Mercurial > hg > xemacs-beta
annotate src/systty.h @ 5561:9a93bc90b3bd
Add a defsetf for get-char-table, necessary for the tests in the last commit.
lisp/ChangeLog addition:
2011-09-04 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (get-char-table): Add a defsetf for this.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 04 Sep 2011 20:35:31 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 428 | 1 /* systty.h - System-dependent definitions for terminals. |
| 2 Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of XEmacs. | |
| 5 | |
|
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6 XEmacs is free software: you can redistribute it and/or modify it |
| 428 | 7 under the terms of the GNU General Public License as published by the |
|
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8 Free Software Foundation, either version 3 of the License, or (at your |
|
308d34e9f07d
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parents:
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9 option) any later version. |
| 428 | 10 |
| 11 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
|
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17 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 428 | 18 |
| 19 /* Synched up with: FSF 19.30. */ | |
| 20 | |
| 440 | 21 #ifndef INCLUDED_systty_h_ |
| 22 #define INCLUDED_systty_h_ | |
| 428 | 23 |
| 24 #ifdef HAVE_TERMIOS | |
| 25 # define HAVE_TCATTR | |
| 26 #endif | |
| 27 | |
| 28 | |
| 29 /* Include the proper files. */ | |
| 30 | |
| 31 #ifdef HAVE_UNISTD_H | |
| 32 #include <unistd.h> | |
| 33 #endif | |
| 34 | |
| 35 /* XEmacs: TERMIOS is mo' better than TERMIO so we use it if it's | |
| 36 there. Since TERMIO is backward-compatibility stuff if both it | |
| 37 and TERMIOS exist, it's more likely to be broken. */ | |
| 38 | |
| 39 #if defined (HAVE_TERMIOS) | |
| 40 | |
| 41 /***** (1) The TERMIOS way (POSIX style) *****/ | |
| 42 | |
| 43 # if defined (_AIX) && defined (_I386) | |
| 44 # include <termios.h> /* termios.h needs to be before termio.h */ | |
| 45 # include <termio.h> | |
| 46 # else | |
| 47 # if !defined (NO_TERMIO) | |
| 48 # include <termio.h> | |
| 49 # endif | |
| 50 # include <termios.h> | |
| 51 # endif /* _AIX && _I386 */ | |
| 52 # ifndef INCLUDED_FCNTL | |
| 53 # define INCLUDED_FCNTL | |
| 54 # include <fcntl.h> | |
| 55 # endif | |
| 56 | |
| 57 #elif defined (HAVE_TERMIO) | |
| 58 | |
| 59 /***** (2) The TERMIO way (system V style) *****/ | |
| 60 | |
| 61 # ifndef NO_TERMIO | |
| 62 # include <termio.h> | |
| 63 # endif /* not NO_TERMIO */ | |
| 64 # ifndef INCLUDED_FCNTL | |
| 65 # define INCLUDED_FCNTL | |
| 66 # include <fcntl.h> | |
| 67 # endif | |
| 68 | |
| 442 | 69 #elif defined (WIN32_NATIVE) |
| 428 | 70 |
| 442 | 71 /***** (3) The WIN32_NATIVE way *****/ |
| 428 | 72 |
| 73 /* Nothing doing */ | |
| 74 | |
| 75 #else | |
| 76 | |
| 77 /***** (4) The BSD way *****/ | |
| 78 | |
| 79 # ifdef linux /* XEmacs addition -- necessary? */ | |
| 80 # include <bsd/sgtty.h> | |
| 81 # else | |
| 82 # include <sgtty.h> | |
| 83 # endif | |
| 84 | |
| 85 | |
| 86 #endif /* HAVE_TERMIOS */ | |
| 87 | |
| 88 /* XEmacs: I don't think we need the following crap. */ | |
| 89 #ifdef __GNU_LIBRARY__ | |
| 90 #include <termios.h> | |
| 91 #endif | |
| 92 | |
| 93 /* Formerly there was a conditional that included sys/filio.h if | |
| 94 USG5_4 was defined, but this is already included in s/usg5-4.h */ | |
| 95 | |
| 96 /* Generally useful to include this file: */ | |
| 97 | |
|
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98 #if !defined (WIN32_NATIVE) |
| 428 | 99 # include <sys/ioctl.h> |
| 100 #endif | |
| 101 | |
| 102 | |
| 103 /* ----------------------------------------------------- */ | |
| 104 /* miscellaneous includes */ | |
| 105 /* ----------------------------------------------------- */ | |
| 106 | |
| 107 /* Include files for PTY's */ | |
| 108 | |
| 535 | 109 #if defined (HAVE_SYS_PTYIO_H) /* HP-UX */ |
| 428 | 110 #include <sys/ptyio.h> |
| 111 #endif | |
| 112 | |
| 535 | 113 #if defined (HAVE_PTY_H) |
| 114 #include <pty.h> | |
| 115 #elif defined (HAVE_SYS_PTY_H) | |
| 428 | 116 #include <sys/pty.h> |
| 117 #endif | |
| 118 | |
| 119 /* XEmacs: removed some random if defined (pfa) crap for FASYNC (SIGIO). | |
| 120 We've cleaned SIGIO up. */ | |
| 121 | |
| 122 | |
| 123 /* ----------------------------------------------------- */ | |
| 124 /* inhibiting particular features */ | |
| 125 /* ----------------------------------------------------- */ | |
| 126 | |
| 127 | |
|
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128 #if defined (BROKEN_TIOCGETC) |
| 428 | 129 #undef TIOCGETC /* Avoid confusing some conditionals that test this. */ |
| 130 #endif | |
| 131 | |
| 132 /* XEmacs: SIGIO is cleaned up so we remove the crap here that messes | |
| 133 with it (and FIONREAD and FASYNC, which are related). */ | |
| 134 | |
| 135 /* On TERMIOS systems, the tcmumbleattr calls take care of these | |
| 136 parameters, and it's a bad idea to use them (on AIX, it makes the | |
| 137 tty hang for a long time). */ | |
| 138 #if defined (TIOCGLTC) && !defined (HAVE_TERMIOS) | |
| 139 #define HAVE_LTCHARS | |
| 140 #endif | |
| 141 | |
| 142 #if defined (TIOCGETC) && !defined (HAVE_TERMIOS) | |
| 143 #define HAVE_TCHARS | |
| 144 #endif | |
| 145 | |
| 146 | |
| 147 /* ----------------------------------------------------- */ | |
| 148 /* disabling terminal functions */ | |
| 149 /* ----------------------------------------------------- */ | |
| 150 | |
| 151 /* Try to establish the correct character to disable terminal functions | |
| 152 in a system-independent manner. | |
| 153 We use the POSIX standard way to do this, and emulate on other systems. */ | |
| 154 | |
| 155 #ifndef _POSIX_VDISABLE | |
| 156 # if defined CDEL | |
| 157 # define _POSIX_VDISABLE CDEL | |
| 158 # else | |
| 159 # define _POSIX_VDISABLE 255 | |
| 160 # endif | |
| 161 #endif /* ! _POSIX_VDISABLE */ | |
| 162 | |
| 163 | |
| 164 /* ----------------------------------------------------- */ | |
| 165 /* Get the number of characters queued for output */ | |
| 166 /* ----------------------------------------------------- */ | |
| 167 | |
| 168 /* EMACS_OUTQSIZE(FD, int *SIZE) stores the number of characters | |
| 169 queued for output to the terminal FD in *SIZE, if FD is a tty. | |
| 170 Returns -1 if there was an error (i.e. FD is not a tty), 0 | |
| 171 otherwise. */ | |
| 172 #ifdef TIOCOUTQ | |
| 173 #define EMACS_OUTQSIZE(fd, size) ioctl (fd, TIOCOUTQ, size) | |
| 174 #endif | |
| 175 | |
| 176 #ifdef HAVE_TERMIO | |
| 177 #ifdef TCOUTQ | |
| 178 #undef EMACS_OUTQSIZE | |
| 179 #define EMACS_OUTQSIZE(fd, size) ioctl (fd, TCOUTQ, size) | |
| 180 #endif | |
| 181 #endif | |
| 182 | |
| 183 | |
| 184 /* -------------------------------------------------------------------- */ | |
| 185 /* Manipulate a terminal's current (foreground) process group */ | |
| 186 /* -------------------------------------------------------------------- */ | |
| 187 | |
| 442 | 188 /* EMACS_GET_TTY_PGRP(int FD, pid_t *PGID) sets *PGID to the terminal |
| 189 FD's current foreground process group. Return -1 if there is an error. | |
| 190 | |
| 191 EMACS_SET_TTY_PGRP(int FD, pid_t *PGID) sets the terminal FD's current | |
| 192 foreground process group to *PGID. Return -1 if there is an error. | |
| 428 | 193 |
| 442 | 194 We prefer using the ioctl (BSD) interface instead of its Posix |
| 195 replacement tgetpgrp/tcsetpgrp since that is documented as being | |
| 196 restricted to processes sharing the same controlling tty. */ | |
| 428 | 197 |
| 442 | 198 #if defined (TIOCGPGRP) |
| 428 | 199 |
| 442 | 200 #define EMACS_GET_TTY_PROCESS_GROUP(fd, pgid) ioctl (fd, TIOCGPGRP, pgid) |
| 201 #define EMACS_SET_TTY_PROCESS_GROUP(fd, pgid) ioctl (fd, TIOCSPGRP, pgid) | |
| 202 | |
| 203 #elif defined (HAVE_TCGETPGRP) | |
| 428 | 204 |
| 442 | 205 #define EMACS_GET_TTY_PROCESS_GROUP(fd, pgid) (*(pgid) = tcgetpgrp (fd)) |
| 206 #define EMACS_SET_TTY_PROCESS_GROUP(fd, pgid) tcsetpgrp (fd, *(pgid)) | |
| 428 | 207 |
| 442 | 208 #else |
| 428 | 209 |
| 442 | 210 /* Just ignore this for now and hope for the best */ |
| 211 #define EMACS_GET_TTY_PROCESS_GROUP(fd, pgid) 0 | |
| 212 #define EMACS_SET_TTY_PROCESS_GROUP(fd, pgif) 0 | |
| 428 | 213 |
| 214 #endif | |
| 215 | |
| 216 /* EMACS_GETPGRP (arg) returns the process group of the terminal. */ | |
| 217 | |
| 218 #ifdef GETPGRP_VOID | |
| 219 #define EMACS_GETPGRP(x) getpgrp() | |
| 220 #else | |
| 221 #define EMACS_GETPGRP(x) getpgrp(x) | |
| 222 #endif /* GETPGRP_VOID */ | |
| 223 | |
| 224 /* XEmacs backward-compatibility. Is 0 always a reasonable argument? */ | |
| 225 #define EMACS_GET_PROCESS_GROUP() EMACS_GETPGRP (0) | |
| 226 | |
| 227 /* XEmacs addition? */ | |
| 228 | |
| 229 /* EMACS_SEPARATE_PROCESS_GROUP () creates a separate process group for the | |
| 230 running process. */ | |
| 231 | |
| 232 /* EMACS_SET_PROCESS_GROUP () sets our process group as specified. */ | |
| 233 | |
| 234 /* POSIX calls for setpgid(), so we use it if it's available. | |
| 235 Otherwise use setpgrp(), in USG or BSD flavor. Note that | |
| 236 on newer systems, setpgrp() has unwanted effects (e.g. | |
| 237 creating a new session), so we want to avoid its use | |
| 238 if possible. | |
| 239 | |
| 240 NOTE: On some older systems, we should consider using setpgrp2() | |
| 241 if it exists. This is sufficiently rare, though, that there | |
| 242 seems no point in autodetecting it. Currently dgux.h is the | |
| 243 only place where this has to be munged. */ | |
| 244 | |
| 245 #if defined (HAVE_SETPGID) | |
| 246 # define EMACS_SEPARATE_PROCESS_GROUP() setpgid (0, 0) | |
| 247 # define EMACS_SET_PROCESS_GROUP(pg) setpgid (0, pg) | |
| 248 #elif defined (USG) | |
| 249 # define EMACS_SEPARATE_PROCESS_GROUP() setpgrp () | |
| 250 /* old (pre-SVR4) USG's don't provide any way to do this. | |
| 251 No big loss -- it just means that ^Z won't work right | |
| 252 if we're run from sh. */ | |
| 253 # define EMACS_SET_PROCESS_GROUP(pg) | |
| 771 | 254 #elif defined (WIN32_NATIVE) |
| 432 | 255 # define EMACS_SEPARATE_PROCESS_GROUP() |
| 428 | 256 #else |
| 257 /* Under NeXTstep, a process group of 0 is not the same as specifying | |
| 258 your own process ID, so we go ahead and specify it explicitly. */ | |
| 259 # define EMACS_SEPARATE_PROCESS_GROUP() setpgrp (0, getpid ()) | |
| 260 # define EMACS_SET_PROCESS_GROUP(pg) setpgrp (0, pg) | |
| 261 #endif | |
| 262 | |
| 263 | |
| 264 /* --------------------------------------------------------- */ | |
| 265 /* Manipulate a TTY's input/output processing parameters */ | |
| 266 /* --------------------------------------------------------- */ | |
| 267 | |
| 268 /* struct emacs_tty is a structure used to hold the current tty | |
| 269 parameters. If the terminal has several structures describing its | |
| 270 state, for example a struct tchars, a struct sgttyb, a struct | |
| 271 tchars, a struct ltchars, and a struct pagechars, struct | |
| 272 emacs_tty should contain an element for each parameter struct | |
| 273 that Emacs may change. | |
| 274 | |
| 430 | 275 emacs_get_tty (int FD, struct emacs_tty *P) stores the parameters |
| 428 | 276 of the tty on FD in *P. Return zero if all's well, or -1 if we ran |
| 277 into an error we couldn't deal with. | |
| 278 | |
| 430 | 279 emacs_set_tty (int FD, struct emacs_tty *P, int flushp) |
| 428 | 280 sets the parameters of the tty on FD according to the contents of |
| 281 *P. If flushp is non-zero, we discard queued input to be | |
| 282 written before making the change. | |
| 283 Return 0 if all went well, and -1 if anything failed. | |
| 284 | |
| 285 EMACS_TTY_TABS_OK (struct emacs_tty *P) is false iff the kernel | |
| 286 expands tabs to spaces upon output; in that case, there is no | |
| 287 advantage to using tabs over spaces. */ | |
| 288 | |
| 289 | |
| 290 /* For each tty parameter structure that Emacs might want to save and restore, | |
| 291 - include an element for it in this structure, and | |
| 292 - extend the emacs_{get,set}_tty functions in sysdep.c to deal with the | |
| 293 new members. */ | |
| 294 | |
| 295 struct emacs_tty { | |
| 296 | |
| 297 /* There is always one of the following elements, so there is no need | |
| 298 for dummy get and set definitions. */ | |
| 299 #ifdef HAVE_TCATTR | |
| 300 struct termios main; | |
| 301 #else /* !HAVE_TCATTR */ | |
| 302 #ifdef HAVE_TERMIO | |
| 303 struct termio main; | |
| 304 #else /* !HAVE_TERMIO */ | |
| 442 | 305 #ifdef WIN32_NATIVE |
| 428 | 306 int main; |
| 442 | 307 #else /* not WIN32_NATIVE */ |
| 428 | 308 struct sgttyb main; |
| 442 | 309 #endif /* not WIN32_NATIVE */ |
| 428 | 310 #endif /* !HAVE_TERMIO */ |
| 311 #endif /* !HAVE_TCATTR */ | |
| 312 | |
| 313 /* If we have TERMIOS, we don't need to do this - they're taken care of | |
| 314 by the tc*attr calls. */ | |
| 315 #ifndef HAVE_TERMIOS | |
| 316 #ifdef HAVE_LTCHARS | |
| 317 struct ltchars ltchars; | |
| 318 #endif /* HAVE_LTCHARS */ | |
| 319 | |
| 320 #ifdef HAVE_TCHARS | |
| 321 struct tchars tchars; | |
| 322 int lmode; | |
| 323 #endif /* HAVE_TCHARS */ | |
| 324 #endif /* HAVE_TERMIOS */ | |
| 325 }; | |
| 326 | |
| 430 | 327 int emacs_get_tty (int fd, struct emacs_tty *settings); |
| 328 int emacs_set_tty (int fd, struct emacs_tty *settings, int flushp); | |
| 428 | 329 |
| 330 | |
| 331 /* --------------------------------------------------------- */ | |
| 332 /* Define EMACS_TTY_TABS_OK */ | |
| 333 /* --------------------------------------------------------- */ | |
| 334 | |
| 513 | 335 #if defined (TABDLY) && defined (TAB3) |
| 336 # define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & TABDLY) != TAB3) | |
| 337 #elif defined (OXTABS) | |
| 338 # define EMACS_TTY_TABS_OK(p) (((p)->main.c_oflag & OXTABS) != OXTABS) | |
| 428 | 339 #else |
| 513 | 340 # define EMACS_TTY_TABS_OK(p) 1 |
| 341 #endif | |
| 428 | 342 |
| 440 | 343 #endif /* INCLUDED_systty_h_ */ |