1 /* systty.h - System-dependent definitions for terminals.
2 Copyright (C) 1993, 1994 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
6 GNU Emacs is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Emacs is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Emacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
25 /* If we defined these before and we are about to redefine them,
26 prevent alarming warnings. */
49 /* Include the proper files. */
52 #include <sys/ioctl.h>
56 #endif /* not NO_TERMIO */
57 #ifndef INCLUDED_FCNTL
58 #define INCLUDED_FCNTL
61 #else /* not HAVE_TERMIO */
63 #if defined(_AIX) && defined(_I386)
64 #include <termios.h> /* termios.h needs to be before termio.h */
66 #else /* not HAVE_TERMIOS */
71 #endif /* _AIX && _I386 */
72 #define INCLUDED_FCNTL
74 #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
78 #endif /* not DOS_NT */
89 extern int waiting_for_ast
;
90 extern int stop_input
;
93 extern int process_ef
;
94 extern int input_eflist
;
95 extern int timer_eflist
;
97 static $
DESCRIPTOR (input_dsc
, "TT");
98 static int terminator_mask
[2] = { 0, 0 };
100 static struct sensemode
{
102 unsigned char xmit_baud
;
103 unsigned char rcv_baud
;
104 unsigned char crfill
;
105 unsigned char lffill
;
106 unsigned char parity
;
107 unsigned char unused
;
111 unsigned long tt_char
: 24, scr_len
: 8;
112 unsigned long tt2_char
;
115 #endif /* not HAVE_TERMIOS */
116 #endif /* not HAVE_TERMIO */
118 #ifdef __GNU_LIBRARY__
123 /* Get files for keyboard remapping */
126 #include <sys/devinfo.h>
129 /* Get rid of LLITOUT in 4.1, since it is said to stimulate kernel bugs. */
136 #include <sys/bsdtty.h>
139 #if defined (HPUX) && defined (HAVE_PTYS)
140 #include <sys/ptyio.h>
147 #if (defined (POSIX) || defined (NEED_UNISTD_H)) && defined (HAVE_UNISTD_H)
152 #include <sys/types.h>
155 #include <sys/ttyhw.h>
156 #include <sys/stream.h>
163 /* saka@pfu.fujitsu.co.JP writes:
164 FASYNC defined in this file. But, FASYNC don't working.
165 so no problem, because unrequest_sigio only need. */
167 #include <sys/file.h>
171 /* Special cases - inhibiting the use of certain features. */
178 #undef TIOCGETC /* Avoid confusing some conditionals that test this. */
181 #ifdef BROKEN_TIOCGETC
182 #undef TIOCGETC /* Avoid confusing some conditionals that test this. */
185 /* UNIPLUS systems may have FIONREAD. */
187 #include <sys.ioctl.h>
190 /* Allow m- file to inhibit use of FIONREAD. */
191 #ifdef BROKEN_FIONREAD
196 /* Interrupt input is not used if there is no FIONREAD. */
201 /* On TERMIOS systems, the tcmumbleattr calls take care of these
202 parameters, and it's a bad idea to use them (on AIX, it makes the
203 tty hang for a long time). */
204 #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS)
208 #if defined (TIOCGETC) && !defined (HAVE_TERMIOS)
213 /* Try to establish the correct character to disable terminal functions
214 in a system-independent manner. Note that USG (at least) define
215 _POSIX_VDISABLE as 0! */
217 #ifdef _POSIX_VDISABLE
218 #define CDISABLE _POSIX_VDISABLE
219 #else /* not _POSIX_VDISABLE */
222 #define CDISABLE CDEL
225 #endif /* not CDEL */
226 #endif /* not _POSIX_VDISABLE */
228 /* Get the number of characters queued for output. */
230 /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters
231 queued for output to the terminal FD in *SIZE, if FD is a tty.
232 Returns -1 if there was an error (i.e. FD is not a tty), 0
235 #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TIOCOUTQ, (size)))
240 #undef EMACS_OUTQSIZE
241 #define EMACS_OUTQSIZE(fd, size) (ioctl ((fd), TCOUTQ, (size)))
246 /* Manipulate a terminal's current process group. */
248 /* EMACS_HAVE_TTY_PGRP is true if we can get and set the tty's current
249 controlling process group.
251 EMACS_GET_TTY_PGRP(int FD, int *PGID) sets *PGID the terminal FD's
252 current process group. Return -1 if there is an error.
254 EMACS_SET_TTY_PGRP(int FD, int *PGID) sets the terminal FD's
255 current process group to *PGID. Return -1 if there is an error. */
258 /* HPUX tty process group stuff doesn't work, says the anonymous voice
262 #define EMACS_HAVE_TTY_PGRP
265 #define EMACS_HAVE_TTY_PGRP
270 #ifdef EMACS_HAVE_TTY_PGRP
272 #if defined (HAVE_TERMIOS) && ! defined (BSD_TERMIOS)
274 #define EMACS_GET_TTY_PGRP(fd, pgid) (*(pgid) = tcgetpgrp ((fd)))
275 #define EMACS_SET_TTY_PGRP(fd, pgid) (tcsetpgrp ((fd), *(pgid)))
280 #define EMACS_GET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCGPGRP, (pgid)))
281 #define EMACS_SET_TTY_PGRP(fd, pgid) (ioctl ((fd), TIOCSPGRP, (pgid)))
288 /* Just ignore this for now and hope for the best */
289 #define EMACS_GET_TTY_PGRP(fd, pgid) 0
290 #define EMACS_SET_TTY_PGRP(fd, pgif) 0
294 /* EMACS_GETPGRP (arg) returns the process group of the terminal. */
296 #if defined (USG) && !defined (GETPGRP_NEEDS_ARG)
297 # if !defined (GETPGRP_NO_ARG)
298 # define GETPGRP_NO_ARG
302 #if defined (GETPGRP_NO_ARG)
303 # define EMACS_GETPGRP(x) getpgrp()
305 # define EMACS_GETPGRP(x) getpgrp(x)
306 #endif /* !GETPGRP_NO_ARG */
308 /* Manipulate a TTY's input/output processing parameters. */
310 /* struct emacs_tty is a structure used to hold the current tty
311 parameters. If the terminal has several structures describing its
312 state, for example a struct tchars, a struct sgttyb, a struct
313 tchars, a struct ltchars, and a struct pagechars, struct
314 emacs_tty should contain an element for each parameter struct
315 that Emacs may change.
317 EMACS_GET_TTY (int FD, struct emacs_tty *P) stores the parameters
318 of the tty on FD in *P. Return zero if all's well, or -1 if we ran
319 into an error we couldn't deal with.
321 EMACS_SET_TTY (int FD, struct emacs_tty *P, int flushp)
322 sets the parameters of the tty on FD according to the contents of
323 *P. If flushp is non-zero, we discard queued input to be
324 written before making the change.
325 Return 0 if all went well, and -1 if anything failed.
327 EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel
328 expands tabs to spaces upon output; in that case, there is no
329 advantage to using tabs over spaces. */
332 /* For each tty parameter structure that Emacs might want to save and restore,
333 - include an element for it in this structure, and
334 - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the
339 /* There is always one of the following elements, so there is no need
340 for dummy get and set definitions. */
348 struct sensemode main
;
352 #else /* not DOS_NT */
354 #endif /* not DOS_NT */
359 /* If we have TERMIOS, we don't need to do this - they're taken care of
360 by the tc*attr calls. */
363 struct ltchars ltchars
;
367 struct tchars tchars
;
373 /* Define EMACS_GET_TTY and EMACS_SET_TTY,
374 the macros for reading and setting parts of `struct emacs_tty'.
376 These got pretty unmanageable (huge macros are hard to debug), and
377 finally needed some code which couldn't be done as part of an
378 expression, so we moved them out to their own functions in sysdep.c. */
379 #define EMACS_GET_TTY(fd, p) (emacs_get_tty ((fd), (p)))
380 #define EMACS_SET_TTY(fd, p, waitp) (emacs_set_tty ((fd), (p), (waitp)))
383 /* Define EMACS_TTY_TABS_OK. */
388 #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)
390 #define EMACS_TTY_TABS_OK(p) 1
393 #else /* not def HAVE_TERMIOS */
396 #define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3)
398 #else /* neither HAVE_TERMIO nor HAVE_TERMIOS */
401 #define EMACS_TTY_TABS_OK(p) (((p)->main.tt_char & TT$M_MECHTAB) != 0)
406 #define EMACS_TTY_TABS_OK(p) 0
407 #else /* not DOS_NT */
408 #define EMACS_TTY_TABS_OK(p) (((p)->main.sg_flags & XTABS) != XTABS)
409 #endif /* not DOS_NT */
411 #endif /* not def VMS */
412 #endif /* not def HAVE_TERMIO */
413 #endif /* not def HAVE_TERMIOS */