Commit | Line | Data |
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86a5659e | 1 | /* Interfaces to system-dependent kernel and library entries. |
275464e7 | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001, |
114f9c96 | 3 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
8cabe764 | 4 | Free Software Foundation, Inc. |
86a5659e JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
86a5659e | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
86a5659e JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
86a5659e | 20 | |
4838e624 PJ |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> | |
23 | #endif | |
86a5659e | 24 | |
2c55aacf | 25 | #include <ctype.h> |
86a5659e | 26 | #include <signal.h> |
5890e9f7 | 27 | #include <stdio.h> |
86a5659e | 28 | #include <setjmp.h> |
06e111a6 DN |
29 | #ifdef HAVE_PWD_H |
30 | #include <pwd.h> | |
31 | #include <grp.h> | |
32 | #endif /* HAVE_PWD_H */ | |
33 | #ifdef HAVE_LIMITS_H | |
34 | #include <limits.h> | |
35 | #endif /* HAVE_LIMITS_H */ | |
d3eb3bfa DL |
36 | #ifdef HAVE_UNISTD_H |
37 | #include <unistd.h> | |
38 | #endif | |
53934c98 | 39 | |
86a5659e | 40 | #include "lisp.h" |
8296bbf8 DL |
41 | /* Including stdlib.h isn't necessarily enough to get srandom |
42 | declared, e.g. without __USE_XOPEN_EXTENDED with glibc 2. */ | |
8296bbf8 | 43 | |
4d395425 EZ |
44 | /* The w32 build defines select stuff in w32.h, which is included by |
45 | sys/select.h (included below). */ | |
46 | #ifndef WINDOWSNT | |
819b8f00 | 47 | #include "sysselect.h" |
4d395425 | 48 | #endif |
819b8f00 | 49 | |
9ac0d9e0 | 50 | #include "blockinput.h" |
86a5659e | 51 | |
fe03522b | 52 | #ifdef WINDOWSNT |
e15b6288 JR |
53 | #define read sys_read |
54 | #define write sys_write | |
fe03522b | 55 | #include <windows.h> |
e36ec798 AI |
56 | #ifndef NULL |
57 | #define NULL 0 | |
58 | #endif | |
fe03522b RS |
59 | #endif /* not WINDOWSNT */ |
60 | ||
86a5659e JB |
61 | #include <sys/types.h> |
62 | #include <sys/stat.h> | |
63 | #include <errno.h> | |
64 | ||
f95c3f91 | 65 | #ifdef HAVE_SETPGID |
58eb6cf0 | 66 | #if !defined (USG) |
c8875a65 | 67 | #undef setpgrp |
f95c3f91 GM |
68 | #define setpgrp setpgid |
69 | #endif | |
2b7e8799 | 70 | #endif |
f95c3f91 | 71 | |
b05af5d3 PE |
72 | /* Get SI_SRPC_DOMAIN, if it is available. */ |
73 | #ifdef HAVE_SYS_SYSTEMINFO_H | |
74 | #include <sys/systeminfo.h> | |
75 | #endif | |
76 | ||
207bdbdb RS |
77 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ |
78 | #include <dos.h> | |
79 | #include "dosfns.h" | |
80 | #include "msdos.h" | |
81 | #include <sys/param.h> | |
15614e61 | 82 | |
15614e61 RS |
83 | extern int etext; |
84 | extern unsigned start __asm__ ("start"); | |
85 | #endif | |
207bdbdb | 86 | |
bb4bc8e2 | 87 | #include <sys/file.h> |
7ce1c4de | 88 | |
612221ab | 89 | #ifdef HAVE_FCNTL_H |
bb4bc8e2 RM |
90 | #include <fcntl.h> |
91 | #endif | |
86a5659e | 92 | |
207bdbdb | 93 | #ifndef MSDOS |
86a5659e | 94 | #include <sys/ioctl.h> |
207bdbdb | 95 | #endif |
2a633456 | 96 | |
e04a4e0d | 97 | #include "systty.h" |
94c8642a | 98 | #include "syswait.h" |
86a5659e | 99 | |
e39a993c | 100 | #if defined (USG) |
86a5659e | 101 | #include <sys/utsname.h> |
86a5659e | 102 | #include <memory.h> |
e39a993c | 103 | #endif /* USG */ |
86a5659e | 104 | |
86a5659e JB |
105 | extern int quit_char; |
106 | ||
e36ec798 | 107 | #include "keyboard.h" |
0137dbf7 | 108 | #include "frame.h" |
86a5659e JB |
109 | #include "window.h" |
110 | #include "termhooks.h" | |
111 | #include "termchar.h" | |
112 | #include "termopts.h" | |
113 | #include "dispextern.h" | |
114 | #include "process.h" | |
0a125897 | 115 | #include "cm.h" /* for reset_sys_modes */ |
86a5659e | 116 | |
1eb8fd91 | 117 | /* For serial_configure and serial_open. */ |
d888760c GM |
118 | extern Lisp_Object QCport, QCspeed, QCprocess; |
119 | extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
120 | extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
121 | ||
fe03522b RS |
122 | #ifdef WINDOWSNT |
123 | #include <direct.h> | |
124 | /* In process.h which conflicts with the local copy. */ | |
125 | #define _P_WAIT 0 | |
43db14bb JB |
126 | int _cdecl _spawnlp (int, const char *, const char *, ...); |
127 | int _cdecl _getpid (void); | |
b6682dd9 | 128 | extern char *getwd (char *); |
fe03522b RS |
129 | #endif |
130 | ||
91bac16a JB |
131 | #include "syssignal.h" |
132 | #include "systime.h" | |
d79998bc KH |
133 | #ifdef HAVE_UTIME_H |
134 | #include <utime.h> | |
135 | #endif | |
136 | ||
137 | #ifndef HAVE_UTIMES | |
138 | #ifndef HAVE_STRUCT_UTIMBUF | |
139 | /* We want to use utime rather than utimes, but we couldn't find the | |
140 | structure declaration. We'll use the traditional one. */ | |
141 | struct utimbuf { | |
142 | long actime; | |
143 | long modtime; | |
144 | }; | |
145 | #endif | |
146 | #endif | |
86a5659e | 147 | |
a00d5589 RS |
148 | /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */ |
149 | #ifndef LPASS8 | |
150 | #define LPASS8 0 | |
151 | #endif | |
152 | ||
91433552 | 153 | static const int baud_convert[] = |
86a5659e JB |
154 | { |
155 | 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200, | |
156 | 1800, 2400, 4800, 9600, 19200, 38400 | |
157 | }; | |
86a5659e | 158 | |
f0d21750 GM |
159 | #ifdef HAVE_SPEED_T |
160 | #include <termios.h> | |
f0d21750 | 161 | #else |
ba5971b3 | 162 | #if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T) |
ba5971b3 | 163 | #else |
8a2a6032 | 164 | #if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX) |
515b04d0 | 165 | #include <termios.h> |
f2361c60 | 166 | #endif |
ba5971b3 | 167 | #endif |
f0d21750 | 168 | #endif |
86a5659e | 169 | |
5bdd7bdd GM |
170 | int emacs_ospeed; |
171 | ||
f57e2426 | 172 | void croak (char *) NO_RETURN; |
b9c4113e | 173 | |
89723395 GM |
174 | /* Temporary used by `sigblock' when defined in terms of signprocmask. */ |
175 | ||
176 | SIGMASKTYPE sigprocmask_set; | |
177 | ||
f78f1a83 | 178 | |
3480d92b | 179 | #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME) |
f78f1a83 | 180 | |
b6682dd9 | 181 | /* Return the current working directory. Returns NULL on errors. |
f78f1a83 EZ |
182 | Any other returned value must be freed with free. This is used |
183 | only when get_current_dir_name is not defined on the system. */ | |
184 | char* | |
185 | get_current_dir_name () | |
186 | { | |
187 | char *buf; | |
188 | char *pwd; | |
189 | struct stat dotstat, pwdstat; | |
190 | /* If PWD is accurate, use it instead of calling getwd. PWD is | |
191 | sometimes a nicer name, and using it may avoid a fatal error if a | |
192 | parent directory is searchable but not readable. */ | |
193 | if ((pwd = getenv ("PWD")) != 0 | |
194 | && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1]))) | |
195 | && stat (pwd, &pwdstat) == 0 | |
196 | && stat (".", &dotstat) == 0 | |
197 | && dotstat.st_ino == pwdstat.st_ino | |
198 | && dotstat.st_dev == pwdstat.st_dev | |
199 | #ifdef MAXPATHLEN | |
200 | && strlen (pwd) < MAXPATHLEN | |
201 | #endif | |
202 | ) | |
203 | { | |
204 | buf = (char *) malloc (strlen (pwd) + 1); | |
205 | if (!buf) | |
206 | return NULL; | |
207 | strcpy (buf, pwd); | |
208 | } | |
209 | #ifdef HAVE_GETCWD | |
210 | else | |
211 | { | |
212 | size_t buf_size = 1024; | |
b6682dd9 | 213 | buf = (char *) malloc (buf_size); |
f78f1a83 EZ |
214 | if (!buf) |
215 | return NULL; | |
216 | for (;;) | |
217 | { | |
218 | if (getcwd (buf, buf_size) == buf) | |
219 | break; | |
220 | if (errno != ERANGE) | |
221 | { | |
222 | int tmp_errno = errno; | |
223 | free (buf); | |
224 | errno = tmp_errno; | |
225 | return NULL; | |
226 | } | |
227 | buf_size *= 2; | |
228 | buf = (char *) realloc (buf, buf_size); | |
229 | if (!buf) | |
230 | return NULL; | |
231 | } | |
232 | } | |
233 | #else | |
234 | else | |
235 | { | |
236 | /* We need MAXPATHLEN here. */ | |
237 | buf = (char *) malloc (MAXPATHLEN + 1); | |
238 | if (!buf) | |
239 | return NULL; | |
240 | if (getwd (buf) == NULL) | |
241 | { | |
242 | int tmp_errno = errno; | |
243 | free (buf); | |
244 | errno = tmp_errno; | |
245 | return NULL; | |
246 | } | |
247 | } | |
248 | #endif | |
249 | return buf; | |
250 | } | |
251 | #endif | |
252 | ||
64e971c3 | 253 | \f |
9628b887 | 254 | /* Discard pending input on all input descriptors. */ |
91bac16a | 255 | |
08633194 | 256 | void |
971de7fb | 257 | discard_tty_input (void) |
86a5659e | 258 | { |
fe03522b | 259 | #ifndef WINDOWSNT |
91bac16a | 260 | struct emacs_tty buf; |
86a5659e JB |
261 | |
262 | if (noninteractive) | |
263 | return; | |
264 | ||
fe03522b | 265 | #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ |
207bdbdb | 266 | while (dos_keyread () != -1) |
fe03522b | 267 | ; |
207bdbdb | 268 | #else /* not MSDOS */ |
9628b887 | 269 | { |
28d7d09f | 270 | struct tty_display_info *tty; |
9628b887 KL |
271 | for (tty = tty_list; tty; tty = tty->next) |
272 | { | |
0b0d3e0b KL |
273 | if (tty->input) /* Is the device suspended? */ |
274 | { | |
275 | EMACS_GET_TTY (fileno (tty->input), &buf); | |
276 | EMACS_SET_TTY (fileno (tty->input), &buf, 0); | |
277 | } | |
9628b887 KL |
278 | } |
279 | } | |
207bdbdb | 280 | #endif /* not MSDOS */ |
fe03522b | 281 | #endif /* not WINDOWSNT */ |
86a5659e JB |
282 | } |
283 | ||
16c290d8 | 284 | \f |
86a5659e JB |
285 | #ifdef SIGTSTP |
286 | ||
64e971c3 | 287 | /* Arrange for character C to be read as the next input from |
16c290d8 KL |
288 | the terminal. |
289 | XXX What if we have multiple ttys? | |
290 | */ | |
64e971c3 | 291 | |
dfcf069d | 292 | void |
0c2338d8 | 293 | stuff_char (char c) |
86a5659e | 294 | { |
428a555e | 295 | if (! FRAME_TERMCAP_P (SELECTED_FRAME ())) |
23dab951 RS |
296 | return; |
297 | ||
86a5659e JB |
298 | /* Should perhaps error if in batch mode */ |
299 | #ifdef TIOCSTI | |
0b0d3e0b | 300 | ioctl (fileno (CURTTY()->input), TIOCSTI, &c); |
86a5659e | 301 | #else /* no TIOCSTI */ |
71f06467 | 302 | error ("Cannot stuff terminal input characters in this version of Unix"); |
86a5659e JB |
303 | #endif /* no TIOCSTI */ |
304 | } | |
305 | ||
306 | #endif /* SIGTSTP */ | |
64e971c3 | 307 | \f |
08633194 | 308 | void |
16c290d8 | 309 | init_baud_rate (int fd) |
86a5659e | 310 | { |
86a5659e | 311 | if (noninteractive) |
5bdd7bdd | 312 | emacs_ospeed = 0; |
86a5659e JB |
313 | else |
314 | { | |
fe03522b | 315 | #ifdef DOS_NT |
5bdd7bdd | 316 | emacs_ospeed = 15; |
fe03522b | 317 | #else /* not DOS_NT */ |
e04a4e0d JB |
318 | #ifdef HAVE_TERMIOS |
319 | struct termios sg; | |
91bac16a | 320 | |
71f06467 | 321 | sg.c_cflag = B9600; |
16c290d8 | 322 | tcgetattr (fd, &sg); |
5bdd7bdd | 323 | emacs_ospeed = cfgetospeed (&sg); |
7c2fb837 | 324 | #else /* not TERMIOS */ |
e04a4e0d JB |
325 | #ifdef HAVE_TERMIO |
326 | struct termio sg; | |
91bac16a | 327 | |
71f06467 | 328 | sg.c_cflag = B9600; |
e04a4e0d | 329 | #ifdef HAVE_TCATTR |
16c290d8 | 330 | tcgetattr (fd, &sg); |
e04a4e0d | 331 | #else |
16c290d8 | 332 | ioctl (fd, TCGETA, &sg); |
e04a4e0d | 333 | #endif |
5bdd7bdd | 334 | emacs_ospeed = sg.c_cflag & CBAUD; |
7c2fb837 | 335 | #else /* neither TERMIOS nor TERMIO */ |
91bac16a | 336 | struct sgttyb sg; |
177c0ea7 | 337 | |
91bac16a | 338 | sg.sg_ospeed = B9600; |
16c290d8 | 339 | if (ioctl (fd, TIOCGETP, &sg) < 0) |
d7272cff | 340 | abort (); |
5bdd7bdd | 341 | emacs_ospeed = sg.sg_ospeed; |
91bac16a | 342 | #endif /* not HAVE_TERMIO */ |
e04a4e0d | 343 | #endif /* not HAVE_TERMIOS */ |
fe03522b | 344 | #endif /* not DOS_NT */ |
86a5659e | 345 | } |
177c0ea7 | 346 | |
5bdd7bdd GM |
347 | baud_rate = (emacs_ospeed < sizeof baud_convert / sizeof baud_convert[0] |
348 | ? baud_convert[emacs_ospeed] : 9600); | |
86a5659e JB |
349 | if (baud_rate == 0) |
350 | baud_rate = 1200; | |
351 | } | |
352 | ||
16c290d8 | 353 | \f |
86a5659e | 354 | /*ARGSUSED*/ |
dfcf069d | 355 | void |
971de7fb | 356 | set_exclusive_use (int fd) |
86a5659e JB |
357 | { |
358 | #ifdef FIOCLEX | |
359 | ioctl (fd, FIOCLEX, 0); | |
360 | #endif | |
361 | /* Ok to do nothing if this feature does not exist */ | |
362 | } | |
64e971c3 | 363 | \f |
86a5659e JB |
364 | #ifndef subprocesses |
365 | ||
366 | wait_without_blocking () | |
367 | { | |
86a5659e | 368 | croak ("wait_without_blocking"); |
86a5659e JB |
369 | synch_process_alive = 0; |
370 | } | |
371 | ||
372 | #endif /* not subprocesses */ | |
373 | ||
374 | int wait_debugging; /* Set nonzero to make following function work under dbx | |
fe03522b | 375 | (at least for bsd). */ |
86a5659e JB |
376 | |
377 | SIGTYPE | |
971de7fb | 378 | wait_for_termination_signal (void) |
86a5659e JB |
379 | {} |
380 | ||
381 | /* Wait for subprocess with process id `pid' to terminate and | |
382 | make sure it will get eliminated (not remain forever as a zombie) */ | |
383 | ||
08633194 | 384 | void |
971de7fb | 385 | wait_for_termination (int pid) |
86a5659e JB |
386 | { |
387 | while (1) | |
388 | { | |
389 | #ifdef subprocesses | |
f2a77c3a | 390 | #if defined (BSD_SYSTEM) || defined (HPUX) |
4c8975ad RS |
391 | /* Note that kill returns -1 even if the process is just a zombie now. |
392 | But inevitably a SIGCHLD interrupt should be generated | |
393 | and child_sig will do wait3 and make the process go away. */ | |
394 | /* There is some indication that there is a bug involved with | |
395 | termination of subprocesses, perhaps involving a kernel bug too, | |
396 | but no idea what it is. Just as a hunch we signal SIGCHLD to see | |
397 | if that causes the problem to go away or get worse. */ | |
398 | sigsetmask (sigmask (SIGCHLD)); | |
399 | if (0 > kill (pid, 0)) | |
fe03522b | 400 | { |
4c8975ad RS |
401 | sigsetmask (SIGEMPTYMASK); |
402 | kill (getpid (), SIGCHLD); | |
403 | break; | |
404 | } | |
405 | if (wait_debugging) | |
406 | sleep (1); | |
407 | else | |
408 | sigpause (SIGEMPTYMASK); | |
2a633456 | 409 | #else /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
d6dae14b EZ |
410 | #ifdef WINDOWSNT |
411 | wait (0); | |
412 | break; | |
413 | #else /* not WINDOWSNT */ | |
9ab714c7 | 414 | sigblock (sigmask (SIGCHLD)); |
59957f85 GM |
415 | errno = 0; |
416 | if (kill (pid, 0) == -1 && errno == ESRCH) | |
9ab714c7 RS |
417 | { |
418 | sigunblock (sigmask (SIGCHLD)); | |
419 | break; | |
420 | } | |
ac3ac859 | 421 | |
0fdcb867 | 422 | sigsuspend (&empty_mask); |
d6dae14b | 423 | #endif /* not WINDOWSNT */ |
2a633456 | 424 | #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
86a5659e | 425 | #else /* not subprocesses */ |
15614e61 | 426 | break; |
86a5659e JB |
427 | #endif /* not subprocesses */ |
428 | } | |
429 | } | |
430 | ||
431 | #ifdef subprocesses | |
432 | ||
433 | /* | |
434 | * flush any pending output | |
435 | * (may flush input as well; it does not matter the way we use it) | |
436 | */ | |
177c0ea7 | 437 | |
08633194 | 438 | void |
971de7fb | 439 | flush_pending_output (int channel) |
86a5659e JB |
440 | { |
441 | #ifdef HAVE_TERMIOS | |
442 | /* If we try this, we get hit with SIGTTIN, because | |
443 | the child's tty belongs to the child's pgrp. */ | |
444 | #else | |
445 | #ifdef TCFLSH | |
446 | ioctl (channel, TCFLSH, 1); | |
447 | #else | |
448 | #ifdef TIOCFLUSH | |
449 | int zero = 0; | |
450 | /* 3rd arg should be ignored | |
451 | but some 4.2 kernels actually want the address of an int | |
452 | and nonzero means something different. */ | |
453 | ioctl (channel, TIOCFLUSH, &zero); | |
454 | #endif | |
455 | #endif | |
456 | #endif | |
457 | } | |
64e971c3 | 458 | \f |
86a5659e JB |
459 | /* Set up the terminal at the other end of a pseudo-terminal that |
460 | we will be controlling an inferior through. | |
461 | It should not echo or do line-editing, since that is done | |
462 | in Emacs. No padding needed for insertion into an Emacs buffer. */ | |
463 | ||
08633194 | 464 | void |
971de7fb | 465 | child_setup_tty (int out) |
86a5659e | 466 | { |
fe03522b | 467 | #ifndef DOS_NT |
91bac16a JB |
468 | struct emacs_tty s; |
469 | ||
470 | EMACS_GET_TTY (out, &s); | |
86a5659e | 471 | |
31be8d24 | 472 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
91bac16a JB |
473 | s.main.c_oflag |= OPOST; /* Enable output postprocessing */ |
474 | s.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL on output */ | |
9d4e5eea | 475 | #ifdef NLDLY |
07cfc4e7 GM |
476 | /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html |
477 | Some versions of GNU Hurd do not have FFDLY? */ | |
478 | #ifdef FFDLY | |
91bac16a JB |
479 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY); |
480 | /* No output delays */ | |
07cfc4e7 GM |
481 | #else |
482 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY); | |
483 | /* No output delays */ | |
484 | #endif | |
9d4e5eea | 485 | #endif |
91bac16a JB |
486 | s.main.c_lflag &= ~ECHO; /* Disable echo */ |
487 | s.main.c_lflag |= ISIG; /* Enable signals */ | |
9d4e5eea RS |
488 | #ifdef IUCLC |
489 | s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */ | |
490 | #endif | |
f7097b2a RS |
491 | #ifdef ISTRIP |
492 | s.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ | |
493 | #endif | |
23e4c8be | 494 | #ifdef OLCUC |
9d4e5eea RS |
495 | s.main.c_oflag &= ~OLCUC; /* Disable upcasing on output. */ |
496 | #endif | |
f7097b2a | 497 | s.main.c_oflag &= ~TAB3; /* Disable tab expansion */ |
1bf96fb5 | 498 | s.main.c_cflag = (s.main.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */ |
441f6399 RS |
499 | s.main.c_cc[VERASE] = CDISABLE; /* disable erase processing */ |
500 | s.main.c_cc[VKILL] = CDISABLE; /* disable kill processing */ | |
91bac16a | 501 | |
86a5659e | 502 | #ifdef HPUX |
91bac16a | 503 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e | 504 | #endif /* HPUX */ |
91bac16a | 505 | |
dfe598b5 RS |
506 | #ifdef SIGNALS_VIA_CHARACTERS |
507 | /* the QUIT and INTR character are used in process_send_signal | |
508 | so set them here to something useful. */ | |
fa51fa32 | 509 | if (s.main.c_cc[VQUIT] == CDISABLE) |
dfe598b5 | 510 | s.main.c_cc[VQUIT] = '\\'&037; /* Control-\ */ |
fa51fa32 | 511 | if (s.main.c_cc[VINTR] == CDISABLE) |
dfe598b5 RS |
512 | s.main.c_cc[VINTR] = 'C'&037; /* Control-C */ |
513 | #endif /* not SIGNALS_VIA_CHARACTERS */ | |
514 | ||
86a5659e | 515 | #ifdef AIX |
86a5659e JB |
516 | /* Also, PTY overloads NUL and BREAK. |
517 | don't ignore break, but don't signal either, so it looks like NUL. */ | |
91bac16a JB |
518 | s.main.c_iflag &= ~IGNBRK; |
519 | s.main.c_iflag &= ~BRKINT; | |
dfe598b5 RS |
520 | /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here |
521 | unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional | |
522 | would force it to 0377. That looks like duplicated code. */ | |
91bac16a | 523 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e JB |
524 | #endif /* AIX */ |
525 | ||
2b0a91e7 SM |
526 | /* We used to enable ICANON (and set VEOF to 04), but this leads to |
527 | problems where process.c wants to send EOFs every once in a while | |
528 | to force the output, which leads to weird effects when the | |
529 | subprocess has disabled ICANON and ends up seeing those spurious | |
530 | extra EOFs. So we don't send EOFs any more in | |
531 | process.c:send_process, and instead we disable ICANON by default, | |
532 | so if a subsprocess sets up ICANON, it's his problem (or the Elisp | |
533 | package that talks to it) to deal with lines that are too long. */ | |
534 | s.main.c_lflag &= ~ICANON; /* Disable line editing and eof processing */ | |
535 | s.main.c_cc[VMIN] = 1; | |
536 | s.main.c_cc[VTIME] = 0; | |
537 | ||
06ac62b4 SM |
538 | #else /* not HAVE_TERMIO */ |
539 | ||
540 | s.main.sg_flags &= ~(ECHO | CRMOD | ANYP | ALLDELAY | RAW | LCASE | |
541 | | CBREAK | TANDEM); | |
542 | s.main.sg_flags |= LPASS8; | |
543 | s.main.sg_erase = 0377; | |
544 | s.main.sg_kill = 0377; | |
545 | s.lmode = LLITOUT | s.lmode; /* Don't strip 8th bit */ | |
546 | ||
86a5659e JB |
547 | #endif /* not HAVE_TERMIO */ |
548 | ||
91bac16a | 549 | EMACS_SET_TTY (out, &s, 0); |
86a5659e | 550 | |
fe03522b | 551 | #endif /* not DOS_NT */ |
86a5659e | 552 | } |
86a5659e JB |
553 | |
554 | #endif /* subprocesses */ | |
64e971c3 | 555 | \f |
86a5659e JB |
556 | /* Record a signal code and the handler for it. */ |
557 | struct save_signal | |
558 | { | |
559 | int code; | |
f57e2426 | 560 | SIGTYPE (*handler) (int); |
86a5659e JB |
561 | }; |
562 | ||
f57e2426 J |
563 | static void save_signal_handlers (struct save_signal *); |
564 | static void restore_signal_handlers (struct save_signal *); | |
35a05cca | 565 | |
86a5659e JB |
566 | /* Suspend the Emacs process; give terminal to its superior. */ |
567 | ||
08633194 | 568 | void |
971de7fb | 569 | sys_suspend (void) |
86a5659e | 570 | { |
c4ea52a6 | 571 | #if defined (SIGTSTP) && !defined (MSDOS) |
86a5659e | 572 | |
5a570e37 | 573 | { |
e89a2cd5 | 574 | int pgrp = EMACS_GETPGRP (0); |
5a570e37 JB |
575 | EMACS_KILLPG (pgrp, SIGTSTP); |
576 | } | |
86a5659e JB |
577 | |
578 | #else /* No SIGTSTP */ | |
86a5659e JB |
579 | /* On a system where suspending is not implemented, |
580 | instead fork a subshell and let it talk directly to the terminal | |
581 | while we wait. */ | |
a0932daa KH |
582 | sys_subshell (); |
583 | ||
a0932daa | 584 | #endif /* no SIGTSTP */ |
a0932daa KH |
585 | } |
586 | ||
587 | /* Fork a subshell. */ | |
588 | ||
08633194 | 589 | void |
971de7fb | 590 | sys_subshell (void) |
a0932daa | 591 | { |
ad00c243 | 592 | #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
a0932daa KH |
593 | int st; |
594 | char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */ | |
595 | #endif | |
efa04277 | 596 | int pid; |
86a5659e | 597 | struct save_signal saved_handlers[5]; |
efa04277 RS |
598 | Lisp_Object dir; |
599 | unsigned char *str = 0; | |
600 | int len; | |
86a5659e JB |
601 | |
602 | saved_handlers[0].code = SIGINT; | |
603 | saved_handlers[1].code = SIGQUIT; | |
604 | saved_handlers[2].code = SIGTERM; | |
605 | #ifdef SIGIO | |
606 | saved_handlers[3].code = SIGIO; | |
607 | saved_handlers[4].code = 0; | |
608 | #else | |
609 | saved_handlers[3].code = 0; | |
610 | #endif | |
611 | ||
efa04277 RS |
612 | /* Mentioning current_buffer->buffer would mean including buffer.h, |
613 | which somehow wedges the hp compiler. So instead... */ | |
614 | ||
615 | dir = intern ("default-directory"); | |
0e7e7a58 | 616 | if (NILP (Fboundp (dir))) |
efa04277 RS |
617 | goto xyzzy; |
618 | dir = Fsymbol_value (dir); | |
914e81a2 | 619 | if (!STRINGP (dir)) |
efa04277 RS |
620 | goto xyzzy; |
621 | ||
622 | dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil); | |
d5db4077 KR |
623 | str = (unsigned char *) alloca (SCHARS (dir) + 2); |
624 | len = SCHARS (dir); | |
625 | bcopy (SDATA (dir), str, len); | |
efa04277 RS |
626 | if (str[len - 1] != '/') str[len++] = '/'; |
627 | str[len] = 0; | |
628 | xyzzy: | |
629 | ||
ad00c243 | 630 | #ifdef DOS_NT |
7964ba9e | 631 | pid = 0; |
718ca3cf RS |
632 | save_signal_handlers (saved_handlers); |
633 | synch_process_alive = 1; | |
177c0ea7 | 634 | #else |
efa04277 | 635 | pid = vfork (); |
86a5659e JB |
636 | if (pid == -1) |
637 | error ("Can't spawn subshell"); | |
7964ba9e RS |
638 | #endif |
639 | ||
86a5659e JB |
640 | if (pid == 0) |
641 | { | |
7964ba9e | 642 | char *sh = 0; |
86a5659e | 643 | |
ad00c243 | 644 | #ifdef DOS_NT /* MW, Aug 1993 */ |
207bdbdb | 645 | getwd (oldwd); |
7964ba9e RS |
646 | if (sh == 0) |
647 | sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ | |
207bdbdb | 648 | #endif |
7964ba9e RS |
649 | if (sh == 0) |
650 | sh = (char *) egetenv ("SHELL"); | |
86a5659e JB |
651 | if (sh == 0) |
652 | sh = "sh"; | |
207bdbdb | 653 | |
86a5659e | 654 | /* Use our buffer's default directory for the subshell. */ |
efa04277 | 655 | if (str) |
074c438c | 656 | chdir ((char *) str); |
efa04277 | 657 | |
86a5659e JB |
658 | #ifdef subprocesses |
659 | close_process_descs (); /* Close Emacs's pipes/ptys */ | |
660 | #endif | |
1593c2fe | 661 | |
6f8b4d01 | 662 | #ifdef SET_EMACS_PRIORITY |
1593c2fe | 663 | { |
31ade731 | 664 | extern EMACS_INT emacs_priority; |
1593c2fe | 665 | |
6f8b4d01 | 666 | if (emacs_priority < 0) |
1593c2fe JB |
667 | nice (-emacs_priority); |
668 | } | |
669 | #endif | |
670 | ||
fe03522b | 671 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
c0917202 | 672 | { |
48178f9a EZ |
673 | char *epwd = getenv ("PWD"); |
674 | char old_pwd[MAXPATHLEN+1+4]; | |
c0917202 EZ |
675 | |
676 | /* If PWD is set, pass it with corrected value. */ | |
48178f9a | 677 | if (epwd) |
c0917202 | 678 | { |
48178f9a | 679 | strcpy (old_pwd, epwd); |
c0917202 EZ |
680 | if (str[len - 1] == '/') |
681 | str[len - 1] = '\0'; | |
682 | setenv ("PWD", str, 1); | |
683 | } | |
684 | st = system (sh); | |
685 | chdir (oldwd); | |
48178f9a | 686 | if (epwd) |
c0917202 EZ |
687 | putenv (old_pwd); /* restore previous value */ |
688 | } | |
207bdbdb | 689 | #else /* not MSDOS */ |
fe03522b | 690 | #ifdef WINDOWSNT |
fe03522b RS |
691 | /* Waits for process completion */ |
692 | pid = _spawnlp (_P_WAIT, sh, sh, NULL); | |
ad00c243 | 693 | chdir (oldwd); |
fe03522b RS |
694 | if (pid == -1) |
695 | write (1, "Can't execute subshell", 22); | |
fe03522b | 696 | #else /* not WINDOWSNT */ |
e120ea40 | 697 | execlp (sh, sh, (char *) 0); |
86a5659e JB |
698 | write (1, "Can't execute subshell", 22); |
699 | _exit (1); | |
fe03522b | 700 | #endif /* not WINDOWSNT */ |
207bdbdb | 701 | #endif /* not MSDOS */ |
86a5659e JB |
702 | } |
703 | ||
718ca3cf | 704 | /* Do this now if we did not do it before. */ |
ed68db4d | 705 | #ifndef MSDOS |
86a5659e | 706 | save_signal_handlers (saved_handlers); |
ffafc793 | 707 | synch_process_alive = 1; |
718ca3cf RS |
708 | #endif |
709 | ||
ad00c243 | 710 | #ifndef DOS_NT |
86a5659e | 711 | wait_for_termination (pid); |
7964ba9e | 712 | #endif |
86a5659e | 713 | restore_signal_handlers (saved_handlers); |
718ca3cf | 714 | synch_process_alive = 0; |
86a5659e JB |
715 | } |
716 | ||
35a05cca | 717 | static void |
971de7fb | 718 | save_signal_handlers (struct save_signal *saved_handlers) |
86a5659e JB |
719 | { |
720 | while (saved_handlers->code) | |
721 | { | |
508b171c | 722 | saved_handlers->handler |
f57e2426 | 723 | = (SIGTYPE (*) (int)) signal (saved_handlers->code, SIG_IGN); |
86a5659e JB |
724 | saved_handlers++; |
725 | } | |
726 | } | |
727 | ||
35a05cca | 728 | static void |
971de7fb | 729 | restore_signal_handlers (struct save_signal *saved_handlers) |
86a5659e JB |
730 | { |
731 | while (saved_handlers->code) | |
732 | { | |
733 | signal (saved_handlers->code, saved_handlers->handler); | |
734 | saved_handlers++; | |
735 | } | |
736 | } | |
737 | \f | |
4d553a13 KL |
738 | #ifndef SIGIO |
739 | /* If SIGIO is broken, don't do anything. */ | |
740 | void | |
741 | init_sigio (int fd) | |
742 | { | |
743 | } | |
744 | ||
745 | void | |
746 | reset_sigio (int fd) | |
747 | { | |
748 | } | |
749 | ||
750 | void | |
751 | request_sigio (void) | |
752 | { | |
753 | } | |
754 | ||
755 | void | |
756 | unrequest_sigio (void) | |
757 | { | |
758 | } | |
759 | ||
760 | #else | |
86a5659e JB |
761 | #ifdef F_SETFL |
762 | ||
819b8f00 | 763 | int old_fcntl_flags[MAXDESC]; |
86a5659e | 764 | |
08633194 | 765 | void |
971de7fb | 766 | init_sigio (int fd) |
86a5659e JB |
767 | { |
768 | #ifdef FASYNC | |
819b8f00 KL |
769 | old_fcntl_flags[fd] = fcntl (fd, F_GETFL, 0) & ~FASYNC; |
770 | fcntl (fd, F_SETFL, old_fcntl_flags[fd] | FASYNC); | |
86a5659e | 771 | #endif |
23dab951 | 772 | interrupts_deferred = 0; |
86a5659e JB |
773 | } |
774 | ||
590034f9 | 775 | void |
971de7fb | 776 | reset_sigio (int fd) |
86a5659e | 777 | { |
4d553a13 | 778 | #ifdef FASYNC |
819b8f00 | 779 | fcntl (fd, F_SETFL, old_fcntl_flags[fd]); |
4d553a13 | 780 | #endif |
86a5659e JB |
781 | } |
782 | ||
eb8c3be9 | 783 | #ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */ |
428a555e | 784 | /* XXX Uhm, FASYNC is not used anymore here. */ |
6d8cf830 | 785 | /* XXX Yeah, but you need it for SIGIO, don't you? */ |
86a5659e | 786 | |
08633194 | 787 | void |
971de7fb | 788 | request_sigio (void) |
86a5659e | 789 | { |
6bbba5a6 | 790 | if (noninteractive) |
23dab951 RS |
791 | return; |
792 | ||
86a5659e | 793 | #ifdef SIGWINCH |
e065a56e | 794 | sigunblock (sigmask (SIGWINCH)); |
86a5659e | 795 | #endif |
0a125897 | 796 | sigunblock (sigmask (SIGIO)); |
86a5659e JB |
797 | |
798 | interrupts_deferred = 0; | |
799 | } | |
800 | ||
08633194 | 801 | void |
0a125897 | 802 | unrequest_sigio (void) |
428a555e | 803 | { |
6bbba5a6 KL |
804 | if (noninteractive) |
805 | return; | |
806 | ||
807 | #if 0 /* XXX What's wrong with blocking SIGIO under X? */ | |
808 | if (x_display_list) | |
23dab951 | 809 | return; |
428a555e | 810 | #endif |
6bbba5a6 | 811 | |
86a5659e | 812 | #ifdef SIGWINCH |
e065a56e | 813 | sigblock (sigmask (SIGWINCH)); |
86a5659e | 814 | #endif |
0a125897 | 815 | sigblock (sigmask (SIGIO)); |
86a5659e JB |
816 | interrupts_deferred = 1; |
817 | } | |
818 | ||
819 | #else /* no FASYNC */ | |
feb67dfe | 820 | #ifndef MSDOS |
25ab68af | 821 | |
08633194 | 822 | void |
86a5659e JB |
823 | request_sigio () |
824 | { | |
6e5b2385 | 825 | if (noninteractive || read_socket_hook) |
23dab951 RS |
826 | return; |
827 | ||
86a5659e JB |
828 | croak ("request_sigio"); |
829 | } | |
177c0ea7 | 830 | |
08633194 | 831 | void |
86a5659e JB |
832 | unrequest_sigio () |
833 | { | |
6e5b2385 | 834 | if (noninteractive || read_socket_hook) |
23dab951 RS |
835 | return; |
836 | ||
86a5659e JB |
837 | croak ("unrequest_sigio"); |
838 | } | |
feb67dfe EZ |
839 | |
840 | #endif /* MSDOS */ | |
86a5659e JB |
841 | #endif /* FASYNC */ |
842 | #endif /* F_SETFL */ | |
4d553a13 | 843 | #endif /* SIGIO */ |
9ae8f997 | 844 | |
9ae8f997 | 845 | \f |
68936329 JB |
846 | /* Getting and setting emacs_tty structures. */ |
847 | ||
848 | /* Set *TC to the parameters associated with the terminal FD. | |
849 | Return zero if all's well, or -1 if we ran into an error we | |
850 | couldn't deal with. */ | |
851 | int | |
971de7fb | 852 | emacs_get_tty (int fd, struct emacs_tty *settings) |
68936329 JB |
853 | { |
854 | /* Retrieve the primary parameters - baud rate, character size, etcetera. */ | |
855 | #ifdef HAVE_TCATTR | |
856 | /* We have those nifty POSIX tcmumbleattr functions. */ | |
1d9f9f9e | 857 | bzero (&settings->main, sizeof (settings->main)); |
68936329 JB |
858 | if (tcgetattr (fd, &settings->main) < 0) |
859 | return -1; | |
860 | ||
861 | #else | |
862 | #ifdef HAVE_TERMIO | |
863 | /* The SYSV-style interface? */ | |
864 | if (ioctl (fd, TCGETA, &settings->main) < 0) | |
865 | return -1; | |
866 | ||
68936329 | 867 | #else |
fe03522b | 868 | #ifndef DOS_NT |
68936329 JB |
869 | /* I give up - I hope you have the BSD ioctls. */ |
870 | if (ioctl (fd, TIOCGETP, &settings->main) < 0) | |
871 | return -1; | |
fe03522b | 872 | #endif /* not DOS_NT */ |
68936329 | 873 | #endif |
68936329 JB |
874 | #endif |
875 | ||
876 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 877 | #ifdef HAVE_LTCHARS |
68936329 JB |
878 | if (ioctl (fd, TIOCGLTC, &settings->ltchars) < 0) |
879 | return -1; | |
880 | #endif | |
881 | ||
882 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 883 | #ifdef HAVE_TCHARS |
68936329 JB |
884 | if (ioctl (fd, TIOCGETC, &settings->tchars) < 0 |
885 | || ioctl (fd, TIOCLGET, &settings->lmode) < 0) | |
886 | return -1; | |
887 | #endif | |
888 | ||
889 | /* We have survived the tempest. */ | |
890 | return 0; | |
891 | } | |
892 | ||
893 | ||
894 | /* Set the parameters of the tty on FD according to the contents of | |
394049ec | 895 | *SETTINGS. If FLUSHP is non-zero, we discard input. |
68936329 | 896 | Return 0 if all went well, and -1 if anything failed. */ |
394049ec | 897 | |
68936329 | 898 | int |
971de7fb | 899 | emacs_set_tty (int fd, struct emacs_tty *settings, int flushp) |
68936329 JB |
900 | { |
901 | /* Set the primary parameters - baud rate, character size, etcetera. */ | |
902 | #ifdef HAVE_TCATTR | |
e6cc3307 | 903 | int i; |
68936329 JB |
904 | /* We have those nifty POSIX tcmumbleattr functions. |
905 | William J. Smith <wjs@wiis.wang.com> writes: | |
c4ea52a6 | 906 | "POSIX 1003.1 defines tcsetattr to return success if it was |
68936329 JB |
907 | able to perform any of the requested actions, even if some |
908 | of the requested actions could not be performed. | |
909 | We must read settings back to ensure tty setup properly. | |
910 | AIX requires this to keep tty from hanging occasionally." */ | |
eb8c3be9 | 911 | /* This make sure that we don't loop indefinitely in here. */ |
e6cc3307 | 912 | for (i = 0 ; i < 10 ; i++) |
394049ec | 913 | if (tcsetattr (fd, flushp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0) |
68936329 JB |
914 | { |
915 | if (errno == EINTR) | |
916 | continue; | |
917 | else | |
918 | return -1; | |
919 | } | |
920 | else | |
921 | { | |
922 | struct termios new; | |
923 | ||
1d9f9f9e | 924 | bzero (&new, sizeof (new)); |
68936329 JB |
925 | /* Get the current settings, and see if they're what we asked for. */ |
926 | tcgetattr (fd, &new); | |
e6cc3307 RS |
927 | /* We cannot use memcmp on the whole structure here because under |
928 | * aix386 the termios structure has some reserved field that may | |
929 | * not be filled in. | |
930 | */ | |
931 | if ( new.c_iflag == settings->main.c_iflag | |
932 | && new.c_oflag == settings->main.c_oflag | |
933 | && new.c_cflag == settings->main.c_cflag | |
934 | && new.c_lflag == settings->main.c_lflag | |
c4ea52a6 | 935 | && memcmp (new.c_cc, settings->main.c_cc, NCCS) == 0) |
68936329 | 936 | break; |
e6cc3307 RS |
937 | else |
938 | continue; | |
68936329 JB |
939 | } |
940 | ||
941 | #else | |
942 | #ifdef HAVE_TERMIO | |
943 | /* The SYSV-style interface? */ | |
394049ec | 944 | if (ioctl (fd, flushp ? TCSETAF : TCSETAW, &settings->main) < 0) |
68936329 JB |
945 | return -1; |
946 | ||
68936329 | 947 | #else |
fe03522b | 948 | #ifndef DOS_NT |
68936329 | 949 | /* I give up - I hope you have the BSD ioctls. */ |
394049ec | 950 | if (ioctl (fd, (flushp) ? TIOCSETP : TIOCSETN, &settings->main) < 0) |
68936329 | 951 | return -1; |
fe03522b | 952 | #endif /* not DOS_NT */ |
68936329 | 953 | |
68936329 JB |
954 | #endif |
955 | #endif | |
956 | ||
957 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 958 | #ifdef HAVE_LTCHARS |
68936329 JB |
959 | if (ioctl (fd, TIOCSLTC, &settings->ltchars) < 0) |
960 | return -1; | |
961 | #endif | |
962 | ||
963 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 964 | #ifdef HAVE_TCHARS |
68936329 JB |
965 | if (ioctl (fd, TIOCSETC, &settings->tchars) < 0 |
966 | || ioctl (fd, TIOCLSET, &settings->lmode) < 0) | |
967 | return -1; | |
968 | #endif | |
177c0ea7 | 969 | |
68936329 JB |
970 | /* We have survived the tempest. */ |
971 | return 0; | |
972 | } | |
973 | ||
974 | \f | |
86a5659e JB |
975 | |
976 | #ifdef F_SETOWN | |
819b8f00 | 977 | int old_fcntl_owner[MAXDESC]; |
86a5659e JB |
978 | #endif /* F_SETOWN */ |
979 | ||
86a5659e JB |
980 | /* This may also be defined in stdio, |
981 | but if so, this does no harm, | |
982 | and using the same name avoids wasting the other one's space. */ | |
983 | ||
9d9a7716 | 984 | #if defined (USG) |
86a5659e JB |
985 | unsigned char _sobuf[BUFSIZ+8]; |
986 | #else | |
987 | char _sobuf[BUFSIZ]; | |
988 | #endif | |
177c0ea7 | 989 | |
50b8cf60 | 990 | #ifdef HAVE_LTCHARS |
86a5659e JB |
991 | static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1}; |
992 | #endif | |
50b8cf60 | 993 | #ifdef HAVE_TCHARS |
4ec5cb58 | 994 | static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; |
177c0ea7 | 995 | #endif |
86a5659e | 996 | |
da8e1115 KL |
997 | /* Initialize the terminal mode on all tty devices that are currently |
998 | open. */ | |
999 | ||
08633194 | 1000 | void |
28d440ab KL |
1001 | init_all_sys_modes (void) |
1002 | { | |
28d7d09f | 1003 | struct tty_display_info *tty; |
16c290d8 | 1004 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 1005 | init_sys_modes (tty); |
28d440ab KL |
1006 | } |
1007 | ||
da8e1115 KL |
1008 | /* Initialize the terminal mode on the given tty device. */ |
1009 | ||
28d440ab | 1010 | void |
971de7fb | 1011 | init_sys_modes (struct tty_display_info *tty_out) |
86a5659e | 1012 | { |
91bac16a JB |
1013 | struct emacs_tty tty; |
1014 | ||
4ec5cb58 RS |
1015 | Vtty_erase_char = Qnil; |
1016 | ||
86a5659e JB |
1017 | if (noninteractive) |
1018 | return; | |
1019 | ||
0b0d3e0b KL |
1020 | if (!tty_out->output) |
1021 | return; /* The tty is suspended. */ | |
1022 | ||
2246281f KL |
1023 | if (! tty_out->old_tty) |
1024 | tty_out->old_tty = (struct emacs_tty *) xmalloc (sizeof (struct emacs_tty)); | |
fca177d4 | 1025 | |
0b0d3e0b | 1026 | EMACS_GET_TTY (fileno (tty_out->input), tty_out->old_tty); |
23dab951 | 1027 | |
2246281f | 1028 | tty = *tty_out->old_tty; |
86a5659e | 1029 | |
31be8d24 | 1030 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
2246281f | 1031 | XSETINT (Vtty_erase_char, tty.main.c_cc[VERASE]); |
4ec5cb58 | 1032 | |
2246281f KL |
1033 | tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */ |
1034 | tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ | |
7f371164 RS |
1035 | #ifdef INLCR /* I'm just being cautious, |
1036 | since I can't check how widespread INLCR is--rms. */ | |
2246281f | 1037 | tty.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */ |
7f371164 | 1038 | #endif |
86a5659e | 1039 | #ifdef ISTRIP |
2246281f | 1040 | tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ |
86a5659e | 1041 | #endif |
2246281f KL |
1042 | tty.main.c_lflag &= ~ECHO; /* Disable echo */ |
1043 | tty.main.c_lflag &= ~ICANON; /* Disable erase/kill processing */ | |
e2b40c23 | 1044 | #ifdef IEXTEN |
2246281f | 1045 | tty.main.c_lflag &= ~IEXTEN; /* Disable other editing characters. */ |
e2b40c23 | 1046 | #endif |
2246281f KL |
1047 | tty.main.c_lflag |= ISIG; /* Enable signals */ |
1048 | if (tty_out->flow_control) | |
1049 | { | |
1050 | tty.main.c_iflag |= IXON; /* Enable start/stop output control */ | |
86a5659e | 1051 | #ifdef IXANY |
2246281f | 1052 | tty.main.c_iflag &= ~IXANY; |
86a5659e | 1053 | #endif /* IXANY */ |
2246281f KL |
1054 | } |
1055 | else | |
1056 | tty.main.c_iflag &= ~IXON; /* Disable start/stop output control */ | |
1057 | tty.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL | |
1058 | on output */ | |
1059 | tty.main.c_oflag &= ~TAB3; /* Disable tab expansion */ | |
86a5659e | 1060 | #ifdef CS8 |
2246281f KL |
1061 | if (tty_out->meta_key) |
1062 | { | |
1063 | tty.main.c_cflag |= CS8; /* allow 8th bit on input */ | |
1064 | tty.main.c_cflag &= ~PARENB;/* Don't check parity */ | |
1065 | } | |
86a5659e | 1066 | #endif |
2246281f KL |
1067 | if (tty_out->input == stdin) |
1068 | { | |
1069 | tty.main.c_cc[VINTR] = quit_char; /* C-g (usually) gives SIGINT */ | |
1070 | /* Set up C-g for both SIGQUIT and SIGINT. | |
1071 | We don't know which we will get, but we handle both alike | |
1072 | so which one it really gives us does not matter. */ | |
1073 | tty.main.c_cc[VQUIT] = quit_char; | |
1074 | } | |
1075 | else | |
1076 | { | |
1077 | /* We normally don't get interrupt or quit signals from tty | |
1078 | devices other than our controlling terminal; therefore, | |
1079 | we must handle C-g as normal input. Unfortunately, this | |
1080 | means that the interrupt and quit feature must be | |
1081 | disabled on secondary ttys, or we would not even see the | |
1082 | keypress. | |
1083 | ||
1084 | Note that even though emacsclient could have special code | |
1085 | to pass SIGINT to Emacs, we should _not_ enable | |
1086 | interrupt/quit keys for emacsclient frames. This means | |
1087 | that we can't break out of loops in C code from a | |
1088 | secondary tty frame, but we can always decide what | |
1089 | display the C-g came from, which is more important from a | |
1090 | usability point of view. (Consider the case when two | |
1091 | people work together using the same Emacs instance.) */ | |
1092 | tty.main.c_cc[VINTR] = CDISABLE; | |
1093 | tty.main.c_cc[VQUIT] = CDISABLE; | |
1094 | } | |
1095 | tty.main.c_cc[VMIN] = 1; /* Input should wait for at least 1 char */ | |
1096 | tty.main.c_cc[VTIME] = 0; /* no matter how long that takes. */ | |
86a5659e | 1097 | #ifdef VSWTCH |
2246281f | 1098 | tty.main.c_cc[VSWTCH] = CDISABLE; /* Turn off shell layering use |
91bac16a | 1099 | of C-z */ |
86a5659e | 1100 | #endif /* VSWTCH */ |
2246281f | 1101 | |
b8ff87cc | 1102 | #if defined (__mips__) || defined (HAVE_TCATTR) |
86a5659e | 1103 | #ifdef VSUSP |
2246281f | 1104 | tty.main.c_cc[VSUSP] = CDISABLE; /* Turn off mips handling of C-z. */ |
86a5659e JB |
1105 | #endif /* VSUSP */ |
1106 | #ifdef V_DSUSP | |
2246281f | 1107 | tty.main.c_cc[V_DSUSP] = CDISABLE; /* Turn off mips handling of C-y. */ |
86a5659e | 1108 | #endif /* V_DSUSP */ |
e2b40c23 | 1109 | #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */ |
2246281f | 1110 | tty.main.c_cc[VDSUSP] = CDISABLE; |
e2b40c23 | 1111 | #endif /* VDSUSP */ |
92c995de | 1112 | #ifdef VLNEXT |
2246281f | 1113 | tty.main.c_cc[VLNEXT] = CDISABLE; |
92c995de RS |
1114 | #endif /* VLNEXT */ |
1115 | #ifdef VREPRINT | |
2246281f | 1116 | tty.main.c_cc[VREPRINT] = CDISABLE; |
92c995de RS |
1117 | #endif /* VREPRINT */ |
1118 | #ifdef VWERASE | |
2246281f | 1119 | tty.main.c_cc[VWERASE] = CDISABLE; |
92c995de RS |
1120 | #endif /* VWERASE */ |
1121 | #ifdef VDISCARD | |
2246281f | 1122 | tty.main.c_cc[VDISCARD] = CDISABLE; |
92c995de | 1123 | #endif /* VDISCARD */ |
c179a6d1 | 1124 | |
2246281f KL |
1125 | if (tty_out->flow_control) |
1126 | { | |
421dd92f | 1127 | #ifdef VSTART |
2246281f | 1128 | tty.main.c_cc[VSTART] = '\021'; |
421dd92f RS |
1129 | #endif /* VSTART */ |
1130 | #ifdef VSTOP | |
2246281f | 1131 | tty.main.c_cc[VSTOP] = '\023'; |
421dd92f | 1132 | #endif /* VSTOP */ |
2246281f KL |
1133 | } |
1134 | else | |
1135 | { | |
c179a6d1 | 1136 | #ifdef VSTART |
2246281f | 1137 | tty.main.c_cc[VSTART] = CDISABLE; |
c179a6d1 RS |
1138 | #endif /* VSTART */ |
1139 | #ifdef VSTOP | |
2246281f | 1140 | tty.main.c_cc[VSTOP] = CDISABLE; |
c179a6d1 | 1141 | #endif /* VSTOP */ |
2246281f | 1142 | } |
86a5659e | 1143 | #endif /* mips or HAVE_TCATTR */ |
c179a6d1 | 1144 | |
86a5659e | 1145 | #ifdef AIX |
f5272227 KL |
1146 | tty.main.c_cc[VSTRT] = CDISABLE; |
1147 | tty.main.c_cc[VSTOP] = CDISABLE; | |
1148 | tty.main.c_cc[VSUSP] = CDISABLE; | |
1149 | tty.main.c_cc[VDSUSP] = CDISABLE; | |
2246281f KL |
1150 | if (tty_out->flow_control) |
1151 | { | |
ac567c95 | 1152 | #ifdef VSTART |
2246281f | 1153 | tty.main.c_cc[VSTART] = '\021'; |
ac567c95 RS |
1154 | #endif /* VSTART */ |
1155 | #ifdef VSTOP | |
2246281f | 1156 | tty.main.c_cc[VSTOP] = '\023'; |
ac567c95 | 1157 | #endif /* VSTOP */ |
2246281f KL |
1158 | } |
1159 | /* Also, PTY overloads NUL and BREAK. | |
1160 | don't ignore break, but don't signal either, so it looks like NUL. | |
1161 | This really serves a purpose only if running in an XTERM window | |
1162 | or via TELNET or the like, but does no harm elsewhere. */ | |
1163 | tty.main.c_iflag &= ~IGNBRK; | |
1164 | tty.main.c_iflag &= ~BRKINT; | |
86a5659e JB |
1165 | #endif |
1166 | #else /* if not HAVE_TERMIO */ | |
fe03522b | 1167 | #ifndef DOS_NT |
2246281f KL |
1168 | XSETINT (Vtty_erase_char, tty.main.sg_erase); |
1169 | tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS); | |
1170 | if (meta_key) | |
1171 | tty.main.sg_flags |= ANYP; | |
1172 | tty.main.sg_flags |= interrupt_input ? RAW : CBREAK; | |
fe03522b | 1173 | #endif /* not DOS_NT */ |
86a5659e JB |
1174 | #endif /* not HAVE_TERMIO */ |
1175 | ||
2246281f KL |
1176 | /* If going to use CBREAK mode, we must request C-g to interrupt |
1177 | and turn off start and stop chars, etc. If not going to use | |
1178 | CBREAK mode, do this anyway so as to turn off local flow | |
1179 | control for user coming over network on 4.2; in this case, | |
1180 | only t_stopc and t_startc really matter. */ | |
91bac16a | 1181 | #ifndef HAVE_TERMIO |
50b8cf60 | 1182 | #ifdef HAVE_TCHARS |
2246281f KL |
1183 | /* Note: if not using CBREAK mode, it makes no difference how we |
1184 | set this */ | |
1185 | tty.tchars = new_tchars; | |
1186 | tty.tchars.t_intrc = quit_char; | |
1187 | if (tty_out->flow_control) | |
1188 | { | |
1189 | tty.tchars.t_startc = '\021'; | |
1190 | tty.tchars.t_stopc = '\023'; | |
1191 | } | |
1192 | ||
1193 | tty.lmode = LDECCTQ | LLITOUT | LPASS8 | LNOFLSH | tty_out->old_tty.lmode; | |
2246281f | 1194 | |
50b8cf60 | 1195 | #endif /* HAVE_TCHARS */ |
91bac16a JB |
1196 | #endif /* not HAVE_TERMIO */ |
1197 | ||
50b8cf60 | 1198 | #ifdef HAVE_LTCHARS |
2246281f | 1199 | tty.ltchars = new_ltchars; |
50b8cf60 | 1200 | #endif /* HAVE_LTCHARS */ |
207bdbdb | 1201 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ |
2246281f KL |
1202 | if (!tty_out->term_initted) |
1203 | internal_terminal_init (); | |
4e389d32 | 1204 | dos_ttraw (tty_out); |
207bdbdb | 1205 | #endif |
91bac16a | 1206 | |
0b0d3e0b | 1207 | EMACS_SET_TTY (fileno (tty_out->input), &tty, 0); |
86a5659e | 1208 | |
2246281f KL |
1209 | /* This code added to insure that, if flow-control is not to be used, |
1210 | we have an unlocked terminal at the start. */ | |
91bac16a | 1211 | |
86a5659e | 1212 | #ifdef TCXONC |
0b0d3e0b | 1213 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TCXONC, 1); |
86a5659e | 1214 | #endif |
86a5659e | 1215 | #ifdef TIOCSTART |
0b0d3e0b | 1216 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TIOCSTART, 0); |
86a5659e | 1217 | #endif |
86a5659e | 1218 | |
f2a77c3a | 1219 | #if defined (HAVE_TERMIOS) || defined (HPUX) |
51417996 | 1220 | #ifdef TCOON |
0b0d3e0b | 1221 | if (!tty_out->flow_control) tcflow (fileno (tty_out->input), TCOON); |
d228f207 | 1222 | #endif |
51417996 | 1223 | #endif |
d228f207 | 1224 | |
86a5659e | 1225 | #ifdef F_SETFL |
eb8c3be9 | 1226 | #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */ |
2246281f | 1227 | if (interrupt_input) |
86a5659e | 1228 | { |
0b0d3e0b KL |
1229 | old_fcntl_owner[fileno (tty_out->input)] = |
1230 | fcntl (fileno (tty_out->input), F_GETOWN, 0); | |
1231 | fcntl (fileno (tty_out->input), F_SETOWN, getpid ()); | |
1232 | init_sigio (fileno (tty_out->input)); | |
7e5a23bd | 1233 | #ifdef HAVE_GPM |
75a8734b | 1234 | if (gpm_tty == tty_out) |
3e748bcb | 1235 | { |
75a8734b | 1236 | /* Arrange for mouse events to give us SIGIO signals. */ |
3e748bcb | 1237 | fcntl (gpm_fd, F_SETOWN, getpid ()); |
57669cf1 | 1238 | fcntl (gpm_fd, F_SETFL, fcntl (gpm_fd, F_GETFL, 0) | O_NONBLOCK); |
3e748bcb NR |
1239 | init_sigio (gpm_fd); |
1240 | } | |
7e5a23bd | 1241 | #endif /* HAVE_GPM */ |
86a5659e JB |
1242 | } |
1243 | #endif /* F_GETOWN */ | |
1244 | #endif /* F_SETFL */ | |
1245 | ||
86a5659e JB |
1246 | #ifdef _IOFBF |
1247 | /* This symbol is defined on recent USG systems. | |
1248 | Someone says without this call USG won't really buffer the file | |
1249 | even with a call to setbuf. */ | |
0b0d3e0b | 1250 | setvbuf (tty_out->output, (char *) _sobuf, _IOFBF, sizeof _sobuf); |
86a5659e | 1251 | #else |
0b0d3e0b | 1252 | setbuf (tty_out->output, (char *) _sobuf); |
86a5659e | 1253 | #endif |
4d553a13 | 1254 | |
69fb5031 JR |
1255 | if (tty_out->terminal->set_terminal_modes_hook) |
1256 | tty_out->terminal->set_terminal_modes_hook (tty_out->terminal); | |
4b311aaf | 1257 | |
9628b887 KL |
1258 | if (!tty_out->term_initted) |
1259 | { | |
1260 | Lisp_Object tail, frame; | |
1261 | FOR_EACH_FRAME (tail, frame) | |
1262 | { | |
daf01701 | 1263 | /* XXX This needs to be revised. */ |
9628b887 KL |
1264 | if (FRAME_TERMCAP_P (XFRAME (frame)) |
1265 | && FRAME_TTY (XFRAME (frame)) == tty_out) | |
1266 | init_frame_faces (XFRAME (frame)); | |
1267 | } | |
1268 | } | |
045942b2 | 1269 | |
9628b887 | 1270 | if (tty_out->term_initted && no_redraw_on_reenter) |
86a5659e | 1271 | { |
855a0da7 SM |
1272 | /* We used to call "direct_output_forward_char(0)" here, |
1273 | but it's not clear why, since it may not do anything anyway. */ | |
86a5659e JB |
1274 | } |
1275 | else | |
1276 | { | |
9628b887 | 1277 | Lisp_Object tail, frame; |
0137dbf7 | 1278 | frame_garbaged = 1; |
9628b887 KL |
1279 | FOR_EACH_FRAME (tail, frame) |
1280 | { | |
7ab98847 EZ |
1281 | if ((FRAME_TERMCAP_P (XFRAME (frame)) |
1282 | || FRAME_MSDOS_P (XFRAME (frame))) | |
9628b887 KL |
1283 | && FRAME_TTY (XFRAME (frame)) == tty_out) |
1284 | FRAME_GARBAGED_P (XFRAME (frame)) = 1; | |
1285 | } | |
86a5659e | 1286 | } |
91bac16a | 1287 | |
9628b887 | 1288 | tty_out->term_initted = 1; |
86a5659e JB |
1289 | } |
1290 | ||
1291 | /* Return nonzero if safe to use tabs in output. | |
1292 | At the time this is called, init_sys_modes has not been done yet. */ | |
177c0ea7 | 1293 | |
dfcf069d | 1294 | int |
16c290d8 | 1295 | tabs_safe_p (int fd) |
86a5659e | 1296 | { |
6548cf00 | 1297 | struct emacs_tty etty; |
91bac16a | 1298 | |
16c290d8 | 1299 | EMACS_GET_TTY (fd, &etty); |
6548cf00 | 1300 | return EMACS_TTY_TABS_OK (&etty); |
86a5659e | 1301 | } |
73d5358f | 1302 | \f |
86a5659e | 1303 | /* Get terminal size from system. |
73d5358f RS |
1304 | Store number of lines into *HEIGHTP and width into *WIDTHP. |
1305 | We store 0 if there's no valid information. */ | |
86a5659e | 1306 | |
08633194 | 1307 | void |
16c290d8 | 1308 | get_tty_size (int fd, int *widthp, int *heightp) |
86a5659e | 1309 | { |
86a5659e | 1310 | |
86a5659e | 1311 | #ifdef TIOCGWINSZ |
91bac16a JB |
1312 | |
1313 | /* BSD-style. */ | |
86a5659e | 1314 | struct winsize size; |
91bac16a | 1315 | |
16c290d8 | 1316 | if (ioctl (fd, TIOCGWINSZ, &size) == -1) |
91bac16a JB |
1317 | *widthp = *heightp = 0; |
1318 | else | |
1319 | { | |
1320 | *widthp = size.ws_col; | |
1321 | *heightp = size.ws_row; | |
1322 | } | |
1323 | ||
1324 | #else | |
1325 | #ifdef TIOCGSIZE | |
1326 | ||
1327 | /* SunOS - style. */ | |
177c0ea7 | 1328 | struct ttysize size; |
91bac16a | 1329 | |
16c290d8 | 1330 | if (ioctl (fd, TIOCGSIZE, &size) == -1) |
91bac16a JB |
1331 | *widthp = *heightp = 0; |
1332 | else | |
1333 | { | |
1334 | *widthp = size.ts_cols; | |
1335 | *heightp = size.ts_lines; | |
1336 | } | |
1337 | ||
207bdbdb RS |
1338 | #else |
1339 | #ifdef MSDOS | |
1340 | *widthp = ScreenCols (); | |
1341 | *heightp = ScreenRows (); | |
86a5659e JB |
1342 | #else /* system doesn't know size */ |
1343 | *widthp = 0; | |
1344 | *heightp = 0; | |
207bdbdb | 1345 | #endif |
91bac16a JB |
1346 | #endif /* not SunOS-style */ |
1347 | #endif /* not BSD-style */ | |
86a5659e | 1348 | } |
91bac16a | 1349 | |
73d5358f RS |
1350 | /* Set the logical window size associated with descriptor FD |
1351 | to HEIGHT and WIDTH. This is used mainly with ptys. */ | |
1352 | ||
1353 | int | |
971de7fb | 1354 | set_window_size (int fd, int height, int width) |
73d5358f RS |
1355 | { |
1356 | #ifdef TIOCSWINSZ | |
1357 | ||
1358 | /* BSD-style. */ | |
1359 | struct winsize size; | |
1360 | size.ws_row = height; | |
1361 | size.ws_col = width; | |
1362 | ||
1363 | if (ioctl (fd, TIOCSWINSZ, &size) == -1) | |
1364 | return 0; /* error */ | |
1365 | else | |
1366 | return 1; | |
1367 | ||
1368 | #else | |
1369 | #ifdef TIOCSSIZE | |
1370 | ||
1371 | /* SunOS - style. */ | |
177c0ea7 | 1372 | struct ttysize size; |
73d5358f RS |
1373 | size.ts_lines = height; |
1374 | size.ts_cols = width; | |
1375 | ||
1376 | if (ioctl (fd, TIOCGSIZE, &size) == -1) | |
1377 | return 0; | |
1378 | else | |
1379 | return 1; | |
1380 | #else | |
1381 | return -1; | |
1382 | #endif /* not SunOS-style */ | |
1383 | #endif /* not BSD-style */ | |
1384 | } | |
1385 | ||
86a5659e | 1386 | \f |
da8e1115 KL |
1387 | |
1388 | /* Prepare all terminal devices for exiting Emacs. */ | |
1389 | ||
28d440ab KL |
1390 | void |
1391 | reset_all_sys_modes (void) | |
1392 | { | |
28d7d09f | 1393 | struct tty_display_info *tty; |
16c290d8 | 1394 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 1395 | reset_sys_modes (tty); |
28d440ab KL |
1396 | } |
1397 | ||
0a125897 | 1398 | /* Prepare the terminal for closing it; move the cursor to the |
0137dbf7 | 1399 | bottom of the frame, turn off interrupt-driven I/O, etc. */ |
da8e1115 | 1400 | |
08633194 | 1401 | void |
971de7fb | 1402 | reset_sys_modes (struct tty_display_info *tty_out) |
86a5659e JB |
1403 | { |
1404 | if (noninteractive) | |
1405 | { | |
1406 | fflush (stdout); | |
1407 | return; | |
1408 | } | |
9628b887 | 1409 | if (!tty_out->term_initted) |
86a5659e | 1410 | return; |
da8e1115 | 1411 | |
0b0d3e0b KL |
1412 | if (!tty_out->output) |
1413 | return; /* The tty is suspended. */ | |
1414 | ||
da8e1115 KL |
1415 | /* Go to and clear the last line of the terminal. */ |
1416 | ||
0a125897 | 1417 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
0b0d3e0b | 1418 | |
da8e1115 KL |
1419 | /* Code adapted from tty_clear_end_of_line. */ |
1420 | if (tty_out->TS_clr_line) | |
1421 | { | |
1422 | emacs_tputs (tty_out, tty_out->TS_clr_line, 1, cmputc); | |
1423 | } | |
1424 | else | |
1425 | { /* have to do it the hard way */ | |
1426 | int i; | |
ed8dad6b | 1427 | tty_turn_off_insert (tty_out); |
0b0d3e0b | 1428 | |
da8e1115 | 1429 | for (i = curX (tty_out); i < FrameCols (tty_out) - 1; i++) |
0b0d3e0b KL |
1430 | { |
1431 | fputc (' ', tty_out->output); | |
1432 | } | |
da8e1115 | 1433 | } |
0b0d3e0b | 1434 | |
0a125897 | 1435 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
819b8f00 KL |
1436 | fflush (tty_out->output); |
1437 | ||
69fb5031 JR |
1438 | if (tty_out->terminal->reset_terminal_modes_hook) |
1439 | tty_out->terminal->reset_terminal_modes_hook (tty_out->terminal); | |
2f98e6e3 | 1440 | |
2a633456 | 1441 | #ifdef BSD_SYSTEM |
86a5659e | 1442 | /* Avoid possible loss of output when changing terminal modes. */ |
0b0d3e0b | 1443 | fsync (fileno (tty_out->output)); |
86a5659e | 1444 | #endif |
91bac16a | 1445 | |
86a5659e | 1446 | #ifdef F_SETFL |
eb8c3be9 | 1447 | #ifdef F_SETOWN /* F_SETFL does not imply existence of F_SETOWN */ |
86a5659e JB |
1448 | if (interrupt_input) |
1449 | { | |
0b0d3e0b KL |
1450 | reset_sigio (fileno (tty_out->input)); |
1451 | fcntl (fileno (tty_out->input), F_SETOWN, | |
1452 | old_fcntl_owner[fileno (tty_out->input)]); | |
86a5659e JB |
1453 | } |
1454 | #endif /* F_SETOWN */ | |
a6b00318 | 1455 | #ifdef O_NDELAY |
0b0d3e0b KL |
1456 | fcntl (fileno (tty_out->input), F_SETFL, |
1457 | fcntl (fileno (tty_out->input), F_GETFL, 0) & ~O_NDELAY); | |
a6b00318 | 1458 | #endif |
86a5659e | 1459 | #endif /* F_SETFL */ |
91bac16a | 1460 | |
fca177d4 | 1461 | if (tty_out->old_tty) |
0b0d3e0b | 1462 | while (EMACS_SET_TTY (fileno (tty_out->input), |
fca177d4 | 1463 | tty_out->old_tty, 0) < 0 && errno == EINTR) |
7e32a4fb | 1464 | ; |
86a5659e | 1465 | |
207bdbdb RS |
1466 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
1467 | dos_ttcooked (); | |
1468 | #endif | |
1469 | ||
86a5659e JB |
1470 | } |
1471 | \f | |
1472 | #ifdef HAVE_PTYS | |
1473 | ||
1474 | /* Set up the proper status flags for use of a pty. */ | |
1475 | ||
08633194 | 1476 | void |
971de7fb | 1477 | setup_pty (int fd) |
86a5659e JB |
1478 | { |
1479 | /* I'm told that TOICREMOTE does not mean control chars | |
1480 | "can't be sent" but rather that they don't have | |
1481 | input-editing or signaling effects. | |
1482 | That should be good, because we have other ways | |
1483 | to do those things in Emacs. | |
1484 | However, telnet mode seems not to work on 4.2. | |
1485 | So TIOCREMOTE is turned off now. */ | |
1486 | ||
1487 | /* Under hp-ux, if TIOCREMOTE is turned on, some calls | |
1488 | will hang. In particular, the "timeout" feature (which | |
1489 | causes a read to return if there is no data available) | |
1490 | does this. Also it is known that telnet mode will hang | |
1491 | in such a way that Emacs must be stopped (perhaps this | |
1492 | is the same problem). | |
177c0ea7 | 1493 | |
86a5659e JB |
1494 | If TIOCREMOTE is turned off, then there is a bug in |
1495 | hp-ux which sometimes loses data. Apparently the | |
1496 | code which blocks the master process when the internal | |
1497 | buffer fills up does not work. Other than this, | |
1498 | though, everything else seems to work fine. | |
177c0ea7 | 1499 | |
86a5659e JB |
1500 | Since the latter lossage is more benign, we may as well |
1501 | lose that way. -- cph */ | |
1502 | #ifdef FIONBIO | |
bdee2ef3 | 1503 | #if defined(UNIX98_PTYS) |
86a5659e JB |
1504 | { |
1505 | int on = 1; | |
1506 | ioctl (fd, FIONBIO, &on); | |
1507 | } | |
1508 | #endif | |
1509 | #endif | |
86a5659e JB |
1510 | } |
1511 | #endif /* HAVE_PTYS */ | |
1512 | \f | |
7c2fb837 | 1513 | #if !defined(CANNOT_DUMP) || !defined(SYSTEM_MALLOC) |
86a5659e JB |
1514 | /* Some systems that cannot dump also cannot implement these. */ |
1515 | ||
1516 | /* | |
1517 | * Return the address of the start of the text segment prior to | |
1518 | * doing an unexec. After unexec the return value is undefined. | |
1519 | * See crt0.c for further explanation and _start. | |
1520 | * | |
1521 | */ | |
1522 | ||
c0c9ac48 | 1523 | #if !(defined (__NetBSD__) && defined (__ELF__)) |
260fe597 | 1524 | #ifndef HAVE_TEXT_START |
86a5659e | 1525 | char * |
971de7fb | 1526 | start_of_text (void) |
86a5659e JB |
1527 | { |
1528 | #ifdef TEXT_START | |
1529 | return ((char *) TEXT_START); | |
1530 | #else | |
86a5659e JB |
1531 | extern int _start (); |
1532 | return ((char *) _start); | |
86a5659e JB |
1533 | #endif /* TEXT_START */ |
1534 | } | |
260fe597 | 1535 | #endif /* not HAVE_TEXT_START */ |
c0c9ac48 | 1536 | #endif |
86a5659e JB |
1537 | |
1538 | /* | |
1539 | * Return the address of the start of the data segment prior to | |
1540 | * doing an unexec. After unexec the return value is undefined. | |
1541 | * See crt0.c for further information and definition of data_start. | |
1542 | * | |
1543 | * Apparently, on BSD systems this is etext at startup. On | |
1544 | * USG systems (swapping) this is highly mmu dependent and | |
1545 | * is also dependent on whether or not the program is running | |
1546 | * with shared text. Generally there is a (possibly large) | |
1547 | * gap between end of text and start of data with shared text. | |
1548 | * | |
1549 | * On Uniplus+ systems with shared text, data starts at a | |
1550 | * fixed address. Each port (from a given oem) is generally | |
1551 | * different, and the specific value of the start of data can | |
1552 | * be obtained via the UniPlus+ specific "uvar" system call, | |
1553 | * however the method outlined in crt0.c seems to be more portable. | |
1554 | * | |
1555 | * Probably what will have to happen when a USG unexec is available, | |
1556 | * at least on UniPlus, is temacs will have to be made unshared so | |
1557 | * that text and data are contiguous. Then once loadup is complete, | |
1558 | * unexec will produce a shared executable where the data can be | |
ea5a0917 | 1559 | * at the normal shared text boundary and the startofdata variable |
86a5659e JB |
1560 | * will be patched by unexec to the correct value. |
1561 | * | |
1562 | */ | |
177c0ea7 | 1563 | |
be3abfa2 | 1564 | #ifndef start_of_data |
86a5659e | 1565 | char * |
971de7fb | 1566 | start_of_data (void) |
86a5659e JB |
1567 | { |
1568 | #ifdef DATA_START | |
1569 | return ((char *) DATA_START); | |
6c65530f JB |
1570 | #else |
1571 | #ifdef ORDINARY_LINK | |
1572 | /* | |
1573 | * This is a hack. Since we're not linking crt0.c or pre_crt0.c, | |
1574 | * data_start isn't defined. We take the address of environ, which | |
1575 | * is known to live at or near the start of the system crt0.c, and | |
1576 | * we don't sweat the handful of bytes that might lose. | |
1577 | */ | |
1578 | extern char **environ; | |
1579 | ||
c4ea52a6 | 1580 | return ((char *) &environ); |
86a5659e JB |
1581 | #else |
1582 | extern int data_start; | |
1583 | return ((char *) &data_start); | |
6c65530f JB |
1584 | #endif /* ORDINARY_LINK */ |
1585 | #endif /* DATA_START */ | |
86a5659e | 1586 | } |
be3abfa2 | 1587 | #endif /* start_of_data */ |
86a5659e | 1588 | #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */ |
86a5659e | 1589 | \f |
c0c86835 KH |
1590 | /* init_system_name sets up the string for the Lisp function |
1591 | system-name to return. */ | |
86a5659e | 1592 | |
c0c86835 | 1593 | extern Lisp_Object Vsystem_name; |
86a5659e | 1594 | |
f8a80313 RS |
1595 | #ifdef HAVE_SOCKETS |
1596 | #include <sys/socket.h> | |
1597 | #include <netdb.h> | |
1598 | #endif /* HAVE_SOCKETS */ | |
f8a80313 | 1599 | |
8581cd64 KH |
1600 | #ifdef TRY_AGAIN |
1601 | #ifndef HAVE_H_ERRNO | |
1602 | extern int h_errno; | |
1603 | #endif | |
1604 | #endif /* TRY_AGAIN */ | |
1605 | ||
c0c86835 | 1606 | void |
971de7fb | 1607 | init_system_name (void) |
86a5659e | 1608 | { |
210b2b4f | 1609 | #ifndef HAVE_GETHOSTNAME |
c0c86835 KH |
1610 | struct utsname uts; |
1611 | uname (&uts); | |
1612 | Vsystem_name = build_string (uts.nodename); | |
67004ffb | 1613 | #else /* HAVE_GETHOSTNAME */ |
cc6e7269 | 1614 | unsigned int hostname_size = 256; |
c0c86835 KH |
1615 | char *hostname = (char *) alloca (hostname_size); |
1616 | ||
1617 | /* Try to get the host name; if the buffer is too short, try | |
1618 | again. Apparently, the only indication gethostname gives of | |
1619 | whether the buffer was large enough is the presence or absence | |
1620 | of a '\0' in the string. Eech. */ | |
1621 | for (;;) | |
1622 | { | |
1623 | gethostname (hostname, hostname_size - 1); | |
1624 | hostname[hostname_size - 1] = '\0'; | |
1625 | ||
1626 | /* Was the buffer large enough for the '\0'? */ | |
1627 | if (strlen (hostname) < hostname_size - 1) | |
1628 | break; | |
1629 | ||
1630 | hostname_size <<= 1; | |
1631 | hostname = (char *) alloca (hostname_size); | |
1632 | } | |
67004ffb | 1633 | #ifdef HAVE_SOCKETS |
c0c86835 KH |
1634 | /* Turn the hostname into the official, fully-qualified hostname. |
1635 | Don't do this if we're going to dump; this can confuse system | |
1636 | libraries on some machines and make the dumped emacs core dump. */ | |
67004ffb | 1637 | #ifndef CANNOT_DUMP |
c0c86835 | 1638 | if (initialized) |
67004ffb | 1639 | #endif /* not CANNOT_DUMP */ |
960d894c KH |
1640 | if (! index (hostname, '.')) |
1641 | { | |
960d894c | 1642 | int count; |
3d66b985 JD |
1643 | #ifdef HAVE_GETADDRINFO |
1644 | struct addrinfo *res; | |
1645 | struct addrinfo hints; | |
1646 | int ret; | |
1647 | ||
1648 | memset (&hints, 0, sizeof(hints)); | |
1649 | hints.ai_socktype = SOCK_STREAM; | |
1650 | hints.ai_flags = AI_CANONNAME; | |
1651 | ||
960d894c KH |
1652 | for (count = 0;; count++) |
1653 | { | |
3d66b985 JD |
1654 | if ((ret = getaddrinfo (hostname, NULL, &hints, &res)) == 0 |
1655 | || ret != EAI_AGAIN) | |
1656 | break; | |
1657 | ||
1658 | if (count >= 5) | |
1659 | break; | |
1660 | Fsleep_for (make_number (1), Qnil); | |
1661 | } | |
1662 | ||
1663 | if (ret == 0) | |
1664 | { | |
1665 | struct addrinfo *it = res; | |
1666 | while (it) | |
1667 | { | |
1668 | char *fqdn = it->ai_canonname; | |
1669 | if (fqdn && index (fqdn, '.') | |
1670 | && strcmp (fqdn, "localhost.localdomain") != 0) | |
1671 | break; | |
1672 | it = it->ai_next; | |
1673 | } | |
1674 | if (it) | |
1675 | { | |
1676 | hostname = alloca (strlen (it->ai_canonname) + 1); | |
1677 | strcpy (hostname, it->ai_canonname); | |
1678 | } | |
1679 | freeaddrinfo (res); | |
1680 | } | |
1681 | #else /* !HAVE_GETADDRINFO */ | |
1682 | struct hostent *hp; | |
1683 | for (count = 0;; count++) | |
1684 | { | |
1685 | ||
e24f1d55 | 1686 | #ifdef TRY_AGAIN |
960d894c | 1687 | h_errno = 0; |
e24f1d55 | 1688 | #endif |
960d894c | 1689 | hp = gethostbyname (hostname); |
efa04277 | 1690 | #ifdef TRY_AGAIN |
960d894c KH |
1691 | if (! (hp == 0 && h_errno == TRY_AGAIN)) |
1692 | #endif | |
3d66b985 | 1693 | |
960d894c | 1694 | break; |
3d66b985 | 1695 | |
960d894c KH |
1696 | if (count >= 5) |
1697 | break; | |
1698 | Fsleep_for (make_number (1), Qnil); | |
1699 | } | |
3d66b985 | 1700 | |
960d894c KH |
1701 | if (hp) |
1702 | { | |
1703 | char *fqdn = (char *) hp->h_name; | |
960d894c KH |
1704 | |
1705 | if (!index (fqdn, '.')) | |
1706 | { | |
1707 | /* We still don't have a fully qualified domain name. | |
1708 | Try to find one in the list of alternate names */ | |
1709 | char **alias = hp->h_aliases; | |
923721f4 CY |
1710 | while (*alias |
1711 | && (!index (*alias, '.') | |
1712 | || !strcmp (*alias, "localhost.localdomain"))) | |
960d894c KH |
1713 | alias++; |
1714 | if (*alias) | |
1715 | fqdn = *alias; | |
1716 | } | |
1717 | hostname = fqdn; | |
960d894c | 1718 | } |
3d66b985 | 1719 | #endif /* !HAVE_GETADDRINFO */ |
960d894c | 1720 | } |
67004ffb | 1721 | #endif /* HAVE_SOCKETS */ |
c0c86835 | 1722 | Vsystem_name = build_string (hostname); |
67004ffb | 1723 | #endif /* HAVE_GETHOSTNAME */ |
c0c86835 KH |
1724 | { |
1725 | unsigned char *p; | |
d5db4077 | 1726 | for (p = SDATA (Vsystem_name); *p; p++) |
c0c86835 KH |
1727 | if (*p == ' ' || *p == '\t') |
1728 | *p = '-'; | |
1729 | } | |
67004ffb | 1730 | } |
86a5659e | 1731 | \f |
7964ba9e | 1732 | #ifndef MSDOS |
4624371d | 1733 | #if !defined (HAVE_SELECT) |
86a5659e | 1734 | |
86d1f23a KH |
1735 | #include "sysselect.h" |
1736 | #undef select | |
1737 | ||
1738 | #if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT) | |
86a5659e JB |
1739 | /* Cause explanatory error message at compile time, |
1740 | since the select emulation is not good enough for X. */ | |
1741 | int *x = &x_windows_lose_if_no_select_system_call; | |
1742 | #endif | |
1743 | ||
1744 | /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs | |
1745 | * Only checks read descriptors. | |
1746 | */ | |
1747 | /* How long to wait between checking fds in select */ | |
1748 | #define SELECT_PAUSE 1 | |
1749 | int select_alarmed; | |
1750 | ||
1751 | /* For longjmp'ing back to read_input_waiting. */ | |
1752 | ||
1753 | jmp_buf read_alarm_throw; | |
1754 | ||
1755 | /* Nonzero if the alarm signal should throw back to read_input_waiting. | |
1756 | The read_socket_hook function sets this to 1 while it is waiting. */ | |
1757 | ||
1758 | int read_alarm_should_throw; | |
1759 | ||
1760 | SIGTYPE | |
1761 | select_alarm () | |
1762 | { | |
1763 | select_alarmed = 1; | |
86a5659e | 1764 | signal (SIGALRM, SIG_IGN); |
333f1b6f | 1765 | SIGNAL_THREAD_CHECK (SIGALRM); |
86a5659e JB |
1766 | if (read_alarm_should_throw) |
1767 | longjmp (read_alarm_throw, 1); | |
1768 | } | |
1769 | ||
9d9f1812 | 1770 | #ifndef WINDOWSNT |
86a5659e JB |
1771 | /* Only rfds are checked. */ |
1772 | int | |
86d1f23a | 1773 | sys_select (nfds, rfds, wfds, efds, timeout) |
86a5659e | 1774 | int nfds; |
86d1f23a KH |
1775 | SELECT_TYPE *rfds, *wfds, *efds; |
1776 | EMACS_TIME *timeout; | |
86a5659e | 1777 | { |
2246281f KL |
1778 | /* XXX This needs to be updated for multi-tty support. Is there |
1779 | anybody who needs to emulate select these days? */ | |
1780 | int ravail = 0; | |
86d1f23a KH |
1781 | SELECT_TYPE orfds; |
1782 | int timeoutval; | |
1783 | int *local_timeout; | |
86a5659e JB |
1784 | extern int proc_buffered_char[]; |
1785 | #ifndef subprocesses | |
1786 | int process_tick = 0, update_tick = 0; | |
1787 | #else | |
1788 | extern int process_tick, update_tick; | |
1789 | #endif | |
86a5659e JB |
1790 | unsigned char buf; |
1791 | ||
86d1f23a KH |
1792 | #if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS) |
1793 | /* If we're using X, then the native select will work; we only need the | |
1794 | emulation for non-X usage. */ | |
2246281f | 1795 | if (!NILP (Vinitial_window_system)) |
86d1f23a KH |
1796 | return select (nfds, rfds, wfds, efds, timeout); |
1797 | #endif | |
1798 | timeoutval = timeout ? EMACS_SECS (*timeout) : 100000; | |
1799 | local_timeout = &timeoutval; | |
1800 | FD_ZERO (&orfds); | |
86a5659e JB |
1801 | if (rfds) |
1802 | { | |
1803 | orfds = *rfds; | |
86d1f23a | 1804 | FD_ZERO (rfds); |
86a5659e JB |
1805 | } |
1806 | if (wfds) | |
86d1f23a | 1807 | FD_ZERO (wfds); |
86a5659e | 1808 | if (efds) |
86d1f23a | 1809 | FD_ZERO (efds); |
86a5659e JB |
1810 | |
1811 | /* If we are looking only for the terminal, with no timeout, | |
1812 | just read it and wait -- that's more efficient. */ | |
86d1f23a KH |
1813 | if (*local_timeout == 100000 && process_tick == update_tick |
1814 | && FD_ISSET (0, &orfds)) | |
86a5659e | 1815 | { |
86d1f23a KH |
1816 | int fd; |
1817 | for (fd = 1; fd < nfds; ++fd) | |
1818 | if (FD_ISSET (fd, &orfds)) | |
1819 | goto hardway; | |
86a5659e JB |
1820 | if (! detect_input_pending ()) |
1821 | read_input_waiting (); | |
86d1f23a | 1822 | FD_SET (0, rfds); |
86a5659e JB |
1823 | return 1; |
1824 | } | |
1825 | ||
86d1f23a | 1826 | hardway: |
86a5659e JB |
1827 | /* Once a second, till the timer expires, check all the flagged read |
1828 | * descriptors to see if any input is available. If there is some then | |
1829 | * set the corresponding bit in the return copy of rfds. | |
177c0ea7 | 1830 | */ |
86a5659e JB |
1831 | while (1) |
1832 | { | |
86d1f23a | 1833 | register int to_check, fd; |
86a5659e JB |
1834 | |
1835 | if (rfds) | |
1836 | { | |
86d1f23a | 1837 | for (to_check = nfds, fd = 0; --to_check >= 0; fd++) |
86a5659e | 1838 | { |
86d1f23a | 1839 | if (FD_ISSET (fd, &orfds)) |
86a5659e JB |
1840 | { |
1841 | int avail = 0, status = 0; | |
1842 | ||
86d1f23a | 1843 | if (fd == 0) |
86a5659e JB |
1844 | avail = detect_input_pending (); /* Special keyboard handler */ |
1845 | else | |
1846 | { | |
1847 | #ifdef FIONREAD | |
1848 | status = ioctl (fd, FIONREAD, &avail); | |
1849 | #else /* no FIONREAD */ | |
1850 | /* Hoping it will return -1 if nothing available | |
1851 | or 0 if all 0 chars requested are read. */ | |
1852 | if (proc_buffered_char[fd] >= 0) | |
1853 | avail = 1; | |
1854 | else | |
1855 | { | |
1856 | avail = read (fd, &buf, 1); | |
1857 | if (avail > 0) | |
1858 | proc_buffered_char[fd] = buf; | |
1859 | } | |
1860 | #endif /* no FIONREAD */ | |
1861 | } | |
1862 | if (status >= 0 && avail > 0) | |
1863 | { | |
86d1f23a | 1864 | FD_SET (fd, rfds); |
86a5659e JB |
1865 | ravail++; |
1866 | } | |
1867 | } | |
1868 | } | |
1869 | } | |
1870 | if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick) | |
1871 | break; | |
ffdcc91d GM |
1872 | |
1873 | turn_on_atimers (0); | |
1874 | signal (SIGALRM, select_alarm); | |
86a5659e JB |
1875 | select_alarmed = 0; |
1876 | alarm (SELECT_PAUSE); | |
177c0ea7 | 1877 | |
86a5659e JB |
1878 | /* Wait for a SIGALRM (or maybe a SIGTINT) */ |
1879 | while (select_alarmed == 0 && *local_timeout != 0 | |
1880 | && process_tick == update_tick) | |
1881 | { | |
1882 | /* If we are interested in terminal input, | |
1883 | wait by reading the terminal. | |
1884 | That makes instant wakeup for terminal input at least. */ | |
86d1f23a | 1885 | if (FD_ISSET (0, &orfds)) |
86a5659e JB |
1886 | { |
1887 | read_input_waiting (); | |
1888 | if (detect_input_pending ()) | |
1889 | select_alarmed = 1; | |
1890 | } | |
1891 | else | |
1892 | pause (); | |
1893 | } | |
1894 | (*local_timeout) -= SELECT_PAUSE; | |
177c0ea7 | 1895 | |
ffdcc91d GM |
1896 | /* Reset the old alarm if there was one. */ |
1897 | turn_on_atimers (1); | |
177c0ea7 | 1898 | |
86a5659e JB |
1899 | if (*local_timeout == 0) /* Stop on timer being cleared */ |
1900 | break; | |
1901 | } | |
1902 | return ravail; | |
1903 | } | |
30790a37 | 1904 | #endif /* not WINDOWSNT */ |
86a5659e JB |
1905 | |
1906 | /* Read keyboard input into the standard buffer, | |
1907 | waiting for at least one character. */ | |
1908 | ||
dfcf069d | 1909 | void |
86a5659e JB |
1910 | read_input_waiting () |
1911 | { | |
2246281f KL |
1912 | /* XXX This needs to be updated for multi-tty support. Is there |
1913 | anybody who needs to emulate select these days? */ | |
34567704 JB |
1914 | int nread, i; |
1915 | extern int quit_char; | |
86a5659e JB |
1916 | |
1917 | if (read_socket_hook) | |
1918 | { | |
9f893fc6 KS |
1919 | struct input_event hold_quit; |
1920 | ||
1921 | EVENT_INIT (hold_quit); | |
1922 | hold_quit.kind = NO_EVENT; | |
1923 | ||
86a5659e JB |
1924 | read_alarm_should_throw = 0; |
1925 | if (! setjmp (read_alarm_throw)) | |
9f893fc6 | 1926 | nread = (*read_socket_hook) (0, 1, &hold_quit); |
86a5659e JB |
1927 | else |
1928 | nread = -1; | |
f4a7e5bd | 1929 | |
9f893fc6 KS |
1930 | if (hold_quit.kind != NO_EVENT) |
1931 | kbd_buffer_store_event (&hold_quit); | |
86a5659e JB |
1932 | } |
1933 | else | |
86a5659e | 1934 | { |
50acda85 | 1935 | struct input_event e; |
f4a7e5bd RS |
1936 | char buf[3]; |
1937 | nread = read (fileno (stdin), buf, 1); | |
50acda85 | 1938 | EVENT_INIT (e); |
f4a7e5bd RS |
1939 | |
1940 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
e43bd4f5 | 1941 | e.kind = ASCII_KEYSTROKE_EVENT; |
2d064114 | 1942 | e.frame_or_window = selected_frame; |
f4a7e5bd RS |
1943 | e.modifiers = 0; |
1944 | for (i = 0; i < nread; i++) | |
a00d5589 | 1945 | { |
f4a7e5bd RS |
1946 | /* Convert chars > 0177 to meta events if desired. |
1947 | We do this under the same conditions that read_avail_input does. */ | |
1948 | if (read_socket_hook == 0) | |
1949 | { | |
1950 | /* If the user says she has a meta key, then believe her. */ | |
1951 | if (meta_key == 1 && (buf[i] & 0x80)) | |
1952 | e.modifiers = meta_modifier; | |
1953 | if (meta_key != 2) | |
1954 | buf[i] &= ~0x80; | |
1955 | } | |
b95520f5 | 1956 | |
c81d47b4 | 1957 | XSETINT (e.code, buf[i]); |
f4a7e5bd RS |
1958 | kbd_buffer_store_event (&e); |
1959 | /* Don't look at input that follows a C-g too closely. | |
1960 | This reduces lossage due to autorepeat on C-g. */ | |
1961 | if (buf[i] == quit_char) | |
1962 | break; | |
1963 | } | |
86a5659e JB |
1964 | } |
1965 | } | |
1966 | ||
4624371d | 1967 | #if !defined (HAVE_SELECT) |
819b8f00 KL |
1968 | #define select sys_select |
1969 | #endif | |
1970 | ||
86a5659e | 1971 | #endif /* not HAVE_SELECT */ |
7964ba9e | 1972 | #endif /* not MSDOS */ |
86a5659e | 1973 | \f |
86a5659e JB |
1974 | /* POSIX signals support - DJB */ |
1975 | /* Anyone with POSIX signals should have ANSI C declarations */ | |
1976 | ||
c639b0e3 | 1977 | sigset_t empty_mask, full_mask; |
86a5659e | 1978 | |
d6dae14b EZ |
1979 | #ifndef WINDOWSNT |
1980 | ||
86a5659e JB |
1981 | signal_handler_t |
1982 | sys_signal (int signal_number, signal_handler_t action) | |
1983 | { | |
c639b0e3 | 1984 | struct sigaction new_action, old_action; |
86a5659e | 1985 | sigemptyset (&new_action.sa_mask); |
e5c99298 | 1986 | new_action.sa_handler = action; |
ef874e3d AS |
1987 | new_action.sa_flags = 0; |
1988 | #if defined (SA_RESTART) | |
25ab68af | 1989 | /* Emacs mostly works better with restartable system services. If this |
55fafcf0 RS |
1990 | flag exists, we probably want to turn it on here. |
1991 | However, on some systems this resets the timeout of `select' | |
1992 | which means that `select' never finishes if it keeps getting signals. | |
1993 | BROKEN_SA_RESTART is defined on those systems. */ | |
275464e7 SM |
1994 | /* It's not clear why the comment above says "mostly works better". --Stef |
1995 | When SYNC_INPUT is set, we don't want SA_RESTART because we need to poll | |
1996 | for pending input so we need long-running syscalls to be interrupted | |
1997 | after a signal that sets the interrupt_input_pending flag. */ | |
766f52ec AS |
1998 | /* Non-interactive keyboard input goes through stdio, where we always |
1999 | want restartable system calls. */ | |
ef874e3d AS |
2000 | # if defined (BROKEN_SA_RESTART) || defined(SYNC_INPUT) |
2001 | if (noninteractive) | |
2002 | # endif | |
2003 | new_action.sa_flags = SA_RESTART; | |
25ab68af | 2004 | #endif |
d32b2f3c | 2005 | sigaction (signal_number, &new_action, &old_action); |
e5c99298 | 2006 | return (old_action.sa_handler); |
86a5659e JB |
2007 | } |
2008 | ||
d6dae14b EZ |
2009 | #endif /* WINDOWSNT */ |
2010 | ||
e065a56e JB |
2011 | #ifndef __GNUC__ |
2012 | /* If we're compiling with GCC, we don't need this function, since it | |
2013 | can be written as a macro. */ | |
2014 | sigset_t | |
2015 | sys_sigmask (int sig) | |
2016 | { | |
2017 | sigset_t mask; | |
2018 | sigemptyset (&mask); | |
2019 | sigaddset (&mask, sig); | |
2020 | return mask; | |
2021 | } | |
2022 | #endif | |
2023 | ||
86a5659e JB |
2024 | /* I'd like to have these guys return pointers to the mask storage in here, |
2025 | but there'd be trouble if the code was saving multiple masks. I'll be | |
2026 | safe and pass the structure. It normally won't be more than 2 bytes | |
2027 | anyhow. - DJB */ | |
2028 | ||
2029 | sigset_t | |
2030 | sys_sigblock (sigset_t new_mask) | |
2031 | { | |
2032 | sigset_t old_mask; | |
2033 | sigprocmask (SIG_BLOCK, &new_mask, &old_mask); | |
2034 | return (old_mask); | |
2035 | } | |
2036 | ||
2037 | sigset_t | |
2038 | sys_sigunblock (sigset_t new_mask) | |
2039 | { | |
2040 | sigset_t old_mask; | |
2041 | sigprocmask (SIG_UNBLOCK, &new_mask, &old_mask); | |
2042 | return (old_mask); | |
2043 | } | |
2044 | ||
2045 | sigset_t | |
2046 | sys_sigsetmask (sigset_t new_mask) | |
2047 | { | |
2048 | sigset_t old_mask; | |
2049 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); | |
2050 | return (old_mask); | |
2051 | } | |
2052 | ||
86a5659e | 2053 | \f |
b80263be | 2054 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
2055 | static char *my_sys_siglist[NSIG]; |
2056 | # ifdef sys_siglist | |
2057 | # undef sys_siglist | |
2058 | # endif | |
2059 | # define sys_siglist my_sys_siglist | |
2060 | #endif | |
2061 | ||
2062 | void | |
971de7fb | 2063 | init_signals (void) |
ca9c0567 | 2064 | { |
ca9c0567 PE |
2065 | sigemptyset (&empty_mask); |
2066 | sigfillset (&full_mask); | |
ca9c0567 | 2067 | |
b80263be | 2068 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
2069 | if (! initialized) |
2070 | { | |
2071 | # ifdef SIGABRT | |
2072 | sys_siglist[SIGABRT] = "Aborted"; | |
2073 | # endif | |
2074 | # ifdef SIGAIO | |
2075 | sys_siglist[SIGAIO] = "LAN I/O interrupt"; | |
2076 | # endif | |
2077 | # ifdef SIGALRM | |
2078 | sys_siglist[SIGALRM] = "Alarm clock"; | |
2079 | # endif | |
2080 | # ifdef SIGBUS | |
2081 | sys_siglist[SIGBUS] = "Bus error"; | |
2082 | # endif | |
2083 | # ifdef SIGCLD | |
2084 | sys_siglist[SIGCLD] = "Child status changed"; | |
2085 | # endif | |
2086 | # ifdef SIGCHLD | |
2087 | sys_siglist[SIGCHLD] = "Child status changed"; | |
2088 | # endif | |
2089 | # ifdef SIGCONT | |
2090 | sys_siglist[SIGCONT] = "Continued"; | |
2091 | # endif | |
2092 | # ifdef SIGDANGER | |
2093 | sys_siglist[SIGDANGER] = "Swap space dangerously low"; | |
2094 | # endif | |
2095 | # ifdef SIGDGNOTIFY | |
2096 | sys_siglist[SIGDGNOTIFY] = "Notification message in queue"; | |
2097 | # endif | |
2098 | # ifdef SIGEMT | |
2099 | sys_siglist[SIGEMT] = "Emulation trap"; | |
2100 | # endif | |
2101 | # ifdef SIGFPE | |
2102 | sys_siglist[SIGFPE] = "Arithmetic exception"; | |
2103 | # endif | |
2104 | # ifdef SIGFREEZE | |
2105 | sys_siglist[SIGFREEZE] = "SIGFREEZE"; | |
2106 | # endif | |
2107 | # ifdef SIGGRANT | |
2108 | sys_siglist[SIGGRANT] = "Monitor mode granted"; | |
2109 | # endif | |
2110 | # ifdef SIGHUP | |
2111 | sys_siglist[SIGHUP] = "Hangup"; | |
2112 | # endif | |
2113 | # ifdef SIGILL | |
2114 | sys_siglist[SIGILL] = "Illegal instruction"; | |
2115 | # endif | |
2116 | # ifdef SIGINT | |
2117 | sys_siglist[SIGINT] = "Interrupt"; | |
2118 | # endif | |
2119 | # ifdef SIGIO | |
2120 | sys_siglist[SIGIO] = "I/O possible"; | |
2121 | # endif | |
2122 | # ifdef SIGIOINT | |
2123 | sys_siglist[SIGIOINT] = "I/O intervention required"; | |
2124 | # endif | |
2125 | # ifdef SIGIOT | |
2126 | sys_siglist[SIGIOT] = "IOT trap"; | |
2127 | # endif | |
2128 | # ifdef SIGKILL | |
2129 | sys_siglist[SIGKILL] = "Killed"; | |
2130 | # endif | |
2131 | # ifdef SIGLOST | |
2132 | sys_siglist[SIGLOST] = "Resource lost"; | |
2133 | # endif | |
2134 | # ifdef SIGLWP | |
2135 | sys_siglist[SIGLWP] = "SIGLWP"; | |
2136 | # endif | |
2137 | # ifdef SIGMSG | |
2138 | sys_siglist[SIGMSG] = "Monitor mode data available"; | |
2139 | # endif | |
2140 | # ifdef SIGPHONE | |
2141 | sys_siglist[SIGWIND] = "SIGPHONE"; | |
2142 | # endif | |
2143 | # ifdef SIGPIPE | |
2144 | sys_siglist[SIGPIPE] = "Broken pipe"; | |
2145 | # endif | |
2146 | # ifdef SIGPOLL | |
2147 | sys_siglist[SIGPOLL] = "Pollable event occurred"; | |
2148 | # endif | |
2149 | # ifdef SIGPROF | |
2150 | sys_siglist[SIGPROF] = "Profiling timer expired"; | |
2151 | # endif | |
2152 | # ifdef SIGPTY | |
2153 | sys_siglist[SIGPTY] = "PTY I/O interrupt"; | |
2154 | # endif | |
2155 | # ifdef SIGPWR | |
2156 | sys_siglist[SIGPWR] = "Power-fail restart"; | |
2157 | # endif | |
2158 | # ifdef SIGQUIT | |
2159 | sys_siglist[SIGQUIT] = "Quit"; | |
2160 | # endif | |
2161 | # ifdef SIGRETRACT | |
2162 | sys_siglist[SIGRETRACT] = "Need to relinguish monitor mode"; | |
2163 | # endif | |
2164 | # ifdef SIGSAK | |
2165 | sys_siglist[SIGSAK] = "Secure attention"; | |
2166 | # endif | |
2167 | # ifdef SIGSEGV | |
2168 | sys_siglist[SIGSEGV] = "Segmentation violation"; | |
2169 | # endif | |
2170 | # ifdef SIGSOUND | |
2171 | sys_siglist[SIGSOUND] = "Sound completed"; | |
2172 | # endif | |
2173 | # ifdef SIGSTOP | |
2174 | sys_siglist[SIGSTOP] = "Stopped (signal)"; | |
2175 | # endif | |
2176 | # ifdef SIGSTP | |
2177 | sys_siglist[SIGSTP] = "Stopped (user)"; | |
2178 | # endif | |
2179 | # ifdef SIGSYS | |
2180 | sys_siglist[SIGSYS] = "Bad argument to system call"; | |
2181 | # endif | |
2182 | # ifdef SIGTERM | |
2183 | sys_siglist[SIGTERM] = "Terminated"; | |
2184 | # endif | |
2185 | # ifdef SIGTHAW | |
2186 | sys_siglist[SIGTHAW] = "SIGTHAW"; | |
2187 | # endif | |
2188 | # ifdef SIGTRAP | |
2189 | sys_siglist[SIGTRAP] = "Trace/breakpoint trap"; | |
2190 | # endif | |
2191 | # ifdef SIGTSTP | |
2192 | sys_siglist[SIGTSTP] = "Stopped (user)"; | |
2193 | # endif | |
2194 | # ifdef SIGTTIN | |
2195 | sys_siglist[SIGTTIN] = "Stopped (tty input)"; | |
2196 | # endif | |
2197 | # ifdef SIGTTOU | |
2198 | sys_siglist[SIGTTOU] = "Stopped (tty output)"; | |
2199 | # endif | |
2200 | # ifdef SIGURG | |
2201 | sys_siglist[SIGURG] = "Urgent I/O condition"; | |
2202 | # endif | |
2203 | # ifdef SIGUSR1 | |
2204 | sys_siglist[SIGUSR1] = "User defined signal 1"; | |
2205 | # endif | |
2206 | # ifdef SIGUSR2 | |
2207 | sys_siglist[SIGUSR2] = "User defined signal 2"; | |
2208 | # endif | |
2209 | # ifdef SIGVTALRM | |
2210 | sys_siglist[SIGVTALRM] = "Virtual timer expired"; | |
2211 | # endif | |
2212 | # ifdef SIGWAITING | |
2213 | sys_siglist[SIGWAITING] = "Process's LWPs are blocked"; | |
2214 | # endif | |
2215 | # ifdef SIGWINCH | |
2216 | sys_siglist[SIGWINCH] = "Window size changed"; | |
2217 | # endif | |
2218 | # ifdef SIGWIND | |
2219 | sys_siglist[SIGWIND] = "SIGWIND"; | |
2220 | # endif | |
2221 | # ifdef SIGXCPU | |
2222 | sys_siglist[SIGXCPU] = "CPU time limit exceeded"; | |
2223 | # endif | |
2224 | # ifdef SIGXFSZ | |
2225 | sys_siglist[SIGXFSZ] = "File size limit exceeded"; | |
2226 | # endif | |
2227 | } | |
b80263be | 2228 | #endif /* !defined HAVE_STRSIGNAL && !defined HAVE_DECL_SYS_SIGLIST */ |
ca9c0567 PE |
2229 | } |
2230 | \f | |
9927a7b1 | 2231 | #ifndef HAVE_RANDOM |
4bb8c8b7 KH |
2232 | #ifdef random |
2233 | #define HAVE_RANDOM | |
2234 | #endif | |
2235 | #endif | |
2236 | ||
2237 | /* Figure out how many bits the system's random number generator uses. | |
2238 | `random' and `lrand48' are assumed to return 31 usable bits. | |
2239 | BSD `rand' returns a 31 bit value but the low order bits are unusable; | |
2240 | so we'll shift it and treat it like the 15-bit USG `rand'. */ | |
2241 | ||
2242 | #ifndef RAND_BITS | |
2243 | # ifdef HAVE_RANDOM | |
2244 | # define RAND_BITS 31 | |
2245 | # else /* !HAVE_RANDOM */ | |
2246 | # ifdef HAVE_LRAND48 | |
2247 | # define RAND_BITS 31 | |
2248 | # define random lrand48 | |
2249 | # else /* !HAVE_LRAND48 */ | |
2250 | # define RAND_BITS 15 | |
2251 | # if RAND_MAX == 32767 | |
2252 | # define random rand | |
2253 | # else /* RAND_MAX != 32767 */ | |
2254 | # if RAND_MAX == 2147483647 | |
2255 | # define random() (rand () >> 16) | |
2256 | # else /* RAND_MAX != 2147483647 */ | |
2257 | # ifdef USG | |
2258 | # define random rand | |
2259 | # else | |
2260 | # define random() (rand () >> 16) | |
2a633456 | 2261 | # endif /* !USG */ |
4bb8c8b7 KH |
2262 | # endif /* RAND_MAX != 2147483647 */ |
2263 | # endif /* RAND_MAX != 32767 */ | |
2264 | # endif /* !HAVE_LRAND48 */ | |
2265 | # endif /* !HAVE_RANDOM */ | |
2266 | #endif /* !RAND_BITS */ | |
2e46c7c6 | 2267 | |
4bb8c8b7 | 2268 | void |
971de7fb | 2269 | seed_random (long int arg) |
86a5659e | 2270 | { |
4bb8c8b7 KH |
2271 | #ifdef HAVE_RANDOM |
2272 | srandom ((unsigned int)arg); | |
f8b53a82 | 2273 | #else |
4bb8c8b7 | 2274 | # ifdef HAVE_LRAND48 |
76425a49 | 2275 | srand48 (arg); |
4bb8c8b7 KH |
2276 | # else |
2277 | srand ((unsigned int)arg); | |
2278 | # endif | |
2e46c7c6 | 2279 | #endif |
86a5659e JB |
2280 | } |
2281 | ||
4bb8c8b7 KH |
2282 | /* |
2283 | * Build a full Emacs-sized word out of whatever we've got. | |
2284 | * This suffices even for a 64-bit architecture with a 15-bit rand. | |
2285 | */ | |
2286 | long | |
971de7fb | 2287 | get_random (void) |
4bb8c8b7 KH |
2288 | { |
2289 | long val = random (); | |
2290 | #if VALBITS > RAND_BITS | |
2291 | val = (val << RAND_BITS) ^ random (); | |
2292 | #if VALBITS > 2*RAND_BITS | |
2293 | val = (val << RAND_BITS) ^ random (); | |
2294 | #if VALBITS > 3*RAND_BITS | |
2295 | val = (val << RAND_BITS) ^ random (); | |
2296 | #if VALBITS > 4*RAND_BITS | |
2297 | val = (val << RAND_BITS) ^ random (); | |
2298 | #endif /* need at least 5 */ | |
2299 | #endif /* need at least 4 */ | |
2300 | #endif /* need at least 3 */ | |
2301 | #endif /* need at least 2 */ | |
2302 | return val & ((1L << VALBITS) - 1); | |
2303 | } | |
7088d1ca RM |
2304 | |
2305 | #ifndef HAVE_STRERROR | |
fe03522b | 2306 | #ifndef WINDOWSNT |
7088d1ca RM |
2307 | char * |
2308 | strerror (errnum) | |
2309 | int errnum; | |
2310 | { | |
2311 | extern char *sys_errlist[]; | |
2312 | extern int sys_nerr; | |
2313 | ||
2314 | if (errnum >= 0 && errnum < sys_nerr) | |
2315 | return sys_errlist[errnum]; | |
2316 | return (char *) "Unknown error"; | |
2317 | } | |
fe03522b | 2318 | #endif /* not WINDOWSNT */ |
7088d1ca | 2319 | #endif /* ! HAVE_STRERROR */ |
86a5659e | 2320 | \f |
86a5659e | 2321 | int |
971de7fb | 2322 | emacs_open (const char *path, int oflag, int mode) |
86a5659e JB |
2323 | { |
2324 | register int rtnval; | |
68c45bf0 | 2325 | |
86a5659e | 2326 | while ((rtnval = open (path, oflag, mode)) == -1 |
275464e7 SM |
2327 | && (errno == EINTR)) |
2328 | QUIT; | |
86a5659e JB |
2329 | return (rtnval); |
2330 | } | |
2331 | ||
dfcf069d | 2332 | int |
971de7fb | 2333 | emacs_close (int fd) |
86a5659e | 2334 | { |
fe111daf | 2335 | int did_retry = 0; |
86a5659e JB |
2336 | register int rtnval; |
2337 | ||
2338 | while ((rtnval = close (fd)) == -1 | |
fe111daf KH |
2339 | && (errno == EINTR)) |
2340 | did_retry = 1; | |
2341 | ||
2342 | /* If close is interrupted SunOS 4.1 may or may not have closed the | |
2343 | file descriptor. If it did the second close will fail with | |
2344 | errno = EBADF. That means we have succeeded. */ | |
2345 | if (rtnval == -1 && did_retry && errno == EBADF) | |
2346 | return 0; | |
2347 | ||
86a5659e JB |
2348 | return rtnval; |
2349 | } | |
2350 | ||
86a5659e | 2351 | int |
971de7fb | 2352 | emacs_read (int fildes, char *buf, unsigned int nbyte) |
86a5659e JB |
2353 | { |
2354 | register int rtnval; | |
177c0ea7 | 2355 | |
86a5659e | 2356 | while ((rtnval = read (fildes, buf, nbyte)) == -1 |
275464e7 SM |
2357 | && (errno == EINTR)) |
2358 | QUIT; | |
86a5659e JB |
2359 | return (rtnval); |
2360 | } | |
2361 | ||
2362 | int | |
971de7fb | 2363 | emacs_write (int fildes, const char *buf, unsigned int nbyte) |
86a5659e | 2364 | { |
b95520f5 | 2365 | register int rtnval, bytes_written; |
86a5659e | 2366 | |
b95520f5 BF |
2367 | bytes_written = 0; |
2368 | ||
2369 | while (nbyte > 0) | |
2370 | { | |
2371 | rtnval = write (fildes, buf, nbyte); | |
2372 | ||
2373 | if (rtnval == -1) | |
2374 | { | |
2375 | if (errno == EINTR) | |
77220eeb SM |
2376 | { |
2377 | #ifdef SYNC_INPUT | |
2378 | /* I originally used `QUIT' but that might causes files to | |
2379 | be truncated if you hit C-g in the middle of it. --Stef */ | |
55310b94 | 2380 | process_pending_signals (); |
77220eeb SM |
2381 | #endif |
2382 | continue; | |
2383 | } | |
b95520f5 | 2384 | else |
aa670904 | 2385 | return (bytes_written ? bytes_written : -1); |
b95520f5 BF |
2386 | } |
2387 | ||
2388 | buf += rtnval; | |
2389 | nbyte -= rtnval; | |
2390 | bytes_written += rtnval; | |
2391 | } | |
2392 | return (bytes_written); | |
86a5659e | 2393 | } |
86a5659e JB |
2394 | \f |
2395 | #ifdef USG | |
2396 | /* | |
2397 | * All of the following are for USG. | |
2398 | * | |
2399 | * On USG systems the system calls are INTERRUPTIBLE by signals | |
2400 | * that the user program has elected to catch. Thus the system call | |
2401 | * must be retried in these cases. To handle this without massive | |
2402 | * changes in the source code, we remap the standard system call names | |
2403 | * to names for our own functions in sysdep.c that do the system call | |
2404 | * with retries. Actually, for portability reasons, it is good | |
2405 | * programming practice, as this example shows, to limit all actual | |
eb8c3be9 | 2406 | * system calls to a single occurrence in the source. Sure, this |
86a5659e JB |
2407 | * adds an extra level of function call overhead but it is almost |
2408 | * always negligible. Fred Fish, Unisoft Systems Inc. | |
2409 | */ | |
2410 | ||
86a5659e JB |
2411 | /* |
2412 | * Warning, this function may not duplicate 4.2 action properly | |
2413 | * under error conditions. | |
2414 | */ | |
2415 | ||
2416 | #ifndef MAXPATHLEN | |
2417 | /* In 4.1, param.h fails to define this. */ | |
2418 | #define MAXPATHLEN 1024 | |
2419 | #endif | |
2420 | ||
2421 | #ifndef HAVE_GETWD | |
2422 | ||
2423 | char * | |
2424 | getwd (pathname) | |
2425 | char *pathname; | |
2426 | { | |
2427 | char *npath, *spath; | |
2428 | extern char *getcwd (); | |
2429 | ||
9ac0d9e0 | 2430 | BLOCK_INPUT; /* getcwd uses malloc */ |
86a5659e | 2431 | spath = npath = getcwd ((char *) 0, MAXPATHLEN); |
f4a7e5bd | 2432 | if (spath == 0) |
18b6bc73 GM |
2433 | { |
2434 | UNBLOCK_INPUT; | |
2435 | return spath; | |
2436 | } | |
86a5659e JB |
2437 | /* On Altos 3068, getcwd can return @hostname/dir, so discard |
2438 | up to first slash. Should be harmless on other systems. */ | |
2439 | while (*npath && *npath != '/') | |
2440 | npath++; | |
2441 | strcpy (pathname, npath); | |
2442 | free (spath); /* getcwd uses malloc */ | |
9ac0d9e0 | 2443 | UNBLOCK_INPUT; |
86a5659e JB |
2444 | return pathname; |
2445 | } | |
2446 | ||
2447 | #endif /* HAVE_GETWD */ | |
2448 | ||
2449 | /* | |
2450 | * Emulate rename using unlink/link. Note that this is | |
2451 | * only partially correct. Also, doesn't enforce restriction | |
2452 | * that files be of same type (regular->regular, dir->dir, etc). | |
2453 | */ | |
2454 | ||
4746118a JB |
2455 | #ifndef HAVE_RENAME |
2456 | ||
86a5659e | 2457 | rename (from, to) |
19c7afdf JB |
2458 | const char *from; |
2459 | const char *to; | |
86a5659e JB |
2460 | { |
2461 | if (access (from, 0) == 0) | |
2462 | { | |
2463 | unlink (to); | |
2464 | if (link (from, to) == 0) | |
2465 | if (unlink (from) == 0) | |
2466 | return (0); | |
2467 | } | |
2468 | return (-1); | |
2469 | } | |
2470 | ||
4746118a JB |
2471 | #endif |
2472 | ||
86a5659e | 2473 | |
69ab3201 | 2474 | #if defined(HPUX) && !defined(HAVE_PERROR) |
86a5659e JB |
2475 | |
2476 | /* HPUX curses library references perror, but as far as we know | |
2477 | it won't be called. Anyway this definition will do for now. */ | |
2478 | ||
2479 | perror () | |
2480 | { | |
2481 | } | |
69ab3201 | 2482 | #endif /* HPUX and not HAVE_PERROR */ |
86a5659e JB |
2483 | |
2484 | #ifndef HAVE_DUP2 | |
2485 | ||
2486 | /* | |
2487 | * Emulate BSD dup2. First close newd if it already exists. | |
2488 | * Then, attempt to dup oldd. If not successful, call dup2 recursively | |
2489 | * until we are, then close the unsuccessful ones. | |
2490 | */ | |
2491 | ||
2492 | dup2 (oldd, newd) | |
2493 | int oldd; | |
2494 | int newd; | |
2495 | { | |
2496 | register int fd, ret; | |
177c0ea7 | 2497 | |
68c45bf0 | 2498 | emacs_close (newd); |
86a5659e JB |
2499 | |
2500 | #ifdef F_DUPFD | |
68c45bf0 | 2501 | return fcntl (oldd, F_DUPFD, newd); |
86a5659e JB |
2502 | #else |
2503 | fd = dup (old); | |
2504 | if (fd == -1) | |
2505 | return -1; | |
2506 | if (fd == new) | |
2507 | return new; | |
2508 | ret = dup2 (old,new); | |
68c45bf0 | 2509 | emacs_close (fd); |
86a5659e JB |
2510 | return ret; |
2511 | #endif | |
2512 | } | |
2513 | ||
2514 | #endif /* not HAVE_DUP2 */ | |
2515 | ||
2516 | /* | |
2517 | * Gettimeofday. Simulate as much as possible. Only accurate | |
2518 | * to nearest second. Emacs doesn't use tzp so ignore it for now. | |
2519 | * Only needed when subprocesses are defined. | |
2520 | */ | |
2521 | ||
2522 | #ifdef subprocesses | |
86a5659e JB |
2523 | #ifndef HAVE_GETTIMEOFDAY |
2524 | #ifdef HAVE_TIMEVAL | |
177c0ea7 | 2525 | |
86a5659e | 2526 | /* ARGSUSED */ |
dfcf069d | 2527 | int |
86a5659e JB |
2528 | gettimeofday (tp, tzp) |
2529 | struct timeval *tp; | |
2530 | struct timezone *tzp; | |
2531 | { | |
2532 | extern long time (); | |
2533 | ||
177c0ea7 | 2534 | tp->tv_sec = time ((long *)0); |
86a5659e | 2535 | tp->tv_usec = 0; |
4ca7594f RS |
2536 | if (tzp != 0) |
2537 | tzp->tz_minuteswest = -1; | |
dfcf069d | 2538 | return 0; |
86a5659e | 2539 | } |
177c0ea7 | 2540 | |
86a5659e JB |
2541 | #endif |
2542 | #endif | |
7c2fb837 | 2543 | #endif /* subprocess && !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL */ |
177c0ea7 | 2544 | |
86a5659e JB |
2545 | /* |
2546 | * This function will go away as soon as all the stubs fixed. (fnf) | |
2547 | */ | |
2548 | ||
dfcf069d | 2549 | void |
971de7fb | 2550 | croak (char *badfunc) |
86a5659e JB |
2551 | { |
2552 | printf ("%s not yet implemented\r\n", badfunc); | |
28d440ab | 2553 | reset_all_sys_modes (); |
86a5659e JB |
2554 | exit (1); |
2555 | } | |
2556 | ||
2557 | #endif /* USG */ | |
2558 | \f | |
86a5659e JB |
2559 | /* Directory routines for systems that don't have them. */ |
2560 | ||
2561 | #ifdef SYSV_SYSTEM_DIR | |
2562 | ||
2563 | #include <dirent.h> | |
2564 | ||
9d9a7716 | 2565 | #if !defined (HAVE_CLOSEDIR) |
cfdc57af | 2566 | |
86a5659e | 2567 | int |
9d9a7716 | 2568 | closedir (DIR *dirp /* stream from opendir */) |
86a5659e | 2569 | { |
cfdc57af RS |
2570 | int rtnval; |
2571 | ||
68c45bf0 | 2572 | rtnval = emacs_close (dirp->dd_fd); |
9ac0d9e0 | 2573 | xfree ((char *) dirp); |
cfdc57af RS |
2574 | |
2575 | return rtnval; | |
86a5659e | 2576 | } |
9d9a7716 | 2577 | #endif /* not HAVE_CLOSEDIR */ |
86a5659e JB |
2578 | #endif /* SYSV_SYSTEM_DIR */ |
2579 | ||
23524fb9 | 2580 | \f |
53ea491a | 2581 | int |
971de7fb | 2582 | set_file_times (const char *filename, struct timeval atime, struct timeval mtime) |
53ea491a KH |
2583 | { |
2584 | #ifdef HAVE_UTIMES | |
2585 | struct timeval tv[2]; | |
2586 | tv[0] = atime; | |
2587 | tv[1] = mtime; | |
8334eb21 RS |
2588 | return utimes (filename, tv); |
2589 | #else /* not HAVE_UTIMES */ | |
53ea491a KH |
2590 | struct utimbuf utb; |
2591 | utb.actime = EMACS_SECS (atime); | |
2592 | utb.modtime = EMACS_SECS (mtime); | |
8334eb21 RS |
2593 | return utime (filename, &utb); |
2594 | #endif /* not HAVE_UTIMES */ | |
53ea491a KH |
2595 | } |
2596 | \f | |
23524fb9 JB |
2597 | /* mkdir and rmdir functions, for systems which don't have them. */ |
2598 | ||
2599 | #ifndef HAVE_MKDIR | |
2600 | /* | |
2601 | * Written by Robert Rother, Mariah Corporation, August 1985. | |
2602 | * | |
2603 | * If you want it, it's yours. All I ask in return is that if you | |
2604 | * figure out how to do this in a Bourne Shell script you send me | |
2605 | * a copy. | |
2606 | * sdcsvax!rmr or rmr@uscd | |
2607 | * | |
2608 | * Severely hacked over by John Gilmore to make a 4.2BSD compatible | |
db9cd97a | 2609 | * subroutine. 11Mar86; hoptoad!gnu |
23524fb9 JB |
2610 | * |
2611 | * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir, | |
2612 | * subroutine didn't return EEXIST. It does now. | |
2613 | */ | |
2614 | ||
2615 | /* | |
2616 | * Make a directory. | |
2617 | */ | |
2618 | int | |
2619 | mkdir (dpath, dmode) | |
2620 | char *dpath; | |
2621 | int dmode; | |
2622 | { | |
039f26a4 | 2623 | int cpid, status, fd; |
23524fb9 JB |
2624 | struct stat statbuf; |
2625 | ||
2626 | if (stat (dpath, &statbuf) == 0) | |
2627 | { | |
2628 | errno = EEXIST; /* Stat worked, so it already exists */ | |
2629 | return -1; | |
2630 | } | |
2631 | ||
2632 | /* If stat fails for a reason other than non-existence, return error */ | |
2633 | if (errno != ENOENT) | |
2634 | return -1; | |
2635 | ||
039f26a4 | 2636 | synch_process_alive = 1; |
23524fb9 JB |
2637 | switch (cpid = fork ()) |
2638 | { | |
2639 | ||
039f26a4 | 2640 | case -1: /* Error in fork */ |
23524fb9 JB |
2641 | return (-1); /* Errno is set already */ |
2642 | ||
2643 | case 0: /* Child process */ | |
2644 | /* | |
2645 | * Cheap hack to set mode of new directory. Since this | |
2646 | * child process is going away anyway, we zap its umask. | |
2647 | * FIXME, this won't suffice to set SUID, SGID, etc. on this | |
2648 | * directory. Does anybody care? | |
2649 | */ | |
2650 | status = umask (0); /* Get current umask */ | |
2651 | status = umask (status | (0777 & ~dmode)); /* Set for mkdir */ | |
68c45bf0 | 2652 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
2653 | if (fd >= 0) |
2654 | { | |
2655 | dup2 (fd, 0); | |
2656 | dup2 (fd, 1); | |
2657 | dup2 (fd, 2); | |
2658 | } | |
23524fb9 JB |
2659 | execl ("/bin/mkdir", "mkdir", dpath, (char *) 0); |
2660 | _exit (-1); /* Can't exec /bin/mkdir */ | |
2661 | ||
2662 | default: /* Parent process */ | |
039f26a4 | 2663 | wait_for_termination (cpid); |
23524fb9 JB |
2664 | } |
2665 | ||
6b0824c9 JD |
2666 | if (synch_process_death != 0 || synch_process_retcode != 0 |
2667 | || synch_process_termsig != 0) | |
23524fb9 JB |
2668 | { |
2669 | errno = EIO; /* We don't know why, but */ | |
2670 | return -1; /* /bin/mkdir failed */ | |
2671 | } | |
2672 | ||
2673 | return 0; | |
2674 | } | |
2675 | #endif /* not HAVE_MKDIR */ | |
2676 | ||
2677 | #ifndef HAVE_RMDIR | |
2678 | int | |
2679 | rmdir (dpath) | |
2680 | char *dpath; | |
2681 | { | |
039f26a4 | 2682 | int cpid, status, fd; |
23524fb9 JB |
2683 | struct stat statbuf; |
2684 | ||
2685 | if (stat (dpath, &statbuf) != 0) | |
2686 | { | |
2687 | /* Stat just set errno. We don't have to */ | |
2688 | return -1; | |
2689 | } | |
2690 | ||
039f26a4 | 2691 | synch_process_alive = 1; |
23524fb9 JB |
2692 | switch (cpid = fork ()) |
2693 | { | |
2694 | ||
039f26a4 | 2695 | case -1: /* Error in fork */ |
23524fb9 JB |
2696 | return (-1); /* Errno is set already */ |
2697 | ||
2698 | case 0: /* Child process */ | |
68c45bf0 | 2699 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
2700 | if (fd >= 0) |
2701 | { | |
2702 | dup2 (fd, 0); | |
2703 | dup2 (fd, 1); | |
2704 | dup2 (fd, 2); | |
2705 | } | |
f560db78 RS |
2706 | execl ("/bin/rmdir", "rmdir", dpath, (char *) 0); |
2707 | _exit (-1); /* Can't exec /bin/rmdir */ | |
2708 | ||
207bdbdb | 2709 | default: /* Parent process */ |
f560db78 | 2710 | wait_for_termination (cpid); |
23524fb9 JB |
2711 | } |
2712 | ||
6b0824c9 JD |
2713 | if (synch_process_death != 0 || synch_process_retcode != 0 |
2714 | || synch_process_termsig != 0) | |
23524fb9 JB |
2715 | { |
2716 | errno = EIO; /* We don't know why, but */ | |
f560db78 | 2717 | return -1; /* /bin/rmdir failed */ |
23524fb9 JB |
2718 | } |
2719 | ||
2720 | return 0; | |
2721 | } | |
2722 | #endif /* !HAVE_RMDIR */ | |
2723 | ||
86a5659e | 2724 | \f |
68c45bf0 PE |
2725 | #ifndef HAVE_STRSIGNAL |
2726 | char * | |
2727 | strsignal (code) | |
2728 | int code; | |
2729 | { | |
2730 | char *signame = 0; | |
2731 | ||
2732 | if (0 <= code && code < NSIG) | |
2733 | { | |
68c45bf0 PE |
2734 | /* Cast to suppress warning if the table has const char *. */ |
2735 | signame = (char *) sys_siglist[code]; | |
68c45bf0 | 2736 | } |
c4ea52a6 | 2737 | |
68c45bf0 PE |
2738 | return signame; |
2739 | } | |
2740 | #endif /* HAVE_STRSIGNAL */ | |
d888760c GM |
2741 | \f |
2742 | #ifdef HAVE_TERMIOS | |
2743 | /* For make-serial-process */ | |
2744 | int serial_open (char *port) | |
2745 | { | |
2746 | int fd = -1; | |
2747 | ||
2748 | fd = emacs_open ((char*) port, | |
2749 | O_RDWR | |
2750 | #ifdef O_NONBLOCK | |
2751 | | O_NONBLOCK | |
2752 | #else | |
2753 | | O_NDELAY | |
2754 | #endif | |
2755 | #ifdef O_NOCTTY | |
2756 | | O_NOCTTY | |
2757 | #endif | |
2758 | , 0); | |
2759 | if (fd < 0) | |
2760 | { | |
2761 | error ("Could not open %s: %s", | |
2762 | port, emacs_strerror (errno)); | |
2763 | } | |
2764 | #ifdef TIOCEXCL | |
2765 | ioctl (fd, TIOCEXCL, (char *) 0); | |
2766 | #endif | |
2767 | ||
2768 | return fd; | |
2769 | } | |
2770 | #endif /* TERMIOS */ | |
2771 | ||
2772 | #ifdef HAVE_TERMIOS | |
759d3f32 SM |
2773 | |
2774 | #if !defined (HAVE_CFMAKERAW) | |
2775 | /* Workaround for targets which are missing cfmakeraw. */ | |
2776 | /* Pasted from man page. */ | |
2777 | static void cfmakeraw (struct termios *termios_p) | |
2778 | { | |
2779 | termios_p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); | |
2780 | termios_p->c_oflag &= ~OPOST; | |
2781 | termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); | |
2782 | termios_p->c_cflag &= ~(CSIZE|PARENB); | |
2783 | termios_p->c_cflag |= CS8; | |
2784 | } | |
2785 | #endif /* !defined (HAVE_CFMAKERAW */ | |
2786 | ||
2787 | #if !defined (HAVE_CFSETSPEED) | |
2788 | /* Workaround for targets which are missing cfsetspeed. */ | |
2789 | static int cfsetspeed (struct termios *termios_p, speed_t vitesse) | |
2790 | { | |
2791 | return (cfsetispeed (termios_p, vitesse) | |
2792 | + cfsetospeed (termios_p, vitesse)); | |
2793 | } | |
2794 | #endif | |
2795 | ||
d888760c GM |
2796 | /* For serial-process-configure */ |
2797 | void | |
2798 | serial_configure (struct Lisp_Process *p, | |
2799 | Lisp_Object contact) | |
2800 | { | |
2801 | Lisp_Object childp2 = Qnil; | |
2802 | Lisp_Object tem = Qnil; | |
2803 | struct termios attr; | |
2804 | int err = -1; | |
2805 | char summary[4] = "???"; /* This usually becomes "8N1". */ | |
2806 | ||
2807 | childp2 = Fcopy_sequence (p->childp); | |
2808 | ||
2809 | /* Read port attributes and prepare default configuration. */ | |
2810 | err = tcgetattr (p->outfd, &attr); | |
2811 | if (err != 0) | |
2812 | error ("tcgetattr() failed: %s", emacs_strerror (errno)); | |
2813 | cfmakeraw (&attr); | |
2814 | #if defined (CLOCAL) | |
2815 | attr.c_cflag |= CLOCAL; | |
2816 | #endif | |
2817 | #if defined (CREAD) | |
6d1921be | 2818 | attr.c_cflag |= CREAD; |
d888760c GM |
2819 | #endif |
2820 | ||
2821 | /* Configure speed. */ | |
2822 | if (!NILP (Fplist_member (contact, QCspeed))) | |
2823 | tem = Fplist_get (contact, QCspeed); | |
2824 | else | |
2825 | tem = Fplist_get (p->childp, QCspeed); | |
2826 | CHECK_NUMBER (tem); | |
2827 | err = cfsetspeed (&attr, XINT (tem)); | |
2828 | if (err != 0) | |
2829 | error ("cfsetspeed(%d) failed: %s", XINT (tem), emacs_strerror (errno)); | |
2830 | childp2 = Fplist_put (childp2, QCspeed, tem); | |
2831 | ||
2832 | /* Configure bytesize. */ | |
2833 | if (!NILP (Fplist_member (contact, QCbytesize))) | |
2834 | tem = Fplist_get (contact, QCbytesize); | |
2835 | else | |
2836 | tem = Fplist_get (p->childp, QCbytesize); | |
2837 | if (NILP (tem)) | |
2838 | tem = make_number (8); | |
2839 | CHECK_NUMBER (tem); | |
2840 | if (XINT (tem) != 7 && XINT (tem) != 8) | |
2841 | error (":bytesize must be nil (8), 7, or 8"); | |
2842 | summary[0] = XINT(tem) + '0'; | |
2843 | #if defined (CSIZE) && defined (CS7) && defined (CS8) | |
2844 | attr.c_cflag &= ~CSIZE; | |
2845 | attr.c_cflag |= ((XINT (tem) == 7) ? CS7 : CS8); | |
2846 | #else | |
16bad4dd | 2847 | /* Don't error on bytesize 8, which should be set by cfmakeraw. */ |
d888760c GM |
2848 | if (XINT (tem) != 8) |
2849 | error ("Bytesize cannot be changed"); | |
2850 | #endif | |
2851 | childp2 = Fplist_put (childp2, QCbytesize, tem); | |
2852 | ||
2853 | /* Configure parity. */ | |
2854 | if (!NILP (Fplist_member (contact, QCparity))) | |
2855 | tem = Fplist_get (contact, QCparity); | |
2856 | else | |
2857 | tem = Fplist_get (p->childp, QCparity); | |
2858 | if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd)) | |
2859 | error (":parity must be nil (no parity), `even', or `odd'"); | |
2860 | #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK) | |
2861 | attr.c_cflag &= ~(PARENB | PARODD); | |
2862 | attr.c_iflag &= ~(IGNPAR | INPCK); | |
2863 | if (NILP (tem)) | |
2864 | { | |
2865 | summary[1] = 'N'; | |
2866 | } | |
2867 | else if (EQ (tem, Qeven)) | |
2868 | { | |
2869 | summary[1] = 'E'; | |
2870 | attr.c_cflag |= PARENB; | |
2871 | attr.c_iflag |= (IGNPAR | INPCK); | |
2872 | } | |
2873 | else if (EQ (tem, Qodd)) | |
2874 | { | |
2875 | summary[1] = 'O'; | |
2876 | attr.c_cflag |= (PARENB | PARODD); | |
2877 | attr.c_iflag |= (IGNPAR | INPCK); | |
2878 | } | |
2879 | #else | |
16bad4dd | 2880 | /* Don't error on no parity, which should be set by cfmakeraw. */ |
d888760c GM |
2881 | if (!NILP (tem)) |
2882 | error ("Parity cannot be configured"); | |
2883 | #endif | |
2884 | childp2 = Fplist_put (childp2, QCparity, tem); | |
2885 | ||
2886 | /* Configure stopbits. */ | |
2887 | if (!NILP (Fplist_member (contact, QCstopbits))) | |
2888 | tem = Fplist_get (contact, QCstopbits); | |
2889 | else | |
2890 | tem = Fplist_get (p->childp, QCstopbits); | |
2891 | if (NILP (tem)) | |
2892 | tem = make_number (1); | |
2893 | CHECK_NUMBER (tem); | |
2894 | if (XINT (tem) != 1 && XINT (tem) != 2) | |
2895 | error (":stopbits must be nil (1 stopbit), 1, or 2"); | |
2896 | summary[2] = XINT (tem) + '0'; | |
2897 | #if defined (CSTOPB) | |
2898 | attr.c_cflag &= ~CSTOPB; | |
2899 | if (XINT (tem) == 2) | |
2900 | attr.c_cflag |= CSTOPB; | |
2901 | #else | |
16bad4dd | 2902 | /* Don't error on 1 stopbit, which should be set by cfmakeraw. */ |
d888760c GM |
2903 | if (XINT (tem) != 1) |
2904 | error ("Stopbits cannot be configured"); | |
2905 | #endif | |
2906 | childp2 = Fplist_put (childp2, QCstopbits, tem); | |
2907 | ||
2908 | /* Configure flowcontrol. */ | |
2909 | if (!NILP (Fplist_member (contact, QCflowcontrol))) | |
2910 | tem = Fplist_get (contact, QCflowcontrol); | |
2911 | else | |
2912 | tem = Fplist_get (p->childp, QCflowcontrol); | |
2913 | if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw)) | |
2914 | error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'"); | |
2915 | #if defined (CRTSCTS) | |
2916 | attr.c_cflag &= ~CRTSCTS; | |
2917 | #endif | |
2918 | #if defined (CNEW_RTSCTS) | |
2919 | attr.c_cflag &= ~CNEW_RTSCTS; | |
2920 | #endif | |
2921 | #if defined (IXON) && defined (IXOFF) | |
2922 | attr.c_iflag &= ~(IXON | IXOFF); | |
2923 | #endif | |
2924 | if (NILP (tem)) | |
2925 | { | |
2926 | /* Already configured. */ | |
2927 | } | |
2928 | else if (EQ (tem, Qhw)) | |
2929 | { | |
2930 | #if defined (CRTSCTS) | |
2931 | attr.c_cflag |= CRTSCTS; | |
2932 | #elif defined (CNEW_RTSCTS) | |
2933 | attr.c_cflag |= CNEW_RTSCTS; | |
2934 | #else | |
2935 | error ("Hardware flowcontrol (RTS/CTS) not supported"); | |
2936 | #endif | |
2937 | } | |
2938 | else if (EQ (tem, Qsw)) | |
2939 | { | |
2940 | #if defined (IXON) && defined (IXOFF) | |
2941 | attr.c_iflag |= (IXON | IXOFF); | |
2942 | #else | |
2943 | error ("Software flowcontrol (XON/XOFF) not supported"); | |
2944 | #endif | |
2945 | } | |
2946 | childp2 = Fplist_put (childp2, QCflowcontrol, tem); | |
2947 | ||
2948 | /* Activate configuration. */ | |
2949 | err = tcsetattr (p->outfd, TCSANOW, &attr); | |
2950 | if (err != 0) | |
2951 | error ("tcsetattr() failed: %s", emacs_strerror (errno)); | |
2952 | ||
2953 | childp2 = Fplist_put (childp2, QCsummary, build_string (summary)); | |
2954 | p->childp = childp2; | |
2955 | ||
2956 | } | |
2957 | #endif /* TERMIOS */ | |
06e111a6 DN |
2958 | \f |
2959 | /* System depended enumeration of and access to system processes a-la ps(1). */ | |
2960 | ||
2961 | #ifdef HAVE_PROCFS | |
2962 | ||
2963 | /* Process enumeration and access via /proc. */ | |
2964 | ||
2965 | Lisp_Object | |
971de7fb | 2966 | list_system_processes (void) |
06e111a6 DN |
2967 | { |
2968 | Lisp_Object procdir, match, proclist, next; | |
2969 | struct gcpro gcpro1, gcpro2; | |
2970 | register Lisp_Object tail; | |
2971 | ||
2972 | GCPRO2 (procdir, match); | |
2973 | /* For every process on the system, there's a directory in the | |
2974 | "/proc" pseudo-directory whose name is the numeric ID of that | |
2975 | process. */ | |
2976 | procdir = build_string ("/proc"); | |
2977 | match = build_string ("[0-9]+"); | |
2978 | proclist = directory_files_internal (procdir, Qnil, match, Qt, 0, Qnil); | |
2979 | ||
2980 | /* `proclist' gives process IDs as strings. Destructively convert | |
2981 | each string into a number. */ | |
2982 | for (tail = proclist; CONSP (tail); tail = next) | |
2983 | { | |
2984 | next = XCDR (tail); | |
2985 | XSETCAR (tail, Fstring_to_number (XCAR (tail), Qnil)); | |
2986 | } | |
2987 | UNGCPRO; | |
2988 | ||
2989 | /* directory_files_internal returns the files in reverse order; undo | |
2990 | that. */ | |
2991 | proclist = Fnreverse (proclist); | |
2992 | return proclist; | |
2993 | } | |
2994 | ||
f8d23104 DN |
2995 | /* The WINDOWSNT implementation is in w32.c. |
2996 | The MSDOS implementation is in dosfns.c. */ | |
c4605e09 | 2997 | #elif !defined (WINDOWSNT) && !defined (MSDOS) |
06e111a6 DN |
2998 | |
2999 | Lisp_Object | |
3000 | list_system_processes () | |
3001 | { | |
3002 | return Qnil; | |
3003 | } | |
91c85b70 EZ |
3004 | |
3005 | #endif /* !defined (WINDOWSNT) */ | |
06e111a6 DN |
3006 | |
3007 | #ifdef GNU_LINUX | |
3008 | static void | |
3009 | time_from_jiffies (unsigned long long tval, long hz, | |
3010 | time_t *sec, unsigned *usec) | |
3011 | { | |
3012 | unsigned long long ullsec; | |
3013 | ||
3014 | *sec = tval / hz; | |
3015 | ullsec = *sec; | |
3016 | tval -= ullsec * hz; | |
3017 | /* Careful: if HZ > 1 million, then integer division by it yields zero. */ | |
3018 | if (hz <= 1000000) | |
3019 | *usec = tval * 1000000 / hz; | |
3020 | else | |
3021 | *usec = tval / (hz / 1000000); | |
3022 | } | |
3023 | ||
3024 | static Lisp_Object | |
3025 | ltime_from_jiffies (unsigned long long tval, long hz) | |
3026 | { | |
3027 | time_t sec; | |
3028 | unsigned usec; | |
3029 | ||
3030 | time_from_jiffies (tval, hz, &sec, &usec); | |
3031 | ||
3032 | return list3 (make_number ((sec >> 16) & 0xffff), | |
3033 | make_number (sec & 0xffff), | |
3034 | make_number (usec)); | |
3035 | } | |
3036 | ||
3037 | static void | |
3038 | get_up_time (time_t *sec, unsigned *usec) | |
3039 | { | |
3040 | FILE *fup; | |
3041 | ||
3042 | *sec = *usec = 0; | |
3043 | ||
3044 | BLOCK_INPUT; | |
3045 | fup = fopen ("/proc/uptime", "r"); | |
3046 | ||
3047 | if (fup) | |
3048 | { | |
3049 | double uptime, idletime; | |
3050 | ||
3051 | /* The numbers in /proc/uptime use C-locale decimal point, but | |
3052 | we already set ourselves to the C locale (see `fixup_locale' | |
3053 | in emacs.c). */ | |
3054 | if (2 <= fscanf (fup, "%lf %lf", &uptime, &idletime)) | |
3055 | { | |
3056 | *sec = uptime; | |
3057 | *usec = (uptime - *sec) * 1000000; | |
3058 | } | |
3059 | fclose (fup); | |
3060 | } | |
3061 | UNBLOCK_INPUT; | |
3062 | } | |
3063 | ||
3064 | #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff) | |
3065 | #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12)) | |
3066 | ||
3067 | static Lisp_Object | |
f4f634e8 | 3068 | procfs_ttyname (int rdev) |
06e111a6 DN |
3069 | { |
3070 | FILE *fdev = NULL; | |
3071 | char name[PATH_MAX]; | |
3072 | ||
3073 | BLOCK_INPUT; | |
3074 | fdev = fopen ("/proc/tty/drivers", "r"); | |
3075 | ||
3076 | if (fdev) | |
3077 | { | |
3078 | unsigned major; | |
3079 | unsigned long minor_beg, minor_end; | |
3080 | char minor[25]; /* 2 32-bit numbers + dash */ | |
3081 | char *endp; | |
3082 | ||
3083 | while (!feof (fdev) && !ferror (fdev)) | |
3084 | { | |
3085 | if (3 <= fscanf (fdev, "%*s %s %u %s %*s\n", name, &major, minor) | |
3086 | && major == MAJOR (rdev)) | |
3087 | { | |
3088 | minor_beg = strtoul (minor, &endp, 0); | |
3089 | if (*endp == '\0') | |
3090 | minor_end = minor_beg; | |
3091 | else if (*endp == '-') | |
3092 | minor_end = strtoul (endp + 1, &endp, 0); | |
3093 | else | |
3094 | continue; | |
3095 | ||
3096 | if (MINOR (rdev) >= minor_beg && MINOR (rdev) <= minor_end) | |
3097 | { | |
10d66ec0 | 3098 | sprintf (name + strlen (name), "%u", MINOR (rdev)); |
06e111a6 DN |
3099 | break; |
3100 | } | |
3101 | } | |
3102 | } | |
3103 | fclose (fdev); | |
3104 | } | |
3105 | UNBLOCK_INPUT; | |
3106 | return build_string (name); | |
3107 | } | |
3108 | ||
3109 | static unsigned long | |
3110 | procfs_get_total_memory (void) | |
3111 | { | |
3112 | FILE *fmem = NULL; | |
3113 | unsigned long retval = 2 * 1024 * 1024; /* default: 2GB */ | |
3114 | ||
3115 | BLOCK_INPUT; | |
3116 | fmem = fopen ("/proc/meminfo", "r"); | |
3117 | ||
3118 | if (fmem) | |
3119 | { | |
3120 | unsigned long entry_value; | |
3121 | char entry_name[20]; /* the longest I saw is 13+1 */ | |
3122 | ||
3123 | while (!feof (fmem) && !ferror (fmem)) | |
3124 | { | |
3125 | if (2 <= fscanf (fmem, "%s %lu kB\n", entry_name, &entry_value) | |
3126 | && strcmp (entry_name, "MemTotal:") == 0) | |
3127 | { | |
3128 | retval = entry_value; | |
3129 | break; | |
3130 | } | |
3131 | } | |
3132 | fclose (fmem); | |
3133 | } | |
3134 | UNBLOCK_INPUT; | |
3135 | return retval; | |
3136 | } | |
3137 | ||
3138 | Lisp_Object | |
f4f634e8 | 3139 | system_process_attributes (Lisp_Object pid) |
06e111a6 DN |
3140 | { |
3141 | char procfn[PATH_MAX], fn[PATH_MAX]; | |
3142 | struct stat st; | |
3143 | struct passwd *pw; | |
3144 | struct group *gr; | |
3145 | long clocks_per_sec; | |
3146 | char *procfn_end; | |
3147 | char procbuf[1025], *p, *q; | |
3148 | int fd; | |
3149 | ssize_t nread; | |
3150 | const char *cmd = NULL; | |
3151 | char *cmdline = NULL; | |
3152 | size_t cmdsize = 0, cmdline_size; | |
3153 | unsigned char c; | |
3154 | int proc_id, ppid, uid, gid, pgrp, sess, tty, tpgid, thcount; | |
3155 | unsigned long long utime, stime, cutime, cstime, start; | |
3156 | long priority, nice, rss; | |
3157 | unsigned long minflt, majflt, cminflt, cmajflt, vsize; | |
3158 | time_t sec; | |
3159 | unsigned usec; | |
2b0a91e7 | 3160 | EMACS_TIME tnow, tstart, tboot, telapsed; |
06e111a6 DN |
3161 | double pcpu, pmem; |
3162 | Lisp_Object attrs = Qnil; | |
3163 | Lisp_Object cmd_str, decoded_cmd, tem; | |
3164 | struct gcpro gcpro1, gcpro2; | |
3165 | EMACS_INT uid_eint, gid_eint; | |
3166 | ||
3167 | CHECK_NUMBER_OR_FLOAT (pid); | |
3168 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
10d66ec0 | 3169 | sprintf (procfn, "/proc/%u", proc_id); |
06e111a6 DN |
3170 | if (stat (procfn, &st) < 0) |
3171 | return attrs; | |
3172 | ||
3173 | GCPRO2 (attrs, decoded_cmd); | |
3174 | ||
3175 | /* euid egid */ | |
3176 | uid = st.st_uid; | |
3177 | /* Use of EMACS_INT stops GCC whining about limited range of data type. */ | |
3178 | uid_eint = uid; | |
3179 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid_eint)), attrs); | |
3180 | BLOCK_INPUT; | |
3181 | pw = getpwuid (uid); | |
3182 | UNBLOCK_INPUT; | |
3183 | if (pw) | |
3184 | attrs = Fcons (Fcons (Quser, build_string (pw->pw_name)), attrs); | |
3185 | ||
3186 | gid = st.st_gid; | |
3187 | gid_eint = gid; | |
3188 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid_eint)), attrs); | |
3189 | BLOCK_INPUT; | |
3190 | gr = getgrgid (gid); | |
3191 | UNBLOCK_INPUT; | |
3192 | if (gr) | |
3193 | attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs); | |
3194 | ||
3195 | strcpy (fn, procfn); | |
3196 | procfn_end = fn + strlen (fn); | |
3197 | strcpy (procfn_end, "/stat"); | |
3198 | fd = emacs_open (fn, O_RDONLY, 0); | |
3199 | if (fd >= 0 && (nread = emacs_read (fd, procbuf, sizeof(procbuf) - 1)) > 0) | |
3200 | { | |
3201 | procbuf[nread] = '\0'; | |
3202 | p = procbuf; | |
3203 | ||
3204 | p = strchr (p, '('); | |
3205 | if (p != NULL) | |
3206 | { | |
3207 | q = strrchr (p + 1, ')'); | |
3208 | /* comm */ | |
3209 | if (q != NULL) | |
3210 | { | |
3211 | cmd = p + 1; | |
3212 | cmdsize = q - cmd; | |
3213 | } | |
3214 | } | |
3215 | else | |
3216 | q = NULL; | |
3217 | if (cmd == NULL) | |
3218 | { | |
3219 | cmd = "???"; | |
3220 | cmdsize = 3; | |
3221 | } | |
3222 | /* Command name is encoded in locale-coding-system; decode it. */ | |
3223 | cmd_str = make_unibyte_string (cmd, cmdsize); | |
3224 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
3225 | Vlocale_coding_system, 0); | |
3226 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
3227 | ||
3228 | if (q) | |
3229 | { | |
3230 | EMACS_INT ppid_eint, pgrp_eint, sess_eint, tpgid_eint, thcount_eint; | |
3231 | p = q + 2; | |
3232 | /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */ | |
3233 | sscanf (p, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld", | |
3234 | &c, &ppid, &pgrp, &sess, &tty, &tpgid, | |
3235 | &minflt, &cminflt, &majflt, &cmajflt, | |
3236 | &utime, &stime, &cutime, &cstime, | |
3237 | &priority, &nice, &thcount, &start, &vsize, &rss); | |
3238 | { | |
3239 | char state_str[2]; | |
3240 | ||
3241 | state_str[0] = c; | |
3242 | state_str[1] = '\0'; | |
3243 | tem = build_string (state_str); | |
3244 | attrs = Fcons (Fcons (Qstate, tem), attrs); | |
3245 | } | |
3246 | /* Stops GCC whining about limited range of data type. */ | |
3247 | ppid_eint = ppid; | |
3248 | pgrp_eint = pgrp; | |
3249 | sess_eint = sess; | |
3250 | tpgid_eint = tpgid; | |
3251 | thcount_eint = thcount; | |
3252 | attrs = Fcons (Fcons (Qppid, make_fixnum_or_float (ppid_eint)), attrs); | |
3253 | attrs = Fcons (Fcons (Qpgrp, make_fixnum_or_float (pgrp_eint)), attrs); | |
3254 | attrs = Fcons (Fcons (Qsess, make_fixnum_or_float (sess_eint)), attrs); | |
3255 | attrs = Fcons (Fcons (Qttname, procfs_ttyname (tty)), attrs); | |
3256 | attrs = Fcons (Fcons (Qtpgid, make_fixnum_or_float (tpgid_eint)), attrs); | |
3257 | attrs = Fcons (Fcons (Qminflt, make_fixnum_or_float (minflt)), attrs); | |
3258 | attrs = Fcons (Fcons (Qmajflt, make_fixnum_or_float (majflt)), attrs); | |
3259 | attrs = Fcons (Fcons (Qcminflt, make_fixnum_or_float (cminflt)), attrs); | |
3260 | attrs = Fcons (Fcons (Qcmajflt, make_fixnum_or_float (cmajflt)), attrs); | |
3261 | clocks_per_sec = sysconf (_SC_CLK_TCK); | |
3262 | if (clocks_per_sec < 0) | |
3263 | clocks_per_sec = 100; | |
3264 | attrs = Fcons (Fcons (Qutime, | |
3265 | ltime_from_jiffies (utime, clocks_per_sec)), | |
3266 | attrs); | |
3267 | attrs = Fcons (Fcons (Qstime, | |
3268 | ltime_from_jiffies (stime, clocks_per_sec)), | |
3269 | attrs); | |
ac1e4171 EZ |
3270 | attrs = Fcons (Fcons (Qtime, |
3271 | ltime_from_jiffies (stime+utime, clocks_per_sec)), | |
3272 | attrs); | |
06e111a6 DN |
3273 | attrs = Fcons (Fcons (Qcutime, |
3274 | ltime_from_jiffies (cutime, clocks_per_sec)), | |
3275 | attrs); | |
3276 | attrs = Fcons (Fcons (Qcstime, | |
3277 | ltime_from_jiffies (cstime, clocks_per_sec)), | |
ac1e4171 EZ |
3278 | attrs); |
3279 | attrs = Fcons (Fcons (Qctime, | |
3280 | ltime_from_jiffies (cstime+cutime, clocks_per_sec)), | |
06e111a6 DN |
3281 | attrs); |
3282 | attrs = Fcons (Fcons (Qpri, make_number (priority)), attrs); | |
3283 | attrs = Fcons (Fcons (Qnice, make_number (nice)), attrs); | |
3284 | attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (thcount_eint)), attrs); | |
3285 | EMACS_GET_TIME (tnow); | |
3286 | get_up_time (&sec, &usec); | |
3287 | EMACS_SET_SECS (telapsed, sec); | |
3288 | EMACS_SET_USECS (telapsed, usec); | |
3289 | EMACS_SUB_TIME (tboot, tnow, telapsed); | |
3290 | time_from_jiffies (start, clocks_per_sec, &sec, &usec); | |
3291 | EMACS_SET_SECS (tstart, sec); | |
3292 | EMACS_SET_USECS (tstart, usec); | |
3293 | EMACS_ADD_TIME (tstart, tboot, tstart); | |
3294 | attrs = Fcons (Fcons (Qstart, | |
3295 | list3 (make_number | |
3296 | ((EMACS_SECS (tstart) >> 16) & 0xffff), | |
3297 | make_number | |
3298 | (EMACS_SECS (tstart) & 0xffff), | |
3299 | make_number | |
3300 | (EMACS_USECS (tstart)))), | |
3301 | attrs); | |
3302 | attrs = Fcons (Fcons (Qvsize, make_fixnum_or_float (vsize/1024)), attrs); | |
3303 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (4*rss)), attrs); | |
3304 | EMACS_SUB_TIME (telapsed, tnow, tstart); | |
3305 | attrs = Fcons (Fcons (Qetime, | |
3306 | list3 (make_number | |
3307 | ((EMACS_SECS (telapsed) >> 16) & 0xffff), | |
3308 | make_number | |
3309 | (EMACS_SECS (telapsed) & 0xffff), | |
3310 | make_number | |
3311 | (EMACS_USECS (telapsed)))), | |
3312 | attrs); | |
3313 | time_from_jiffies (utime + stime, clocks_per_sec, &sec, &usec); | |
3314 | pcpu = (sec + usec / 1000000.0) / (EMACS_SECS (telapsed) + EMACS_USECS (telapsed) / 1000000.0); | |
3315 | if (pcpu > 1.0) | |
3316 | pcpu = 1.0; | |
3317 | attrs = Fcons (Fcons (Qpcpu, make_float (100 * pcpu)), attrs); | |
3318 | pmem = 4.0 * 100 * rss / procfs_get_total_memory (); | |
3319 | if (pmem > 100) | |
3320 | pmem = 100; | |
3321 | attrs = Fcons (Fcons (Qpmem, make_float (pmem)), attrs); | |
3322 | } | |
3323 | } | |
3324 | if (fd >= 0) | |
3325 | emacs_close (fd); | |
3326 | ||
3327 | /* args */ | |
3328 | strcpy (procfn_end, "/cmdline"); | |
3329 | fd = emacs_open (fn, O_RDONLY, 0); | |
3330 | if (fd >= 0) | |
3331 | { | |
3332 | for (cmdline_size = 0; emacs_read (fd, &c, 1) == 1; cmdline_size++) | |
3333 | { | |
3334 | if (isspace (c) || c == '\\') | |
3335 | cmdline_size++; /* for later quoting, see below */ | |
3336 | } | |
3337 | if (cmdline_size) | |
3338 | { | |
3339 | cmdline = xmalloc (cmdline_size + 1); | |
3340 | lseek (fd, 0L, SEEK_SET); | |
3341 | cmdline[0] = '\0'; | |
3342 | if ((nread = read (fd, cmdline, cmdline_size)) >= 0) | |
3343 | cmdline[nread++] = '\0'; | |
3344 | else | |
3345 | { | |
3346 | /* Assigning zero to `nread' makes us skip the following | |
3347 | two loops, assign zero to cmdline_size, and enter the | |
3348 | following `if' clause that handles unknown command | |
3349 | lines. */ | |
3350 | nread = 0; | |
3351 | } | |
3352 | /* We don't want trailing null characters. */ | |
3353 | for (p = cmdline + nread - 1; p > cmdline && !*p; p--) | |
3354 | nread--; | |
3355 | for (p = cmdline; p < cmdline + nread; p++) | |
3356 | { | |
3357 | /* Escape-quote whitespace and backslashes. */ | |
3358 | if (isspace (*p) || *p == '\\') | |
3359 | { | |
3360 | memmove (p + 1, p, nread - (p - cmdline)); | |
3361 | nread++; | |
3362 | *p++ = '\\'; | |
3363 | } | |
3364 | else if (*p == '\0') | |
3365 | *p = ' '; | |
3366 | } | |
3367 | cmdline_size = nread; | |
3368 | } | |
3369 | if (!cmdline_size) | |
3370 | { | |
3371 | if (!cmd) | |
3372 | cmd = "???"; | |
3373 | if (!cmdsize) | |
3374 | cmdsize = strlen (cmd); | |
3375 | cmdline_size = cmdsize + 2; | |
3376 | cmdline = xmalloc (cmdline_size + 1); | |
3377 | strcpy (cmdline, "["); | |
3378 | strcat (strncat (cmdline, cmd, cmdsize), "]"); | |
3379 | } | |
3380 | emacs_close (fd); | |
3381 | /* Command line is encoded in locale-coding-system; decode it. */ | |
3382 | cmd_str = make_unibyte_string (cmdline, cmdline_size); | |
3383 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
3384 | Vlocale_coding_system, 0); | |
3385 | xfree (cmdline); | |
3386 | attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs); | |
3387 | } | |
3388 | ||
3389 | UNGCPRO; | |
3390 | return attrs; | |
3391 | } | |
91c85b70 | 3392 | |
f4f634e8 DN |
3393 | #elif defined (SOLARIS2) && defined (HAVE_PROCFS) |
3394 | ||
3395 | /* The <procfs.h> header does not like to be included if _LP64 is defined and | |
3396 | __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */ | |
3397 | #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64) | |
3398 | #define PROCFS_FILE_OFFSET_BITS_HACK 1 | |
3399 | #undef _FILE_OFFSET_BITS | |
3400 | #else | |
3401 | #define PROCFS_FILE_OFFSET_BITS_HACK 0 | |
3402 | #endif | |
3403 | ||
3404 | #include <procfs.h> | |
3405 | ||
3406 | #if PROCFS_FILE_OFFSET_BITS_HACK == 1 | |
3407 | #define _FILE_OFFSET_BITS 64 | |
3408 | #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */ | |
3409 | ||
3410 | Lisp_Object | |
3411 | system_process_attributes (Lisp_Object pid) | |
3412 | { | |
3413 | char procfn[PATH_MAX], fn[PATH_MAX]; | |
3414 | struct stat st; | |
3415 | struct passwd *pw; | |
3416 | struct group *gr; | |
3417 | char *procfn_end; | |
3418 | struct psinfo pinfo; | |
3419 | int fd; | |
3420 | ssize_t nread; | |
3421 | int proc_id, uid, gid; | |
3422 | Lisp_Object attrs = Qnil; | |
3423 | Lisp_Object decoded_cmd, tem; | |
3424 | struct gcpro gcpro1, gcpro2; | |
3425 | EMACS_INT uid_eint, gid_eint; | |
3426 | ||
3427 | CHECK_NUMBER_OR_FLOAT (pid); | |
3428 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
3429 | sprintf (procfn, "/proc/%u", proc_id); | |
3430 | if (stat (procfn, &st) < 0) | |
3431 | return attrs; | |
3432 | ||
3433 | GCPRO2 (attrs, decoded_cmd); | |
3434 | ||
3435 | /* euid egid */ | |
3436 | uid = st.st_uid; | |
3437 | /* Use of EMACS_INT stops GCC whining about limited range of data type. */ | |
3438 | uid_eint = uid; | |
3439 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid_eint)), attrs); | |
3440 | BLOCK_INPUT; | |
3441 | pw = getpwuid (uid); | |
3442 | UNBLOCK_INPUT; | |
3443 | if (pw) | |
3444 | attrs = Fcons (Fcons (Quser, build_string (pw->pw_name)), attrs); | |
3445 | ||
3446 | gid = st.st_gid; | |
3447 | gid_eint = gid; | |
3448 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid_eint)), attrs); | |
3449 | BLOCK_INPUT; | |
3450 | gr = getgrgid (gid); | |
3451 | UNBLOCK_INPUT; | |
3452 | if (gr) | |
3453 | attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs); | |
3454 | ||
3455 | strcpy (fn, procfn); | |
3456 | procfn_end = fn + strlen (fn); | |
3457 | strcpy (procfn_end, "/psinfo"); | |
3458 | fd = emacs_open (fn, O_RDONLY, 0); | |
3459 | if (fd >= 0 | |
3460 | && (nread = read (fd, (char*)&pinfo, sizeof(struct psinfo)) > 0)) | |
3461 | { | |
3462 | attrs = Fcons (Fcons (Qppid, make_fixnum_or_float (pinfo.pr_ppid)), attrs); | |
3463 | attrs = Fcons (Fcons (Qpgrp, make_fixnum_or_float (pinfo.pr_pgid)), attrs); | |
3464 | attrs = Fcons (Fcons (Qsess, make_fixnum_or_float (pinfo.pr_sid)), attrs); | |
3465 | ||
3466 | { | |
3467 | char state_str[2]; | |
3468 | state_str[0] = pinfo.pr_lwp.pr_sname; | |
3469 | state_str[1] = '\0'; | |
3470 | tem = build_string (state_str); | |
3471 | attrs = Fcons (Fcons (Qstate, tem), attrs); | |
3472 | } | |
3473 | ||
3474 | /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t, | |
3475 | need to get a string from it. */ | |
3476 | ||
3477 | /* FIXME: missing: Qtpgid */ | |
3478 | ||
3479 | /* FIXME: missing: | |
3480 | Qminflt | |
3481 | Qmajflt | |
3482 | Qcminflt | |
3483 | Qcmajflt | |
3484 | ||
bfe11752 DN |
3485 | Qutime |
3486 | Qcutime | |
f4f634e8 DN |
3487 | Qstime |
3488 | Qcstime | |
3489 | Are they available? */ | |
3490 | ||
bfe11752 | 3491 | attrs = Fcons (Fcons (Qtime, |
f4f634e8 DN |
3492 | list3 (make_number (pinfo.pr_time.tv_sec >> 16), |
3493 | make_number (pinfo.pr_time.tv_sec & 0xffff), | |
3494 | make_number (pinfo.pr_time.tv_nsec))), | |
3495 | attrs); | |
3496 | ||
bfe11752 | 3497 | attrs = Fcons (Fcons (Qctime, |
f4f634e8 DN |
3498 | list3 (make_number (pinfo.pr_ctime.tv_sec >> 16), |
3499 | make_number (pinfo.pr_ctime.tv_sec & 0xffff), | |
3500 | make_number (pinfo.pr_ctime.tv_nsec))), | |
3501 | attrs); | |
3502 | ||
3503 | attrs = Fcons (Fcons (Qpri, make_number (pinfo.pr_lwp.pr_pri)), attrs); | |
3504 | attrs = Fcons (Fcons (Qnice, make_number (pinfo.pr_lwp.pr_nice)), attrs); | |
3505 | attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (pinfo.pr_nlwp)), attrs); | |
3506 | ||
3507 | attrs = Fcons (Fcons (Qstart, | |
3508 | list3 (make_number (pinfo.pr_start.tv_sec >> 16), | |
3509 | make_number (pinfo.pr_start.tv_sec & 0xffff), | |
3510 | make_number (pinfo.pr_start.tv_nsec))), | |
3511 | attrs); | |
3512 | attrs = Fcons (Fcons (Qvsize, make_fixnum_or_float (pinfo.pr_size)), attrs); | |
3513 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (pinfo.pr_rssize)), attrs); | |
3514 | ||
3515 | /* pr_pctcpu and pr_pctmem are encoded as a fixed point 16 bit number in [0 ... 1]. */ | |
3516 | attrs = Fcons (Fcons (Qpcpu, (pinfo.pr_pctcpu * 100.0) / (double)0x8000), attrs); | |
3517 | attrs = Fcons (Fcons (Qpmem, (pinfo.pr_pctmem * 100.0) / (double)0x8000), attrs); | |
3518 | ||
3519 | decoded_cmd | |
3520 | = code_convert_string_norecord (make_unibyte_string (pinfo.pr_fname, | |
3521 | strlen (pinfo.pr_fname)), | |
3522 | Vlocale_coding_system, 0); | |
3523 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
3524 | decoded_cmd | |
3525 | = code_convert_string_norecord (make_unibyte_string (pinfo.pr_psargs, | |
3526 | strlen (pinfo.pr_psargs)), | |
3527 | Vlocale_coding_system, 0); | |
3528 | attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs); | |
3529 | } | |
3530 | ||
2d2d05d8 DN |
3531 | if (fd >= 0) |
3532 | emacs_close (fd); | |
3533 | ||
f4f634e8 DN |
3534 | UNGCPRO; |
3535 | return attrs; | |
3536 | } | |
06e111a6 | 3537 | |
f8d23104 DN |
3538 | /* The WINDOWSNT implementation is in w32.c. |
3539 | The MSDOS implementation is in dosfns.c. */ | |
c4605e09 | 3540 | #elif !defined (WINDOWSNT) && !defined (MSDOS) |
06e111a6 DN |
3541 | |
3542 | Lisp_Object | |
3543 | system_process_attributes (Lisp_Object pid) | |
3544 | { | |
9dcbe89b | 3545 | return Qnil; |
06e111a6 DN |
3546 | } |
3547 | ||
3548 | #endif /* !defined (WINDOWSNT) */ | |
3549 | ||
c4ea52a6 | 3550 | |
ab5796a9 MB |
3551 | /* arch-tag: edb43589-4e09-4544-b325-978b5b121dcf |
3552 | (do not change this comment) */ |