1 /* Interfaces to system-dependent kernel and library entries.
2 Copyright (C) 1985-1988, 1993-1995, 1999-2013 Free Software
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 /* Check that CHILD is a child process that has not been reaped,
293 and that STATUS and OPTIONS are valid. Otherwise abort,
294 as continuing after this internal error could cause Emacs to
295 become confused and kill innocent-victim processes. */
299 /* Note: the MS-Windows emulation of waitpid calls QUIT
305 /* If successful and status is requested, tell wait_reading_process_output
306 that it needs to wake up and look around. */
307 if (pid
&& status
&& input_available_clear_time
)
308 *input_available_clear_time
= make_emacs_time (0, 0);
313 /* Wait for the subprocess with process id CHILD to terminate.
314 CHILD must be a child process that has not been reaped.
315 If STATUS is non-null, store the waitpid-style exit status into *STATUS
316 and tell wait_reading_process_output that it needs to look around.
317 If INTERRUPTIBLE, this function is interruptible by a signal. */
319 wait_for_termination (pid_t child
, int *status
, bool interruptible
)
321 get_child_status (child
, status
, 0, interruptible
);
324 /* Report whether the subprocess with process id CHILD has changed status.
325 Termination counts as a change of status.
326 CHILD must be a child process that has not been reaped.
327 If STATUS is non-null, store the waitpid-style exit status into *STATUS
328 and tell wait_reading_process_output that it needs to look around.
329 Use waitpid-style OPTIONS to check status, but do not wait.
331 Return CHILD if successful, 0 if no status is available because
332 the process's state has not changed. */
334 child_status_changed (pid_t child
, int *status
, int options
)
336 return get_child_status (child
, status
, WNOHANG
| options
, 0);
340 * flush any pending output
341 * (may flush input as well; it does not matter the way we use it)
345 flush_pending_output (int channel
)
347 /* FIXME: maybe this function should be removed */
350 /* Set up the terminal at the other end of a pseudo-terminal that
351 we will be controlling an inferior through.
352 It should not echo or do line-editing, since that is done
353 in Emacs. No padding needed for insertion into an Emacs buffer. */
356 child_setup_tty (int out
)
361 emacs_get_tty (out
, &s
);
362 s
.main
.c_oflag
|= OPOST
; /* Enable output postprocessing */
363 s
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL on output */
365 /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html
366 Some versions of GNU Hurd do not have FFDLY? */
368 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
|FFDLY
);
369 /* No output delays */
371 s
.main
.c_oflag
&= ~(NLDLY
|CRDLY
|TABDLY
|BSDLY
|VTDLY
);
372 /* No output delays */
375 s
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
376 s
.main
.c_lflag
|= ISIG
; /* Enable signals */
378 s
.main
.c_iflag
&= ~IUCLC
; /* Disable downcasing on input. */
381 s
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
384 s
.main
.c_oflag
&= ~OLCUC
; /* Disable upcasing on output. */
386 s
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
387 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CSIZE
) | CS8
; /* Don't strip 8th bit */
388 s
.main
.c_cc
[VERASE
] = CDISABLE
; /* disable erase processing */
389 s
.main
.c_cc
[VKILL
] = CDISABLE
; /* disable kill processing */
392 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
395 #ifdef SIGNALS_VIA_CHARACTERS
396 /* the QUIT and INTR character are used in process_send_signal
397 so set them here to something useful. */
398 if (s
.main
.c_cc
[VQUIT
] == CDISABLE
)
399 s
.main
.c_cc
[VQUIT
] = '\\'&037; /* Control-\ */
400 if (s
.main
.c_cc
[VINTR
] == CDISABLE
)
401 s
.main
.c_cc
[VINTR
] = 'C'&037; /* Control-C */
402 #endif /* not SIGNALS_VIA_CHARACTERS */
405 /* Also, PTY overloads NUL and BREAK.
406 don't ignore break, but don't signal either, so it looks like NUL. */
407 s
.main
.c_iflag
&= ~IGNBRK
;
408 s
.main
.c_iflag
&= ~BRKINT
;
409 /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here
410 unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional
411 would force it to 0377. That looks like duplicated code. */
412 s
.main
.c_cflag
= (s
.main
.c_cflag
& ~CBAUD
) | B9600
; /* baud rate sanity */
415 /* We originally enabled ICANON (and set VEOF to 04), and then had
416 process.c send additional EOF chars to flush the output when faced
417 with long lines, but this leads to weird effects when the
418 subprocess has disabled ICANON and ends up seeing those spurious
419 extra EOFs. So we don't send EOFs any more in
420 process.c:send_process. First we tried to disable ICANON by
421 default, so if a subsprocess sets up ICANON, it's his problem (or
422 the Elisp package that talks to it) to deal with lines that are
423 too long. But this disables some features, such as the ability
424 to send EOF signals. So we re-enabled ICANON but there is no
425 more "send eof to flush" going on (which is wrong and unportable
426 in itself). The correct way to handle too much output is to
427 buffer what could not be written and then write it again when
428 select returns ok for writing. This has it own set of
429 problems. Write is now asynchronous, is that a problem? How much
430 do we buffer, and what do we do when that limit is reached? */
432 s
.main
.c_lflag
|= ICANON
; /* Enable line editing and eof processing */
433 s
.main
.c_cc
[VEOF
] = 'D'&037; /* Control-D */
434 #if 0 /* These settings only apply to non-ICANON mode. */
435 s
.main
.c_cc
[VMIN
] = 1;
436 s
.main
.c_cc
[VTIME
] = 0;
439 emacs_set_tty (out
, &s
, 0);
440 #endif /* not WINDOWSNT */
442 #endif /* not MSDOS */
445 /* Record a signal code and the action for it. */
449 struct sigaction action
;
452 static void save_signal_handlers (struct save_signal
*);
453 static void restore_signal_handlers (struct save_signal
*);
455 /* Suspend the Emacs process; give terminal to its superior. */
463 /* On a system where suspending is not implemented,
464 instead fork a subshell and let it talk directly to the terminal
471 /* Fork a subshell. */
476 #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
478 char oldwd
[MAXPATHLEN
+1]; /* Fixed length is safe on MSDOS. */
482 struct save_signal saved_handlers
[5];
484 unsigned char *volatile str_volatile
= 0;
488 saved_handlers
[0].code
= SIGINT
;
489 saved_handlers
[1].code
= SIGQUIT
;
490 saved_handlers
[2].code
= SIGTERM
;
492 saved_handlers
[3].code
= SIGIO
;
493 saved_handlers
[4].code
= 0;
495 saved_handlers
[3].code
= 0;
498 /* Mentioning current_buffer->buffer would mean including buffer.h,
499 which somehow wedges the hp compiler. So instead... */
501 dir
= intern ("default-directory");
502 if (NILP (Fboundp (dir
)))
504 dir
= Fsymbol_value (dir
);
508 dir
= expand_and_dir_to_file (Funhandled_file_name_directory (dir
), Qnil
);
509 str_volatile
= str
= alloca (SCHARS (dir
) + 2);
511 memcpy (str
, SDATA (dir
), len
);
512 if (str
[len
- 1] != '/') str
[len
++] = '/';
518 save_signal_handlers (saved_handlers
);
522 error ("Can't spawn subshell");
529 #ifdef DOS_NT /* MW, Aug 1993 */
530 getcwd (oldwd
, sizeof oldwd
);
532 sh
= (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
535 sh
= (char *) egetenv ("SHELL");
539 /* Use our buffer's default directory for the subshell. */
541 if (str
&& chdir ((char *) str
) != 0)
544 ignore_value (write (1, "Can't chdir\n", 12));
549 close_process_descs (); /* Close Emacs's pipes/ptys */
551 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
553 char *epwd
= getenv ("PWD");
554 char old_pwd
[MAXPATHLEN
+1+4];
556 /* If PWD is set, pass it with corrected value. */
559 strcpy (old_pwd
, epwd
);
560 if (str
[len
- 1] == '/')
562 setenv ("PWD", str
, 1);
565 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
567 putenv (old_pwd
); /* restore previous value */
569 #else /* not MSDOS */
571 /* Waits for process completion */
572 pid
= _spawnlp (_P_WAIT
, sh
, sh
, NULL
);
573 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
575 write (1, "Can't execute subshell", 22);
576 #else /* not WINDOWSNT */
577 execlp (sh
, sh
, (char *) 0);
578 ignore_value (write (1, "Can't execute subshell", 22));
580 #endif /* not WINDOWSNT */
581 #endif /* not MSDOS */
584 /* Do this now if we did not do it before. */
586 save_signal_handlers (saved_handlers
);
590 wait_for_termination (pid
, &status
, 0);
592 restore_signal_handlers (saved_handlers
);
596 save_signal_handlers (struct save_signal
*saved_handlers
)
598 while (saved_handlers
->code
)
600 struct sigaction action
;
601 emacs_sigaction_init (&action
, SIG_IGN
);
602 sigaction (saved_handlers
->code
, &action
, &saved_handlers
->action
);
608 restore_signal_handlers (struct save_signal
*saved_handlers
)
610 while (saved_handlers
->code
)
612 sigaction (saved_handlers
->code
, &saved_handlers
->action
, 0);
618 static int old_fcntl_flags
[MAXDESC
];
625 old_fcntl_flags
[fd
] = fcntl (fd
, F_GETFL
, 0) & ~FASYNC
;
626 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
] | FASYNC
);
627 interrupts_deferred
= 0;
635 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
]);
648 sigemptyset (&unblocked
);
650 sigaddset (&unblocked
, SIGWINCH
);
652 sigaddset (&unblocked
, SIGIO
);
653 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
655 interrupts_deferred
= 0;
660 unrequest_sigio (void)
668 sigemptyset (&blocked
);
670 sigaddset (&blocked
, SIGWINCH
);
672 sigaddset (&blocked
, SIGIO
);
673 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
674 interrupts_deferred
= 1;
682 signal (SIGIO
, SIG_IGN
);
687 /* Saving and restoring the process group of Emacs's terminal. */
689 /* The process group of which Emacs was a member when it initially
692 If Emacs was in its own process group (i.e. inherited_pgroup ==
693 getpid ()), then we know we're running under a shell with job
694 control (Emacs would never be run as part of a pipeline).
697 If Emacs was not in its own process group, then we know we're
698 running under a shell (or a caller) that doesn't know how to
699 separate itself from Emacs (like sh). Emacs must be in its own
700 process group in order to receive SIGIO correctly. In this
701 situation, we put ourselves in our own pgroup, forcibly set the
702 tty's pgroup to our pgroup, and make sure to restore and reinstate
703 the tty's pgroup just like any other terminal setting. If
704 inherited_group was not the tty's pgroup, then we'll get a
705 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
706 it goes foreground in the future, which is what should happen. */
708 static pid_t inherited_pgroup
;
711 init_foreground_group (void)
713 pid_t pgrp
= getpgrp ();
714 inherited_pgroup
= getpid () == pgrp
? 0 : pgrp
;
717 /* Block and unblock SIGTTOU. */
720 block_tty_out_signal (void)
724 sigemptyset (&blocked
);
725 sigaddset (&blocked
, SIGTTOU
);
726 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
731 unblock_tty_out_signal (void)
734 pthread_sigmask (SIG_SETMASK
, &empty_mask
, 0);
738 /* Safely set a controlling terminal FD's process group to PGID.
739 If we are not in the foreground already, POSIX requires tcsetpgrp
740 to deliver a SIGTTOU signal, which would stop us. This is an
741 annoyance, so temporarily ignore the signal.
743 In practice, platforms lacking SIGTTOU also lack tcsetpgrp, so
744 skip all this unless SIGTTOU is defined. */
746 tcsetpgrp_without_stopping (int fd
, pid_t pgid
)
750 block_tty_out_signal ();
751 tcsetpgrp (fd
, pgid
);
752 unblock_tty_out_signal ();
757 /* Split off the foreground process group to Emacs alone. When we are
758 in the foreground, but not started in our own process group,
759 redirect the tty device handle FD to point to our own process
760 group. FD must be the file descriptor of the controlling tty. */
762 narrow_foreground_group (int fd
)
764 if (inherited_pgroup
&& setpgid (0, 0) == 0)
765 tcsetpgrp_without_stopping (fd
, getpid ());
768 /* Set the tty to our original foreground group. */
770 widen_foreground_group (int fd
)
772 if (inherited_pgroup
&& setpgid (0, inherited_pgroup
) == 0)
773 tcsetpgrp_without_stopping (fd
, inherited_pgroup
);
776 /* Getting and setting emacs_tty structures. */
778 /* Set *TC to the parameters associated with the terminal FD.
779 Return zero if all's well, or -1 if we ran into an error we
780 couldn't deal with. */
782 emacs_get_tty (int fd
, struct emacs_tty
*settings
)
784 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
786 /* We have those nifty POSIX tcmumbleattr functions. */
787 memset (&settings
->main
, 0, sizeof (settings
->main
));
788 if (tcgetattr (fd
, &settings
->main
) < 0)
792 /* We have survived the tempest. */
797 /* Set the parameters of the tty on FD according to the contents of
798 *SETTINGS. If FLUSHP is non-zero, we discard input.
799 Return 0 if all went well, and -1 if anything failed. */
802 emacs_set_tty (int fd
, struct emacs_tty
*settings
, int flushp
)
804 /* Set the primary parameters - baud rate, character size, etcetera. */
807 /* We have those nifty POSIX tcmumbleattr functions.
808 William J. Smith <wjs@wiis.wang.com> writes:
809 "POSIX 1003.1 defines tcsetattr to return success if it was
810 able to perform any of the requested actions, even if some
811 of the requested actions could not be performed.
812 We must read settings back to ensure tty setup properly.
813 AIX requires this to keep tty from hanging occasionally." */
814 /* This make sure that we don't loop indefinitely in here. */
815 for (i
= 0 ; i
< 10 ; i
++)
816 if (tcsetattr (fd
, flushp
? TCSAFLUSH
: TCSADRAIN
, &settings
->main
) < 0)
827 memset (&new, 0, sizeof (new));
828 /* Get the current settings, and see if they're what we asked for. */
829 tcgetattr (fd
, &new);
830 /* We cannot use memcmp on the whole structure here because under
831 * aix386 the termios structure has some reserved field that may
834 if ( new.c_iflag
== settings
->main
.c_iflag
835 && new.c_oflag
== settings
->main
.c_oflag
836 && new.c_cflag
== settings
->main
.c_cflag
837 && new.c_lflag
== settings
->main
.c_lflag
838 && memcmp (new.c_cc
, settings
->main
.c_cc
, NCCS
) == 0)
845 /* We have survived the tempest. */
852 static int old_fcntl_owner
[MAXDESC
];
853 #endif /* F_SETOWN */
855 /* This may also be defined in stdio,
856 but if so, this does no harm,
857 and using the same name avoids wasting the other one's space. */
860 unsigned char _sobuf
[BUFSIZ
+8];
865 /* Initialize the terminal mode on all tty devices that are currently
869 init_all_sys_modes (void)
871 struct tty_display_info
*tty
;
872 for (tty
= tty_list
; tty
; tty
= tty
->next
)
873 init_sys_modes (tty
);
876 /* Initialize the terminal mode on the given tty device. */
879 init_sys_modes (struct tty_display_info
*tty_out
)
881 struct emacs_tty tty
;
882 Lisp_Object terminal
;
884 Vtty_erase_char
= Qnil
;
889 if (!tty_out
->output
)
890 return; /* The tty is suspended. */
892 narrow_foreground_group (fileno (tty_out
->input
));
894 if (! tty_out
->old_tty
)
895 tty_out
->old_tty
= xmalloc (sizeof *tty_out
->old_tty
);
897 emacs_get_tty (fileno (tty_out
->input
), tty_out
->old_tty
);
899 tty
= *tty_out
->old_tty
;
901 #if !defined (DOS_NT)
902 XSETINT (Vtty_erase_char
, tty
.main
.c_cc
[VERASE
]);
904 tty
.main
.c_iflag
|= (IGNBRK
); /* Ignore break condition */
905 tty
.main
.c_iflag
&= ~ICRNL
; /* Disable map of CR to NL on input */
906 #ifdef INLCR /* I'm just being cautious,
907 since I can't check how widespread INLCR is--rms. */
908 tty
.main
.c_iflag
&= ~INLCR
; /* Disable map of NL to CR on input */
911 tty
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
913 tty
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
914 tty
.main
.c_lflag
&= ~ICANON
; /* Disable erase/kill processing */
916 tty
.main
.c_lflag
&= ~IEXTEN
; /* Disable other editing characters. */
918 tty
.main
.c_lflag
|= ISIG
; /* Enable signals */
919 if (tty_out
->flow_control
)
921 tty
.main
.c_iflag
|= IXON
; /* Enable start/stop output control */
923 tty
.main
.c_iflag
&= ~IXANY
;
927 tty
.main
.c_iflag
&= ~IXON
; /* Disable start/stop output control */
928 tty
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL
930 tty
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
932 if (tty_out
->meta_key
)
934 tty
.main
.c_cflag
|= CS8
; /* allow 8th bit on input */
935 tty
.main
.c_cflag
&= ~PARENB
;/* Don't check parity */
939 XSETTERMINAL(terminal
, tty_out
->terminal
);
940 if (!NILP (Fcontrolling_tty_p (terminal
)))
942 tty
.main
.c_cc
[VINTR
] = quit_char
; /* C-g (usually) gives SIGINT */
943 /* Set up C-g for both SIGQUIT and SIGINT.
944 We don't know which we will get, but we handle both alike
945 so which one it really gives us does not matter. */
946 tty
.main
.c_cc
[VQUIT
] = quit_char
;
950 /* We normally don't get interrupt or quit signals from tty
951 devices other than our controlling terminal; therefore,
952 we must handle C-g as normal input. Unfortunately, this
953 means that the interrupt and quit feature must be
954 disabled on secondary ttys, or we would not even see the
957 Note that even though emacsclient could have special code
958 to pass SIGINT to Emacs, we should _not_ enable
959 interrupt/quit keys for emacsclient frames. This means
960 that we can't break out of loops in C code from a
961 secondary tty frame, but we can always decide what
962 display the C-g came from, which is more important from a
963 usability point of view. (Consider the case when two
964 people work together using the same Emacs instance.) */
965 tty
.main
.c_cc
[VINTR
] = CDISABLE
;
966 tty
.main
.c_cc
[VQUIT
] = CDISABLE
;
968 tty
.main
.c_cc
[VMIN
] = 1; /* Input should wait for at least 1 char */
969 tty
.main
.c_cc
[VTIME
] = 0; /* no matter how long that takes. */
971 tty
.main
.c_cc
[VSWTCH
] = CDISABLE
; /* Turn off shell layering use
976 tty
.main
.c_cc
[VSUSP
] = CDISABLE
; /* Turn off handling of C-z. */
979 tty
.main
.c_cc
[V_DSUSP
] = CDISABLE
; /* Turn off handling of C-y. */
981 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
982 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
985 tty
.main
.c_cc
[VLNEXT
] = CDISABLE
;
988 tty
.main
.c_cc
[VREPRINT
] = CDISABLE
;
989 #endif /* VREPRINT */
991 tty
.main
.c_cc
[VWERASE
] = CDISABLE
;
994 tty
.main
.c_cc
[VDISCARD
] = CDISABLE
;
995 #endif /* VDISCARD */
997 if (tty_out
->flow_control
)
1000 tty
.main
.c_cc
[VSTART
] = '\021';
1003 tty
.main
.c_cc
[VSTOP
] = '\023';
1009 tty
.main
.c_cc
[VSTART
] = CDISABLE
;
1012 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1017 tty
.main
.c_cc
[VSTRT
] = CDISABLE
;
1018 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1019 tty
.main
.c_cc
[VSUSP
] = CDISABLE
;
1020 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1021 if (tty_out
->flow_control
)
1024 tty
.main
.c_cc
[VSTART
] = '\021';
1027 tty
.main
.c_cc
[VSTOP
] = '\023';
1030 /* Also, PTY overloads NUL and BREAK.
1031 don't ignore break, but don't signal either, so it looks like NUL.
1032 This really serves a purpose only if running in an XTERM window
1033 or via TELNET or the like, but does no harm elsewhere. */
1034 tty
.main
.c_iflag
&= ~IGNBRK
;
1035 tty
.main
.c_iflag
&= ~BRKINT
;
1037 #endif /* not DOS_NT */
1039 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
1040 if (!tty_out
->term_initted
)
1041 internal_terminal_init ();
1042 dos_ttraw (tty_out
);
1045 emacs_set_tty (fileno (tty_out
->input
), &tty
, 0);
1047 /* This code added to insure that, if flow-control is not to be used,
1048 we have an unlocked terminal at the start. */
1051 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TCXONC
, 1);
1054 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TIOCSTART
, 0);
1057 #if !defined (DOS_NT)
1059 if (!tty_out
->flow_control
) tcflow (fileno (tty_out
->input
), TCOON
);
1064 if (interrupt_input
)
1066 old_fcntl_owner
[fileno (tty_out
->input
)] =
1067 fcntl (fileno (tty_out
->input
), F_GETOWN
, 0);
1068 fcntl (fileno (tty_out
->input
), F_SETOWN
, getpid ());
1069 init_sigio (fileno (tty_out
->input
));
1071 if (gpm_tty
== tty_out
)
1073 /* Arrange for mouse events to give us SIGIO signals. */
1074 fcntl (gpm_fd
, F_SETOWN
, getpid ());
1075 fcntl (gpm_fd
, F_SETFL
, fcntl (gpm_fd
, F_GETFL
, 0) | O_NONBLOCK
);
1076 init_sigio (gpm_fd
);
1078 #endif /* HAVE_GPM */
1080 #endif /* F_GETOWN */
1083 /* This symbol is defined on recent USG systems.
1084 Someone says without this call USG won't really buffer the file
1085 even with a call to setbuf. */
1086 setvbuf (tty_out
->output
, (char *) _sobuf
, _IOFBF
, sizeof _sobuf
);
1088 setbuf (tty_out
->output
, (char *) _sobuf
);
1091 if (tty_out
->terminal
->set_terminal_modes_hook
)
1092 tty_out
->terminal
->set_terminal_modes_hook (tty_out
->terminal
);
1094 if (!tty_out
->term_initted
)
1096 Lisp_Object tail
, frame
;
1097 FOR_EACH_FRAME (tail
, frame
)
1099 /* XXX This needs to be revised. */
1100 if (FRAME_TERMCAP_P (XFRAME (frame
))
1101 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1102 init_frame_faces (XFRAME (frame
));
1106 if (tty_out
->term_initted
&& no_redraw_on_reenter
)
1108 /* We used to call "direct_output_forward_char(0)" here,
1109 but it's not clear why, since it may not do anything anyway. */
1113 Lisp_Object tail
, frame
;
1115 FOR_EACH_FRAME (tail
, frame
)
1117 if ((FRAME_TERMCAP_P (XFRAME (frame
))
1118 || FRAME_MSDOS_P (XFRAME (frame
)))
1119 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1120 FRAME_GARBAGED_P (XFRAME (frame
)) = 1;
1124 tty_out
->term_initted
= 1;
1127 /* Return nonzero if safe to use tabs in output.
1128 At the time this is called, init_sys_modes has not been done yet. */
1131 tabs_safe_p (int fd
)
1133 struct emacs_tty etty
;
1135 emacs_get_tty (fd
, &etty
);
1138 return ((etty
.main
.c_oflag
& TABDLY
) != TAB3
);
1139 #else /* not TABDLY */
1141 #endif /* not TABDLY */
1147 /* Get terminal size from system.
1148 Store number of lines into *HEIGHTP and width into *WIDTHP.
1149 We store 0 if there's no valid information. */
1152 get_tty_size (int fd
, int *widthp
, int *heightp
)
1154 #if defined TIOCGWINSZ
1157 struct winsize size
;
1159 if (ioctl (fd
, TIOCGWINSZ
, &size
) == -1)
1160 *widthp
= *heightp
= 0;
1163 *widthp
= size
.ws_col
;
1164 *heightp
= size
.ws_row
;
1167 #elif defined TIOCGSIZE
1169 /* SunOS - style. */
1170 struct ttysize size
;
1172 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1173 *widthp
= *heightp
= 0;
1176 *widthp
= size
.ts_cols
;
1177 *heightp
= size
.ts_lines
;
1180 #elif defined WINDOWSNT
1182 CONSOLE_SCREEN_BUFFER_INFO info
;
1183 if (GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE
), &info
))
1185 *widthp
= info
.srWindow
.Right
- info
.srWindow
.Left
+ 1;
1186 *heightp
= info
.srWindow
.Bottom
- info
.srWindow
.Top
+ 1;
1189 *widthp
= *heightp
= 0;
1193 *widthp
= ScreenCols ();
1194 *heightp
= ScreenRows ();
1196 #else /* system doesn't know size */
1204 /* Set the logical window size associated with descriptor FD
1205 to HEIGHT and WIDTH. This is used mainly with ptys. */
1208 set_window_size (int fd
, int height
, int width
)
1213 struct winsize size
;
1214 size
.ws_row
= height
;
1215 size
.ws_col
= width
;
1217 if (ioctl (fd
, TIOCSWINSZ
, &size
) == -1)
1218 return 0; /* error */
1225 /* SunOS - style. */
1226 struct ttysize size
;
1227 size
.ts_lines
= height
;
1228 size
.ts_cols
= width
;
1230 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1236 #endif /* not SunOS-style */
1237 #endif /* not BSD-style */
1242 /* Prepare all terminal devices for exiting Emacs. */
1245 reset_all_sys_modes (void)
1247 struct tty_display_info
*tty
;
1248 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1249 reset_sys_modes (tty
);
1252 /* Prepare the terminal for closing it; move the cursor to the
1253 bottom of the frame, turn off interrupt-driven I/O, etc. */
1256 reset_sys_modes (struct tty_display_info
*tty_out
)
1263 if (!tty_out
->term_initted
)
1266 if (!tty_out
->output
)
1267 return; /* The tty is suspended. */
1269 /* Go to and clear the last line of the terminal. */
1271 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1273 /* Code adapted from tty_clear_end_of_line. */
1274 if (tty_out
->TS_clr_line
)
1276 emacs_tputs (tty_out
, tty_out
->TS_clr_line
, 1, cmputc
);
1279 { /* have to do it the hard way */
1281 tty_turn_off_insert (tty_out
);
1283 for (i
= curX (tty_out
); i
< FrameCols (tty_out
) - 1; i
++)
1285 fputc (' ', tty_out
->output
);
1289 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1290 fflush (tty_out
->output
);
1292 if (tty_out
->terminal
->reset_terminal_modes_hook
)
1293 tty_out
->terminal
->reset_terminal_modes_hook (tty_out
->terminal
);
1296 /* Avoid possible loss of output when changing terminal modes. */
1297 fsync (fileno (tty_out
->output
));
1302 if (interrupt_input
)
1304 reset_sigio (fileno (tty_out
->input
));
1305 fcntl (fileno (tty_out
->input
), F_SETOWN
,
1306 old_fcntl_owner
[fileno (tty_out
->input
)]);
1308 #endif /* F_SETOWN */
1309 fcntl (fileno (tty_out
->input
), F_SETFL
,
1310 fcntl (fileno (tty_out
->input
), F_GETFL
, 0) & ~O_NONBLOCK
);
1313 if (tty_out
->old_tty
)
1314 while (emacs_set_tty (fileno (tty_out
->input
),
1315 tty_out
->old_tty
, 0) < 0 && errno
== EINTR
)
1318 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
1322 widen_foreground_group (fileno (tty_out
->input
));
1327 /* Set up the proper status flags for use of a pty. */
1332 /* I'm told that TOICREMOTE does not mean control chars
1333 "can't be sent" but rather that they don't have
1334 input-editing or signaling effects.
1335 That should be good, because we have other ways
1336 to do those things in Emacs.
1337 However, telnet mode seems not to work on 4.2.
1338 So TIOCREMOTE is turned off now. */
1340 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
1341 will hang. In particular, the "timeout" feature (which
1342 causes a read to return if there is no data available)
1343 does this. Also it is known that telnet mode will hang
1344 in such a way that Emacs must be stopped (perhaps this
1345 is the same problem).
1347 If TIOCREMOTE is turned off, then there is a bug in
1348 hp-ux which sometimes loses data. Apparently the
1349 code which blocks the master process when the internal
1350 buffer fills up does not work. Other than this,
1351 though, everything else seems to work fine.
1353 Since the latter lossage is more benign, we may as well
1354 lose that way. -- cph */
1356 #if defined (UNIX98_PTYS)
1359 ioctl (fd
, FIONBIO
, &on
);
1364 #endif /* HAVE_PTYS */
1367 #include <sys/socket.h>
1369 #endif /* HAVE_SOCKETS */
1372 #ifndef HAVE_H_ERRNO
1375 #endif /* TRY_AGAIN */
1378 init_system_name (void)
1380 #ifndef HAVE_GETHOSTNAME
1383 Vsystem_name
= build_string (uts
.nodename
);
1384 #else /* HAVE_GETHOSTNAME */
1385 unsigned int hostname_size
= 256;
1386 char *hostname
= alloca (hostname_size
);
1388 /* Try to get the host name; if the buffer is too short, try
1389 again. Apparently, the only indication gethostname gives of
1390 whether the buffer was large enough is the presence or absence
1391 of a '\0' in the string. Eech. */
1394 gethostname (hostname
, hostname_size
- 1);
1395 hostname
[hostname_size
- 1] = '\0';
1397 /* Was the buffer large enough for the '\0'? */
1398 if (strlen (hostname
) < hostname_size
- 1)
1401 hostname_size
<<= 1;
1402 hostname
= alloca (hostname_size
);
1405 /* Turn the hostname into the official, fully-qualified hostname.
1406 Don't do this if we're going to dump; this can confuse system
1407 libraries on some machines and make the dumped emacs core dump. */
1410 #endif /* not CANNOT_DUMP */
1411 if (! strchr (hostname
, '.'))
1414 #ifdef HAVE_GETADDRINFO
1415 struct addrinfo
*res
;
1416 struct addrinfo hints
;
1419 memset (&hints
, 0, sizeof (hints
));
1420 hints
.ai_socktype
= SOCK_STREAM
;
1421 hints
.ai_flags
= AI_CANONNAME
;
1423 for (count
= 0;; count
++)
1425 if ((ret
= getaddrinfo (hostname
, NULL
, &hints
, &res
)) == 0
1426 || ret
!= EAI_AGAIN
)
1431 Fsleep_for (make_number (1), Qnil
);
1436 struct addrinfo
*it
= res
;
1439 char *fqdn
= it
->ai_canonname
;
1440 if (fqdn
&& strchr (fqdn
, '.')
1441 && strcmp (fqdn
, "localhost.localdomain") != 0)
1447 hostname
= alloca (strlen (it
->ai_canonname
) + 1);
1448 strcpy (hostname
, it
->ai_canonname
);
1452 #else /* !HAVE_GETADDRINFO */
1454 for (count
= 0;; count
++)
1460 hp
= gethostbyname (hostname
);
1462 if (! (hp
== 0 && h_errno
== TRY_AGAIN
))
1469 Fsleep_for (make_number (1), Qnil
);
1474 char *fqdn
= (char *) hp
->h_name
;
1476 if (!strchr (fqdn
, '.'))
1478 /* We still don't have a fully qualified domain name.
1479 Try to find one in the list of alternate names */
1480 char **alias
= hp
->h_aliases
;
1482 && (!strchr (*alias
, '.')
1483 || !strcmp (*alias
, "localhost.localdomain")))
1490 #endif /* !HAVE_GETADDRINFO */
1492 #endif /* HAVE_SOCKETS */
1493 Vsystem_name
= build_string (hostname
);
1494 #endif /* HAVE_GETHOSTNAME */
1497 for (p
= SDATA (Vsystem_name
); *p
; p
++)
1498 if (*p
== ' ' || *p
== '\t')
1503 sigset_t empty_mask
;
1505 static struct sigaction process_fatal_action
;
1508 emacs_sigaction_flags (void)
1511 /* SA_RESTART causes interruptible functions with timeouts (e.g.,
1512 'select') to reset their timeout on some platforms (e.g.,
1513 HP-UX 11), which is not what we want. Also, when Emacs is
1514 interactive, we don't want SA_RESTART because we need to poll
1515 for pending input so we need long-running syscalls to be interrupted
1516 after a signal that sets pending_signals.
1518 Non-interactive keyboard input goes through stdio, where we
1519 always want restartable system calls. */
1526 /* Store into *ACTION a signal action suitable for Emacs, with handler
1529 emacs_sigaction_init (struct sigaction
*action
, signal_handler_t handler
)
1531 sigemptyset (&action
->sa_mask
);
1533 /* When handling a signal, block nonfatal system signals that are caught
1534 by Emacs. This makes race conditions less likely. */
1535 sigaddset (&action
->sa_mask
, SIGALRM
);
1536 sigaddset (&action
->sa_mask
, SIGCHLD
);
1538 sigaddset (&action
->sa_mask
, SIGDANGER
);
1540 #ifdef PROFILER_CPU_SUPPORT
1541 sigaddset (&action
->sa_mask
, SIGPROF
);
1544 sigaddset (&action
->sa_mask
, SIGWINCH
);
1546 if (! noninteractive
)
1548 sigaddset (&action
->sa_mask
, SIGINT
);
1549 sigaddset (&action
->sa_mask
, SIGQUIT
);
1551 sigaddset (&action
->sa_mask
, SIGIO
);
1555 if (! IEEE_FLOATING_POINT
)
1556 sigaddset (&action
->sa_mask
, SIGFPE
);
1558 action
->sa_handler
= handler
;
1559 action
->sa_flags
= emacs_sigaction_flags ();
1562 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1563 static pthread_t main_thread
;
1566 /* SIG has arrived at the current process. Deliver it to the main
1567 thread, which should handle it with HANDLER.
1569 If we are on the main thread, handle the signal SIG with HANDLER.
1570 Otherwise, redirect the signal to the main thread, blocking it from
1571 this thread. POSIX says any thread can receive a signal that is
1572 associated with a process, process group, or asynchronous event.
1573 On GNU/Linux that is not true, but for other systems (FreeBSD at
1576 deliver_process_signal (int sig
, signal_handler_t handler
)
1578 /* Preserve errno, to avoid race conditions with signal handlers that
1579 might change errno. Races can occur even in single-threaded hosts. */
1580 int old_errno
= errno
;
1582 bool on_main_thread
= true;
1583 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1584 if (! pthread_equal (pthread_self (), main_thread
))
1587 sigemptyset (&blocked
);
1588 sigaddset (&blocked
, sig
);
1589 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
1590 pthread_kill (main_thread
, sig
);
1591 on_main_thread
= false;
1600 /* Static location to save a fatal backtrace in a thread.
1601 FIXME: If two subsidiary threads fail simultaneously, the resulting
1602 backtrace may be garbage. */
1603 enum { BACKTRACE_LIMIT_MAX
= 500 };
1604 static void *thread_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
1605 static int thread_backtrace_npointers
;
1607 /* SIG has arrived at the current thread.
1608 If we are on the main thread, handle the signal SIG with HANDLER.
1609 Otherwise, this is a fatal error in the handling thread. */
1611 deliver_thread_signal (int sig
, signal_handler_t handler
)
1613 int old_errno
= errno
;
1615 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1616 if (! pthread_equal (pthread_self (), main_thread
))
1618 thread_backtrace_npointers
1619 = backtrace (thread_backtrace_buffer
, BACKTRACE_LIMIT_MAX
);
1620 sigaction (sig
, &process_fatal_action
, 0);
1621 pthread_kill (main_thread
, sig
);
1623 /* Avoid further damage while the main thread is exiting. */
1625 sigsuspend (&empty_mask
);
1633 #if !HAVE_DECL_SYS_SIGLIST
1635 # ifdef _sys_siglist
1636 # define sys_siglist _sys_siglist
1638 # define sys_siglist my_sys_siglist
1639 static char const *sys_siglist
[NSIG
];
1644 # define sys_siglist_entries _sys_nsig
1646 # define sys_siglist_entries NSIG
1649 /* Handle bus errors, invalid instruction, etc. */
1651 handle_fatal_signal (int sig
)
1653 terminate_due_to_signal (sig
, 40);
1657 deliver_fatal_signal (int sig
)
1659 deliver_process_signal (sig
, handle_fatal_signal
);
1663 deliver_fatal_thread_signal (int sig
)
1665 deliver_thread_signal (sig
, handle_fatal_signal
);
1668 static _Noreturn
void
1669 handle_arith_signal (int sig
)
1671 pthread_sigmask (SIG_SETMASK
, &empty_mask
, 0);
1672 xsignal0 (Qarith_error
);
1676 deliver_arith_signal (int sig
)
1678 deliver_thread_signal (sig
, handle_arith_signal
);
1683 /* Handler for SIGDANGER. */
1685 handle_danger_signal (int sig
)
1687 malloc_warning ("Operating system warns that virtual memory is running low.\n");
1689 /* It might be unsafe to call do_auto_save now. */
1690 force_auto_save_soon ();
1694 deliver_danger_signal (int sig
)
1696 deliver_process_signal (sig
, handle_danger_signal
);
1700 /* Treat SIG as a terminating signal, unless it is already ignored and
1701 we are in --batch mode. Among other things, this makes nohup work. */
1703 maybe_fatal_sig (int sig
)
1705 bool catch_sig
= !noninteractive
;
1708 struct sigaction old_action
;
1709 sigaction (sig
, 0, &old_action
);
1710 catch_sig
= old_action
.sa_handler
!= SIG_IGN
;
1713 sigaction (sig
, &process_fatal_action
, 0);
1717 init_signals (bool dumping
)
1719 struct sigaction thread_fatal_action
;
1720 struct sigaction action
;
1722 sigemptyset (&empty_mask
);
1724 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1725 main_thread
= pthread_self ();
1728 #if !HAVE_DECL_SYS_SIGLIST && !defined _sys_siglist
1731 sys_siglist
[SIGABRT
] = "Aborted";
1733 sys_siglist
[SIGAIO
] = "LAN I/O interrupt";
1735 sys_siglist
[SIGALRM
] = "Alarm clock";
1737 sys_siglist
[SIGBUS
] = "Bus error";
1739 sys_siglist
[SIGCHLD
] = "Child status changed";
1741 sys_siglist
[SIGCONT
] = "Continued";
1744 sys_siglist
[SIGDANGER
] = "Swap space dangerously low";
1747 sys_siglist
[SIGDGNOTIFY
] = "Notification message in queue";
1750 sys_siglist
[SIGEMT
] = "Emulation trap";
1752 sys_siglist
[SIGFPE
] = "Arithmetic exception";
1754 sys_siglist
[SIGFREEZE
] = "SIGFREEZE";
1757 sys_siglist
[SIGGRANT
] = "Monitor mode granted";
1759 sys_siglist
[SIGHUP
] = "Hangup";
1760 sys_siglist
[SIGILL
] = "Illegal instruction";
1761 sys_siglist
[SIGINT
] = "Interrupt";
1763 sys_siglist
[SIGIO
] = "I/O possible";
1766 sys_siglist
[SIGIOINT
] = "I/O intervention required";
1769 sys_siglist
[SIGIOT
] = "IOT trap";
1771 sys_siglist
[SIGKILL
] = "Killed";
1773 sys_siglist
[SIGLOST
] = "Resource lost";
1776 sys_siglist
[SIGLWP
] = "SIGLWP";
1779 sys_siglist
[SIGMSG
] = "Monitor mode data available";
1782 sys_siglist
[SIGWIND
] = "SIGPHONE";
1784 sys_siglist
[SIGPIPE
] = "Broken pipe";
1786 sys_siglist
[SIGPOLL
] = "Pollable event occurred";
1789 sys_siglist
[SIGPROF
] = "Profiling timer expired";
1792 sys_siglist
[SIGPTY
] = "PTY I/O interrupt";
1795 sys_siglist
[SIGPWR
] = "Power-fail restart";
1797 sys_siglist
[SIGQUIT
] = "Quit";
1799 sys_siglist
[SIGRETRACT
] = "Need to relinquish monitor mode";
1802 sys_siglist
[SIGSAK
] = "Secure attention";
1804 sys_siglist
[SIGSEGV
] = "Segmentation violation";
1806 sys_siglist
[SIGSOUND
] = "Sound completed";
1809 sys_siglist
[SIGSTOP
] = "Stopped (signal)";
1812 sys_siglist
[SIGSTP
] = "Stopped (user)";
1815 sys_siglist
[SIGSYS
] = "Bad argument to system call";
1817 sys_siglist
[SIGTERM
] = "Terminated";
1819 sys_siglist
[SIGTHAW
] = "SIGTHAW";
1822 sys_siglist
[SIGTRAP
] = "Trace/breakpoint trap";
1825 sys_siglist
[SIGTSTP
] = "Stopped (user)";
1828 sys_siglist
[SIGTTIN
] = "Stopped (tty input)";
1831 sys_siglist
[SIGTTOU
] = "Stopped (tty output)";
1834 sys_siglist
[SIGURG
] = "Urgent I/O condition";
1837 sys_siglist
[SIGUSR1
] = "User defined signal 1";
1840 sys_siglist
[SIGUSR2
] = "User defined signal 2";
1843 sys_siglist
[SIGVTALRM
] = "Virtual timer expired";
1846 sys_siglist
[SIGWAITING
] = "Process's LWPs are blocked";
1849 sys_siglist
[SIGWINCH
] = "Window size changed";
1852 sys_siglist
[SIGWIND
] = "SIGWIND";
1855 sys_siglist
[SIGXCPU
] = "CPU time limit exceeded";
1858 sys_siglist
[SIGXFSZ
] = "File size limit exceeded";
1861 #endif /* !HAVE_DECL_SYS_SIGLIST && !_sys_siglist */
1863 /* Don't alter signal handlers if dumping. On some machines,
1864 changing signal handlers sets static data that would make signals
1865 fail to work right when the dumped Emacs is run. */
1869 sigfillset (&process_fatal_action
.sa_mask
);
1870 process_fatal_action
.sa_handler
= deliver_fatal_signal
;
1871 process_fatal_action
.sa_flags
= emacs_sigaction_flags ();
1873 sigfillset (&thread_fatal_action
.sa_mask
);
1874 thread_fatal_action
.sa_handler
= deliver_fatal_thread_signal
;
1875 thread_fatal_action
.sa_flags
= process_fatal_action
.sa_flags
;
1877 /* SIGINT may need special treatment on MS-Windows. See
1878 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1879 Please update the doc of kill-emacs, kill-emacs-hook, and
1880 NEWS if you change this. */
1882 maybe_fatal_sig (SIGHUP
);
1883 maybe_fatal_sig (SIGINT
);
1884 maybe_fatal_sig (SIGTERM
);
1886 /* Emacs checks for write errors, so it can safely ignore SIGPIPE.
1887 However, in batch mode leave SIGPIPE alone, as that causes Emacs
1888 to behave more like typical batch applications do. */
1889 if (! noninteractive
)
1890 signal (SIGPIPE
, SIG_IGN
);
1892 sigaction (SIGQUIT
, &process_fatal_action
, 0);
1893 sigaction (SIGILL
, &thread_fatal_action
, 0);
1894 sigaction (SIGTRAP
, &thread_fatal_action
, 0);
1896 /* Typically SIGFPE is thread-specific and is fatal, like SIGILL.
1897 But on a non-IEEE host SIGFPE can come from a trap in the Lisp
1898 interpreter's floating point operations, so treat SIGFPE as an
1899 arith-error if it arises in the main thread. */
1900 if (IEEE_FLOATING_POINT
)
1901 sigaction (SIGFPE
, &thread_fatal_action
, 0);
1904 emacs_sigaction_init (&action
, deliver_arith_signal
);
1905 sigaction (SIGFPE
, &action
, 0);
1909 add_user_signal (SIGUSR1
, "sigusr1");
1912 add_user_signal (SIGUSR2
, "sigusr2");
1914 sigaction (SIGABRT
, &thread_fatal_action
, 0);
1916 sigaction (SIGPRE
, &thread_fatal_action
, 0);
1919 sigaction (SIGORE
, &thread_fatal_action
, 0);
1922 sigaction (SIGUME
, &thread_fatal_action
, 0);
1925 sigaction (SIGDLK
, &process_fatal_action
, 0);
1928 sigaction (SIGCPULIM
, &process_fatal_action
, 0);
1931 sigaction (SIGIOT
, &thread_fatal_action
, 0);
1934 sigaction (SIGEMT
, &thread_fatal_action
, 0);
1937 sigaction (SIGBUS
, &thread_fatal_action
, 0);
1939 sigaction (SIGSEGV
, &thread_fatal_action
, 0);
1941 sigaction (SIGSYS
, &thread_fatal_action
, 0);
1943 sigaction (SIGTERM
, &process_fatal_action
, 0);
1945 signal (SIGPROF
, SIG_IGN
);
1948 sigaction (SIGVTALRM
, &process_fatal_action
, 0);
1951 sigaction (SIGXCPU
, &process_fatal_action
, 0);
1954 sigaction (SIGXFSZ
, &process_fatal_action
, 0);
1958 /* This just means available memory is getting low. */
1959 emacs_sigaction_init (&action
, deliver_danger_signal
);
1960 sigaction (SIGDANGER
, &action
, 0);
1963 /* AIX-specific signals. */
1965 sigaction (SIGGRANT
, &process_fatal_action
, 0);
1968 sigaction (SIGMIGRATE
, &process_fatal_action
, 0);
1971 sigaction (SIGMSG
, &process_fatal_action
, 0);
1974 sigaction (SIGRETRACT
, &process_fatal_action
, 0);
1977 sigaction (SIGSAK
, &process_fatal_action
, 0);
1980 sigaction (SIGSOUND
, &process_fatal_action
, 0);
1983 sigaction (SIGTALRM
, &thread_fatal_action
, 0);
1993 /* Figure out how many bits the system's random number generator uses.
1994 `random' and `lrand48' are assumed to return 31 usable bits.
1995 BSD `rand' returns a 31 bit value but the low order bits are unusable;
1996 so we'll shift it and treat it like the 15-bit USG `rand'. */
2000 # define RAND_BITS 31
2001 # else /* !HAVE_RANDOM */
2002 # ifdef HAVE_LRAND48
2003 # define RAND_BITS 31
2004 # define random lrand48
2005 # else /* !HAVE_LRAND48 */
2006 # define RAND_BITS 15
2007 # if RAND_MAX == 32767
2008 # define random rand
2009 # else /* RAND_MAX != 32767 */
2010 # if RAND_MAX == 2147483647
2011 # define random() (rand () >> 16)
2012 # else /* RAND_MAX != 2147483647 */
2014 # define random rand
2016 # define random() (rand () >> 16)
2018 # endif /* RAND_MAX != 2147483647 */
2019 # endif /* RAND_MAX != 32767 */
2020 # endif /* !HAVE_LRAND48 */
2021 # endif /* !HAVE_RANDOM */
2022 #endif /* !RAND_BITS */
2025 seed_random (void *seed
, ptrdiff_t seed_size
)
2027 #if defined HAVE_RANDOM || ! defined HAVE_LRAND48
2028 unsigned int arg
= 0;
2032 unsigned char *argp
= (unsigned char *) &arg
;
2033 unsigned char *seedp
= seed
;
2035 for (i
= 0; i
< seed_size
; i
++)
2036 argp
[i
% sizeof arg
] ^= seedp
[i
];
2040 # ifdef HAVE_LRAND48
2051 EMACS_TIME t
= current_emacs_time ();
2052 uintmax_t v
= getpid () ^ EMACS_SECS (t
) ^ EMACS_NSECS (t
);
2053 seed_random (&v
, sizeof v
);
2057 * Return a nonnegative random integer out of whatever we've got.
2058 * It contains enough bits to make a random (signed) Emacs fixnum.
2059 * This suffices even for a 64-bit architecture with a 15-bit rand.
2066 for (i
= 0; i
< (FIXNUM_BITS
+ RAND_BITS
- 1) / RAND_BITS
; i
++)
2067 val
= (random () ^ (val
<< RAND_BITS
)
2068 ^ (val
>> (BITS_PER_EMACS_INT
- RAND_BITS
)));
2069 val
^= val
>> (BITS_PER_EMACS_INT
- FIXNUM_BITS
);
2070 return val
& INTMASK
;
2073 #ifndef HAVE_SNPRINTF
2074 /* Approximate snprintf as best we can on ancient hosts that lack it. */
2076 snprintf (char *buf
, size_t bufsize
, char const *format
, ...)
2078 ptrdiff_t size
= min (bufsize
, PTRDIFF_MAX
);
2079 ptrdiff_t nbytes
= size
- 1;
2084 va_start (ap
, format
);
2085 nbytes
= doprnt (buf
, size
, format
, 0, ap
);
2089 if (nbytes
== size
- 1)
2091 /* Calculate the length of the string that would have been created
2092 had the buffer been large enough. */
2093 char stackbuf
[4000];
2095 ptrdiff_t bsize
= sizeof stackbuf
;
2096 va_start (ap
, format
);
2097 nbytes
= evxprintf (&b
, &bsize
, stackbuf
, -1, format
, ap
);
2103 if (INT_MAX
< nbytes
)
2116 /* If a backtrace is available, output the top lines of it to stderr.
2117 Do not output more than BACKTRACE_LIMIT or BACKTRACE_LIMIT_MAX lines.
2118 This function may be called from a signal handler, so it should
2119 not invoke async-unsafe functions like malloc. */
2121 emacs_backtrace (int backtrace_limit
)
2123 void *main_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
2124 int bounded_limit
= min (backtrace_limit
, BACKTRACE_LIMIT_MAX
);
2128 if (thread_backtrace_npointers
)
2130 buffer
= thread_backtrace_buffer
;
2131 npointers
= thread_backtrace_npointers
;
2135 buffer
= main_backtrace_buffer
;
2136 npointers
= backtrace (buffer
, bounded_limit
+ 1);
2141 ignore_value (write (STDERR_FILENO
, "\nBacktrace:\n", 12));
2142 backtrace_symbols_fd (buffer
, npointers
, STDERR_FILENO
);
2143 if (bounded_limit
< npointers
)
2144 ignore_value (write (STDERR_FILENO
, "...\n", 4));
2152 terminate_due_to_signal (SIGABRT
, 40);
2157 emacs_open (const char *path
, int oflag
, int mode
)
2159 register int rtnval
;
2161 while ((rtnval
= open (path
, oflag
, mode
)) == -1
2162 && (errno
== EINTR
))
2168 emacs_close (int fd
)
2171 register int rtnval
;
2173 while ((rtnval
= close (fd
)) == -1
2174 && (errno
== EINTR
))
2177 /* If close is interrupted SunOS 4.1 may or may not have closed the
2178 file descriptor. If it did the second close will fail with
2179 errno = EBADF. That means we have succeeded. */
2180 if (rtnval
== -1 && did_retry
&& errno
== EBADF
)
2186 /* Maximum number of bytes to read or write in a single system call.
2187 This works around a serious bug in Linux kernels before 2.6.16; see
2188 <https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=612839>.
2189 It's likely to work around similar bugs in other operating systems, so do it
2190 on all platforms. Round INT_MAX down to a page size, with the conservative
2191 assumption that page sizes are at most 2**18 bytes (any kernel with a
2192 page size larger than that shouldn't have the bug). */
2193 #ifndef MAX_RW_COUNT
2194 #define MAX_RW_COUNT (INT_MAX >> 18 << 18)
2197 /* Read from FILEDESC to a buffer BUF with size NBYTE, retrying if interrupted.
2198 Return the number of bytes read, which might be less than NBYTE.
2199 On error, set errno and return -1. */
2201 emacs_read (int fildes
, char *buf
, ptrdiff_t nbyte
)
2203 register ssize_t rtnval
;
2205 /* There is no need to check against MAX_RW_COUNT, since no caller ever
2206 passes a size that large to emacs_read. */
2208 while ((rtnval
= read (fildes
, buf
, nbyte
)) == -1
2209 && (errno
== EINTR
))
2214 /* Write to FILEDES from a buffer BUF with size NBYTE, retrying if interrupted
2215 or if a partial write occurs. Return the number of bytes written, setting
2216 errno if this is less than NBYTE. */
2218 emacs_write (int fildes
, const char *buf
, ptrdiff_t nbyte
)
2221 ptrdiff_t bytes_written
;
2227 rtnval
= write (fildes
, buf
, min (nbyte
, MAX_RW_COUNT
));
2233 /* I originally used `QUIT' but that might causes files to
2234 be truncated if you hit C-g in the middle of it. --Stef */
2235 if (pending_signals
)
2236 process_pending_signals ();
2245 bytes_written
+= rtnval
;
2248 return (bytes_written
);
2251 static struct allocator
const emacs_norealloc_allocator
=
2252 { xmalloc
, NULL
, xfree
, memory_full
};
2254 /* Get the symbolic link value of FILENAME. Return a pointer to a
2255 NUL-terminated string. If readlink fails, return NULL and set
2256 errno. If the value fits in INITIAL_BUF, return INITIAL_BUF.
2257 Otherwise, allocate memory and return a pointer to that memory. If
2258 memory allocation fails, diagnose and fail without returning. If
2259 successful, store the length of the symbolic link into *LINKLEN. */
2261 emacs_readlink (char const *filename
, char initial_buf
[READLINK_BUFSIZE
])
2263 return careadlinkat (AT_FDCWD
, filename
, initial_buf
, READLINK_BUFSIZE
,
2264 &emacs_norealloc_allocator
, careadlinkatcwd
);
2267 /* Return a struct timeval that is roughly equivalent to T.
2268 Use the least timeval not less than T.
2269 Return an extremal value if the result would overflow. */
2271 make_timeval (EMACS_TIME t
)
2274 tv
.tv_sec
= t
.tv_sec
;
2275 tv
.tv_usec
= t
.tv_nsec
/ 1000;
2277 if (t
.tv_nsec
% 1000 != 0)
2279 if (tv
.tv_usec
< 999999)
2281 else if (tv
.tv_sec
< TYPE_MAXIMUM (time_t))
2291 /* Set the access and modification time stamps of FD (a.k.a. FILE) to be
2292 ATIME and MTIME, respectively.
2293 FD must be either negative -- in which case it is ignored --
2294 or a file descriptor that is open on FILE.
2295 If FD is nonnegative, then FILE can be NULL. */
2297 set_file_times (int fd
, const char *filename
,
2298 EMACS_TIME atime
, EMACS_TIME mtime
)
2300 struct timespec timespec
[2];
2301 timespec
[0] = atime
;
2302 timespec
[1] = mtime
;
2303 return fdutimens (fd
, filename
, timespec
);
2306 /* Like strsignal, except async-signal-safe, and this function typically
2307 returns a string in the C locale rather than the current locale. */
2309 safe_strsignal (int code
)
2311 char const *signame
= 0;
2313 if (0 <= code
&& code
< sys_siglist_entries
)
2314 signame
= sys_siglist
[code
];
2316 signame
= "Unknown signal";
2322 /* For make-serial-process */
2324 serial_open (char *port
)
2326 int fd
= emacs_open (port
, O_RDWR
| O_NOCTTY
| O_NONBLOCK
, 0);
2329 error ("Could not open %s: %s",
2330 port
, emacs_strerror (errno
));
2333 ioctl (fd
, TIOCEXCL
, (char *) 0);
2339 #if !defined (HAVE_CFMAKERAW)
2340 /* Workaround for targets which are missing cfmakeraw. */
2341 /* Pasted from man page. */
2343 cfmakeraw (struct termios
*termios_p
)
2345 termios_p
->c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
2346 termios_p
->c_oflag
&= ~OPOST
;
2347 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
2348 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
2349 termios_p
->c_cflag
|= CS8
;
2351 #endif /* !defined (HAVE_CFMAKERAW */
2353 #if !defined (HAVE_CFSETSPEED)
2354 /* Workaround for targets which are missing cfsetspeed. */
2356 cfsetspeed (struct termios
*termios_p
, speed_t vitesse
)
2358 return (cfsetispeed (termios_p
, vitesse
)
2359 + cfsetospeed (termios_p
, vitesse
));
2363 /* For serial-process-configure */
2365 serial_configure (struct Lisp_Process
*p
,
2366 Lisp_Object contact
)
2368 Lisp_Object childp2
= Qnil
;
2369 Lisp_Object tem
= Qnil
;
2370 struct termios attr
;
2372 char summary
[4] = "???"; /* This usually becomes "8N1". */
2374 childp2
= Fcopy_sequence (p
->childp
);
2376 /* Read port attributes and prepare default configuration. */
2377 err
= tcgetattr (p
->outfd
, &attr
);
2379 error ("tcgetattr() failed: %s", emacs_strerror (errno
));
2381 #if defined (CLOCAL)
2382 attr
.c_cflag
|= CLOCAL
;
2385 attr
.c_cflag
|= CREAD
;
2388 /* Configure speed. */
2389 if (!NILP (Fplist_member (contact
, QCspeed
)))
2390 tem
= Fplist_get (contact
, QCspeed
);
2392 tem
= Fplist_get (p
->childp
, QCspeed
);
2394 err
= cfsetspeed (&attr
, XINT (tem
));
2396 error ("cfsetspeed(%"pI
"d) failed: %s", XINT (tem
),
2397 emacs_strerror (errno
));
2398 childp2
= Fplist_put (childp2
, QCspeed
, tem
);
2400 /* Configure bytesize. */
2401 if (!NILP (Fplist_member (contact
, QCbytesize
)))
2402 tem
= Fplist_get (contact
, QCbytesize
);
2404 tem
= Fplist_get (p
->childp
, QCbytesize
);
2406 tem
= make_number (8);
2408 if (XINT (tem
) != 7 && XINT (tem
) != 8)
2409 error (":bytesize must be nil (8), 7, or 8");
2410 summary
[0] = XINT (tem
) + '0';
2411 #if defined (CSIZE) && defined (CS7) && defined (CS8)
2412 attr
.c_cflag
&= ~CSIZE
;
2413 attr
.c_cflag
|= ((XINT (tem
) == 7) ? CS7
: CS8
);
2415 /* Don't error on bytesize 8, which should be set by cfmakeraw. */
2416 if (XINT (tem
) != 8)
2417 error ("Bytesize cannot be changed");
2419 childp2
= Fplist_put (childp2
, QCbytesize
, tem
);
2421 /* Configure parity. */
2422 if (!NILP (Fplist_member (contact
, QCparity
)))
2423 tem
= Fplist_get (contact
, QCparity
);
2425 tem
= Fplist_get (p
->childp
, QCparity
);
2426 if (!NILP (tem
) && !EQ (tem
, Qeven
) && !EQ (tem
, Qodd
))
2427 error (":parity must be nil (no parity), `even', or `odd'");
2428 #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK)
2429 attr
.c_cflag
&= ~(PARENB
| PARODD
);
2430 attr
.c_iflag
&= ~(IGNPAR
| INPCK
);
2435 else if (EQ (tem
, Qeven
))
2438 attr
.c_cflag
|= PARENB
;
2439 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2441 else if (EQ (tem
, Qodd
))
2444 attr
.c_cflag
|= (PARENB
| PARODD
);
2445 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2448 /* Don't error on no parity, which should be set by cfmakeraw. */
2450 error ("Parity cannot be configured");
2452 childp2
= Fplist_put (childp2
, QCparity
, tem
);
2454 /* Configure stopbits. */
2455 if (!NILP (Fplist_member (contact
, QCstopbits
)))
2456 tem
= Fplist_get (contact
, QCstopbits
);
2458 tem
= Fplist_get (p
->childp
, QCstopbits
);
2460 tem
= make_number (1);
2462 if (XINT (tem
) != 1 && XINT (tem
) != 2)
2463 error (":stopbits must be nil (1 stopbit), 1, or 2");
2464 summary
[2] = XINT (tem
) + '0';
2465 #if defined (CSTOPB)
2466 attr
.c_cflag
&= ~CSTOPB
;
2467 if (XINT (tem
) == 2)
2468 attr
.c_cflag
|= CSTOPB
;
2470 /* Don't error on 1 stopbit, which should be set by cfmakeraw. */
2471 if (XINT (tem
) != 1)
2472 error ("Stopbits cannot be configured");
2474 childp2
= Fplist_put (childp2
, QCstopbits
, tem
);
2476 /* Configure flowcontrol. */
2477 if (!NILP (Fplist_member (contact
, QCflowcontrol
)))
2478 tem
= Fplist_get (contact
, QCflowcontrol
);
2480 tem
= Fplist_get (p
->childp
, QCflowcontrol
);
2481 if (!NILP (tem
) && !EQ (tem
, Qhw
) && !EQ (tem
, Qsw
))
2482 error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
2483 #if defined (CRTSCTS)
2484 attr
.c_cflag
&= ~CRTSCTS
;
2486 #if defined (CNEW_RTSCTS)
2487 attr
.c_cflag
&= ~CNEW_RTSCTS
;
2489 #if defined (IXON) && defined (IXOFF)
2490 attr
.c_iflag
&= ~(IXON
| IXOFF
);
2494 /* Already configured. */
2496 else if (EQ (tem
, Qhw
))
2498 #if defined (CRTSCTS)
2499 attr
.c_cflag
|= CRTSCTS
;
2500 #elif defined (CNEW_RTSCTS)
2501 attr
.c_cflag
|= CNEW_RTSCTS
;
2503 error ("Hardware flowcontrol (RTS/CTS) not supported");
2506 else if (EQ (tem
, Qsw
))
2508 #if defined (IXON) && defined (IXOFF)
2509 attr
.c_iflag
|= (IXON
| IXOFF
);
2511 error ("Software flowcontrol (XON/XOFF) not supported");
2514 childp2
= Fplist_put (childp2
, QCflowcontrol
, tem
);
2516 /* Activate configuration. */
2517 err
= tcsetattr (p
->outfd
, TCSANOW
, &attr
);
2519 error ("tcsetattr() failed: %s", emacs_strerror (errno
));
2521 childp2
= Fplist_put (childp2
, QCsummary
, build_string (summary
));
2522 pset_childp (p
, childp2
);
2524 #endif /* not DOS_NT */
2526 /* System depended enumeration of and access to system processes a-la ps(1). */
2530 /* Process enumeration and access via /proc. */
2533 list_system_processes (void)
2535 Lisp_Object procdir
, match
, proclist
, next
;
2536 struct gcpro gcpro1
, gcpro2
;
2537 register Lisp_Object tail
;
2539 GCPRO2 (procdir
, match
);
2540 /* For every process on the system, there's a directory in the
2541 "/proc" pseudo-directory whose name is the numeric ID of that
2543 procdir
= build_string ("/proc");
2544 match
= build_string ("[0-9]+");
2545 proclist
= directory_files_internal (procdir
, Qnil
, match
, Qt
, 0, Qnil
);
2547 /* `proclist' gives process IDs as strings. Destructively convert
2548 each string into a number. */
2549 for (tail
= proclist
; CONSP (tail
); tail
= next
)
2552 XSETCAR (tail
, Fstring_to_number (XCAR (tail
), Qnil
));
2556 /* directory_files_internal returns the files in reverse order; undo
2558 proclist
= Fnreverse (proclist
);
2562 #elif defined BSD_SYSTEM
2565 list_system_processes (void)
2567 #if defined DARWIN_OS || defined __NetBSD__ || defined __OpenBSD__
2568 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_ALL
};
2570 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PROC
};
2573 struct kinfo_proc
*procs
;
2576 struct gcpro gcpro1
;
2577 Lisp_Object proclist
= Qnil
;
2579 if (sysctl (mib
, 3, NULL
, &len
, NULL
, 0) != 0)
2582 procs
= xmalloc (len
);
2583 if (sysctl (mib
, 3, procs
, &len
, NULL
, 0) != 0)
2590 len
/= sizeof (struct kinfo_proc
);
2591 for (i
= 0; i
< len
; i
++)
2593 #if defined DARWIN_OS || defined __NetBSD__
2594 proclist
= Fcons (make_fixnum_or_float (procs
[i
].kp_proc
.p_pid
), proclist
);
2595 #elif defined __OpenBSD__
2596 proclist
= Fcons (make_fixnum_or_float (procs
[i
].p_pid
), proclist
);
2598 proclist
= Fcons (make_fixnum_or_float (procs
[i
].ki_pid
), proclist
);
2608 /* The WINDOWSNT implementation is in w32.c.
2609 The MSDOS implementation is in dosfns.c. */
2610 #elif !defined (WINDOWSNT) && !defined (MSDOS)
2613 list_system_processes (void)
2618 #endif /* !defined (WINDOWSNT) */
2622 time_from_jiffies (unsigned long long tval
, long hz
)
2624 unsigned long long s
= tval
/ hz
;
2625 unsigned long long frac
= tval
% hz
;
2628 if (TYPE_MAXIMUM (time_t) < s
)
2630 if (LONG_MAX
- 1 <= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
2631 || frac
<= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
)
2632 ns
= frac
* EMACS_TIME_RESOLUTION
/ hz
;
2635 /* This is reachable only in the unlikely case that HZ * HZ
2636 exceeds ULLONG_MAX. It calculates an approximation that is
2637 guaranteed to be in range. */
2638 long hz_per_ns
= (hz
/ EMACS_TIME_RESOLUTION
2639 + (hz
% EMACS_TIME_RESOLUTION
!= 0));
2640 ns
= frac
/ hz_per_ns
;
2643 return make_emacs_time (s
, ns
);
2647 ltime_from_jiffies (unsigned long long tval
, long hz
)
2649 EMACS_TIME t
= time_from_jiffies (tval
, hz
);
2650 return make_lisp_time (t
);
2657 EMACS_TIME up
= make_emacs_time (0, 0);
2660 fup
= fopen ("/proc/uptime", "r");
2664 unsigned long long upsec
, upfrac
, idlesec
, idlefrac
;
2665 int upfrac_start
, upfrac_end
, idlefrac_start
, idlefrac_end
;
2667 if (fscanf (fup
, "%llu.%n%llu%n %llu.%n%llu%n",
2668 &upsec
, &upfrac_start
, &upfrac
, &upfrac_end
,
2669 &idlesec
, &idlefrac_start
, &idlefrac
, &idlefrac_end
)
2672 if (TYPE_MAXIMUM (time_t) < upsec
)
2674 upsec
= TYPE_MAXIMUM (time_t);
2675 upfrac
= EMACS_TIME_RESOLUTION
- 1;
2679 int upfraclen
= upfrac_end
- upfrac_start
;
2680 for (; upfraclen
< LOG10_EMACS_TIME_RESOLUTION
; upfraclen
++)
2682 for (; LOG10_EMACS_TIME_RESOLUTION
< upfraclen
; upfraclen
--)
2684 upfrac
= min (upfrac
, EMACS_TIME_RESOLUTION
- 1);
2686 up
= make_emacs_time (upsec
, upfrac
);
2695 #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff)
2696 #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12))
2699 procfs_ttyname (int rdev
)
2702 char name
[PATH_MAX
];
2705 fdev
= fopen ("/proc/tty/drivers", "r");
2710 unsigned long minor_beg
, minor_end
;
2711 char minor
[25]; /* 2 32-bit numbers + dash */
2714 while (!feof (fdev
) && !ferror (fdev
))
2716 if (3 <= fscanf (fdev
, "%*s %s %u %s %*s\n", name
, &major
, minor
)
2717 && major
== MAJOR (rdev
))
2719 minor_beg
= strtoul (minor
, &endp
, 0);
2721 minor_end
= minor_beg
;
2722 else if (*endp
== '-')
2723 minor_end
= strtoul (endp
+ 1, &endp
, 0);
2727 if (MINOR (rdev
) >= minor_beg
&& MINOR (rdev
) <= minor_end
)
2729 sprintf (name
+ strlen (name
), "%u", MINOR (rdev
));
2737 return build_string (name
);
2740 static unsigned long
2741 procfs_get_total_memory (void)
2744 unsigned long retval
= 2 * 1024 * 1024; /* default: 2GB */
2747 fmem
= fopen ("/proc/meminfo", "r");
2751 unsigned long entry_value
;
2752 char entry_name
[20]; /* the longest I saw is 13+1 */
2754 while (!feof (fmem
) && !ferror (fmem
))
2756 if (2 <= fscanf (fmem
, "%s %lu kB\n", entry_name
, &entry_value
)
2757 && strcmp (entry_name
, "MemTotal:") == 0)
2759 retval
= entry_value
;
2770 system_process_attributes (Lisp_Object pid
)
2772 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
2776 long clocks_per_sec
;
2778 char procbuf
[1025], *p
, *q
;
2781 static char const default_cmd
[] = "???";
2782 const char *cmd
= default_cmd
;
2783 int cmdsize
= sizeof default_cmd
- 1;
2784 char *cmdline
= NULL
;
2785 ptrdiff_t cmdline_size
;
2788 int ppid
, pgrp
, sess
, tty
, tpgid
, thcount
;
2791 unsigned long long u_time
, s_time
, cutime
, cstime
, start
;
2792 long priority
, niceness
, rss
;
2793 unsigned long minflt
, majflt
, cminflt
, cmajflt
, vsize
;
2794 EMACS_TIME tnow
, tstart
, tboot
, telapsed
, us_time
;
2796 Lisp_Object attrs
= Qnil
;
2797 Lisp_Object cmd_str
, decoded_cmd
, tem
;
2798 struct gcpro gcpro1
, gcpro2
;
2800 CHECK_NUMBER_OR_FLOAT (pid
);
2801 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
2802 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
2803 if (stat (procfn
, &st
) < 0)
2806 GCPRO2 (attrs
, decoded_cmd
);
2810 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
2812 pw
= getpwuid (uid
);
2815 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
2818 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
2820 gr
= getgrgid (gid
);
2823 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
2825 strcpy (fn
, procfn
);
2826 procfn_end
= fn
+ strlen (fn
);
2827 strcpy (procfn_end
, "/stat");
2828 fd
= emacs_open (fn
, O_RDONLY
, 0);
2829 if (fd
>= 0 && (nread
= emacs_read (fd
, procbuf
, sizeof (procbuf
) - 1)) > 0)
2831 procbuf
[nread
] = '\0';
2834 p
= strchr (p
, '(');
2837 q
= strrchr (p
+ 1, ')');
2847 /* Command name is encoded in locale-coding-system; decode it. */
2848 cmd_str
= make_unibyte_string (cmd
, cmdsize
);
2849 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2850 Vlocale_coding_system
, 0);
2851 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
2855 EMACS_INT ppid_eint
, pgrp_eint
, sess_eint
, tpgid_eint
, thcount_eint
;
2857 /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */
2858 sscanf (p
, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld",
2859 &c
, &ppid
, &pgrp
, &sess
, &tty
, &tpgid
,
2860 &minflt
, &cminflt
, &majflt
, &cmajflt
,
2861 &u_time
, &s_time
, &cutime
, &cstime
,
2862 &priority
, &niceness
, &thcount
, &start
, &vsize
, &rss
);
2867 state_str
[1] = '\0';
2868 tem
= build_string (state_str
);
2869 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
2871 /* Stops GCC whining about limited range of data type. */
2876 thcount_eint
= thcount
;
2877 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (ppid_eint
)), attrs
);
2878 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pgrp_eint
)), attrs
);
2879 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (sess_eint
)), attrs
);
2880 attrs
= Fcons (Fcons (Qttname
, procfs_ttyname (tty
)), attrs
);
2881 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (tpgid_eint
)), attrs
);
2882 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (minflt
)), attrs
);
2883 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (majflt
)), attrs
);
2884 attrs
= Fcons (Fcons (Qcminflt
, make_fixnum_or_float (cminflt
)), attrs
);
2885 attrs
= Fcons (Fcons (Qcmajflt
, make_fixnum_or_float (cmajflt
)), attrs
);
2886 clocks_per_sec
= sysconf (_SC_CLK_TCK
);
2887 if (clocks_per_sec
< 0)
2888 clocks_per_sec
= 100;
2889 attrs
= Fcons (Fcons (Qutime
,
2890 ltime_from_jiffies (u_time
, clocks_per_sec
)),
2892 attrs
= Fcons (Fcons (Qstime
,
2893 ltime_from_jiffies (s_time
, clocks_per_sec
)),
2895 attrs
= Fcons (Fcons (Qtime
,
2896 ltime_from_jiffies (s_time
+ u_time
,
2899 attrs
= Fcons (Fcons (Qcutime
,
2900 ltime_from_jiffies (cutime
, clocks_per_sec
)),
2902 attrs
= Fcons (Fcons (Qcstime
,
2903 ltime_from_jiffies (cstime
, clocks_per_sec
)),
2905 attrs
= Fcons (Fcons (Qctime
,
2906 ltime_from_jiffies (cstime
+cutime
, clocks_per_sec
)),
2908 attrs
= Fcons (Fcons (Qpri
, make_number (priority
)), attrs
);
2909 attrs
= Fcons (Fcons (Qnice
, make_number (niceness
)), attrs
);
2910 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (thcount_eint
)), attrs
);
2911 tnow
= current_emacs_time ();
2912 telapsed
= get_up_time ();
2913 tboot
= sub_emacs_time (tnow
, telapsed
);
2914 tstart
= time_from_jiffies (start
, clocks_per_sec
);
2915 tstart
= add_emacs_time (tboot
, tstart
);
2916 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (tstart
)), attrs
);
2917 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (vsize
/1024)), attrs
);
2918 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (4*rss
)), attrs
);
2919 telapsed
= sub_emacs_time (tnow
, tstart
);
2920 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (telapsed
)), attrs
);
2921 us_time
= time_from_jiffies (u_time
+ s_time
, clocks_per_sec
);
2922 pcpu
= (EMACS_TIME_TO_DOUBLE (us_time
)
2923 / EMACS_TIME_TO_DOUBLE (telapsed
));
2926 attrs
= Fcons (Fcons (Qpcpu
, make_float (100 * pcpu
)), attrs
);
2927 pmem
= 4.0 * 100 * rss
/ procfs_get_total_memory ();
2930 attrs
= Fcons (Fcons (Qpmem
, make_float (pmem
)), attrs
);
2937 strcpy (procfn_end
, "/cmdline");
2938 fd
= emacs_open (fn
, O_RDONLY
, 0);
2942 for (cmdline_size
= 0; cmdline_size
< STRING_BYTES_BOUND
; cmdline_size
++)
2944 if (emacs_read (fd
, &ch
, 1) != 1)
2947 if (c_isspace (c
) || c
== '\\')
2948 cmdline_size
++; /* for later quoting, see below */
2952 cmdline
= xmalloc (cmdline_size
+ 1);
2953 lseek (fd
, 0L, SEEK_SET
);
2955 if ((nread
= read (fd
, cmdline
, cmdline_size
)) >= 0)
2956 cmdline
[nread
++] = '\0';
2959 /* Assigning zero to `nread' makes us skip the following
2960 two loops, assign zero to cmdline_size, and enter the
2961 following `if' clause that handles unknown command
2965 /* We don't want trailing null characters. */
2966 for (p
= cmdline
+ nread
; p
> cmdline
+ 1 && !p
[-1]; p
--)
2968 for (p
= cmdline
; p
< cmdline
+ nread
; p
++)
2970 /* Escape-quote whitespace and backslashes. */
2971 if (c_isspace (*p
) || *p
== '\\')
2973 memmove (p
+ 1, p
, nread
- (p
- cmdline
));
2977 else if (*p
== '\0')
2980 cmdline_size
= nread
;
2984 cmdline_size
= cmdsize
+ 2;
2985 cmdline
= xmalloc (cmdline_size
+ 1);
2986 sprintf (cmdline
, "[%.*s]", cmdsize
, cmd
);
2989 /* Command line is encoded in locale-coding-system; decode it. */
2990 cmd_str
= make_unibyte_string (cmdline
, cmdline_size
);
2991 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2992 Vlocale_coding_system
, 0);
2994 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3001 #elif defined (SOLARIS2) && defined (HAVE_PROCFS)
3003 /* The <procfs.h> header does not like to be included if _LP64 is defined and
3004 __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */
3005 #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
3006 #define PROCFS_FILE_OFFSET_BITS_HACK 1
3007 #undef _FILE_OFFSET_BITS
3009 #define PROCFS_FILE_OFFSET_BITS_HACK 0
3014 #if PROCFS_FILE_OFFSET_BITS_HACK == 1
3015 #define _FILE_OFFSET_BITS 64
3016 #ifdef _FILE_OFFSET_BITS /* Avoid unused-macro warnings. */
3018 #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */
3021 system_process_attributes (Lisp_Object pid
)
3023 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3028 struct psinfo pinfo
;
3034 Lisp_Object attrs
= Qnil
;
3035 Lisp_Object decoded_cmd
, tem
;
3036 struct gcpro gcpro1
, gcpro2
;
3038 CHECK_NUMBER_OR_FLOAT (pid
);
3039 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
3040 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
3041 if (stat (procfn
, &st
) < 0)
3044 GCPRO2 (attrs
, decoded_cmd
);
3048 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
3050 pw
= getpwuid (uid
);
3053 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3056 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
3058 gr
= getgrgid (gid
);
3061 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3063 strcpy (fn
, procfn
);
3064 procfn_end
= fn
+ strlen (fn
);
3065 strcpy (procfn_end
, "/psinfo");
3066 fd
= emacs_open (fn
, O_RDONLY
, 0);
3068 && (nread
= read (fd
, (char*)&pinfo
, sizeof (struct psinfo
)) > 0))
3070 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (pinfo
.pr_ppid
)), attrs
);
3071 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pinfo
.pr_pgid
)), attrs
);
3072 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (pinfo
.pr_sid
)), attrs
);
3076 state_str
[0] = pinfo
.pr_lwp
.pr_sname
;
3077 state_str
[1] = '\0';
3078 tem
= build_string (state_str
);
3079 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3082 /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t,
3083 need to get a string from it. */
3085 /* FIXME: missing: Qtpgid */
3097 Are they available? */
3099 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (pinfo
.pr_time
)), attrs
);
3100 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (pinfo
.pr_ctime
)), attrs
);
3101 attrs
= Fcons (Fcons (Qpri
, make_number (pinfo
.pr_lwp
.pr_pri
)), attrs
);
3102 attrs
= Fcons (Fcons (Qnice
, make_number (pinfo
.pr_lwp
.pr_nice
)), attrs
);
3103 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (pinfo
.pr_nlwp
)), attrs
);
3105 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (pinfo
.pr_start
)), attrs
);
3106 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (pinfo
.pr_size
)), attrs
);
3107 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (pinfo
.pr_rssize
)), attrs
);
3109 /* pr_pctcpu and pr_pctmem are unsigned integers in the
3110 range 0 .. 2**15, representing 0.0 .. 1.0. */
3111 attrs
= Fcons (Fcons (Qpcpu
, make_float (100.0 / 0x8000 * pinfo
.pr_pctcpu
)), attrs
);
3112 attrs
= Fcons (Fcons (Qpmem
, make_float (100.0 / 0x8000 * pinfo
.pr_pctmem
)), attrs
);
3115 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_fname
,
3116 strlen (pinfo
.pr_fname
)),
3117 Vlocale_coding_system
, 0);
3118 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3120 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_psargs
,
3121 strlen (pinfo
.pr_psargs
)),
3122 Vlocale_coding_system
, 0);
3123 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3133 #elif defined __FreeBSD__
3136 timeval_to_EMACS_TIME (struct timeval t
)
3138 return make_emacs_time (t
.tv_sec
, t
.tv_usec
* 1000);
3142 make_lisp_timeval (struct timeval t
)
3144 return make_lisp_time (timeval_to_EMACS_TIME (t
));
3148 system_process_attributes (Lisp_Object pid
)
3151 int pagesize
= getpagesize ();
3158 char args
[MAXPATHLEN
];
3161 int mib
[4] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PID
};
3162 struct kinfo_proc proc
;
3163 size_t proclen
= sizeof proc
;
3165 struct gcpro gcpro1
, gcpro2
;
3166 Lisp_Object attrs
= Qnil
;
3167 Lisp_Object decoded_comm
;
3169 CHECK_NUMBER_OR_FLOAT (pid
);
3170 CONS_TO_INTEGER (pid
, int, proc_id
);
3173 if (sysctl (mib
, 4, &proc
, &proclen
, NULL
, 0) != 0)
3176 GCPRO2 (attrs
, decoded_comm
);
3178 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (proc
.ki_uid
)), attrs
);
3181 pw
= getpwuid (proc
.ki_uid
);
3184 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3186 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (proc
.ki_svgid
)), attrs
);
3189 gr
= getgrgid (proc
.ki_svgid
);
3192 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3194 decoded_comm
= code_convert_string_norecord
3195 (make_unibyte_string (proc
.ki_comm
, strlen (proc
.ki_comm
)),
3196 Vlocale_coding_system
, 0);
3198 attrs
= Fcons (Fcons (Qcomm
, decoded_comm
), attrs
);
3200 char state
[2] = {'\0', '\0'};
3201 switch (proc
.ki_stat
)
3223 attrs
= Fcons (Fcons (Qstate
, build_string (state
)), attrs
);
3226 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (proc
.ki_ppid
)), attrs
);
3227 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (proc
.ki_pgid
)), attrs
);
3228 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (proc
.ki_sid
)), attrs
);
3231 ttyname
= proc
.ki_tdev
== NODEV
? NULL
: devname (proc
.ki_tdev
, S_IFCHR
);
3234 attrs
= Fcons (Fcons (Qtty
, build_string (ttyname
)), attrs
);
3236 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (proc
.ki_tpgid
)), attrs
);
3237 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_minflt
)), attrs
);
3238 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_majflt
)), attrs
);
3239 attrs
= Fcons (Fcons (Qcminflt
, make_number (proc
.ki_rusage_ch
.ru_minflt
)), attrs
);
3240 attrs
= Fcons (Fcons (Qcmajflt
, make_number (proc
.ki_rusage_ch
.ru_majflt
)), attrs
);
3242 attrs
= Fcons (Fcons (Qutime
, make_lisp_timeval (proc
.ki_rusage
.ru_utime
)),
3244 attrs
= Fcons (Fcons (Qstime
, make_lisp_timeval (proc
.ki_rusage
.ru_stime
)),
3246 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_utime
),
3247 timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_stime
));
3248 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (t
)), attrs
);
3250 attrs
= Fcons (Fcons (Qcutime
,
3251 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3253 attrs
= Fcons (Fcons (Qcstime
,
3254 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3256 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_utime
),
3257 timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_stime
));
3258 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (t
)), attrs
);
3260 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (proc
.ki_numthreads
)),
3262 attrs
= Fcons (Fcons (Qpri
, make_number (proc
.ki_pri
.pri_native
)), attrs
);
3263 attrs
= Fcons (Fcons (Qnice
, make_number (proc
.ki_nice
)), attrs
);
3264 attrs
= Fcons (Fcons (Qstart
, make_lisp_timeval (proc
.ki_start
)), attrs
);
3265 attrs
= Fcons (Fcons (Qvsize
, make_number (proc
.ki_size
>> 10)), attrs
);
3266 attrs
= Fcons (Fcons (Qrss
, make_number (proc
.ki_rssize
* pagesize
>> 10)),
3269 now
= current_emacs_time ();
3270 t
= sub_emacs_time (now
, timeval_to_EMACS_TIME (proc
.ki_start
));
3271 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (t
)), attrs
);
3273 len
= sizeof fscale
;
3274 if (sysctlbyname ("kern.fscale", &fscale
, &len
, NULL
, 0) == 0)
3279 if (sysctlbyname ("kern.ccpu", &ccpu
, &len
, NULL
, 0) == 0)
3281 pcpu
= (100.0 * proc
.ki_pctcpu
/ fscale
3282 / (1 - exp (proc
.ki_swtime
* log ((double) ccpu
/ fscale
))));
3283 attrs
= Fcons (Fcons (Qpcpu
, make_fixnum_or_float (pcpu
)), attrs
);
3287 len
= sizeof npages
;
3288 if (sysctlbyname ("hw.availpages", &npages
, &len
, NULL
, 0) == 0)
3290 double pmem
= (proc
.ki_flag
& P_INMEM
3291 ? 100.0 * proc
.ki_rssize
/ npages
3293 attrs
= Fcons (Fcons (Qpmem
, make_fixnum_or_float (pmem
)), attrs
);
3296 mib
[2] = KERN_PROC_ARGS
;
3298 if (sysctl (mib
, 4, args
, &len
, NULL
, 0) == 0)
3301 for (i
= 0; i
< len
; i
++)
3303 if (! args
[i
] && i
< len
- 1)
3308 (code_convert_string_norecord
3309 (build_unibyte_string (args
),
3310 Vlocale_coding_system
, 0));
3312 attrs
= Fcons (Fcons (Qargs
, decoded_comm
), attrs
);
3319 /* The WINDOWSNT implementation is in w32.c.
3320 The MSDOS implementation is in dosfns.c. */
3321 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3324 system_process_attributes (Lisp_Object pid
)
3329 #endif /* !defined (WINDOWSNT) */