNT
 112 /* Some of the files of Emacs which are intended for use with other
 113    programs assume that if you have a config.h file, you must declare
 114    the type of getenv.  */
 115 extern char *getenv ();
 116 #endif
 117
 118 #ifdef HAVE_STRINGS_H
 119 #include "strings.h"
 120 #endif
 121 #include <sys/types.h>
 122
 123 #ifndef MAXPATHLEN
 124 #define MAXPATHLEN      _MAX_PATH
 125 #endif
 126
 127 #ifdef HAVE_NTGUI
 128 #define HAVE_WINDOW_SYSTEM 1
 129 #define HAVE_MENUS 1
 130 #endif
 131
 132 /* Get some redefinitions in place.  */
 133
 134 #ifdef emacs
 135
 136 #ifdef _MSC_VER
 137 #include <sys/timeb.h>
 138 #include <sys/stat.h>
 139 #include <signal.h>
 140
 141 /* MSVC gets link-time errors without these redirections.  */
 142 #define fstat(a, b) sys_fstat(a, b)
 143 #define stat(a, b)  sys_stat(a, b)
 144 #define utime       sys_utime
 145 #endif
 146
 147 /* Calls that are emulated or shadowed.  */
 148 #undef chdir
 149 #define chdir   sys_chdir
 150 #undef chmod
 151 #define chmod   sys_chmod
 152 #define chown   sys_chown
 153 #undef close
 154 #define close   sys_close
 155 #undef creat
 156 #define creat   sys_creat
 157 #define ctime   sys_ctime
 158 #undef dup
 159 #define dup     sys_dup
 160 #undef dup2
 161 #define dup2    sys_dup2
 162 #define fopen   sys_fopen
 163 #define link    sys_link
 164 #define localtime sys_localtime
 165 #define mkdir   sys_mkdir
 166 #undef mktemp
 167 #define mktemp  sys_mktemp
 168 #undef open
 169 #define open    sys_open
 170 #define pipe    sys_pipe
 171 #undef read
 172 #define read    sys_read
 173 #define rename  sys_rename
 174 #define rmdir   sys_rmdir
 175 #define select  sys_select
 176 #define pselect sys_select
 177 #define sleep   sys_sleep
 178 #define strerror sys_strerror
 179 #undef unlink
 180 #define unlink  sys_unlink
 181 /* This prototype is needed because some files include config.h
 182    _after_ the standard headers, so sys_unlink gets no prototype from
 183    stdio.h or io.h.  */
 184 extern int sys_unlink (const char *);
 185 #undef write
 186 #define write   sys_write
 187
 188 /* Subprocess calls that are emulated.  */
 189 #define spawnve sys_spawnve
 190 #define kill    sys_kill
 191 #define signal  sys_signal
 192
 193 /* Internal signals.  */
 194 #define emacs_raise(sig) emacs_abort()
 195
 196 /* termcap.c calls that are emulated.  */
 197 #define tputs   sys_tputs
 198 #define tgetstr sys_tgetstr
 199
 200 /* cm.c calls that are emulated.  */
 201 #define chcheckmagic sys_chcheckmagic
 202 #define cmcostinit   sys_cmcostinit
 203 #define cmgoto       sys_cmgoto
 204 #define cmputc       sys_cmputc
 205 #define Wcm_clear    sys_Wcm_clear
 206
 207 #endif /* emacs */
 208
 209 /* Map to MSVC names.  */
 210 #define execlp    _execlp
 211 #define execvp    _execvp
 212 #define fdopen    _fdopen
 213 #ifndef fileno
 214 #define fileno    _fileno
 215 #endif
 216 #define fsync     _commit
 217 #define ftruncate _chsize
 218 #define getpid    _getpid
 219 #ifdef _MSC_VER
 220 typedef int pid_t;
 221 #define snprintf  _snprintf
 222 #define strtoll   _strtoi64
 223 #endif
 224 #define isatty    _isatty
 225 #define logb      _logb
 226 #define _longjmp  longjmp
 227 #define lseek     _lseek
 228 #define popen     _popen
 229 #define pclose    _pclose
 230 #define umask     _umask
 231 #ifndef _MSC_VER
 232 #define utimbuf   _utimbuf
 233 #endif
 234 #define strdup    _strdup
 235 #define strupr    _strupr
 236 #define strnicmp  _strnicmp
 237 #define stricmp   _stricmp
 238 #define tzset     _tzset
 239
 240 /* We cannot include system header process.h, since there's src/process.h.  */
 241 int _getpid (void);
 242
 243 /* Include time.h before redirecting tzname, since MSVC's time.h
 244    defines _tzname to call a function, but also declares tzname a
 245    2-element array.  Having the redirection before including the
 246    header thus has the effect of declaring a function that returns an
 247    array, and triggers an error message.  */
 248 #include <time.h>
 249 #define tzname    _tzname
 250 #if !defined (_MSC_VER) || (_MSC_VER < 1400)
 251 #undef  utime
 252 #define utime     _utime
 253 #endif
 254
 255 /* 'struct timespec' is used by time-related functions in lib/ and
 256    elsewhere, but we don't use lib/time.h where the structure is
 257    defined.  */
 258 struct timespec
 259 {
 260   time_t        tv_sec;         /* seconds */
 261   long int      tv_nsec;        /* nanoseconds */
 262 };
 263
 264 /* Required for functions in lib/time_r.c, since we don't use lib/time.h.  */
 265 extern struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
 266 extern struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
 267
 268 /* This is hacky, but is necessary to avoid warnings about macro
 269    redefinitions using the SDK compilers.  */
 270 #ifndef __STDC__
 271 #define __STDC__ 1
 272 #define MUST_UNDEF__STDC__
 273 #endif
 274 #include <direct.h>
 275 #include <io.h>
 276 #include <stdio.h>
 277 #ifdef MUST_UNDEF__STDC__
 278 #undef __STDC__
 279 #undef MUST_UNDEF__STDC__
 280 #endif
 281
 282 /* Defines that we need that aren't in the standard signal.h.  */
 283 #define SIGHUP  1               /* Hang up */
 284 #define SIGQUIT 3               /* Quit process */
 285 #define SIGTRAP 5               /* Trace trap */
 286 #define SIGKILL 9               /* Die, die die */
 287 #define SIGPIPE 13              /* Write on pipe with no readers */
 288 #define SIGALRM 14              /* Alarm */
 289 #define SIGCHLD 18              /* Death of child */
 290 #define SIGPROF 19              /* Profiling */
 291
 292 #ifndef NSIG
 293 #define NSIG 23
 294 #endif
 295
 296 #ifndef ENOTSUP
 297 #define ENOTSUP ENOSYS
 298 #endif
 299
 300 #ifdef _MSC_VER
 301 typedef int sigset_t;
 302 typedef int ssize_t;
 303 #endif
 304
 305 typedef void (_CALLBACK_ *signal_handler) (int);
 306 extern signal_handler sys_signal (int, signal_handler);
 307
 308 struct sigaction {
 309   int sa_flags;
 310   void (_CALLBACK_ *sa_handler)(int);
 311   sigset_t sa_mask;
 312 };
 313 #define SA_RESTART      0
 314 #define SIG_BLOCK       1
 315 #define SIG_SETMASK     2
 316 #define SIG_UNBLOCK     3
 317
 318 extern int sigemptyset (sigset_t *);
 319 extern int sigaddset (sigset_t *, int);
 320 extern int sigfillset (sigset_t *);
 321 extern int sigprocmask (int, const sigset_t *, sigset_t *);
 322 extern int pthread_sigmask (int, const sigset_t *, sigset_t *);
 323 extern int sigismember (const sigset_t *, int);
 324 extern int setpgrp (int, int);
 325 extern int sigaction (int, const struct sigaction *, struct sigaction *);
 326 extern int alarm (int);
 327
 328 extern int sys_kill (int, int);
 329
 330
 331 /* For integration with MSDOS support.  */
 332 #define getdisk()               (_getdrive () - 1)
 333 #ifdef emacs
 334 #define getdefdir(_drv, _buf)   ((_buf[0] = (_drv + 'A' - 1), _buf[1] = ':', _buf[2] = '/', _buf[3] = 0), 1)
 335 #else
 336 #define getdefdir(_drv, _buf)   _getdcwd (_drv, _buf, MAXPATHLEN)
 337 #endif
 338
 339 extern char *get_emacs_configuration (void);
 340 extern char *get_emacs_configuration_options (void);
 341 #define EMACS_CONFIGURATION     get_emacs_configuration ()
 342 #define EMACS_CONFIG_OPTIONS    get_emacs_configuration_options ()
 343
 344 /* Define this so that winsock.h definitions don't get included with
 345    windows.h.  For this to have proper effect, config.h must always be
 346    included before windows.h.  */
 347 #define _WINSOCKAPI_    1
 348 #define _WINSOCK_H
 349
 350 /* Prevent accidental use of features unavailable in
 351    older Windows versions we still support.  */
 352 #define _WIN32_WINNT 0x0400
 353
 354 /* Make a leaner executable.  */
 355 #define WIN32_LEAN_AND_MEAN 1
 356
 357 /* Defines size_t and alloca ().  */
 358 #ifdef emacs
 359 #define malloc e_malloc
 360 #define free   e_free
 361 #define realloc e_realloc
 362 #define calloc e_calloc
 363 #endif
 364 #ifdef _MSC_VER
 365 #define alloca _alloca
 366 #else
 367 #include <malloc.h>
 368 #endif
 369
 370 #include <stdlib.h>
 371 #include <sys/stat.h>
 372
 373 /* Define for those source files that do not include enough NT system files.  */
 374 #ifndef NULL
 375 #ifdef __cplusplus
 376 #define NULL    0
 377 #else
 378 #define NULL    ((void *)0)
 379 #endif
 380 #endif
 381
 382 /* For proper declaration of environ.  */
 383 #ifndef sys_nerr
 384 #define sys_nerr _sys_nerr
 385 #endif
 386
 387 /* This must be after including stdlib.h, which defines putenv on MinGW.  */
 388 #ifdef putenv
 389 # undef putenv
 390 #endif
 391 #define putenv    sys_putenv
 392 extern int sys_putenv (char *);
 393
 394 extern int getloadavg (double *, int);
 395 extern int getpagesize (void);
 396
 397 #if defined (__MINGW32__)
 398
 399 /* Define to 1 if the system has the type `long long int'. */
 400 # define HAVE_LONG_LONG_INT 1
 401
 402 /* Define to 1 if the system has the type `unsigned long long int'. */
 403 # define HAVE_UNSIGNED_LONG_LONG_INT 1
 404
 405 #endif
 406
 407 #ifdef _MSC_VER
 408 # if defined(_WIN64)
 409 typedef __int64 EMACS_INT;
 410 typedef unsigned __int64 EMACS_UINT;
 411 #  define EMACS_INT_MAX           LLONG_MAX
 412 #  define PRIuMAX                 "llu"
 413 #  define pI                      "ll"
 414 /* Fix a bug in MSVC headers : stdint.h */
 415 #  define _INTPTR 2
 416 # elif defined(_WIN32)
 417 /* Temporarily disable wider-than-pointer integers until they're tested more.
 418    Build with CFLAGS='-DWIDE_EMACS_INT' to try them out.  */
 419
 420 #  ifdef WIDE_EMACS_INT
 421
 422 /* Use pre-C99-style 64-bit integers.  */
 423 typedef __int64 EMACS_INT;
 424 typedef unsigned __int64 EMACS_UINT;
 425 #   define EMACS_INT_MAX           LLONG_MAX
 426 #   define PRIuMAX                 "llu"
 427 #   define pI                     "I64"
 428 #  else
 429 typedef int EMACS_INT;
 430 typedef unsigned int EMACS_UINT;
 431 #   define EMACS_INT_MAX           LONG_MAX
 432 #   define PRIuMAX                 "lu"
 433 #   define pI                     "l"
 434 #  endif
 435 # endif
 436 #endif
 437
 438 /* We need a little extra space, see ../../lisp/loadup.el.  */
 439 #define SYSTEM_PURESIZE_EXTRA 50000
 440
 441 #define DATA_START      get_data_start ()
 442
 443 /* For unexec to work on Alpha systems, we need to put Emacs'
 444    initialized data into a separate section from the CRT initialized
 445    data (because the Alpha linker freely reorders data variables, even
 446    across libraries, so our data and the CRT data get intermingled).
 447
 448    Starting with MSVC 5.0, we must also place the uninitialized data
 449    into its own section.  VC5 intermingles uninitialized data from the CRT
 450    between Emacs' static uninitialized data and its public uninitialized
 451    data.  A separate .bss section for Emacs groups both static and
 452    public uninitialized together.
 453
 454    Note that unexw32.c relies on this fact, and must be modified
 455    accordingly if this section name is changed, or if this pragma is
 456    removed.  Also, obviously, all files that define initialized data
 457    must include config.h to pick up this pragma.  */
 458
 459 /* Names must be < 8 bytes.  */
 460 #ifdef _MSC_VER
 461 #pragma data_seg("EMDATA")
 462 #pragma bss_seg("EMBSS")
 463 #endif
 464
 465 /* #define FULL_DEBUG */
 466 /* #define EMACSDEBUG */
 467
 468 #ifdef EMACSDEBUG
 469 extern void _DebPrint (const char *fmt, ...);
 470 #define DebPrint(stuff) _DebPrint stuff
 471 #else
 472 #define DebPrint(stuff)
 473 #endif
 474
 475 #ifdef _MSC_VER
 476 #if _MSC_VER >= 800 && !defined(__cplusplus)
 477 /* Unnamed type definition in parentheses.
 478    A structure, union, or enumerated type with no name is defined in a
 479    parenthetical expression.  The type definition is meaningless.  */
 480 #pragma warning(disable:4116)
 481 /* 'argument' : conversion from 'type1' to 'type2', possible loss of
 482    data A floating point type was converted to an integer type.  A
 483    possible loss of data may have occurred.  */
 484 #pragma warning(disable:4244)
 485 /* Negative integral constant converted to unsigned type.
 486    An expression converts a negative integer constant to an unsigned type.
 487    The result of the expression is probably meaningless.  */
 488 #pragma warning(disable:4308)
 489 #endif
 490 #endif
 491 #define TERM_HEADER "w32term.h"
 492
 493
 494 /* ============================================================ */