1 /* Interfaces to system-dependent kernel and library entries.
2 Copyright (C) 1985-1988, 1993-1995, 1999-2012
3 Free Software Foundation, Inc.
5 This file is part of GNU Emacs.
7 GNU Emacs is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
22 #define SYSTIME_INLINE EXTERN_INLINE
29 #endif /* HAVE_PWD_H */
33 #include <allocator.h>
35 #include <careadlinkat.h>
36 #include <ignore-value.h>
40 #include "sysselect.h"
41 #include "blockinput.h"
44 #include <sys/param.h>
45 #include <sys/sysctl.h>
50 #include <sys/resource.h>
56 #define write sys_write
58 #define STDERR_FILENO fileno(GetStdHandle(STD_ERROR_HANDLE))
61 #endif /* not WINDOWSNT */
63 #include <sys/types.h>
67 /* Get SI_SRPC_DOMAIN, if it is available. */
68 #ifdef HAVE_SYS_SYSTEMINFO_H
69 #include <sys/systeminfo.h>
72 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
74 #include <sys/param.h>
83 #ifdef HAVE_SYS_UTSNAME_H
84 #include <sys/utsname.h>
86 #endif /* HAVE_SYS_UTSNAME_H */
91 #include "termhooks.h"
94 #include "dispextern.h"
96 #include "cm.h" /* for reset_sys_modes */
100 /* In process.h which conflicts with the local copy. */
102 int _cdecl
_spawnlp (int, const char *, const char *, ...);
103 int _cdecl
_getpid (void);
106 #include "syssignal.h"
109 static int emacs_get_tty (int, struct emacs_tty
*);
110 static int emacs_set_tty (int, struct emacs_tty
*, int);
112 /* ULLONG_MAX is missing on Red Hat Linux 7.3; see Bug#11781. */
114 #define ULLONG_MAX TYPE_MAXIMUM (unsigned long long int)
117 /* Declare here, including term.h is problematic on some systems. */
118 extern void tputs (const char *, int, int (*)(int));
120 static const int baud_convert
[] =
122 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200,
123 1800, 2400, 4800, 9600, 19200, 38400
127 #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME)
129 /* Return the current working directory. Returns NULL on errors.
130 Any other returned value must be freed with free. This is used
131 only when get_current_dir_name is not defined on the system. */
133 get_current_dir_name (void)
136 char *pwd
= getenv ("PWD");
137 struct stat dotstat
, pwdstat
;
138 /* If PWD is accurate, use it instead of calling getcwd. PWD is
139 sometimes a nicer name, and using it may avoid a fatal error if a
140 parent directory is searchable but not readable. */
142 && (IS_DIRECTORY_SEP (*pwd
) || (*pwd
&& IS_DEVICE_SEP (pwd
[1])))
143 && stat (pwd
, &pwdstat
) == 0
144 && stat (".", &dotstat
) == 0
145 && dotstat
.st_ino
== pwdstat
.st_ino
146 && dotstat
.st_dev
== pwdstat
.st_dev
148 && strlen (pwd
) < MAXPATHLEN
152 buf
= malloc (strlen (pwd
) + 1);
159 size_t buf_size
= 1024;
160 buf
= malloc (buf_size
);
165 if (getcwd (buf
, buf_size
) == buf
)
169 int tmp_errno
= errno
;
175 buf
= realloc (buf
, buf_size
);
185 /* Discard pending input on all input descriptors. */
188 discard_tty_input (void)
191 struct emacs_tty buf
;
196 #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */
197 while (dos_keyread () != -1)
199 #else /* not MSDOS */
201 struct tty_display_info
*tty
;
202 for (tty
= tty_list
; tty
; tty
= tty
->next
)
204 if (tty
->input
) /* Is the device suspended? */
206 emacs_get_tty (fileno (tty
->input
), &buf
);
207 emacs_set_tty (fileno (tty
->input
), &buf
, 0);
211 #endif /* not MSDOS */
212 #endif /* not WINDOWSNT */
218 /* Arrange for character C to be read as the next input from
220 XXX What if we have multiple ttys?
226 if (! FRAME_TERMCAP_P (SELECTED_FRAME ()))
229 /* Should perhaps error if in batch mode */
231 ioctl (fileno (CURTTY()->input
), TIOCSTI
, &c
);
232 #else /* no TIOCSTI */
233 error ("Cannot stuff terminal input characters in this version of Unix");
234 #endif /* no TIOCSTI */
240 init_baud_rate (int fd
)
250 #else /* not DOS_NT */
255 emacs_ospeed
= cfgetospeed (&sg
);
256 #endif /* not DOS_NT */
259 baud_rate
= (emacs_ospeed
< sizeof baud_convert
/ sizeof baud_convert
[0]
260 ? baud_convert
[emacs_ospeed
] : 9600);
269 /* Wait for the subprocess with process id CHILD to terminate or change status.
270 CHILD must be a child process that has not been reaped.
271 If STATUS is non-null, store the waitpid-style exit status into *STATUS
272 and tell wait_reading_process_output that it needs to look around.
273 Use waitpid-style OPTIONS when waiting.
274 If INTERRUPTIBLE, this function is interruptible by a signal.
276 Return CHILD if successful, 0 if no status is available;
277 the latter is possible only when options & NOHANG. */
279 get_child_status (pid_t child
, int *status
, int options
, bool interruptible
)
283 /* Invoke waitpid only with a known process ID; do not invoke
284 waitpid with a nonpositive argument. Otherwise, Emacs might
285 reap an unwanted process by mistake. For example, invoking
286 waitpid (-1, ...) can mess up glib by reaping glib's subprocesses,
287 so that another thread running glib won't find them. */
290 while ((pid
= waitpid (child
, status
, options
)) < 0)
292 /* CHILD must be a child process that has not been reaped, and
293 STATUS and OPTIONS must be valid. */
294 eassert (errno
== EINTR
);
296 /* Note: the MS-Windows emulation of waitpid calls QUIT
302 /* If successful and status is requested, tell wait_reading_process_output
303 that it needs to wake up and look around. */
304 if (pid
&& status
&& input_available_clear_time
)
305 *input_available_clear_time
= make_emacs_time (0, 0);
310 /* Wait for the subprocess with process id CHILD to terminate.
311 CHILD must be a child process that has not been reaped.
312 If STATUS is non-null, store the waitpid-style exit status into *STATUS
313 and tell wait_reading_process_output that it needs to look around.
314 If INTERRUPTIBLE, this function is interruptible by a signal. */
316 wait_for_termination (pid_t child
, int *status
, bool interruptible
)
318 get_child_status (child
, status
, 0, interruptible
);
321 /* Report whether the subprocess with process id CHILD has changed status.
322 Termination counts as a change of status.
323 CHILD must be a child process that has not been reaped.
324 If STATUS is non-null, store the waitpid-style exit status into *STATUS
325 and tell wait_reading_process_output that it needs to look around.
326 Use waitpid-style OPTIONS to check status, but do not wait.
328 Return CHILD if successful, 0 if no status is available because
329 the process's state has not changed. */
331 child_status_changed (pid_t child
, int *status
, int options
)
333 return get_child_status (child
, status
, WNOHANG
| options
, 0);
337 * flush any pending output
338 * (may flush input as well; it does not matter the way we use it)
342 flush_pending_output (int channel
)
344 /* FIXME: maybe this function should be removed */
347 /* Set up the terminal at the other end of a pseudo-terminal that
348 we will be controlling an inferior through.
349 It should not echo or do line-editing, since that is done
350 in Emacs. No padding needed for insertion into an Emacs buffer. */
353 child_setup_tty (int out
)
358 emacs_get_tty (out
, &s
);
359 s
.main
.c_oflag
|= OPOST
; /* Enable output postprocessing */
360 s
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL on output */
362 /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html
363 Some versions of GNU Hurd do not have FFDLY? */
365 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
|FFDLY
);
366 /* No output delays */
368 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
);
369 /* No output delays */
372 s
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
373 s
.main
.c_lflag
|= ISIG
; /* Enable signals */
375 s
.main
.c_iflag
&= ~IUCLC
; /* Disable downcasing on input. */
378 s
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
381 s
.main
.c_oflag
&= ~OLCUC
; /* Disable upcasing on output. */
383 s
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
384 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CSIZE
) | CS8
; /* Don't strip 8th bit */
385 s
.main
.c_cc
[VERASE
] = CDISABLE
; /* disable erase processing */
386 s
.main
.c_cc
[VKILL
] = CDISABLE
; /* disable kill processing */
389 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
392 #ifdef SIGNALS_VIA_CHARACTERS
393 /* the QUIT and INTR character are used in process_send_signal
394 so set them here to something useful. */
395 if (s
.main
.c_cc
[VQUIT
] == CDISABLE
)
396 s
.main
.c_cc
[VQUIT
] = '\\'&037; /* Control-\ */
397 if (s
.main
.c_cc
[VINTR
] == CDISABLE
)
398 s
.main
.c_cc
[VINTR
] = 'C'&037; /* Control-C */
399 #endif /* not SIGNALS_VIA_CHARACTERS */
402 /* Also, PTY overloads NUL and BREAK.
403 don't ignore break, but don't signal either, so it looks like NUL. */
404 s
.main
.c_iflag
&= ~IGNBRK
;
405 s
.main
.c_iflag
&= ~BRKINT
;
406 /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here
407 unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional
408 would force it to 0377. That looks like duplicated code. */
409 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
412 /* We originally enabled ICANON (and set VEOF to 04), and then had
413 process.c send additional EOF chars to flush the output when faced
414 with long lines, but this leads to weird effects when the
415 subprocess has disabled ICANON and ends up seeing those spurious
416 extra EOFs. So we don't send EOFs any more in
417 process.c:send_process. First we tried to disable ICANON by
418 default, so if a subsprocess sets up ICANON, it's his problem (or
419 the Elisp package that talks to it) to deal with lines that are
420 too long. But this disables some features, such as the ability
421 to send EOF signals. So we re-enabled ICANON but there is no
422 more "send eof to flush" going on (which is wrong and unportable
423 in itself). The correct way to handle too much output is to
424 buffer what could not be written and then write it again when
425 select returns ok for writing. This has it own set of
426 problems. Write is now asynchronous, is that a problem? How much
427 do we buffer, and what do we do when that limit is reached? */
429 s
.main
.c_lflag
|= ICANON
; /* Enable line editing and eof processing */
430 s
.main
.c_cc
[VEOF
] = 'D'&037; /* Control-D */
431 #if 0 /* These settings only apply to non-ICANON mode. */
432 s
.main
.c_cc
[VMIN
] = 1;
433 s
.main
.c_cc
[VTIME
] = 0;
436 emacs_set_tty (out
, &s
, 0);
437 #endif /* not WINDOWSNT */
439 #endif /* not MSDOS */
442 /* Record a signal code and the action for it. */
446 struct sigaction action
;
449 static void save_signal_handlers (struct save_signal
*);
450 static void restore_signal_handlers (struct save_signal
*);
452 /* Suspend the Emacs process; give terminal to its superior. */
457 #if defined (SIGTSTP) && !defined (MSDOS)
460 pid_t pgrp
= getpgrp ();
461 EMACS_KILLPG (pgrp
, SIGTSTP
);
464 #else /* No SIGTSTP */
465 /* On a system where suspending is not implemented,
466 instead fork a subshell and let it talk directly to the terminal
470 #endif /* no SIGTSTP */
473 /* Fork a subshell. */
478 #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
480 char oldwd
[MAXPATHLEN
+1]; /* Fixed length is safe on MSDOS. */
484 struct save_signal saved_handlers
[5];
486 unsigned char *volatile str_volatile
= 0;
490 saved_handlers
[0].code
= SIGINT
;
491 saved_handlers
[1].code
= SIGQUIT
;
492 saved_handlers
[2].code
= SIGTERM
;
494 saved_handlers
[3].code
= SIGIO
;
495 saved_handlers
[4].code
= 0;
497 saved_handlers
[3].code
= 0;
500 /* Mentioning current_buffer->buffer would mean including buffer.h,
501 which somehow wedges the hp compiler. So instead... */
503 dir
= intern ("default-directory");
504 if (NILP (Fboundp (dir
)))
506 dir
= Fsymbol_value (dir
);
510 dir
= expand_and_dir_to_file (Funhandled_file_name_directory (dir
), Qnil
);
511 str_volatile
= str
= alloca (SCHARS (dir
) + 2);
513 memcpy (str
, SDATA (dir
), len
);
514 if (str
[len
- 1] != '/') str
[len
++] = '/';
520 save_signal_handlers (saved_handlers
);
524 error ("Can't spawn subshell");
531 #ifdef DOS_NT /* MW, Aug 1993 */
532 getcwd (oldwd
, sizeof oldwd
);
534 sh
= (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
537 sh
= (char *) egetenv ("SHELL");
541 /* Use our buffer's default directory for the subshell. */
543 if (str
&& chdir ((char *) str
) != 0)
546 ignore_value (write (1, "Can't chdir\n", 12));
551 close_process_descs (); /* Close Emacs's pipes/ptys */
553 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
555 char *epwd
= getenv ("PWD");
556 char old_pwd
[MAXPATHLEN
+1+4];
558 /* If PWD is set, pass it with corrected value. */
561 strcpy (old_pwd
, epwd
);
562 if (str
[len
- 1] == '/')
564 setenv ("PWD", str
, 1);
567 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
569 putenv (old_pwd
); /* restore previous value */
571 #else /* not MSDOS */
573 /* Waits for process completion */
574 pid
= _spawnlp (_P_WAIT
, sh
, sh
, NULL
);
575 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
577 write (1, "Can't execute subshell", 22);
578 #else /* not WINDOWSNT */
579 execlp (sh
, sh
, (char *) 0);
580 ignore_value (write (1, "Can't execute subshell", 22));
582 #endif /* not WINDOWSNT */
583 #endif /* not MSDOS */
586 /* Do this now if we did not do it before. */
588 save_signal_handlers (saved_handlers
);
592 wait_for_termination (pid
, &status
, 0);
594 restore_signal_handlers (saved_handlers
);
598 save_signal_handlers (struct save_signal
*saved_handlers
)
600 while (saved_handlers
->code
)
602 struct sigaction action
;
603 emacs_sigaction_init (&action
, SIG_IGN
);
604 sigaction (saved_handlers
->code
, &action
, &saved_handlers
->action
);
610 restore_signal_handlers (struct save_signal
*saved_handlers
)
612 while (saved_handlers
->code
)
614 sigaction (saved_handlers
->code
, &saved_handlers
->action
, 0);
620 static int old_fcntl_flags
[MAXDESC
];
627 old_fcntl_flags
[fd
] = fcntl (fd
, F_GETFL
, 0) & ~FASYNC
;
628 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
] | FASYNC
);
629 interrupts_deferred
= 0;
637 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
]);
650 sigemptyset (&unblocked
);
652 sigaddset (&unblocked
, SIGWINCH
);
654 sigaddset (&unblocked
, SIGIO
);
655 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
657 interrupts_deferred
= 0;
662 unrequest_sigio (void)
670 sigemptyset (&blocked
);
672 sigaddset (&blocked
, SIGWINCH
);
674 sigaddset (&blocked
, SIGIO
);
675 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
676 interrupts_deferred
= 1;
684 signal (SIGIO
, SIG_IGN
);
689 /* Saving and restoring the process group of Emacs's terminal. */
691 /* The process group of which Emacs was a member when it initially
694 If Emacs was in its own process group (i.e. inherited_pgroup ==
695 getpid ()), then we know we're running under a shell with job
696 control (Emacs would never be run as part of a pipeline).
699 If Emacs was not in its own process group, then we know we're
700 running under a shell (or a caller) that doesn't know how to
701 separate itself from Emacs (like sh). Emacs must be in its own
702 process group in order to receive SIGIO correctly. In this
703 situation, we put ourselves in our own pgroup, forcibly set the
704 tty's pgroup to our pgroup, and make sure to restore and reinstate
705 the tty's pgroup just like any other terminal setting. If
706 inherited_group was not the tty's pgroup, then we'll get a
707 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
708 it goes foreground in the future, which is what should happen. */
710 static pid_t inherited_pgroup
;
713 init_foreground_group (void)
715 pid_t pgrp
= getpgrp ();
716 inherited_pgroup
= getpid () == pgrp
? 0 : pgrp
;
719 /* Safely set a controlling terminal FD's process group to PGID.
720 If we are not in the foreground already, POSIX requires tcsetpgrp
721 to deliver a SIGTTOU signal, which would stop us. This is an
722 annoyance, so temporarily ignore the signal.
724 In practice, platforms lacking SIGTTOU also lack tcsetpgrp, so
725 skip all this unless SIGTTOU is defined. */
727 tcsetpgrp_without_stopping (int fd
, pid_t pgid
)
730 signal_handler_t handler
;
732 handler
= signal (SIGTTOU
, SIG_IGN
);
733 tcsetpgrp (fd
, pgid
);
734 signal (SIGTTOU
, handler
);
739 /* Split off the foreground process group to Emacs alone. When we are
740 in the foreground, but not started in our own process group,
741 redirect the tty device handle FD to point to our own process
742 group. FD must be the file descriptor of the controlling tty. */
744 narrow_foreground_group (int fd
)
746 if (inherited_pgroup
&& setpgid (0, 0) == 0)
747 tcsetpgrp_without_stopping (fd
, getpid ());
750 /* Set the tty to our original foreground group. */
752 widen_foreground_group (int fd
)
754 if (inherited_pgroup
&& setpgid (0, inherited_pgroup
) == 0)
755 tcsetpgrp_without_stopping (fd
, inherited_pgroup
);
758 /* Getting and setting emacs_tty structures. */
760 /* Set *TC to the parameters associated with the terminal FD.
761 Return zero if all's well, or -1 if we ran into an error we
762 couldn't deal with. */
764 emacs_get_tty (int fd
, struct emacs_tty
*settings
)
766 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
768 /* We have those nifty POSIX tcmumbleattr functions. */
769 memset (&settings
->main
, 0, sizeof (settings
->main
));
770 if (tcgetattr (fd
, &settings
->main
) < 0)
774 /* We have survived the tempest. */
779 /* Set the parameters of the tty on FD according to the contents of
780 *SETTINGS. If FLUSHP is non-zero, we discard input.
781 Return 0 if all went well, and -1 if anything failed. */
784 emacs_set_tty (int fd
, struct emacs_tty
*settings
, int flushp
)
786 /* Set the primary parameters - baud rate, character size, etcetera. */
789 /* We have those nifty POSIX tcmumbleattr functions.
790 William J. Smith <wjs@wiis.wang.com> writes:
791 "POSIX 1003.1 defines tcsetattr to return success if it was
792 able to perform any of the requested actions, even if some
793 of the requested actions could not be performed.
794 We must read settings back to ensure tty setup properly.
795 AIX requires this to keep tty from hanging occasionally." */
796 /* This make sure that we don't loop indefinitely in here. */
797 for (i
= 0 ; i
< 10 ; i
++)
798 if (tcsetattr (fd
, flushp
? TCSAFLUSH
: TCSADRAIN
, &settings
->main
) < 0)
809 memset (&new, 0, sizeof (new));
810 /* Get the current settings, and see if they're what we asked for. */
811 tcgetattr (fd
, &new);
812 /* We cannot use memcmp on the whole structure here because under
813 * aix386 the termios structure has some reserved field that may
816 if ( new.c_iflag
== settings
->main
.c_iflag
817 && new.c_oflag
== settings
->main
.c_oflag
818 && new.c_cflag
== settings
->main
.c_cflag
819 && new.c_lflag
== settings
->main
.c_lflag
820 && memcmp (new.c_cc
, settings
->main
.c_cc
, NCCS
) == 0)
827 /* We have survived the tempest. */
834 static int old_fcntl_owner
[MAXDESC
];
835 #endif /* F_SETOWN */
837 /* This may also be defined in stdio,
838 but if so, this does no harm,
839 and using the same name avoids wasting the other one's space. */
842 unsigned char _sobuf
[BUFSIZ
+8];
847 /* Initialize the terminal mode on all tty devices that are currently
851 init_all_sys_modes (void)
853 struct tty_display_info
*tty
;
854 for (tty
= tty_list
; tty
; tty
= tty
->next
)
855 init_sys_modes (tty
);
858 /* Initialize the terminal mode on the given tty device. */
861 init_sys_modes (struct tty_display_info
*tty_out
)
863 struct emacs_tty tty
;
864 Lisp_Object terminal
;
866 Vtty_erase_char
= Qnil
;
871 if (!tty_out
->output
)
872 return; /* The tty is suspended. */
874 narrow_foreground_group (fileno (tty_out
->input
));
876 if (! tty_out
->old_tty
)
877 tty_out
->old_tty
= xmalloc (sizeof *tty_out
->old_tty
);
879 emacs_get_tty (fileno (tty_out
->input
), tty_out
->old_tty
);
881 tty
= *tty_out
->old_tty
;
883 #if !defined (DOS_NT)
884 XSETINT (Vtty_erase_char
, tty
.main
.c_cc
[VERASE
]);
886 tty
.main
.c_iflag
|= (IGNBRK
); /* Ignore break condition */
887 tty
.main
.c_iflag
&= ~ICRNL
; /* Disable map of CR to NL on input */
888 #ifdef INLCR /* I'm just being cautious,
889 since I can't check how widespread INLCR is--rms. */
890 tty
.main
.c_iflag
&= ~INLCR
; /* Disable map of NL to CR on input */
893 tty
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
895 tty
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
896 tty
.main
.c_lflag
&= ~ICANON
; /* Disable erase/kill processing */
898 tty
.main
.c_lflag
&= ~IEXTEN
; /* Disable other editing characters. */
900 tty
.main
.c_lflag
|= ISIG
; /* Enable signals */
901 if (tty_out
->flow_control
)
903 tty
.main
.c_iflag
|= IXON
; /* Enable start/stop output control */
905 tty
.main
.c_iflag
&= ~IXANY
;
909 tty
.main
.c_iflag
&= ~IXON
; /* Disable start/stop output control */
910 tty
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL
912 tty
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
914 if (tty_out
->meta_key
)
916 tty
.main
.c_cflag
|= CS8
; /* allow 8th bit on input */
917 tty
.main
.c_cflag
&= ~PARENB
;/* Don't check parity */
921 XSETTERMINAL(terminal
, tty_out
->terminal
);
922 if (!NILP (Fcontrolling_tty_p (terminal
)))
924 tty
.main
.c_cc
[VINTR
] = quit_char
; /* C-g (usually) gives SIGINT */
925 /* Set up C-g for both SIGQUIT and SIGINT.
926 We don't know which we will get, but we handle both alike
927 so which one it really gives us does not matter. */
928 tty
.main
.c_cc
[VQUIT
] = quit_char
;
932 /* We normally don't get interrupt or quit signals from tty
933 devices other than our controlling terminal; therefore,
934 we must handle C-g as normal input. Unfortunately, this
935 means that the interrupt and quit feature must be
936 disabled on secondary ttys, or we would not even see the
939 Note that even though emacsclient could have special code
940 to pass SIGINT to Emacs, we should _not_ enable
941 interrupt/quit keys for emacsclient frames. This means
942 that we can't break out of loops in C code from a
943 secondary tty frame, but we can always decide what
944 display the C-g came from, which is more important from a
945 usability point of view. (Consider the case when two
946 people work together using the same Emacs instance.) */
947 tty
.main
.c_cc
[VINTR
] = CDISABLE
;
948 tty
.main
.c_cc
[VQUIT
] = CDISABLE
;
950 tty
.main
.c_cc
[VMIN
] = 1; /* Input should wait for at least 1 char */
951 tty
.main
.c_cc
[VTIME
] = 0; /* no matter how long that takes. */
953 tty
.main
.c_cc
[VSWTCH
] = CDISABLE
; /* Turn off shell layering use
958 tty
.main
.c_cc
[VSUSP
] = CDISABLE
; /* Turn off handling of C-z. */
961 tty
.main
.c_cc
[V_DSUSP
] = CDISABLE
; /* Turn off handling of C-y. */
963 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
964 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
967 tty
.main
.c_cc
[VLNEXT
] = CDISABLE
;
970 tty
.main
.c_cc
[VREPRINT
] = CDISABLE
;
971 #endif /* VREPRINT */
973 tty
.main
.c_cc
[VWERASE
] = CDISABLE
;
976 tty
.main
.c_cc
[VDISCARD
] = CDISABLE
;
977 #endif /* VDISCARD */
979 if (tty_out
->flow_control
)
982 tty
.main
.c_cc
[VSTART
] = '\021';
985 tty
.main
.c_cc
[VSTOP
] = '\023';
991 tty
.main
.c_cc
[VSTART
] = CDISABLE
;
994 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
999 tty
.main
.c_cc
[VSTRT
] = CDISABLE
;
1000 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1001 tty
.main
.c_cc
[VSUSP
] = CDISABLE
;
1002 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1003 if (tty_out
->flow_control
)
1006 tty
.main
.c_cc
[VSTART
] = '\021';
1009 tty
.main
.c_cc
[VSTOP
] = '\023';
1012 /* Also, PTY overloads NUL and BREAK.
1013 don't ignore break, but don't signal either, so it looks like NUL.
1014 This really serves a purpose only if running in an XTERM window
1015 or via TELNET or the like, but does no harm elsewhere. */
1016 tty
.main
.c_iflag
&= ~IGNBRK
;
1017 tty
.main
.c_iflag
&= ~BRKINT
;
1019 #endif /* not DOS_NT */
1021 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
1022 if (!tty_out
->term_initted
)
1023 internal_terminal_init ();
1024 dos_ttraw (tty_out
);
1027 emacs_set_tty (fileno (tty_out
->input
), &tty
, 0);
1029 /* This code added to insure that, if flow-control is not to be used,
1030 we have an unlocked terminal at the start. */
1033 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TCXONC
, 1);
1036 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TIOCSTART
, 0);
1039 #if !defined (DOS_NT)
1041 if (!tty_out
->flow_control
) tcflow (fileno (tty_out
->input
), TCOON
);
1046 if (interrupt_input
)
1048 old_fcntl_owner
[fileno (tty_out
->input
)] =
1049 fcntl (fileno (tty_out
->input
), F_GETOWN
, 0);
1050 fcntl (fileno (tty_out
->input
), F_SETOWN
, getpid ());
1051 init_sigio (fileno (tty_out
->input
));
1053 if (gpm_tty
== tty_out
)
1055 /* Arrange for mouse events to give us SIGIO signals. */
1056 fcntl (gpm_fd
, F_SETOWN
, getpid ());
1057 fcntl (gpm_fd
, F_SETFL
, fcntl (gpm_fd
, F_GETFL
, 0) | O_NONBLOCK
);
1058 init_sigio (gpm_fd
);
1060 #endif /* HAVE_GPM */
1062 #endif /* F_GETOWN */
1065 /* This symbol is defined on recent USG systems.
1066 Someone says without this call USG won't really buffer the file
1067 even with a call to setbuf. */
1068 setvbuf (tty_out
->output
, (char *) _sobuf
, _IOFBF
, sizeof _sobuf
);
1070 setbuf (tty_out
->output
, (char *) _sobuf
);
1073 if (tty_out
->terminal
->set_terminal_modes_hook
)
1074 tty_out
->terminal
->set_terminal_modes_hook (tty_out
->terminal
);
1076 if (!tty_out
->term_initted
)
1078 Lisp_Object tail
, frame
;
1079 FOR_EACH_FRAME (tail
, frame
)
1081 /* XXX This needs to be revised. */
1082 if (FRAME_TERMCAP_P (XFRAME (frame
))
1083 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1084 init_frame_faces (XFRAME (frame
));
1088 if (tty_out
->term_initted
&& no_redraw_on_reenter
)
1090 /* We used to call "direct_output_forward_char(0)" here,
1091 but it's not clear why, since it may not do anything anyway. */
1095 Lisp_Object tail
, frame
;
1097 FOR_EACH_FRAME (tail
, frame
)
1099 if ((FRAME_TERMCAP_P (XFRAME (frame
))
1100 || FRAME_MSDOS_P (XFRAME (frame
)))
1101 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1102 FRAME_GARBAGED_P (XFRAME (frame
)) = 1;
1106 tty_out
->term_initted
= 1;
1109 /* Return nonzero if safe to use tabs in output.
1110 At the time this is called, init_sys_modes has not been done yet. */
1113 tabs_safe_p (int fd
)
1115 struct emacs_tty etty
;
1117 emacs_get_tty (fd
, &etty
);
1120 return ((etty
.main
.c_oflag
& TABDLY
) != TAB3
);
1121 #else /* not TABDLY */
1123 #endif /* not TABDLY */
1129 /* Get terminal size from system.
1130 Store number of lines into *HEIGHTP and width into *WIDTHP.
1131 We store 0 if there's no valid information. */
1134 get_tty_size (int fd
, int *widthp
, int *heightp
)
1136 #if defined TIOCGWINSZ
1139 struct winsize size
;
1141 if (ioctl (fd
, TIOCGWINSZ
, &size
) == -1)
1142 *widthp
= *heightp
= 0;
1145 *widthp
= size
.ws_col
;
1146 *heightp
= size
.ws_row
;
1149 #elif defined TIOCGSIZE
1151 /* SunOS - style. */
1152 struct ttysize size
;
1154 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1155 *widthp
= *heightp
= 0;
1158 *widthp
= size
.ts_cols
;
1159 *heightp
= size
.ts_lines
;
1162 #elif defined WINDOWSNT
1164 CONSOLE_SCREEN_BUFFER_INFO info
;
1165 if (GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE
), &info
))
1167 *widthp
= info
.srWindow
.Right
- info
.srWindow
.Left
+ 1;
1168 *heightp
= info
.srWindow
.Bottom
- info
.srWindow
.Top
+ 1;
1171 *widthp
= *heightp
= 0;
1175 *widthp
= ScreenCols ();
1176 *heightp
= ScreenRows ();
1178 #else /* system doesn't know size */
1186 /* Set the logical window size associated with descriptor FD
1187 to HEIGHT and WIDTH. This is used mainly with ptys. */
1190 set_window_size (int fd
, int height
, int width
)
1195 struct winsize size
;
1196 size
.ws_row
= height
;
1197 size
.ws_col
= width
;
1199 if (ioctl (fd
, TIOCSWINSZ
, &size
) == -1)
1200 return 0; /* error */
1207 /* SunOS - style. */
1208 struct ttysize size
;
1209 size
.ts_lines
= height
;
1210 size
.ts_cols
= width
;
1212 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1218 #endif /* not SunOS-style */
1219 #endif /* not BSD-style */
1224 /* Prepare all terminal devices for exiting Emacs. */
1227 reset_all_sys_modes (void)
1229 struct tty_display_info
*tty
;
1230 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1231 reset_sys_modes (tty
);
1234 /* Prepare the terminal for closing it; move the cursor to the
1235 bottom of the frame, turn off interrupt-driven I/O, etc. */
1238 reset_sys_modes (struct tty_display_info
*tty_out
)
1245 if (!tty_out
->term_initted
)
1248 if (!tty_out
->output
)
1249 return; /* The tty is suspended. */
1251 /* Go to and clear the last line of the terminal. */
1253 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1255 /* Code adapted from tty_clear_end_of_line. */
1256 if (tty_out
->TS_clr_line
)
1258 emacs_tputs (tty_out
, tty_out
->TS_clr_line
, 1, cmputc
);
1261 { /* have to do it the hard way */
1263 tty_turn_off_insert (tty_out
);
1265 for (i
= curX (tty_out
); i
< FrameCols (tty_out
) - 1; i
++)
1267 fputc (' ', tty_out
->output
);
1271 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1272 fflush (tty_out
->output
);
1274 if (tty_out
->terminal
->reset_terminal_modes_hook
)
1275 tty_out
->terminal
->reset_terminal_modes_hook (tty_out
->terminal
);
1278 /* Avoid possible loss of output when changing terminal modes. */
1279 fsync (fileno (tty_out
->output
));
1284 if (interrupt_input
)
1286 reset_sigio (fileno (tty_out
->input
));
1287 fcntl (fileno (tty_out
->input
), F_SETOWN
,
1288 old_fcntl_owner
[fileno (tty_out
->input
)]);
1290 #endif /* F_SETOWN */
1291 fcntl (fileno (tty_out
->input
), F_SETFL
,
1292 fcntl (fileno (tty_out
->input
), F_GETFL
, 0) & ~O_NONBLOCK
);
1295 if (tty_out
->old_tty
)
1296 while (emacs_set_tty (fileno (tty_out
->input
),
1297 tty_out
->old_tty
, 0) < 0 && errno
== EINTR
)
1300 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
1304 widen_foreground_group (fileno (tty_out
->input
));
1309 /* Set up the proper status flags for use of a pty. */
1314 /* I'm told that TOICREMOTE does not mean control chars
1315 "can't be sent" but rather that they don't have
1316 input-editing or signaling effects.
1317 That should be good, because we have other ways
1318 to do those things in Emacs.
1319 However, telnet mode seems not to work on 4.2.
1320 So TIOCREMOTE is turned off now. */
1322 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
1323 will hang. In particular, the "timeout" feature (which
1324 causes a read to return if there is no data available)
1325 does this. Also it is known that telnet mode will hang
1326 in such a way that Emacs must be stopped (perhaps this
1327 is the same problem).
1329 If TIOCREMOTE is turned off, then there is a bug in
1330 hp-ux which sometimes loses data. Apparently the
1331 code which blocks the master process when the internal
1332 buffer fills up does not work. Other than this,
1333 though, everything else seems to work fine.
1335 Since the latter lossage is more benign, we may as well
1336 lose that way. -- cph */
1338 #if defined (UNIX98_PTYS)
1341 ioctl (fd
, FIONBIO
, &on
);
1346 #endif /* HAVE_PTYS */
1349 #include <sys/socket.h>
1351 #endif /* HAVE_SOCKETS */
1354 #ifndef HAVE_H_ERRNO
1357 #endif /* TRY_AGAIN */
1360 init_system_name (void)
1362 #ifndef HAVE_GETHOSTNAME
1365 Vsystem_name
= build_string (uts
.nodename
);
1366 #else /* HAVE_GETHOSTNAME */
1367 unsigned int hostname_size
= 256;
1368 char *hostname
= alloca (hostname_size
);
1370 /* Try to get the host name; if the buffer is too short, try
1371 again. Apparently, the only indication gethostname gives of
1372 whether the buffer was large enough is the presence or absence
1373 of a '\0' in the string. Eech. */
1376 gethostname (hostname
, hostname_size
- 1);
1377 hostname
[hostname_size
- 1] = '\0';
1379 /* Was the buffer large enough for the '\0'? */
1380 if (strlen (hostname
) < hostname_size
- 1)
1383 hostname_size
<<= 1;
1384 hostname
= alloca (hostname_size
);
1387 /* Turn the hostname into the official, fully-qualified hostname.
1388 Don't do this if we're going to dump; this can confuse system
1389 libraries on some machines and make the dumped emacs core dump. */
1392 #endif /* not CANNOT_DUMP */
1393 if (! strchr (hostname
, '.'))
1396 #ifdef HAVE_GETADDRINFO
1397 struct addrinfo
*res
;
1398 struct addrinfo hints
;
1401 memset (&hints
, 0, sizeof (hints
));
1402 hints
.ai_socktype
= SOCK_STREAM
;
1403 hints
.ai_flags
= AI_CANONNAME
;
1405 for (count
= 0;; count
++)
1407 if ((ret
= getaddrinfo (hostname
, NULL
, &hints
, &res
)) == 0
1408 || ret
!= EAI_AGAIN
)
1413 Fsleep_for (make_number (1), Qnil
);
1418 struct addrinfo
*it
= res
;
1421 char *fqdn
= it
->ai_canonname
;
1422 if (fqdn
&& strchr (fqdn
, '.')
1423 && strcmp (fqdn
, "localhost.localdomain") != 0)
1429 hostname
= alloca (strlen (it
->ai_canonname
) + 1);
1430 strcpy (hostname
, it
->ai_canonname
);
1434 #else /* !HAVE_GETADDRINFO */
1436 for (count
= 0;; count
++)
1442 hp
= gethostbyname (hostname
);
1444 if (! (hp
== 0 && h_errno
== TRY_AGAIN
))
1451 Fsleep_for (make_number (1), Qnil
);
1456 char *fqdn
= (char *) hp
->h_name
;
1458 if (!strchr (fqdn
, '.'))
1460 /* We still don't have a fully qualified domain name.
1461 Try to find one in the list of alternate names */
1462 char **alias
= hp
->h_aliases
;
1464 && (!strchr (*alias
, '.')
1465 || !strcmp (*alias
, "localhost.localdomain")))
1472 #endif /* !HAVE_GETADDRINFO */
1474 #endif /* HAVE_SOCKETS */
1475 Vsystem_name
= build_string (hostname
);
1476 #endif /* HAVE_GETHOSTNAME */
1479 for (p
= SDATA (Vsystem_name
); *p
; p
++)
1480 if (*p
== ' ' || *p
== '\t')
1485 sigset_t empty_mask
;
1487 static struct sigaction process_fatal_action
;
1490 emacs_sigaction_flags (void)
1493 /* SA_RESTART causes interruptible functions with timeouts (e.g.,
1494 'select') to reset their timeout on some platforms (e.g.,
1495 HP-UX 11), which is not what we want. Also, when Emacs is
1496 interactive, we don't want SA_RESTART because we need to poll
1497 for pending input so we need long-running syscalls to be interrupted
1498 after a signal that sets pending_signals.
1500 Non-interactive keyboard input goes through stdio, where we
1501 always want restartable system calls. */
1508 /* Store into *ACTION a signal action suitable for Emacs, with handler
1511 emacs_sigaction_init (struct sigaction
*action
, signal_handler_t handler
)
1513 sigemptyset (&action
->sa_mask
);
1515 /* When handling a signal, block nonfatal system signals that are caught
1516 by Emacs. This makes race conditions less likely. */
1517 sigaddset (&action
->sa_mask
, SIGALRM
);
1519 sigaddset (&action
->sa_mask
, SIGCHLD
);
1522 sigaddset (&action
->sa_mask
, SIGDANGER
);
1524 #ifdef PROFILER_CPU_SUPPORT
1525 sigaddset (&action
->sa_mask
, SIGPROF
);
1528 sigaddset (&action
->sa_mask
, SIGWINCH
);
1530 if (! noninteractive
)
1532 sigaddset (&action
->sa_mask
, SIGINT
);
1533 sigaddset (&action
->sa_mask
, SIGQUIT
);
1535 sigaddset (&action
->sa_mask
, SIGIO
);
1539 if (! IEEE_FLOATING_POINT
)
1540 sigaddset (&action
->sa_mask
, SIGFPE
);
1542 action
->sa_handler
= handler
;
1543 action
->sa_flags
= emacs_sigaction_flags ();
1546 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1547 static pthread_t main_thread
;
1550 /* SIG has arrived at the current process. Deliver it to the main
1551 thread, which should handle it with HANDLER.
1553 If we are on the main thread, handle the signal SIG with HANDLER.
1554 Otherwise, redirect the signal to the main thread, blocking it from
1555 this thread. POSIX says any thread can receive a signal that is
1556 associated with a process, process group, or asynchronous event.
1557 On GNU/Linux that is not true, but for other systems (FreeBSD at
1560 deliver_process_signal (int sig
, signal_handler_t handler
)
1562 /* Preserve errno, to avoid race conditions with signal handlers that
1563 might change errno. Races can occur even in single-threaded hosts. */
1564 int old_errno
= errno
;
1566 bool on_main_thread
= true;
1567 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1568 if (! pthread_equal (pthread_self (), main_thread
))
1571 sigemptyset (&blocked
);
1572 sigaddset (&blocked
, sig
);
1573 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
1574 pthread_kill (main_thread
, sig
);
1575 on_main_thread
= false;
1584 /* Static location to save a fatal backtrace in a thread.
1585 FIXME: If two subsidiary threads fail simultaneously, the resulting
1586 backtrace may be garbage. */
1587 enum { BACKTRACE_LIMIT_MAX
= 500 };
1588 static void *thread_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
1589 static int thread_backtrace_npointers
;
1591 /* SIG has arrived at the current thread.
1592 If we are on the main thread, handle the signal SIG with HANDLER.
1593 Otherwise, this is a fatal error in the handling thread. */
1595 deliver_thread_signal (int sig
, signal_handler_t handler
)
1597 int old_errno
= errno
;
1599 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1600 if (! pthread_equal (pthread_self (), main_thread
))
1602 thread_backtrace_npointers
1603 = backtrace (thread_backtrace_buffer
, BACKTRACE_LIMIT_MAX
);
1604 sigaction (sig
, &process_fatal_action
, 0);
1605 pthread_kill (main_thread
, sig
);
1607 /* Avoid further damage while the main thread is exiting. */
1609 sigsuspend (&empty_mask
);
1617 #if !HAVE_DECL_SYS_SIGLIST
1619 # ifdef _sys_siglist
1620 # define sys_siglist _sys_siglist
1622 # define sys_siglist my_sys_siglist
1623 static char const *sys_siglist
[NSIG
];
1628 # define sys_siglist_entries _sys_nsig
1630 # define sys_siglist_entries NSIG
1633 /* Handle bus errors, invalid instruction, etc. */
1635 handle_fatal_signal (int sig
)
1637 terminate_due_to_signal (sig
, 40);
1641 deliver_fatal_signal (int sig
)
1643 deliver_process_signal (sig
, handle_fatal_signal
);
1647 deliver_fatal_thread_signal (int sig
)
1649 deliver_thread_signal (sig
, handle_fatal_signal
);
1652 static _Noreturn
void
1653 handle_arith_signal (int sig
)
1655 pthread_sigmask (SIG_SETMASK
, &empty_mask
, 0);
1656 xsignal0 (Qarith_error
);
1660 deliver_arith_signal (int sig
)
1662 deliver_thread_signal (sig
, handle_arith_signal
);
1665 /* Treat SIG as a terminating signal, unless it is already ignored and
1666 we are in --batch mode. Among other things, this makes nohup work. */
1668 maybe_fatal_sig (int sig
)
1670 bool catch_sig
= !noninteractive
;
1673 struct sigaction old_action
;
1674 sigaction (sig
, 0, &old_action
);
1675 catch_sig
= old_action
.sa_handler
!= SIG_IGN
;
1678 sigaction (sig
, &process_fatal_action
, 0);
1682 init_signals (bool dumping
)
1684 struct sigaction thread_fatal_action
;
1685 struct sigaction action
;
1687 sigemptyset (&empty_mask
);
1689 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1690 main_thread
= pthread_self ();
1693 #if !HAVE_DECL_SYS_SIGLIST && !defined _sys_siglist
1696 sys_siglist
[SIGABRT
] = "Aborted";
1698 sys_siglist
[SIGAIO
] = "LAN I/O interrupt";
1701 sys_siglist
[SIGALRM
] = "Alarm clock";
1704 sys_siglist
[SIGBUS
] = "Bus error";
1707 sys_siglist
[SIGCLD
] = "Child status changed";
1710 sys_siglist
[SIGCHLD
] = "Child status changed";
1713 sys_siglist
[SIGCONT
] = "Continued";
1716 sys_siglist
[SIGDANGER
] = "Swap space dangerously low";
1719 sys_siglist
[SIGDGNOTIFY
] = "Notification message in queue";
1722 sys_siglist
[SIGEMT
] = "Emulation trap";
1724 sys_siglist
[SIGFPE
] = "Arithmetic exception";
1726 sys_siglist
[SIGFREEZE
] = "SIGFREEZE";
1729 sys_siglist
[SIGGRANT
] = "Monitor mode granted";
1732 sys_siglist
[SIGHUP
] = "Hangup";
1734 sys_siglist
[SIGILL
] = "Illegal instruction";
1735 sys_siglist
[SIGINT
] = "Interrupt";
1737 sys_siglist
[SIGIO
] = "I/O possible";
1740 sys_siglist
[SIGIOINT
] = "I/O intervention required";
1743 sys_siglist
[SIGIOT
] = "IOT trap";
1746 sys_siglist
[SIGKILL
] = "Killed";
1749 sys_siglist
[SIGLOST
] = "Resource lost";
1752 sys_siglist
[SIGLWP
] = "SIGLWP";
1755 sys_siglist
[SIGMSG
] = "Monitor mode data available";
1758 sys_siglist
[SIGWIND
] = "SIGPHONE";
1761 sys_siglist
[SIGPIPE
] = "Broken pipe";
1764 sys_siglist
[SIGPOLL
] = "Pollable event occurred";
1767 sys_siglist
[SIGPROF
] = "Profiling timer expired";
1770 sys_siglist
[SIGPTY
] = "PTY I/O interrupt";
1773 sys_siglist
[SIGPWR
] = "Power-fail restart";
1776 sys_siglist
[SIGQUIT
] = "Quit";
1779 sys_siglist
[SIGRETRACT
] = "Need to relinquish monitor mode";
1782 sys_siglist
[SIGSAK
] = "Secure attention";
1784 sys_siglist
[SIGSEGV
] = "Segmentation violation";
1786 sys_siglist
[SIGSOUND
] = "Sound completed";
1789 sys_siglist
[SIGSTOP
] = "Stopped (signal)";
1792 sys_siglist
[SIGSTP
] = "Stopped (user)";
1795 sys_siglist
[SIGSYS
] = "Bad argument to system call";
1797 sys_siglist
[SIGTERM
] = "Terminated";
1799 sys_siglist
[SIGTHAW
] = "SIGTHAW";
1802 sys_siglist
[SIGTRAP
] = "Trace/breakpoint trap";
1805 sys_siglist
[SIGTSTP
] = "Stopped (user)";
1808 sys_siglist
[SIGTTIN
] = "Stopped (tty input)";
1811 sys_siglist
[SIGTTOU
] = "Stopped (tty output)";
1814 sys_siglist
[SIGURG
] = "Urgent I/O condition";
1817 sys_siglist
[SIGUSR1
] = "User defined signal 1";
1820 sys_siglist
[SIGUSR2
] = "User defined signal 2";
1823 sys_siglist
[SIGVTALRM
] = "Virtual timer expired";
1826 sys_siglist
[SIGWAITING
] = "Process's LWPs are blocked";
1829 sys_siglist
[SIGWINCH
] = "Window size changed";
1832 sys_siglist
[SIGWIND
] = "SIGWIND";
1835 sys_siglist
[SIGXCPU
] = "CPU time limit exceeded";
1838 sys_siglist
[SIGXFSZ
] = "File size limit exceeded";
1841 #endif /* !HAVE_DECL_SYS_SIGLIST && !_sys_siglist */
1843 /* Don't alter signal handlers if dumping. On some machines,
1844 changing signal handlers sets static data that would make signals
1845 fail to work right when the dumped Emacs is run. */
1849 sigfillset (&process_fatal_action
.sa_mask
);
1850 process_fatal_action
.sa_handler
= deliver_fatal_signal
;
1851 process_fatal_action
.sa_flags
= emacs_sigaction_flags ();
1853 sigfillset (&thread_fatal_action
.sa_mask
);
1854 thread_fatal_action
.sa_handler
= deliver_fatal_thread_signal
;
1855 thread_fatal_action
.sa_flags
= process_fatal_action
.sa_flags
;
1857 /* SIGINT may need special treatment on MS-Windows. See
1858 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1859 Please update the doc of kill-emacs, kill-emacs-hook, and
1860 NEWS if you change this. */
1862 maybe_fatal_sig (SIGHUP
);
1863 maybe_fatal_sig (SIGINT
);
1864 maybe_fatal_sig (SIGTERM
);
1866 /* Emacs checks for write errors, so it can safely ignore SIGPIPE.
1867 However, in batch mode leave SIGPIPE alone, as that causes Emacs
1868 to behave more like typical batch applications do. */
1869 if (! noninteractive
)
1870 signal (SIGPIPE
, SIG_IGN
);
1872 sigaction (SIGQUIT
, &process_fatal_action
, 0);
1873 sigaction (SIGILL
, &thread_fatal_action
, 0);
1874 sigaction (SIGTRAP
, &thread_fatal_action
, 0);
1876 /* Typically SIGFPE is thread-specific and is fatal, like SIGILL.
1877 But on a non-IEEE host SIGFPE can come from a trap in the Lisp
1878 interpreter's floating point operations, so treat SIGFPE as an
1879 arith-error if it arises in the main thread. */
1880 if (IEEE_FLOATING_POINT
)
1881 sigaction (SIGFPE
, &thread_fatal_action
, 0);
1884 emacs_sigaction_init (&action
, deliver_arith_signal
);
1885 sigaction (SIGFPE
, &action
, 0);
1889 add_user_signal (SIGUSR1
, "sigusr1");
1892 add_user_signal (SIGUSR2
, "sigusr2");
1894 sigaction (SIGABRT
, &thread_fatal_action
, 0);
1896 sigaction (SIGPRE
, &thread_fatal_action
, 0);
1899 sigaction (SIGORE
, &thread_fatal_action
, 0);
1902 sigaction (SIGUME
, &thread_fatal_action
, 0);
1905 sigaction (SIGDLK
, &process_fatal_action
, 0);
1908 sigaction (SIGCPULIM
, &process_fatal_action
, 0);
1911 sigaction (SIGIOT
, &thread_fatal_action
, 0);
1914 sigaction (SIGEMT
, &thread_fatal_action
, 0);
1917 sigaction (SIGBUS
, &thread_fatal_action
, 0);
1919 sigaction (SIGSEGV
, &thread_fatal_action
, 0);
1921 sigaction (SIGSYS
, &thread_fatal_action
, 0);
1923 sigaction (SIGTERM
, &process_fatal_action
, 0);
1925 signal (SIGPROF
, SIG_IGN
);
1928 sigaction (SIGVTALRM
, &process_fatal_action
, 0);
1931 sigaction (SIGXCPU
, &process_fatal_action
, 0);
1934 sigaction (SIGXFSZ
, &process_fatal_action
, 0);
1938 /* This just means available memory is getting low. */
1939 emacs_sigaction_init (&action
, deliver_danger_signal
);
1940 sigaction (SIGDANGER
, &action
, 0);
1943 /* AIX-specific signals. */
1945 sigaction (SIGGRANT
, &process_fatal_action
, 0);
1948 sigaction (SIGMIGRATE
, &process_fatal_action
, 0);
1951 sigaction (SIGMSG
, &process_fatal_action
, 0);
1954 sigaction (SIGRETRACT
, &process_fatal_action
, 0);
1957 sigaction (SIGSAK
, &process_fatal_action
, 0);
1960 sigaction (SIGSOUND
, &process_fatal_action
, 0);
1963 sigaction (SIGTALRM
, &thread_fatal_action
, 0);
1973 /* Figure out how many bits the system's random number generator uses.
1974 `random' and `lrand48' are assumed to return 31 usable bits.
1975 BSD `rand' returns a 31 bit value but the low order bits are unusable;
1976 so we'll shift it and treat it like the 15-bit USG `rand'. */
1980 # define RAND_BITS 31
1981 # else /* !HAVE_RANDOM */
1982 # ifdef HAVE_LRAND48
1983 # define RAND_BITS 31
1984 # define random lrand48
1985 # else /* !HAVE_LRAND48 */
1986 # define RAND_BITS 15
1987 # if RAND_MAX == 32767
1988 # define random rand
1989 # else /* RAND_MAX != 32767 */
1990 # if RAND_MAX == 2147483647
1991 # define random() (rand () >> 16)
1992 # else /* RAND_MAX != 2147483647 */
1994 # define random rand
1996 # define random() (rand () >> 16)
1998 # endif /* RAND_MAX != 2147483647 */
1999 # endif /* RAND_MAX != 32767 */
2000 # endif /* !HAVE_LRAND48 */
2001 # endif /* !HAVE_RANDOM */
2002 #endif /* !RAND_BITS */
2005 seed_random (void *seed
, ptrdiff_t seed_size
)
2007 #if defined HAVE_RANDOM || ! defined HAVE_LRAND48
2008 unsigned int arg
= 0;
2012 unsigned char *argp
= (unsigned char *) &arg
;
2013 unsigned char *seedp
= seed
;
2015 for (i
= 0; i
< seed_size
; i
++)
2016 argp
[i
% sizeof arg
] ^= seedp
[i
];
2020 # ifdef HAVE_LRAND48
2031 EMACS_TIME t
= current_emacs_time ();
2032 uintmax_t v
= getpid () ^ EMACS_SECS (t
) ^ EMACS_NSECS (t
);
2033 seed_random (&v
, sizeof v
);
2037 * Return a nonnegative random integer out of whatever we've got.
2038 * It contains enough bits to make a random (signed) Emacs fixnum.
2039 * This suffices even for a 64-bit architecture with a 15-bit rand.
2046 for (i
= 0; i
< (FIXNUM_BITS
+ RAND_BITS
- 1) / RAND_BITS
; i
++)
2047 val
= (random () ^ (val
<< RAND_BITS
)
2048 ^ (val
>> (BITS_PER_EMACS_INT
- RAND_BITS
)));
2049 val
^= val
>> (BITS_PER_EMACS_INT
- FIXNUM_BITS
);
2050 return val
& INTMASK
;
2053 #ifndef HAVE_SNPRINTF
2054 /* Approximate snprintf as best we can on ancient hosts that lack it. */
2056 snprintf (char *buf
, size_t bufsize
, char const *format
, ...)
2058 ptrdiff_t size
= min (bufsize
, PTRDIFF_MAX
);
2059 ptrdiff_t nbytes
= size
- 1;
2064 va_start (ap
, format
);
2065 nbytes
= doprnt (buf
, size
, format
, 0, ap
);
2069 if (nbytes
== size
- 1)
2071 /* Calculate the length of the string that would have been created
2072 had the buffer been large enough. */
2073 char stackbuf
[4000];
2075 ptrdiff_t bsize
= sizeof stackbuf
;
2076 va_start (ap
, format
);
2077 nbytes
= evxprintf (&b
, &bsize
, stackbuf
, -1, format
, ap
);
2083 if (INT_MAX
< nbytes
)
2096 /* If a backtrace is available, output the top lines of it to stderr.
2097 Do not output more than BACKTRACE_LIMIT or BACKTRACE_LIMIT_MAX lines.
2098 This function may be called from a signal handler, so it should
2099 not invoke async-unsafe functions like malloc. */
2101 emacs_backtrace (int backtrace_limit
)
2103 void *main_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
2104 int bounded_limit
= min (backtrace_limit
, BACKTRACE_LIMIT_MAX
);
2108 if (thread_backtrace_npointers
)
2110 buffer
= thread_backtrace_buffer
;
2111 npointers
= thread_backtrace_npointers
;
2115 buffer
= main_backtrace_buffer
;
2116 npointers
= backtrace (buffer
, bounded_limit
+ 1);
2121 ignore_value (write (STDERR_FILENO
, "\nBacktrace:\n", 12));
2122 backtrace_symbols_fd (buffer
, npointers
, STDERR_FILENO
);
2123 if (bounded_limit
< npointers
)
2124 ignore_value (write (STDERR_FILENO
, "...\n", 4));
2132 terminate_due_to_signal (SIGABRT
, 10);
2137 emacs_open (const char *path
, int oflag
, int mode
)
2139 register int rtnval
;
2141 while ((rtnval
= open (path
, oflag
, mode
)) == -1
2142 && (errno
== EINTR
))
2148 emacs_close (int fd
)
2151 register int rtnval
;
2153 while ((rtnval
= close (fd
)) == -1
2154 && (errno
== EINTR
))
2157 /* If close is interrupted SunOS 4.1 may or may not have closed the
2158 file descriptor. If it did the second close will fail with
2159 errno = EBADF. That means we have succeeded. */
2160 if (rtnval
== -1 && did_retry
&& errno
== EBADF
)
2166 /* Maximum number of bytes to read or write in a single system call.
2167 This works around a serious bug in Linux kernels before 2.6.16; see
2168 <https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=612839>.
2169 It's likely to work around similar bugs in other operating systems, so do it
2170 on all platforms. Round INT_MAX down to a page size, with the conservative
2171 assumption that page sizes are at most 2**18 bytes (any kernel with a
2172 page size larger than that shouldn't have the bug). */
2173 #ifndef MAX_RW_COUNT
2174 #define MAX_RW_COUNT (INT_MAX >> 18 << 18)
2177 /* Read from FILEDESC to a buffer BUF with size NBYTE, retrying if interrupted.
2178 Return the number of bytes read, which might be less than NBYTE.
2179 On error, set errno and return -1. */
2181 emacs_read (int fildes
, char *buf
, ptrdiff_t nbyte
)
2183 register ssize_t rtnval
;
2185 /* There is no need to check against MAX_RW_COUNT, since no caller ever
2186 passes a size that large to emacs_read. */
2188 while ((rtnval
= read (fildes
, buf
, nbyte
)) == -1
2189 && (errno
== EINTR
))
2194 /* Write to FILEDES from a buffer BUF with size NBYTE, retrying if interrupted
2195 or if a partial write occurs. Return the number of bytes written, setting
2196 errno if this is less than NBYTE. */
2198 emacs_write (int fildes
, const char *buf
, ptrdiff_t nbyte
)
2201 ptrdiff_t bytes_written
;
2207 rtnval
= write (fildes
, buf
, min (nbyte
, MAX_RW_COUNT
));
2213 /* I originally used `QUIT' but that might causes files to
2214 be truncated if you hit C-g in the middle of it. --Stef */
2215 if (pending_signals
)
2216 process_pending_signals ();
2225 bytes_written
+= rtnval
;
2228 return (bytes_written
);
2231 static struct allocator
const emacs_norealloc_allocator
=
2232 { xmalloc
, NULL
, xfree
, memory_full
};
2234 /* Get the symbolic link value of FILENAME. Return a pointer to a
2235 NUL-terminated string. If readlink fails, return NULL and set
2236 errno. If the value fits in INITIAL_BUF, return INITIAL_BUF.
2237 Otherwise, allocate memory and return a pointer to that memory. If
2238 memory allocation fails, diagnose and fail without returning. If
2239 successful, store the length of the symbolic link into *LINKLEN. */
2241 emacs_readlink (char const *filename
, char initial_buf
[READLINK_BUFSIZE
])
2243 return careadlinkat (AT_FDCWD
, filename
, initial_buf
, READLINK_BUFSIZE
,
2244 &emacs_norealloc_allocator
, careadlinkatcwd
);
2247 /* Return a struct timeval that is roughly equivalent to T.
2248 Use the least timeval not less than T.
2249 Return an extremal value if the result would overflow. */
2251 make_timeval (EMACS_TIME t
)
2254 tv
.tv_sec
= t
.tv_sec
;
2255 tv
.tv_usec
= t
.tv_nsec
/ 1000;
2257 if (t
.tv_nsec
% 1000 != 0)
2259 if (tv
.tv_usec
< 999999)
2261 else if (tv
.tv_sec
< TYPE_MAXIMUM (time_t))
2271 /* Set the access and modification time stamps of FD (a.k.a. FILE) to be
2272 ATIME and MTIME, respectively.
2273 FD must be either negative -- in which case it is ignored --
2274 or a file descriptor that is open on FILE.
2275 If FD is nonnegative, then FILE can be NULL. */
2277 set_file_times (int fd
, const char *filename
,
2278 EMACS_TIME atime
, EMACS_TIME mtime
)
2280 struct timespec timespec
[2];
2281 timespec
[0] = atime
;
2282 timespec
[1] = mtime
;
2283 return fdutimens (fd
, filename
, timespec
);
2286 /* Like strsignal, except async-signal-safe, and this function typically
2287 returns a string in the C locale rather than the current locale. */
2289 safe_strsignal (int code
)
2291 char const *signame
= 0;
2293 if (0 <= code
&& code
< sys_siglist_entries
)
2294 signame
= sys_siglist
[code
];
2296 signame
= "Unknown signal";
2302 /* For make-serial-process */
2304 serial_open (char *port
)
2306 int fd
= emacs_open (port
, O_RDWR
| O_NOCTTY
| O_NONBLOCK
, 0);
2309 error ("Could not open %s: %s",
2310 port
, emacs_strerror (errno
));
2313 ioctl (fd
, TIOCEXCL
, (char *) 0);
2319 #if !defined (HAVE_CFMAKERAW)
2320 /* Workaround for targets which are missing cfmakeraw. */
2321 /* Pasted from man page. */
2323 cfmakeraw (struct termios
*termios_p
)
2325 termios_p
->c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
2326 termios_p
->c_oflag
&= ~OPOST
;
2327 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
2328 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
2329 termios_p
->c_cflag
|= CS8
;
2331 #endif /* !defined (HAVE_CFMAKERAW */
2333 #if !defined (HAVE_CFSETSPEED)
2334 /* Workaround for targets which are missing cfsetspeed. */
2336 cfsetspeed (struct termios
*termios_p
, speed_t vitesse
)
2338 return (cfsetispeed (termios_p
, vitesse
)
2339 + cfsetospeed (termios_p
, vitesse
));
2343 /* For serial-process-configure */
2345 serial_configure (struct Lisp_Process
*p
,
2346 Lisp_Object contact
)
2348 Lisp_Object childp2
= Qnil
;
2349 Lisp_Object tem
= Qnil
;
2350 struct termios attr
;
2352 char summary
[4] = "???"; /* This usually becomes "8N1". */
2354 childp2
= Fcopy_sequence (p
->childp
);
2356 /* Read port attributes and prepare default configuration. */
2357 err
= tcgetattr (p
->outfd
, &attr
);
2359 error ("tcgetattr() failed: %s", emacs_strerror (errno
));
2361 #if defined (CLOCAL)
2362 attr
.c_cflag
|= CLOCAL
;
2365 attr
.c_cflag
|= CREAD
;
2368 /* Configure speed. */
2369 if (!NILP (Fplist_member (contact
, QCspeed
)))
2370 tem
= Fplist_get (contact
, QCspeed
);
2372 tem
= Fplist_get (p
->childp
, QCspeed
);
2374 err
= cfsetspeed (&attr
, XINT (tem
));
2376 error ("cfsetspeed(%"pI
"d) failed: %s", XINT (tem
),
2377 emacs_strerror (errno
));
2378 childp2
= Fplist_put (childp2
, QCspeed
, tem
);
2380 /* Configure bytesize. */
2381 if (!NILP (Fplist_member (contact
, QCbytesize
)))
2382 tem
= Fplist_get (contact
, QCbytesize
);
2384 tem
= Fplist_get (p
->childp
, QCbytesize
);
2386 tem
= make_number (8);
2388 if (XINT (tem
) != 7 && XINT (tem
) != 8)
2389 error (":bytesize must be nil (8), 7, or 8");
2390 summary
[0] = XINT (tem
) + '0';
2391 #if defined (CSIZE) && defined (CS7) && defined (CS8)
2392 attr
.c_cflag
&= ~CSIZE
;
2393 attr
.c_cflag
|= ((XINT (tem
) == 7) ? CS7
: CS8
);
2395 /* Don't error on bytesize 8, which should be set by cfmakeraw. */
2396 if (XINT (tem
) != 8)
2397 error ("Bytesize cannot be changed");
2399 childp2
= Fplist_put (childp2
, QCbytesize
, tem
);
2401 /* Configure parity. */
2402 if (!NILP (Fplist_member (contact
, QCparity
)))
2403 tem
= Fplist_get (contact
, QCparity
);
2405 tem
= Fplist_get (p
->childp
, QCparity
);
2406 if (!NILP (tem
) && !EQ (tem
, Qeven
) && !EQ (tem
, Qodd
))
2407 error (":parity must be nil (no parity), `even', or `odd'");
2408 #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK)
2409 attr
.c_cflag
&= ~(PARENB
| PARODD
);
2410 attr
.c_iflag
&= ~(IGNPAR
| INPCK
);
2415 else if (EQ (tem
, Qeven
))
2418 attr
.c_cflag
|= PARENB
;
2419 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2421 else if (EQ (tem
, Qodd
))
2424 attr
.c_cflag
|= (PARENB
| PARODD
);
2425 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2428 /* Don't error on no parity, which should be set by cfmakeraw. */
2430 error ("Parity cannot be configured");
2432 childp2
= Fplist_put (childp2
, QCparity
, tem
);
2434 /* Configure stopbits. */
2435 if (!NILP (Fplist_member (contact
, QCstopbits
)))
2436 tem
= Fplist_get (contact
, QCstopbits
);
2438 tem
= Fplist_get (p
->childp
, QCstopbits
);
2440 tem
= make_number (1);
2442 if (XINT (tem
) != 1 && XINT (tem
) != 2)
2443 error (":stopbits must be nil (1 stopbit), 1, or 2");
2444 summary
[2] = XINT (tem
) + '0';
2445 #if defined (CSTOPB)
2446 attr
.c_cflag
&= ~CSTOPB
;
2447 if (XINT (tem
) == 2)
2448 attr
.c_cflag
|= CSTOPB
;
2450 /* Don't error on 1 stopbit, which should be set by cfmakeraw. */
2451 if (XINT (tem
) != 1)
2452 error ("Stopbits cannot be configured");
2454 childp2
= Fplist_put (childp2
, QCstopbits
, tem
);
2456 /* Configure flowcontrol. */
2457 if (!NILP (Fplist_member (contact
, QCflowcontrol
)))
2458 tem
= Fplist_get (contact
, QCflowcontrol
);
2460 tem
= Fplist_get (p
->childp
, QCflowcontrol
);
2461 if (!NILP (tem
) && !EQ (tem
, Qhw
) && !EQ (tem
, Qsw
))
2462 error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
2463 #if defined (CRTSCTS)
2464 attr
.c_cflag
&= ~CRTSCTS
;
2466 #if defined (CNEW_RTSCTS)
2467 attr
.c_cflag
&= ~CNEW_RTSCTS
;
2469 #if defined (IXON) && defined (IXOFF)
2470 attr
.c_iflag
&= ~(IXON
| IXOFF
);
2474 /* Already configured. */
2476 else if (EQ (tem
, Qhw
))
2478 #if defined (CRTSCTS)
2479 attr
.c_cflag
|= CRTSCTS
;
2480 #elif defined (CNEW_RTSCTS)
2481 attr
.c_cflag
|= CNEW_RTSCTS
;
2483 error ("Hardware flowcontrol (RTS/CTS) not supported");
2486 else if (EQ (tem
, Qsw
))
2488 #if defined (IXON) && defined (IXOFF)
2489 attr
.c_iflag
|= (IXON
| IXOFF
);
2491 error ("Software flowcontrol (XON/XOFF) not supported");
2494 childp2
= Fplist_put (childp2
, QCflowcontrol
, tem
);
2496 /* Activate configuration. */
2497 err
= tcsetattr (p
->outfd
, TCSANOW
, &attr
);
2499 error ("tcsetattr() failed: %s", emacs_strerror (errno
));
2501 childp2
= Fplist_put (childp2
, QCsummary
, build_string (summary
));
2502 pset_childp (p
, childp2
);
2504 #endif /* not DOS_NT */
2506 /* System depended enumeration of and access to system processes a-la ps(1). */
2510 /* Process enumeration and access via /proc. */
2513 list_system_processes (void)
2515 Lisp_Object procdir
, match
, proclist
, next
;
2516 struct gcpro gcpro1
, gcpro2
;
2517 register Lisp_Object tail
;
2519 GCPRO2 (procdir
, match
);
2520 /* For every process on the system, there's a directory in the
2521 "/proc" pseudo-directory whose name is the numeric ID of that
2523 procdir
= build_string ("/proc");
2524 match
= build_string ("[0-9]+");
2525 proclist
= directory_files_internal (procdir
, Qnil
, match
, Qt
, 0, Qnil
);
2527 /* `proclist' gives process IDs as strings. Destructively convert
2528 each string into a number. */
2529 for (tail
= proclist
; CONSP (tail
); tail
= next
)
2532 XSETCAR (tail
, Fstring_to_number (XCAR (tail
), Qnil
));
2536 /* directory_files_internal returns the files in reverse order; undo
2538 proclist
= Fnreverse (proclist
);
2542 #elif defined BSD_SYSTEM
2545 list_system_processes (void)
2547 #if defined DARWIN_OS || defined __NetBSD__ || defined __OpenBSD__
2548 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_ALL
};
2550 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PROC
};
2553 struct kinfo_proc
*procs
;
2556 struct gcpro gcpro1
;
2557 Lisp_Object proclist
= Qnil
;
2559 if (sysctl (mib
, 3, NULL
, &len
, NULL
, 0) != 0)
2562 procs
= xmalloc (len
);
2563 if (sysctl (mib
, 3, procs
, &len
, NULL
, 0) != 0)
2570 len
/= sizeof (struct kinfo_proc
);
2571 for (i
= 0; i
< len
; i
++)
2573 #if defined DARWIN_OS || defined __NetBSD__
2574 proclist
= Fcons (make_fixnum_or_float (procs
[i
].kp_proc
.p_pid
), proclist
);
2575 #elif defined __OpenBSD__
2576 proclist
= Fcons (make_fixnum_or_float (procs
[i
].p_pid
), proclist
);
2578 proclist
= Fcons (make_fixnum_or_float (procs
[i
].ki_pid
), proclist
);
2588 /* The WINDOWSNT implementation is in w32.c.
2589 The MSDOS implementation is in dosfns.c. */
2590 #elif !defined (WINDOWSNT) && !defined (MSDOS)
2593 list_system_processes (void)
2598 #endif /* !defined (WINDOWSNT) */
2602 time_from_jiffies (unsigned long long tval
, long hz
)
2604 unsigned long long s
= tval
/ hz
;
2605 unsigned long long frac
= tval
% hz
;
2608 if (TYPE_MAXIMUM (time_t) < s
)
2610 if (LONG_MAX
- 1 <= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
2611 || frac
<= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
)
2612 ns
= frac
* EMACS_TIME_RESOLUTION
/ hz
;
2615 /* This is reachable only in the unlikely case that HZ * HZ
2616 exceeds ULLONG_MAX. It calculates an approximation that is
2617 guaranteed to be in range. */
2618 long hz_per_ns
= (hz
/ EMACS_TIME_RESOLUTION
2619 + (hz
% EMACS_TIME_RESOLUTION
!= 0));
2620 ns
= frac
/ hz_per_ns
;
2623 return make_emacs_time (s
, ns
);
2627 ltime_from_jiffies (unsigned long long tval
, long hz
)
2629 EMACS_TIME t
= time_from_jiffies (tval
, hz
);
2630 return make_lisp_time (t
);
2637 EMACS_TIME up
= make_emacs_time (0, 0);
2640 fup
= fopen ("/proc/uptime", "r");
2644 unsigned long long upsec
, upfrac
, idlesec
, idlefrac
;
2645 int upfrac_start
, upfrac_end
, idlefrac_start
, idlefrac_end
;
2647 if (fscanf (fup
, "%llu.%n%llu%n %llu.%n%llu%n",
2648 &upsec
, &upfrac_start
, &upfrac
, &upfrac_end
,
2649 &idlesec
, &idlefrac_start
, &idlefrac
, &idlefrac_end
)
2652 if (TYPE_MAXIMUM (time_t) < upsec
)
2654 upsec
= TYPE_MAXIMUM (time_t);
2655 upfrac
= EMACS_TIME_RESOLUTION
- 1;
2659 int upfraclen
= upfrac_end
- upfrac_start
;
2660 for (; upfraclen
< LOG10_EMACS_TIME_RESOLUTION
; upfraclen
++)
2662 for (; LOG10_EMACS_TIME_RESOLUTION
< upfraclen
; upfraclen
--)
2664 upfrac
= min (upfrac
, EMACS_TIME_RESOLUTION
- 1);
2666 up
= make_emacs_time (upsec
, upfrac
);
2675 #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff)
2676 #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12))
2679 procfs_ttyname (int rdev
)
2682 char name
[PATH_MAX
];
2685 fdev
= fopen ("/proc/tty/drivers", "r");
2690 unsigned long minor_beg
, minor_end
;
2691 char minor
[25]; /* 2 32-bit numbers + dash */
2694 while (!feof (fdev
) && !ferror (fdev
))
2696 if (3 <= fscanf (fdev
, "%*s %s %u %s %*s\n", name
, &major
, minor
)
2697 && major
== MAJOR (rdev
))
2699 minor_beg
= strtoul (minor
, &endp
, 0);
2701 minor_end
= minor_beg
;
2702 else if (*endp
== '-')
2703 minor_end
= strtoul (endp
+ 1, &endp
, 0);
2707 if (MINOR (rdev
) >= minor_beg
&& MINOR (rdev
) <= minor_end
)
2709 sprintf (name
+ strlen (name
), "%u", MINOR (rdev
));
2717 return build_string (name
);
2720 static unsigned long
2721 procfs_get_total_memory (void)
2724 unsigned long retval
= 2 * 1024 * 1024; /* default: 2GB */
2727 fmem
= fopen ("/proc/meminfo", "r");
2731 unsigned long entry_value
;
2732 char entry_name
[20]; /* the longest I saw is 13+1 */
2734 while (!feof (fmem
) && !ferror (fmem
))
2736 if (2 <= fscanf (fmem
, "%s %lu kB\n", entry_name
, &entry_value
)
2737 && strcmp (entry_name
, "MemTotal:") == 0)
2739 retval
= entry_value
;
2750 system_process_attributes (Lisp_Object pid
)
2752 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
2756 long clocks_per_sec
;
2758 char procbuf
[1025], *p
, *q
;
2761 static char const default_cmd
[] = "???";
2762 const char *cmd
= default_cmd
;
2763 int cmdsize
= sizeof default_cmd
- 1;
2764 char *cmdline
= NULL
;
2765 ptrdiff_t cmdline_size
;
2768 int ppid
, pgrp
, sess
, tty
, tpgid
, thcount
;
2771 unsigned long long u_time
, s_time
, cutime
, cstime
, start
;
2772 long priority
, niceness
, rss
;
2773 unsigned long minflt
, majflt
, cminflt
, cmajflt
, vsize
;
2774 EMACS_TIME tnow
, tstart
, tboot
, telapsed
, us_time
;
2776 Lisp_Object attrs
= Qnil
;
2777 Lisp_Object cmd_str
, decoded_cmd
, tem
;
2778 struct gcpro gcpro1
, gcpro2
;
2780 CHECK_NUMBER_OR_FLOAT (pid
);
2781 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
2782 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
2783 if (stat (procfn
, &st
) < 0)
2786 GCPRO2 (attrs
, decoded_cmd
);
2790 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
2792 pw
= getpwuid (uid
);
2795 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
2798 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
2800 gr
= getgrgid (gid
);
2803 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
2805 strcpy (fn
, procfn
);
2806 procfn_end
= fn
+ strlen (fn
);
2807 strcpy (procfn_end
, "/stat");
2808 fd
= emacs_open (fn
, O_RDONLY
, 0);
2809 if (fd
>= 0 && (nread
= emacs_read (fd
, procbuf
, sizeof (procbuf
) - 1)) > 0)
2811 procbuf
[nread
] = '\0';
2814 p
= strchr (p
, '(');
2817 q
= strrchr (p
+ 1, ')');
2827 /* Command name is encoded in locale-coding-system; decode it. */
2828 cmd_str
= make_unibyte_string (cmd
, cmdsize
);
2829 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2830 Vlocale_coding_system
, 0);
2831 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
2835 EMACS_INT ppid_eint
, pgrp_eint
, sess_eint
, tpgid_eint
, thcount_eint
;
2837 /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */
2838 sscanf (p
, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld",
2839 &c
, &ppid
, &pgrp
, &sess
, &tty
, &tpgid
,
2840 &minflt
, &cminflt
, &majflt
, &cmajflt
,
2841 &u_time
, &s_time
, &cutime
, &cstime
,
2842 &priority
, &niceness
, &thcount
, &start
, &vsize
, &rss
);
2847 state_str
[1] = '\0';
2848 tem
= build_string (state_str
);
2849 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
2851 /* Stops GCC whining about limited range of data type. */
2856 thcount_eint
= thcount
;
2857 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (ppid_eint
)), attrs
);
2858 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pgrp_eint
)), attrs
);
2859 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (sess_eint
)), attrs
);
2860 attrs
= Fcons (Fcons (Qttname
, procfs_ttyname (tty
)), attrs
);
2861 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (tpgid_eint
)), attrs
);
2862 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (minflt
)), attrs
);
2863 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (majflt
)), attrs
);
2864 attrs
= Fcons (Fcons (Qcminflt
, make_fixnum_or_float (cminflt
)), attrs
);
2865 attrs
= Fcons (Fcons (Qcmajflt
, make_fixnum_or_float (cmajflt
)), attrs
);
2866 clocks_per_sec
= sysconf (_SC_CLK_TCK
);
2867 if (clocks_per_sec
< 0)
2868 clocks_per_sec
= 100;
2869 attrs
= Fcons (Fcons (Qutime
,
2870 ltime_from_jiffies (u_time
, clocks_per_sec
)),
2872 attrs
= Fcons (Fcons (Qstime
,
2873 ltime_from_jiffies (s_time
, clocks_per_sec
)),
2875 attrs
= Fcons (Fcons (Qtime
,
2876 ltime_from_jiffies (s_time
+ u_time
,
2879 attrs
= Fcons (Fcons (Qcutime
,
2880 ltime_from_jiffies (cutime
, clocks_per_sec
)),
2882 attrs
= Fcons (Fcons (Qcstime
,
2883 ltime_from_jiffies (cstime
, clocks_per_sec
)),
2885 attrs
= Fcons (Fcons (Qctime
,
2886 ltime_from_jiffies (cstime
+cutime
, clocks_per_sec
)),
2888 attrs
= Fcons (Fcons (Qpri
, make_number (priority
)), attrs
);
2889 attrs
= Fcons (Fcons (Qnice
, make_number (niceness
)), attrs
);
2890 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (thcount_eint
)), attrs
);
2891 tnow
= current_emacs_time ();
2892 telapsed
= get_up_time ();
2893 tboot
= sub_emacs_time (tnow
, telapsed
);
2894 tstart
= time_from_jiffies (start
, clocks_per_sec
);
2895 tstart
= add_emacs_time (tboot
, tstart
);
2896 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (tstart
)), attrs
);
2897 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (vsize
/1024)), attrs
);
2898 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (4*rss
)), attrs
);
2899 telapsed
= sub_emacs_time (tnow
, tstart
);
2900 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (telapsed
)), attrs
);
2901 us_time
= time_from_jiffies (u_time
+ s_time
, clocks_per_sec
);
2902 pcpu
= (EMACS_TIME_TO_DOUBLE (us_time
)
2903 / EMACS_TIME_TO_DOUBLE (telapsed
));
2906 attrs
= Fcons (Fcons (Qpcpu
, make_float (100 * pcpu
)), attrs
);
2907 pmem
= 4.0 * 100 * rss
/ procfs_get_total_memory ();
2910 attrs
= Fcons (Fcons (Qpmem
, make_float (pmem
)), attrs
);
2917 strcpy (procfn_end
, "/cmdline");
2918 fd
= emacs_open (fn
, O_RDONLY
, 0);
2922 for (cmdline_size
= 0; cmdline_size
< STRING_BYTES_BOUND
; cmdline_size
++)
2924 if (emacs_read (fd
, &ch
, 1) != 1)
2927 if (c_isspace (c
) || c
== '\\')
2928 cmdline_size
++; /* for later quoting, see below */
2932 cmdline
= xmalloc (cmdline_size
+ 1);
2933 lseek (fd
, 0L, SEEK_SET
);
2935 if ((nread
= read (fd
, cmdline
, cmdline_size
)) >= 0)
2936 cmdline
[nread
++] = '\0';
2939 /* Assigning zero to `nread' makes us skip the following
2940 two loops, assign zero to cmdline_size, and enter the
2941 following `if' clause that handles unknown command
2945 /* We don't want trailing null characters. */
2946 for (p
= cmdline
+ nread
; p
> cmdline
+ 1 && !p
[-1]; p
--)
2948 for (p
= cmdline
; p
< cmdline
+ nread
; p
++)
2950 /* Escape-quote whitespace and backslashes. */
2951 if (c_isspace (*p
) || *p
== '\\')
2953 memmove (p
+ 1, p
, nread
- (p
- cmdline
));
2957 else if (*p
== '\0')
2960 cmdline_size
= nread
;
2964 cmdline_size
= cmdsize
+ 2;
2965 cmdline
= xmalloc (cmdline_size
+ 1);
2966 sprintf (cmdline
, "[%.*s]", cmdsize
, cmd
);
2969 /* Command line is encoded in locale-coding-system; decode it. */
2970 cmd_str
= make_unibyte_string (cmdline
, cmdline_size
);
2971 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2972 Vlocale_coding_system
, 0);
2974 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
2981 #elif defined (SOLARIS2) && defined (HAVE_PROCFS)
2983 /* The <procfs.h> header does not like to be included if _LP64 is defined and
2984 __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */
2985 #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
2986 #define PROCFS_FILE_OFFSET_BITS_HACK 1
2987 #undef _FILE_OFFSET_BITS
2989 #define PROCFS_FILE_OFFSET_BITS_HACK 0
2994 #if PROCFS_FILE_OFFSET_BITS_HACK == 1
2995 #define _FILE_OFFSET_BITS 64
2996 #ifdef _FILE_OFFSET_BITS /* Avoid unused-macro warnings. */
2998 #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */
3001 system_process_attributes (Lisp_Object pid
)
3003 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3008 struct psinfo pinfo
;
3014 Lisp_Object attrs
= Qnil
;
3015 Lisp_Object decoded_cmd
, tem
;
3016 struct gcpro gcpro1
, gcpro2
;
3018 CHECK_NUMBER_OR_FLOAT (pid
);
3019 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
3020 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
3021 if (stat (procfn
, &st
) < 0)
3024 GCPRO2 (attrs
, decoded_cmd
);
3028 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
3030 pw
= getpwuid (uid
);
3033 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3036 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
3038 gr
= getgrgid (gid
);
3041 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3043 strcpy (fn
, procfn
);
3044 procfn_end
= fn
+ strlen (fn
);
3045 strcpy (procfn_end
, "/psinfo");
3046 fd
= emacs_open (fn
, O_RDONLY
, 0);
3048 && (nread
= read (fd
, (char*)&pinfo
, sizeof (struct psinfo
)) > 0))
3050 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (pinfo
.pr_ppid
)), attrs
);
3051 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pinfo
.pr_pgid
)), attrs
);
3052 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (pinfo
.pr_sid
)), attrs
);
3056 state_str
[0] = pinfo
.pr_lwp
.pr_sname
;
3057 state_str
[1] = '\0';
3058 tem
= build_string (state_str
);
3059 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3062 /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t,
3063 need to get a string from it. */
3065 /* FIXME: missing: Qtpgid */
3077 Are they available? */
3079 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (pinfo
.pr_time
)), attrs
);
3080 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (pinfo
.pr_ctime
)), attrs
);
3081 attrs
= Fcons (Fcons (Qpri
, make_number (pinfo
.pr_lwp
.pr_pri
)), attrs
);
3082 attrs
= Fcons (Fcons (Qnice
, make_number (pinfo
.pr_lwp
.pr_nice
)), attrs
);
3083 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (pinfo
.pr_nlwp
)), attrs
);
3085 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (pinfo
.pr_start
)), attrs
);
3086 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (pinfo
.pr_size
)), attrs
);
3087 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (pinfo
.pr_rssize
)), attrs
);
3089 /* pr_pctcpu and pr_pctmem are unsigned integers in the
3090 range 0 .. 2**15, representing 0.0 .. 1.0. */
3091 attrs
= Fcons (Fcons (Qpcpu
, make_float (100.0 / 0x8000 * pinfo
.pr_pctcpu
)), attrs
);
3092 attrs
= Fcons (Fcons (Qpmem
, make_float (100.0 / 0x8000 * pinfo
.pr_pctmem
)), attrs
);
3095 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_fname
,
3096 strlen (pinfo
.pr_fname
)),
3097 Vlocale_coding_system
, 0);
3098 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3100 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_psargs
,
3101 strlen (pinfo
.pr_psargs
)),
3102 Vlocale_coding_system
, 0);
3103 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3113 #elif defined __FreeBSD__
3116 timeval_to_EMACS_TIME (struct timeval t
)
3118 return make_emacs_time (t
.tv_sec
, t
.tv_usec
* 1000);
3122 make_lisp_timeval (struct timeval t
)
3124 return make_lisp_time (timeval_to_EMACS_TIME (t
));
3128 system_process_attributes (Lisp_Object pid
)
3131 int pagesize
= getpagesize ();
3138 char args
[MAXPATHLEN
];
3141 int mib
[4] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PID
};
3142 struct kinfo_proc proc
;
3143 size_t proclen
= sizeof proc
;
3145 struct gcpro gcpro1
, gcpro2
;
3146 Lisp_Object attrs
= Qnil
;
3147 Lisp_Object decoded_comm
;
3149 CHECK_NUMBER_OR_FLOAT (pid
);
3150 CONS_TO_INTEGER (pid
, int, proc_id
);
3153 if (sysctl (mib
, 4, &proc
, &proclen
, NULL
, 0) != 0)
3156 GCPRO2 (attrs
, decoded_comm
);
3158 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (proc
.ki_uid
)), attrs
);
3161 pw
= getpwuid (proc
.ki_uid
);
3164 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3166 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (proc
.ki_svgid
)), attrs
);
3169 gr
= getgrgid (proc
.ki_svgid
);
3172 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3174 decoded_comm
= code_convert_string_norecord
3175 (make_unibyte_string (proc
.ki_comm
, strlen (proc
.ki_comm
)),
3176 Vlocale_coding_system
, 0);
3178 attrs
= Fcons (Fcons (Qcomm
, decoded_comm
), attrs
);
3180 char state
[2] = {'\0', '\0'};
3181 switch (proc
.ki_stat
)
3203 attrs
= Fcons (Fcons (Qstate
, build_string (state
)), attrs
);
3206 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (proc
.ki_ppid
)), attrs
);
3207 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (proc
.ki_pgid
)), attrs
);
3208 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (proc
.ki_sid
)), attrs
);
3211 ttyname
= proc
.ki_tdev
== NODEV
? NULL
: devname (proc
.ki_tdev
, S_IFCHR
);
3214 attrs
= Fcons (Fcons (Qtty
, build_string (ttyname
)), attrs
);
3216 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (proc
.ki_tpgid
)), attrs
);
3217 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_minflt
)), attrs
);
3218 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_majflt
)), attrs
);
3219 attrs
= Fcons (Fcons (Qcminflt
, make_number (proc
.ki_rusage_ch
.ru_minflt
)), attrs
);
3220 attrs
= Fcons (Fcons (Qcmajflt
, make_number (proc
.ki_rusage_ch
.ru_majflt
)), attrs
);
3222 attrs
= Fcons (Fcons (Qutime
, make_lisp_timeval (proc
.ki_rusage
.ru_utime
)),
3224 attrs
= Fcons (Fcons (Qstime
, make_lisp_timeval (proc
.ki_rusage
.ru_stime
)),
3226 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_utime
),
3227 timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_stime
));
3228 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (t
)), attrs
);
3230 attrs
= Fcons (Fcons (Qcutime
,
3231 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3233 attrs
= Fcons (Fcons (Qcstime
,
3234 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3236 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_utime
),
3237 timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_stime
));
3238 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (t
)), attrs
);
3240 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (proc
.ki_numthreads
)),
3242 attrs
= Fcons (Fcons (Qpri
, make_number (proc
.ki_pri
.pri_native
)), attrs
);
3243 attrs
= Fcons (Fcons (Qnice
, make_number (proc
.ki_nice
)), attrs
);
3244 attrs
= Fcons (Fcons (Qstart
, make_lisp_timeval (proc
.ki_start
)), attrs
);
3245 attrs
= Fcons (Fcons (Qvsize
, make_number (proc
.ki_size
>> 10)), attrs
);
3246 attrs
= Fcons (Fcons (Qrss
, make_number (proc
.ki_rssize
* pagesize
>> 10)),
3249 now
= current_emacs_time ();
3250 t
= sub_emacs_time (now
, timeval_to_EMACS_TIME (proc
.ki_start
));
3251 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (t
)), attrs
);
3253 len
= sizeof fscale
;
3254 if (sysctlbyname ("kern.fscale", &fscale
, &len
, NULL
, 0) == 0)
3259 if (sysctlbyname ("kern.ccpu", &ccpu
, &len
, NULL
, 0) == 0)
3261 pcpu
= (100.0 * proc
.ki_pctcpu
/ fscale
3262 / (1 - exp (proc
.ki_swtime
* log ((double) ccpu
/ fscale
))));
3263 attrs
= Fcons (Fcons (Qpcpu
, make_fixnum_or_float (pcpu
)), attrs
);
3267 len
= sizeof npages
;
3268 if (sysctlbyname ("hw.availpages", &npages
, &len
, NULL
, 0) == 0)
3270 double pmem
= (proc
.ki_flag
& P_INMEM
3271 ? 100.0 * proc
.ki_rssize
/ npages
3273 attrs
= Fcons (Fcons (Qpmem
, make_fixnum_or_float (pmem
)), attrs
);
3276 mib
[2] = KERN_PROC_ARGS
;
3278 if (sysctl (mib
, 4, args
, &len
, NULL
, 0) == 0)
3281 for (i
= 0; i
< len
; i
++)
3283 if (! args
[i
] && i
< len
- 1)
3288 (code_convert_string_norecord
3289 (build_unibyte_string (args
),
3290 Vlocale_coding_system
, 0));
3292 attrs
= Fcons (Fcons (Qargs
, decoded_comm
), attrs
);
3299 /* The WINDOWSNT implementation is in w32.c.
3300 The MSDOS implementation is in dosfns.c. */
3301 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3304 system_process_attributes (Lisp_Object pid
)
3309 #endif /* !defined (WINDOWSNT) */