1 /* Interfaces to system-dependent kernel and library entries.
2 Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 Free Software Foundation, Inc.
6 This file is part of GNU Emacs.
8 GNU Emacs is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
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.
18 You should have received a copy of the GNU General Public License
19 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
32 #endif /* HAVE_PWD_H */
35 #endif /* HAVE_LIMITS_H */
41 #endif /* HAVE_ALLOCA_H */
44 /* Including stdlib.h isn't necessarily enough to get srandom
45 declared, e.g. without __USE_XOPEN_EXTENDED with glibc 2. */
47 /* The w32 build defines select stuff in w32.h, which is included by
48 sys/select.h (included below). */
50 #include "sysselect.h"
53 #include "blockinput.h"
57 #define write sys_write
62 #endif /* not WINDOWSNT */
64 /* Does anyone other than VMS need this? */
66 #define sys_fwrite fwrite
71 #include <sys/types.h>
76 #if !defined (USG) || defined (BSD_PGRPS)
78 #define setpgrp setpgid
82 /* Get SI_SRPC_DOMAIN, if it is available. */
83 #ifdef HAVE_SYS_SYSTEMINFO_H
84 #include <sys/systeminfo.h>
87 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
91 #include <sys/param.h>
94 extern unsigned start
__asm__ ("start");
104 #include <sys/ioctl.h>
111 #include <sys/utsname.h>
115 extern int quit_char
;
117 #include "keyboard.h"
120 #include "termhooks.h"
121 #include "termchar.h"
122 #include "termopts.h"
123 #include "dispextern.h"
125 #include "cm.h" /* for reset_sys_modes */
127 /* For serial_configure and serial_open. */
128 extern Lisp_Object QCport
, QCspeed
, QCprocess
;
129 extern Lisp_Object QCbytesize
, QCstopbits
, QCparity
, Qodd
, Qeven
;
130 extern Lisp_Object QCflowcontrol
, Qhw
, Qsw
, QCsummary
;
134 /* In process.h which conflicts with the local copy. */
136 int _cdecl
_spawnlp (int, const char *, const char *, ...);
137 int _cdecl
_getpid (void);
138 extern char *getwd (char *);
141 #include "syssignal.h"
148 #ifndef HAVE_STRUCT_UTIMBUF
149 /* We want to use utime rather than utimes, but we couldn't find the
150 structure declaration. We'll use the traditional one. */
158 /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */
163 static const int baud_convert
[] =
165 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200,
166 1800, 2400, 4800, 9600, 19200, 38400
172 #if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T)
174 #if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX)
182 void croak
P_ ((char *)) NO_RETURN
;
184 /* Temporary used by `sigblock' when defined in terms of signprocmask. */
186 SIGMASKTYPE sigprocmask_set
;
189 #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME)
191 /* Return the current working directory. Returns NULL on errors.
192 Any other returned value must be freed with free. This is used
193 only when get_current_dir_name is not defined on the system. */
195 get_current_dir_name ()
199 struct stat dotstat
, pwdstat
;
200 /* If PWD is accurate, use it instead of calling getwd. PWD is
201 sometimes a nicer name, and using it may avoid a fatal error if a
202 parent directory is searchable but not readable. */
203 if ((pwd
= getenv ("PWD")) != 0
204 && (IS_DIRECTORY_SEP (*pwd
) || (*pwd
&& IS_DEVICE_SEP (pwd
[1])))
205 && stat (pwd
, &pwdstat
) == 0
206 && stat (".", &dotstat
) == 0
207 && dotstat
.st_ino
== pwdstat
.st_ino
208 && dotstat
.st_dev
== pwdstat
.st_dev
210 && strlen (pwd
) < MAXPATHLEN
214 buf
= (char *) malloc (strlen (pwd
) + 1);
222 size_t buf_size
= 1024;
223 buf
= (char *) malloc (buf_size
);
228 if (getcwd (buf
, buf_size
) == buf
)
232 int tmp_errno
= errno
;
238 buf
= (char *) realloc (buf
, buf_size
);
246 /* We need MAXPATHLEN here. */
247 buf
= (char *) malloc (MAXPATHLEN
+ 1);
250 if (getwd (buf
) == NULL
)
252 int tmp_errno
= errno
;
264 /* Discard pending input on all input descriptors. */
270 struct emacs_tty buf
;
275 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
276 while (dos_keyread () != -1)
278 #else /* not MSDOS */
280 struct tty_display_info
*tty
;
281 for (tty
= tty_list
; tty
; tty
= tty
->next
)
283 if (tty
->input
) /* Is the device suspended? */
285 EMACS_GET_TTY (fileno (tty
->input
), &buf
);
286 EMACS_SET_TTY (fileno (tty
->input
), &buf
, 0);
290 #endif /* not MSDOS */
291 #endif /* not WINDOWSNT */
297 /* Arrange for character C to be read as the next input from
299 XXX What if we have multiple ttys?
305 if (! FRAME_TERMCAP_P (SELECTED_FRAME ()))
308 /* Should perhaps error if in batch mode */
310 ioctl (fileno (CURTTY()->input
), TIOCSTI
, &c
);
311 #else /* no TIOCSTI */
312 error ("Cannot stuff terminal input characters in this version of Unix");
313 #endif /* no TIOCSTI */
319 init_baud_rate (int fd
)
327 #else /* not DOS_NT */
333 emacs_ospeed
= cfgetospeed (&sg
);
334 #else /* not TERMIOS */
342 ioctl (fd
, TCGETA
, &sg
);
344 emacs_ospeed
= sg
.c_cflag
& CBAUD
;
345 #else /* neither TERMIOS nor TERMIO */
348 sg
.sg_ospeed
= B9600
;
349 if (ioctl (fd
, TIOCGETP
, &sg
) < 0)
351 emacs_ospeed
= sg
.sg_ospeed
;
352 #endif /* not HAVE_TERMIO */
353 #endif /* not HAVE_TERMIOS */
354 #endif /* not DOS_NT */
357 baud_rate
= (emacs_ospeed
< sizeof baud_convert
/ sizeof baud_convert
[0]
358 ? baud_convert
[emacs_ospeed
] : 9600);
366 set_exclusive_use (fd
)
370 ioctl (fd
, FIOCLEX
, 0);
372 /* Ok to do nothing if this feature does not exist */
377 wait_without_blocking ()
379 croak ("wait_without_blocking");
380 synch_process_alive
= 0;
383 #endif /* not subprocesses */
385 int wait_debugging
; /* Set nonzero to make following function work under dbx
386 (at least for bsd). */
389 wait_for_termination_signal ()
392 /* Wait for subprocess with process id `pid' to terminate and
393 make sure it will get eliminated (not remain forever as a zombie) */
396 wait_for_termination (pid
)
402 #if defined (BSD_SYSTEM) || defined (HPUX)
403 /* Note that kill returns -1 even if the process is just a zombie now.
404 But inevitably a SIGCHLD interrupt should be generated
405 and child_sig will do wait3 and make the process go away. */
406 /* There is some indication that there is a bug involved with
407 termination of subprocesses, perhaps involving a kernel bug too,
408 but no idea what it is. Just as a hunch we signal SIGCHLD to see
409 if that causes the problem to go away or get worse. */
410 sigsetmask (sigmask (SIGCHLD
));
411 if (0 > kill (pid
, 0))
413 sigsetmask (SIGEMPTYMASK
);
414 kill (getpid (), SIGCHLD
);
420 sigpause (SIGEMPTYMASK
);
421 #else /* not BSD_SYSTEM, and not HPUX version >= 6 */
422 #ifdef POSIX_SIGNALS /* would this work for GNU/Linux as well? */
423 sigblock (sigmask (SIGCHLD
));
425 if (kill (pid
, 0) == -1 && errno
== ESRCH
)
427 sigunblock (sigmask (SIGCHLD
));
431 sigsuspend (&empty_mask
);
432 #else /* not POSIX_SIGNALS */
433 #ifdef HAVE_SYSV_SIGPAUSE
435 if (0 > kill (pid
, 0))
441 #else /* not HAVE_SYSV_SIGPAUSE */
445 #else /* not WINDOWSNT */
446 if (0 > kill (pid
, 0))
448 /* Using sleep instead of pause avoids timing error.
449 If the inferior dies just before the sleep,
450 we lose just one second. */
452 #endif /* not WINDOWSNT */
453 #endif /* not HAVE_SYSV_SIGPAUSE */
454 #endif /* not POSIX_SIGNALS */
455 #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */
456 #else /* not subprocesses */
458 #endif /* not subprocesses */
465 * flush any pending output
466 * (may flush input as well; it does not matter the way we use it)
470 flush_pending_output (channel
)
474 /* If we try this, we get hit with SIGTTIN, because
475 the child's tty belongs to the child's pgrp. */
478 ioctl (channel
, TCFLSH
, 1);
482 /* 3rd arg should be ignored
483 but some 4.2 kernels actually want the address of an int
484 and nonzero means something different. */
485 ioctl (channel
, TIOCFLUSH
, &zero
);
491 /* Set up the terminal at the other end of a pseudo-terminal that
492 we will be controlling an inferior through.
493 It should not echo or do line-editing, since that is done
494 in Emacs. No padding needed for insertion into an Emacs buffer. */
497 child_setup_tty (out
)
503 EMACS_GET_TTY (out
, &s
);
505 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
506 s
.main
.c_oflag
|= OPOST
; /* Enable output postprocessing */
507 s
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL on output */
509 /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html
510 Some versions of GNU Hurd do not have FFDLY? */
512 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
|FFDLY
);
513 /* No output delays */
515 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
);
516 /* No output delays */
519 s
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
520 s
.main
.c_lflag
|= ISIG
; /* Enable signals */
522 s
.main
.c_iflag
&= ~IUCLC
; /* Disable downcasing on input. */
525 s
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
528 s
.main
.c_oflag
&= ~OLCUC
; /* Disable upcasing on output. */
530 s
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
531 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CSIZE
) | CS8
; /* Don't strip 8th bit */
532 s
.main
.c_lflag
|= ICANON
; /* Enable erase/kill and eof processing */
533 s
.main
.c_cc
[VEOF
] = 04; /* insure that EOF is Control-D */
534 s
.main
.c_cc
[VERASE
] = CDISABLE
; /* disable erase processing */
535 s
.main
.c_cc
[VKILL
] = CDISABLE
; /* disable kill processing */
538 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
541 #ifdef SIGNALS_VIA_CHARACTERS
542 /* the QUIT and INTR character are used in process_send_signal
543 so set them here to something useful. */
544 if (s
.main
.c_cc
[VQUIT
] == CDISABLE
)
545 s
.main
.c_cc
[VQUIT
] = '\\'&037; /* Control-\ */
546 if (s
.main
.c_cc
[VINTR
] == CDISABLE
)
547 s
.main
.c_cc
[VINTR
] = 'C'&037; /* Control-C */
548 #endif /* not SIGNALS_VIA_CHARACTERS */
551 /* AIX enhanced edit loses NULs, so disable it */
554 s
.main
.c_iflag
&= ~ASCEDIT
;
556 /* Also, PTY overloads NUL and BREAK.
557 don't ignore break, but don't signal either, so it looks like NUL. */
558 s
.main
.c_iflag
&= ~IGNBRK
;
559 s
.main
.c_iflag
&= ~BRKINT
;
560 /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here
561 unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional
562 would force it to 0377. That looks like duplicated code. */
563 s
.main
.c_cc
[VEOL
] = CDISABLE
;
564 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
567 #else /* not HAVE_TERMIO */
569 s
.main
.sg_flags
&= ~(ECHO
| CRMOD
| ANYP
| ALLDELAY
| RAW
| LCASE
571 s
.main
.sg_flags
|= LPASS8
;
572 s
.main
.sg_erase
= 0377;
573 s
.main
.sg_kill
= 0377;
574 s
.lmode
= LLITOUT
| s
.lmode
; /* Don't strip 8th bit */
576 #endif /* not HAVE_TERMIO */
578 EMACS_SET_TTY (out
, &s
, 0);
580 #endif /* not DOS_NT */
583 #endif /* subprocesses */
585 /* Record a signal code and the handler for it. */
589 SIGTYPE (*handler
) P_ ((int));
592 static void save_signal_handlers
P_ ((struct save_signal
*));
593 static void restore_signal_handlers
P_ ((struct save_signal
*));
595 /* Suspend the Emacs process; give terminal to its superior. */
600 #if defined (SIGTSTP) && !defined (MSDOS)
603 int pgrp
= EMACS_GETPGRP (0);
604 EMACS_KILLPG (pgrp
, SIGTSTP
);
607 #else /* No SIGTSTP */
608 /* On a system where suspending is not implemented,
609 instead fork a subshell and let it talk directly to the terminal
613 #endif /* no SIGTSTP */
616 /* Fork a subshell. */
621 #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
623 char oldwd
[MAXPATHLEN
+1]; /* Fixed length is safe on MSDOS. */
626 struct save_signal saved_handlers
[5];
628 unsigned char *str
= 0;
631 saved_handlers
[0].code
= SIGINT
;
632 saved_handlers
[1].code
= SIGQUIT
;
633 saved_handlers
[2].code
= SIGTERM
;
635 saved_handlers
[3].code
= SIGIO
;
636 saved_handlers
[4].code
= 0;
638 saved_handlers
[3].code
= 0;
641 /* Mentioning current_buffer->buffer would mean including buffer.h,
642 which somehow wedges the hp compiler. So instead... */
644 dir
= intern ("default-directory");
645 if (NILP (Fboundp (dir
)))
647 dir
= Fsymbol_value (dir
);
651 dir
= expand_and_dir_to_file (Funhandled_file_name_directory (dir
), Qnil
);
652 str
= (unsigned char *) alloca (SCHARS (dir
) + 2);
654 bcopy (SDATA (dir
), str
, len
);
655 if (str
[len
- 1] != '/') str
[len
++] = '/';
661 save_signal_handlers (saved_handlers
);
662 synch_process_alive
= 1;
666 error ("Can't spawn subshell");
673 #ifdef DOS_NT /* MW, Aug 1993 */
676 sh
= (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
679 sh
= (char *) egetenv ("SHELL");
683 /* Use our buffer's default directory for the subshell. */
685 chdir ((char *) str
);
688 close_process_descs (); /* Close Emacs's pipes/ptys */
691 #ifdef SET_EMACS_PRIORITY
693 extern EMACS_INT emacs_priority
;
695 if (emacs_priority
< 0)
696 nice (-emacs_priority
);
700 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
702 char *epwd
= getenv ("PWD");
703 char old_pwd
[MAXPATHLEN
+1+4];
705 /* If PWD is set, pass it with corrected value. */
708 strcpy (old_pwd
, epwd
);
709 if (str
[len
- 1] == '/')
711 setenv ("PWD", str
, 1);
716 putenv (old_pwd
); /* restore previous value */
718 #else /* not MSDOS */
720 /* Waits for process completion */
721 pid
= _spawnlp (_P_WAIT
, sh
, sh
, NULL
);
724 write (1, "Can't execute subshell", 22);
725 #else /* not WINDOWSNT */
726 execlp (sh
, sh
, (char *) 0);
727 write (1, "Can't execute subshell", 22);
729 #endif /* not WINDOWSNT */
730 #endif /* not MSDOS */
733 /* Do this now if we did not do it before. */
735 save_signal_handlers (saved_handlers
);
736 synch_process_alive
= 1;
740 wait_for_termination (pid
);
742 restore_signal_handlers (saved_handlers
);
743 synch_process_alive
= 0;
747 save_signal_handlers (saved_handlers
)
748 struct save_signal
*saved_handlers
;
750 while (saved_handlers
->code
)
752 saved_handlers
->handler
753 = (SIGTYPE (*) P_ ((int))) signal (saved_handlers
->code
, SIG_IGN
);
759 restore_signal_handlers (saved_handlers
)
760 struct save_signal
*saved_handlers
;
762 while (saved_handlers
->code
)
764 signal (saved_handlers
->code
, saved_handlers
->handler
);
770 /* If SIGIO is broken, don't do anything. */
787 unrequest_sigio (void)
794 int old_fcntl_flags
[MAXDESC
];
801 old_fcntl_flags
[fd
] = fcntl (fd
, F_GETFL
, 0) & ~FASYNC
;
802 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
] | FASYNC
);
804 interrupts_deferred
= 0;
812 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
]);
816 #ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */
817 /* XXX Uhm, FASYNC is not used anymore here. */
818 /* XXX Yeah, but you need it for SIGIO, don't you? */
827 sigunblock (sigmask (SIGWINCH
));
829 sigunblock (sigmask (SIGIO
));
831 interrupts_deferred
= 0;
835 unrequest_sigio (void)
840 #if 0 /* XXX What's wrong with blocking SIGIO under X? */
846 sigblock (sigmask (SIGWINCH
));
848 sigblock (sigmask (SIGIO
));
849 interrupts_deferred
= 1;
852 #else /* no FASYNC */
858 if (noninteractive
|| read_socket_hook
)
861 croak ("request_sigio");
867 if (noninteractive
|| read_socket_hook
)
870 croak ("unrequest_sigio");
878 /* Saving and restoring the process group of Emacs's terminal. */
882 /* The process group of which Emacs was a member when it initially
885 If Emacs was in its own process group (i.e. inherited_pgroup ==
886 getpid ()), then we know we're running under a shell with job
887 control (Emacs would never be run as part of a pipeline).
890 If Emacs was not in its own process group, then we know we're
891 running under a shell (or a caller) that doesn't know how to
892 separate itself from Emacs (like sh). Emacs must be in its own
893 process group in order to receive SIGIO correctly. In this
894 situation, we put ourselves in our own pgroup, forcibly set the
895 tty's pgroup to our pgroup, and make sure to restore and reinstate
896 the tty's pgroup just like any other terminal setting. If
897 inherited_group was not the tty's pgroup, then we'll get a
898 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
899 it goes foreground in the future, which is what should happen.
901 This variable is initialized in emacs.c. */
902 int inherited_pgroup
;
904 /* Split off the foreground process group to Emacs alone. When we are
905 in the foreground, but not started in our own process group,
906 redirect the tty device handle FD to point to our own process
907 group. We need to be in our own process group to receive SIGIO
910 narrow_foreground_group (int fd
)
914 setpgrp (0, inherited_pgroup
);
916 /* XXX inherited_pgroup should not be zero here, but GTK seems to
918 if (! inherited_pgroup
)
919 abort (); /* Should not happen. */
921 if (inherited_pgroup
!= me
)
922 EMACS_SET_TTY_PGRP (fd
, &me
); /* XXX This only works on the controlling tty. */
926 /* Set the tty to our original foreground group. */
928 widen_foreground_group (int fd
)
930 if (inherited_pgroup
!= getpid ())
931 EMACS_SET_TTY_PGRP (fd
, &inherited_pgroup
);
932 setpgrp (0, inherited_pgroup
);
935 #endif /* BSD_PGRPS */
937 /* Getting and setting emacs_tty structures. */
939 /* Set *TC to the parameters associated with the terminal FD.
940 Return zero if all's well, or -1 if we ran into an error we
941 couldn't deal with. */
943 emacs_get_tty (fd
, settings
)
945 struct emacs_tty
*settings
;
947 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
949 /* We have those nifty POSIX tcmumbleattr functions. */
950 bzero (&settings
->main
, sizeof (settings
->main
));
951 if (tcgetattr (fd
, &settings
->main
) < 0)
956 /* The SYSV-style interface? */
957 if (ioctl (fd
, TCGETA
, &settings
->main
) < 0)
962 /* I give up - I hope you have the BSD ioctls. */
963 if (ioctl (fd
, TIOCGETP
, &settings
->main
) < 0)
965 #endif /* not DOS_NT */
969 /* Suivant - Do we have to get struct ltchars data? */
971 if (ioctl (fd
, TIOCGLTC
, &settings
->ltchars
) < 0)
975 /* How about a struct tchars and a wordful of lmode bits? */
977 if (ioctl (fd
, TIOCGETC
, &settings
->tchars
) < 0
978 || ioctl (fd
, TIOCLGET
, &settings
->lmode
) < 0)
982 /* We have survived the tempest. */
987 /* Set the parameters of the tty on FD according to the contents of
988 *SETTINGS. If FLUSHP is non-zero, we discard input.
989 Return 0 if all went well, and -1 if anything failed. */
992 emacs_set_tty (fd
, settings
, flushp
)
994 struct emacs_tty
*settings
;
997 /* Set the primary parameters - baud rate, character size, etcetera. */
1000 /* We have those nifty POSIX tcmumbleattr functions.
1001 William J. Smith <wjs@wiis.wang.com> writes:
1002 "POSIX 1003.1 defines tcsetattr to return success if it was
1003 able to perform any of the requested actions, even if some
1004 of the requested actions could not be performed.
1005 We must read settings back to ensure tty setup properly.
1006 AIX requires this to keep tty from hanging occasionally." */
1007 /* This make sure that we don't loop indefinitely in here. */
1008 for (i
= 0 ; i
< 10 ; i
++)
1009 if (tcsetattr (fd
, flushp
? TCSAFLUSH
: TCSADRAIN
, &settings
->main
) < 0)
1020 bzero (&new, sizeof (new));
1021 /* Get the current settings, and see if they're what we asked for. */
1022 tcgetattr (fd
, &new);
1023 /* We cannot use memcmp on the whole structure here because under
1024 * aix386 the termios structure has some reserved field that may
1027 if ( new.c_iflag
== settings
->main
.c_iflag
1028 && new.c_oflag
== settings
->main
.c_oflag
1029 && new.c_cflag
== settings
->main
.c_cflag
1030 && new.c_lflag
== settings
->main
.c_lflag
1031 && memcmp (new.c_cc
, settings
->main
.c_cc
, NCCS
) == 0)
1039 /* The SYSV-style interface? */
1040 if (ioctl (fd
, flushp
? TCSETAF
: TCSETAW
, &settings
->main
) < 0)
1045 /* I give up - I hope you have the BSD ioctls. */
1046 if (ioctl (fd
, (flushp
) ? TIOCSETP
: TIOCSETN
, &settings
->main
) < 0)
1048 #endif /* not DOS_NT */
1053 /* Suivant - Do we have to get struct ltchars data? */
1055 if (ioctl (fd
, TIOCSLTC
, &settings
->ltchars
) < 0)
1059 /* How about a struct tchars and a wordful of lmode bits? */
1061 if (ioctl (fd
, TIOCSETC
, &settings
->tchars
) < 0
1062 || ioctl (fd
, TIOCLSET
, &settings
->lmode
) < 0)
1066 /* We have survived the tempest. */
1073 int old_fcntl_owner
[MAXDESC
];
1074 #endif /* F_SETOWN */
1076 /* This may also be defined in stdio,
1077 but if so, this does no harm,
1078 and using the same name avoids wasting the other one's space. */
1081 unsigned char _sobuf
[BUFSIZ
+8];
1083 char _sobuf
[BUFSIZ
];
1087 static struct ltchars new_ltchars
= {-1,-1,-1,-1,-1,-1};
1090 static struct tchars new_tchars
= {-1,-1,-1,-1,-1,-1};
1093 /* Initialize the terminal mode on all tty devices that are currently
1097 init_all_sys_modes (void)
1099 struct tty_display_info
*tty
;
1100 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1101 init_sys_modes (tty
);
1104 /* Initialize the terminal mode on the given tty device. */
1107 init_sys_modes (tty_out
)
1108 struct tty_display_info
*tty_out
;
1110 struct emacs_tty tty
;
1112 Vtty_erase_char
= Qnil
;
1117 if (!tty_out
->output
)
1118 return; /* The tty is suspended. */
1122 /* read_socket_hook is not global anymore. I think doing this
1123 unconditionally will not cause any problems. */
1124 if (! read_socket_hook
&& EQ (Vinitial_window_system
, Qnil
))
1126 narrow_foreground_group (fileno (tty_out
->input
));
1129 if (! tty_out
->old_tty
)
1130 tty_out
->old_tty
= (struct emacs_tty
*) xmalloc (sizeof (struct emacs_tty
));
1132 EMACS_GET_TTY (fileno (tty_out
->input
), tty_out
->old_tty
);
1134 tty
= *tty_out
->old_tty
;
1136 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
1137 XSETINT (Vtty_erase_char
, tty
.main
.c_cc
[VERASE
]);
1139 tty
.main
.c_iflag
|= (IGNBRK
); /* Ignore break condition */
1140 tty
.main
.c_iflag
&= ~ICRNL
; /* Disable map of CR to NL on input */
1141 #ifdef INLCR /* I'm just being cautious,
1142 since I can't check how widespread INLCR is--rms. */
1143 tty
.main
.c_iflag
&= ~INLCR
; /* Disable map of NL to CR on input */
1146 tty
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
1148 tty
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
1149 tty
.main
.c_lflag
&= ~ICANON
; /* Disable erase/kill processing */
1151 tty
.main
.c_lflag
&= ~IEXTEN
; /* Disable other editing characters. */
1153 tty
.main
.c_lflag
|= ISIG
; /* Enable signals */
1154 if (tty_out
->flow_control
)
1156 tty
.main
.c_iflag
|= IXON
; /* Enable start/stop output control */
1158 tty
.main
.c_iflag
&= ~IXANY
;
1162 tty
.main
.c_iflag
&= ~IXON
; /* Disable start/stop output control */
1163 tty
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL
1165 tty
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
1167 if (tty_out
->meta_key
)
1169 tty
.main
.c_cflag
|= CS8
; /* allow 8th bit on input */
1170 tty
.main
.c_cflag
&= ~PARENB
;/* Don't check parity */
1173 if (tty_out
->input
== stdin
)
1175 tty
.main
.c_cc
[VINTR
] = quit_char
; /* C-g (usually) gives SIGINT */
1176 /* Set up C-g for both SIGQUIT and SIGINT.
1177 We don't know which we will get, but we handle both alike
1178 so which one it really gives us does not matter. */
1179 tty
.main
.c_cc
[VQUIT
] = quit_char
;
1183 /* We normally don't get interrupt or quit signals from tty
1184 devices other than our controlling terminal; therefore,
1185 we must handle C-g as normal input. Unfortunately, this
1186 means that the interrupt and quit feature must be
1187 disabled on secondary ttys, or we would not even see the
1190 Note that even though emacsclient could have special code
1191 to pass SIGINT to Emacs, we should _not_ enable
1192 interrupt/quit keys for emacsclient frames. This means
1193 that we can't break out of loops in C code from a
1194 secondary tty frame, but we can always decide what
1195 display the C-g came from, which is more important from a
1196 usability point of view. (Consider the case when two
1197 people work together using the same Emacs instance.) */
1198 tty
.main
.c_cc
[VINTR
] = CDISABLE
;
1199 tty
.main
.c_cc
[VQUIT
] = CDISABLE
;
1201 tty
.main
.c_cc
[VMIN
] = 1; /* Input should wait for at least 1 char */
1202 tty
.main
.c_cc
[VTIME
] = 0; /* no matter how long that takes. */
1204 tty
.main
.c_cc
[VSWTCH
] = CDISABLE
; /* Turn off shell layering use
1208 #if defined (__mips__) || defined (HAVE_TCATTR)
1210 tty
.main
.c_cc
[VSUSP
] = CDISABLE
; /* Turn off mips handling of C-z. */
1213 tty
.main
.c_cc
[V_DSUSP
] = CDISABLE
; /* Turn off mips handling of C-y. */
1214 #endif /* V_DSUSP */
1215 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
1216 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1219 tty
.main
.c_cc
[VLNEXT
] = CDISABLE
;
1222 tty
.main
.c_cc
[VREPRINT
] = CDISABLE
;
1223 #endif /* VREPRINT */
1225 tty
.main
.c_cc
[VWERASE
] = CDISABLE
;
1226 #endif /* VWERASE */
1228 tty
.main
.c_cc
[VDISCARD
] = CDISABLE
;
1229 #endif /* VDISCARD */
1231 if (tty_out
->flow_control
)
1234 tty
.main
.c_cc
[VSTART
] = '\021';
1237 tty
.main
.c_cc
[VSTOP
] = '\023';
1243 tty
.main
.c_cc
[VSTART
] = CDISABLE
;
1246 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1249 #endif /* mips or HAVE_TCATTR */
1253 /* AIX enhanced edit loses NULs, so disable it. */
1254 tty
.main
.c_line
= 0;
1255 tty
.main
.c_iflag
&= ~ASCEDIT
;
1257 tty
.main
.c_cc
[VSTRT
] = CDISABLE
;
1258 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1259 tty
.main
.c_cc
[VSUSP
] = CDISABLE
;
1260 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1261 #endif /* IBMR2AIX */
1262 if (tty_out
->flow_control
)
1265 tty
.main
.c_cc
[VSTART
] = '\021';
1268 tty
.main
.c_cc
[VSTOP
] = '\023';
1271 /* Also, PTY overloads NUL and BREAK.
1272 don't ignore break, but don't signal either, so it looks like NUL.
1273 This really serves a purpose only if running in an XTERM window
1274 or via TELNET or the like, but does no harm elsewhere. */
1275 tty
.main
.c_iflag
&= ~IGNBRK
;
1276 tty
.main
.c_iflag
&= ~BRKINT
;
1278 #else /* if not HAVE_TERMIO */
1280 XSETINT (Vtty_erase_char
, tty
.main
.sg_erase
);
1281 tty
.main
.sg_flags
&= ~(ECHO
| CRMOD
| XTABS
);
1283 tty
.main
.sg_flags
|= ANYP
;
1284 tty
.main
.sg_flags
|= interrupt_input
? RAW
: CBREAK
;
1285 #endif /* not DOS_NT */
1286 #endif /* not HAVE_TERMIO */
1288 /* If going to use CBREAK mode, we must request C-g to interrupt
1289 and turn off start and stop chars, etc. If not going to use
1290 CBREAK mode, do this anyway so as to turn off local flow
1291 control for user coming over network on 4.2; in this case,
1292 only t_stopc and t_startc really matter. */
1295 /* Note: if not using CBREAK mode, it makes no difference how we
1297 tty
.tchars
= new_tchars
;
1298 tty
.tchars
.t_intrc
= quit_char
;
1299 if (tty_out
->flow_control
)
1301 tty
.tchars
.t_startc
= '\021';
1302 tty
.tchars
.t_stopc
= '\023';
1305 tty
.lmode
= LDECCTQ
| LLITOUT
| LPASS8
| LNOFLSH
| tty_out
->old_tty
.lmode
;
1307 #endif /* HAVE_TCHARS */
1308 #endif /* not HAVE_TERMIO */
1311 tty
.ltchars
= new_ltchars
;
1312 #endif /* HAVE_LTCHARS */
1313 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
1314 if (!tty_out
->term_initted
)
1315 internal_terminal_init ();
1316 dos_ttraw (tty_out
);
1319 EMACS_SET_TTY (fileno (tty_out
->input
), &tty
, 0);
1321 /* This code added to insure that, if flow-control is not to be used,
1322 we have an unlocked terminal at the start. */
1325 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TCXONC
, 1);
1328 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TIOCSTART
, 0);
1331 #if defined (HAVE_TERMIOS) || defined (HPUX)
1333 if (!tty_out
->flow_control
) tcflow (fileno (tty_out
->input
), TCOON
);
1338 #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */
1339 if (interrupt_input
)
1341 old_fcntl_owner
[fileno (tty_out
->input
)] =
1342 fcntl (fileno (tty_out
->input
), F_GETOWN
, 0);
1343 fcntl (fileno (tty_out
->input
), F_SETOWN
, getpid ());
1344 init_sigio (fileno (tty_out
->input
));
1346 if (gpm_tty
== tty_out
)
1348 /* Arrange for mouse events to give us SIGIO signals. */
1349 fcntl (gpm_fd
, F_SETOWN
, getpid ());
1350 fcntl (gpm_fd
, F_SETFL
, fcntl (gpm_fd
, F_GETFL
, 0) | O_NONBLOCK
);
1351 init_sigio (gpm_fd
);
1353 #endif /* HAVE_GPM */
1355 #endif /* F_GETOWN */
1356 #endif /* F_SETFL */
1359 /* This symbol is defined on recent USG systems.
1360 Someone says without this call USG won't really buffer the file
1361 even with a call to setbuf. */
1362 setvbuf (tty_out
->output
, (char *) _sobuf
, _IOFBF
, sizeof _sobuf
);
1364 setbuf (tty_out
->output
, (char *) _sobuf
);
1367 if (tty_out
->terminal
->set_terminal_modes_hook
)
1368 tty_out
->terminal
->set_terminal_modes_hook (tty_out
->terminal
);
1370 if (!tty_out
->term_initted
)
1372 Lisp_Object tail
, frame
;
1373 FOR_EACH_FRAME (tail
, frame
)
1375 /* XXX This needs to be revised. */
1376 if (FRAME_TERMCAP_P (XFRAME (frame
))
1377 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1378 init_frame_faces (XFRAME (frame
));
1382 if (tty_out
->term_initted
&& no_redraw_on_reenter
)
1384 /* We used to call "direct_output_forward_char(0)" here,
1385 but it's not clear why, since it may not do anything anyway. */
1389 Lisp_Object tail
, frame
;
1391 FOR_EACH_FRAME (tail
, frame
)
1393 if ((FRAME_TERMCAP_P (XFRAME (frame
))
1394 || FRAME_MSDOS_P (XFRAME (frame
)))
1395 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1396 FRAME_GARBAGED_P (XFRAME (frame
)) = 1;
1400 tty_out
->term_initted
= 1;
1403 /* Return nonzero if safe to use tabs in output.
1404 At the time this is called, init_sys_modes has not been done yet. */
1407 tabs_safe_p (int fd
)
1409 struct emacs_tty etty
;
1411 EMACS_GET_TTY (fd
, &etty
);
1412 return EMACS_TTY_TABS_OK (&etty
);
1415 /* Get terminal size from system.
1416 Store number of lines into *HEIGHTP and width into *WIDTHP.
1417 We store 0 if there's no valid information. */
1420 get_tty_size (int fd
, int *widthp
, int *heightp
)
1426 struct winsize size
;
1428 if (ioctl (fd
, TIOCGWINSZ
, &size
) == -1)
1429 *widthp
= *heightp
= 0;
1432 *widthp
= size
.ws_col
;
1433 *heightp
= size
.ws_row
;
1439 /* SunOS - style. */
1440 struct ttysize size
;
1442 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1443 *widthp
= *heightp
= 0;
1446 *widthp
= size
.ts_cols
;
1447 *heightp
= size
.ts_lines
;
1452 *widthp
= ScreenCols ();
1453 *heightp
= ScreenRows ();
1454 #else /* system doesn't know size */
1458 #endif /* not SunOS-style */
1459 #endif /* not BSD-style */
1462 /* Set the logical window size associated with descriptor FD
1463 to HEIGHT and WIDTH. This is used mainly with ptys. */
1466 set_window_size (fd
, height
, width
)
1467 int fd
, height
, width
;
1472 struct winsize size
;
1473 size
.ws_row
= height
;
1474 size
.ws_col
= width
;
1476 if (ioctl (fd
, TIOCSWINSZ
, &size
) == -1)
1477 return 0; /* error */
1484 /* SunOS - style. */
1485 struct ttysize size
;
1486 size
.ts_lines
= height
;
1487 size
.ts_cols
= width
;
1489 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1495 #endif /* not SunOS-style */
1496 #endif /* not BSD-style */
1501 /* Prepare all terminal devices for exiting Emacs. */
1504 reset_all_sys_modes (void)
1506 struct tty_display_info
*tty
;
1507 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1508 reset_sys_modes (tty
);
1511 /* Prepare the terminal for closing it; move the cursor to the
1512 bottom of the frame, turn off interrupt-driven I/O, etc. */
1515 reset_sys_modes (tty_out
)
1516 struct tty_display_info
*tty_out
;
1523 if (!tty_out
->term_initted
)
1526 if (!tty_out
->output
)
1527 return; /* The tty is suspended. */
1529 /* Go to and clear the last line of the terminal. */
1531 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1533 /* Code adapted from tty_clear_end_of_line. */
1534 if (tty_out
->TS_clr_line
)
1536 emacs_tputs (tty_out
, tty_out
->TS_clr_line
, 1, cmputc
);
1539 { /* have to do it the hard way */
1541 tty_turn_off_insert (tty_out
);
1543 for (i
= curX (tty_out
); i
< FrameCols (tty_out
) - 1; i
++)
1545 fputc (' ', tty_out
->output
);
1549 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1550 fflush (tty_out
->output
);
1552 if (tty_out
->terminal
->reset_terminal_modes_hook
)
1553 tty_out
->terminal
->reset_terminal_modes_hook (tty_out
->terminal
);
1556 /* Avoid possible loss of output when changing terminal modes. */
1557 fsync (fileno (tty_out
->output
));
1561 #ifdef F_SETOWN /* F_SETFL does not imply existence of F_SETOWN */
1562 if (interrupt_input
)
1564 reset_sigio (fileno (tty_out
->input
));
1565 fcntl (fileno (tty_out
->input
), F_SETOWN
,
1566 old_fcntl_owner
[fileno (tty_out
->input
)]);
1568 #endif /* F_SETOWN */
1570 fcntl (fileno (tty_out
->input
), F_SETFL
,
1571 fcntl (fileno (tty_out
->input
), F_GETFL
, 0) & ~O_NDELAY
);
1573 #endif /* F_SETFL */
1575 if (tty_out
->old_tty
)
1576 while (EMACS_SET_TTY (fileno (tty_out
->input
),
1577 tty_out
->old_tty
, 0) < 0 && errno
== EINTR
)
1580 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
1585 widen_foreground_group (fileno (tty_out
->input
));
1591 /* Set up the proper status flags for use of a pty. */
1597 /* I'm told that TOICREMOTE does not mean control chars
1598 "can't be sent" but rather that they don't have
1599 input-editing or signaling effects.
1600 That should be good, because we have other ways
1601 to do those things in Emacs.
1602 However, telnet mode seems not to work on 4.2.
1603 So TIOCREMOTE is turned off now. */
1605 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
1606 will hang. In particular, the "timeout" feature (which
1607 causes a read to return if there is no data available)
1608 does this. Also it is known that telnet mode will hang
1609 in such a way that Emacs must be stopped (perhaps this
1610 is the same problem).
1612 If TIOCREMOTE is turned off, then there is a bug in
1613 hp-ux which sometimes loses data. Apparently the
1614 code which blocks the master process when the internal
1615 buffer fills up does not work. Other than this,
1616 though, everything else seems to work fine.
1618 Since the latter lossage is more benign, we may as well
1619 lose that way. -- cph */
1621 #if defined(UNIX98_PTYS)
1624 ioctl (fd
, FIONBIO
, &on
);
1629 #endif /* HAVE_PTYS */
1631 #if !defined(CANNOT_DUMP) || !defined(SYSTEM_MALLOC)
1632 /* Some systems that cannot dump also cannot implement these. */
1635 * Return the address of the start of the text segment prior to
1636 * doing an unexec. After unexec the return value is undefined.
1637 * See crt0.c for further explanation and _start.
1641 #if !(defined (__NetBSD__) && defined (__ELF__))
1642 #ifndef HAVE_TEXT_START
1647 return ((char *) TEXT_START
);
1649 extern int _start ();
1650 return ((char *) _start
);
1651 #endif /* TEXT_START */
1653 #endif /* not HAVE_TEXT_START */
1657 * Return the address of the start of the data segment prior to
1658 * doing an unexec. After unexec the return value is undefined.
1659 * See crt0.c for further information and definition of data_start.
1661 * Apparently, on BSD systems this is etext at startup. On
1662 * USG systems (swapping) this is highly mmu dependent and
1663 * is also dependent on whether or not the program is running
1664 * with shared text. Generally there is a (possibly large)
1665 * gap between end of text and start of data with shared text.
1667 * On Uniplus+ systems with shared text, data starts at a
1668 * fixed address. Each port (from a given oem) is generally
1669 * different, and the specific value of the start of data can
1670 * be obtained via the UniPlus+ specific "uvar" system call,
1671 * however the method outlined in crt0.c seems to be more portable.
1673 * Probably what will have to happen when a USG unexec is available,
1674 * at least on UniPlus, is temacs will have to be made unshared so
1675 * that text and data are contiguous. Then once loadup is complete,
1676 * unexec will produce a shared executable where the data can be
1677 * at the normal shared text boundary and the startofdata variable
1678 * will be patched by unexec to the correct value.
1682 #ifndef start_of_data
1687 return ((char *) DATA_START
);
1689 #ifdef ORDINARY_LINK
1691 * This is a hack. Since we're not linking crt0.c or pre_crt0.c,
1692 * data_start isn't defined. We take the address of environ, which
1693 * is known to live at or near the start of the system crt0.c, and
1694 * we don't sweat the handful of bytes that might lose.
1696 extern char **environ
;
1698 return ((char *) &environ
);
1700 extern int data_start
;
1701 return ((char *) &data_start
);
1702 #endif /* ORDINARY_LINK */
1703 #endif /* DATA_START */
1705 #endif /* start_of_data */
1706 #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */
1708 /* init_system_name sets up the string for the Lisp function
1709 system-name to return. */
1711 extern Lisp_Object Vsystem_name
;
1714 #include <sys/socket.h>
1716 #endif /* HAVE_SOCKETS */
1719 #ifndef HAVE_H_ERRNO
1722 #endif /* TRY_AGAIN */
1727 #ifndef HAVE_GETHOSTNAME
1730 Vsystem_name
= build_string (uts
.nodename
);
1731 #else /* HAVE_GETHOSTNAME */
1732 unsigned int hostname_size
= 256;
1733 char *hostname
= (char *) alloca (hostname_size
);
1735 /* Try to get the host name; if the buffer is too short, try
1736 again. Apparently, the only indication gethostname gives of
1737 whether the buffer was large enough is the presence or absence
1738 of a '\0' in the string. Eech. */
1741 gethostname (hostname
, hostname_size
- 1);
1742 hostname
[hostname_size
- 1] = '\0';
1744 /* Was the buffer large enough for the '\0'? */
1745 if (strlen (hostname
) < hostname_size
- 1)
1748 hostname_size
<<= 1;
1749 hostname
= (char *) alloca (hostname_size
);
1752 /* Turn the hostname into the official, fully-qualified hostname.
1753 Don't do this if we're going to dump; this can confuse system
1754 libraries on some machines and make the dumped emacs core dump. */
1757 #endif /* not CANNOT_DUMP */
1758 if (! index (hostname
, '.'))
1761 #ifdef HAVE_GETADDRINFO
1762 struct addrinfo
*res
;
1763 struct addrinfo hints
;
1766 memset (&hints
, 0, sizeof(hints
));
1767 hints
.ai_socktype
= SOCK_STREAM
;
1768 hints
.ai_flags
= AI_CANONNAME
;
1770 for (count
= 0;; count
++)
1772 if ((ret
= getaddrinfo (hostname
, NULL
, &hints
, &res
)) == 0
1773 || ret
!= EAI_AGAIN
)
1778 Fsleep_for (make_number (1), Qnil
);
1783 struct addrinfo
*it
= res
;
1786 char *fqdn
= it
->ai_canonname
;
1787 if (fqdn
&& index (fqdn
, '.')
1788 && strcmp (fqdn
, "localhost.localdomain") != 0)
1794 hostname
= alloca (strlen (it
->ai_canonname
) + 1);
1795 strcpy (hostname
, it
->ai_canonname
);
1799 #else /* !HAVE_GETADDRINFO */
1801 for (count
= 0;; count
++)
1807 hp
= gethostbyname (hostname
);
1809 if (! (hp
== 0 && h_errno
== TRY_AGAIN
))
1816 Fsleep_for (make_number (1), Qnil
);
1821 char *fqdn
= (char *) hp
->h_name
;
1823 if (!index (fqdn
, '.'))
1825 /* We still don't have a fully qualified domain name.
1826 Try to find one in the list of alternate names */
1827 char **alias
= hp
->h_aliases
;
1829 && (!index (*alias
, '.')
1830 || !strcmp (*alias
, "localhost.localdomain")))
1837 #endif /* !HAVE_GETADDRINFO */
1839 #endif /* HAVE_SOCKETS */
1840 Vsystem_name
= build_string (hostname
);
1841 #endif /* HAVE_GETHOSTNAME */
1844 for (p
= SDATA (Vsystem_name
); *p
; p
++)
1845 if (*p
== ' ' || *p
== '\t')
1851 #if !defined (HAVE_SELECT)
1853 #include "sysselect.h"
1856 #if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT)
1857 /* Cause explanatory error message at compile time,
1858 since the select emulation is not good enough for X. */
1859 int *x
= &x_windows_lose_if_no_select_system_call
;
1862 /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs
1863 * Only checks read descriptors.
1865 /* How long to wait between checking fds in select */
1866 #define SELECT_PAUSE 1
1869 /* For longjmp'ing back to read_input_waiting. */
1871 jmp_buf read_alarm_throw
;
1873 /* Nonzero if the alarm signal should throw back to read_input_waiting.
1874 The read_socket_hook function sets this to 1 while it is waiting. */
1876 int read_alarm_should_throw
;
1882 signal (SIGALRM
, SIG_IGN
);
1883 SIGNAL_THREAD_CHECK (SIGALRM
);
1884 if (read_alarm_should_throw
)
1885 longjmp (read_alarm_throw
, 1);
1889 /* Only rfds are checked. */
1891 sys_select (nfds
, rfds
, wfds
, efds
, timeout
)
1893 SELECT_TYPE
*rfds
, *wfds
, *efds
;
1894 EMACS_TIME
*timeout
;
1896 /* XXX This needs to be updated for multi-tty support. Is there
1897 anybody who needs to emulate select these days? */
1902 extern int proc_buffered_char
[];
1903 #ifndef subprocesses
1904 int process_tick
= 0, update_tick
= 0;
1906 extern int process_tick
, update_tick
;
1910 #if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS)
1911 /* If we're using X, then the native select will work; we only need the
1912 emulation for non-X usage. */
1913 if (!NILP (Vinitial_window_system
))
1914 return select (nfds
, rfds
, wfds
, efds
, timeout
);
1916 timeoutval
= timeout
? EMACS_SECS (*timeout
) : 100000;
1917 local_timeout
= &timeoutval
;
1929 /* If we are looking only for the terminal, with no timeout,
1930 just read it and wait -- that's more efficient. */
1931 if (*local_timeout
== 100000 && process_tick
== update_tick
1932 && FD_ISSET (0, &orfds
))
1935 for (fd
= 1; fd
< nfds
; ++fd
)
1936 if (FD_ISSET (fd
, &orfds
))
1938 if (! detect_input_pending ())
1939 read_input_waiting ();
1945 /* Once a second, till the timer expires, check all the flagged read
1946 * descriptors to see if any input is available. If there is some then
1947 * set the corresponding bit in the return copy of rfds.
1951 register int to_check
, fd
;
1955 for (to_check
= nfds
, fd
= 0; --to_check
>= 0; fd
++)
1957 if (FD_ISSET (fd
, &orfds
))
1959 int avail
= 0, status
= 0;
1962 avail
= detect_input_pending (); /* Special keyboard handler */
1966 status
= ioctl (fd
, FIONREAD
, &avail
);
1967 #else /* no FIONREAD */
1968 /* Hoping it will return -1 if nothing available
1969 or 0 if all 0 chars requested are read. */
1970 if (proc_buffered_char
[fd
] >= 0)
1974 avail
= read (fd
, &buf
, 1);
1976 proc_buffered_char
[fd
] = buf
;
1978 #endif /* no FIONREAD */
1980 if (status
>= 0 && avail
> 0)
1988 if (*local_timeout
== 0 || ravail
!= 0 || process_tick
!= update_tick
)
1991 turn_on_atimers (0);
1992 signal (SIGALRM
, select_alarm
);
1994 alarm (SELECT_PAUSE
);
1996 /* Wait for a SIGALRM (or maybe a SIGTINT) */
1997 while (select_alarmed
== 0 && *local_timeout
!= 0
1998 && process_tick
== update_tick
)
2000 /* If we are interested in terminal input,
2001 wait by reading the terminal.
2002 That makes instant wakeup for terminal input at least. */
2003 if (FD_ISSET (0, &orfds
))
2005 read_input_waiting ();
2006 if (detect_input_pending ())
2012 (*local_timeout
) -= SELECT_PAUSE
;
2014 /* Reset the old alarm if there was one. */
2015 turn_on_atimers (1);
2017 if (*local_timeout
== 0) /* Stop on timer being cleared */
2022 #endif /* not WINDOWSNT */
2024 /* Read keyboard input into the standard buffer,
2025 waiting for at least one character. */
2028 read_input_waiting ()
2030 /* XXX This needs to be updated for multi-tty support. Is there
2031 anybody who needs to emulate select these days? */
2033 extern int quit_char
;
2035 if (read_socket_hook
)
2037 struct input_event hold_quit
;
2039 EVENT_INIT (hold_quit
);
2040 hold_quit
.kind
= NO_EVENT
;
2042 read_alarm_should_throw
= 0;
2043 if (! setjmp (read_alarm_throw
))
2044 nread
= (*read_socket_hook
) (0, 1, &hold_quit
);
2048 if (hold_quit
.kind
!= NO_EVENT
)
2049 kbd_buffer_store_event (&hold_quit
);
2053 struct input_event e
;
2055 nread
= read (fileno (stdin
), buf
, 1);
2058 /* Scan the chars for C-g and store them in kbd_buffer. */
2059 e
.kind
= ASCII_KEYSTROKE_EVENT
;
2060 e
.frame_or_window
= selected_frame
;
2062 for (i
= 0; i
< nread
; i
++)
2064 /* Convert chars > 0177 to meta events if desired.
2065 We do this under the same conditions that read_avail_input does. */
2066 if (read_socket_hook
== 0)
2068 /* If the user says she has a meta key, then believe her. */
2069 if (meta_key
== 1 && (buf
[i
] & 0x80))
2070 e
.modifiers
= meta_modifier
;
2075 XSETINT (e
.code
, buf
[i
]);
2076 kbd_buffer_store_event (&e
);
2077 /* Don't look at input that follows a C-g too closely.
2078 This reduces lossage due to autorepeat on C-g. */
2079 if (buf
[i
] == quit_char
)
2085 #if !defined (HAVE_SELECT)
2086 #define select sys_select
2089 #endif /* not HAVE_SELECT */
2090 #endif /* not MSDOS */
2092 /* POSIX signals support - DJB */
2093 /* Anyone with POSIX signals should have ANSI C declarations */
2095 #ifdef POSIX_SIGNALS
2097 sigset_t empty_mask
, full_mask
;
2100 sys_signal (int signal_number
, signal_handler_t action
)
2102 struct sigaction new_action
, old_action
;
2103 sigemptyset (&new_action
.sa_mask
);
2104 new_action
.sa_handler
= action
;
2105 new_action
.sa_flags
= 0;
2106 #if defined (SA_RESTART)
2107 /* Emacs mostly works better with restartable system services. If this
2108 flag exists, we probably want to turn it on here.
2109 However, on some systems this resets the timeout of `select'
2110 which means that `select' never finishes if it keeps getting signals.
2111 BROKEN_SA_RESTART is defined on those systems. */
2112 /* It's not clear why the comment above says "mostly works better". --Stef
2113 When SYNC_INPUT is set, we don't want SA_RESTART because we need to poll
2114 for pending input so we need long-running syscalls to be interrupted
2115 after a signal that sets the interrupt_input_pending flag. */
2116 /* Non-interactive keyboard input goes through stdio, where we always
2117 want restartable system calls. */
2118 # if defined (BROKEN_SA_RESTART) || defined(SYNC_INPUT)
2121 new_action
.sa_flags
= SA_RESTART
;
2123 sigaction (signal_number
, &new_action
, &old_action
);
2124 return (old_action
.sa_handler
);
2128 /* If we're compiling with GCC, we don't need this function, since it
2129 can be written as a macro. */
2131 sys_sigmask (int sig
)
2134 sigemptyset (&mask
);
2135 sigaddset (&mask
, sig
);
2140 /* I'd like to have these guys return pointers to the mask storage in here,
2141 but there'd be trouble if the code was saving multiple masks. I'll be
2142 safe and pass the structure. It normally won't be more than 2 bytes
2146 sys_sigblock (sigset_t new_mask
)
2149 sigprocmask (SIG_BLOCK
, &new_mask
, &old_mask
);
2154 sys_sigunblock (sigset_t new_mask
)
2157 sigprocmask (SIG_UNBLOCK
, &new_mask
, &old_mask
);
2162 sys_sigsetmask (sigset_t new_mask
)
2165 sigprocmask (SIG_SETMASK
, &new_mask
, &old_mask
);
2169 #endif /* POSIX_SIGNALS */
2171 #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST
2172 static char *my_sys_siglist
[NSIG
];
2176 # define sys_siglist my_sys_siglist
2182 #ifdef POSIX_SIGNALS
2183 sigemptyset (&empty_mask
);
2184 sigfillset (&full_mask
);
2187 #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST
2191 sys_siglist
[SIGABRT
] = "Aborted";
2194 sys_siglist
[SIGAIO
] = "LAN I/O interrupt";
2197 sys_siglist
[SIGALRM
] = "Alarm clock";
2200 sys_siglist
[SIGBUS
] = "Bus error";
2203 sys_siglist
[SIGCLD
] = "Child status changed";
2206 sys_siglist
[SIGCHLD
] = "Child status changed";
2209 sys_siglist
[SIGCONT
] = "Continued";
2212 sys_siglist
[SIGDANGER
] = "Swap space dangerously low";
2215 sys_siglist
[SIGDGNOTIFY
] = "Notification message in queue";
2218 sys_siglist
[SIGEMT
] = "Emulation trap";
2221 sys_siglist
[SIGFPE
] = "Arithmetic exception";
2224 sys_siglist
[SIGFREEZE
] = "SIGFREEZE";
2227 sys_siglist
[SIGGRANT
] = "Monitor mode granted";
2230 sys_siglist
[SIGHUP
] = "Hangup";
2233 sys_siglist
[SIGILL
] = "Illegal instruction";
2236 sys_siglist
[SIGINT
] = "Interrupt";
2239 sys_siglist
[SIGIO
] = "I/O possible";
2242 sys_siglist
[SIGIOINT
] = "I/O intervention required";
2245 sys_siglist
[SIGIOT
] = "IOT trap";
2248 sys_siglist
[SIGKILL
] = "Killed";
2251 sys_siglist
[SIGLOST
] = "Resource lost";
2254 sys_siglist
[SIGLWP
] = "SIGLWP";
2257 sys_siglist
[SIGMSG
] = "Monitor mode data available";
2260 sys_siglist
[SIGWIND
] = "SIGPHONE";
2263 sys_siglist
[SIGPIPE
] = "Broken pipe";
2266 sys_siglist
[SIGPOLL
] = "Pollable event occurred";
2269 sys_siglist
[SIGPROF
] = "Profiling timer expired";
2272 sys_siglist
[SIGPTY
] = "PTY I/O interrupt";
2275 sys_siglist
[SIGPWR
] = "Power-fail restart";
2278 sys_siglist
[SIGQUIT
] = "Quit";
2281 sys_siglist
[SIGRETRACT
] = "Need to relinguish monitor mode";
2284 sys_siglist
[SIGSAK
] = "Secure attention";
2287 sys_siglist
[SIGSEGV
] = "Segmentation violation";
2290 sys_siglist
[SIGSOUND
] = "Sound completed";
2293 sys_siglist
[SIGSTOP
] = "Stopped (signal)";
2296 sys_siglist
[SIGSTP
] = "Stopped (user)";
2299 sys_siglist
[SIGSYS
] = "Bad argument to system call";
2302 sys_siglist
[SIGTERM
] = "Terminated";
2305 sys_siglist
[SIGTHAW
] = "SIGTHAW";
2308 sys_siglist
[SIGTRAP
] = "Trace/breakpoint trap";
2311 sys_siglist
[SIGTSTP
] = "Stopped (user)";
2314 sys_siglist
[SIGTTIN
] = "Stopped (tty input)";
2317 sys_siglist
[SIGTTOU
] = "Stopped (tty output)";
2320 sys_siglist
[SIGURG
] = "Urgent I/O condition";
2323 sys_siglist
[SIGUSR1
] = "User defined signal 1";
2326 sys_siglist
[SIGUSR2
] = "User defined signal 2";
2329 sys_siglist
[SIGVTALRM
] = "Virtual timer expired";
2332 sys_siglist
[SIGWAITING
] = "Process's LWPs are blocked";
2335 sys_siglist
[SIGWINCH
] = "Window size changed";
2338 sys_siglist
[SIGWIND
] = "SIGWIND";
2341 sys_siglist
[SIGXCPU
] = "CPU time limit exceeded";
2344 sys_siglist
[SIGXFSZ
] = "File size limit exceeded";
2347 #endif /* !defined HAVE_STRSIGNAL && !defined HAVE_DECL_SYS_SIGLIST */
2356 /* Figure out how many bits the system's random number generator uses.
2357 `random' and `lrand48' are assumed to return 31 usable bits.
2358 BSD `rand' returns a 31 bit value but the low order bits are unusable;
2359 so we'll shift it and treat it like the 15-bit USG `rand'. */
2363 # define RAND_BITS 31
2364 # else /* !HAVE_RANDOM */
2365 # ifdef HAVE_LRAND48
2366 # define RAND_BITS 31
2367 # define random lrand48
2368 # else /* !HAVE_LRAND48 */
2369 # define RAND_BITS 15
2370 # if RAND_MAX == 32767
2371 # define random rand
2372 # else /* RAND_MAX != 32767 */
2373 # if RAND_MAX == 2147483647
2374 # define random() (rand () >> 16)
2375 # else /* RAND_MAX != 2147483647 */
2377 # define random rand
2379 # define random() (rand () >> 16)
2381 # endif /* RAND_MAX != 2147483647 */
2382 # endif /* RAND_MAX != 32767 */
2383 # endif /* !HAVE_LRAND48 */
2384 # endif /* !HAVE_RANDOM */
2385 #endif /* !RAND_BITS */
2392 srandom ((unsigned int)arg
);
2394 # ifdef HAVE_LRAND48
2397 srand ((unsigned int)arg
);
2403 * Build a full Emacs-sized word out of whatever we've got.
2404 * This suffices even for a 64-bit architecture with a 15-bit rand.
2409 long val
= random ();
2410 #if VALBITS > RAND_BITS
2411 val
= (val
<< RAND_BITS
) ^ random ();
2412 #if VALBITS > 2*RAND_BITS
2413 val
= (val
<< RAND_BITS
) ^ random ();
2414 #if VALBITS > 3*RAND_BITS
2415 val
= (val
<< RAND_BITS
) ^ random ();
2416 #if VALBITS > 4*RAND_BITS
2417 val
= (val
<< RAND_BITS
) ^ random ();
2418 #endif /* need at least 5 */
2419 #endif /* need at least 4 */
2420 #endif /* need at least 3 */
2421 #endif /* need at least 2 */
2422 return val
& ((1L << VALBITS
) - 1);
2425 #ifndef HAVE_STRERROR
2431 extern char *sys_errlist
[];
2432 extern int sys_nerr
;
2434 if (errnum
>= 0 && errnum
< sys_nerr
)
2435 return sys_errlist
[errnum
];
2436 return (char *) "Unknown error";
2438 #endif /* not WINDOWSNT */
2439 #endif /* ! HAVE_STRERROR */
2442 emacs_open (path
, oflag
, mode
)
2446 register int rtnval
;
2448 while ((rtnval
= open (path
, oflag
, mode
)) == -1
2449 && (errno
== EINTR
))
2459 register int rtnval
;
2461 while ((rtnval
= close (fd
)) == -1
2462 && (errno
== EINTR
))
2465 /* If close is interrupted SunOS 4.1 may or may not have closed the
2466 file descriptor. If it did the second close will fail with
2467 errno = EBADF. That means we have succeeded. */
2468 if (rtnval
== -1 && did_retry
&& errno
== EBADF
)
2475 emacs_read (fildes
, buf
, nbyte
)
2480 register int rtnval
;
2482 while ((rtnval
= read (fildes
, buf
, nbyte
)) == -1
2483 && (errno
== EINTR
))
2489 emacs_write (fildes
, buf
, nbyte
)
2494 register int rtnval
, bytes_written
;
2500 rtnval
= write (fildes
, buf
, nbyte
);
2507 /* I originally used `QUIT' but that might causes files to
2508 be truncated if you hit C-g in the middle of it. --Stef */
2509 process_pending_signals ();
2514 return (bytes_written
? bytes_written
: -1);
2519 bytes_written
+= rtnval
;
2521 return (bytes_written
);
2526 * All of the following are for USG.
2528 * On USG systems the system calls are INTERRUPTIBLE by signals
2529 * that the user program has elected to catch. Thus the system call
2530 * must be retried in these cases. To handle this without massive
2531 * changes in the source code, we remap the standard system call names
2532 * to names for our own functions in sysdep.c that do the system call
2533 * with retries. Actually, for portability reasons, it is good
2534 * programming practice, as this example shows, to limit all actual
2535 * system calls to a single occurrence in the source. Sure, this
2536 * adds an extra level of function call overhead but it is almost
2537 * always negligible. Fred Fish, Unisoft Systems Inc.
2541 * Warning, this function may not duplicate 4.2 action properly
2542 * under error conditions.
2546 /* In 4.1, param.h fails to define this. */
2547 #define MAXPATHLEN 1024
2556 char *npath
, *spath
;
2557 extern char *getcwd ();
2559 BLOCK_INPUT
; /* getcwd uses malloc */
2560 spath
= npath
= getcwd ((char *) 0, MAXPATHLEN
);
2566 /* On Altos 3068, getcwd can return @hostname/dir, so discard
2567 up to first slash. Should be harmless on other systems. */
2568 while (*npath
&& *npath
!= '/')
2570 strcpy (pathname
, npath
);
2571 free (spath
); /* getcwd uses malloc */
2576 #endif /* HAVE_GETWD */
2579 * Emulate rename using unlink/link. Note that this is
2580 * only partially correct. Also, doesn't enforce restriction
2581 * that files be of same type (regular->regular, dir->dir, etc).
2590 if (access (from
, 0) == 0)
2593 if (link (from
, to
) == 0)
2594 if (unlink (from
) == 0)
2603 #if defined(HPUX) && !defined(HAVE_PERROR)
2605 /* HPUX curses library references perror, but as far as we know
2606 it won't be called. Anyway this definition will do for now. */
2611 #endif /* HPUX and not HAVE_PERROR */
2616 * Emulate BSD dup2. First close newd if it already exists.
2617 * Then, attempt to dup oldd. If not successful, call dup2 recursively
2618 * until we are, then close the unsuccessful ones.
2625 register int fd
, ret
;
2630 return fcntl (oldd
, F_DUPFD
, newd
);
2637 ret
= dup2 (old
,new);
2643 #endif /* not HAVE_DUP2 */
2646 * Gettimeofday. Simulate as much as possible. Only accurate
2647 * to nearest second. Emacs doesn't use tzp so ignore it for now.
2648 * Only needed when subprocesses are defined.
2652 #ifndef HAVE_GETTIMEOFDAY
2657 gettimeofday (tp
, tzp
)
2659 struct timezone
*tzp
;
2661 extern long time ();
2663 tp
->tv_sec
= time ((long *)0);
2666 tzp
->tz_minuteswest
= -1;
2672 #endif /* subprocess && !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL */
2675 * This function will go away as soon as all the stubs fixed. (fnf)
2682 printf ("%s not yet implemented\r\n", badfunc
);
2683 reset_all_sys_modes ();
2689 /* Directory routines for systems that don't have them. */
2691 #ifdef SYSV_SYSTEM_DIR
2695 #if !defined (HAVE_CLOSEDIR)
2698 closedir (DIR *dirp
/* stream from opendir */)
2702 rtnval
= emacs_close (dirp
->dd_fd
);
2704 /* Some systems (like Solaris) allocate the buffer and the DIR all
2705 in one block. Why in the world are we freeing this ourselves
2707 #if ! defined (SOLARIS2)
2708 xfree ((char *) dirp
->dd_buf
); /* directory block defined in <dirent.h> */
2710 xfree ((char *) dirp
);
2714 #endif /* not HAVE_CLOSEDIR */
2715 #endif /* SYSV_SYSTEM_DIR */
2719 set_file_times (filename
, atime
, mtime
)
2720 const char *filename
;
2721 EMACS_TIME atime
, mtime
;
2724 struct timeval tv
[2];
2727 return utimes (filename
, tv
);
2728 #else /* not HAVE_UTIMES */
2730 utb
.actime
= EMACS_SECS (atime
);
2731 utb
.modtime
= EMACS_SECS (mtime
);
2732 return utime (filename
, &utb
);
2733 #endif /* not HAVE_UTIMES */
2736 /* mkdir and rmdir functions, for systems which don't have them. */
2740 * Written by Robert Rother, Mariah Corporation, August 1985.
2742 * If you want it, it's yours. All I ask in return is that if you
2743 * figure out how to do this in a Bourne Shell script you send me
2745 * sdcsvax!rmr or rmr@uscd
2747 * Severely hacked over by John Gilmore to make a 4.2BSD compatible
2748 * subroutine. 11Mar86; hoptoad!gnu
2750 * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,
2751 * subroutine didn't return EEXIST. It does now.
2758 mkdir (dpath
, dmode
)
2762 int cpid
, status
, fd
;
2763 struct stat statbuf
;
2765 if (stat (dpath
, &statbuf
) == 0)
2767 errno
= EEXIST
; /* Stat worked, so it already exists */
2771 /* If stat fails for a reason other than non-existence, return error */
2772 if (errno
!= ENOENT
)
2775 synch_process_alive
= 1;
2776 switch (cpid
= fork ())
2779 case -1: /* Error in fork */
2780 return (-1); /* Errno is set already */
2782 case 0: /* Child process */
2784 * Cheap hack to set mode of new directory. Since this
2785 * child process is going away anyway, we zap its umask.
2786 * FIXME, this won't suffice to set SUID, SGID, etc. on this
2787 * directory. Does anybody care?
2789 status
= umask (0); /* Get current umask */
2790 status
= umask (status
| (0777 & ~dmode
)); /* Set for mkdir */
2791 fd
= emacs_open ("/dev/null", O_RDWR
, 0);
2798 execl ("/bin/mkdir", "mkdir", dpath
, (char *) 0);
2799 _exit (-1); /* Can't exec /bin/mkdir */
2801 default: /* Parent process */
2802 wait_for_termination (cpid
);
2805 if (synch_process_death
!= 0 || synch_process_retcode
!= 0
2806 || synch_process_termsig
!= 0)
2808 errno
= EIO
; /* We don't know why, but */
2809 return -1; /* /bin/mkdir failed */
2814 #endif /* not HAVE_MKDIR */
2821 int cpid
, status
, fd
;
2822 struct stat statbuf
;
2824 if (stat (dpath
, &statbuf
) != 0)
2826 /* Stat just set errno. We don't have to */
2830 synch_process_alive
= 1;
2831 switch (cpid
= fork ())
2834 case -1: /* Error in fork */
2835 return (-1); /* Errno is set already */
2837 case 0: /* Child process */
2838 fd
= emacs_open ("/dev/null", O_RDWR
, 0);
2845 execl ("/bin/rmdir", "rmdir", dpath
, (char *) 0);
2846 _exit (-1); /* Can't exec /bin/rmdir */
2848 default: /* Parent process */
2849 wait_for_termination (cpid
);
2852 if (synch_process_death
!= 0 || synch_process_retcode
!= 0
2853 || synch_process_termsig
!= 0)
2855 errno
= EIO
; /* We don't know why, but */
2856 return -1; /* /bin/rmdir failed */
2861 #endif /* !HAVE_RMDIR */
2871 register int length
;
2873 while (length
-- > 0)
2877 #endif /* no bzero */
2878 #endif /* BSTRING */
2880 #if (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY)
2883 /* Saying `void' requires a declaration, above, where bcopy is used
2884 and that declaration causes pain for systems where bcopy is a macro. */
2885 bcopy (b1
, b2
, length
)
2888 register int length
;
2890 while (length
-- > 0)
2893 #endif /* (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */
2898 bcmp (b1
, b2
, length
) /* This could be a macro! */
2901 register int length
;
2903 while (length
-- > 0)
2909 #endif /* no bcmp */
2910 #endif /* not BSTRING */
2912 #ifndef HAVE_STRSIGNAL
2919 if (0 <= code
&& code
< NSIG
)
2921 /* Cast to suppress warning if the table has const char *. */
2922 signame
= (char *) sys_siglist
[code
];
2927 #endif /* HAVE_STRSIGNAL */
2930 /* For make-serial-process */
2931 int serial_open (char *port
)
2935 fd
= emacs_open ((char*) port
,
2948 error ("Could not open %s: %s",
2949 port
, emacs_strerror (errno
));
2952 ioctl (fd
, TIOCEXCL
, (char *) 0);
2957 #endif /* TERMIOS */
2961 #if !defined (HAVE_CFMAKERAW)
2962 /* Workaround for targets which are missing cfmakeraw. */
2963 /* Pasted from man page. */
2964 static void cfmakeraw (struct termios
*termios_p
)
2966 termios_p
->c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
2967 termios_p
->c_oflag
&= ~OPOST
;
2968 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
2969 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
2970 termios_p
->c_cflag
|= CS8
;
2972 #endif /* !defined (HAVE_CFMAKERAW */
2974 #if !defined (HAVE_CFSETSPEED)
2975 /* Workaround for targets which are missing cfsetspeed. */
2976 static int cfsetspeed (struct termios
*termios_p
, speed_t vitesse
)
2978 return (cfsetispeed (termios_p
, vitesse
)
2979 + cfsetospeed (termios_p
, vitesse
));
2983 /* For serial-process-configure */
2985 serial_configure (struct Lisp_Process
*p
,
2986 Lisp_Object contact
)
2988 Lisp_Object childp2
= Qnil
;
2989 Lisp_Object tem
= Qnil
;
2990 struct termios attr
;
2992 char summary
[4] = "???"; /* This usually becomes "8N1". */
2994 childp2
= Fcopy_sequence (p
->childp
);
2996 /* Read port attributes and prepare default configuration. */
2997 err
= tcgetattr (p
->outfd
, &attr
);
2999 error ("tcgetattr() failed: %s", emacs_strerror (errno
));
3001 #if defined (CLOCAL)
3002 attr
.c_cflag
|= CLOCAL
;
3005 attr
.c_cflag
|= CREAD
;
3008 /* Configure speed. */
3009 if (!NILP (Fplist_member (contact
, QCspeed
)))
3010 tem
= Fplist_get (contact
, QCspeed
);
3012 tem
= Fplist_get (p
->childp
, QCspeed
);
3014 err
= cfsetspeed (&attr
, XINT (tem
));
3016 error ("cfsetspeed(%d) failed: %s", XINT (tem
), emacs_strerror (errno
));
3017 childp2
= Fplist_put (childp2
, QCspeed
, tem
);
3019 /* Configure bytesize. */
3020 if (!NILP (Fplist_member (contact
, QCbytesize
)))
3021 tem
= Fplist_get (contact
, QCbytesize
);
3023 tem
= Fplist_get (p
->childp
, QCbytesize
);
3025 tem
= make_number (8);
3027 if (XINT (tem
) != 7 && XINT (tem
) != 8)
3028 error (":bytesize must be nil (8), 7, or 8");
3029 summary
[0] = XINT(tem
) + '0';
3030 #if defined (CSIZE) && defined (CS7) && defined (CS8)
3031 attr
.c_cflag
&= ~CSIZE
;
3032 attr
.c_cflag
|= ((XINT (tem
) == 7) ? CS7
: CS8
);
3034 /* Don't error on bytesize 8, which should be set by cfmakeraw. */
3035 if (XINT (tem
) != 8)
3036 error ("Bytesize cannot be changed");
3038 childp2
= Fplist_put (childp2
, QCbytesize
, tem
);
3040 /* Configure parity. */
3041 if (!NILP (Fplist_member (contact
, QCparity
)))
3042 tem
= Fplist_get (contact
, QCparity
);
3044 tem
= Fplist_get (p
->childp
, QCparity
);
3045 if (!NILP (tem
) && !EQ (tem
, Qeven
) && !EQ (tem
, Qodd
))
3046 error (":parity must be nil (no parity), `even', or `odd'");
3047 #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK)
3048 attr
.c_cflag
&= ~(PARENB
| PARODD
);
3049 attr
.c_iflag
&= ~(IGNPAR
| INPCK
);
3054 else if (EQ (tem
, Qeven
))
3057 attr
.c_cflag
|= PARENB
;
3058 attr
.c_iflag
|= (IGNPAR
| INPCK
);
3060 else if (EQ (tem
, Qodd
))
3063 attr
.c_cflag
|= (PARENB
| PARODD
);
3064 attr
.c_iflag
|= (IGNPAR
| INPCK
);
3067 /* Don't error on no parity, which should be set by cfmakeraw. */
3069 error ("Parity cannot be configured");
3071 childp2
= Fplist_put (childp2
, QCparity
, tem
);
3073 /* Configure stopbits. */
3074 if (!NILP (Fplist_member (contact
, QCstopbits
)))
3075 tem
= Fplist_get (contact
, QCstopbits
);
3077 tem
= Fplist_get (p
->childp
, QCstopbits
);
3079 tem
= make_number (1);
3081 if (XINT (tem
) != 1 && XINT (tem
) != 2)
3082 error (":stopbits must be nil (1 stopbit), 1, or 2");
3083 summary
[2] = XINT (tem
) + '0';
3084 #if defined (CSTOPB)
3085 attr
.c_cflag
&= ~CSTOPB
;
3086 if (XINT (tem
) == 2)
3087 attr
.c_cflag
|= CSTOPB
;
3089 /* Don't error on 1 stopbit, which should be set by cfmakeraw. */
3090 if (XINT (tem
) != 1)
3091 error ("Stopbits cannot be configured");
3093 childp2
= Fplist_put (childp2
, QCstopbits
, tem
);
3095 /* Configure flowcontrol. */
3096 if (!NILP (Fplist_member (contact
, QCflowcontrol
)))
3097 tem
= Fplist_get (contact
, QCflowcontrol
);
3099 tem
= Fplist_get (p
->childp
, QCflowcontrol
);
3100 if (!NILP (tem
) && !EQ (tem
, Qhw
) && !EQ (tem
, Qsw
))
3101 error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
3102 #if defined (CRTSCTS)
3103 attr
.c_cflag
&= ~CRTSCTS
;
3105 #if defined (CNEW_RTSCTS)
3106 attr
.c_cflag
&= ~CNEW_RTSCTS
;
3108 #if defined (IXON) && defined (IXOFF)
3109 attr
.c_iflag
&= ~(IXON
| IXOFF
);
3113 /* Already configured. */
3115 else if (EQ (tem
, Qhw
))
3117 #if defined (CRTSCTS)
3118 attr
.c_cflag
|= CRTSCTS
;
3119 #elif defined (CNEW_RTSCTS)
3120 attr
.c_cflag
|= CNEW_RTSCTS
;
3122 error ("Hardware flowcontrol (RTS/CTS) not supported");
3125 else if (EQ (tem
, Qsw
))
3127 #if defined (IXON) && defined (IXOFF)
3128 attr
.c_iflag
|= (IXON
| IXOFF
);
3130 error ("Software flowcontrol (XON/XOFF) not supported");
3133 childp2
= Fplist_put (childp2
, QCflowcontrol
, tem
);
3135 /* Activate configuration. */
3136 err
= tcsetattr (p
->outfd
, TCSANOW
, &attr
);
3138 error ("tcsetattr() failed: %s", emacs_strerror (errno
));
3140 childp2
= Fplist_put (childp2
, QCsummary
, build_string (summary
));
3141 p
->childp
= childp2
;
3144 #endif /* TERMIOS */
3146 /* System depended enumeration of and access to system processes a-la ps(1). */
3150 /* Process enumeration and access via /proc. */
3153 list_system_processes ()
3155 Lisp_Object procdir
, match
, proclist
, next
;
3156 struct gcpro gcpro1
, gcpro2
;
3157 register Lisp_Object tail
;
3159 GCPRO2 (procdir
, match
);
3160 /* For every process on the system, there's a directory in the
3161 "/proc" pseudo-directory whose name is the numeric ID of that
3163 procdir
= build_string ("/proc");
3164 match
= build_string ("[0-9]+");
3165 proclist
= directory_files_internal (procdir
, Qnil
, match
, Qt
, 0, Qnil
);
3167 /* `proclist' gives process IDs as strings. Destructively convert
3168 each string into a number. */
3169 for (tail
= proclist
; CONSP (tail
); tail
= next
)
3172 XSETCAR (tail
, Fstring_to_number (XCAR (tail
), Qnil
));
3176 /* directory_files_internal returns the files in reverse order; undo
3178 proclist
= Fnreverse (proclist
);
3182 /* The WINDOWSNT implementation is in w32.c.
3183 The MSDOS implementation is in dosfns.c. */
3184 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3187 list_system_processes ()
3192 #endif /* !defined (WINDOWSNT) */
3196 time_from_jiffies (unsigned long long tval
, long hz
,
3197 time_t *sec
, unsigned *usec
)
3199 unsigned long long ullsec
;
3203 tval
-= ullsec
* hz
;
3204 /* Careful: if HZ > 1 million, then integer division by it yields zero. */
3206 *usec
= tval
* 1000000 / hz
;
3208 *usec
= tval
/ (hz
/ 1000000);
3212 ltime_from_jiffies (unsigned long long tval
, long hz
)
3217 time_from_jiffies (tval
, hz
, &sec
, &usec
);
3219 return list3 (make_number ((sec
>> 16) & 0xffff),
3220 make_number (sec
& 0xffff),
3221 make_number (usec
));
3225 get_up_time (time_t *sec
, unsigned *usec
)
3232 fup
= fopen ("/proc/uptime", "r");
3236 double uptime
, idletime
;
3238 /* The numbers in /proc/uptime use C-locale decimal point, but
3239 we already set ourselves to the C locale (see `fixup_locale'
3241 if (2 <= fscanf (fup
, "%lf %lf", &uptime
, &idletime
))
3244 *usec
= (uptime
- *sec
) * 1000000;
3251 #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff)
3252 #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12))
3255 procfs_ttyname (int rdev
)
3258 char name
[PATH_MAX
];
3261 fdev
= fopen ("/proc/tty/drivers", "r");
3266 unsigned long minor_beg
, minor_end
;
3267 char minor
[25]; /* 2 32-bit numbers + dash */
3270 while (!feof (fdev
) && !ferror (fdev
))
3272 if (3 <= fscanf (fdev
, "%*s %s %u %s %*s\n", name
, &major
, minor
)
3273 && major
== MAJOR (rdev
))
3275 minor_beg
= strtoul (minor
, &endp
, 0);
3277 minor_end
= minor_beg
;
3278 else if (*endp
== '-')
3279 minor_end
= strtoul (endp
+ 1, &endp
, 0);
3283 if (MINOR (rdev
) >= minor_beg
&& MINOR (rdev
) <= minor_end
)
3285 sprintf (name
+ strlen (name
), "%u", MINOR (rdev
));
3293 return build_string (name
);
3296 static unsigned long
3297 procfs_get_total_memory (void)
3300 unsigned long retval
= 2 * 1024 * 1024; /* default: 2GB */
3303 fmem
= fopen ("/proc/meminfo", "r");
3307 unsigned long entry_value
;
3308 char entry_name
[20]; /* the longest I saw is 13+1 */
3310 while (!feof (fmem
) && !ferror (fmem
))
3312 if (2 <= fscanf (fmem
, "%s %lu kB\n", entry_name
, &entry_value
)
3313 && strcmp (entry_name
, "MemTotal:") == 0)
3315 retval
= entry_value
;
3326 system_process_attributes (Lisp_Object pid
)
3328 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3332 long clocks_per_sec
;
3334 char procbuf
[1025], *p
, *q
;
3337 const char *cmd
= NULL
;
3338 char *cmdline
= NULL
;
3339 size_t cmdsize
= 0, cmdline_size
;
3341 int proc_id
, ppid
, uid
, gid
, pgrp
, sess
, tty
, tpgid
, thcount
;
3342 unsigned long long utime
, stime
, cutime
, cstime
, start
;
3343 long priority
, nice
, rss
;
3344 unsigned long minflt
, majflt
, cminflt
, cmajflt
, vsize
;
3347 EMACS_TIME tnow
, tstart
, tboot
, telapsed
,ttotal
;
3349 Lisp_Object attrs
= Qnil
;
3350 Lisp_Object cmd_str
, decoded_cmd
, tem
;
3351 struct gcpro gcpro1
, gcpro2
;
3352 EMACS_INT uid_eint
, gid_eint
;
3354 CHECK_NUMBER_OR_FLOAT (pid
);
3355 proc_id
= FLOATP (pid
) ? XFLOAT_DATA (pid
) : XINT (pid
);
3356 sprintf (procfn
, "/proc/%u", proc_id
);
3357 if (stat (procfn
, &st
) < 0)
3360 GCPRO2 (attrs
, decoded_cmd
);
3364 /* Use of EMACS_INT stops GCC whining about limited range of data type. */
3366 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid_eint
)), attrs
);
3368 pw
= getpwuid (uid
);
3371 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3375 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid_eint
)), attrs
);
3377 gr
= getgrgid (gid
);
3380 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3382 strcpy (fn
, procfn
);
3383 procfn_end
= fn
+ strlen (fn
);
3384 strcpy (procfn_end
, "/stat");
3385 fd
= emacs_open (fn
, O_RDONLY
, 0);
3386 if (fd
>= 0 && (nread
= emacs_read (fd
, procbuf
, sizeof(procbuf
) - 1)) > 0)
3388 procbuf
[nread
] = '\0';
3391 p
= strchr (p
, '(');
3394 q
= strrchr (p
+ 1, ')');
3409 /* Command name is encoded in locale-coding-system; decode it. */
3410 cmd_str
= make_unibyte_string (cmd
, cmdsize
);
3411 decoded_cmd
= code_convert_string_norecord (cmd_str
,
3412 Vlocale_coding_system
, 0);
3413 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3417 EMACS_INT ppid_eint
, pgrp_eint
, sess_eint
, tpgid_eint
, thcount_eint
;
3419 /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */
3420 sscanf (p
, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld",
3421 &c
, &ppid
, &pgrp
, &sess
, &tty
, &tpgid
,
3422 &minflt
, &cminflt
, &majflt
, &cmajflt
,
3423 &utime
, &stime
, &cutime
, &cstime
,
3424 &priority
, &nice
, &thcount
, &start
, &vsize
, &rss
);
3429 state_str
[1] = '\0';
3430 tem
= build_string (state_str
);
3431 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3433 /* Stops GCC whining about limited range of data type. */
3438 thcount_eint
= thcount
;
3439 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (ppid_eint
)), attrs
);
3440 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pgrp_eint
)), attrs
);
3441 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (sess_eint
)), attrs
);
3442 attrs
= Fcons (Fcons (Qttname
, procfs_ttyname (tty
)), attrs
);
3443 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (tpgid_eint
)), attrs
);
3444 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (minflt
)), attrs
);
3445 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (majflt
)), attrs
);
3446 attrs
= Fcons (Fcons (Qcminflt
, make_fixnum_or_float (cminflt
)), attrs
);
3447 attrs
= Fcons (Fcons (Qcmajflt
, make_fixnum_or_float (cmajflt
)), attrs
);
3448 clocks_per_sec
= sysconf (_SC_CLK_TCK
);
3449 if (clocks_per_sec
< 0)
3450 clocks_per_sec
= 100;
3451 attrs
= Fcons (Fcons (Qutime
,
3452 ltime_from_jiffies (utime
, clocks_per_sec
)),
3454 attrs
= Fcons (Fcons (Qstime
,
3455 ltime_from_jiffies (stime
, clocks_per_sec
)),
3457 attrs
= Fcons (Fcons (Qtime
,
3458 ltime_from_jiffies (stime
+utime
, clocks_per_sec
)),
3460 attrs
= Fcons (Fcons (Qcutime
,
3461 ltime_from_jiffies (cutime
, clocks_per_sec
)),
3463 attrs
= Fcons (Fcons (Qcstime
,
3464 ltime_from_jiffies (cstime
, clocks_per_sec
)),
3466 attrs
= Fcons (Fcons (Qctime
,
3467 ltime_from_jiffies (cstime
+cutime
, clocks_per_sec
)),
3469 attrs
= Fcons (Fcons (Qpri
, make_number (priority
)), attrs
);
3470 attrs
= Fcons (Fcons (Qnice
, make_number (nice
)), attrs
);
3471 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (thcount_eint
)), attrs
);
3472 EMACS_GET_TIME (tnow
);
3473 get_up_time (&sec
, &usec
);
3474 EMACS_SET_SECS (telapsed
, sec
);
3475 EMACS_SET_USECS (telapsed
, usec
);
3476 EMACS_SUB_TIME (tboot
, tnow
, telapsed
);
3477 time_from_jiffies (start
, clocks_per_sec
, &sec
, &usec
);
3478 EMACS_SET_SECS (tstart
, sec
);
3479 EMACS_SET_USECS (tstart
, usec
);
3480 EMACS_ADD_TIME (tstart
, tboot
, tstart
);
3481 attrs
= Fcons (Fcons (Qstart
,
3483 ((EMACS_SECS (tstart
) >> 16) & 0xffff),
3485 (EMACS_SECS (tstart
) & 0xffff),
3487 (EMACS_USECS (tstart
)))),
3489 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (vsize
/1024)), attrs
);
3490 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (4*rss
)), attrs
);
3491 EMACS_SUB_TIME (telapsed
, tnow
, tstart
);
3492 attrs
= Fcons (Fcons (Qetime
,
3494 ((EMACS_SECS (telapsed
) >> 16) & 0xffff),
3496 (EMACS_SECS (telapsed
) & 0xffff),
3498 (EMACS_USECS (telapsed
)))),
3500 time_from_jiffies (utime
+ stime
, clocks_per_sec
, &sec
, &usec
);
3501 pcpu
= (sec
+ usec
/ 1000000.0) / (EMACS_SECS (telapsed
) + EMACS_USECS (telapsed
) / 1000000.0);
3504 attrs
= Fcons (Fcons (Qpcpu
, make_float (100 * pcpu
)), attrs
);
3505 pmem
= 4.0 * 100 * rss
/ procfs_get_total_memory ();
3508 attrs
= Fcons (Fcons (Qpmem
, make_float (pmem
)), attrs
);
3515 strcpy (procfn_end
, "/cmdline");
3516 fd
= emacs_open (fn
, O_RDONLY
, 0);
3519 for (cmdline_size
= 0; emacs_read (fd
, &c
, 1) == 1; cmdline_size
++)
3521 if (isspace (c
) || c
== '\\')
3522 cmdline_size
++; /* for later quoting, see below */
3526 cmdline
= xmalloc (cmdline_size
+ 1);
3527 lseek (fd
, 0L, SEEK_SET
);
3529 if ((nread
= read (fd
, cmdline
, cmdline_size
)) >= 0)
3530 cmdline
[nread
++] = '\0';
3533 /* Assigning zero to `nread' makes us skip the following
3534 two loops, assign zero to cmdline_size, and enter the
3535 following `if' clause that handles unknown command
3539 /* We don't want trailing null characters. */
3540 for (p
= cmdline
+ nread
- 1; p
> cmdline
&& !*p
; p
--)
3542 for (p
= cmdline
; p
< cmdline
+ nread
; p
++)
3544 /* Escape-quote whitespace and backslashes. */
3545 if (isspace (*p
) || *p
== '\\')
3547 memmove (p
+ 1, p
, nread
- (p
- cmdline
));
3551 else if (*p
== '\0')
3554 cmdline_size
= nread
;
3561 cmdsize
= strlen (cmd
);
3562 cmdline_size
= cmdsize
+ 2;
3563 cmdline
= xmalloc (cmdline_size
+ 1);
3564 strcpy (cmdline
, "[");
3565 strcat (strncat (cmdline
, cmd
, cmdsize
), "]");
3568 /* Command line is encoded in locale-coding-system; decode it. */
3569 cmd_str
= make_unibyte_string (cmdline
, cmdline_size
);
3570 decoded_cmd
= code_convert_string_norecord (cmd_str
,
3571 Vlocale_coding_system
, 0);
3573 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3580 #elif defined (SOLARIS2) && defined (HAVE_PROCFS)
3582 /* The <procfs.h> header does not like to be included if _LP64 is defined and
3583 __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */
3584 #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
3585 #define PROCFS_FILE_OFFSET_BITS_HACK 1
3586 #undef _FILE_OFFSET_BITS
3588 #define PROCFS_FILE_OFFSET_BITS_HACK 0
3593 #if PROCFS_FILE_OFFSET_BITS_HACK == 1
3594 #define _FILE_OFFSET_BITS 64
3595 #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */
3598 system_process_attributes (Lisp_Object pid
)
3600 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3605 struct psinfo pinfo
;
3608 int proc_id
, uid
, gid
;
3609 Lisp_Object attrs
= Qnil
;
3610 Lisp_Object decoded_cmd
, tem
;
3611 struct gcpro gcpro1
, gcpro2
;
3612 EMACS_INT uid_eint
, gid_eint
;
3614 CHECK_NUMBER_OR_FLOAT (pid
);
3615 proc_id
= FLOATP (pid
) ? XFLOAT_DATA (pid
) : XINT (pid
);
3616 sprintf (procfn
, "/proc/%u", proc_id
);
3617 if (stat (procfn
, &st
) < 0)
3620 GCPRO2 (attrs
, decoded_cmd
);
3624 /* Use of EMACS_INT stops GCC whining about limited range of data type. */
3626 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid_eint
)), attrs
);
3628 pw
= getpwuid (uid
);
3631 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3635 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid_eint
)), attrs
);
3637 gr
= getgrgid (gid
);
3640 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3642 strcpy (fn
, procfn
);
3643 procfn_end
= fn
+ strlen (fn
);
3644 strcpy (procfn_end
, "/psinfo");
3645 fd
= emacs_open (fn
, O_RDONLY
, 0);
3647 && (nread
= read (fd
, (char*)&pinfo
, sizeof(struct psinfo
)) > 0))
3649 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (pinfo
.pr_ppid
)), attrs
);
3650 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pinfo
.pr_pgid
)), attrs
);
3651 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (pinfo
.pr_sid
)), attrs
);
3655 state_str
[0] = pinfo
.pr_lwp
.pr_sname
;
3656 state_str
[1] = '\0';
3657 tem
= build_string (state_str
);
3658 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3661 /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t,
3662 need to get a string from it. */
3664 /* FIXME: missing: Qtpgid */
3676 Are they available? */
3678 attrs
= Fcons (Fcons (Qtime
,
3679 list3 (make_number (pinfo
.pr_time
.tv_sec
>> 16),
3680 make_number (pinfo
.pr_time
.tv_sec
& 0xffff),
3681 make_number (pinfo
.pr_time
.tv_nsec
))),
3684 attrs
= Fcons (Fcons (Qctime
,
3685 list3 (make_number (pinfo
.pr_ctime
.tv_sec
>> 16),
3686 make_number (pinfo
.pr_ctime
.tv_sec
& 0xffff),
3687 make_number (pinfo
.pr_ctime
.tv_nsec
))),
3690 attrs
= Fcons (Fcons (Qpri
, make_number (pinfo
.pr_lwp
.pr_pri
)), attrs
);
3691 attrs
= Fcons (Fcons (Qnice
, make_number (pinfo
.pr_lwp
.pr_nice
)), attrs
);
3692 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (pinfo
.pr_nlwp
)), attrs
);
3694 attrs
= Fcons (Fcons (Qstart
,
3695 list3 (make_number (pinfo
.pr_start
.tv_sec
>> 16),
3696 make_number (pinfo
.pr_start
.tv_sec
& 0xffff),
3697 make_number (pinfo
.pr_start
.tv_nsec
))),
3699 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (pinfo
.pr_size
)), attrs
);
3700 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (pinfo
.pr_rssize
)), attrs
);
3702 /* pr_pctcpu and pr_pctmem are encoded as a fixed point 16 bit number in [0 ... 1]. */
3703 attrs
= Fcons (Fcons (Qpcpu
, (pinfo
.pr_pctcpu
* 100.0) / (double)0x8000), attrs
);
3704 attrs
= Fcons (Fcons (Qpmem
, (pinfo
.pr_pctmem
* 100.0) / (double)0x8000), attrs
);
3707 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_fname
,
3708 strlen (pinfo
.pr_fname
)),
3709 Vlocale_coding_system
, 0);
3710 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3712 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_psargs
,
3713 strlen (pinfo
.pr_psargs
)),
3714 Vlocale_coding_system
, 0);
3715 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3725 /* The WINDOWSNT implementation is in w32.c.
3726 The MSDOS implementation is in dosfns.c. */
3727 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3730 system_process_attributes (Lisp_Object pid
)
3735 #endif /* !defined (WINDOWSNT) */
3738 /* arch-tag: edb43589-4e09-4544-b325-978b5b121dcf
3739 (do not change this comment) */