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
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>
95 extern unsigned start
__asm__ ("start");
105 #include <sys/file.h>
112 #include <sys/ioctl.h>
119 #include <sys/utsname.h>
123 extern int quit_char
;
125 #include "keyboard.h"
128 #include "termhooks.h"
129 #include "termchar.h"
130 #include "termopts.h"
131 #include "dispextern.h"
133 #include "cm.h" /* for reset_sys_modes */
135 /* For serial_configure and serial_open. */
136 extern Lisp_Object QCport
, QCspeed
, QCprocess
;
137 extern Lisp_Object QCbytesize
, QCstopbits
, QCparity
, Qodd
, Qeven
;
138 extern Lisp_Object QCflowcontrol
, Qhw
, Qsw
, QCsummary
;
142 /* In process.h which conflicts with the local copy. */
144 int _cdecl
_spawnlp (int, const char *, const char *, ...);
145 int _cdecl
_getpid (void);
146 extern char *getwd (char *);
149 #include "syssignal.h"
156 #ifndef HAVE_STRUCT_UTIMBUF
157 /* We want to use utime rather than utimes, but we couldn't find the
158 structure declaration. We'll use the traditional one. */
166 /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */
171 static int baud_convert
[] =
173 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200,
174 1800, 2400, 4800, 9600, 19200, 38400
180 #if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T)
182 #if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX)
190 void croak
P_ ((char *)) NO_RETURN
;
192 /* Temporary used by `sigblock' when defined in terms of signprocmask. */
194 SIGMASKTYPE sigprocmask_set
;
197 #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME)
199 /* Return the current working directory. Returns NULL on errors.
200 Any other returned value must be freed with free. This is used
201 only when get_current_dir_name is not defined on the system. */
203 get_current_dir_name ()
207 struct stat dotstat
, pwdstat
;
208 /* If PWD is accurate, use it instead of calling getwd. PWD is
209 sometimes a nicer name, and using it may avoid a fatal error if a
210 parent directory is searchable but not readable. */
211 if ((pwd
= getenv ("PWD")) != 0
212 && (IS_DIRECTORY_SEP (*pwd
) || (*pwd
&& IS_DEVICE_SEP (pwd
[1])))
213 && stat (pwd
, &pwdstat
) == 0
214 && stat (".", &dotstat
) == 0
215 && dotstat
.st_ino
== pwdstat
.st_ino
216 && dotstat
.st_dev
== pwdstat
.st_dev
218 && strlen (pwd
) < MAXPATHLEN
222 buf
= (char *) malloc (strlen (pwd
) + 1);
230 size_t buf_size
= 1024;
231 buf
= (char *) malloc (buf_size
);
236 if (getcwd (buf
, buf_size
) == buf
)
240 int tmp_errno
= errno
;
246 buf
= (char *) realloc (buf
, buf_size
);
254 /* We need MAXPATHLEN here. */
255 buf
= (char *) malloc (MAXPATHLEN
+ 1);
258 if (getwd (buf
) == NULL
)
260 int tmp_errno
= errno
;
272 /* Discard pending input on all input descriptors. */
278 struct emacs_tty buf
;
283 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
284 while (dos_keyread () != -1)
286 #else /* not MSDOS */
288 struct tty_display_info
*tty
;
289 for (tty
= tty_list
; tty
; tty
= tty
->next
)
291 if (tty
->input
) /* Is the device suspended? */
293 EMACS_GET_TTY (fileno (tty
->input
), &buf
);
294 EMACS_SET_TTY (fileno (tty
->input
), &buf
, 0);
298 #endif /* not MSDOS */
299 #endif /* not WINDOWSNT */
305 /* Arrange for character C to be read as the next input from
307 XXX What if we have multiple ttys?
313 if (! FRAME_TERMCAP_P (SELECTED_FRAME ()))
316 /* Should perhaps error if in batch mode */
318 ioctl (fileno (CURTTY()->input
), TIOCSTI
, &c
);
319 #else /* no TIOCSTI */
320 error ("Cannot stuff terminal input characters in this version of Unix");
321 #endif /* no TIOCSTI */
327 init_baud_rate (int fd
)
335 #else /* not DOS_NT */
341 emacs_ospeed
= cfgetospeed (&sg
);
342 #else /* not TERMIOS */
350 ioctl (fd
, TCGETA
, &sg
);
352 emacs_ospeed
= sg
.c_cflag
& CBAUD
;
353 #else /* neither TERMIOS nor TERMIO */
356 sg
.sg_ospeed
= B9600
;
357 if (ioctl (fd
, TIOCGETP
, &sg
) < 0)
359 emacs_ospeed
= sg
.sg_ospeed
;
360 #endif /* not HAVE_TERMIO */
361 #endif /* not HAVE_TERMIOS */
362 #endif /* not DOS_NT */
365 baud_rate
= (emacs_ospeed
< sizeof baud_convert
/ sizeof baud_convert
[0]
366 ? baud_convert
[emacs_ospeed
] : 9600);
374 set_exclusive_use (fd
)
378 ioctl (fd
, FIOCLEX
, 0);
380 /* Ok to do nothing if this feature does not exist */
385 wait_without_blocking ()
388 wait3 (0, WNOHANG
| WUNTRACED
, 0);
390 croak ("wait_without_blocking");
392 synch_process_alive
= 0;
395 #endif /* not subprocesses */
397 int wait_debugging
; /* Set nonzero to make following function work under dbx
398 (at least for bsd). */
401 wait_for_termination_signal ()
404 /* Wait for subprocess with process id `pid' to terminate and
405 make sure it will get eliminated (not remain forever as a zombie) */
408 wait_for_termination (pid
)
414 #if defined (BSD_SYSTEM) || defined (HPUX)
415 /* Note that kill returns -1 even if the process is just a zombie now.
416 But inevitably a SIGCHLD interrupt should be generated
417 and child_sig will do wait3 and make the process go away. */
418 /* There is some indication that there is a bug involved with
419 termination of subprocesses, perhaps involving a kernel bug too,
420 but no idea what it is. Just as a hunch we signal SIGCHLD to see
421 if that causes the problem to go away or get worse. */
422 sigsetmask (sigmask (SIGCHLD
));
423 if (0 > kill (pid
, 0))
425 sigsetmask (SIGEMPTYMASK
);
426 kill (getpid (), SIGCHLD
);
432 sigpause (SIGEMPTYMASK
);
433 #else /* not BSD_SYSTEM, and not HPUX version >= 6 */
434 #ifdef POSIX_SIGNALS /* would this work for GNU/Linux as well? */
435 sigblock (sigmask (SIGCHLD
));
437 if (kill (pid
, 0) == -1 && errno
== ESRCH
)
439 sigunblock (sigmask (SIGCHLD
));
443 sigsuspend (&empty_mask
);
444 #else /* not POSIX_SIGNALS */
445 #ifdef HAVE_SYSV_SIGPAUSE
447 if (0 > kill (pid
, 0))
453 #else /* not HAVE_SYSV_SIGPAUSE */
457 #else /* not WINDOWSNT */
458 if (0 > kill (pid
, 0))
460 /* Using sleep instead of pause avoids timing error.
461 If the inferior dies just before the sleep,
462 we lose just one second. */
464 #endif /* not WINDOWSNT */
465 #endif /* not HAVE_SYSV_SIGPAUSE */
466 #endif /* not POSIX_SIGNALS */
467 #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */
468 #else /* not subprocesses */
471 #else /* not __DJGPP__ > 1 */
472 if (kill (pid
, 0) < 0)
475 #endif /* not __DJGPP__ > 1*/
476 #endif /* not subprocesses */
483 * flush any pending output
484 * (may flush input as well; it does not matter the way we use it)
488 flush_pending_output (channel
)
492 /* If we try this, we get hit with SIGTTIN, because
493 the child's tty belongs to the child's pgrp. */
496 ioctl (channel
, TCFLSH
, 1);
500 /* 3rd arg should be ignored
501 but some 4.2 kernels actually want the address of an int
502 and nonzero means something different. */
503 ioctl (channel
, TIOCFLUSH
, &zero
);
509 /* Set up the terminal at the other end of a pseudo-terminal that
510 we will be controlling an inferior through.
511 It should not echo or do line-editing, since that is done
512 in Emacs. No padding needed for insertion into an Emacs buffer. */
515 child_setup_tty (out
)
521 EMACS_GET_TTY (out
, &s
);
523 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
524 s
.main
.c_oflag
|= OPOST
; /* Enable output postprocessing */
525 s
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL on output */
527 /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html
528 Some versions of GNU Hurd do not have FFDLY? */
530 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
|FFDLY
);
531 /* No output delays */
533 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
);
534 /* No output delays */
537 s
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
538 s
.main
.c_lflag
|= ISIG
; /* Enable signals */
540 s
.main
.c_iflag
&= ~IUCLC
; /* Disable downcasing on input. */
543 s
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
546 s
.main
.c_oflag
&= ~OLCUC
; /* Disable upcasing on output. */
548 s
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
549 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CSIZE
) | CS8
; /* Don't strip 8th bit */
550 s
.main
.c_lflag
|= ICANON
; /* Enable erase/kill and eof processing */
551 s
.main
.c_cc
[VEOF
] = 04; /* insure that EOF is Control-D */
552 s
.main
.c_cc
[VERASE
] = CDISABLE
; /* disable erase processing */
553 s
.main
.c_cc
[VKILL
] = CDISABLE
; /* disable kill processing */
556 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
559 #ifdef SIGNALS_VIA_CHARACTERS
560 /* the QUIT and INTR character are used in process_send_signal
561 so set them here to something useful. */
562 if (s
.main
.c_cc
[VQUIT
] == CDISABLE
)
563 s
.main
.c_cc
[VQUIT
] = '\\'&037; /* Control-\ */
564 if (s
.main
.c_cc
[VINTR
] == CDISABLE
)
565 s
.main
.c_cc
[VINTR
] = 'C'&037; /* Control-C */
566 #endif /* not SIGNALS_VIA_CHARACTERS */
569 /* AIX enhanced edit loses NULs, so disable it */
572 s
.main
.c_iflag
&= ~ASCEDIT
;
574 /* Also, PTY overloads NUL and BREAK.
575 don't ignore break, but don't signal either, so it looks like NUL. */
576 s
.main
.c_iflag
&= ~IGNBRK
;
577 s
.main
.c_iflag
&= ~BRKINT
;
578 /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here
579 unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional
580 would force it to 0377. That looks like duplicated code. */
581 s
.main
.c_cc
[VEOL
] = CDISABLE
;
582 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
585 #else /* not HAVE_TERMIO */
587 s
.main
.sg_flags
&= ~(ECHO
| CRMOD
| ANYP
| ALLDELAY
| RAW
| LCASE
589 s
.main
.sg_flags
|= LPASS8
;
590 s
.main
.sg_erase
= 0377;
591 s
.main
.sg_kill
= 0377;
592 s
.lmode
= LLITOUT
| s
.lmode
; /* Don't strip 8th bit */
594 #endif /* not HAVE_TERMIO */
596 EMACS_SET_TTY (out
, &s
, 0);
598 #endif /* not DOS_NT */
601 #endif /* subprocesses */
603 /* Record a signal code and the handler for it. */
607 SIGTYPE (*handler
) P_ ((int));
610 static void save_signal_handlers
P_ ((struct save_signal
*));
611 static void restore_signal_handlers
P_ ((struct save_signal
*));
613 /* Suspend the Emacs process; give terminal to its superior. */
618 #if defined (SIGTSTP) && !defined (MSDOS)
621 int pgrp
= EMACS_GETPGRP (0);
622 EMACS_KILLPG (pgrp
, SIGTSTP
);
625 #else /* No SIGTSTP */
626 #ifdef USG_JOBCTRL /* If you don't know what this is don't mess with it */
627 ptrace (0, 0, 0, 0); /* set for ptrace - caught by csh */
628 kill (getpid (), SIGQUIT
);
630 #else /* No SIGTSTP or USG_JOBCTRL */
632 /* On a system where suspending is not implemented,
633 instead fork a subshell and let it talk directly to the terminal
637 #endif /* no USG_JOBCTRL */
638 #endif /* no SIGTSTP */
641 /* Fork a subshell. */
646 #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
648 char oldwd
[MAXPATHLEN
+1]; /* Fixed length is safe on MSDOS. */
651 struct save_signal saved_handlers
[5];
653 unsigned char *str
= 0;
656 saved_handlers
[0].code
= SIGINT
;
657 saved_handlers
[1].code
= SIGQUIT
;
658 saved_handlers
[2].code
= SIGTERM
;
660 saved_handlers
[3].code
= SIGIO
;
661 saved_handlers
[4].code
= 0;
663 saved_handlers
[3].code
= 0;
666 /* Mentioning current_buffer->buffer would mean including buffer.h,
667 which somehow wedges the hp compiler. So instead... */
669 dir
= intern ("default-directory");
670 if (NILP (Fboundp (dir
)))
672 dir
= Fsymbol_value (dir
);
676 dir
= expand_and_dir_to_file (Funhandled_file_name_directory (dir
), Qnil
);
677 str
= (unsigned char *) alloca (SCHARS (dir
) + 2);
679 bcopy (SDATA (dir
), str
, len
);
680 if (str
[len
- 1] != '/') str
[len
++] = '/';
687 save_signal_handlers (saved_handlers
);
688 synch_process_alive
= 1;
689 #endif /* __DJGPP__ > 1 */
693 error ("Can't spawn subshell");
700 #ifdef DOS_NT /* MW, Aug 1993 */
703 sh
= (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
706 sh
= (char *) egetenv ("SHELL");
710 /* Use our buffer's default directory for the subshell. */
712 chdir ((char *) str
);
715 close_process_descs (); /* Close Emacs's pipes/ptys */
718 #ifdef SET_EMACS_PRIORITY
720 extern EMACS_INT emacs_priority
;
722 if (emacs_priority
< 0)
723 nice (-emacs_priority
);
727 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
729 char *epwd
= getenv ("PWD");
730 char old_pwd
[MAXPATHLEN
+1+4];
732 /* If PWD is set, pass it with corrected value. */
735 strcpy (old_pwd
, epwd
);
736 if (str
[len
- 1] == '/')
738 setenv ("PWD", str
, 1);
743 putenv (old_pwd
); /* restore previous value */
745 #else /* not MSDOS */
747 /* Waits for process completion */
748 pid
= _spawnlp (_P_WAIT
, sh
, sh
, NULL
);
751 write (1, "Can't execute subshell", 22);
752 #else /* not WINDOWSNT */
753 execlp (sh
, sh
, (char *) 0);
754 write (1, "Can't execute subshell", 22);
756 #endif /* not WINDOWSNT */
757 #endif /* not MSDOS */
760 /* Do this now if we did not do it before. */
761 #if !defined (MSDOS) || __DJGPP__ == 1
762 save_signal_handlers (saved_handlers
);
763 synch_process_alive
= 1;
767 wait_for_termination (pid
);
769 restore_signal_handlers (saved_handlers
);
770 synch_process_alive
= 0;
774 save_signal_handlers (saved_handlers
)
775 struct save_signal
*saved_handlers
;
777 while (saved_handlers
->code
)
779 saved_handlers
->handler
780 = (SIGTYPE (*) P_ ((int))) signal (saved_handlers
->code
, SIG_IGN
);
786 restore_signal_handlers (saved_handlers
)
787 struct save_signal
*saved_handlers
;
789 while (saved_handlers
->code
)
791 signal (saved_handlers
->code
, saved_handlers
->handler
);
797 /* If SIGIO is broken, don't do anything. */
814 unrequest_sigio (void)
821 int old_fcntl_flags
[MAXDESC
];
828 old_fcntl_flags
[fd
] = fcntl (fd
, F_GETFL
, 0) & ~FASYNC
;
829 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
] | FASYNC
);
831 interrupts_deferred
= 0;
839 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
]);
843 #ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */
844 /* XXX Uhm, FASYNC is not used anymore here. */
845 /* XXX Yeah, but you need it for SIGIO, don't you? */
854 sigunblock (sigmask (SIGWINCH
));
856 sigunblock (sigmask (SIGIO
));
858 interrupts_deferred
= 0;
862 unrequest_sigio (void)
867 #if 0 /* XXX What's wrong with blocking SIGIO under X? */
873 sigblock (sigmask (SIGWINCH
));
875 sigblock (sigmask (SIGIO
));
876 interrupts_deferred
= 1;
879 #else /* no FASYNC */
885 if (noninteractive
|| read_socket_hook
)
888 croak ("request_sigio");
894 if (noninteractive
|| read_socket_hook
)
897 croak ("unrequest_sigio");
905 /* Saving and restoring the process group of Emacs's terminal. */
909 /* The process group of which Emacs was a member when it initially
912 If Emacs was in its own process group (i.e. inherited_pgroup ==
913 getpid ()), then we know we're running under a shell with job
914 control (Emacs would never be run as part of a pipeline).
917 If Emacs was not in its own process group, then we know we're
918 running under a shell (or a caller) that doesn't know how to
919 separate itself from Emacs (like sh). Emacs must be in its own
920 process group in order to receive SIGIO correctly. In this
921 situation, we put ourselves in our own pgroup, forcibly set the
922 tty's pgroup to our pgroup, and make sure to restore and reinstate
923 the tty's pgroup just like any other terminal setting. If
924 inherited_group was not the tty's pgroup, then we'll get a
925 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
926 it goes foreground in the future, which is what should happen.
928 This variable is initialized in emacs.c. */
929 int inherited_pgroup
;
931 /* Split off the foreground process group to Emacs alone. When we are
932 in the foreground, but not started in our own process group,
933 redirect the tty device handle FD to point to our own process
934 group. We need to be in our own process group to receive SIGIO
937 narrow_foreground_group (int fd
)
941 setpgrp (0, inherited_pgroup
);
943 /* XXX inherited_pgroup should not be zero here, but GTK seems to
945 if (! inherited_pgroup
)
946 abort (); /* Should not happen. */
948 if (inherited_pgroup
!= me
)
949 EMACS_SET_TTY_PGRP (fd
, &me
); /* XXX This only works on the controlling tty. */
953 /* Set the tty to our original foreground group. */
955 widen_foreground_group (int fd
)
957 if (inherited_pgroup
!= getpid ())
958 EMACS_SET_TTY_PGRP (fd
, &inherited_pgroup
);
959 setpgrp (0, inherited_pgroup
);
962 #endif /* BSD_PGRPS */
964 /* Getting and setting emacs_tty structures. */
966 /* Set *TC to the parameters associated with the terminal FD.
967 Return zero if all's well, or -1 if we ran into an error we
968 couldn't deal with. */
970 emacs_get_tty (fd
, settings
)
972 struct emacs_tty
*settings
;
974 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
976 /* We have those nifty POSIX tcmumbleattr functions. */
977 bzero (&settings
->main
, sizeof (settings
->main
));
978 if (tcgetattr (fd
, &settings
->main
) < 0)
983 /* The SYSV-style interface? */
984 if (ioctl (fd
, TCGETA
, &settings
->main
) < 0)
989 /* I give up - I hope you have the BSD ioctls. */
990 if (ioctl (fd
, TIOCGETP
, &settings
->main
) < 0)
992 #endif /* not DOS_NT */
996 /* Suivant - Do we have to get struct ltchars data? */
998 if (ioctl (fd
, TIOCGLTC
, &settings
->ltchars
) < 0)
1002 /* How about a struct tchars and a wordful of lmode bits? */
1004 if (ioctl (fd
, TIOCGETC
, &settings
->tchars
) < 0
1005 || ioctl (fd
, TIOCLGET
, &settings
->lmode
) < 0)
1009 /* We have survived the tempest. */
1014 /* Set the parameters of the tty on FD according to the contents of
1015 *SETTINGS. If FLUSHP is non-zero, we discard input.
1016 Return 0 if all went well, and -1 if anything failed. */
1019 emacs_set_tty (fd
, settings
, flushp
)
1021 struct emacs_tty
*settings
;
1024 /* Set the primary parameters - baud rate, character size, etcetera. */
1027 /* We have those nifty POSIX tcmumbleattr functions.
1028 William J. Smith <wjs@wiis.wang.com> writes:
1029 "POSIX 1003.1 defines tcsetattr to return success if it was
1030 able to perform any of the requested actions, even if some
1031 of the requested actions could not be performed.
1032 We must read settings back to ensure tty setup properly.
1033 AIX requires this to keep tty from hanging occasionally." */
1034 /* This make sure that we don't loop indefinitely in here. */
1035 for (i
= 0 ; i
< 10 ; i
++)
1036 if (tcsetattr (fd
, flushp
? TCSAFLUSH
: TCSADRAIN
, &settings
->main
) < 0)
1047 bzero (&new, sizeof (new));
1048 /* Get the current settings, and see if they're what we asked for. */
1049 tcgetattr (fd
, &new);
1050 /* We cannot use memcmp on the whole structure here because under
1051 * aix386 the termios structure has some reserved field that may
1054 if ( new.c_iflag
== settings
->main
.c_iflag
1055 && new.c_oflag
== settings
->main
.c_oflag
1056 && new.c_cflag
== settings
->main
.c_cflag
1057 && new.c_lflag
== settings
->main
.c_lflag
1058 && memcmp (new.c_cc
, settings
->main
.c_cc
, NCCS
) == 0)
1066 /* The SYSV-style interface? */
1067 if (ioctl (fd
, flushp
? TCSETAF
: TCSETAW
, &settings
->main
) < 0)
1072 /* I give up - I hope you have the BSD ioctls. */
1073 if (ioctl (fd
, (flushp
) ? TIOCSETP
: TIOCSETN
, &settings
->main
) < 0)
1075 #endif /* not DOS_NT */
1080 /* Suivant - Do we have to get struct ltchars data? */
1082 if (ioctl (fd
, TIOCSLTC
, &settings
->ltchars
) < 0)
1086 /* How about a struct tchars and a wordful of lmode bits? */
1088 if (ioctl (fd
, TIOCSETC
, &settings
->tchars
) < 0
1089 || ioctl (fd
, TIOCLSET
, &settings
->lmode
) < 0)
1093 /* We have survived the tempest. */
1100 int old_fcntl_owner
[MAXDESC
];
1101 #endif /* F_SETOWN */
1103 /* This may also be defined in stdio,
1104 but if so, this does no harm,
1105 and using the same name avoids wasting the other one's space. */
1108 unsigned char _sobuf
[BUFSIZ
+8];
1110 char _sobuf
[BUFSIZ
];
1114 static struct ltchars new_ltchars
= {-1,-1,-1,-1,-1,-1};
1117 static struct tchars new_tchars
= {-1,-1,-1,-1,-1,-1};
1120 /* Initialize the terminal mode on all tty devices that are currently
1124 init_all_sys_modes (void)
1126 struct tty_display_info
*tty
;
1127 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1128 init_sys_modes (tty
);
1131 /* Initialize the terminal mode on the given tty device. */
1134 init_sys_modes (tty_out
)
1135 struct tty_display_info
*tty_out
;
1137 struct emacs_tty tty
;
1139 Vtty_erase_char
= Qnil
;
1144 if (!tty_out
->output
)
1145 return; /* The tty is suspended. */
1149 /* read_socket_hook is not global anymore. I think doing this
1150 unconditionally will not cause any problems. */
1151 if (! read_socket_hook
&& EQ (Vinitial_window_system
, Qnil
))
1153 narrow_foreground_group (fileno (tty_out
->input
));
1156 if (! tty_out
->old_tty
)
1157 tty_out
->old_tty
= (struct emacs_tty
*) xmalloc (sizeof (struct emacs_tty
));
1159 EMACS_GET_TTY (fileno (tty_out
->input
), tty_out
->old_tty
);
1161 tty
= *tty_out
->old_tty
;
1163 #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS)
1164 XSETINT (Vtty_erase_char
, tty
.main
.c_cc
[VERASE
]);
1166 tty
.main
.c_iflag
|= (IGNBRK
); /* Ignore break condition */
1167 tty
.main
.c_iflag
&= ~ICRNL
; /* Disable map of CR to NL on input */
1168 #ifdef INLCR /* I'm just being cautious,
1169 since I can't check how widespread INLCR is--rms. */
1170 tty
.main
.c_iflag
&= ~INLCR
; /* Disable map of NL to CR on input */
1173 tty
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
1175 tty
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
1176 tty
.main
.c_lflag
&= ~ICANON
; /* Disable erase/kill processing */
1178 tty
.main
.c_lflag
&= ~IEXTEN
; /* Disable other editing characters. */
1180 tty
.main
.c_lflag
|= ISIG
; /* Enable signals */
1181 if (tty_out
->flow_control
)
1183 tty
.main
.c_iflag
|= IXON
; /* Enable start/stop output control */
1185 tty
.main
.c_iflag
&= ~IXANY
;
1189 tty
.main
.c_iflag
&= ~IXON
; /* Disable start/stop output control */
1190 tty
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL
1192 tty
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
1194 if (tty_out
->meta_key
)
1196 tty
.main
.c_cflag
|= CS8
; /* allow 8th bit on input */
1197 tty
.main
.c_cflag
&= ~PARENB
;/* Don't check parity */
1200 if (tty_out
->input
== stdin
)
1202 tty
.main
.c_cc
[VINTR
] = quit_char
; /* C-g (usually) gives SIGINT */
1203 /* Set up C-g for both SIGQUIT and SIGINT.
1204 We don't know which we will get, but we handle both alike
1205 so which one it really gives us does not matter. */
1206 tty
.main
.c_cc
[VQUIT
] = quit_char
;
1210 /* We normally don't get interrupt or quit signals from tty
1211 devices other than our controlling terminal; therefore,
1212 we must handle C-g as normal input. Unfortunately, this
1213 means that the interrupt and quit feature must be
1214 disabled on secondary ttys, or we would not even see the
1217 Note that even though emacsclient could have special code
1218 to pass SIGINT to Emacs, we should _not_ enable
1219 interrupt/quit keys for emacsclient frames. This means
1220 that we can't break out of loops in C code from a
1221 secondary tty frame, but we can always decide what
1222 display the C-g came from, which is more important from a
1223 usability point of view. (Consider the case when two
1224 people work together using the same Emacs instance.) */
1225 tty
.main
.c_cc
[VINTR
] = CDISABLE
;
1226 tty
.main
.c_cc
[VQUIT
] = CDISABLE
;
1228 tty
.main
.c_cc
[VMIN
] = 1; /* Input should wait for at least 1 char */
1229 tty
.main
.c_cc
[VTIME
] = 0; /* no matter how long that takes. */
1231 tty
.main
.c_cc
[VSWTCH
] = CDISABLE
; /* Turn off shell layering use
1235 #if defined (__mips__) || defined (HAVE_TCATTR)
1237 tty
.main
.c_cc
[VSUSP
] = CDISABLE
; /* Turn off mips handling of C-z. */
1240 tty
.main
.c_cc
[V_DSUSP
] = CDISABLE
; /* Turn off mips handling of C-y. */
1241 #endif /* V_DSUSP */
1242 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
1243 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1246 tty
.main
.c_cc
[VLNEXT
] = CDISABLE
;
1249 tty
.main
.c_cc
[VREPRINT
] = CDISABLE
;
1250 #endif /* VREPRINT */
1252 tty
.main
.c_cc
[VWERASE
] = CDISABLE
;
1253 #endif /* VWERASE */
1255 tty
.main
.c_cc
[VDISCARD
] = CDISABLE
;
1256 #endif /* VDISCARD */
1258 if (tty_out
->flow_control
)
1261 tty
.main
.c_cc
[VSTART
] = '\021';
1264 tty
.main
.c_cc
[VSTOP
] = '\023';
1270 tty
.main
.c_cc
[VSTART
] = CDISABLE
;
1273 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1276 #endif /* mips or HAVE_TCATTR */
1280 /* AIX enhanced edit loses NULs, so disable it. */
1281 tty
.main
.c_line
= 0;
1282 tty
.main
.c_iflag
&= ~ASCEDIT
;
1284 tty
.main
.c_cc
[VSTRT
] = CDISABLE
;
1285 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1286 tty
.main
.c_cc
[VSUSP
] = CDISABLE
;
1287 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1288 #endif /* IBMR2AIX */
1289 if (tty_out
->flow_control
)
1292 tty
.main
.c_cc
[VSTART
] = '\021';
1295 tty
.main
.c_cc
[VSTOP
] = '\023';
1298 /* Also, PTY overloads NUL and BREAK.
1299 don't ignore break, but don't signal either, so it looks like NUL.
1300 This really serves a purpose only if running in an XTERM window
1301 or via TELNET or the like, but does no harm elsewhere. */
1302 tty
.main
.c_iflag
&= ~IGNBRK
;
1303 tty
.main
.c_iflag
&= ~BRKINT
;
1305 #else /* if not HAVE_TERMIO */
1307 XSETINT (Vtty_erase_char
, tty
.main
.sg_erase
);
1308 tty
.main
.sg_flags
&= ~(ECHO
| CRMOD
| XTABS
);
1310 tty
.main
.sg_flags
|= ANYP
;
1311 tty
.main
.sg_flags
|= interrupt_input
? RAW
: CBREAK
;
1312 #endif /* not DOS_NT */
1313 #endif /* not HAVE_TERMIO */
1315 /* If going to use CBREAK mode, we must request C-g to interrupt
1316 and turn off start and stop chars, etc. If not going to use
1317 CBREAK mode, do this anyway so as to turn off local flow
1318 control for user coming over network on 4.2; in this case,
1319 only t_stopc and t_startc really matter. */
1322 /* Note: if not using CBREAK mode, it makes no difference how we
1324 tty
.tchars
= new_tchars
;
1325 tty
.tchars
.t_intrc
= quit_char
;
1326 if (tty_out
->flow_control
)
1328 tty
.tchars
.t_startc
= '\021';
1329 tty
.tchars
.t_stopc
= '\023';
1332 tty
.lmode
= LDECCTQ
| LLITOUT
| LPASS8
| LNOFLSH
| tty_out
->old_tty
.lmode
;
1334 #endif /* HAVE_TCHARS */
1335 #endif /* not HAVE_TERMIO */
1338 tty
.ltchars
= new_ltchars
;
1339 #endif /* HAVE_LTCHARS */
1340 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
1341 if (!tty_out
->term_initted
)
1342 internal_terminal_init ();
1343 dos_ttraw (tty_out
);
1346 EMACS_SET_TTY (fileno (tty_out
->input
), &tty
, 0);
1348 /* This code added to insure that, if flow-control is not to be used,
1349 we have an unlocked terminal at the start. */
1352 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TCXONC
, 1);
1355 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TIOCSTART
, 0);
1358 #if defined (HAVE_TERMIOS) || defined (HPUX)
1360 if (!tty_out
->flow_control
) tcflow (fileno (tty_out
->input
), TCOON
);
1365 #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */
1366 if (interrupt_input
)
1368 old_fcntl_owner
[fileno (tty_out
->input
)] =
1369 fcntl (fileno (tty_out
->input
), F_GETOWN
, 0);
1370 fcntl (fileno (tty_out
->input
), F_SETOWN
, getpid ());
1371 init_sigio (fileno (tty_out
->input
));
1373 if (gpm_tty
== tty_out
)
1375 /* Arrange for mouse events to give us SIGIO signals. */
1376 fcntl (gpm_fd
, F_SETOWN
, getpid ());
1377 fcntl (gpm_fd
, F_SETFL
, fcntl (gpm_fd
, F_GETFL
, 0) | O_NONBLOCK
);
1378 init_sigio (gpm_fd
);
1380 #endif /* HAVE_GPM */
1382 #endif /* F_GETOWN */
1383 #endif /* F_SETFL */
1386 /* This symbol is defined on recent USG systems.
1387 Someone says without this call USG won't really buffer the file
1388 even with a call to setbuf. */
1389 setvbuf (tty_out
->output
, (char *) _sobuf
, _IOFBF
, sizeof _sobuf
);
1391 setbuf (tty_out
->output
, (char *) _sobuf
);
1394 if (tty_out
->terminal
->set_terminal_modes_hook
)
1395 tty_out
->terminal
->set_terminal_modes_hook (tty_out
->terminal
);
1397 if (!tty_out
->term_initted
)
1399 Lisp_Object tail
, frame
;
1400 FOR_EACH_FRAME (tail
, frame
)
1402 /* XXX This needs to be revised. */
1403 if (FRAME_TERMCAP_P (XFRAME (frame
))
1404 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1405 init_frame_faces (XFRAME (frame
));
1409 if (tty_out
->term_initted
&& no_redraw_on_reenter
)
1411 /* XXX This seems wrong on multi-tty. */
1412 if (display_completed
)
1413 direct_output_forward_char (0);
1417 Lisp_Object tail
, frame
;
1419 FOR_EACH_FRAME (tail
, frame
)
1421 if ((FRAME_TERMCAP_P (XFRAME (frame
))
1422 || FRAME_MSDOS_P (XFRAME (frame
)))
1423 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1424 FRAME_GARBAGED_P (XFRAME (frame
)) = 1;
1428 tty_out
->term_initted
= 1;
1431 /* Return nonzero if safe to use tabs in output.
1432 At the time this is called, init_sys_modes has not been done yet. */
1435 tabs_safe_p (int fd
)
1437 struct emacs_tty etty
;
1439 EMACS_GET_TTY (fd
, &etty
);
1440 return EMACS_TTY_TABS_OK (&etty
);
1443 /* Get terminal size from system.
1444 Store number of lines into *HEIGHTP and width into *WIDTHP.
1445 We store 0 if there's no valid information. */
1448 get_tty_size (int fd
, int *widthp
, int *heightp
)
1454 struct winsize size
;
1456 if (ioctl (fd
, TIOCGWINSZ
, &size
) == -1)
1457 *widthp
= *heightp
= 0;
1460 *widthp
= size
.ws_col
;
1461 *heightp
= size
.ws_row
;
1467 /* SunOS - style. */
1468 struct ttysize size
;
1470 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1471 *widthp
= *heightp
= 0;
1474 *widthp
= size
.ts_cols
;
1475 *heightp
= size
.ts_lines
;
1480 *widthp
= ScreenCols ();
1481 *heightp
= ScreenRows ();
1482 #else /* system doesn't know size */
1486 #endif /* not SunOS-style */
1487 #endif /* not BSD-style */
1490 /* Set the logical window size associated with descriptor FD
1491 to HEIGHT and WIDTH. This is used mainly with ptys. */
1494 set_window_size (fd
, height
, width
)
1495 int fd
, height
, width
;
1500 struct winsize size
;
1501 size
.ws_row
= height
;
1502 size
.ws_col
= width
;
1504 if (ioctl (fd
, TIOCSWINSZ
, &size
) == -1)
1505 return 0; /* error */
1512 /* SunOS - style. */
1513 struct ttysize size
;
1514 size
.ts_lines
= height
;
1515 size
.ts_cols
= width
;
1517 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1523 #endif /* not SunOS-style */
1524 #endif /* not BSD-style */
1529 /* Prepare all terminal devices for exiting Emacs. */
1532 reset_all_sys_modes (void)
1534 struct tty_display_info
*tty
;
1535 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1536 reset_sys_modes (tty
);
1539 /* Prepare the terminal for closing it; move the cursor to the
1540 bottom of the frame, turn off interrupt-driven I/O, etc. */
1543 reset_sys_modes (tty_out
)
1544 struct tty_display_info
*tty_out
;
1551 if (!tty_out
->term_initted
)
1554 if (!tty_out
->output
)
1555 return; /* The tty is suspended. */
1557 /* Go to and clear the last line of the terminal. */
1559 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1561 /* Code adapted from tty_clear_end_of_line. */
1562 if (tty_out
->TS_clr_line
)
1564 emacs_tputs (tty_out
, tty_out
->TS_clr_line
, 1, cmputc
);
1567 { /* have to do it the hard way */
1569 tty_turn_off_insert (tty_out
);
1571 for (i
= curX (tty_out
); i
< FrameCols (tty_out
) - 1; i
++)
1573 fputc (' ', tty_out
->output
);
1577 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1578 fflush (tty_out
->output
);
1580 if (tty_out
->terminal
->reset_terminal_modes_hook
)
1581 tty_out
->terminal
->reset_terminal_modes_hook (tty_out
->terminal
);
1584 /* Avoid possible loss of output when changing terminal modes. */
1585 fsync (fileno (tty_out
->output
));
1589 #ifdef F_SETOWN /* F_SETFL does not imply existence of F_SETOWN */
1590 if (interrupt_input
)
1592 reset_sigio (fileno (tty_out
->input
));
1593 fcntl (fileno (tty_out
->input
), F_SETOWN
,
1594 old_fcntl_owner
[fileno (tty_out
->input
)]);
1596 #endif /* F_SETOWN */
1598 fcntl (fileno (tty_out
->input
), F_SETFL
,
1599 fcntl (fileno (tty_out
->input
), F_GETFL
, 0) & ~O_NDELAY
);
1601 #endif /* F_SETFL */
1603 if (tty_out
->old_tty
)
1604 while (EMACS_SET_TTY (fileno (tty_out
->input
),
1605 tty_out
->old_tty
, 0) < 0 && errno
== EINTR
)
1608 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
1613 widen_foreground_group (fileno (tty_out
->input
));
1619 /* Set up the proper status flags for use of a pty. */
1625 /* I'm told that TOICREMOTE does not mean control chars
1626 "can't be sent" but rather that they don't have
1627 input-editing or signaling effects.
1628 That should be good, because we have other ways
1629 to do those things in Emacs.
1630 However, telnet mode seems not to work on 4.2.
1631 So TIOCREMOTE is turned off now. */
1633 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
1634 will hang. In particular, the "timeout" feature (which
1635 causes a read to return if there is no data available)
1636 does this. Also it is known that telnet mode will hang
1637 in such a way that Emacs must be stopped (perhaps this
1638 is the same problem).
1640 If TIOCREMOTE is turned off, then there is a bug in
1641 hp-ux which sometimes loses data. Apparently the
1642 code which blocks the master process when the internal
1643 buffer fills up does not work. Other than this,
1644 though, everything else seems to work fine.
1646 Since the latter lossage is more benign, we may as well
1647 lose that way. -- cph */
1649 #if defined(UNIX98_PTYS)
1652 ioctl (fd
, FIONBIO
, &on
);
1657 #endif /* HAVE_PTYS */
1659 #if !defined(CANNOT_DUMP) || !defined(SYSTEM_MALLOC)
1660 /* Some systems that cannot dump also cannot implement these. */
1663 * Return the address of the start of the text segment prior to
1664 * doing an unexec. After unexec the return value is undefined.
1665 * See crt0.c for further explanation and _start.
1669 #if !(defined (__NetBSD__) && defined (__ELF__))
1670 #ifndef HAVE_TEXT_START
1675 return ((char *) TEXT_START
);
1677 extern int _start ();
1678 return ((char *) _start
);
1679 #endif /* TEXT_START */
1681 #endif /* not HAVE_TEXT_START */
1685 * Return the address of the start of the data segment prior to
1686 * doing an unexec. After unexec the return value is undefined.
1687 * See crt0.c for further information and definition of data_start.
1689 * Apparently, on BSD systems this is etext at startup. On
1690 * USG systems (swapping) this is highly mmu dependent and
1691 * is also dependent on whether or not the program is running
1692 * with shared text. Generally there is a (possibly large)
1693 * gap between end of text and start of data with shared text.
1695 * On Uniplus+ systems with shared text, data starts at a
1696 * fixed address. Each port (from a given oem) is generally
1697 * different, and the specific value of the start of data can
1698 * be obtained via the UniPlus+ specific "uvar" system call,
1699 * however the method outlined in crt0.c seems to be more portable.
1701 * Probably what will have to happen when a USG unexec is available,
1702 * at least on UniPlus, is temacs will have to be made unshared so
1703 * that text and data are contiguous. Then once loadup is complete,
1704 * unexec will produce a shared executable where the data can be
1705 * at the normal shared text boundary and the startofdata variable
1706 * will be patched by unexec to the correct value.
1710 #ifndef start_of_data
1715 return ((char *) DATA_START
);
1717 #ifdef ORDINARY_LINK
1719 * This is a hack. Since we're not linking crt0.c or pre_crt0.c,
1720 * data_start isn't defined. We take the address of environ, which
1721 * is known to live at or near the start of the system crt0.c, and
1722 * we don't sweat the handful of bytes that might lose.
1724 extern char **environ
;
1726 return ((char *) &environ
);
1728 extern int data_start
;
1729 return ((char *) &data_start
);
1730 #endif /* ORDINARY_LINK */
1731 #endif /* DATA_START */
1733 #endif /* start_of_data */
1734 #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */
1736 /* init_system_name sets up the string for the Lisp function
1737 system-name to return. */
1739 extern Lisp_Object Vsystem_name
;
1742 #include <sys/socket.h>
1744 #endif /* HAVE_SOCKETS */
1747 #ifndef HAVE_H_ERRNO
1750 #endif /* TRY_AGAIN */
1755 #ifndef HAVE_GETHOSTNAME
1758 Vsystem_name
= build_string (uts
.nodename
);
1759 #else /* HAVE_GETHOSTNAME */
1760 unsigned int hostname_size
= 256;
1761 char *hostname
= (char *) alloca (hostname_size
);
1763 /* Try to get the host name; if the buffer is too short, try
1764 again. Apparently, the only indication gethostname gives of
1765 whether the buffer was large enough is the presence or absence
1766 of a '\0' in the string. Eech. */
1769 gethostname (hostname
, hostname_size
- 1);
1770 hostname
[hostname_size
- 1] = '\0';
1772 /* Was the buffer large enough for the '\0'? */
1773 if (strlen (hostname
) < hostname_size
- 1)
1776 hostname_size
<<= 1;
1777 hostname
= (char *) alloca (hostname_size
);
1780 /* Turn the hostname into the official, fully-qualified hostname.
1781 Don't do this if we're going to dump; this can confuse system
1782 libraries on some machines and make the dumped emacs core dump. */
1785 #endif /* not CANNOT_DUMP */
1786 if (! index (hostname
, '.'))
1789 #ifdef HAVE_GETADDRINFO
1790 struct addrinfo
*res
;
1791 struct addrinfo hints
;
1794 memset (&hints
, 0, sizeof(hints
));
1795 hints
.ai_socktype
= SOCK_STREAM
;
1796 hints
.ai_flags
= AI_CANONNAME
;
1798 for (count
= 0;; count
++)
1800 if ((ret
= getaddrinfo (hostname
, NULL
, &hints
, &res
)) == 0
1801 || ret
!= EAI_AGAIN
)
1806 Fsleep_for (make_number (1), Qnil
);
1811 struct addrinfo
*it
= res
;
1814 char *fqdn
= it
->ai_canonname
;
1815 if (fqdn
&& index (fqdn
, '.')
1816 && strcmp (fqdn
, "localhost.localdomain") != 0)
1822 hostname
= alloca (strlen (it
->ai_canonname
) + 1);
1823 strcpy (hostname
, it
->ai_canonname
);
1827 #else /* !HAVE_GETADDRINFO */
1829 for (count
= 0;; count
++)
1835 hp
= gethostbyname (hostname
);
1837 if (! (hp
== 0 && h_errno
== TRY_AGAIN
))
1844 Fsleep_for (make_number (1), Qnil
);
1849 char *fqdn
= (char *) hp
->h_name
;
1851 if (!index (fqdn
, '.'))
1853 /* We still don't have a fully qualified domain name.
1854 Try to find one in the list of alternate names */
1855 char **alias
= hp
->h_aliases
;
1857 && (!index (*alias
, '.')
1858 || !strcmp (*alias
, "localhost.localdomain")))
1865 #endif /* !HAVE_GETADDRINFO */
1867 #endif /* HAVE_SOCKETS */
1868 Vsystem_name
= build_string (hostname
);
1869 #endif /* HAVE_GETHOSTNAME */
1872 for (p
= SDATA (Vsystem_name
); *p
; p
++)
1873 if (*p
== ' ' || *p
== '\t')
1879 #if !defined (HAVE_SELECT)
1881 #include "sysselect.h"
1884 #if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT)
1885 /* Cause explanatory error message at compile time,
1886 since the select emulation is not good enough for X. */
1887 int *x
= &x_windows_lose_if_no_select_system_call
;
1890 /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs
1891 * Only checks read descriptors.
1893 /* How long to wait between checking fds in select */
1894 #define SELECT_PAUSE 1
1897 /* For longjmp'ing back to read_input_waiting. */
1899 jmp_buf read_alarm_throw
;
1901 /* Nonzero if the alarm signal should throw back to read_input_waiting.
1902 The read_socket_hook function sets this to 1 while it is waiting. */
1904 int read_alarm_should_throw
;
1910 signal (SIGALRM
, SIG_IGN
);
1911 SIGNAL_THREAD_CHECK (SIGALRM
);
1912 if (read_alarm_should_throw
)
1913 longjmp (read_alarm_throw
, 1);
1917 /* Only rfds are checked. */
1919 sys_select (nfds
, rfds
, wfds
, efds
, timeout
)
1921 SELECT_TYPE
*rfds
, *wfds
, *efds
;
1922 EMACS_TIME
*timeout
;
1924 /* XXX This needs to be updated for multi-tty support. Is there
1925 anybody who needs to emulate select these days? */
1930 extern int proc_buffered_char
[];
1931 #ifndef subprocesses
1932 int process_tick
= 0, update_tick
= 0;
1934 extern int process_tick
, update_tick
;
1938 #if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS)
1939 /* If we're using X, then the native select will work; we only need the
1940 emulation for non-X usage. */
1941 if (!NILP (Vinitial_window_system
))
1942 return select (nfds
, rfds
, wfds
, efds
, timeout
);
1944 timeoutval
= timeout
? EMACS_SECS (*timeout
) : 100000;
1945 local_timeout
= &timeoutval
;
1957 /* If we are looking only for the terminal, with no timeout,
1958 just read it and wait -- that's more efficient. */
1959 if (*local_timeout
== 100000 && process_tick
== update_tick
1960 && FD_ISSET (0, &orfds
))
1963 for (fd
= 1; fd
< nfds
; ++fd
)
1964 if (FD_ISSET (fd
, &orfds
))
1966 if (! detect_input_pending ())
1967 read_input_waiting ();
1973 /* Once a second, till the timer expires, check all the flagged read
1974 * descriptors to see if any input is available. If there is some then
1975 * set the corresponding bit in the return copy of rfds.
1979 register int to_check
, fd
;
1983 for (to_check
= nfds
, fd
= 0; --to_check
>= 0; fd
++)
1985 if (FD_ISSET (fd
, &orfds
))
1987 int avail
= 0, status
= 0;
1990 avail
= detect_input_pending (); /* Special keyboard handler */
1994 status
= ioctl (fd
, FIONREAD
, &avail
);
1995 #else /* no FIONREAD */
1996 /* Hoping it will return -1 if nothing available
1997 or 0 if all 0 chars requested are read. */
1998 if (proc_buffered_char
[fd
] >= 0)
2002 avail
= read (fd
, &buf
, 1);
2004 proc_buffered_char
[fd
] = buf
;
2006 #endif /* no FIONREAD */
2008 if (status
>= 0 && avail
> 0)
2016 if (*local_timeout
== 0 || ravail
!= 0 || process_tick
!= update_tick
)
2019 turn_on_atimers (0);
2020 signal (SIGALRM
, select_alarm
);
2022 alarm (SELECT_PAUSE
);
2024 /* Wait for a SIGALRM (or maybe a SIGTINT) */
2025 while (select_alarmed
== 0 && *local_timeout
!= 0
2026 && process_tick
== update_tick
)
2028 /* If we are interested in terminal input,
2029 wait by reading the terminal.
2030 That makes instant wakeup for terminal input at least. */
2031 if (FD_ISSET (0, &orfds
))
2033 read_input_waiting ();
2034 if (detect_input_pending ())
2040 (*local_timeout
) -= SELECT_PAUSE
;
2042 /* Reset the old alarm if there was one. */
2043 turn_on_atimers (1);
2045 if (*local_timeout
== 0) /* Stop on timer being cleared */
2050 #endif /* not WINDOWSNT */
2052 /* Read keyboard input into the standard buffer,
2053 waiting for at least one character. */
2056 read_input_waiting ()
2058 /* XXX This needs to be updated for multi-tty support. Is there
2059 anybody who needs to emulate select these days? */
2061 extern int quit_char
;
2063 if (read_socket_hook
)
2065 struct input_event hold_quit
;
2067 EVENT_INIT (hold_quit
);
2068 hold_quit
.kind
= NO_EVENT
;
2070 read_alarm_should_throw
= 0;
2071 if (! setjmp (read_alarm_throw
))
2072 nread
= (*read_socket_hook
) (0, 1, &hold_quit
);
2076 if (hold_quit
.kind
!= NO_EVENT
)
2077 kbd_buffer_store_event (&hold_quit
);
2081 struct input_event e
;
2083 nread
= read (fileno (stdin
), buf
, 1);
2086 /* Scan the chars for C-g and store them in kbd_buffer. */
2087 e
.kind
= ASCII_KEYSTROKE_EVENT
;
2088 e
.frame_or_window
= selected_frame
;
2090 for (i
= 0; i
< nread
; i
++)
2092 /* Convert chars > 0177 to meta events if desired.
2093 We do this under the same conditions that read_avail_input does. */
2094 if (read_socket_hook
== 0)
2096 /* If the user says she has a meta key, then believe her. */
2097 if (meta_key
== 1 && (buf
[i
] & 0x80))
2098 e
.modifiers
= meta_modifier
;
2103 XSETINT (e
.code
, buf
[i
]);
2104 kbd_buffer_store_event (&e
);
2105 /* Don't look at input that follows a C-g too closely.
2106 This reduces lossage due to autorepeat on C-g. */
2107 if (buf
[i
] == quit_char
)
2113 #if !defined (HAVE_SELECT)
2114 #define select sys_select
2117 #endif /* not HAVE_SELECT */
2118 #endif /* not MSDOS */
2120 /* POSIX signals support - DJB */
2121 /* Anyone with POSIX signals should have ANSI C declarations */
2123 #ifdef POSIX_SIGNALS
2125 sigset_t empty_mask
, full_mask
;
2128 sys_signal (int signal_number
, signal_handler_t action
)
2130 struct sigaction new_action
, old_action
;
2131 sigemptyset (&new_action
.sa_mask
);
2132 new_action
.sa_handler
= action
;
2133 new_action
.sa_flags
= 0;
2134 #if defined (SA_RESTART)
2135 /* Emacs mostly works better with restartable system services. If this
2136 flag exists, we probably want to turn it on here.
2137 However, on some systems this resets the timeout of `select'
2138 which means that `select' never finishes if it keeps getting signals.
2139 BROKEN_SA_RESTART is defined on those systems. */
2140 /* It's not clear why the comment above says "mostly works better". --Stef
2141 When SYNC_INPUT is set, we don't want SA_RESTART because we need to poll
2142 for pending input so we need long-running syscalls to be interrupted
2143 after a signal that sets the interrupt_input_pending flag. */
2144 /* Non-interactive keyboard input goes through stdio, where we always
2145 want restartable system calls. */
2146 # if defined (BROKEN_SA_RESTART) || defined(SYNC_INPUT)
2149 new_action
.sa_flags
= SA_RESTART
;
2151 sigaction (signal_number
, &new_action
, &old_action
);
2152 return (old_action
.sa_handler
);
2156 /* If we're compiling with GCC, we don't need this function, since it
2157 can be written as a macro. */
2159 sys_sigmask (int sig
)
2162 sigemptyset (&mask
);
2163 sigaddset (&mask
, sig
);
2168 /* I'd like to have these guys return pointers to the mask storage in here,
2169 but there'd be trouble if the code was saving multiple masks. I'll be
2170 safe and pass the structure. It normally won't be more than 2 bytes
2174 sys_sigblock (sigset_t new_mask
)
2177 sigprocmask (SIG_BLOCK
, &new_mask
, &old_mask
);
2182 sys_sigunblock (sigset_t new_mask
)
2185 sigprocmask (SIG_UNBLOCK
, &new_mask
, &old_mask
);
2190 sys_sigsetmask (sigset_t new_mask
)
2193 sigprocmask (SIG_SETMASK
, &new_mask
, &old_mask
);
2197 #endif /* POSIX_SIGNALS */
2199 #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST
2200 static char *my_sys_siglist
[NSIG
];
2204 # define sys_siglist my_sys_siglist
2210 #ifdef POSIX_SIGNALS
2211 sigemptyset (&empty_mask
);
2212 sigfillset (&full_mask
);
2215 #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST
2219 sys_siglist
[SIGABRT
] = "Aborted";
2222 sys_siglist
[SIGAIO
] = "LAN I/O interrupt";
2225 sys_siglist
[SIGALRM
] = "Alarm clock";
2228 sys_siglist
[SIGBUS
] = "Bus error";
2231 sys_siglist
[SIGCLD
] = "Child status changed";
2234 sys_siglist
[SIGCHLD
] = "Child status changed";
2237 sys_siglist
[SIGCONT
] = "Continued";
2240 sys_siglist
[SIGDANGER
] = "Swap space dangerously low";
2243 sys_siglist
[SIGDGNOTIFY
] = "Notification message in queue";
2246 sys_siglist
[SIGEMT
] = "Emulation trap";
2249 sys_siglist
[SIGFPE
] = "Arithmetic exception";
2252 sys_siglist
[SIGFREEZE
] = "SIGFREEZE";
2255 sys_siglist
[SIGGRANT
] = "Monitor mode granted";
2258 sys_siglist
[SIGHUP
] = "Hangup";
2261 sys_siglist
[SIGILL
] = "Illegal instruction";
2264 sys_siglist
[SIGINT
] = "Interrupt";
2267 sys_siglist
[SIGIO
] = "I/O possible";
2270 sys_siglist
[SIGIOINT
] = "I/O intervention required";
2273 sys_siglist
[SIGIOT
] = "IOT trap";
2276 sys_siglist
[SIGKILL
] = "Killed";
2279 sys_siglist
[SIGLOST
] = "Resource lost";
2282 sys_siglist
[SIGLWP
] = "SIGLWP";
2285 sys_siglist
[SIGMSG
] = "Monitor mode data available";
2288 sys_siglist
[SIGWIND
] = "SIGPHONE";
2291 sys_siglist
[SIGPIPE
] = "Broken pipe";
2294 sys_siglist
[SIGPOLL
] = "Pollable event occurred";
2297 sys_siglist
[SIGPROF
] = "Profiling timer expired";
2300 sys_siglist
[SIGPTY
] = "PTY I/O interrupt";
2303 sys_siglist
[SIGPWR
] = "Power-fail restart";
2306 sys_siglist
[SIGQUIT
] = "Quit";
2309 sys_siglist
[SIGRETRACT
] = "Need to relinguish monitor mode";
2312 sys_siglist
[SIGSAK
] = "Secure attention";
2315 sys_siglist
[SIGSEGV
] = "Segmentation violation";
2318 sys_siglist
[SIGSOUND
] = "Sound completed";
2321 sys_siglist
[SIGSTOP
] = "Stopped (signal)";
2324 sys_siglist
[SIGSTP
] = "Stopped (user)";
2327 sys_siglist
[SIGSYS
] = "Bad argument to system call";
2330 sys_siglist
[SIGTERM
] = "Terminated";
2333 sys_siglist
[SIGTHAW
] = "SIGTHAW";
2336 sys_siglist
[SIGTRAP
] = "Trace/breakpoint trap";
2339 sys_siglist
[SIGTSTP
] = "Stopped (user)";
2342 sys_siglist
[SIGTTIN
] = "Stopped (tty input)";
2345 sys_siglist
[SIGTTOU
] = "Stopped (tty output)";
2348 sys_siglist
[SIGURG
] = "Urgent I/O condition";
2351 sys_siglist
[SIGUSR1
] = "User defined signal 1";
2354 sys_siglist
[SIGUSR2
] = "User defined signal 2";
2357 sys_siglist
[SIGVTALRM
] = "Virtual timer expired";
2360 sys_siglist
[SIGWAITING
] = "Process's LWPs are blocked";
2363 sys_siglist
[SIGWINCH
] = "Window size changed";
2366 sys_siglist
[SIGWIND
] = "SIGWIND";
2369 sys_siglist
[SIGXCPU
] = "CPU time limit exceeded";
2372 sys_siglist
[SIGXFSZ
] = "File size limit exceeded";
2375 #endif /* !defined HAVE_STRSIGNAL && !defined HAVE_DECL_SYS_SIGLIST */
2384 /* Figure out how many bits the system's random number generator uses.
2385 `random' and `lrand48' are assumed to return 31 usable bits.
2386 BSD `rand' returns a 31 bit value but the low order bits are unusable;
2387 so we'll shift it and treat it like the 15-bit USG `rand'. */
2391 # define RAND_BITS 31
2392 # else /* !HAVE_RANDOM */
2393 # ifdef HAVE_LRAND48
2394 # define RAND_BITS 31
2395 # define random lrand48
2396 # else /* !HAVE_LRAND48 */
2397 # define RAND_BITS 15
2398 # if RAND_MAX == 32767
2399 # define random rand
2400 # else /* RAND_MAX != 32767 */
2401 # if RAND_MAX == 2147483647
2402 # define random() (rand () >> 16)
2403 # else /* RAND_MAX != 2147483647 */
2405 # define random rand
2407 # define random() (rand () >> 16)
2409 # endif /* RAND_MAX != 2147483647 */
2410 # endif /* RAND_MAX != 32767 */
2411 # endif /* !HAVE_LRAND48 */
2412 # endif /* !HAVE_RANDOM */
2413 #endif /* !RAND_BITS */
2420 srandom ((unsigned int)arg
);
2422 # ifdef HAVE_LRAND48
2425 srand ((unsigned int)arg
);
2431 * Build a full Emacs-sized word out of whatever we've got.
2432 * This suffices even for a 64-bit architecture with a 15-bit rand.
2437 long val
= random ();
2438 #if VALBITS > RAND_BITS
2439 val
= (val
<< RAND_BITS
) ^ random ();
2440 #if VALBITS > 2*RAND_BITS
2441 val
= (val
<< RAND_BITS
) ^ random ();
2442 #if VALBITS > 3*RAND_BITS
2443 val
= (val
<< RAND_BITS
) ^ random ();
2444 #if VALBITS > 4*RAND_BITS
2445 val
= (val
<< RAND_BITS
) ^ random ();
2446 #endif /* need at least 5 */
2447 #endif /* need at least 4 */
2448 #endif /* need at least 3 */
2449 #endif /* need at least 2 */
2450 return val
& ((1L << VALBITS
) - 1);
2453 #ifndef HAVE_STRERROR
2459 extern char *sys_errlist
[];
2460 extern int sys_nerr
;
2462 if (errnum
>= 0 && errnum
< sys_nerr
)
2463 return sys_errlist
[errnum
];
2464 return (char *) "Unknown error";
2466 #endif /* not WINDOWSNT */
2467 #endif /* ! HAVE_STRERROR */
2470 emacs_open (path
, oflag
, mode
)
2474 register int rtnval
;
2476 while ((rtnval
= open (path
, oflag
, mode
)) == -1
2477 && (errno
== EINTR
))
2487 register int rtnval
;
2489 while ((rtnval
= close (fd
)) == -1
2490 && (errno
== EINTR
))
2493 /* If close is interrupted SunOS 4.1 may or may not have closed the
2494 file descriptor. If it did the second close will fail with
2495 errno = EBADF. That means we have succeeded. */
2496 if (rtnval
== -1 && did_retry
&& errno
== EBADF
)
2503 emacs_read (fildes
, buf
, nbyte
)
2508 register int rtnval
;
2510 while ((rtnval
= read (fildes
, buf
, nbyte
)) == -1
2511 && (errno
== EINTR
))
2517 emacs_write (fildes
, buf
, nbyte
)
2522 register int rtnval
, bytes_written
;
2528 rtnval
= write (fildes
, buf
, nbyte
);
2535 /* I originally used `QUIT' but that might causes files to
2536 be truncated if you hit C-g in the middle of it. --Stef */
2537 process_pending_signals ();
2542 return (bytes_written
? bytes_written
: -1);
2547 bytes_written
+= rtnval
;
2549 return (bytes_written
);
2554 * All of the following are for USG.
2556 * On USG systems the system calls are INTERRUPTIBLE by signals
2557 * that the user program has elected to catch. Thus the system call
2558 * must be retried in these cases. To handle this without massive
2559 * changes in the source code, we remap the standard system call names
2560 * to names for our own functions in sysdep.c that do the system call
2561 * with retries. Actually, for portability reasons, it is good
2562 * programming practice, as this example shows, to limit all actual
2563 * system calls to a single occurrence in the source. Sure, this
2564 * adds an extra level of function call overhead but it is almost
2565 * always negligible. Fred Fish, Unisoft Systems Inc.
2569 * Warning, this function may not duplicate 4.2 action properly
2570 * under error conditions.
2574 /* In 4.1, param.h fails to define this. */
2575 #define MAXPATHLEN 1024
2584 char *npath
, *spath
;
2585 extern char *getcwd ();
2587 BLOCK_INPUT
; /* getcwd uses malloc */
2588 spath
= npath
= getcwd ((char *) 0, MAXPATHLEN
);
2594 /* On Altos 3068, getcwd can return @hostname/dir, so discard
2595 up to first slash. Should be harmless on other systems. */
2596 while (*npath
&& *npath
!= '/')
2598 strcpy (pathname
, npath
);
2599 free (spath
); /* getcwd uses malloc */
2604 #endif /* HAVE_GETWD */
2607 * Emulate rename using unlink/link. Note that this is
2608 * only partially correct. Also, doesn't enforce restriction
2609 * that files be of same type (regular->regular, dir->dir, etc).
2618 if (access (from
, 0) == 0)
2621 if (link (from
, to
) == 0)
2622 if (unlink (from
) == 0)
2631 #if defined(HPUX) && !defined(HAVE_PERROR)
2633 /* HPUX curses library references perror, but as far as we know
2634 it won't be called. Anyway this definition will do for now. */
2639 #endif /* HPUX and not HAVE_PERROR */
2644 * Emulate BSD dup2. First close newd if it already exists.
2645 * Then, attempt to dup oldd. If not successful, call dup2 recursively
2646 * until we are, then close the unsuccessful ones.
2653 register int fd
, ret
;
2658 return fcntl (oldd
, F_DUPFD
, newd
);
2665 ret
= dup2 (old
,new);
2671 #endif /* not HAVE_DUP2 */
2674 * Gettimeofday. Simulate as much as possible. Only accurate
2675 * to nearest second. Emacs doesn't use tzp so ignore it for now.
2676 * Only needed when subprocesses are defined.
2680 #ifndef HAVE_GETTIMEOFDAY
2685 gettimeofday (tp
, tzp
)
2687 struct timezone
*tzp
;
2689 extern long time ();
2691 tp
->tv_sec
= time ((long *)0);
2694 tzp
->tz_minuteswest
= -1;
2700 #endif /* subprocess && !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL */
2703 * This function will go away as soon as all the stubs fixed. (fnf)
2710 printf ("%s not yet implemented\r\n", badfunc
);
2711 reset_all_sys_modes ();
2717 /* Directory routines for systems that don't have them. */
2719 #ifdef SYSV_SYSTEM_DIR
2723 #if !defined (HAVE_CLOSEDIR)
2726 closedir (DIR *dirp
/* stream from opendir */)
2730 rtnval
= emacs_close (dirp
->dd_fd
);
2732 /* Some systems (like Solaris) allocate the buffer and the DIR all
2733 in one block. Why in the world are we freeing this ourselves
2735 #if ! defined (SOLARIS2)
2736 xfree ((char *) dirp
->dd_buf
); /* directory block defined in <dirent.h> */
2738 xfree ((char *) dirp
);
2742 #endif /* not HAVE_CLOSEDIR */
2743 #endif /* SYSV_SYSTEM_DIR */
2747 set_file_times (filename
, atime
, mtime
)
2748 const char *filename
;
2749 EMACS_TIME atime
, mtime
;
2752 struct timeval tv
[2];
2755 return utimes (filename
, tv
);
2756 #else /* not HAVE_UTIMES */
2758 utb
.actime
= EMACS_SECS (atime
);
2759 utb
.modtime
= EMACS_SECS (mtime
);
2760 return utime (filename
, &utb
);
2761 #endif /* not HAVE_UTIMES */
2764 /* mkdir and rmdir functions, for systems which don't have them. */
2768 * Written by Robert Rother, Mariah Corporation, August 1985.
2770 * If you want it, it's yours. All I ask in return is that if you
2771 * figure out how to do this in a Bourne Shell script you send me
2773 * sdcsvax!rmr or rmr@uscd
2775 * Severely hacked over by John Gilmore to make a 4.2BSD compatible
2776 * subroutine. 11Mar86; hoptoad!gnu
2778 * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir,
2779 * subroutine didn't return EEXIST. It does now.
2785 #ifdef MKDIR_PROTOTYPE
2789 mkdir (dpath
, dmode
)
2794 int cpid
, status
, fd
;
2795 struct stat statbuf
;
2797 if (stat (dpath
, &statbuf
) == 0)
2799 errno
= EEXIST
; /* Stat worked, so it already exists */
2803 /* If stat fails for a reason other than non-existence, return error */
2804 if (errno
!= ENOENT
)
2807 synch_process_alive
= 1;
2808 switch (cpid
= fork ())
2811 case -1: /* Error in fork */
2812 return (-1); /* Errno is set already */
2814 case 0: /* Child process */
2816 * Cheap hack to set mode of new directory. Since this
2817 * child process is going away anyway, we zap its umask.
2818 * FIXME, this won't suffice to set SUID, SGID, etc. on this
2819 * directory. Does anybody care?
2821 status
= umask (0); /* Get current umask */
2822 status
= umask (status
| (0777 & ~dmode
)); /* Set for mkdir */
2823 fd
= emacs_open ("/dev/null", O_RDWR
, 0);
2830 execl ("/bin/mkdir", "mkdir", dpath
, (char *) 0);
2831 _exit (-1); /* Can't exec /bin/mkdir */
2833 default: /* Parent process */
2834 wait_for_termination (cpid
);
2837 if (synch_process_death
!= 0 || synch_process_retcode
!= 0
2838 || synch_process_termsig
!= 0)
2840 errno
= EIO
; /* We don't know why, but */
2841 return -1; /* /bin/mkdir failed */
2846 #endif /* not HAVE_MKDIR */
2853 int cpid
, status
, fd
;
2854 struct stat statbuf
;
2856 if (stat (dpath
, &statbuf
) != 0)
2858 /* Stat just set errno. We don't have to */
2862 synch_process_alive
= 1;
2863 switch (cpid
= fork ())
2866 case -1: /* Error in fork */
2867 return (-1); /* Errno is set already */
2869 case 0: /* Child process */
2870 fd
= emacs_open ("/dev/null", O_RDWR
, 0);
2877 execl ("/bin/rmdir", "rmdir", dpath
, (char *) 0);
2878 _exit (-1); /* Can't exec /bin/rmdir */
2880 default: /* Parent process */
2881 wait_for_termination (cpid
);
2884 if (synch_process_death
!= 0 || synch_process_retcode
!= 0
2885 || synch_process_termsig
!= 0)
2887 errno
= EIO
; /* We don't know why, but */
2888 return -1; /* /bin/rmdir failed */
2893 #endif /* !HAVE_RMDIR */
2903 register int length
;
2905 while (length
-- > 0)
2909 #endif /* no bzero */
2910 #endif /* BSTRING */
2912 #if (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY)
2915 /* Saying `void' requires a declaration, above, where bcopy is used
2916 and that declaration causes pain for systems where bcopy is a macro. */
2917 bcopy (b1
, b2
, length
)
2920 register int length
;
2922 while (length
-- > 0)
2925 #endif /* (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */
2930 bcmp (b1
, b2
, length
) /* This could be a macro! */
2933 register int length
;
2935 while (length
-- > 0)
2941 #endif /* no bcmp */
2942 #endif /* not BSTRING */
2944 #ifndef HAVE_STRSIGNAL
2951 if (0 <= code
&& code
< NSIG
)
2953 /* Cast to suppress warning if the table has const char *. */
2954 signame
= (char *) sys_siglist
[code
];
2959 #endif /* HAVE_STRSIGNAL */
2962 /* For make-serial-process */
2963 int serial_open (char *port
)
2967 fd
= emacs_open ((char*) port
,
2980 error ("Could not open %s: %s",
2981 port
, emacs_strerror (errno
));
2984 ioctl (fd
, TIOCEXCL
, (char *) 0);
2989 #endif /* TERMIOS */
2993 #if !defined (HAVE_CFMAKERAW)
2994 /* Workaround for targets which are missing cfmakeraw. */
2995 /* Pasted from man page. */
2996 static void cfmakeraw (struct termios
*termios_p
)
2998 termios_p
->c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
2999 termios_p
->c_oflag
&= ~OPOST
;
3000 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
3001 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
3002 termios_p
->c_cflag
|= CS8
;
3004 #endif /* !defined (HAVE_CFMAKERAW */
3006 #if !defined (HAVE_CFSETSPEED)
3007 /* Workaround for targets which are missing cfsetspeed. */
3008 static int cfsetspeed (struct termios
*termios_p
, speed_t vitesse
)
3010 return (cfsetispeed (termios_p
, vitesse
)
3011 + cfsetospeed (termios_p
, vitesse
));
3015 /* For serial-process-configure */
3017 serial_configure (struct Lisp_Process
*p
,
3018 Lisp_Object contact
)
3020 Lisp_Object childp2
= Qnil
;
3021 Lisp_Object tem
= Qnil
;
3022 struct termios attr
;
3024 char summary
[4] = "???"; /* This usually becomes "8N1". */
3026 childp2
= Fcopy_sequence (p
->childp
);
3028 /* Read port attributes and prepare default configuration. */
3029 err
= tcgetattr (p
->outfd
, &attr
);
3031 error ("tcgetattr() failed: %s", emacs_strerror (errno
));
3033 #if defined (CLOCAL)
3034 attr
.c_cflag
|= CLOCAL
;
3037 attr
.c_cflag
|= CREAD
;
3040 /* Configure speed. */
3041 if (!NILP (Fplist_member (contact
, QCspeed
)))
3042 tem
= Fplist_get (contact
, QCspeed
);
3044 tem
= Fplist_get (p
->childp
, QCspeed
);
3046 err
= cfsetspeed (&attr
, XINT (tem
));
3048 error ("cfsetspeed(%d) failed: %s", XINT (tem
), emacs_strerror (errno
));
3049 childp2
= Fplist_put (childp2
, QCspeed
, tem
);
3051 /* Configure bytesize. */
3052 if (!NILP (Fplist_member (contact
, QCbytesize
)))
3053 tem
= Fplist_get (contact
, QCbytesize
);
3055 tem
= Fplist_get (p
->childp
, QCbytesize
);
3057 tem
= make_number (8);
3059 if (XINT (tem
) != 7 && XINT (tem
) != 8)
3060 error (":bytesize must be nil (8), 7, or 8");
3061 summary
[0] = XINT(tem
) + '0';
3062 #if defined (CSIZE) && defined (CS7) && defined (CS8)
3063 attr
.c_cflag
&= ~CSIZE
;
3064 attr
.c_cflag
|= ((XINT (tem
) == 7) ? CS7
: CS8
);
3066 /* Don't error on bytesize 8, which should be set by cfmakeraw. */
3067 if (XINT (tem
) != 8)
3068 error ("Bytesize cannot be changed");
3070 childp2
= Fplist_put (childp2
, QCbytesize
, tem
);
3072 /* Configure parity. */
3073 if (!NILP (Fplist_member (contact
, QCparity
)))
3074 tem
= Fplist_get (contact
, QCparity
);
3076 tem
= Fplist_get (p
->childp
, QCparity
);
3077 if (!NILP (tem
) && !EQ (tem
, Qeven
) && !EQ (tem
, Qodd
))
3078 error (":parity must be nil (no parity), `even', or `odd'");
3079 #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK)
3080 attr
.c_cflag
&= ~(PARENB
| PARODD
);
3081 attr
.c_iflag
&= ~(IGNPAR
| INPCK
);
3086 else if (EQ (tem
, Qeven
))
3089 attr
.c_cflag
|= PARENB
;
3090 attr
.c_iflag
|= (IGNPAR
| INPCK
);
3092 else if (EQ (tem
, Qodd
))
3095 attr
.c_cflag
|= (PARENB
| PARODD
);
3096 attr
.c_iflag
|= (IGNPAR
| INPCK
);
3099 /* Don't error on no parity, which should be set by cfmakeraw. */
3101 error ("Parity cannot be configured");
3103 childp2
= Fplist_put (childp2
, QCparity
, tem
);
3105 /* Configure stopbits. */
3106 if (!NILP (Fplist_member (contact
, QCstopbits
)))
3107 tem
= Fplist_get (contact
, QCstopbits
);
3109 tem
= Fplist_get (p
->childp
, QCstopbits
);
3111 tem
= make_number (1);
3113 if (XINT (tem
) != 1 && XINT (tem
) != 2)
3114 error (":stopbits must be nil (1 stopbit), 1, or 2");
3115 summary
[2] = XINT (tem
) + '0';
3116 #if defined (CSTOPB)
3117 attr
.c_cflag
&= ~CSTOPB
;
3118 if (XINT (tem
) == 2)
3119 attr
.c_cflag
|= CSTOPB
;
3121 /* Don't error on 1 stopbit, which should be set by cfmakeraw. */
3122 if (XINT (tem
) != 1)
3123 error ("Stopbits cannot be configured");
3125 childp2
= Fplist_put (childp2
, QCstopbits
, tem
);
3127 /* Configure flowcontrol. */
3128 if (!NILP (Fplist_member (contact
, QCflowcontrol
)))
3129 tem
= Fplist_get (contact
, QCflowcontrol
);
3131 tem
= Fplist_get (p
->childp
, QCflowcontrol
);
3132 if (!NILP (tem
) && !EQ (tem
, Qhw
) && !EQ (tem
, Qsw
))
3133 error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
3134 #if defined (CRTSCTS)
3135 attr
.c_cflag
&= ~CRTSCTS
;
3137 #if defined (CNEW_RTSCTS)
3138 attr
.c_cflag
&= ~CNEW_RTSCTS
;
3140 #if defined (IXON) && defined (IXOFF)
3141 attr
.c_iflag
&= ~(IXON
| IXOFF
);
3145 /* Already configured. */
3147 else if (EQ (tem
, Qhw
))
3149 #if defined (CRTSCTS)
3150 attr
.c_cflag
|= CRTSCTS
;
3151 #elif defined (CNEW_RTSCTS)
3152 attr
.c_cflag
|= CNEW_RTSCTS
;
3154 error ("Hardware flowcontrol (RTS/CTS) not supported");
3157 else if (EQ (tem
, Qsw
))
3159 #if defined (IXON) && defined (IXOFF)
3160 attr
.c_iflag
|= (IXON
| IXOFF
);
3162 error ("Software flowcontrol (XON/XOFF) not supported");
3165 childp2
= Fplist_put (childp2
, QCflowcontrol
, tem
);
3167 /* Activate configuration. */
3168 err
= tcsetattr (p
->outfd
, TCSANOW
, &attr
);
3170 error ("tcsetattr() failed: %s", emacs_strerror (errno
));
3172 childp2
= Fplist_put (childp2
, QCsummary
, build_string (summary
));
3173 p
->childp
= childp2
;
3176 #endif /* TERMIOS */
3178 /* System depended enumeration of and access to system processes a-la ps(1). */
3182 /* Process enumeration and access via /proc. */
3185 list_system_processes ()
3187 Lisp_Object procdir
, match
, proclist
, next
;
3188 struct gcpro gcpro1
, gcpro2
;
3189 register Lisp_Object tail
;
3191 GCPRO2 (procdir
, match
);
3192 /* For every process on the system, there's a directory in the
3193 "/proc" pseudo-directory whose name is the numeric ID of that
3195 procdir
= build_string ("/proc");
3196 match
= build_string ("[0-9]+");
3197 proclist
= directory_files_internal (procdir
, Qnil
, match
, Qt
, 0, Qnil
);
3199 /* `proclist' gives process IDs as strings. Destructively convert
3200 each string into a number. */
3201 for (tail
= proclist
; CONSP (tail
); tail
= next
)
3204 XSETCAR (tail
, Fstring_to_number (XCAR (tail
), Qnil
));
3208 /* directory_files_internal returns the files in reverse order; undo
3210 proclist
= Fnreverse (proclist
);
3214 /* The WINDOWSNT implementation is on w32.c.
3215 The MSDOS implementation is on dosfns.c. */
3216 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3219 list_system_processes ()
3224 #endif /* !defined (WINDOWSNT) */
3228 time_from_jiffies (unsigned long long tval
, long hz
,
3229 time_t *sec
, unsigned *usec
)
3231 unsigned long long ullsec
;
3235 tval
-= ullsec
* hz
;
3236 /* Careful: if HZ > 1 million, then integer division by it yields zero. */
3238 *usec
= tval
* 1000000 / hz
;
3240 *usec
= tval
/ (hz
/ 1000000);
3244 ltime_from_jiffies (unsigned long long tval
, long hz
)
3249 time_from_jiffies (tval
, hz
, &sec
, &usec
);
3251 return list3 (make_number ((sec
>> 16) & 0xffff),
3252 make_number (sec
& 0xffff),
3253 make_number (usec
));
3257 get_up_time (time_t *sec
, unsigned *usec
)
3264 fup
= fopen ("/proc/uptime", "r");
3268 double uptime
, idletime
;
3270 /* The numbers in /proc/uptime use C-locale decimal point, but
3271 we already set ourselves to the C locale (see `fixup_locale'
3273 if (2 <= fscanf (fup
, "%lf %lf", &uptime
, &idletime
))
3276 *usec
= (uptime
- *sec
) * 1000000;
3283 #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff)
3284 #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12))
3287 procfs_ttyname (int rdev
)
3290 char name
[PATH_MAX
];
3293 fdev
= fopen ("/proc/tty/drivers", "r");
3298 unsigned long minor_beg
, minor_end
;
3299 char minor
[25]; /* 2 32-bit numbers + dash */
3302 while (!feof (fdev
) && !ferror (fdev
))
3304 if (3 <= fscanf (fdev
, "%*s %s %u %s %*s\n", name
, &major
, minor
)
3305 && major
== MAJOR (rdev
))
3307 minor_beg
= strtoul (minor
, &endp
, 0);
3309 minor_end
= minor_beg
;
3310 else if (*endp
== '-')
3311 minor_end
= strtoul (endp
+ 1, &endp
, 0);
3315 if (MINOR (rdev
) >= minor_beg
&& MINOR (rdev
) <= minor_end
)
3317 sprintf (name
+ strlen (name
), "%lu", MINOR (rdev
));
3325 return build_string (name
);
3328 static unsigned long
3329 procfs_get_total_memory (void)
3332 unsigned long retval
= 2 * 1024 * 1024; /* default: 2GB */
3335 fmem
= fopen ("/proc/meminfo", "r");
3339 unsigned long entry_value
;
3340 char entry_name
[20]; /* the longest I saw is 13+1 */
3342 while (!feof (fmem
) && !ferror (fmem
))
3344 if (2 <= fscanf (fmem
, "%s %lu kB\n", entry_name
, &entry_value
)
3345 && strcmp (entry_name
, "MemTotal:") == 0)
3347 retval
= entry_value
;
3358 system_process_attributes (Lisp_Object pid
)
3360 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3364 long clocks_per_sec
;
3366 char procbuf
[1025], *p
, *q
;
3369 const char *cmd
= NULL
;
3370 char *cmdline
= NULL
;
3371 size_t cmdsize
= 0, cmdline_size
;
3373 int proc_id
, ppid
, uid
, gid
, pgrp
, sess
, tty
, tpgid
, thcount
;
3374 unsigned long long utime
, stime
, cutime
, cstime
, start
;
3375 long priority
, nice
, rss
;
3376 unsigned long minflt
, majflt
, cminflt
, cmajflt
, vsize
;
3379 EMACS_TIME tnow
, tstart
, tboot
, telapsed
,ttotal
;
3381 Lisp_Object attrs
= Qnil
;
3382 Lisp_Object cmd_str
, decoded_cmd
, tem
;
3383 struct gcpro gcpro1
, gcpro2
;
3384 EMACS_INT uid_eint
, gid_eint
;
3386 CHECK_NUMBER_OR_FLOAT (pid
);
3387 proc_id
= FLOATP (pid
) ? XFLOAT_DATA (pid
) : XINT (pid
);
3388 sprintf (procfn
, "/proc/%lu", proc_id
);
3389 if (stat (procfn
, &st
) < 0)
3392 GCPRO2 (attrs
, decoded_cmd
);
3396 /* Use of EMACS_INT stops GCC whining about limited range of data type. */
3398 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid_eint
)), attrs
);
3400 pw
= getpwuid (uid
);
3403 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3407 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid_eint
)), attrs
);
3409 gr
= getgrgid (gid
);
3412 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3414 strcpy (fn
, procfn
);
3415 procfn_end
= fn
+ strlen (fn
);
3416 strcpy (procfn_end
, "/stat");
3417 fd
= emacs_open (fn
, O_RDONLY
, 0);
3418 if (fd
>= 0 && (nread
= emacs_read (fd
, procbuf
, sizeof(procbuf
) - 1)) > 0)
3420 procbuf
[nread
] = '\0';
3423 p
= strchr (p
, '(');
3426 q
= strrchr (p
+ 1, ')');
3441 /* Command name is encoded in locale-coding-system; decode it. */
3442 cmd_str
= make_unibyte_string (cmd
, cmdsize
);
3443 decoded_cmd
= code_convert_string_norecord (cmd_str
,
3444 Vlocale_coding_system
, 0);
3445 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3449 EMACS_INT ppid_eint
, pgrp_eint
, sess_eint
, tpgid_eint
, thcount_eint
;
3451 /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */
3452 sscanf (p
, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld",
3453 &c
, &ppid
, &pgrp
, &sess
, &tty
, &tpgid
,
3454 &minflt
, &cminflt
, &majflt
, &cmajflt
,
3455 &utime
, &stime
, &cutime
, &cstime
,
3456 &priority
, &nice
, &thcount
, &start
, &vsize
, &rss
);
3461 state_str
[1] = '\0';
3462 tem
= build_string (state_str
);
3463 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3465 /* Stops GCC whining about limited range of data type. */
3470 thcount_eint
= thcount
;
3471 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (ppid_eint
)), attrs
);
3472 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pgrp_eint
)), attrs
);
3473 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (sess_eint
)), attrs
);
3474 attrs
= Fcons (Fcons (Qttname
, procfs_ttyname (tty
)), attrs
);
3475 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (tpgid_eint
)), attrs
);
3476 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (minflt
)), attrs
);
3477 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (majflt
)), attrs
);
3478 attrs
= Fcons (Fcons (Qcminflt
, make_fixnum_or_float (cminflt
)), attrs
);
3479 attrs
= Fcons (Fcons (Qcmajflt
, make_fixnum_or_float (cmajflt
)), attrs
);
3480 clocks_per_sec
= sysconf (_SC_CLK_TCK
);
3481 if (clocks_per_sec
< 0)
3482 clocks_per_sec
= 100;
3483 attrs
= Fcons (Fcons (Qutime
,
3484 ltime_from_jiffies (utime
, clocks_per_sec
)),
3486 attrs
= Fcons (Fcons (Qstime
,
3487 ltime_from_jiffies (stime
, clocks_per_sec
)),
3489 attrs
= Fcons (Fcons (Qtime
,
3490 ltime_from_jiffies (stime
+utime
, clocks_per_sec
)),
3492 attrs
= Fcons (Fcons (Qcutime
,
3493 ltime_from_jiffies (cutime
, clocks_per_sec
)),
3495 attrs
= Fcons (Fcons (Qcstime
,
3496 ltime_from_jiffies (cstime
, clocks_per_sec
)),
3498 attrs
= Fcons (Fcons (Qctime
,
3499 ltime_from_jiffies (cstime
+cutime
, clocks_per_sec
)),
3501 attrs
= Fcons (Fcons (Qpri
, make_number (priority
)), attrs
);
3502 attrs
= Fcons (Fcons (Qnice
, make_number (nice
)), attrs
);
3503 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (thcount_eint
)), attrs
);
3504 EMACS_GET_TIME (tnow
);
3505 get_up_time (&sec
, &usec
);
3506 EMACS_SET_SECS (telapsed
, sec
);
3507 EMACS_SET_USECS (telapsed
, usec
);
3508 EMACS_SUB_TIME (tboot
, tnow
, telapsed
);
3509 time_from_jiffies (start
, clocks_per_sec
, &sec
, &usec
);
3510 EMACS_SET_SECS (tstart
, sec
);
3511 EMACS_SET_USECS (tstart
, usec
);
3512 EMACS_ADD_TIME (tstart
, tboot
, tstart
);
3513 attrs
= Fcons (Fcons (Qstart
,
3515 ((EMACS_SECS (tstart
) >> 16) & 0xffff),
3517 (EMACS_SECS (tstart
) & 0xffff),
3519 (EMACS_USECS (tstart
)))),
3521 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (vsize
/1024)), attrs
);
3522 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (4*rss
)), attrs
);
3523 EMACS_SUB_TIME (telapsed
, tnow
, tstart
);
3524 attrs
= Fcons (Fcons (Qetime
,
3526 ((EMACS_SECS (telapsed
) >> 16) & 0xffff),
3528 (EMACS_SECS (telapsed
) & 0xffff),
3530 (EMACS_USECS (telapsed
)))),
3532 time_from_jiffies (utime
+ stime
, clocks_per_sec
, &sec
, &usec
);
3533 pcpu
= (sec
+ usec
/ 1000000.0) / (EMACS_SECS (telapsed
) + EMACS_USECS (telapsed
) / 1000000.0);
3536 attrs
= Fcons (Fcons (Qpcpu
, make_float (100 * pcpu
)), attrs
);
3537 pmem
= 4.0 * 100 * rss
/ procfs_get_total_memory ();
3540 attrs
= Fcons (Fcons (Qpmem
, make_float (pmem
)), attrs
);
3547 strcpy (procfn_end
, "/cmdline");
3548 fd
= emacs_open (fn
, O_RDONLY
, 0);
3551 for (cmdline_size
= 0; emacs_read (fd
, &c
, 1) == 1; cmdline_size
++)
3553 if (isspace (c
) || c
== '\\')
3554 cmdline_size
++; /* for later quoting, see below */
3558 cmdline
= xmalloc (cmdline_size
+ 1);
3559 lseek (fd
, 0L, SEEK_SET
);
3561 if ((nread
= read (fd
, cmdline
, cmdline_size
)) >= 0)
3562 cmdline
[nread
++] = '\0';
3565 /* Assigning zero to `nread' makes us skip the following
3566 two loops, assign zero to cmdline_size, and enter the
3567 following `if' clause that handles unknown command
3571 /* We don't want trailing null characters. */
3572 for (p
= cmdline
+ nread
- 1; p
> cmdline
&& !*p
; p
--)
3574 for (p
= cmdline
; p
< cmdline
+ nread
; p
++)
3576 /* Escape-quote whitespace and backslashes. */
3577 if (isspace (*p
) || *p
== '\\')
3579 memmove (p
+ 1, p
, nread
- (p
- cmdline
));
3583 else if (*p
== '\0')
3586 cmdline_size
= nread
;
3593 cmdsize
= strlen (cmd
);
3594 cmdline_size
= cmdsize
+ 2;
3595 cmdline
= xmalloc (cmdline_size
+ 1);
3596 strcpy (cmdline
, "[");
3597 strcat (strncat (cmdline
, cmd
, cmdsize
), "]");
3600 /* Command line is encoded in locale-coding-system; decode it. */
3601 cmd_str
= make_unibyte_string (cmdline
, cmdline_size
);
3602 decoded_cmd
= code_convert_string_norecord (cmd_str
,
3603 Vlocale_coding_system
, 0);
3605 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3612 #elif defined (SOLARIS2) && defined (HAVE_PROCFS)
3614 /* The <procfs.h> header does not like to be included if _LP64 is defined and
3615 __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */
3616 #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
3617 #define PROCFS_FILE_OFFSET_BITS_HACK 1
3618 #undef _FILE_OFFSET_BITS
3620 #define PROCFS_FILE_OFFSET_BITS_HACK 0
3625 #if PROCFS_FILE_OFFSET_BITS_HACK == 1
3626 #define _FILE_OFFSET_BITS 64
3627 #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */
3630 system_process_attributes (Lisp_Object pid
)
3632 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3637 struct psinfo pinfo
;
3640 int proc_id
, uid
, gid
;
3641 Lisp_Object attrs
= Qnil
;
3642 Lisp_Object decoded_cmd
, tem
;
3643 struct gcpro gcpro1
, gcpro2
;
3644 EMACS_INT uid_eint
, gid_eint
;
3646 CHECK_NUMBER_OR_FLOAT (pid
);
3647 proc_id
= FLOATP (pid
) ? XFLOAT_DATA (pid
) : XINT (pid
);
3648 sprintf (procfn
, "/proc/%u", proc_id
);
3649 if (stat (procfn
, &st
) < 0)
3652 GCPRO2 (attrs
, decoded_cmd
);
3656 /* Use of EMACS_INT stops GCC whining about limited range of data type. */
3658 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid_eint
)), attrs
);
3660 pw
= getpwuid (uid
);
3663 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3667 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid_eint
)), attrs
);
3669 gr
= getgrgid (gid
);
3672 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3674 strcpy (fn
, procfn
);
3675 procfn_end
= fn
+ strlen (fn
);
3676 strcpy (procfn_end
, "/psinfo");
3677 fd
= emacs_open (fn
, O_RDONLY
, 0);
3679 && (nread
= read (fd
, (char*)&pinfo
, sizeof(struct psinfo
)) > 0))
3681 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (pinfo
.pr_ppid
)), attrs
);
3682 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pinfo
.pr_pgid
)), attrs
);
3683 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (pinfo
.pr_sid
)), attrs
);
3687 state_str
[0] = pinfo
.pr_lwp
.pr_sname
;
3688 state_str
[1] = '\0';
3689 tem
= build_string (state_str
);
3690 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3693 /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t,
3694 need to get a string from it. */
3696 /* FIXME: missing: Qtpgid */
3708 Are they available? */
3710 attrs
= Fcons (Fcons (Qtime
,
3711 list3 (make_number (pinfo
.pr_time
.tv_sec
>> 16),
3712 make_number (pinfo
.pr_time
.tv_sec
& 0xffff),
3713 make_number (pinfo
.pr_time
.tv_nsec
))),
3716 attrs
= Fcons (Fcons (Qctime
,
3717 list3 (make_number (pinfo
.pr_ctime
.tv_sec
>> 16),
3718 make_number (pinfo
.pr_ctime
.tv_sec
& 0xffff),
3719 make_number (pinfo
.pr_ctime
.tv_nsec
))),
3722 attrs
= Fcons (Fcons (Qpri
, make_number (pinfo
.pr_lwp
.pr_pri
)), attrs
);
3723 attrs
= Fcons (Fcons (Qnice
, make_number (pinfo
.pr_lwp
.pr_nice
)), attrs
);
3724 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (pinfo
.pr_nlwp
)), attrs
);
3726 attrs
= Fcons (Fcons (Qstart
,
3727 list3 (make_number (pinfo
.pr_start
.tv_sec
>> 16),
3728 make_number (pinfo
.pr_start
.tv_sec
& 0xffff),
3729 make_number (pinfo
.pr_start
.tv_nsec
))),
3731 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (pinfo
.pr_size
)), attrs
);
3732 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (pinfo
.pr_rssize
)), attrs
);
3734 /* pr_pctcpu and pr_pctmem are encoded as a fixed point 16 bit number in [0 ... 1]. */
3735 attrs
= Fcons (Fcons (Qpcpu
, (pinfo
.pr_pctcpu
* 100.0) / (double)0x8000), attrs
);
3736 attrs
= Fcons (Fcons (Qpmem
, (pinfo
.pr_pctmem
* 100.0) / (double)0x8000), attrs
);
3739 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_fname
,
3740 strlen (pinfo
.pr_fname
)),
3741 Vlocale_coding_system
, 0);
3742 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3744 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_psargs
,
3745 strlen (pinfo
.pr_psargs
)),
3746 Vlocale_coding_system
, 0);
3747 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3757 /* The WINDOWSNT implementation is on w32.c.
3758 The MSDOS implementation is on dosfns.c. */
3759 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3762 system_process_attributes (Lisp_Object pid
)
3767 #endif /* !defined (WINDOWSNT) */
3770 /* arch-tag: edb43589-4e09-4544-b325-978b5b121dcf
3771 (do not change this comment) */