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 | 21 | #include <config.h> |
2c55aacf | 22 | #include <ctype.h> |
86a5659e | 23 | #include <signal.h> |
5890e9f7 | 24 | #include <stdio.h> |
86a5659e | 25 | #include <setjmp.h> |
06e111a6 DN |
26 | #ifdef HAVE_PWD_H |
27 | #include <pwd.h> | |
28 | #include <grp.h> | |
29 | #endif /* HAVE_PWD_H */ | |
30 | #ifdef HAVE_LIMITS_H | |
31 | #include <limits.h> | |
32 | #endif /* HAVE_LIMITS_H */ | |
d3eb3bfa DL |
33 | #ifdef HAVE_UNISTD_H |
34 | #include <unistd.h> | |
35 | #endif | |
3d608a86 J |
36 | #ifdef HAVE_TERM_H |
37 | #include <term.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 | #endif |
207bdbdb | 83 | |
bb4bc8e2 | 84 | #include <sys/file.h> |
7ce1c4de | 85 | |
612221ab | 86 | #ifdef HAVE_FCNTL_H |
bb4bc8e2 RM |
87 | #include <fcntl.h> |
88 | #endif | |
86a5659e | 89 | |
207bdbdb | 90 | #ifndef MSDOS |
86a5659e | 91 | #include <sys/ioctl.h> |
207bdbdb | 92 | #endif |
2a633456 | 93 | |
e04a4e0d | 94 | #include "systty.h" |
94c8642a | 95 | #include "syswait.h" |
86a5659e | 96 | |
e39a993c | 97 | #if defined (USG) |
86a5659e | 98 | #include <sys/utsname.h> |
86a5659e | 99 | #include <memory.h> |
e39a993c | 100 | #endif /* USG */ |
86a5659e | 101 | |
86a5659e JB |
102 | extern int quit_char; |
103 | ||
e36ec798 | 104 | #include "keyboard.h" |
0137dbf7 | 105 | #include "frame.h" |
86a5659e JB |
106 | #include "window.h" |
107 | #include "termhooks.h" | |
108 | #include "termchar.h" | |
109 | #include "termopts.h" | |
110 | #include "dispextern.h" | |
111 | #include "process.h" | |
0a125897 | 112 | #include "cm.h" /* for reset_sys_modes */ |
86a5659e | 113 | |
1eb8fd91 | 114 | /* For serial_configure and serial_open. */ |
d888760c GM |
115 | extern Lisp_Object QCport, QCspeed, QCprocess; |
116 | extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
117 | extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
118 | ||
fe03522b RS |
119 | #ifdef WINDOWSNT |
120 | #include <direct.h> | |
121 | /* In process.h which conflicts with the local copy. */ | |
122 | #define _P_WAIT 0 | |
43db14bb JB |
123 | int _cdecl _spawnlp (int, const char *, const char *, ...); |
124 | int _cdecl _getpid (void); | |
b6682dd9 | 125 | extern char *getwd (char *); |
fe03522b RS |
126 | #endif |
127 | ||
91bac16a JB |
128 | #include "syssignal.h" |
129 | #include "systime.h" | |
d79998bc KH |
130 | #ifdef HAVE_UTIME_H |
131 | #include <utime.h> | |
132 | #endif | |
133 | ||
134 | #ifndef HAVE_UTIMES | |
135 | #ifndef HAVE_STRUCT_UTIMBUF | |
136 | /* We want to use utime rather than utimes, but we couldn't find the | |
137 | structure declaration. We'll use the traditional one. */ | |
138 | struct utimbuf { | |
139 | long actime; | |
140 | long modtime; | |
141 | }; | |
142 | #endif | |
143 | #endif | |
86a5659e | 144 | |
a00d5589 RS |
145 | /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */ |
146 | #ifndef LPASS8 | |
147 | #define LPASS8 0 | |
148 | #endif | |
149 | ||
91433552 | 150 | static const int baud_convert[] = |
86a5659e JB |
151 | { |
152 | 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200, | |
153 | 1800, 2400, 4800, 9600, 19200, 38400 | |
154 | }; | |
86a5659e | 155 | |
f0d21750 GM |
156 | #ifdef HAVE_SPEED_T |
157 | #include <termios.h> | |
f0d21750 | 158 | #else |
ba5971b3 | 159 | #if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T) |
ba5971b3 | 160 | #else |
8a2a6032 | 161 | #if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX) |
515b04d0 | 162 | #include <termios.h> |
f2361c60 | 163 | #endif |
ba5971b3 | 164 | #endif |
f0d21750 | 165 | #endif |
86a5659e | 166 | |
5bdd7bdd GM |
167 | int emacs_ospeed; |
168 | ||
f57e2426 | 169 | void croak (char *) NO_RETURN; |
b9c4113e | 170 | |
89723395 GM |
171 | /* Temporary used by `sigblock' when defined in terms of signprocmask. */ |
172 | ||
173 | SIGMASKTYPE sigprocmask_set; | |
174 | ||
f78f1a83 | 175 | |
3480d92b | 176 | #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME) |
f78f1a83 | 177 | |
b6682dd9 | 178 | /* Return the current working directory. Returns NULL on errors. |
f78f1a83 EZ |
179 | Any other returned value must be freed with free. This is used |
180 | only when get_current_dir_name is not defined on the system. */ | |
181 | char* | |
cf84bb53 | 182 | get_current_dir_name (void) |
f78f1a83 EZ |
183 | { |
184 | char *buf; | |
185 | char *pwd; | |
186 | struct stat dotstat, pwdstat; | |
187 | /* If PWD is accurate, use it instead of calling getwd. PWD is | |
188 | sometimes a nicer name, and using it may avoid a fatal error if a | |
189 | parent directory is searchable but not readable. */ | |
190 | if ((pwd = getenv ("PWD")) != 0 | |
191 | && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1]))) | |
192 | && stat (pwd, &pwdstat) == 0 | |
193 | && stat (".", &dotstat) == 0 | |
194 | && dotstat.st_ino == pwdstat.st_ino | |
195 | && dotstat.st_dev == pwdstat.st_dev | |
196 | #ifdef MAXPATHLEN | |
197 | && strlen (pwd) < MAXPATHLEN | |
198 | #endif | |
199 | ) | |
200 | { | |
201 | buf = (char *) malloc (strlen (pwd) + 1); | |
202 | if (!buf) | |
203 | return NULL; | |
204 | strcpy (buf, pwd); | |
205 | } | |
206 | #ifdef HAVE_GETCWD | |
207 | else | |
208 | { | |
209 | size_t buf_size = 1024; | |
b6682dd9 | 210 | buf = (char *) malloc (buf_size); |
f78f1a83 EZ |
211 | if (!buf) |
212 | return NULL; | |
213 | for (;;) | |
214 | { | |
215 | if (getcwd (buf, buf_size) == buf) | |
216 | break; | |
217 | if (errno != ERANGE) | |
218 | { | |
219 | int tmp_errno = errno; | |
220 | free (buf); | |
221 | errno = tmp_errno; | |
222 | return NULL; | |
223 | } | |
224 | buf_size *= 2; | |
225 | buf = (char *) realloc (buf, buf_size); | |
226 | if (!buf) | |
227 | return NULL; | |
228 | } | |
229 | } | |
230 | #else | |
231 | else | |
232 | { | |
233 | /* We need MAXPATHLEN here. */ | |
234 | buf = (char *) malloc (MAXPATHLEN + 1); | |
235 | if (!buf) | |
236 | return NULL; | |
237 | if (getwd (buf) == NULL) | |
238 | { | |
239 | int tmp_errno = errno; | |
240 | free (buf); | |
241 | errno = tmp_errno; | |
242 | return NULL; | |
243 | } | |
244 | } | |
245 | #endif | |
246 | return buf; | |
247 | } | |
248 | #endif | |
249 | ||
64e971c3 | 250 | \f |
9628b887 | 251 | /* Discard pending input on all input descriptors. */ |
91bac16a | 252 | |
08633194 | 253 | void |
971de7fb | 254 | discard_tty_input (void) |
86a5659e | 255 | { |
fe03522b | 256 | #ifndef WINDOWSNT |
91bac16a | 257 | struct emacs_tty buf; |
86a5659e JB |
258 | |
259 | if (noninteractive) | |
260 | return; | |
261 | ||
fe03522b | 262 | #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ |
207bdbdb | 263 | while (dos_keyread () != -1) |
fe03522b | 264 | ; |
207bdbdb | 265 | #else /* not MSDOS */ |
9628b887 | 266 | { |
28d7d09f | 267 | struct tty_display_info *tty; |
9628b887 KL |
268 | for (tty = tty_list; tty; tty = tty->next) |
269 | { | |
0b0d3e0b KL |
270 | if (tty->input) /* Is the device suspended? */ |
271 | { | |
272 | EMACS_GET_TTY (fileno (tty->input), &buf); | |
273 | EMACS_SET_TTY (fileno (tty->input), &buf, 0); | |
274 | } | |
9628b887 KL |
275 | } |
276 | } | |
207bdbdb | 277 | #endif /* not MSDOS */ |
fe03522b | 278 | #endif /* not WINDOWSNT */ |
86a5659e JB |
279 | } |
280 | ||
16c290d8 | 281 | \f |
86a5659e JB |
282 | #ifdef SIGTSTP |
283 | ||
64e971c3 | 284 | /* Arrange for character C to be read as the next input from |
16c290d8 KL |
285 | the terminal. |
286 | XXX What if we have multiple ttys? | |
287 | */ | |
64e971c3 | 288 | |
dfcf069d | 289 | void |
0c2338d8 | 290 | stuff_char (char c) |
86a5659e | 291 | { |
428a555e | 292 | if (! FRAME_TERMCAP_P (SELECTED_FRAME ())) |
23dab951 RS |
293 | return; |
294 | ||
86a5659e JB |
295 | /* Should perhaps error if in batch mode */ |
296 | #ifdef TIOCSTI | |
0b0d3e0b | 297 | ioctl (fileno (CURTTY()->input), TIOCSTI, &c); |
86a5659e | 298 | #else /* no TIOCSTI */ |
71f06467 | 299 | error ("Cannot stuff terminal input characters in this version of Unix"); |
86a5659e JB |
300 | #endif /* no TIOCSTI */ |
301 | } | |
302 | ||
303 | #endif /* SIGTSTP */ | |
64e971c3 | 304 | \f |
08633194 | 305 | void |
16c290d8 | 306 | init_baud_rate (int fd) |
86a5659e | 307 | { |
86a5659e | 308 | if (noninteractive) |
5bdd7bdd | 309 | emacs_ospeed = 0; |
86a5659e JB |
310 | else |
311 | { | |
fe03522b | 312 | #ifdef DOS_NT |
5bdd7bdd | 313 | emacs_ospeed = 15; |
fe03522b | 314 | #else /* not DOS_NT */ |
e04a4e0d JB |
315 | #ifdef HAVE_TERMIOS |
316 | struct termios sg; | |
91bac16a | 317 | |
71f06467 | 318 | sg.c_cflag = B9600; |
16c290d8 | 319 | tcgetattr (fd, &sg); |
5bdd7bdd | 320 | emacs_ospeed = cfgetospeed (&sg); |
7c2fb837 | 321 | #else /* not TERMIOS */ |
e04a4e0d JB |
322 | #ifdef HAVE_TERMIO |
323 | struct termio sg; | |
91bac16a | 324 | |
71f06467 | 325 | sg.c_cflag = B9600; |
e04a4e0d | 326 | #ifdef HAVE_TCATTR |
16c290d8 | 327 | tcgetattr (fd, &sg); |
e04a4e0d | 328 | #else |
16c290d8 | 329 | ioctl (fd, TCGETA, &sg); |
e04a4e0d | 330 | #endif |
5bdd7bdd | 331 | emacs_ospeed = sg.c_cflag & CBAUD; |
7c2fb837 | 332 | #else /* neither TERMIOS nor TERMIO */ |
91bac16a | 333 | struct sgttyb sg; |
177c0ea7 | 334 | |
91bac16a | 335 | sg.sg_ospeed = B9600; |
16c290d8 | 336 | if (ioctl (fd, TIOCGETP, &sg) < 0) |
d7272cff | 337 | abort (); |
5bdd7bdd | 338 | emacs_ospeed = sg.sg_ospeed; |
91bac16a | 339 | #endif /* not HAVE_TERMIO */ |
e04a4e0d | 340 | #endif /* not HAVE_TERMIOS */ |
fe03522b | 341 | #endif /* not DOS_NT */ |
86a5659e | 342 | } |
177c0ea7 | 343 | |
5bdd7bdd GM |
344 | baud_rate = (emacs_ospeed < sizeof baud_convert / sizeof baud_convert[0] |
345 | ? baud_convert[emacs_ospeed] : 9600); | |
86a5659e JB |
346 | if (baud_rate == 0) |
347 | baud_rate = 1200; | |
348 | } | |
349 | ||
16c290d8 | 350 | \f |
86a5659e | 351 | /*ARGSUSED*/ |
dfcf069d | 352 | void |
971de7fb | 353 | set_exclusive_use (int fd) |
86a5659e JB |
354 | { |
355 | #ifdef FIOCLEX | |
356 | ioctl (fd, FIOCLEX, 0); | |
357 | #endif | |
358 | /* Ok to do nothing if this feature does not exist */ | |
359 | } | |
64e971c3 | 360 | \f |
86a5659e JB |
361 | |
362 | int wait_debugging; /* Set nonzero to make following function work under dbx | |
fe03522b | 363 | (at least for bsd). */ |
86a5659e JB |
364 | |
365 | SIGTYPE | |
971de7fb | 366 | wait_for_termination_signal (void) |
86a5659e JB |
367 | {} |
368 | ||
77defa9a | 369 | #ifndef MSDOS |
86a5659e JB |
370 | /* Wait for subprocess with process id `pid' to terminate and |
371 | make sure it will get eliminated (not remain forever as a zombie) */ | |
372 | ||
08633194 | 373 | void |
971de7fb | 374 | wait_for_termination (int pid) |
86a5659e JB |
375 | { |
376 | while (1) | |
377 | { | |
f2a77c3a | 378 | #if defined (BSD_SYSTEM) || defined (HPUX) |
4c8975ad RS |
379 | /* Note that kill returns -1 even if the process is just a zombie now. |
380 | But inevitably a SIGCHLD interrupt should be generated | |
381 | and child_sig will do wait3 and make the process go away. */ | |
382 | /* There is some indication that there is a bug involved with | |
383 | termination of subprocesses, perhaps involving a kernel bug too, | |
384 | but no idea what it is. Just as a hunch we signal SIGCHLD to see | |
385 | if that causes the problem to go away or get worse. */ | |
386 | sigsetmask (sigmask (SIGCHLD)); | |
387 | if (0 > kill (pid, 0)) | |
fe03522b | 388 | { |
4c8975ad RS |
389 | sigsetmask (SIGEMPTYMASK); |
390 | kill (getpid (), SIGCHLD); | |
391 | break; | |
392 | } | |
393 | if (wait_debugging) | |
394 | sleep (1); | |
395 | else | |
396 | sigpause (SIGEMPTYMASK); | |
2a633456 | 397 | #else /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
d6dae14b EZ |
398 | #ifdef WINDOWSNT |
399 | wait (0); | |
400 | break; | |
401 | #else /* not WINDOWSNT */ | |
9ab714c7 | 402 | sigblock (sigmask (SIGCHLD)); |
59957f85 GM |
403 | errno = 0; |
404 | if (kill (pid, 0) == -1 && errno == ESRCH) | |
9ab714c7 RS |
405 | { |
406 | sigunblock (sigmask (SIGCHLD)); | |
407 | break; | |
408 | } | |
ac3ac859 | 409 | |
0fdcb867 | 410 | sigsuspend (&empty_mask); |
d6dae14b | 411 | #endif /* not WINDOWSNT */ |
2a633456 | 412 | #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
86a5659e JB |
413 | } |
414 | } | |
415 | ||
86a5659e JB |
416 | /* |
417 | * flush any pending output | |
418 | * (may flush input as well; it does not matter the way we use it) | |
419 | */ | |
177c0ea7 | 420 | |
08633194 | 421 | void |
971de7fb | 422 | flush_pending_output (int channel) |
86a5659e JB |
423 | { |
424 | #ifdef HAVE_TERMIOS | |
425 | /* If we try this, we get hit with SIGTTIN, because | |
426 | the child's tty belongs to the child's pgrp. */ | |
427 | #else | |
428 | #ifdef TCFLSH | |
429 | ioctl (channel, TCFLSH, 1); | |
430 | #else | |
431 | #ifdef TIOCFLUSH | |
432 | int zero = 0; | |
433 | /* 3rd arg should be ignored | |
434 | but some 4.2 kernels actually want the address of an int | |
435 | and nonzero means something different. */ | |
436 | ioctl (channel, TIOCFLUSH, &zero); | |
437 | #endif | |
438 | #endif | |
439 | #endif | |
440 | } | |
64e971c3 | 441 | \f |
86a5659e JB |
442 | /* Set up the terminal at the other end of a pseudo-terminal that |
443 | we will be controlling an inferior through. | |
444 | It should not echo or do line-editing, since that is done | |
445 | in Emacs. No padding needed for insertion into an Emacs buffer. */ | |
446 | ||
08633194 | 447 | void |
971de7fb | 448 | child_setup_tty (int out) |
86a5659e | 449 | { |
77defa9a | 450 | #ifndef WINDOWSNT |
91bac16a JB |
451 | struct emacs_tty s; |
452 | ||
453 | EMACS_GET_TTY (out, &s); | |
86a5659e | 454 | |
31be8d24 | 455 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
91bac16a JB |
456 | s.main.c_oflag |= OPOST; /* Enable output postprocessing */ |
457 | s.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL on output */ | |
9d4e5eea | 458 | #ifdef NLDLY |
07cfc4e7 GM |
459 | /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html |
460 | Some versions of GNU Hurd do not have FFDLY? */ | |
461 | #ifdef FFDLY | |
91bac16a JB |
462 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY); |
463 | /* No output delays */ | |
07cfc4e7 GM |
464 | #else |
465 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY); | |
466 | /* No output delays */ | |
467 | #endif | |
9d4e5eea | 468 | #endif |
91bac16a JB |
469 | s.main.c_lflag &= ~ECHO; /* Disable echo */ |
470 | s.main.c_lflag |= ISIG; /* Enable signals */ | |
9d4e5eea RS |
471 | #ifdef IUCLC |
472 | s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */ | |
473 | #endif | |
f7097b2a RS |
474 | #ifdef ISTRIP |
475 | s.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ | |
476 | #endif | |
23e4c8be | 477 | #ifdef OLCUC |
9d4e5eea RS |
478 | s.main.c_oflag &= ~OLCUC; /* Disable upcasing on output. */ |
479 | #endif | |
f7097b2a | 480 | s.main.c_oflag &= ~TAB3; /* Disable tab expansion */ |
1bf96fb5 | 481 | s.main.c_cflag = (s.main.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */ |
441f6399 RS |
482 | s.main.c_cc[VERASE] = CDISABLE; /* disable erase processing */ |
483 | s.main.c_cc[VKILL] = CDISABLE; /* disable kill processing */ | |
91bac16a | 484 | |
86a5659e | 485 | #ifdef HPUX |
91bac16a | 486 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e | 487 | #endif /* HPUX */ |
91bac16a | 488 | |
dfe598b5 RS |
489 | #ifdef SIGNALS_VIA_CHARACTERS |
490 | /* the QUIT and INTR character are used in process_send_signal | |
491 | so set them here to something useful. */ | |
fa51fa32 | 492 | if (s.main.c_cc[VQUIT] == CDISABLE) |
dfe598b5 | 493 | s.main.c_cc[VQUIT] = '\\'&037; /* Control-\ */ |
fa51fa32 | 494 | if (s.main.c_cc[VINTR] == CDISABLE) |
dfe598b5 RS |
495 | s.main.c_cc[VINTR] = 'C'&037; /* Control-C */ |
496 | #endif /* not SIGNALS_VIA_CHARACTERS */ | |
497 | ||
86a5659e | 498 | #ifdef AIX |
86a5659e JB |
499 | /* Also, PTY overloads NUL and BREAK. |
500 | don't ignore break, but don't signal either, so it looks like NUL. */ | |
91bac16a JB |
501 | s.main.c_iflag &= ~IGNBRK; |
502 | s.main.c_iflag &= ~BRKINT; | |
dfe598b5 RS |
503 | /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here |
504 | unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional | |
505 | would force it to 0377. That looks like duplicated code. */ | |
91bac16a | 506 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e JB |
507 | #endif /* AIX */ |
508 | ||
aaa0a19a SM |
509 | /* We originally enabled ICANON (and set VEOF to 04), and then had |
510 | proces.c send additional EOF chars to flush the output when faced | |
511 | with long lines, but this leads to weird effects when the | |
2b0a91e7 SM |
512 | subprocess has disabled ICANON and ends up seeing those spurious |
513 | extra EOFs. So we don't send EOFs any more in | |
aaa0a19a SM |
514 | process.c:send_process. First we tried to disable ICANON by |
515 | default, so if a subsprocess sets up ICANON, it's his problem (or | |
516 | the Elisp package that talks to it) to deal with lines that are | |
517 | too long. But this disables some features, such as the ability | |
518 | to send EOF signals. So we re-enabled ICANON but there is no | |
519 | more "send eof to flush" going on (which is wrong and unportable | |
520 | in itself). The correct way to handle too much output is to | |
521 | buffer what could not be written and then write it again when | |
522 | select returns ok for writing. This has it own set of | |
523 | problems. Write is now asynchronous, is that a problem? How much | |
524 | do we buffer, and what do we do when that limit is reached? */ | |
9a747ba6 JD |
525 | |
526 | s.main.c_lflag |= ICANON; /* Enable line editing and eof processing */ | |
527 | s.main.c_cc[VEOF] = 'D'&037; /* Control-D */ | |
3d15fe78 | 528 | #if 0 /* These settings only apply to non-ICANON mode. */ |
2b0a91e7 SM |
529 | s.main.c_cc[VMIN] = 1; |
530 | s.main.c_cc[VTIME] = 0; | |
aaa0a19a | 531 | #endif |
2b0a91e7 | 532 | |
06ac62b4 SM |
533 | #else /* not HAVE_TERMIO */ |
534 | ||
535 | s.main.sg_flags &= ~(ECHO | CRMOD | ANYP | ALLDELAY | RAW | LCASE | |
536 | | CBREAK | TANDEM); | |
537 | s.main.sg_flags |= LPASS8; | |
538 | s.main.sg_erase = 0377; | |
539 | s.main.sg_kill = 0377; | |
540 | s.lmode = LLITOUT | s.lmode; /* Don't strip 8th bit */ | |
541 | ||
86a5659e JB |
542 | #endif /* not HAVE_TERMIO */ |
543 | ||
91bac16a | 544 | EMACS_SET_TTY (out, &s, 0); |
86a5659e | 545 | |
77defa9a | 546 | #endif /* not WINDOWSNT */ |
86a5659e | 547 | } |
77defa9a | 548 | #endif /* MSDOS */ |
86a5659e | 549 | |
64e971c3 | 550 | \f |
86a5659e JB |
551 | /* Record a signal code and the handler for it. */ |
552 | struct save_signal | |
553 | { | |
554 | int code; | |
f57e2426 | 555 | SIGTYPE (*handler) (int); |
86a5659e JB |
556 | }; |
557 | ||
f57e2426 J |
558 | static void save_signal_handlers (struct save_signal *); |
559 | static void restore_signal_handlers (struct save_signal *); | |
35a05cca | 560 | |
86a5659e JB |
561 | /* Suspend the Emacs process; give terminal to its superior. */ |
562 | ||
08633194 | 563 | void |
971de7fb | 564 | sys_suspend (void) |
86a5659e | 565 | { |
c4ea52a6 | 566 | #if defined (SIGTSTP) && !defined (MSDOS) |
86a5659e | 567 | |
5a570e37 | 568 | { |
e89a2cd5 | 569 | int pgrp = EMACS_GETPGRP (0); |
5a570e37 JB |
570 | EMACS_KILLPG (pgrp, SIGTSTP); |
571 | } | |
86a5659e JB |
572 | |
573 | #else /* No SIGTSTP */ | |
86a5659e JB |
574 | /* On a system where suspending is not implemented, |
575 | instead fork a subshell and let it talk directly to the terminal | |
576 | while we wait. */ | |
a0932daa KH |
577 | sys_subshell (); |
578 | ||
a0932daa | 579 | #endif /* no SIGTSTP */ |
a0932daa KH |
580 | } |
581 | ||
582 | /* Fork a subshell. */ | |
583 | ||
08633194 | 584 | void |
971de7fb | 585 | sys_subshell (void) |
a0932daa | 586 | { |
ad00c243 | 587 | #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
a0932daa KH |
588 | int st; |
589 | char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */ | |
590 | #endif | |
efa04277 | 591 | int pid; |
86a5659e | 592 | struct save_signal saved_handlers[5]; |
efa04277 RS |
593 | Lisp_Object dir; |
594 | unsigned char *str = 0; | |
595 | int len; | |
86a5659e JB |
596 | |
597 | saved_handlers[0].code = SIGINT; | |
598 | saved_handlers[1].code = SIGQUIT; | |
599 | saved_handlers[2].code = SIGTERM; | |
600 | #ifdef SIGIO | |
601 | saved_handlers[3].code = SIGIO; | |
602 | saved_handlers[4].code = 0; | |
603 | #else | |
604 | saved_handlers[3].code = 0; | |
605 | #endif | |
606 | ||
efa04277 RS |
607 | /* Mentioning current_buffer->buffer would mean including buffer.h, |
608 | which somehow wedges the hp compiler. So instead... */ | |
609 | ||
610 | dir = intern ("default-directory"); | |
0e7e7a58 | 611 | if (NILP (Fboundp (dir))) |
efa04277 RS |
612 | goto xyzzy; |
613 | dir = Fsymbol_value (dir); | |
914e81a2 | 614 | if (!STRINGP (dir)) |
efa04277 RS |
615 | goto xyzzy; |
616 | ||
617 | dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil); | |
d5db4077 KR |
618 | str = (unsigned char *) alloca (SCHARS (dir) + 2); |
619 | len = SCHARS (dir); | |
72af86bd | 620 | memcpy (str, SDATA (dir), len); |
efa04277 RS |
621 | if (str[len - 1] != '/') str[len++] = '/'; |
622 | str[len] = 0; | |
623 | xyzzy: | |
624 | ||
ad00c243 | 625 | #ifdef DOS_NT |
7964ba9e | 626 | pid = 0; |
718ca3cf RS |
627 | save_signal_handlers (saved_handlers); |
628 | synch_process_alive = 1; | |
177c0ea7 | 629 | #else |
efa04277 | 630 | pid = vfork (); |
86a5659e JB |
631 | if (pid == -1) |
632 | error ("Can't spawn subshell"); | |
7964ba9e RS |
633 | #endif |
634 | ||
86a5659e JB |
635 | if (pid == 0) |
636 | { | |
7964ba9e | 637 | char *sh = 0; |
86a5659e | 638 | |
ad00c243 | 639 | #ifdef DOS_NT /* MW, Aug 1993 */ |
207bdbdb | 640 | getwd (oldwd); |
7964ba9e RS |
641 | if (sh == 0) |
642 | sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ | |
207bdbdb | 643 | #endif |
7964ba9e RS |
644 | if (sh == 0) |
645 | sh = (char *) egetenv ("SHELL"); | |
86a5659e JB |
646 | if (sh == 0) |
647 | sh = "sh"; | |
207bdbdb | 648 | |
86a5659e | 649 | /* Use our buffer's default directory for the subshell. */ |
efa04277 | 650 | if (str) |
074c438c | 651 | chdir ((char *) str); |
efa04277 | 652 | |
86a5659e | 653 | close_process_descs (); /* Close Emacs's pipes/ptys */ |
1593c2fe | 654 | |
6f8b4d01 | 655 | #ifdef SET_EMACS_PRIORITY |
1593c2fe | 656 | { |
31ade731 | 657 | extern EMACS_INT emacs_priority; |
1593c2fe | 658 | |
6f8b4d01 | 659 | if (emacs_priority < 0) |
1593c2fe JB |
660 | nice (-emacs_priority); |
661 | } | |
662 | #endif | |
663 | ||
fe03522b | 664 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
c0917202 | 665 | { |
48178f9a EZ |
666 | char *epwd = getenv ("PWD"); |
667 | char old_pwd[MAXPATHLEN+1+4]; | |
c0917202 EZ |
668 | |
669 | /* If PWD is set, pass it with corrected value. */ | |
48178f9a | 670 | if (epwd) |
c0917202 | 671 | { |
48178f9a | 672 | strcpy (old_pwd, epwd); |
c0917202 EZ |
673 | if (str[len - 1] == '/') |
674 | str[len - 1] = '\0'; | |
675 | setenv ("PWD", str, 1); | |
676 | } | |
677 | st = system (sh); | |
678 | chdir (oldwd); | |
48178f9a | 679 | if (epwd) |
c0917202 EZ |
680 | putenv (old_pwd); /* restore previous value */ |
681 | } | |
207bdbdb | 682 | #else /* not MSDOS */ |
fe03522b | 683 | #ifdef WINDOWSNT |
fe03522b RS |
684 | /* Waits for process completion */ |
685 | pid = _spawnlp (_P_WAIT, sh, sh, NULL); | |
ad00c243 | 686 | chdir (oldwd); |
fe03522b RS |
687 | if (pid == -1) |
688 | write (1, "Can't execute subshell", 22); | |
fe03522b | 689 | #else /* not WINDOWSNT */ |
e120ea40 | 690 | execlp (sh, sh, (char *) 0); |
86a5659e JB |
691 | write (1, "Can't execute subshell", 22); |
692 | _exit (1); | |
fe03522b | 693 | #endif /* not WINDOWSNT */ |
207bdbdb | 694 | #endif /* not MSDOS */ |
86a5659e JB |
695 | } |
696 | ||
718ca3cf | 697 | /* Do this now if we did not do it before. */ |
ed68db4d | 698 | #ifndef MSDOS |
86a5659e | 699 | save_signal_handlers (saved_handlers); |
ffafc793 | 700 | synch_process_alive = 1; |
718ca3cf RS |
701 | #endif |
702 | ||
ad00c243 | 703 | #ifndef DOS_NT |
86a5659e | 704 | wait_for_termination (pid); |
7964ba9e | 705 | #endif |
86a5659e | 706 | restore_signal_handlers (saved_handlers); |
718ca3cf | 707 | synch_process_alive = 0; |
86a5659e JB |
708 | } |
709 | ||
35a05cca | 710 | static void |
971de7fb | 711 | save_signal_handlers (struct save_signal *saved_handlers) |
86a5659e JB |
712 | { |
713 | while (saved_handlers->code) | |
714 | { | |
508b171c | 715 | saved_handlers->handler |
f57e2426 | 716 | = (SIGTYPE (*) (int)) signal (saved_handlers->code, SIG_IGN); |
86a5659e JB |
717 | saved_handlers++; |
718 | } | |
719 | } | |
720 | ||
35a05cca | 721 | static void |
971de7fb | 722 | restore_signal_handlers (struct save_signal *saved_handlers) |
86a5659e JB |
723 | { |
724 | while (saved_handlers->code) | |
725 | { | |
726 | signal (saved_handlers->code, saved_handlers->handler); | |
727 | saved_handlers++; | |
728 | } | |
729 | } | |
730 | \f | |
4d553a13 KL |
731 | #ifndef SIGIO |
732 | /* If SIGIO is broken, don't do anything. */ | |
733 | void | |
734 | init_sigio (int fd) | |
735 | { | |
736 | } | |
737 | ||
738 | void | |
739 | reset_sigio (int fd) | |
740 | { | |
741 | } | |
742 | ||
743 | void | |
744 | request_sigio (void) | |
745 | { | |
746 | } | |
747 | ||
748 | void | |
749 | unrequest_sigio (void) | |
750 | { | |
751 | } | |
752 | ||
753 | #else | |
86a5659e JB |
754 | #ifdef F_SETFL |
755 | ||
819b8f00 | 756 | int old_fcntl_flags[MAXDESC]; |
86a5659e | 757 | |
08633194 | 758 | void |
971de7fb | 759 | init_sigio (int fd) |
86a5659e JB |
760 | { |
761 | #ifdef FASYNC | |
819b8f00 KL |
762 | old_fcntl_flags[fd] = fcntl (fd, F_GETFL, 0) & ~FASYNC; |
763 | fcntl (fd, F_SETFL, old_fcntl_flags[fd] | FASYNC); | |
86a5659e | 764 | #endif |
23dab951 | 765 | interrupts_deferred = 0; |
86a5659e JB |
766 | } |
767 | ||
590034f9 | 768 | void |
971de7fb | 769 | reset_sigio (int fd) |
86a5659e | 770 | { |
4d553a13 | 771 | #ifdef FASYNC |
819b8f00 | 772 | fcntl (fd, F_SETFL, old_fcntl_flags[fd]); |
4d553a13 | 773 | #endif |
86a5659e JB |
774 | } |
775 | ||
eb8c3be9 | 776 | #ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */ |
428a555e | 777 | /* XXX Uhm, FASYNC is not used anymore here. */ |
6d8cf830 | 778 | /* XXX Yeah, but you need it for SIGIO, don't you? */ |
86a5659e | 779 | |
08633194 | 780 | void |
971de7fb | 781 | request_sigio (void) |
86a5659e | 782 | { |
6bbba5a6 | 783 | if (noninteractive) |
23dab951 RS |
784 | return; |
785 | ||
86a5659e | 786 | #ifdef SIGWINCH |
e065a56e | 787 | sigunblock (sigmask (SIGWINCH)); |
86a5659e | 788 | #endif |
0a125897 | 789 | sigunblock (sigmask (SIGIO)); |
86a5659e JB |
790 | |
791 | interrupts_deferred = 0; | |
792 | } | |
793 | ||
08633194 | 794 | void |
0a125897 | 795 | unrequest_sigio (void) |
cf84bb53 | 796 | { |
6bbba5a6 KL |
797 | if (noninteractive) |
798 | return; | |
799 | ||
800 | #if 0 /* XXX What's wrong with blocking SIGIO under X? */ | |
801 | if (x_display_list) | |
23dab951 | 802 | return; |
428a555e | 803 | #endif |
6bbba5a6 | 804 | |
86a5659e | 805 | #ifdef SIGWINCH |
e065a56e | 806 | sigblock (sigmask (SIGWINCH)); |
86a5659e | 807 | #endif |
0a125897 | 808 | sigblock (sigmask (SIGIO)); |
86a5659e JB |
809 | interrupts_deferred = 1; |
810 | } | |
811 | ||
812 | #else /* no FASYNC */ | |
feb67dfe | 813 | #ifndef MSDOS |
25ab68af | 814 | |
08633194 | 815 | void |
cf84bb53 | 816 | request_sigio (void) |
86a5659e | 817 | { |
6e5b2385 | 818 | if (noninteractive || read_socket_hook) |
23dab951 RS |
819 | return; |
820 | ||
86a5659e JB |
821 | croak ("request_sigio"); |
822 | } | |
177c0ea7 | 823 | |
08633194 | 824 | void |
cf84bb53 | 825 | unrequest_sigio (void) |
86a5659e | 826 | { |
6e5b2385 | 827 | if (noninteractive || read_socket_hook) |
23dab951 RS |
828 | return; |
829 | ||
86a5659e JB |
830 | croak ("unrequest_sigio"); |
831 | } | |
feb67dfe EZ |
832 | |
833 | #endif /* MSDOS */ | |
86a5659e JB |
834 | #endif /* FASYNC */ |
835 | #endif /* F_SETFL */ | |
4d553a13 | 836 | #endif /* SIGIO */ |
9ae8f997 | 837 | |
9ae8f997 | 838 | \f |
68936329 JB |
839 | /* Getting and setting emacs_tty structures. */ |
840 | ||
841 | /* Set *TC to the parameters associated with the terminal FD. | |
842 | Return zero if all's well, or -1 if we ran into an error we | |
843 | couldn't deal with. */ | |
844 | int | |
971de7fb | 845 | emacs_get_tty (int fd, struct emacs_tty *settings) |
68936329 JB |
846 | { |
847 | /* Retrieve the primary parameters - baud rate, character size, etcetera. */ | |
848 | #ifdef HAVE_TCATTR | |
849 | /* We have those nifty POSIX tcmumbleattr functions. */ | |
72af86bd | 850 | memset (&settings->main, 0, sizeof (settings->main)); |
68936329 JB |
851 | if (tcgetattr (fd, &settings->main) < 0) |
852 | return -1; | |
853 | ||
854 | #else | |
855 | #ifdef HAVE_TERMIO | |
856 | /* The SYSV-style interface? */ | |
857 | if (ioctl (fd, TCGETA, &settings->main) < 0) | |
858 | return -1; | |
859 | ||
68936329 | 860 | #else |
fe03522b | 861 | #ifndef DOS_NT |
68936329 JB |
862 | /* I give up - I hope you have the BSD ioctls. */ |
863 | if (ioctl (fd, TIOCGETP, &settings->main) < 0) | |
864 | return -1; | |
fe03522b | 865 | #endif /* not DOS_NT */ |
68936329 | 866 | #endif |
68936329 JB |
867 | #endif |
868 | ||
869 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 870 | #ifdef HAVE_LTCHARS |
68936329 JB |
871 | if (ioctl (fd, TIOCGLTC, &settings->ltchars) < 0) |
872 | return -1; | |
873 | #endif | |
874 | ||
875 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 876 | #ifdef HAVE_TCHARS |
68936329 JB |
877 | if (ioctl (fd, TIOCGETC, &settings->tchars) < 0 |
878 | || ioctl (fd, TIOCLGET, &settings->lmode) < 0) | |
879 | return -1; | |
880 | #endif | |
881 | ||
882 | /* We have survived the tempest. */ | |
883 | return 0; | |
884 | } | |
885 | ||
886 | ||
887 | /* Set the parameters of the tty on FD according to the contents of | |
394049ec | 888 | *SETTINGS. If FLUSHP is non-zero, we discard input. |
68936329 | 889 | Return 0 if all went well, and -1 if anything failed. */ |
394049ec | 890 | |
68936329 | 891 | int |
971de7fb | 892 | emacs_set_tty (int fd, struct emacs_tty *settings, int flushp) |
68936329 JB |
893 | { |
894 | /* Set the primary parameters - baud rate, character size, etcetera. */ | |
895 | #ifdef HAVE_TCATTR | |
e6cc3307 | 896 | int i; |
68936329 JB |
897 | /* We have those nifty POSIX tcmumbleattr functions. |
898 | William J. Smith <wjs@wiis.wang.com> writes: | |
c4ea52a6 | 899 | "POSIX 1003.1 defines tcsetattr to return success if it was |
68936329 JB |
900 | able to perform any of the requested actions, even if some |
901 | of the requested actions could not be performed. | |
902 | We must read settings back to ensure tty setup properly. | |
903 | AIX requires this to keep tty from hanging occasionally." */ | |
eb8c3be9 | 904 | /* This make sure that we don't loop indefinitely in here. */ |
e6cc3307 | 905 | for (i = 0 ; i < 10 ; i++) |
394049ec | 906 | if (tcsetattr (fd, flushp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0) |
68936329 JB |
907 | { |
908 | if (errno == EINTR) | |
909 | continue; | |
910 | else | |
911 | return -1; | |
912 | } | |
913 | else | |
914 | { | |
915 | struct termios new; | |
916 | ||
72af86bd | 917 | memset (&new, 0, sizeof (new)); |
68936329 JB |
918 | /* Get the current settings, and see if they're what we asked for. */ |
919 | tcgetattr (fd, &new); | |
e6cc3307 RS |
920 | /* We cannot use memcmp on the whole structure here because under |
921 | * aix386 the termios structure has some reserved field that may | |
922 | * not be filled in. | |
923 | */ | |
924 | if ( new.c_iflag == settings->main.c_iflag | |
925 | && new.c_oflag == settings->main.c_oflag | |
926 | && new.c_cflag == settings->main.c_cflag | |
927 | && new.c_lflag == settings->main.c_lflag | |
c4ea52a6 | 928 | && memcmp (new.c_cc, settings->main.c_cc, NCCS) == 0) |
68936329 | 929 | break; |
e6cc3307 RS |
930 | else |
931 | continue; | |
68936329 JB |
932 | } |
933 | ||
934 | #else | |
935 | #ifdef HAVE_TERMIO | |
936 | /* The SYSV-style interface? */ | |
394049ec | 937 | if (ioctl (fd, flushp ? TCSETAF : TCSETAW, &settings->main) < 0) |
68936329 JB |
938 | return -1; |
939 | ||
68936329 | 940 | #else |
fe03522b | 941 | #ifndef DOS_NT |
68936329 | 942 | /* I give up - I hope you have the BSD ioctls. */ |
394049ec | 943 | if (ioctl (fd, (flushp) ? TIOCSETP : TIOCSETN, &settings->main) < 0) |
68936329 | 944 | return -1; |
fe03522b | 945 | #endif /* not DOS_NT */ |
68936329 | 946 | |
68936329 JB |
947 | #endif |
948 | #endif | |
949 | ||
950 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 951 | #ifdef HAVE_LTCHARS |
68936329 JB |
952 | if (ioctl (fd, TIOCSLTC, &settings->ltchars) < 0) |
953 | return -1; | |
954 | #endif | |
955 | ||
956 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 957 | #ifdef HAVE_TCHARS |
68936329 JB |
958 | if (ioctl (fd, TIOCSETC, &settings->tchars) < 0 |
959 | || ioctl (fd, TIOCLSET, &settings->lmode) < 0) | |
960 | return -1; | |
961 | #endif | |
177c0ea7 | 962 | |
68936329 JB |
963 | /* We have survived the tempest. */ |
964 | return 0; | |
965 | } | |
966 | ||
967 | \f | |
86a5659e JB |
968 | |
969 | #ifdef F_SETOWN | |
819b8f00 | 970 | int old_fcntl_owner[MAXDESC]; |
86a5659e JB |
971 | #endif /* F_SETOWN */ |
972 | ||
86a5659e JB |
973 | /* This may also be defined in stdio, |
974 | but if so, this does no harm, | |
975 | and using the same name avoids wasting the other one's space. */ | |
976 | ||
9d9a7716 | 977 | #if defined (USG) |
86a5659e JB |
978 | unsigned char _sobuf[BUFSIZ+8]; |
979 | #else | |
980 | char _sobuf[BUFSIZ]; | |
981 | #endif | |
177c0ea7 | 982 | |
50b8cf60 | 983 | #ifdef HAVE_LTCHARS |
86a5659e JB |
984 | static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1}; |
985 | #endif | |
50b8cf60 | 986 | #ifdef HAVE_TCHARS |
4ec5cb58 | 987 | static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; |
177c0ea7 | 988 | #endif |
86a5659e | 989 | |
da8e1115 KL |
990 | /* Initialize the terminal mode on all tty devices that are currently |
991 | open. */ | |
992 | ||
08633194 | 993 | void |
28d440ab KL |
994 | init_all_sys_modes (void) |
995 | { | |
28d7d09f | 996 | struct tty_display_info *tty; |
16c290d8 | 997 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 998 | init_sys_modes (tty); |
28d440ab KL |
999 | } |
1000 | ||
da8e1115 KL |
1001 | /* Initialize the terminal mode on the given tty device. */ |
1002 | ||
28d440ab | 1003 | void |
971de7fb | 1004 | init_sys_modes (struct tty_display_info *tty_out) |
86a5659e | 1005 | { |
91bac16a JB |
1006 | struct emacs_tty tty; |
1007 | ||
4ec5cb58 RS |
1008 | Vtty_erase_char = Qnil; |
1009 | ||
86a5659e JB |
1010 | if (noninteractive) |
1011 | return; | |
1012 | ||
0b0d3e0b KL |
1013 | if (!tty_out->output) |
1014 | return; /* The tty is suspended. */ | |
cf84bb53 | 1015 | |
2246281f KL |
1016 | if (! tty_out->old_tty) |
1017 | tty_out->old_tty = (struct emacs_tty *) xmalloc (sizeof (struct emacs_tty)); | |
cf84bb53 | 1018 | |
0b0d3e0b | 1019 | EMACS_GET_TTY (fileno (tty_out->input), tty_out->old_tty); |
23dab951 | 1020 | |
2246281f | 1021 | tty = *tty_out->old_tty; |
86a5659e | 1022 | |
31be8d24 | 1023 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
2246281f | 1024 | XSETINT (Vtty_erase_char, tty.main.c_cc[VERASE]); |
4ec5cb58 | 1025 | |
2246281f KL |
1026 | tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */ |
1027 | tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ | |
7f371164 RS |
1028 | #ifdef INLCR /* I'm just being cautious, |
1029 | since I can't check how widespread INLCR is--rms. */ | |
2246281f | 1030 | tty.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */ |
7f371164 | 1031 | #endif |
86a5659e | 1032 | #ifdef ISTRIP |
2246281f | 1033 | tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ |
86a5659e | 1034 | #endif |
2246281f KL |
1035 | tty.main.c_lflag &= ~ECHO; /* Disable echo */ |
1036 | tty.main.c_lflag &= ~ICANON; /* Disable erase/kill processing */ | |
e2b40c23 | 1037 | #ifdef IEXTEN |
2246281f | 1038 | tty.main.c_lflag &= ~IEXTEN; /* Disable other editing characters. */ |
e2b40c23 | 1039 | #endif |
2246281f KL |
1040 | tty.main.c_lflag |= ISIG; /* Enable signals */ |
1041 | if (tty_out->flow_control) | |
1042 | { | |
1043 | tty.main.c_iflag |= IXON; /* Enable start/stop output control */ | |
86a5659e | 1044 | #ifdef IXANY |
2246281f | 1045 | tty.main.c_iflag &= ~IXANY; |
86a5659e | 1046 | #endif /* IXANY */ |
2246281f KL |
1047 | } |
1048 | else | |
1049 | tty.main.c_iflag &= ~IXON; /* Disable start/stop output control */ | |
1050 | tty.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL | |
1051 | on output */ | |
1052 | tty.main.c_oflag &= ~TAB3; /* Disable tab expansion */ | |
86a5659e | 1053 | #ifdef CS8 |
2246281f KL |
1054 | if (tty_out->meta_key) |
1055 | { | |
1056 | tty.main.c_cflag |= CS8; /* allow 8th bit on input */ | |
1057 | tty.main.c_cflag &= ~PARENB;/* Don't check parity */ | |
1058 | } | |
86a5659e | 1059 | #endif |
2246281f KL |
1060 | if (tty_out->input == stdin) |
1061 | { | |
1062 | tty.main.c_cc[VINTR] = quit_char; /* C-g (usually) gives SIGINT */ | |
1063 | /* Set up C-g for both SIGQUIT and SIGINT. | |
1064 | We don't know which we will get, but we handle both alike | |
1065 | so which one it really gives us does not matter. */ | |
1066 | tty.main.c_cc[VQUIT] = quit_char; | |
1067 | } | |
1068 | else | |
1069 | { | |
1070 | /* We normally don't get interrupt or quit signals from tty | |
1071 | devices other than our controlling terminal; therefore, | |
1072 | we must handle C-g as normal input. Unfortunately, this | |
1073 | means that the interrupt and quit feature must be | |
1074 | disabled on secondary ttys, or we would not even see the | |
1075 | keypress. | |
cf84bb53 | 1076 | |
2246281f KL |
1077 | Note that even though emacsclient could have special code |
1078 | to pass SIGINT to Emacs, we should _not_ enable | |
1079 | interrupt/quit keys for emacsclient frames. This means | |
1080 | that we can't break out of loops in C code from a | |
1081 | secondary tty frame, but we can always decide what | |
1082 | display the C-g came from, which is more important from a | |
1083 | usability point of view. (Consider the case when two | |
1084 | people work together using the same Emacs instance.) */ | |
1085 | tty.main.c_cc[VINTR] = CDISABLE; | |
1086 | tty.main.c_cc[VQUIT] = CDISABLE; | |
1087 | } | |
1088 | tty.main.c_cc[VMIN] = 1; /* Input should wait for at least 1 char */ | |
1089 | tty.main.c_cc[VTIME] = 0; /* no matter how long that takes. */ | |
86a5659e | 1090 | #ifdef VSWTCH |
2246281f | 1091 | tty.main.c_cc[VSWTCH] = CDISABLE; /* Turn off shell layering use |
91bac16a | 1092 | of C-z */ |
86a5659e | 1093 | #endif /* VSWTCH */ |
cf84bb53 | 1094 | |
b8ff87cc | 1095 | #if defined (__mips__) || defined (HAVE_TCATTR) |
86a5659e | 1096 | #ifdef VSUSP |
2246281f | 1097 | tty.main.c_cc[VSUSP] = CDISABLE; /* Turn off mips handling of C-z. */ |
86a5659e JB |
1098 | #endif /* VSUSP */ |
1099 | #ifdef V_DSUSP | |
2246281f | 1100 | tty.main.c_cc[V_DSUSP] = CDISABLE; /* Turn off mips handling of C-y. */ |
86a5659e | 1101 | #endif /* V_DSUSP */ |
e2b40c23 | 1102 | #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */ |
2246281f | 1103 | tty.main.c_cc[VDSUSP] = CDISABLE; |
e2b40c23 | 1104 | #endif /* VDSUSP */ |
92c995de | 1105 | #ifdef VLNEXT |
2246281f | 1106 | tty.main.c_cc[VLNEXT] = CDISABLE; |
92c995de RS |
1107 | #endif /* VLNEXT */ |
1108 | #ifdef VREPRINT | |
2246281f | 1109 | tty.main.c_cc[VREPRINT] = CDISABLE; |
92c995de RS |
1110 | #endif /* VREPRINT */ |
1111 | #ifdef VWERASE | |
2246281f | 1112 | tty.main.c_cc[VWERASE] = CDISABLE; |
92c995de RS |
1113 | #endif /* VWERASE */ |
1114 | #ifdef VDISCARD | |
2246281f | 1115 | tty.main.c_cc[VDISCARD] = CDISABLE; |
92c995de | 1116 | #endif /* VDISCARD */ |
c179a6d1 | 1117 | |
2246281f KL |
1118 | if (tty_out->flow_control) |
1119 | { | |
421dd92f | 1120 | #ifdef VSTART |
2246281f | 1121 | tty.main.c_cc[VSTART] = '\021'; |
421dd92f RS |
1122 | #endif /* VSTART */ |
1123 | #ifdef VSTOP | |
2246281f | 1124 | tty.main.c_cc[VSTOP] = '\023'; |
421dd92f | 1125 | #endif /* VSTOP */ |
2246281f KL |
1126 | } |
1127 | else | |
1128 | { | |
c179a6d1 | 1129 | #ifdef VSTART |
2246281f | 1130 | tty.main.c_cc[VSTART] = CDISABLE; |
c179a6d1 RS |
1131 | #endif /* VSTART */ |
1132 | #ifdef VSTOP | |
2246281f | 1133 | tty.main.c_cc[VSTOP] = CDISABLE; |
c179a6d1 | 1134 | #endif /* VSTOP */ |
2246281f | 1135 | } |
86a5659e | 1136 | #endif /* mips or HAVE_TCATTR */ |
c179a6d1 | 1137 | |
86a5659e | 1138 | #ifdef AIX |
f5272227 KL |
1139 | tty.main.c_cc[VSTRT] = CDISABLE; |
1140 | tty.main.c_cc[VSTOP] = CDISABLE; | |
1141 | tty.main.c_cc[VSUSP] = CDISABLE; | |
1142 | tty.main.c_cc[VDSUSP] = CDISABLE; | |
2246281f KL |
1143 | if (tty_out->flow_control) |
1144 | { | |
ac567c95 | 1145 | #ifdef VSTART |
2246281f | 1146 | tty.main.c_cc[VSTART] = '\021'; |
ac567c95 RS |
1147 | #endif /* VSTART */ |
1148 | #ifdef VSTOP | |
2246281f | 1149 | tty.main.c_cc[VSTOP] = '\023'; |
ac567c95 | 1150 | #endif /* VSTOP */ |
2246281f KL |
1151 | } |
1152 | /* Also, PTY overloads NUL and BREAK. | |
1153 | don't ignore break, but don't signal either, so it looks like NUL. | |
1154 | This really serves a purpose only if running in an XTERM window | |
1155 | or via TELNET or the like, but does no harm elsewhere. */ | |
1156 | tty.main.c_iflag &= ~IGNBRK; | |
1157 | tty.main.c_iflag &= ~BRKINT; | |
86a5659e JB |
1158 | #endif |
1159 | #else /* if not HAVE_TERMIO */ | |
fe03522b | 1160 | #ifndef DOS_NT |
2246281f KL |
1161 | XSETINT (Vtty_erase_char, tty.main.sg_erase); |
1162 | tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS); | |
1163 | if (meta_key) | |
1164 | tty.main.sg_flags |= ANYP; | |
1165 | tty.main.sg_flags |= interrupt_input ? RAW : CBREAK; | |
fe03522b | 1166 | #endif /* not DOS_NT */ |
86a5659e JB |
1167 | #endif /* not HAVE_TERMIO */ |
1168 | ||
2246281f KL |
1169 | /* If going to use CBREAK mode, we must request C-g to interrupt |
1170 | and turn off start and stop chars, etc. If not going to use | |
1171 | CBREAK mode, do this anyway so as to turn off local flow | |
1172 | control for user coming over network on 4.2; in this case, | |
1173 | only t_stopc and t_startc really matter. */ | |
91bac16a | 1174 | #ifndef HAVE_TERMIO |
50b8cf60 | 1175 | #ifdef HAVE_TCHARS |
2246281f KL |
1176 | /* Note: if not using CBREAK mode, it makes no difference how we |
1177 | set this */ | |
1178 | tty.tchars = new_tchars; | |
1179 | tty.tchars.t_intrc = quit_char; | |
1180 | if (tty_out->flow_control) | |
1181 | { | |
1182 | tty.tchars.t_startc = '\021'; | |
1183 | tty.tchars.t_stopc = '\023'; | |
1184 | } | |
cf84bb53 | 1185 | |
2246281f | 1186 | tty.lmode = LDECCTQ | LLITOUT | LPASS8 | LNOFLSH | tty_out->old_tty.lmode; |
cf84bb53 | 1187 | |
50b8cf60 | 1188 | #endif /* HAVE_TCHARS */ |
91bac16a JB |
1189 | #endif /* not HAVE_TERMIO */ |
1190 | ||
50b8cf60 | 1191 | #ifdef HAVE_LTCHARS |
2246281f | 1192 | tty.ltchars = new_ltchars; |
50b8cf60 | 1193 | #endif /* HAVE_LTCHARS */ |
207bdbdb | 1194 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ |
2246281f KL |
1195 | if (!tty_out->term_initted) |
1196 | internal_terminal_init (); | |
4e389d32 | 1197 | dos_ttraw (tty_out); |
207bdbdb | 1198 | #endif |
91bac16a | 1199 | |
0b0d3e0b | 1200 | EMACS_SET_TTY (fileno (tty_out->input), &tty, 0); |
86a5659e | 1201 | |
2246281f KL |
1202 | /* This code added to insure that, if flow-control is not to be used, |
1203 | we have an unlocked terminal at the start. */ | |
91bac16a | 1204 | |
86a5659e | 1205 | #ifdef TCXONC |
0b0d3e0b | 1206 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TCXONC, 1); |
86a5659e | 1207 | #endif |
86a5659e | 1208 | #ifdef TIOCSTART |
0b0d3e0b | 1209 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TIOCSTART, 0); |
86a5659e | 1210 | #endif |
86a5659e | 1211 | |
f2a77c3a | 1212 | #if defined (HAVE_TERMIOS) || defined (HPUX) |
51417996 | 1213 | #ifdef TCOON |
0b0d3e0b | 1214 | if (!tty_out->flow_control) tcflow (fileno (tty_out->input), TCOON); |
d228f207 | 1215 | #endif |
51417996 | 1216 | #endif |
d228f207 | 1217 | |
86a5659e | 1218 | #ifdef F_SETFL |
eb8c3be9 | 1219 | #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */ |
2246281f | 1220 | if (interrupt_input) |
86a5659e | 1221 | { |
0b0d3e0b KL |
1222 | old_fcntl_owner[fileno (tty_out->input)] = |
1223 | fcntl (fileno (tty_out->input), F_GETOWN, 0); | |
1224 | fcntl (fileno (tty_out->input), F_SETOWN, getpid ()); | |
1225 | init_sigio (fileno (tty_out->input)); | |
7e5a23bd | 1226 | #ifdef HAVE_GPM |
75a8734b | 1227 | if (gpm_tty == tty_out) |
3e748bcb | 1228 | { |
75a8734b | 1229 | /* Arrange for mouse events to give us SIGIO signals. */ |
3e748bcb | 1230 | fcntl (gpm_fd, F_SETOWN, getpid ()); |
57669cf1 | 1231 | fcntl (gpm_fd, F_SETFL, fcntl (gpm_fd, F_GETFL, 0) | O_NONBLOCK); |
3e748bcb NR |
1232 | init_sigio (gpm_fd); |
1233 | } | |
7e5a23bd | 1234 | #endif /* HAVE_GPM */ |
86a5659e JB |
1235 | } |
1236 | #endif /* F_GETOWN */ | |
1237 | #endif /* F_SETFL */ | |
1238 | ||
86a5659e JB |
1239 | #ifdef _IOFBF |
1240 | /* This symbol is defined on recent USG systems. | |
1241 | Someone says without this call USG won't really buffer the file | |
1242 | even with a call to setbuf. */ | |
0b0d3e0b | 1243 | setvbuf (tty_out->output, (char *) _sobuf, _IOFBF, sizeof _sobuf); |
86a5659e | 1244 | #else |
0b0d3e0b | 1245 | setbuf (tty_out->output, (char *) _sobuf); |
86a5659e | 1246 | #endif |
4d553a13 | 1247 | |
69fb5031 JR |
1248 | if (tty_out->terminal->set_terminal_modes_hook) |
1249 | tty_out->terminal->set_terminal_modes_hook (tty_out->terminal); | |
4b311aaf | 1250 | |
9628b887 KL |
1251 | if (!tty_out->term_initted) |
1252 | { | |
1253 | Lisp_Object tail, frame; | |
1254 | FOR_EACH_FRAME (tail, frame) | |
1255 | { | |
daf01701 | 1256 | /* XXX This needs to be revised. */ |
9628b887 KL |
1257 | if (FRAME_TERMCAP_P (XFRAME (frame)) |
1258 | && FRAME_TTY (XFRAME (frame)) == tty_out) | |
1259 | init_frame_faces (XFRAME (frame)); | |
1260 | } | |
1261 | } | |
045942b2 | 1262 | |
9628b887 | 1263 | if (tty_out->term_initted && no_redraw_on_reenter) |
86a5659e | 1264 | { |
855a0da7 SM |
1265 | /* We used to call "direct_output_forward_char(0)" here, |
1266 | but it's not clear why, since it may not do anything anyway. */ | |
86a5659e JB |
1267 | } |
1268 | else | |
1269 | { | |
9628b887 | 1270 | Lisp_Object tail, frame; |
0137dbf7 | 1271 | frame_garbaged = 1; |
9628b887 KL |
1272 | FOR_EACH_FRAME (tail, frame) |
1273 | { | |
7ab98847 EZ |
1274 | if ((FRAME_TERMCAP_P (XFRAME (frame)) |
1275 | || FRAME_MSDOS_P (XFRAME (frame))) | |
9628b887 KL |
1276 | && FRAME_TTY (XFRAME (frame)) == tty_out) |
1277 | FRAME_GARBAGED_P (XFRAME (frame)) = 1; | |
1278 | } | |
86a5659e | 1279 | } |
91bac16a | 1280 | |
9628b887 | 1281 | tty_out->term_initted = 1; |
86a5659e JB |
1282 | } |
1283 | ||
1284 | /* Return nonzero if safe to use tabs in output. | |
1285 | At the time this is called, init_sys_modes has not been done yet. */ | |
177c0ea7 | 1286 | |
dfcf069d | 1287 | int |
16c290d8 | 1288 | tabs_safe_p (int fd) |
86a5659e | 1289 | { |
6548cf00 | 1290 | struct emacs_tty etty; |
91bac16a | 1291 | |
16c290d8 | 1292 | EMACS_GET_TTY (fd, &etty); |
6548cf00 | 1293 | return EMACS_TTY_TABS_OK (&etty); |
86a5659e | 1294 | } |
73d5358f | 1295 | \f |
86a5659e | 1296 | /* Get terminal size from system. |
73d5358f RS |
1297 | Store number of lines into *HEIGHTP and width into *WIDTHP. |
1298 | We store 0 if there's no valid information. */ | |
86a5659e | 1299 | |
08633194 | 1300 | void |
16c290d8 | 1301 | get_tty_size (int fd, int *widthp, int *heightp) |
86a5659e | 1302 | { |
86a5659e | 1303 | |
86a5659e | 1304 | #ifdef TIOCGWINSZ |
91bac16a JB |
1305 | |
1306 | /* BSD-style. */ | |
86a5659e | 1307 | struct winsize size; |
91bac16a | 1308 | |
16c290d8 | 1309 | if (ioctl (fd, TIOCGWINSZ, &size) == -1) |
91bac16a JB |
1310 | *widthp = *heightp = 0; |
1311 | else | |
1312 | { | |
1313 | *widthp = size.ws_col; | |
1314 | *heightp = size.ws_row; | |
1315 | } | |
1316 | ||
1317 | #else | |
1318 | #ifdef TIOCGSIZE | |
1319 | ||
1320 | /* SunOS - style. */ | |
177c0ea7 | 1321 | struct ttysize size; |
91bac16a | 1322 | |
16c290d8 | 1323 | if (ioctl (fd, TIOCGSIZE, &size) == -1) |
91bac16a JB |
1324 | *widthp = *heightp = 0; |
1325 | else | |
1326 | { | |
1327 | *widthp = size.ts_cols; | |
1328 | *heightp = size.ts_lines; | |
1329 | } | |
1330 | ||
207bdbdb RS |
1331 | #else |
1332 | #ifdef MSDOS | |
1333 | *widthp = ScreenCols (); | |
1334 | *heightp = ScreenRows (); | |
86a5659e JB |
1335 | #else /* system doesn't know size */ |
1336 | *widthp = 0; | |
1337 | *heightp = 0; | |
207bdbdb | 1338 | #endif |
91bac16a JB |
1339 | #endif /* not SunOS-style */ |
1340 | #endif /* not BSD-style */ | |
86a5659e | 1341 | } |
91bac16a | 1342 | |
73d5358f RS |
1343 | /* Set the logical window size associated with descriptor FD |
1344 | to HEIGHT and WIDTH. This is used mainly with ptys. */ | |
1345 | ||
1346 | int | |
971de7fb | 1347 | set_window_size (int fd, int height, int width) |
73d5358f RS |
1348 | { |
1349 | #ifdef TIOCSWINSZ | |
1350 | ||
1351 | /* BSD-style. */ | |
1352 | struct winsize size; | |
1353 | size.ws_row = height; | |
1354 | size.ws_col = width; | |
1355 | ||
1356 | if (ioctl (fd, TIOCSWINSZ, &size) == -1) | |
1357 | return 0; /* error */ | |
1358 | else | |
1359 | return 1; | |
1360 | ||
1361 | #else | |
1362 | #ifdef TIOCSSIZE | |
1363 | ||
1364 | /* SunOS - style. */ | |
177c0ea7 | 1365 | struct ttysize size; |
73d5358f RS |
1366 | size.ts_lines = height; |
1367 | size.ts_cols = width; | |
1368 | ||
1369 | if (ioctl (fd, TIOCGSIZE, &size) == -1) | |
1370 | return 0; | |
1371 | else | |
1372 | return 1; | |
1373 | #else | |
1374 | return -1; | |
1375 | #endif /* not SunOS-style */ | |
1376 | #endif /* not BSD-style */ | |
1377 | } | |
1378 | ||
86a5659e | 1379 | \f |
da8e1115 KL |
1380 | |
1381 | /* Prepare all terminal devices for exiting Emacs. */ | |
1382 | ||
28d440ab KL |
1383 | void |
1384 | reset_all_sys_modes (void) | |
1385 | { | |
28d7d09f | 1386 | struct tty_display_info *tty; |
16c290d8 | 1387 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 1388 | reset_sys_modes (tty); |
28d440ab KL |
1389 | } |
1390 | ||
0a125897 | 1391 | /* Prepare the terminal for closing it; move the cursor to the |
0137dbf7 | 1392 | bottom of the frame, turn off interrupt-driven I/O, etc. */ |
da8e1115 | 1393 | |
08633194 | 1394 | void |
971de7fb | 1395 | reset_sys_modes (struct tty_display_info *tty_out) |
86a5659e JB |
1396 | { |
1397 | if (noninteractive) | |
1398 | { | |
1399 | fflush (stdout); | |
1400 | return; | |
1401 | } | |
9628b887 | 1402 | if (!tty_out->term_initted) |
86a5659e | 1403 | return; |
da8e1115 | 1404 | |
0b0d3e0b KL |
1405 | if (!tty_out->output) |
1406 | return; /* The tty is suspended. */ | |
cf84bb53 | 1407 | |
da8e1115 KL |
1408 | /* Go to and clear the last line of the terminal. */ |
1409 | ||
0a125897 | 1410 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
cf84bb53 | 1411 | |
da8e1115 KL |
1412 | /* Code adapted from tty_clear_end_of_line. */ |
1413 | if (tty_out->TS_clr_line) | |
1414 | { | |
1415 | emacs_tputs (tty_out, tty_out->TS_clr_line, 1, cmputc); | |
1416 | } | |
1417 | else | |
1418 | { /* have to do it the hard way */ | |
1419 | int i; | |
ed8dad6b | 1420 | tty_turn_off_insert (tty_out); |
cf84bb53 | 1421 | |
da8e1115 | 1422 | for (i = curX (tty_out); i < FrameCols (tty_out) - 1; i++) |
0b0d3e0b KL |
1423 | { |
1424 | fputc (' ', tty_out->output); | |
1425 | } | |
da8e1115 | 1426 | } |
cf84bb53 | 1427 | |
0a125897 | 1428 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
819b8f00 | 1429 | fflush (tty_out->output); |
cf84bb53 | 1430 | |
69fb5031 JR |
1431 | if (tty_out->terminal->reset_terminal_modes_hook) |
1432 | tty_out->terminal->reset_terminal_modes_hook (tty_out->terminal); | |
2f98e6e3 | 1433 | |
2a633456 | 1434 | #ifdef BSD_SYSTEM |
86a5659e | 1435 | /* Avoid possible loss of output when changing terminal modes. */ |
0b0d3e0b | 1436 | fsync (fileno (tty_out->output)); |
86a5659e | 1437 | #endif |
91bac16a | 1438 | |
86a5659e | 1439 | #ifdef F_SETFL |
eb8c3be9 | 1440 | #ifdef F_SETOWN /* F_SETFL does not imply existence of F_SETOWN */ |
86a5659e JB |
1441 | if (interrupt_input) |
1442 | { | |
0b0d3e0b KL |
1443 | reset_sigio (fileno (tty_out->input)); |
1444 | fcntl (fileno (tty_out->input), F_SETOWN, | |
1445 | old_fcntl_owner[fileno (tty_out->input)]); | |
86a5659e JB |
1446 | } |
1447 | #endif /* F_SETOWN */ | |
a6b00318 | 1448 | #ifdef O_NDELAY |
0b0d3e0b KL |
1449 | fcntl (fileno (tty_out->input), F_SETFL, |
1450 | fcntl (fileno (tty_out->input), F_GETFL, 0) & ~O_NDELAY); | |
a6b00318 | 1451 | #endif |
86a5659e | 1452 | #endif /* F_SETFL */ |
91bac16a | 1453 | |
fca177d4 | 1454 | if (tty_out->old_tty) |
0b0d3e0b | 1455 | while (EMACS_SET_TTY (fileno (tty_out->input), |
fca177d4 | 1456 | tty_out->old_tty, 0) < 0 && errno == EINTR) |
7e32a4fb | 1457 | ; |
86a5659e | 1458 | |
207bdbdb RS |
1459 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
1460 | dos_ttcooked (); | |
1461 | #endif | |
1462 | ||
86a5659e JB |
1463 | } |
1464 | \f | |
1465 | #ifdef HAVE_PTYS | |
1466 | ||
1467 | /* Set up the proper status flags for use of a pty. */ | |
1468 | ||
08633194 | 1469 | void |
971de7fb | 1470 | setup_pty (int fd) |
86a5659e JB |
1471 | { |
1472 | /* I'm told that TOICREMOTE does not mean control chars | |
1473 | "can't be sent" but rather that they don't have | |
1474 | input-editing or signaling effects. | |
1475 | That should be good, because we have other ways | |
1476 | to do those things in Emacs. | |
1477 | However, telnet mode seems not to work on 4.2. | |
1478 | So TIOCREMOTE is turned off now. */ | |
1479 | ||
1480 | /* Under hp-ux, if TIOCREMOTE is turned on, some calls | |
1481 | will hang. In particular, the "timeout" feature (which | |
1482 | causes a read to return if there is no data available) | |
1483 | does this. Also it is known that telnet mode will hang | |
1484 | in such a way that Emacs must be stopped (perhaps this | |
1485 | is the same problem). | |
177c0ea7 | 1486 | |
86a5659e JB |
1487 | If TIOCREMOTE is turned off, then there is a bug in |
1488 | hp-ux which sometimes loses data. Apparently the | |
1489 | code which blocks the master process when the internal | |
1490 | buffer fills up does not work. Other than this, | |
1491 | though, everything else seems to work fine. | |
177c0ea7 | 1492 | |
86a5659e JB |
1493 | Since the latter lossage is more benign, we may as well |
1494 | lose that way. -- cph */ | |
1495 | #ifdef FIONBIO | |
bdee2ef3 | 1496 | #if defined(UNIX98_PTYS) |
86a5659e JB |
1497 | { |
1498 | int on = 1; | |
1499 | ioctl (fd, FIONBIO, &on); | |
1500 | } | |
1501 | #endif | |
1502 | #endif | |
86a5659e JB |
1503 | } |
1504 | #endif /* HAVE_PTYS */ | |
1505 | \f | |
c0c86835 KH |
1506 | /* init_system_name sets up the string for the Lisp function |
1507 | system-name to return. */ | |
86a5659e | 1508 | |
c0c86835 | 1509 | extern Lisp_Object Vsystem_name; |
86a5659e | 1510 | |
f8a80313 RS |
1511 | #ifdef HAVE_SOCKETS |
1512 | #include <sys/socket.h> | |
1513 | #include <netdb.h> | |
1514 | #endif /* HAVE_SOCKETS */ | |
f8a80313 | 1515 | |
8581cd64 KH |
1516 | #ifdef TRY_AGAIN |
1517 | #ifndef HAVE_H_ERRNO | |
1518 | extern int h_errno; | |
1519 | #endif | |
1520 | #endif /* TRY_AGAIN */ | |
1521 | ||
c0c86835 | 1522 | void |
971de7fb | 1523 | init_system_name (void) |
86a5659e | 1524 | { |
210b2b4f | 1525 | #ifndef HAVE_GETHOSTNAME |
c0c86835 KH |
1526 | struct utsname uts; |
1527 | uname (&uts); | |
1528 | Vsystem_name = build_string (uts.nodename); | |
67004ffb | 1529 | #else /* HAVE_GETHOSTNAME */ |
cc6e7269 | 1530 | unsigned int hostname_size = 256; |
c0c86835 KH |
1531 | char *hostname = (char *) alloca (hostname_size); |
1532 | ||
1533 | /* Try to get the host name; if the buffer is too short, try | |
1534 | again. Apparently, the only indication gethostname gives of | |
1535 | whether the buffer was large enough is the presence or absence | |
1536 | of a '\0' in the string. Eech. */ | |
1537 | for (;;) | |
1538 | { | |
1539 | gethostname (hostname, hostname_size - 1); | |
1540 | hostname[hostname_size - 1] = '\0'; | |
1541 | ||
1542 | /* Was the buffer large enough for the '\0'? */ | |
1543 | if (strlen (hostname) < hostname_size - 1) | |
1544 | break; | |
1545 | ||
1546 | hostname_size <<= 1; | |
1547 | hostname = (char *) alloca (hostname_size); | |
1548 | } | |
67004ffb | 1549 | #ifdef HAVE_SOCKETS |
c0c86835 KH |
1550 | /* Turn the hostname into the official, fully-qualified hostname. |
1551 | Don't do this if we're going to dump; this can confuse system | |
1552 | libraries on some machines and make the dumped emacs core dump. */ | |
67004ffb | 1553 | #ifndef CANNOT_DUMP |
c0c86835 | 1554 | if (initialized) |
67004ffb | 1555 | #endif /* not CANNOT_DUMP */ |
8966b757 | 1556 | if (! strchr (hostname, '.')) |
960d894c | 1557 | { |
960d894c | 1558 | int count; |
3d66b985 JD |
1559 | #ifdef HAVE_GETADDRINFO |
1560 | struct addrinfo *res; | |
1561 | struct addrinfo hints; | |
1562 | int ret; | |
1563 | ||
cf84bb53 | 1564 | memset (&hints, 0, sizeof (hints)); |
3d66b985 JD |
1565 | hints.ai_socktype = SOCK_STREAM; |
1566 | hints.ai_flags = AI_CANONNAME; | |
1567 | ||
960d894c KH |
1568 | for (count = 0;; count++) |
1569 | { | |
3d66b985 JD |
1570 | if ((ret = getaddrinfo (hostname, NULL, &hints, &res)) == 0 |
1571 | || ret != EAI_AGAIN) | |
1572 | break; | |
1573 | ||
1574 | if (count >= 5) | |
1575 | break; | |
1576 | Fsleep_for (make_number (1), Qnil); | |
1577 | } | |
1578 | ||
1579 | if (ret == 0) | |
1580 | { | |
1581 | struct addrinfo *it = res; | |
1582 | while (it) | |
1583 | { | |
1584 | char *fqdn = it->ai_canonname; | |
8966b757 | 1585 | if (fqdn && strchr (fqdn, '.') |
3d66b985 JD |
1586 | && strcmp (fqdn, "localhost.localdomain") != 0) |
1587 | break; | |
1588 | it = it->ai_next; | |
1589 | } | |
1590 | if (it) | |
1591 | { | |
1592 | hostname = alloca (strlen (it->ai_canonname) + 1); | |
1593 | strcpy (hostname, it->ai_canonname); | |
1594 | } | |
1595 | freeaddrinfo (res); | |
1596 | } | |
1597 | #else /* !HAVE_GETADDRINFO */ | |
1598 | struct hostent *hp; | |
1599 | for (count = 0;; count++) | |
1600 | { | |
1601 | ||
e24f1d55 | 1602 | #ifdef TRY_AGAIN |
960d894c | 1603 | h_errno = 0; |
e24f1d55 | 1604 | #endif |
960d894c | 1605 | hp = gethostbyname (hostname); |
efa04277 | 1606 | #ifdef TRY_AGAIN |
960d894c KH |
1607 | if (! (hp == 0 && h_errno == TRY_AGAIN)) |
1608 | #endif | |
3d66b985 | 1609 | |
960d894c | 1610 | break; |
3d66b985 | 1611 | |
960d894c KH |
1612 | if (count >= 5) |
1613 | break; | |
1614 | Fsleep_for (make_number (1), Qnil); | |
1615 | } | |
3d66b985 | 1616 | |
960d894c KH |
1617 | if (hp) |
1618 | { | |
1619 | char *fqdn = (char *) hp->h_name; | |
960d894c | 1620 | |
8966b757 | 1621 | if (!strchr (fqdn, '.')) |
960d894c KH |
1622 | { |
1623 | /* We still don't have a fully qualified domain name. | |
1624 | Try to find one in the list of alternate names */ | |
1625 | char **alias = hp->h_aliases; | |
923721f4 | 1626 | while (*alias |
8966b757 | 1627 | && (!strchr (*alias, '.') |
923721f4 | 1628 | || !strcmp (*alias, "localhost.localdomain"))) |
960d894c KH |
1629 | alias++; |
1630 | if (*alias) | |
1631 | fqdn = *alias; | |
1632 | } | |
1633 | hostname = fqdn; | |
960d894c | 1634 | } |
3d66b985 | 1635 | #endif /* !HAVE_GETADDRINFO */ |
960d894c | 1636 | } |
67004ffb | 1637 | #endif /* HAVE_SOCKETS */ |
c0c86835 | 1638 | Vsystem_name = build_string (hostname); |
67004ffb | 1639 | #endif /* HAVE_GETHOSTNAME */ |
c0c86835 KH |
1640 | { |
1641 | unsigned char *p; | |
d5db4077 | 1642 | for (p = SDATA (Vsystem_name); *p; p++) |
c0c86835 KH |
1643 | if (*p == ' ' || *p == '\t') |
1644 | *p = '-'; | |
1645 | } | |
67004ffb | 1646 | } |
86a5659e | 1647 | \f |
7964ba9e | 1648 | #ifndef MSDOS |
4624371d | 1649 | #if !defined (HAVE_SELECT) |
86a5659e | 1650 | |
86d1f23a KH |
1651 | #include "sysselect.h" |
1652 | #undef select | |
1653 | ||
1654 | #if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT) | |
86a5659e JB |
1655 | /* Cause explanatory error message at compile time, |
1656 | since the select emulation is not good enough for X. */ | |
1657 | int *x = &x_windows_lose_if_no_select_system_call; | |
1658 | #endif | |
1659 | ||
1660 | /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs | |
1661 | * Only checks read descriptors. | |
1662 | */ | |
1663 | /* How long to wait between checking fds in select */ | |
1664 | #define SELECT_PAUSE 1 | |
1665 | int select_alarmed; | |
1666 | ||
1667 | /* For longjmp'ing back to read_input_waiting. */ | |
1668 | ||
1669 | jmp_buf read_alarm_throw; | |
1670 | ||
1671 | /* Nonzero if the alarm signal should throw back to read_input_waiting. | |
1672 | The read_socket_hook function sets this to 1 while it is waiting. */ | |
1673 | ||
1674 | int read_alarm_should_throw; | |
1675 | ||
cf84bb53 JB |
1676 | void |
1677 | select_alarm (int ignore) | |
86a5659e JB |
1678 | { |
1679 | select_alarmed = 1; | |
86a5659e | 1680 | signal (SIGALRM, SIG_IGN); |
333f1b6f | 1681 | SIGNAL_THREAD_CHECK (SIGALRM); |
86a5659e JB |
1682 | if (read_alarm_should_throw) |
1683 | longjmp (read_alarm_throw, 1); | |
1684 | } | |
1685 | ||
9d9f1812 | 1686 | #ifndef WINDOWSNT |
86a5659e JB |
1687 | /* Only rfds are checked. */ |
1688 | int | |
cf84bb53 JB |
1689 | sys_select (int nfds, |
1690 | SELECT_TYPE *rfds, SELECT_TYPE *wfds, SELECT_TYPE *efds, | |
1691 | EMACS_TIME *timeout) | |
86a5659e | 1692 | { |
2246281f | 1693 | /* XXX This needs to be updated for multi-tty support. Is there |
cf84bb53 | 1694 | anybody who needs to emulate select these days? */ |
2246281f | 1695 | int ravail = 0; |
86d1f23a KH |
1696 | SELECT_TYPE orfds; |
1697 | int timeoutval; | |
1698 | int *local_timeout; | |
86a5659e | 1699 | extern int proc_buffered_char[]; |
86a5659e | 1700 | extern int process_tick, update_tick; |
86a5659e JB |
1701 | unsigned char buf; |
1702 | ||
86d1f23a KH |
1703 | #if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS) |
1704 | /* If we're using X, then the native select will work; we only need the | |
1705 | emulation for non-X usage. */ | |
2246281f | 1706 | if (!NILP (Vinitial_window_system)) |
86d1f23a KH |
1707 | return select (nfds, rfds, wfds, efds, timeout); |
1708 | #endif | |
1709 | timeoutval = timeout ? EMACS_SECS (*timeout) : 100000; | |
1710 | local_timeout = &timeoutval; | |
1711 | FD_ZERO (&orfds); | |
86a5659e JB |
1712 | if (rfds) |
1713 | { | |
1714 | orfds = *rfds; | |
86d1f23a | 1715 | FD_ZERO (rfds); |
86a5659e JB |
1716 | } |
1717 | if (wfds) | |
86d1f23a | 1718 | FD_ZERO (wfds); |
86a5659e | 1719 | if (efds) |
86d1f23a | 1720 | FD_ZERO (efds); |
86a5659e JB |
1721 | |
1722 | /* If we are looking only for the terminal, with no timeout, | |
1723 | just read it and wait -- that's more efficient. */ | |
86d1f23a KH |
1724 | if (*local_timeout == 100000 && process_tick == update_tick |
1725 | && FD_ISSET (0, &orfds)) | |
86a5659e | 1726 | { |
86d1f23a KH |
1727 | int fd; |
1728 | for (fd = 1; fd < nfds; ++fd) | |
1729 | if (FD_ISSET (fd, &orfds)) | |
1730 | goto hardway; | |
86a5659e JB |
1731 | if (! detect_input_pending ()) |
1732 | read_input_waiting (); | |
86d1f23a | 1733 | FD_SET (0, rfds); |
86a5659e JB |
1734 | return 1; |
1735 | } | |
1736 | ||
86d1f23a | 1737 | hardway: |
86a5659e JB |
1738 | /* Once a second, till the timer expires, check all the flagged read |
1739 | * descriptors to see if any input is available. If there is some then | |
1740 | * set the corresponding bit in the return copy of rfds. | |
177c0ea7 | 1741 | */ |
86a5659e JB |
1742 | while (1) |
1743 | { | |
86d1f23a | 1744 | register int to_check, fd; |
86a5659e JB |
1745 | |
1746 | if (rfds) | |
1747 | { | |
86d1f23a | 1748 | for (to_check = nfds, fd = 0; --to_check >= 0; fd++) |
86a5659e | 1749 | { |
86d1f23a | 1750 | if (FD_ISSET (fd, &orfds)) |
86a5659e JB |
1751 | { |
1752 | int avail = 0, status = 0; | |
1753 | ||
86d1f23a | 1754 | if (fd == 0) |
86a5659e JB |
1755 | avail = detect_input_pending (); /* Special keyboard handler */ |
1756 | else | |
1757 | { | |
1758 | #ifdef FIONREAD | |
1759 | status = ioctl (fd, FIONREAD, &avail); | |
1760 | #else /* no FIONREAD */ | |
1761 | /* Hoping it will return -1 if nothing available | |
1762 | or 0 if all 0 chars requested are read. */ | |
1763 | if (proc_buffered_char[fd] >= 0) | |
1764 | avail = 1; | |
1765 | else | |
1766 | { | |
1767 | avail = read (fd, &buf, 1); | |
1768 | if (avail > 0) | |
1769 | proc_buffered_char[fd] = buf; | |
1770 | } | |
1771 | #endif /* no FIONREAD */ | |
1772 | } | |
1773 | if (status >= 0 && avail > 0) | |
1774 | { | |
86d1f23a | 1775 | FD_SET (fd, rfds); |
86a5659e JB |
1776 | ravail++; |
1777 | } | |
1778 | } | |
1779 | } | |
1780 | } | |
1781 | if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick) | |
1782 | break; | |
ffdcc91d GM |
1783 | |
1784 | turn_on_atimers (0); | |
1785 | signal (SIGALRM, select_alarm); | |
86a5659e JB |
1786 | select_alarmed = 0; |
1787 | alarm (SELECT_PAUSE); | |
177c0ea7 | 1788 | |
86a5659e JB |
1789 | /* Wait for a SIGALRM (or maybe a SIGTINT) */ |
1790 | while (select_alarmed == 0 && *local_timeout != 0 | |
1791 | && process_tick == update_tick) | |
1792 | { | |
1793 | /* If we are interested in terminal input, | |
1794 | wait by reading the terminal. | |
1795 | That makes instant wakeup for terminal input at least. */ | |
86d1f23a | 1796 | if (FD_ISSET (0, &orfds)) |
86a5659e JB |
1797 | { |
1798 | read_input_waiting (); | |
1799 | if (detect_input_pending ()) | |
1800 | select_alarmed = 1; | |
1801 | } | |
1802 | else | |
1803 | pause (); | |
1804 | } | |
1805 | (*local_timeout) -= SELECT_PAUSE; | |
177c0ea7 | 1806 | |
ffdcc91d GM |
1807 | /* Reset the old alarm if there was one. */ |
1808 | turn_on_atimers (1); | |
177c0ea7 | 1809 | |
86a5659e JB |
1810 | if (*local_timeout == 0) /* Stop on timer being cleared */ |
1811 | break; | |
1812 | } | |
1813 | return ravail; | |
1814 | } | |
30790a37 | 1815 | #endif /* not WINDOWSNT */ |
86a5659e JB |
1816 | |
1817 | /* Read keyboard input into the standard buffer, | |
1818 | waiting for at least one character. */ | |
1819 | ||
dfcf069d | 1820 | void |
cf84bb53 | 1821 | read_input_waiting (void) |
86a5659e | 1822 | { |
2246281f KL |
1823 | /* XXX This needs to be updated for multi-tty support. Is there |
1824 | anybody who needs to emulate select these days? */ | |
34567704 | 1825 | int nread, i; |
86a5659e JB |
1826 | |
1827 | if (read_socket_hook) | |
1828 | { | |
9f893fc6 KS |
1829 | struct input_event hold_quit; |
1830 | ||
1831 | EVENT_INIT (hold_quit); | |
1832 | hold_quit.kind = NO_EVENT; | |
1833 | ||
86a5659e JB |
1834 | read_alarm_should_throw = 0; |
1835 | if (! setjmp (read_alarm_throw)) | |
9f893fc6 | 1836 | nread = (*read_socket_hook) (0, 1, &hold_quit); |
86a5659e JB |
1837 | else |
1838 | nread = -1; | |
f4a7e5bd | 1839 | |
9f893fc6 KS |
1840 | if (hold_quit.kind != NO_EVENT) |
1841 | kbd_buffer_store_event (&hold_quit); | |
86a5659e JB |
1842 | } |
1843 | else | |
86a5659e | 1844 | { |
50acda85 | 1845 | struct input_event e; |
f4a7e5bd RS |
1846 | char buf[3]; |
1847 | nread = read (fileno (stdin), buf, 1); | |
50acda85 | 1848 | EVENT_INIT (e); |
f4a7e5bd RS |
1849 | |
1850 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
e43bd4f5 | 1851 | e.kind = ASCII_KEYSTROKE_EVENT; |
2d064114 | 1852 | e.frame_or_window = selected_frame; |
f4a7e5bd RS |
1853 | e.modifiers = 0; |
1854 | for (i = 0; i < nread; i++) | |
a00d5589 | 1855 | { |
f4a7e5bd RS |
1856 | /* Convert chars > 0177 to meta events if desired. |
1857 | We do this under the same conditions that read_avail_input does. */ | |
1858 | if (read_socket_hook == 0) | |
1859 | { | |
1860 | /* If the user says she has a meta key, then believe her. */ | |
1861 | if (meta_key == 1 && (buf[i] & 0x80)) | |
1862 | e.modifiers = meta_modifier; | |
1863 | if (meta_key != 2) | |
1864 | buf[i] &= ~0x80; | |
1865 | } | |
b95520f5 | 1866 | |
c81d47b4 | 1867 | XSETINT (e.code, buf[i]); |
f4a7e5bd RS |
1868 | kbd_buffer_store_event (&e); |
1869 | /* Don't look at input that follows a C-g too closely. | |
1870 | This reduces lossage due to autorepeat on C-g. */ | |
1871 | if (buf[i] == quit_char) | |
1872 | break; | |
1873 | } | |
86a5659e JB |
1874 | } |
1875 | } | |
1876 | ||
4624371d | 1877 | #if !defined (HAVE_SELECT) |
819b8f00 KL |
1878 | #define select sys_select |
1879 | #endif | |
1880 | ||
86a5659e | 1881 | #endif /* not HAVE_SELECT */ |
7964ba9e | 1882 | #endif /* not MSDOS */ |
86a5659e | 1883 | \f |
86a5659e JB |
1884 | /* POSIX signals support - DJB */ |
1885 | /* Anyone with POSIX signals should have ANSI C declarations */ | |
1886 | ||
c639b0e3 | 1887 | sigset_t empty_mask, full_mask; |
86a5659e | 1888 | |
d6dae14b EZ |
1889 | #ifndef WINDOWSNT |
1890 | ||
86a5659e JB |
1891 | signal_handler_t |
1892 | sys_signal (int signal_number, signal_handler_t action) | |
1893 | { | |
c639b0e3 | 1894 | struct sigaction new_action, old_action; |
86a5659e | 1895 | sigemptyset (&new_action.sa_mask); |
e5c99298 | 1896 | new_action.sa_handler = action; |
ef874e3d AS |
1897 | new_action.sa_flags = 0; |
1898 | #if defined (SA_RESTART) | |
25ab68af | 1899 | /* Emacs mostly works better with restartable system services. If this |
55fafcf0 RS |
1900 | flag exists, we probably want to turn it on here. |
1901 | However, on some systems this resets the timeout of `select' | |
1902 | which means that `select' never finishes if it keeps getting signals. | |
1903 | BROKEN_SA_RESTART is defined on those systems. */ | |
275464e7 SM |
1904 | /* It's not clear why the comment above says "mostly works better". --Stef |
1905 | When SYNC_INPUT is set, we don't want SA_RESTART because we need to poll | |
1906 | for pending input so we need long-running syscalls to be interrupted | |
1907 | after a signal that sets the interrupt_input_pending flag. */ | |
766f52ec AS |
1908 | /* Non-interactive keyboard input goes through stdio, where we always |
1909 | want restartable system calls. */ | |
ef874e3d AS |
1910 | # if defined (BROKEN_SA_RESTART) || defined(SYNC_INPUT) |
1911 | if (noninteractive) | |
1912 | # endif | |
1913 | new_action.sa_flags = SA_RESTART; | |
25ab68af | 1914 | #endif |
d32b2f3c | 1915 | sigaction (signal_number, &new_action, &old_action); |
e5c99298 | 1916 | return (old_action.sa_handler); |
86a5659e JB |
1917 | } |
1918 | ||
d6dae14b EZ |
1919 | #endif /* WINDOWSNT */ |
1920 | ||
e065a56e JB |
1921 | #ifndef __GNUC__ |
1922 | /* If we're compiling with GCC, we don't need this function, since it | |
1923 | can be written as a macro. */ | |
1924 | sigset_t | |
1925 | sys_sigmask (int sig) | |
1926 | { | |
1927 | sigset_t mask; | |
1928 | sigemptyset (&mask); | |
1929 | sigaddset (&mask, sig); | |
1930 | return mask; | |
1931 | } | |
1932 | #endif | |
1933 | ||
86a5659e JB |
1934 | /* I'd like to have these guys return pointers to the mask storage in here, |
1935 | but there'd be trouble if the code was saving multiple masks. I'll be | |
1936 | safe and pass the structure. It normally won't be more than 2 bytes | |
1937 | anyhow. - DJB */ | |
1938 | ||
1939 | sigset_t | |
1940 | sys_sigblock (sigset_t new_mask) | |
1941 | { | |
1942 | sigset_t old_mask; | |
1943 | sigprocmask (SIG_BLOCK, &new_mask, &old_mask); | |
1944 | return (old_mask); | |
1945 | } | |
1946 | ||
1947 | sigset_t | |
1948 | sys_sigunblock (sigset_t new_mask) | |
1949 | { | |
1950 | sigset_t old_mask; | |
1951 | sigprocmask (SIG_UNBLOCK, &new_mask, &old_mask); | |
1952 | return (old_mask); | |
1953 | } | |
1954 | ||
1955 | sigset_t | |
1956 | sys_sigsetmask (sigset_t new_mask) | |
1957 | { | |
1958 | sigset_t old_mask; | |
1959 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); | |
1960 | return (old_mask); | |
1961 | } | |
1962 | ||
86a5659e | 1963 | \f |
b80263be | 1964 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
1965 | static char *my_sys_siglist[NSIG]; |
1966 | # ifdef sys_siglist | |
1967 | # undef sys_siglist | |
1968 | # endif | |
1969 | # define sys_siglist my_sys_siglist | |
1970 | #endif | |
1971 | ||
1972 | void | |
971de7fb | 1973 | init_signals (void) |
ca9c0567 | 1974 | { |
ca9c0567 PE |
1975 | sigemptyset (&empty_mask); |
1976 | sigfillset (&full_mask); | |
ca9c0567 | 1977 | |
b80263be | 1978 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
1979 | if (! initialized) |
1980 | { | |
1981 | # ifdef SIGABRT | |
1982 | sys_siglist[SIGABRT] = "Aborted"; | |
1983 | # endif | |
1984 | # ifdef SIGAIO | |
1985 | sys_siglist[SIGAIO] = "LAN I/O interrupt"; | |
1986 | # endif | |
1987 | # ifdef SIGALRM | |
1988 | sys_siglist[SIGALRM] = "Alarm clock"; | |
1989 | # endif | |
1990 | # ifdef SIGBUS | |
1991 | sys_siglist[SIGBUS] = "Bus error"; | |
1992 | # endif | |
1993 | # ifdef SIGCLD | |
1994 | sys_siglist[SIGCLD] = "Child status changed"; | |
1995 | # endif | |
1996 | # ifdef SIGCHLD | |
1997 | sys_siglist[SIGCHLD] = "Child status changed"; | |
1998 | # endif | |
1999 | # ifdef SIGCONT | |
2000 | sys_siglist[SIGCONT] = "Continued"; | |
2001 | # endif | |
2002 | # ifdef SIGDANGER | |
2003 | sys_siglist[SIGDANGER] = "Swap space dangerously low"; | |
2004 | # endif | |
2005 | # ifdef SIGDGNOTIFY | |
2006 | sys_siglist[SIGDGNOTIFY] = "Notification message in queue"; | |
2007 | # endif | |
2008 | # ifdef SIGEMT | |
2009 | sys_siglist[SIGEMT] = "Emulation trap"; | |
2010 | # endif | |
2011 | # ifdef SIGFPE | |
2012 | sys_siglist[SIGFPE] = "Arithmetic exception"; | |
2013 | # endif | |
2014 | # ifdef SIGFREEZE | |
2015 | sys_siglist[SIGFREEZE] = "SIGFREEZE"; | |
2016 | # endif | |
2017 | # ifdef SIGGRANT | |
2018 | sys_siglist[SIGGRANT] = "Monitor mode granted"; | |
2019 | # endif | |
2020 | # ifdef SIGHUP | |
2021 | sys_siglist[SIGHUP] = "Hangup"; | |
2022 | # endif | |
2023 | # ifdef SIGILL | |
2024 | sys_siglist[SIGILL] = "Illegal instruction"; | |
2025 | # endif | |
2026 | # ifdef SIGINT | |
2027 | sys_siglist[SIGINT] = "Interrupt"; | |
2028 | # endif | |
2029 | # ifdef SIGIO | |
2030 | sys_siglist[SIGIO] = "I/O possible"; | |
2031 | # endif | |
2032 | # ifdef SIGIOINT | |
2033 | sys_siglist[SIGIOINT] = "I/O intervention required"; | |
2034 | # endif | |
2035 | # ifdef SIGIOT | |
2036 | sys_siglist[SIGIOT] = "IOT trap"; | |
2037 | # endif | |
2038 | # ifdef SIGKILL | |
2039 | sys_siglist[SIGKILL] = "Killed"; | |
2040 | # endif | |
2041 | # ifdef SIGLOST | |
2042 | sys_siglist[SIGLOST] = "Resource lost"; | |
2043 | # endif | |
2044 | # ifdef SIGLWP | |
2045 | sys_siglist[SIGLWP] = "SIGLWP"; | |
2046 | # endif | |
2047 | # ifdef SIGMSG | |
2048 | sys_siglist[SIGMSG] = "Monitor mode data available"; | |
2049 | # endif | |
2050 | # ifdef SIGPHONE | |
2051 | sys_siglist[SIGWIND] = "SIGPHONE"; | |
2052 | # endif | |
2053 | # ifdef SIGPIPE | |
2054 | sys_siglist[SIGPIPE] = "Broken pipe"; | |
2055 | # endif | |
2056 | # ifdef SIGPOLL | |
2057 | sys_siglist[SIGPOLL] = "Pollable event occurred"; | |
2058 | # endif | |
2059 | # ifdef SIGPROF | |
2060 | sys_siglist[SIGPROF] = "Profiling timer expired"; | |
2061 | # endif | |
2062 | # ifdef SIGPTY | |
2063 | sys_siglist[SIGPTY] = "PTY I/O interrupt"; | |
2064 | # endif | |
2065 | # ifdef SIGPWR | |
2066 | sys_siglist[SIGPWR] = "Power-fail restart"; | |
2067 | # endif | |
2068 | # ifdef SIGQUIT | |
2069 | sys_siglist[SIGQUIT] = "Quit"; | |
2070 | # endif | |
2071 | # ifdef SIGRETRACT | |
2072 | sys_siglist[SIGRETRACT] = "Need to relinguish monitor mode"; | |
2073 | # endif | |
2074 | # ifdef SIGSAK | |
2075 | sys_siglist[SIGSAK] = "Secure attention"; | |
2076 | # endif | |
2077 | # ifdef SIGSEGV | |
2078 | sys_siglist[SIGSEGV] = "Segmentation violation"; | |
2079 | # endif | |
2080 | # ifdef SIGSOUND | |
2081 | sys_siglist[SIGSOUND] = "Sound completed"; | |
2082 | # endif | |
2083 | # ifdef SIGSTOP | |
2084 | sys_siglist[SIGSTOP] = "Stopped (signal)"; | |
2085 | # endif | |
2086 | # ifdef SIGSTP | |
2087 | sys_siglist[SIGSTP] = "Stopped (user)"; | |
2088 | # endif | |
2089 | # ifdef SIGSYS | |
2090 | sys_siglist[SIGSYS] = "Bad argument to system call"; | |
2091 | # endif | |
2092 | # ifdef SIGTERM | |
2093 | sys_siglist[SIGTERM] = "Terminated"; | |
2094 | # endif | |
2095 | # ifdef SIGTHAW | |
2096 | sys_siglist[SIGTHAW] = "SIGTHAW"; | |
2097 | # endif | |
2098 | # ifdef SIGTRAP | |
2099 | sys_siglist[SIGTRAP] = "Trace/breakpoint trap"; | |
2100 | # endif | |
2101 | # ifdef SIGTSTP | |
2102 | sys_siglist[SIGTSTP] = "Stopped (user)"; | |
2103 | # endif | |
2104 | # ifdef SIGTTIN | |
2105 | sys_siglist[SIGTTIN] = "Stopped (tty input)"; | |
2106 | # endif | |
2107 | # ifdef SIGTTOU | |
2108 | sys_siglist[SIGTTOU] = "Stopped (tty output)"; | |
2109 | # endif | |
2110 | # ifdef SIGURG | |
2111 | sys_siglist[SIGURG] = "Urgent I/O condition"; | |
2112 | # endif | |
2113 | # ifdef SIGUSR1 | |
2114 | sys_siglist[SIGUSR1] = "User defined signal 1"; | |
2115 | # endif | |
2116 | # ifdef SIGUSR2 | |
2117 | sys_siglist[SIGUSR2] = "User defined signal 2"; | |
2118 | # endif | |
2119 | # ifdef SIGVTALRM | |
2120 | sys_siglist[SIGVTALRM] = "Virtual timer expired"; | |
2121 | # endif | |
2122 | # ifdef SIGWAITING | |
2123 | sys_siglist[SIGWAITING] = "Process's LWPs are blocked"; | |
2124 | # endif | |
2125 | # ifdef SIGWINCH | |
2126 | sys_siglist[SIGWINCH] = "Window size changed"; | |
2127 | # endif | |
2128 | # ifdef SIGWIND | |
2129 | sys_siglist[SIGWIND] = "SIGWIND"; | |
2130 | # endif | |
2131 | # ifdef SIGXCPU | |
2132 | sys_siglist[SIGXCPU] = "CPU time limit exceeded"; | |
2133 | # endif | |
2134 | # ifdef SIGXFSZ | |
2135 | sys_siglist[SIGXFSZ] = "File size limit exceeded"; | |
2136 | # endif | |
2137 | } | |
b80263be | 2138 | #endif /* !defined HAVE_STRSIGNAL && !defined HAVE_DECL_SYS_SIGLIST */ |
ca9c0567 PE |
2139 | } |
2140 | \f | |
9927a7b1 | 2141 | #ifndef HAVE_RANDOM |
4bb8c8b7 KH |
2142 | #ifdef random |
2143 | #define HAVE_RANDOM | |
2144 | #endif | |
2145 | #endif | |
2146 | ||
2147 | /* Figure out how many bits the system's random number generator uses. | |
2148 | `random' and `lrand48' are assumed to return 31 usable bits. | |
2149 | BSD `rand' returns a 31 bit value but the low order bits are unusable; | |
2150 | so we'll shift it and treat it like the 15-bit USG `rand'. */ | |
2151 | ||
2152 | #ifndef RAND_BITS | |
2153 | # ifdef HAVE_RANDOM | |
2154 | # define RAND_BITS 31 | |
2155 | # else /* !HAVE_RANDOM */ | |
2156 | # ifdef HAVE_LRAND48 | |
2157 | # define RAND_BITS 31 | |
2158 | # define random lrand48 | |
2159 | # else /* !HAVE_LRAND48 */ | |
2160 | # define RAND_BITS 15 | |
2161 | # if RAND_MAX == 32767 | |
2162 | # define random rand | |
2163 | # else /* RAND_MAX != 32767 */ | |
2164 | # if RAND_MAX == 2147483647 | |
2165 | # define random() (rand () >> 16) | |
2166 | # else /* RAND_MAX != 2147483647 */ | |
2167 | # ifdef USG | |
2168 | # define random rand | |
2169 | # else | |
2170 | # define random() (rand () >> 16) | |
2a633456 | 2171 | # endif /* !USG */ |
4bb8c8b7 KH |
2172 | # endif /* RAND_MAX != 2147483647 */ |
2173 | # endif /* RAND_MAX != 32767 */ | |
2174 | # endif /* !HAVE_LRAND48 */ | |
2175 | # endif /* !HAVE_RANDOM */ | |
2176 | #endif /* !RAND_BITS */ | |
2e46c7c6 | 2177 | |
4bb8c8b7 | 2178 | void |
971de7fb | 2179 | seed_random (long int arg) |
86a5659e | 2180 | { |
4bb8c8b7 KH |
2181 | #ifdef HAVE_RANDOM |
2182 | srandom ((unsigned int)arg); | |
f8b53a82 | 2183 | #else |
4bb8c8b7 | 2184 | # ifdef HAVE_LRAND48 |
76425a49 | 2185 | srand48 (arg); |
4bb8c8b7 KH |
2186 | # else |
2187 | srand ((unsigned int)arg); | |
2188 | # endif | |
2e46c7c6 | 2189 | #endif |
86a5659e JB |
2190 | } |
2191 | ||
4bb8c8b7 KH |
2192 | /* |
2193 | * Build a full Emacs-sized word out of whatever we've got. | |
2194 | * This suffices even for a 64-bit architecture with a 15-bit rand. | |
2195 | */ | |
2196 | long | |
971de7fb | 2197 | get_random (void) |
4bb8c8b7 KH |
2198 | { |
2199 | long val = random (); | |
2200 | #if VALBITS > RAND_BITS | |
2201 | val = (val << RAND_BITS) ^ random (); | |
2202 | #if VALBITS > 2*RAND_BITS | |
2203 | val = (val << RAND_BITS) ^ random (); | |
2204 | #if VALBITS > 3*RAND_BITS | |
2205 | val = (val << RAND_BITS) ^ random (); | |
2206 | #if VALBITS > 4*RAND_BITS | |
2207 | val = (val << RAND_BITS) ^ random (); | |
2208 | #endif /* need at least 5 */ | |
2209 | #endif /* need at least 4 */ | |
2210 | #endif /* need at least 3 */ | |
2211 | #endif /* need at least 2 */ | |
2212 | return val & ((1L << VALBITS) - 1); | |
2213 | } | |
7088d1ca RM |
2214 | |
2215 | #ifndef HAVE_STRERROR | |
fe03522b | 2216 | #ifndef WINDOWSNT |
7088d1ca RM |
2217 | char * |
2218 | strerror (errnum) | |
2219 | int errnum; | |
2220 | { | |
2221 | extern char *sys_errlist[]; | |
2222 | extern int sys_nerr; | |
2223 | ||
2224 | if (errnum >= 0 && errnum < sys_nerr) | |
2225 | return sys_errlist[errnum]; | |
2226 | return (char *) "Unknown error"; | |
2227 | } | |
fe03522b | 2228 | #endif /* not WINDOWSNT */ |
7088d1ca | 2229 | #endif /* ! HAVE_STRERROR */ |
86a5659e | 2230 | \f |
86a5659e | 2231 | int |
971de7fb | 2232 | emacs_open (const char *path, int oflag, int mode) |
86a5659e JB |
2233 | { |
2234 | register int rtnval; | |
68c45bf0 | 2235 | |
86a5659e | 2236 | while ((rtnval = open (path, oflag, mode)) == -1 |
275464e7 SM |
2237 | && (errno == EINTR)) |
2238 | QUIT; | |
86a5659e JB |
2239 | return (rtnval); |
2240 | } | |
2241 | ||
dfcf069d | 2242 | int |
971de7fb | 2243 | emacs_close (int fd) |
86a5659e | 2244 | { |
fe111daf | 2245 | int did_retry = 0; |
86a5659e JB |
2246 | register int rtnval; |
2247 | ||
2248 | while ((rtnval = close (fd)) == -1 | |
fe111daf KH |
2249 | && (errno == EINTR)) |
2250 | did_retry = 1; | |
2251 | ||
2252 | /* If close is interrupted SunOS 4.1 may or may not have closed the | |
2253 | file descriptor. If it did the second close will fail with | |
2254 | errno = EBADF. That means we have succeeded. */ | |
2255 | if (rtnval == -1 && did_retry && errno == EBADF) | |
2256 | return 0; | |
2257 | ||
86a5659e JB |
2258 | return rtnval; |
2259 | } | |
2260 | ||
86a5659e | 2261 | int |
971de7fb | 2262 | emacs_read (int fildes, char *buf, unsigned int nbyte) |
86a5659e JB |
2263 | { |
2264 | register int rtnval; | |
177c0ea7 | 2265 | |
86a5659e | 2266 | while ((rtnval = read (fildes, buf, nbyte)) == -1 |
275464e7 SM |
2267 | && (errno == EINTR)) |
2268 | QUIT; | |
86a5659e JB |
2269 | return (rtnval); |
2270 | } | |
2271 | ||
2272 | int | |
971de7fb | 2273 | emacs_write (int fildes, const char *buf, unsigned int nbyte) |
86a5659e | 2274 | { |
b95520f5 | 2275 | register int rtnval, bytes_written; |
86a5659e | 2276 | |
b95520f5 BF |
2277 | bytes_written = 0; |
2278 | ||
2279 | while (nbyte > 0) | |
2280 | { | |
2281 | rtnval = write (fildes, buf, nbyte); | |
2282 | ||
2283 | if (rtnval == -1) | |
2284 | { | |
2285 | if (errno == EINTR) | |
77220eeb SM |
2286 | { |
2287 | #ifdef SYNC_INPUT | |
2288 | /* I originally used `QUIT' but that might causes files to | |
2289 | be truncated if you hit C-g in the middle of it. --Stef */ | |
55310b94 | 2290 | process_pending_signals (); |
77220eeb SM |
2291 | #endif |
2292 | continue; | |
2293 | } | |
b95520f5 | 2294 | else |
aa670904 | 2295 | return (bytes_written ? bytes_written : -1); |
b95520f5 BF |
2296 | } |
2297 | ||
2298 | buf += rtnval; | |
2299 | nbyte -= rtnval; | |
2300 | bytes_written += rtnval; | |
2301 | } | |
2302 | return (bytes_written); | |
86a5659e | 2303 | } |
86a5659e JB |
2304 | \f |
2305 | #ifdef USG | |
2306 | /* | |
2307 | * All of the following are for USG. | |
2308 | * | |
2309 | * On USG systems the system calls are INTERRUPTIBLE by signals | |
2310 | * that the user program has elected to catch. Thus the system call | |
2311 | * must be retried in these cases. To handle this without massive | |
2312 | * changes in the source code, we remap the standard system call names | |
2313 | * to names for our own functions in sysdep.c that do the system call | |
2314 | * with retries. Actually, for portability reasons, it is good | |
2315 | * programming practice, as this example shows, to limit all actual | |
eb8c3be9 | 2316 | * system calls to a single occurrence in the source. Sure, this |
86a5659e JB |
2317 | * adds an extra level of function call overhead but it is almost |
2318 | * always negligible. Fred Fish, Unisoft Systems Inc. | |
2319 | */ | |
2320 | ||
86a5659e JB |
2321 | /* |
2322 | * Warning, this function may not duplicate 4.2 action properly | |
2323 | * under error conditions. | |
2324 | */ | |
2325 | ||
2326 | #ifndef MAXPATHLEN | |
2327 | /* In 4.1, param.h fails to define this. */ | |
2328 | #define MAXPATHLEN 1024 | |
2329 | #endif | |
2330 | ||
2331 | #ifndef HAVE_GETWD | |
2332 | ||
2333 | char * | |
cf84bb53 | 2334 | getwd (char *pathname) |
86a5659e JB |
2335 | { |
2336 | char *npath, *spath; | |
cf84bb53 | 2337 | extern char *getcwd (char *, size_t); |
86a5659e | 2338 | |
9ac0d9e0 | 2339 | BLOCK_INPUT; /* getcwd uses malloc */ |
86a5659e | 2340 | spath = npath = getcwd ((char *) 0, MAXPATHLEN); |
f4a7e5bd | 2341 | if (spath == 0) |
18b6bc73 GM |
2342 | { |
2343 | UNBLOCK_INPUT; | |
2344 | return spath; | |
2345 | } | |
86a5659e JB |
2346 | /* On Altos 3068, getcwd can return @hostname/dir, so discard |
2347 | up to first slash. Should be harmless on other systems. */ | |
2348 | while (*npath && *npath != '/') | |
2349 | npath++; | |
2350 | strcpy (pathname, npath); | |
2351 | free (spath); /* getcwd uses malloc */ | |
9ac0d9e0 | 2352 | UNBLOCK_INPUT; |
86a5659e JB |
2353 | return pathname; |
2354 | } | |
2355 | ||
2356 | #endif /* HAVE_GETWD */ | |
2357 | ||
2358 | /* | |
2359 | * Emulate rename using unlink/link. Note that this is | |
2360 | * only partially correct. Also, doesn't enforce restriction | |
2361 | * that files be of same type (regular->regular, dir->dir, etc). | |
2362 | */ | |
2363 | ||
4746118a JB |
2364 | #ifndef HAVE_RENAME |
2365 | ||
cf84bb53 JB |
2366 | int |
2367 | rename (const char *from, const char *to) | |
86a5659e JB |
2368 | { |
2369 | if (access (from, 0) == 0) | |
2370 | { | |
2371 | unlink (to); | |
2372 | if (link (from, to) == 0) | |
2373 | if (unlink (from) == 0) | |
2374 | return (0); | |
2375 | } | |
2376 | return (-1); | |
2377 | } | |
2378 | ||
4746118a JB |
2379 | #endif |
2380 | ||
86a5659e | 2381 | |
69ab3201 | 2382 | #if defined(HPUX) && !defined(HAVE_PERROR) |
86a5659e JB |
2383 | |
2384 | /* HPUX curses library references perror, but as far as we know | |
2385 | it won't be called. Anyway this definition will do for now. */ | |
2386 | ||
cf84bb53 JB |
2387 | void |
2388 | perror (void) | |
86a5659e JB |
2389 | { |
2390 | } | |
69ab3201 | 2391 | #endif /* HPUX and not HAVE_PERROR */ |
86a5659e JB |
2392 | |
2393 | #ifndef HAVE_DUP2 | |
2394 | ||
2395 | /* | |
2396 | * Emulate BSD dup2. First close newd if it already exists. | |
2397 | * Then, attempt to dup oldd. If not successful, call dup2 recursively | |
2398 | * until we are, then close the unsuccessful ones. | |
2399 | */ | |
2400 | ||
cf84bb53 JB |
2401 | int |
2402 | dup2 (int oldd, int newd) | |
86a5659e JB |
2403 | { |
2404 | register int fd, ret; | |
177c0ea7 | 2405 | |
68c45bf0 | 2406 | emacs_close (newd); |
86a5659e JB |
2407 | |
2408 | #ifdef F_DUPFD | |
68c45bf0 | 2409 | return fcntl (oldd, F_DUPFD, newd); |
86a5659e JB |
2410 | #else |
2411 | fd = dup (old); | |
2412 | if (fd == -1) | |
2413 | return -1; | |
2414 | if (fd == new) | |
2415 | return new; | |
2416 | ret = dup2 (old,new); | |
68c45bf0 | 2417 | emacs_close (fd); |
86a5659e JB |
2418 | return ret; |
2419 | #endif | |
2420 | } | |
2421 | ||
2422 | #endif /* not HAVE_DUP2 */ | |
2423 | ||
2424 | /* | |
2425 | * Gettimeofday. Simulate as much as possible. Only accurate | |
2426 | * to nearest second. Emacs doesn't use tzp so ignore it for now. | |
2427 | * Only needed when subprocesses are defined. | |
2428 | */ | |
2429 | ||
86a5659e JB |
2430 | #ifndef HAVE_GETTIMEOFDAY |
2431 | #ifdef HAVE_TIMEVAL | |
177c0ea7 | 2432 | |
86a5659e | 2433 | /* ARGSUSED */ |
dfcf069d | 2434 | int |
cf84bb53 | 2435 | gettimeofday (struct timeval *tp, struct timezone *tzp) |
86a5659e | 2436 | { |
cf84bb53 | 2437 | extern long time (long); |
86a5659e | 2438 | |
177c0ea7 | 2439 | tp->tv_sec = time ((long *)0); |
86a5659e | 2440 | tp->tv_usec = 0; |
4ca7594f RS |
2441 | if (tzp != 0) |
2442 | tzp->tz_minuteswest = -1; | |
dfcf069d | 2443 | return 0; |
86a5659e | 2444 | } |
177c0ea7 | 2445 | |
86a5659e | 2446 | #endif |
77defa9a | 2447 | #endif /* !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL */ |
177c0ea7 | 2448 | |
86a5659e JB |
2449 | /* |
2450 | * This function will go away as soon as all the stubs fixed. (fnf) | |
2451 | */ | |
2452 | ||
dfcf069d | 2453 | void |
971de7fb | 2454 | croak (char *badfunc) |
86a5659e JB |
2455 | { |
2456 | printf ("%s not yet implemented\r\n", badfunc); | |
28d440ab | 2457 | reset_all_sys_modes (); |
86a5659e JB |
2458 | exit (1); |
2459 | } | |
2460 | ||
2461 | #endif /* USG */ | |
2462 | \f | |
86a5659e JB |
2463 | /* Directory routines for systems that don't have them. */ |
2464 | ||
1c97e857 | 2465 | #ifdef HAVE_DIRENT_H |
86a5659e JB |
2466 | |
2467 | #include <dirent.h> | |
2468 | ||
9d9a7716 | 2469 | #if !defined (HAVE_CLOSEDIR) |
cfdc57af | 2470 | |
86a5659e | 2471 | int |
9d9a7716 | 2472 | closedir (DIR *dirp /* stream from opendir */) |
86a5659e | 2473 | { |
cfdc57af RS |
2474 | int rtnval; |
2475 | ||
68c45bf0 | 2476 | rtnval = emacs_close (dirp->dd_fd); |
9ac0d9e0 | 2477 | xfree ((char *) dirp); |
cfdc57af RS |
2478 | |
2479 | return rtnval; | |
86a5659e | 2480 | } |
9d9a7716 | 2481 | #endif /* not HAVE_CLOSEDIR */ |
1c97e857 | 2482 | #endif /* HAVE_DIRENT_H */ |
86a5659e | 2483 | |
23524fb9 | 2484 | \f |
53ea491a | 2485 | int |
e5447b22 | 2486 | set_file_times (const char *filename, EMACS_TIME atime, EMACS_TIME mtime) |
53ea491a KH |
2487 | { |
2488 | #ifdef HAVE_UTIMES | |
2489 | struct timeval tv[2]; | |
2490 | tv[0] = atime; | |
2491 | tv[1] = mtime; | |
8334eb21 RS |
2492 | return utimes (filename, tv); |
2493 | #else /* not HAVE_UTIMES */ | |
53ea491a KH |
2494 | struct utimbuf utb; |
2495 | utb.actime = EMACS_SECS (atime); | |
2496 | utb.modtime = EMACS_SECS (mtime); | |
8334eb21 RS |
2497 | return utime (filename, &utb); |
2498 | #endif /* not HAVE_UTIMES */ | |
53ea491a KH |
2499 | } |
2500 | \f | |
23524fb9 JB |
2501 | /* mkdir and rmdir functions, for systems which don't have them. */ |
2502 | ||
2503 | #ifndef HAVE_MKDIR | |
2504 | /* | |
2505 | * Written by Robert Rother, Mariah Corporation, August 1985. | |
2506 | * | |
2507 | * If you want it, it's yours. All I ask in return is that if you | |
2508 | * figure out how to do this in a Bourne Shell script you send me | |
2509 | * a copy. | |
2510 | * sdcsvax!rmr or rmr@uscd | |
2511 | * | |
2512 | * Severely hacked over by John Gilmore to make a 4.2BSD compatible | |
db9cd97a | 2513 | * subroutine. 11Mar86; hoptoad!gnu |
23524fb9 JB |
2514 | * |
2515 | * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir, | |
2516 | * subroutine didn't return EEXIST. It does now. | |
2517 | */ | |
2518 | ||
2519 | /* | |
2520 | * Make a directory. | |
2521 | */ | |
2522 | int | |
cf84bb53 | 2523 | mkdir (char *dpath, int dmode) |
23524fb9 | 2524 | { |
039f26a4 | 2525 | int cpid, status, fd; |
23524fb9 JB |
2526 | struct stat statbuf; |
2527 | ||
2528 | if (stat (dpath, &statbuf) == 0) | |
2529 | { | |
2530 | errno = EEXIST; /* Stat worked, so it already exists */ | |
2531 | return -1; | |
2532 | } | |
2533 | ||
2534 | /* If stat fails for a reason other than non-existence, return error */ | |
2535 | if (errno != ENOENT) | |
2536 | return -1; | |
2537 | ||
039f26a4 | 2538 | synch_process_alive = 1; |
23524fb9 JB |
2539 | switch (cpid = fork ()) |
2540 | { | |
2541 | ||
039f26a4 | 2542 | case -1: /* Error in fork */ |
23524fb9 JB |
2543 | return (-1); /* Errno is set already */ |
2544 | ||
2545 | case 0: /* Child process */ | |
2546 | /* | |
2547 | * Cheap hack to set mode of new directory. Since this | |
2548 | * child process is going away anyway, we zap its umask. | |
2549 | * FIXME, this won't suffice to set SUID, SGID, etc. on this | |
2550 | * directory. Does anybody care? | |
2551 | */ | |
2552 | status = umask (0); /* Get current umask */ | |
2553 | status = umask (status | (0777 & ~dmode)); /* Set for mkdir */ | |
68c45bf0 | 2554 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
2555 | if (fd >= 0) |
2556 | { | |
2557 | dup2 (fd, 0); | |
2558 | dup2 (fd, 1); | |
2559 | dup2 (fd, 2); | |
2560 | } | |
23524fb9 JB |
2561 | execl ("/bin/mkdir", "mkdir", dpath, (char *) 0); |
2562 | _exit (-1); /* Can't exec /bin/mkdir */ | |
2563 | ||
2564 | default: /* Parent process */ | |
039f26a4 | 2565 | wait_for_termination (cpid); |
23524fb9 JB |
2566 | } |
2567 | ||
6b0824c9 JD |
2568 | if (synch_process_death != 0 || synch_process_retcode != 0 |
2569 | || synch_process_termsig != 0) | |
23524fb9 JB |
2570 | { |
2571 | errno = EIO; /* We don't know why, but */ | |
2572 | return -1; /* /bin/mkdir failed */ | |
2573 | } | |
2574 | ||
2575 | return 0; | |
2576 | } | |
2577 | #endif /* not HAVE_MKDIR */ | |
2578 | ||
2579 | #ifndef HAVE_RMDIR | |
2580 | int | |
cf84bb53 | 2581 | rmdir (char *dpath) |
23524fb9 | 2582 | { |
039f26a4 | 2583 | int cpid, status, fd; |
23524fb9 JB |
2584 | struct stat statbuf; |
2585 | ||
2586 | if (stat (dpath, &statbuf) != 0) | |
2587 | { | |
2588 | /* Stat just set errno. We don't have to */ | |
2589 | return -1; | |
2590 | } | |
2591 | ||
039f26a4 | 2592 | synch_process_alive = 1; |
23524fb9 JB |
2593 | switch (cpid = fork ()) |
2594 | { | |
2595 | ||
039f26a4 | 2596 | case -1: /* Error in fork */ |
23524fb9 JB |
2597 | return (-1); /* Errno is set already */ |
2598 | ||
2599 | case 0: /* Child process */ | |
68c45bf0 | 2600 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
2601 | if (fd >= 0) |
2602 | { | |
2603 | dup2 (fd, 0); | |
2604 | dup2 (fd, 1); | |
2605 | dup2 (fd, 2); | |
2606 | } | |
f560db78 RS |
2607 | execl ("/bin/rmdir", "rmdir", dpath, (char *) 0); |
2608 | _exit (-1); /* Can't exec /bin/rmdir */ | |
2609 | ||
207bdbdb | 2610 | default: /* Parent process */ |
f560db78 | 2611 | wait_for_termination (cpid); |
23524fb9 JB |
2612 | } |
2613 | ||
6b0824c9 JD |
2614 | if (synch_process_death != 0 || synch_process_retcode != 0 |
2615 | || synch_process_termsig != 0) | |
23524fb9 JB |
2616 | { |
2617 | errno = EIO; /* We don't know why, but */ | |
f560db78 | 2618 | return -1; /* /bin/rmdir failed */ |
23524fb9 JB |
2619 | } |
2620 | ||
2621 | return 0; | |
2622 | } | |
2623 | #endif /* !HAVE_RMDIR */ | |
2624 | ||
86a5659e | 2625 | \f |
72af86bd AS |
2626 | #ifndef HAVE_MEMSET |
2627 | void * | |
2628 | memset (void *b, int n, size_t length) | |
2629 | { | |
2630 | unsigned char *p = b; | |
2631 | while (length-- > 0) | |
2632 | *p++ = n; | |
2633 | return b; | |
2634 | } | |
2635 | #endif /* !HAVE_MEMSET */ | |
2636 | ||
2637 | #ifndef HAVE_MEMCPY | |
2638 | void * | |
2639 | memcpy (void *b1, void *b2, size_t length) | |
2640 | { | |
2641 | unsigned char *p1 = b1, *p2 = b2; | |
2642 | while (length-- > 0) | |
2643 | *p1++ = *p2++; | |
2644 | return b1; | |
2645 | } | |
2646 | #endif /* !HAVE_MEMCPY */ | |
2647 | ||
2648 | #ifndef HAVE_MEMMOVE | |
2649 | void * | |
2650 | memmove (void *b1, void *b2, size_t length) | |
2651 | { | |
2652 | unsigned char *p1 = b1, *p2 = b2; | |
2653 | if (p1 < p2 || p1 >= p2 + length) | |
2654 | while (length-- > 0) | |
2655 | *p1++ = *p2++; | |
2656 | else | |
2657 | { | |
2658 | p1 += length; | |
2659 | p2 += length; | |
2660 | while (length-- > 0) | |
2661 | *--p1 = *--p2; | |
2662 | } | |
2663 | return b1; | |
2664 | } | |
2665 | #endif /* !HAVE_MEMCPY */ | |
2666 | ||
2667 | #ifndef HAVE_MEMCMP | |
2668 | int | |
2669 | memcmp (void *b1, void *b2, size_t length) | |
2670 | { | |
2671 | unsigned char *p1 = b1, *p2 = b2; | |
2672 | while (length-- > 0) | |
2673 | if (*p1++ != *p2++) | |
2674 | return p1[-1] < p2[-1] ? -1 : 1; | |
2675 | return 0; | |
2676 | } | |
2677 | #endif /* !HAVE_MEMCMP */ | |
2678 | \f | |
68c45bf0 PE |
2679 | #ifndef HAVE_STRSIGNAL |
2680 | char * | |
cf84bb53 | 2681 | strsignal (int code) |
68c45bf0 PE |
2682 | { |
2683 | char *signame = 0; | |
2684 | ||
2685 | if (0 <= code && code < NSIG) | |
2686 | { | |
68c45bf0 PE |
2687 | /* Cast to suppress warning if the table has const char *. */ |
2688 | signame = (char *) sys_siglist[code]; | |
68c45bf0 | 2689 | } |
c4ea52a6 | 2690 | |
68c45bf0 PE |
2691 | return signame; |
2692 | } | |
2693 | #endif /* HAVE_STRSIGNAL */ | |
d888760c GM |
2694 | \f |
2695 | #ifdef HAVE_TERMIOS | |
2696 | /* For make-serial-process */ | |
cf84bb53 JB |
2697 | int |
2698 | serial_open (char *port) | |
d888760c GM |
2699 | { |
2700 | int fd = -1; | |
2701 | ||
2702 | fd = emacs_open ((char*) port, | |
2703 | O_RDWR | |
2704 | #ifdef O_NONBLOCK | |
2705 | | O_NONBLOCK | |
2706 | #else | |
2707 | | O_NDELAY | |
2708 | #endif | |
2709 | #ifdef O_NOCTTY | |
2710 | | O_NOCTTY | |
2711 | #endif | |
2712 | , 0); | |
2713 | if (fd < 0) | |
2714 | { | |
2715 | error ("Could not open %s: %s", | |
2716 | port, emacs_strerror (errno)); | |
2717 | } | |
2718 | #ifdef TIOCEXCL | |
2719 | ioctl (fd, TIOCEXCL, (char *) 0); | |
2720 | #endif | |
2721 | ||
2722 | return fd; | |
2723 | } | |
2724 | #endif /* TERMIOS */ | |
2725 | ||
2726 | #ifdef HAVE_TERMIOS | |
759d3f32 SM |
2727 | |
2728 | #if !defined (HAVE_CFMAKERAW) | |
2729 | /* Workaround for targets which are missing cfmakeraw. */ | |
2730 | /* Pasted from man page. */ | |
cf84bb53 JB |
2731 | static void |
2732 | cfmakeraw (struct termios *termios_p) | |
759d3f32 SM |
2733 | { |
2734 | termios_p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); | |
2735 | termios_p->c_oflag &= ~OPOST; | |
2736 | termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); | |
2737 | termios_p->c_cflag &= ~(CSIZE|PARENB); | |
2738 | termios_p->c_cflag |= CS8; | |
2739 | } | |
2740 | #endif /* !defined (HAVE_CFMAKERAW */ | |
2741 | ||
2742 | #if !defined (HAVE_CFSETSPEED) | |
2743 | /* Workaround for targets which are missing cfsetspeed. */ | |
cf84bb53 JB |
2744 | static int |
2745 | cfsetspeed (struct termios *termios_p, speed_t vitesse) | |
759d3f32 SM |
2746 | { |
2747 | return (cfsetispeed (termios_p, vitesse) | |
2748 | + cfsetospeed (termios_p, vitesse)); | |
2749 | } | |
2750 | #endif | |
2751 | ||
d888760c GM |
2752 | /* For serial-process-configure */ |
2753 | void | |
2754 | serial_configure (struct Lisp_Process *p, | |
cf84bb53 | 2755 | Lisp_Object contact) |
d888760c GM |
2756 | { |
2757 | Lisp_Object childp2 = Qnil; | |
2758 | Lisp_Object tem = Qnil; | |
2759 | struct termios attr; | |
2760 | int err = -1; | |
2761 | char summary[4] = "???"; /* This usually becomes "8N1". */ | |
2762 | ||
2763 | childp2 = Fcopy_sequence (p->childp); | |
2764 | ||
2765 | /* Read port attributes and prepare default configuration. */ | |
2766 | err = tcgetattr (p->outfd, &attr); | |
2767 | if (err != 0) | |
2768 | error ("tcgetattr() failed: %s", emacs_strerror (errno)); | |
2769 | cfmakeraw (&attr); | |
2770 | #if defined (CLOCAL) | |
2771 | attr.c_cflag |= CLOCAL; | |
2772 | #endif | |
2773 | #if defined (CREAD) | |
6d1921be | 2774 | attr.c_cflag |= CREAD; |
d888760c GM |
2775 | #endif |
2776 | ||
2777 | /* Configure speed. */ | |
2778 | if (!NILP (Fplist_member (contact, QCspeed))) | |
2779 | tem = Fplist_get (contact, QCspeed); | |
2780 | else | |
2781 | tem = Fplist_get (p->childp, QCspeed); | |
2782 | CHECK_NUMBER (tem); | |
2783 | err = cfsetspeed (&attr, XINT (tem)); | |
2784 | if (err != 0) | |
2785 | error ("cfsetspeed(%d) failed: %s", XINT (tem), emacs_strerror (errno)); | |
2786 | childp2 = Fplist_put (childp2, QCspeed, tem); | |
2787 | ||
2788 | /* Configure bytesize. */ | |
2789 | if (!NILP (Fplist_member (contact, QCbytesize))) | |
2790 | tem = Fplist_get (contact, QCbytesize); | |
2791 | else | |
2792 | tem = Fplist_get (p->childp, QCbytesize); | |
2793 | if (NILP (tem)) | |
2794 | tem = make_number (8); | |
2795 | CHECK_NUMBER (tem); | |
2796 | if (XINT (tem) != 7 && XINT (tem) != 8) | |
2797 | error (":bytesize must be nil (8), 7, or 8"); | |
cf84bb53 | 2798 | summary[0] = XINT (tem) + '0'; |
d888760c GM |
2799 | #if defined (CSIZE) && defined (CS7) && defined (CS8) |
2800 | attr.c_cflag &= ~CSIZE; | |
2801 | attr.c_cflag |= ((XINT (tem) == 7) ? CS7 : CS8); | |
2802 | #else | |
16bad4dd | 2803 | /* Don't error on bytesize 8, which should be set by cfmakeraw. */ |
d888760c GM |
2804 | if (XINT (tem) != 8) |
2805 | error ("Bytesize cannot be changed"); | |
2806 | #endif | |
2807 | childp2 = Fplist_put (childp2, QCbytesize, tem); | |
2808 | ||
2809 | /* Configure parity. */ | |
2810 | if (!NILP (Fplist_member (contact, QCparity))) | |
2811 | tem = Fplist_get (contact, QCparity); | |
2812 | else | |
2813 | tem = Fplist_get (p->childp, QCparity); | |
2814 | if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd)) | |
2815 | error (":parity must be nil (no parity), `even', or `odd'"); | |
2816 | #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK) | |
2817 | attr.c_cflag &= ~(PARENB | PARODD); | |
2818 | attr.c_iflag &= ~(IGNPAR | INPCK); | |
2819 | if (NILP (tem)) | |
2820 | { | |
2821 | summary[1] = 'N'; | |
2822 | } | |
2823 | else if (EQ (tem, Qeven)) | |
2824 | { | |
2825 | summary[1] = 'E'; | |
2826 | attr.c_cflag |= PARENB; | |
2827 | attr.c_iflag |= (IGNPAR | INPCK); | |
2828 | } | |
2829 | else if (EQ (tem, Qodd)) | |
2830 | { | |
2831 | summary[1] = 'O'; | |
2832 | attr.c_cflag |= (PARENB | PARODD); | |
2833 | attr.c_iflag |= (IGNPAR | INPCK); | |
2834 | } | |
2835 | #else | |
16bad4dd | 2836 | /* Don't error on no parity, which should be set by cfmakeraw. */ |
d888760c GM |
2837 | if (!NILP (tem)) |
2838 | error ("Parity cannot be configured"); | |
2839 | #endif | |
2840 | childp2 = Fplist_put (childp2, QCparity, tem); | |
2841 | ||
2842 | /* Configure stopbits. */ | |
2843 | if (!NILP (Fplist_member (contact, QCstopbits))) | |
2844 | tem = Fplist_get (contact, QCstopbits); | |
2845 | else | |
2846 | tem = Fplist_get (p->childp, QCstopbits); | |
2847 | if (NILP (tem)) | |
2848 | tem = make_number (1); | |
2849 | CHECK_NUMBER (tem); | |
2850 | if (XINT (tem) != 1 && XINT (tem) != 2) | |
2851 | error (":stopbits must be nil (1 stopbit), 1, or 2"); | |
2852 | summary[2] = XINT (tem) + '0'; | |
2853 | #if defined (CSTOPB) | |
2854 | attr.c_cflag &= ~CSTOPB; | |
2855 | if (XINT (tem) == 2) | |
2856 | attr.c_cflag |= CSTOPB; | |
2857 | #else | |
16bad4dd | 2858 | /* Don't error on 1 stopbit, which should be set by cfmakeraw. */ |
d888760c GM |
2859 | if (XINT (tem) != 1) |
2860 | error ("Stopbits cannot be configured"); | |
2861 | #endif | |
2862 | childp2 = Fplist_put (childp2, QCstopbits, tem); | |
2863 | ||
2864 | /* Configure flowcontrol. */ | |
2865 | if (!NILP (Fplist_member (contact, QCflowcontrol))) | |
2866 | tem = Fplist_get (contact, QCflowcontrol); | |
2867 | else | |
2868 | tem = Fplist_get (p->childp, QCflowcontrol); | |
2869 | if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw)) | |
2870 | error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'"); | |
2871 | #if defined (CRTSCTS) | |
2872 | attr.c_cflag &= ~CRTSCTS; | |
2873 | #endif | |
2874 | #if defined (CNEW_RTSCTS) | |
2875 | attr.c_cflag &= ~CNEW_RTSCTS; | |
2876 | #endif | |
2877 | #if defined (IXON) && defined (IXOFF) | |
2878 | attr.c_iflag &= ~(IXON | IXOFF); | |
2879 | #endif | |
2880 | if (NILP (tem)) | |
2881 | { | |
2882 | /* Already configured. */ | |
2883 | } | |
2884 | else if (EQ (tem, Qhw)) | |
2885 | { | |
2886 | #if defined (CRTSCTS) | |
2887 | attr.c_cflag |= CRTSCTS; | |
2888 | #elif defined (CNEW_RTSCTS) | |
2889 | attr.c_cflag |= CNEW_RTSCTS; | |
2890 | #else | |
2891 | error ("Hardware flowcontrol (RTS/CTS) not supported"); | |
2892 | #endif | |
2893 | } | |
2894 | else if (EQ (tem, Qsw)) | |
2895 | { | |
2896 | #if defined (IXON) && defined (IXOFF) | |
2897 | attr.c_iflag |= (IXON | IXOFF); | |
2898 | #else | |
2899 | error ("Software flowcontrol (XON/XOFF) not supported"); | |
2900 | #endif | |
2901 | } | |
2902 | childp2 = Fplist_put (childp2, QCflowcontrol, tem); | |
2903 | ||
2904 | /* Activate configuration. */ | |
2905 | err = tcsetattr (p->outfd, TCSANOW, &attr); | |
2906 | if (err != 0) | |
2907 | error ("tcsetattr() failed: %s", emacs_strerror (errno)); | |
2908 | ||
2909 | childp2 = Fplist_put (childp2, QCsummary, build_string (summary)); | |
2910 | p->childp = childp2; | |
2911 | ||
2912 | } | |
2913 | #endif /* TERMIOS */ | |
06e111a6 DN |
2914 | \f |
2915 | /* System depended enumeration of and access to system processes a-la ps(1). */ | |
2916 | ||
2917 | #ifdef HAVE_PROCFS | |
2918 | ||
2919 | /* Process enumeration and access via /proc. */ | |
2920 | ||
2921 | Lisp_Object | |
971de7fb | 2922 | list_system_processes (void) |
06e111a6 DN |
2923 | { |
2924 | Lisp_Object procdir, match, proclist, next; | |
2925 | struct gcpro gcpro1, gcpro2; | |
2926 | register Lisp_Object tail; | |
2927 | ||
2928 | GCPRO2 (procdir, match); | |
2929 | /* For every process on the system, there's a directory in the | |
2930 | "/proc" pseudo-directory whose name is the numeric ID of that | |
2931 | process. */ | |
2932 | procdir = build_string ("/proc"); | |
2933 | match = build_string ("[0-9]+"); | |
2934 | proclist = directory_files_internal (procdir, Qnil, match, Qt, 0, Qnil); | |
2935 | ||
2936 | /* `proclist' gives process IDs as strings. Destructively convert | |
2937 | each string into a number. */ | |
2938 | for (tail = proclist; CONSP (tail); tail = next) | |
2939 | { | |
2940 | next = XCDR (tail); | |
2941 | XSETCAR (tail, Fstring_to_number (XCAR (tail), Qnil)); | |
2942 | } | |
2943 | UNGCPRO; | |
2944 | ||
2945 | /* directory_files_internal returns the files in reverse order; undo | |
2946 | that. */ | |
2947 | proclist = Fnreverse (proclist); | |
2948 | return proclist; | |
2949 | } | |
2950 | ||
f8d23104 DN |
2951 | /* The WINDOWSNT implementation is in w32.c. |
2952 | The MSDOS implementation is in dosfns.c. */ | |
c4605e09 | 2953 | #elif !defined (WINDOWSNT) && !defined (MSDOS) |
06e111a6 DN |
2954 | |
2955 | Lisp_Object | |
cf84bb53 | 2956 | list_system_processes (void) |
06e111a6 DN |
2957 | { |
2958 | return Qnil; | |
2959 | } | |
91c85b70 EZ |
2960 | |
2961 | #endif /* !defined (WINDOWSNT) */ | |
06e111a6 DN |
2962 | |
2963 | #ifdef GNU_LINUX | |
2964 | static void | |
2965 | time_from_jiffies (unsigned long long tval, long hz, | |
2966 | time_t *sec, unsigned *usec) | |
2967 | { | |
2968 | unsigned long long ullsec; | |
2969 | ||
2970 | *sec = tval / hz; | |
2971 | ullsec = *sec; | |
2972 | tval -= ullsec * hz; | |
2973 | /* Careful: if HZ > 1 million, then integer division by it yields zero. */ | |
2974 | if (hz <= 1000000) | |
2975 | *usec = tval * 1000000 / hz; | |
2976 | else | |
2977 | *usec = tval / (hz / 1000000); | |
2978 | } | |
2979 | ||
2980 | static Lisp_Object | |
2981 | ltime_from_jiffies (unsigned long long tval, long hz) | |
2982 | { | |
2983 | time_t sec; | |
2984 | unsigned usec; | |
2985 | ||
2986 | time_from_jiffies (tval, hz, &sec, &usec); | |
2987 | ||
2988 | return list3 (make_number ((sec >> 16) & 0xffff), | |
2989 | make_number (sec & 0xffff), | |
2990 | make_number (usec)); | |
2991 | } | |
2992 | ||
2993 | static void | |
2994 | get_up_time (time_t *sec, unsigned *usec) | |
2995 | { | |
2996 | FILE *fup; | |
2997 | ||
2998 | *sec = *usec = 0; | |
2999 | ||
3000 | BLOCK_INPUT; | |
3001 | fup = fopen ("/proc/uptime", "r"); | |
3002 | ||
3003 | if (fup) | |
3004 | { | |
3005 | double uptime, idletime; | |
3006 | ||
3007 | /* The numbers in /proc/uptime use C-locale decimal point, but | |
3008 | we already set ourselves to the C locale (see `fixup_locale' | |
3009 | in emacs.c). */ | |
3010 | if (2 <= fscanf (fup, "%lf %lf", &uptime, &idletime)) | |
3011 | { | |
3012 | *sec = uptime; | |
3013 | *usec = (uptime - *sec) * 1000000; | |
3014 | } | |
3015 | fclose (fup); | |
3016 | } | |
3017 | UNBLOCK_INPUT; | |
3018 | } | |
3019 | ||
3020 | #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff) | |
3021 | #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12)) | |
3022 | ||
3023 | static Lisp_Object | |
f4f634e8 | 3024 | procfs_ttyname (int rdev) |
06e111a6 DN |
3025 | { |
3026 | FILE *fdev = NULL; | |
3027 | char name[PATH_MAX]; | |
3028 | ||
3029 | BLOCK_INPUT; | |
3030 | fdev = fopen ("/proc/tty/drivers", "r"); | |
3031 | ||
3032 | if (fdev) | |
3033 | { | |
3034 | unsigned major; | |
3035 | unsigned long minor_beg, minor_end; | |
3036 | char minor[25]; /* 2 32-bit numbers + dash */ | |
3037 | char *endp; | |
3038 | ||
3039 | while (!feof (fdev) && !ferror (fdev)) | |
3040 | { | |
3041 | if (3 <= fscanf (fdev, "%*s %s %u %s %*s\n", name, &major, minor) | |
3042 | && major == MAJOR (rdev)) | |
3043 | { | |
3044 | minor_beg = strtoul (minor, &endp, 0); | |
3045 | if (*endp == '\0') | |
3046 | minor_end = minor_beg; | |
3047 | else if (*endp == '-') | |
3048 | minor_end = strtoul (endp + 1, &endp, 0); | |
3049 | else | |
3050 | continue; | |
3051 | ||
3052 | if (MINOR (rdev) >= minor_beg && MINOR (rdev) <= minor_end) | |
3053 | { | |
10d66ec0 | 3054 | sprintf (name + strlen (name), "%u", MINOR (rdev)); |
06e111a6 DN |
3055 | break; |
3056 | } | |
3057 | } | |
3058 | } | |
3059 | fclose (fdev); | |
3060 | } | |
3061 | UNBLOCK_INPUT; | |
3062 | return build_string (name); | |
3063 | } | |
3064 | ||
3065 | static unsigned long | |
3066 | procfs_get_total_memory (void) | |
3067 | { | |
3068 | FILE *fmem = NULL; | |
3069 | unsigned long retval = 2 * 1024 * 1024; /* default: 2GB */ | |
3070 | ||
3071 | BLOCK_INPUT; | |
3072 | fmem = fopen ("/proc/meminfo", "r"); | |
3073 | ||
3074 | if (fmem) | |
3075 | { | |
3076 | unsigned long entry_value; | |
3077 | char entry_name[20]; /* the longest I saw is 13+1 */ | |
3078 | ||
3079 | while (!feof (fmem) && !ferror (fmem)) | |
3080 | { | |
3081 | if (2 <= fscanf (fmem, "%s %lu kB\n", entry_name, &entry_value) | |
3082 | && strcmp (entry_name, "MemTotal:") == 0) | |
3083 | { | |
3084 | retval = entry_value; | |
3085 | break; | |
3086 | } | |
3087 | } | |
3088 | fclose (fmem); | |
3089 | } | |
3090 | UNBLOCK_INPUT; | |
3091 | return retval; | |
3092 | } | |
3093 | ||
3094 | Lisp_Object | |
f4f634e8 | 3095 | system_process_attributes (Lisp_Object pid) |
06e111a6 DN |
3096 | { |
3097 | char procfn[PATH_MAX], fn[PATH_MAX]; | |
3098 | struct stat st; | |
3099 | struct passwd *pw; | |
3100 | struct group *gr; | |
3101 | long clocks_per_sec; | |
3102 | char *procfn_end; | |
3103 | char procbuf[1025], *p, *q; | |
3104 | int fd; | |
3105 | ssize_t nread; | |
3106 | const char *cmd = NULL; | |
3107 | char *cmdline = NULL; | |
3108 | size_t cmdsize = 0, cmdline_size; | |
3109 | unsigned char c; | |
3110 | int proc_id, ppid, uid, gid, pgrp, sess, tty, tpgid, thcount; | |
3111 | unsigned long long utime, stime, cutime, cstime, start; | |
3112 | long priority, nice, rss; | |
3113 | unsigned long minflt, majflt, cminflt, cmajflt, vsize; | |
3114 | time_t sec; | |
3115 | unsigned usec; | |
2b0a91e7 | 3116 | EMACS_TIME tnow, tstart, tboot, telapsed; |
06e111a6 DN |
3117 | double pcpu, pmem; |
3118 | Lisp_Object attrs = Qnil; | |
3119 | Lisp_Object cmd_str, decoded_cmd, tem; | |
3120 | struct gcpro gcpro1, gcpro2; | |
3121 | EMACS_INT uid_eint, gid_eint; | |
3122 | ||
3123 | CHECK_NUMBER_OR_FLOAT (pid); | |
3124 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
10d66ec0 | 3125 | sprintf (procfn, "/proc/%u", proc_id); |
06e111a6 DN |
3126 | if (stat (procfn, &st) < 0) |
3127 | return attrs; | |
3128 | ||
3129 | GCPRO2 (attrs, decoded_cmd); | |
3130 | ||
3131 | /* euid egid */ | |
3132 | uid = st.st_uid; | |
3133 | /* Use of EMACS_INT stops GCC whining about limited range of data type. */ | |
3134 | uid_eint = uid; | |
3135 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid_eint)), attrs); | |
3136 | BLOCK_INPUT; | |
3137 | pw = getpwuid (uid); | |
3138 | UNBLOCK_INPUT; | |
3139 | if (pw) | |
3140 | attrs = Fcons (Fcons (Quser, build_string (pw->pw_name)), attrs); | |
3141 | ||
3142 | gid = st.st_gid; | |
3143 | gid_eint = gid; | |
3144 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid_eint)), attrs); | |
3145 | BLOCK_INPUT; | |
3146 | gr = getgrgid (gid); | |
3147 | UNBLOCK_INPUT; | |
3148 | if (gr) | |
3149 | attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs); | |
3150 | ||
3151 | strcpy (fn, procfn); | |
3152 | procfn_end = fn + strlen (fn); | |
3153 | strcpy (procfn_end, "/stat"); | |
3154 | fd = emacs_open (fn, O_RDONLY, 0); | |
cf84bb53 | 3155 | if (fd >= 0 && (nread = emacs_read (fd, procbuf, sizeof (procbuf) - 1)) > 0) |
06e111a6 DN |
3156 | { |
3157 | procbuf[nread] = '\0'; | |
3158 | p = procbuf; | |
3159 | ||
3160 | p = strchr (p, '('); | |
3161 | if (p != NULL) | |
3162 | { | |
3163 | q = strrchr (p + 1, ')'); | |
3164 | /* comm */ | |
3165 | if (q != NULL) | |
3166 | { | |
3167 | cmd = p + 1; | |
3168 | cmdsize = q - cmd; | |
3169 | } | |
3170 | } | |
3171 | else | |
3172 | q = NULL; | |
3173 | if (cmd == NULL) | |
3174 | { | |
3175 | cmd = "???"; | |
3176 | cmdsize = 3; | |
3177 | } | |
3178 | /* Command name is encoded in locale-coding-system; decode it. */ | |
3179 | cmd_str = make_unibyte_string (cmd, cmdsize); | |
3180 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
3181 | Vlocale_coding_system, 0); | |
3182 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
3183 | ||
3184 | if (q) | |
3185 | { | |
3186 | EMACS_INT ppid_eint, pgrp_eint, sess_eint, tpgid_eint, thcount_eint; | |
3187 | p = q + 2; | |
3188 | /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */ | |
3189 | sscanf (p, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld", | |
3190 | &c, &ppid, &pgrp, &sess, &tty, &tpgid, | |
3191 | &minflt, &cminflt, &majflt, &cmajflt, | |
3192 | &utime, &stime, &cutime, &cstime, | |
3193 | &priority, &nice, &thcount, &start, &vsize, &rss); | |
3194 | { | |
3195 | char state_str[2]; | |
3196 | ||
3197 | state_str[0] = c; | |
3198 | state_str[1] = '\0'; | |
3199 | tem = build_string (state_str); | |
3200 | attrs = Fcons (Fcons (Qstate, tem), attrs); | |
3201 | } | |
3202 | /* Stops GCC whining about limited range of data type. */ | |
3203 | ppid_eint = ppid; | |
3204 | pgrp_eint = pgrp; | |
3205 | sess_eint = sess; | |
3206 | tpgid_eint = tpgid; | |
3207 | thcount_eint = thcount; | |
3208 | attrs = Fcons (Fcons (Qppid, make_fixnum_or_float (ppid_eint)), attrs); | |
3209 | attrs = Fcons (Fcons (Qpgrp, make_fixnum_or_float (pgrp_eint)), attrs); | |
3210 | attrs = Fcons (Fcons (Qsess, make_fixnum_or_float (sess_eint)), attrs); | |
3211 | attrs = Fcons (Fcons (Qttname, procfs_ttyname (tty)), attrs); | |
3212 | attrs = Fcons (Fcons (Qtpgid, make_fixnum_or_float (tpgid_eint)), attrs); | |
3213 | attrs = Fcons (Fcons (Qminflt, make_fixnum_or_float (minflt)), attrs); | |
3214 | attrs = Fcons (Fcons (Qmajflt, make_fixnum_or_float (majflt)), attrs); | |
3215 | attrs = Fcons (Fcons (Qcminflt, make_fixnum_or_float (cminflt)), attrs); | |
3216 | attrs = Fcons (Fcons (Qcmajflt, make_fixnum_or_float (cmajflt)), attrs); | |
3217 | clocks_per_sec = sysconf (_SC_CLK_TCK); | |
3218 | if (clocks_per_sec < 0) | |
3219 | clocks_per_sec = 100; | |
3220 | attrs = Fcons (Fcons (Qutime, | |
3221 | ltime_from_jiffies (utime, clocks_per_sec)), | |
3222 | attrs); | |
3223 | attrs = Fcons (Fcons (Qstime, | |
3224 | ltime_from_jiffies (stime, clocks_per_sec)), | |
3225 | attrs); | |
ac1e4171 EZ |
3226 | attrs = Fcons (Fcons (Qtime, |
3227 | ltime_from_jiffies (stime+utime, clocks_per_sec)), | |
3228 | attrs); | |
06e111a6 DN |
3229 | attrs = Fcons (Fcons (Qcutime, |
3230 | ltime_from_jiffies (cutime, clocks_per_sec)), | |
3231 | attrs); | |
3232 | attrs = Fcons (Fcons (Qcstime, | |
3233 | ltime_from_jiffies (cstime, clocks_per_sec)), | |
ac1e4171 EZ |
3234 | attrs); |
3235 | attrs = Fcons (Fcons (Qctime, | |
3236 | ltime_from_jiffies (cstime+cutime, clocks_per_sec)), | |
06e111a6 DN |
3237 | attrs); |
3238 | attrs = Fcons (Fcons (Qpri, make_number (priority)), attrs); | |
3239 | attrs = Fcons (Fcons (Qnice, make_number (nice)), attrs); | |
3240 | attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (thcount_eint)), attrs); | |
3241 | EMACS_GET_TIME (tnow); | |
3242 | get_up_time (&sec, &usec); | |
3243 | EMACS_SET_SECS (telapsed, sec); | |
3244 | EMACS_SET_USECS (telapsed, usec); | |
3245 | EMACS_SUB_TIME (tboot, tnow, telapsed); | |
3246 | time_from_jiffies (start, clocks_per_sec, &sec, &usec); | |
3247 | EMACS_SET_SECS (tstart, sec); | |
3248 | EMACS_SET_USECS (tstart, usec); | |
3249 | EMACS_ADD_TIME (tstart, tboot, tstart); | |
3250 | attrs = Fcons (Fcons (Qstart, | |
3251 | list3 (make_number | |
3252 | ((EMACS_SECS (tstart) >> 16) & 0xffff), | |
3253 | make_number | |
3254 | (EMACS_SECS (tstart) & 0xffff), | |
3255 | make_number | |
3256 | (EMACS_USECS (tstart)))), | |
3257 | attrs); | |
3258 | attrs = Fcons (Fcons (Qvsize, make_fixnum_or_float (vsize/1024)), attrs); | |
3259 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (4*rss)), attrs); | |
3260 | EMACS_SUB_TIME (telapsed, tnow, tstart); | |
3261 | attrs = Fcons (Fcons (Qetime, | |
3262 | list3 (make_number | |
3263 | ((EMACS_SECS (telapsed) >> 16) & 0xffff), | |
3264 | make_number | |
3265 | (EMACS_SECS (telapsed) & 0xffff), | |
3266 | make_number | |
3267 | (EMACS_USECS (telapsed)))), | |
3268 | attrs); | |
3269 | time_from_jiffies (utime + stime, clocks_per_sec, &sec, &usec); | |
3270 | pcpu = (sec + usec / 1000000.0) / (EMACS_SECS (telapsed) + EMACS_USECS (telapsed) / 1000000.0); | |
3271 | if (pcpu > 1.0) | |
3272 | pcpu = 1.0; | |
3273 | attrs = Fcons (Fcons (Qpcpu, make_float (100 * pcpu)), attrs); | |
3274 | pmem = 4.0 * 100 * rss / procfs_get_total_memory (); | |
3275 | if (pmem > 100) | |
3276 | pmem = 100; | |
3277 | attrs = Fcons (Fcons (Qpmem, make_float (pmem)), attrs); | |
3278 | } | |
3279 | } | |
3280 | if (fd >= 0) | |
3281 | emacs_close (fd); | |
3282 | ||
3283 | /* args */ | |
3284 | strcpy (procfn_end, "/cmdline"); | |
3285 | fd = emacs_open (fn, O_RDONLY, 0); | |
3286 | if (fd >= 0) | |
3287 | { | |
3288 | for (cmdline_size = 0; emacs_read (fd, &c, 1) == 1; cmdline_size++) | |
3289 | { | |
3290 | if (isspace (c) || c == '\\') | |
3291 | cmdline_size++; /* for later quoting, see below */ | |
3292 | } | |
3293 | if (cmdline_size) | |
3294 | { | |
3295 | cmdline = xmalloc (cmdline_size + 1); | |
3296 | lseek (fd, 0L, SEEK_SET); | |
3297 | cmdline[0] = '\0'; | |
3298 | if ((nread = read (fd, cmdline, cmdline_size)) >= 0) | |
3299 | cmdline[nread++] = '\0'; | |
3300 | else | |
3301 | { | |
3302 | /* Assigning zero to `nread' makes us skip the following | |
3303 | two loops, assign zero to cmdline_size, and enter the | |
3304 | following `if' clause that handles unknown command | |
3305 | lines. */ | |
3306 | nread = 0; | |
3307 | } | |
3308 | /* We don't want trailing null characters. */ | |
3309 | for (p = cmdline + nread - 1; p > cmdline && !*p; p--) | |
3310 | nread--; | |
3311 | for (p = cmdline; p < cmdline + nread; p++) | |
3312 | { | |
3313 | /* Escape-quote whitespace and backslashes. */ | |
3314 | if (isspace (*p) || *p == '\\') | |
3315 | { | |
3316 | memmove (p + 1, p, nread - (p - cmdline)); | |
3317 | nread++; | |
3318 | *p++ = '\\'; | |
3319 | } | |
3320 | else if (*p == '\0') | |
3321 | *p = ' '; | |
3322 | } | |
3323 | cmdline_size = nread; | |
3324 | } | |
3325 | if (!cmdline_size) | |
3326 | { | |
3327 | if (!cmd) | |
3328 | cmd = "???"; | |
3329 | if (!cmdsize) | |
3330 | cmdsize = strlen (cmd); | |
3331 | cmdline_size = cmdsize + 2; | |
3332 | cmdline = xmalloc (cmdline_size + 1); | |
3333 | strcpy (cmdline, "["); | |
3334 | strcat (strncat (cmdline, cmd, cmdsize), "]"); | |
3335 | } | |
3336 | emacs_close (fd); | |
3337 | /* Command line is encoded in locale-coding-system; decode it. */ | |
3338 | cmd_str = make_unibyte_string (cmdline, cmdline_size); | |
3339 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
3340 | Vlocale_coding_system, 0); | |
3341 | xfree (cmdline); | |
3342 | attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs); | |
3343 | } | |
3344 | ||
3345 | UNGCPRO; | |
3346 | return attrs; | |
3347 | } | |
91c85b70 | 3348 | |
f4f634e8 DN |
3349 | #elif defined (SOLARIS2) && defined (HAVE_PROCFS) |
3350 | ||
3351 | /* The <procfs.h> header does not like to be included if _LP64 is defined and | |
3352 | __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */ | |
3353 | #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64) | |
3354 | #define PROCFS_FILE_OFFSET_BITS_HACK 1 | |
3355 | #undef _FILE_OFFSET_BITS | |
3356 | #else | |
3357 | #define PROCFS_FILE_OFFSET_BITS_HACK 0 | |
3358 | #endif | |
3359 | ||
3360 | #include <procfs.h> | |
3361 | ||
3362 | #if PROCFS_FILE_OFFSET_BITS_HACK == 1 | |
3363 | #define _FILE_OFFSET_BITS 64 | |
3364 | #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */ | |
3365 | ||
3366 | Lisp_Object | |
3367 | system_process_attributes (Lisp_Object pid) | |
3368 | { | |
3369 | char procfn[PATH_MAX], fn[PATH_MAX]; | |
3370 | struct stat st; | |
3371 | struct passwd *pw; | |
3372 | struct group *gr; | |
3373 | char *procfn_end; | |
3374 | struct psinfo pinfo; | |
3375 | int fd; | |
3376 | ssize_t nread; | |
3377 | int proc_id, uid, gid; | |
3378 | Lisp_Object attrs = Qnil; | |
3379 | Lisp_Object decoded_cmd, tem; | |
3380 | struct gcpro gcpro1, gcpro2; | |
3381 | EMACS_INT uid_eint, gid_eint; | |
3382 | ||
3383 | CHECK_NUMBER_OR_FLOAT (pid); | |
3384 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
3385 | sprintf (procfn, "/proc/%u", proc_id); | |
3386 | if (stat (procfn, &st) < 0) | |
3387 | return attrs; | |
3388 | ||
3389 | GCPRO2 (attrs, decoded_cmd); | |
3390 | ||
3391 | /* euid egid */ | |
3392 | uid = st.st_uid; | |
3393 | /* Use of EMACS_INT stops GCC whining about limited range of data type. */ | |
3394 | uid_eint = uid; | |
3395 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid_eint)), attrs); | |
3396 | BLOCK_INPUT; | |
3397 | pw = getpwuid (uid); | |
3398 | UNBLOCK_INPUT; | |
3399 | if (pw) | |
3400 | attrs = Fcons (Fcons (Quser, build_string (pw->pw_name)), attrs); | |
3401 | ||
3402 | gid = st.st_gid; | |
3403 | gid_eint = gid; | |
3404 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid_eint)), attrs); | |
3405 | BLOCK_INPUT; | |
3406 | gr = getgrgid (gid); | |
3407 | UNBLOCK_INPUT; | |
3408 | if (gr) | |
3409 | attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs); | |
3410 | ||
3411 | strcpy (fn, procfn); | |
3412 | procfn_end = fn + strlen (fn); | |
3413 | strcpy (procfn_end, "/psinfo"); | |
3414 | fd = emacs_open (fn, O_RDONLY, 0); | |
3415 | if (fd >= 0 | |
cf84bb53 | 3416 | && (nread = read (fd, (char*)&pinfo, sizeof (struct psinfo)) > 0)) |
f4f634e8 DN |
3417 | { |
3418 | attrs = Fcons (Fcons (Qppid, make_fixnum_or_float (pinfo.pr_ppid)), attrs); | |
3419 | attrs = Fcons (Fcons (Qpgrp, make_fixnum_or_float (pinfo.pr_pgid)), attrs); | |
3420 | attrs = Fcons (Fcons (Qsess, make_fixnum_or_float (pinfo.pr_sid)), attrs); | |
3421 | ||
3422 | { | |
3423 | char state_str[2]; | |
3424 | state_str[0] = pinfo.pr_lwp.pr_sname; | |
3425 | state_str[1] = '\0'; | |
3426 | tem = build_string (state_str); | |
3427 | attrs = Fcons (Fcons (Qstate, tem), attrs); | |
3428 | } | |
3429 | ||
3430 | /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t, | |
3431 | need to get a string from it. */ | |
3432 | ||
3433 | /* FIXME: missing: Qtpgid */ | |
3434 | ||
3435 | /* FIXME: missing: | |
3436 | Qminflt | |
3437 | Qmajflt | |
3438 | Qcminflt | |
3439 | Qcmajflt | |
3440 | ||
bfe11752 DN |
3441 | Qutime |
3442 | Qcutime | |
f4f634e8 DN |
3443 | Qstime |
3444 | Qcstime | |
3445 | Are they available? */ | |
3446 | ||
bfe11752 | 3447 | attrs = Fcons (Fcons (Qtime, |
f4f634e8 DN |
3448 | list3 (make_number (pinfo.pr_time.tv_sec >> 16), |
3449 | make_number (pinfo.pr_time.tv_sec & 0xffff), | |
3450 | make_number (pinfo.pr_time.tv_nsec))), | |
3451 | attrs); | |
3452 | ||
bfe11752 | 3453 | attrs = Fcons (Fcons (Qctime, |
f4f634e8 DN |
3454 | list3 (make_number (pinfo.pr_ctime.tv_sec >> 16), |
3455 | make_number (pinfo.pr_ctime.tv_sec & 0xffff), | |
3456 | make_number (pinfo.pr_ctime.tv_nsec))), | |
3457 | attrs); | |
3458 | ||
3459 | attrs = Fcons (Fcons (Qpri, make_number (pinfo.pr_lwp.pr_pri)), attrs); | |
3460 | attrs = Fcons (Fcons (Qnice, make_number (pinfo.pr_lwp.pr_nice)), attrs); | |
3461 | attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (pinfo.pr_nlwp)), attrs); | |
3462 | ||
3463 | attrs = Fcons (Fcons (Qstart, | |
3464 | list3 (make_number (pinfo.pr_start.tv_sec >> 16), | |
3465 | make_number (pinfo.pr_start.tv_sec & 0xffff), | |
3466 | make_number (pinfo.pr_start.tv_nsec))), | |
3467 | attrs); | |
3468 | attrs = Fcons (Fcons (Qvsize, make_fixnum_or_float (pinfo.pr_size)), attrs); | |
3469 | attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (pinfo.pr_rssize)), attrs); | |
3470 | ||
3471 | /* pr_pctcpu and pr_pctmem are encoded as a fixed point 16 bit number in [0 ... 1]. */ | |
3472 | attrs = Fcons (Fcons (Qpcpu, (pinfo.pr_pctcpu * 100.0) / (double)0x8000), attrs); | |
3473 | attrs = Fcons (Fcons (Qpmem, (pinfo.pr_pctmem * 100.0) / (double)0x8000), attrs); | |
3474 | ||
3475 | decoded_cmd | |
3476 | = code_convert_string_norecord (make_unibyte_string (pinfo.pr_fname, | |
3477 | strlen (pinfo.pr_fname)), | |
3478 | Vlocale_coding_system, 0); | |
3479 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
3480 | decoded_cmd | |
3481 | = code_convert_string_norecord (make_unibyte_string (pinfo.pr_psargs, | |
3482 | strlen (pinfo.pr_psargs)), | |
3483 | Vlocale_coding_system, 0); | |
3484 | attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs); | |
3485 | } | |
3486 | ||
2d2d05d8 DN |
3487 | if (fd >= 0) |
3488 | emacs_close (fd); | |
3489 | ||
f4f634e8 DN |
3490 | UNGCPRO; |
3491 | return attrs; | |
3492 | } | |
06e111a6 | 3493 | |
f8d23104 DN |
3494 | /* The WINDOWSNT implementation is in w32.c. |
3495 | The MSDOS implementation is in dosfns.c. */ | |
c4605e09 | 3496 | #elif !defined (WINDOWSNT) && !defined (MSDOS) |
06e111a6 DN |
3497 | |
3498 | Lisp_Object | |
3499 | system_process_attributes (Lisp_Object pid) | |
3500 | { | |
9dcbe89b | 3501 | return Qnil; |
06e111a6 DN |
3502 | } |
3503 | ||
3504 | #endif /* !defined (WINDOWSNT) */ | |
3505 | ||
c4ea52a6 | 3506 | |
ab5796a9 MB |
3507 | /* arch-tag: edb43589-4e09-4544-b325-978b5b121dcf |
3508 | (do not change this comment) */ |