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 /* 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. */
460 #if defined (SIGTSTP) && !defined (MSDOS)
463 pid_t pgrp
= getpgrp ();
464 EMACS_KILLPG (pgrp
, SIGTSTP
);
467 #else /* No SIGTSTP */
468 /* On a system where suspending is not implemented,
469 instead fork a subshell and let it talk directly to the terminal
473 #endif /* no SIGTSTP */
476 /* Fork a subshell. */
481 #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
483 char oldwd
[MAXPATHLEN
+1]; /* Fixed length is safe on MSDOS. */
487 struct save_signal saved_handlers
[5];
489 unsigned char *volatile str_volatile
= 0;
493 saved_handlers
[0].code
= SIGINT
;
494 saved_handlers
[1].code
= SIGQUIT
;
495 saved_handlers
[2].code
= SIGTERM
;
497 saved_handlers
[3].code
= SIGIO
;
498 saved_handlers
[4].code
= 0;
500 saved_handlers
[3].code
= 0;
503 /* Mentioning current_buffer->buffer would mean including buffer.h,
504 which somehow wedges the hp compiler. So instead... */
506 dir
= intern ("default-directory");
507 if (NILP (Fboundp (dir
)))
509 dir
= Fsymbol_value (dir
);
513 dir
= expand_and_dir_to_file (Funhandled_file_name_directory (dir
), Qnil
);
514 str_volatile
= str
= alloca (SCHARS (dir
) + 2);
516 memcpy (str
, SDATA (dir
), len
);
517 if (str
[len
- 1] != '/') str
[len
++] = '/';
523 save_signal_handlers (saved_handlers
);
527 error ("Can't spawn subshell");
534 #ifdef DOS_NT /* MW, Aug 1993 */
535 getcwd (oldwd
, sizeof oldwd
);
537 sh
= (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */
540 sh
= (char *) egetenv ("SHELL");
544 /* Use our buffer's default directory for the subshell. */
546 if (str
&& chdir ((char *) str
) != 0)
549 ignore_value (write (1, "Can't chdir\n", 12));
554 close_process_descs (); /* Close Emacs's pipes/ptys */
556 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
558 char *epwd
= getenv ("PWD");
559 char old_pwd
[MAXPATHLEN
+1+4];
561 /* If PWD is set, pass it with corrected value. */
564 strcpy (old_pwd
, epwd
);
565 if (str
[len
- 1] == '/')
567 setenv ("PWD", str
, 1);
570 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
572 putenv (old_pwd
); /* restore previous value */
574 #else /* not MSDOS */
576 /* Waits for process completion */
577 pid
= _spawnlp (_P_WAIT
, sh
, sh
, NULL
);
578 chdir (oldwd
); /* FIXME: Do the right thing on chdir failure. */
580 write (1, "Can't execute subshell", 22);
581 #else /* not WINDOWSNT */
582 execlp (sh
, sh
, (char *) 0);
583 ignore_value (write (1, "Can't execute subshell", 22));
585 #endif /* not WINDOWSNT */
586 #endif /* not MSDOS */
589 /* Do this now if we did not do it before. */
591 save_signal_handlers (saved_handlers
);
595 wait_for_termination (pid
, &status
, 0);
597 restore_signal_handlers (saved_handlers
);
601 save_signal_handlers (struct save_signal
*saved_handlers
)
603 while (saved_handlers
->code
)
605 struct sigaction action
;
606 emacs_sigaction_init (&action
, SIG_IGN
);
607 sigaction (saved_handlers
->code
, &action
, &saved_handlers
->action
);
613 restore_signal_handlers (struct save_signal
*saved_handlers
)
615 while (saved_handlers
->code
)
617 sigaction (saved_handlers
->code
, &saved_handlers
->action
, 0);
623 static int old_fcntl_flags
[MAXDESC
];
630 old_fcntl_flags
[fd
] = fcntl (fd
, F_GETFL
, 0) & ~FASYNC
;
631 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
] | FASYNC
);
632 interrupts_deferred
= 0;
640 fcntl (fd
, F_SETFL
, old_fcntl_flags
[fd
]);
653 sigemptyset (&unblocked
);
655 sigaddset (&unblocked
, SIGWINCH
);
657 sigaddset (&unblocked
, SIGIO
);
658 pthread_sigmask (SIG_UNBLOCK
, &unblocked
, 0);
660 interrupts_deferred
= 0;
665 unrequest_sigio (void)
673 sigemptyset (&blocked
);
675 sigaddset (&blocked
, SIGWINCH
);
677 sigaddset (&blocked
, SIGIO
);
678 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
679 interrupts_deferred
= 1;
687 signal (SIGIO
, SIG_IGN
);
692 /* Saving and restoring the process group of Emacs's terminal. */
694 /* The process group of which Emacs was a member when it initially
697 If Emacs was in its own process group (i.e. inherited_pgroup ==
698 getpid ()), then we know we're running under a shell with job
699 control (Emacs would never be run as part of a pipeline).
702 If Emacs was not in its own process group, then we know we're
703 running under a shell (or a caller) that doesn't know how to
704 separate itself from Emacs (like sh). Emacs must be in its own
705 process group in order to receive SIGIO correctly. In this
706 situation, we put ourselves in our own pgroup, forcibly set the
707 tty's pgroup to our pgroup, and make sure to restore and reinstate
708 the tty's pgroup just like any other terminal setting. If
709 inherited_group was not the tty's pgroup, then we'll get a
710 SIGTTmumble when we try to change the tty's pgroup, and a CONT if
711 it goes foreground in the future, which is what should happen. */
713 static pid_t inherited_pgroup
;
716 init_foreground_group (void)
718 pid_t pgrp
= getpgrp ();
719 inherited_pgroup
= getpid () == pgrp
? 0 : pgrp
;
722 /* Safely set a controlling terminal FD's process group to PGID.
723 If we are not in the foreground already, POSIX requires tcsetpgrp
724 to deliver a SIGTTOU signal, which would stop us. This is an
725 annoyance, so temporarily ignore the signal.
727 In practice, platforms lacking SIGTTOU also lack tcsetpgrp, so
728 skip all this unless SIGTTOU is defined. */
730 tcsetpgrp_without_stopping (int fd
, pid_t pgid
)
733 signal_handler_t handler
;
735 handler
= signal (SIGTTOU
, SIG_IGN
);
736 tcsetpgrp (fd
, pgid
);
737 signal (SIGTTOU
, handler
);
742 /* Split off the foreground process group to Emacs alone. When we are
743 in the foreground, but not started in our own process group,
744 redirect the tty device handle FD to point to our own process
745 group. FD must be the file descriptor of the controlling tty. */
747 narrow_foreground_group (int fd
)
749 if (inherited_pgroup
&& setpgid (0, 0) == 0)
750 tcsetpgrp_without_stopping (fd
, getpid ());
753 /* Set the tty to our original foreground group. */
755 widen_foreground_group (int fd
)
757 if (inherited_pgroup
&& setpgid (0, inherited_pgroup
) == 0)
758 tcsetpgrp_without_stopping (fd
, inherited_pgroup
);
761 /* Getting and setting emacs_tty structures. */
763 /* Set *TC to the parameters associated with the terminal FD.
764 Return zero if all's well, or -1 if we ran into an error we
765 couldn't deal with. */
767 emacs_get_tty (int fd
, struct emacs_tty
*settings
)
769 /* Retrieve the primary parameters - baud rate, character size, etcetera. */
771 /* We have those nifty POSIX tcmumbleattr functions. */
772 memset (&settings
->main
, 0, sizeof (settings
->main
));
773 if (tcgetattr (fd
, &settings
->main
) < 0)
777 /* We have survived the tempest. */
782 /* Set the parameters of the tty on FD according to the contents of
783 *SETTINGS. If FLUSHP is non-zero, we discard input.
784 Return 0 if all went well, and -1 if anything failed. */
787 emacs_set_tty (int fd
, struct emacs_tty
*settings
, int flushp
)
789 /* Set the primary parameters - baud rate, character size, etcetera. */
792 /* We have those nifty POSIX tcmumbleattr functions.
793 William J. Smith <wjs@wiis.wang.com> writes:
794 "POSIX 1003.1 defines tcsetattr to return success if it was
795 able to perform any of the requested actions, even if some
796 of the requested actions could not be performed.
797 We must read settings back to ensure tty setup properly.
798 AIX requires this to keep tty from hanging occasionally." */
799 /* This make sure that we don't loop indefinitely in here. */
800 for (i
= 0 ; i
< 10 ; i
++)
801 if (tcsetattr (fd
, flushp
? TCSAFLUSH
: TCSADRAIN
, &settings
->main
) < 0)
812 memset (&new, 0, sizeof (new));
813 /* Get the current settings, and see if they're what we asked for. */
814 tcgetattr (fd
, &new);
815 /* We cannot use memcmp on the whole structure here because under
816 * aix386 the termios structure has some reserved field that may
819 if ( new.c_iflag
== settings
->main
.c_iflag
820 && new.c_oflag
== settings
->main
.c_oflag
821 && new.c_cflag
== settings
->main
.c_cflag
822 && new.c_lflag
== settings
->main
.c_lflag
823 && memcmp (new.c_cc
, settings
->main
.c_cc
, NCCS
) == 0)
830 /* We have survived the tempest. */
837 static int old_fcntl_owner
[MAXDESC
];
838 #endif /* F_SETOWN */
840 /* This may also be defined in stdio,
841 but if so, this does no harm,
842 and using the same name avoids wasting the other one's space. */
845 unsigned char _sobuf
[BUFSIZ
+8];
850 /* Initialize the terminal mode on all tty devices that are currently
854 init_all_sys_modes (void)
856 struct tty_display_info
*tty
;
857 for (tty
= tty_list
; tty
; tty
= tty
->next
)
858 init_sys_modes (tty
);
861 /* Initialize the terminal mode on the given tty device. */
864 init_sys_modes (struct tty_display_info
*tty_out
)
866 struct emacs_tty tty
;
867 Lisp_Object terminal
;
869 Vtty_erase_char
= Qnil
;
874 if (!tty_out
->output
)
875 return; /* The tty is suspended. */
877 narrow_foreground_group (fileno (tty_out
->input
));
879 if (! tty_out
->old_tty
)
880 tty_out
->old_tty
= xmalloc (sizeof *tty_out
->old_tty
);
882 emacs_get_tty (fileno (tty_out
->input
), tty_out
->old_tty
);
884 tty
= *tty_out
->old_tty
;
886 #if !defined (DOS_NT)
887 XSETINT (Vtty_erase_char
, tty
.main
.c_cc
[VERASE
]);
889 tty
.main
.c_iflag
|= (IGNBRK
); /* Ignore break condition */
890 tty
.main
.c_iflag
&= ~ICRNL
; /* Disable map of CR to NL on input */
891 #ifdef INLCR /* I'm just being cautious,
892 since I can't check how widespread INLCR is--rms. */
893 tty
.main
.c_iflag
&= ~INLCR
; /* Disable map of NL to CR on input */
896 tty
.main
.c_iflag
&= ~ISTRIP
; /* don't strip 8th bit on input */
898 tty
.main
.c_lflag
&= ~ECHO
; /* Disable echo */
899 tty
.main
.c_lflag
&= ~ICANON
; /* Disable erase/kill processing */
901 tty
.main
.c_lflag
&= ~IEXTEN
; /* Disable other editing characters. */
903 tty
.main
.c_lflag
|= ISIG
; /* Enable signals */
904 if (tty_out
->flow_control
)
906 tty
.main
.c_iflag
|= IXON
; /* Enable start/stop output control */
908 tty
.main
.c_iflag
&= ~IXANY
;
912 tty
.main
.c_iflag
&= ~IXON
; /* Disable start/stop output control */
913 tty
.main
.c_oflag
&= ~ONLCR
; /* Disable map of NL to CR-NL
915 tty
.main
.c_oflag
&= ~TAB3
; /* Disable tab expansion */
917 if (tty_out
->meta_key
)
919 tty
.main
.c_cflag
|= CS8
; /* allow 8th bit on input */
920 tty
.main
.c_cflag
&= ~PARENB
;/* Don't check parity */
924 XSETTERMINAL(terminal
, tty_out
->terminal
);
925 if (!NILP (Fcontrolling_tty_p (terminal
)))
927 tty
.main
.c_cc
[VINTR
] = quit_char
; /* C-g (usually) gives SIGINT */
928 /* Set up C-g for both SIGQUIT and SIGINT.
929 We don't know which we will get, but we handle both alike
930 so which one it really gives us does not matter. */
931 tty
.main
.c_cc
[VQUIT
] = quit_char
;
935 /* We normally don't get interrupt or quit signals from tty
936 devices other than our controlling terminal; therefore,
937 we must handle C-g as normal input. Unfortunately, this
938 means that the interrupt and quit feature must be
939 disabled on secondary ttys, or we would not even see the
942 Note that even though emacsclient could have special code
943 to pass SIGINT to Emacs, we should _not_ enable
944 interrupt/quit keys for emacsclient frames. This means
945 that we can't break out of loops in C code from a
946 secondary tty frame, but we can always decide what
947 display the C-g came from, which is more important from a
948 usability point of view. (Consider the case when two
949 people work together using the same Emacs instance.) */
950 tty
.main
.c_cc
[VINTR
] = CDISABLE
;
951 tty
.main
.c_cc
[VQUIT
] = CDISABLE
;
953 tty
.main
.c_cc
[VMIN
] = 1; /* Input should wait for at least 1 char */
954 tty
.main
.c_cc
[VTIME
] = 0; /* no matter how long that takes. */
956 tty
.main
.c_cc
[VSWTCH
] = CDISABLE
; /* Turn off shell layering use
961 tty
.main
.c_cc
[VSUSP
] = CDISABLE
; /* Turn off handling of C-z. */
964 tty
.main
.c_cc
[V_DSUSP
] = CDISABLE
; /* Turn off handling of C-y. */
966 #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */
967 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
970 tty
.main
.c_cc
[VLNEXT
] = CDISABLE
;
973 tty
.main
.c_cc
[VREPRINT
] = CDISABLE
;
974 #endif /* VREPRINT */
976 tty
.main
.c_cc
[VWERASE
] = CDISABLE
;
979 tty
.main
.c_cc
[VDISCARD
] = CDISABLE
;
980 #endif /* VDISCARD */
982 if (tty_out
->flow_control
)
985 tty
.main
.c_cc
[VSTART
] = '\021';
988 tty
.main
.c_cc
[VSTOP
] = '\023';
994 tty
.main
.c_cc
[VSTART
] = CDISABLE
;
997 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1002 tty
.main
.c_cc
[VSTRT
] = CDISABLE
;
1003 tty
.main
.c_cc
[VSTOP
] = CDISABLE
;
1004 tty
.main
.c_cc
[VSUSP
] = CDISABLE
;
1005 tty
.main
.c_cc
[VDSUSP
] = CDISABLE
;
1006 if (tty_out
->flow_control
)
1009 tty
.main
.c_cc
[VSTART
] = '\021';
1012 tty
.main
.c_cc
[VSTOP
] = '\023';
1015 /* Also, PTY overloads NUL and BREAK.
1016 don't ignore break, but don't signal either, so it looks like NUL.
1017 This really serves a purpose only if running in an XTERM window
1018 or via TELNET or the like, but does no harm elsewhere. */
1019 tty
.main
.c_iflag
&= ~IGNBRK
;
1020 tty
.main
.c_iflag
&= ~BRKINT
;
1022 #endif /* not DOS_NT */
1024 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */
1025 if (!tty_out
->term_initted
)
1026 internal_terminal_init ();
1027 dos_ttraw (tty_out
);
1030 emacs_set_tty (fileno (tty_out
->input
), &tty
, 0);
1032 /* This code added to insure that, if flow-control is not to be used,
1033 we have an unlocked terminal at the start. */
1036 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TCXONC
, 1);
1039 if (!tty_out
->flow_control
) ioctl (fileno (tty_out
->input
), TIOCSTART
, 0);
1042 #if !defined (DOS_NT)
1044 if (!tty_out
->flow_control
) tcflow (fileno (tty_out
->input
), TCOON
);
1049 if (interrupt_input
)
1051 old_fcntl_owner
[fileno (tty_out
->input
)] =
1052 fcntl (fileno (tty_out
->input
), F_GETOWN
, 0);
1053 fcntl (fileno (tty_out
->input
), F_SETOWN
, getpid ());
1054 init_sigio (fileno (tty_out
->input
));
1056 if (gpm_tty
== tty_out
)
1058 /* Arrange for mouse events to give us SIGIO signals. */
1059 fcntl (gpm_fd
, F_SETOWN
, getpid ());
1060 fcntl (gpm_fd
, F_SETFL
, fcntl (gpm_fd
, F_GETFL
, 0) | O_NONBLOCK
);
1061 init_sigio (gpm_fd
);
1063 #endif /* HAVE_GPM */
1065 #endif /* F_GETOWN */
1068 /* This symbol is defined on recent USG systems.
1069 Someone says without this call USG won't really buffer the file
1070 even with a call to setbuf. */
1071 setvbuf (tty_out
->output
, (char *) _sobuf
, _IOFBF
, sizeof _sobuf
);
1073 setbuf (tty_out
->output
, (char *) _sobuf
);
1076 if (tty_out
->terminal
->set_terminal_modes_hook
)
1077 tty_out
->terminal
->set_terminal_modes_hook (tty_out
->terminal
);
1079 if (!tty_out
->term_initted
)
1081 Lisp_Object tail
, frame
;
1082 FOR_EACH_FRAME (tail
, frame
)
1084 /* XXX This needs to be revised. */
1085 if (FRAME_TERMCAP_P (XFRAME (frame
))
1086 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1087 init_frame_faces (XFRAME (frame
));
1091 if (tty_out
->term_initted
&& no_redraw_on_reenter
)
1093 /* We used to call "direct_output_forward_char(0)" here,
1094 but it's not clear why, since it may not do anything anyway. */
1098 Lisp_Object tail
, frame
;
1100 FOR_EACH_FRAME (tail
, frame
)
1102 if ((FRAME_TERMCAP_P (XFRAME (frame
))
1103 || FRAME_MSDOS_P (XFRAME (frame
)))
1104 && FRAME_TTY (XFRAME (frame
)) == tty_out
)
1105 FRAME_GARBAGED_P (XFRAME (frame
)) = 1;
1109 tty_out
->term_initted
= 1;
1112 /* Return nonzero if safe to use tabs in output.
1113 At the time this is called, init_sys_modes has not been done yet. */
1116 tabs_safe_p (int fd
)
1118 struct emacs_tty etty
;
1120 emacs_get_tty (fd
, &etty
);
1123 return ((etty
.main
.c_oflag
& TABDLY
) != TAB3
);
1124 #else /* not TABDLY */
1126 #endif /* not TABDLY */
1132 /* Get terminal size from system.
1133 Store number of lines into *HEIGHTP and width into *WIDTHP.
1134 We store 0 if there's no valid information. */
1137 get_tty_size (int fd
, int *widthp
, int *heightp
)
1139 #if defined TIOCGWINSZ
1142 struct winsize size
;
1144 if (ioctl (fd
, TIOCGWINSZ
, &size
) == -1)
1145 *widthp
= *heightp
= 0;
1148 *widthp
= size
.ws_col
;
1149 *heightp
= size
.ws_row
;
1152 #elif defined TIOCGSIZE
1154 /* SunOS - style. */
1155 struct ttysize size
;
1157 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1158 *widthp
= *heightp
= 0;
1161 *widthp
= size
.ts_cols
;
1162 *heightp
= size
.ts_lines
;
1165 #elif defined WINDOWSNT
1167 CONSOLE_SCREEN_BUFFER_INFO info
;
1168 if (GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE
), &info
))
1170 *widthp
= info
.srWindow
.Right
- info
.srWindow
.Left
+ 1;
1171 *heightp
= info
.srWindow
.Bottom
- info
.srWindow
.Top
+ 1;
1174 *widthp
= *heightp
= 0;
1178 *widthp
= ScreenCols ();
1179 *heightp
= ScreenRows ();
1181 #else /* system doesn't know size */
1189 /* Set the logical window size associated with descriptor FD
1190 to HEIGHT and WIDTH. This is used mainly with ptys. */
1193 set_window_size (int fd
, int height
, int width
)
1198 struct winsize size
;
1199 size
.ws_row
= height
;
1200 size
.ws_col
= width
;
1202 if (ioctl (fd
, TIOCSWINSZ
, &size
) == -1)
1203 return 0; /* error */
1210 /* SunOS - style. */
1211 struct ttysize size
;
1212 size
.ts_lines
= height
;
1213 size
.ts_cols
= width
;
1215 if (ioctl (fd
, TIOCGSIZE
, &size
) == -1)
1221 #endif /* not SunOS-style */
1222 #endif /* not BSD-style */
1227 /* Prepare all terminal devices for exiting Emacs. */
1230 reset_all_sys_modes (void)
1232 struct tty_display_info
*tty
;
1233 for (tty
= tty_list
; tty
; tty
= tty
->next
)
1234 reset_sys_modes (tty
);
1237 /* Prepare the terminal for closing it; move the cursor to the
1238 bottom of the frame, turn off interrupt-driven I/O, etc. */
1241 reset_sys_modes (struct tty_display_info
*tty_out
)
1248 if (!tty_out
->term_initted
)
1251 if (!tty_out
->output
)
1252 return; /* The tty is suspended. */
1254 /* Go to and clear the last line of the terminal. */
1256 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1258 /* Code adapted from tty_clear_end_of_line. */
1259 if (tty_out
->TS_clr_line
)
1261 emacs_tputs (tty_out
, tty_out
->TS_clr_line
, 1, cmputc
);
1264 { /* have to do it the hard way */
1266 tty_turn_off_insert (tty_out
);
1268 for (i
= curX (tty_out
); i
< FrameCols (tty_out
) - 1; i
++)
1270 fputc (' ', tty_out
->output
);
1274 cmgoto (tty_out
, FrameRows (tty_out
) - 1, 0);
1275 fflush (tty_out
->output
);
1277 if (tty_out
->terminal
->reset_terminal_modes_hook
)
1278 tty_out
->terminal
->reset_terminal_modes_hook (tty_out
->terminal
);
1281 /* Avoid possible loss of output when changing terminal modes. */
1282 fsync (fileno (tty_out
->output
));
1287 if (interrupt_input
)
1289 reset_sigio (fileno (tty_out
->input
));
1290 fcntl (fileno (tty_out
->input
), F_SETOWN
,
1291 old_fcntl_owner
[fileno (tty_out
->input
)]);
1293 #endif /* F_SETOWN */
1294 fcntl (fileno (tty_out
->input
), F_SETFL
,
1295 fcntl (fileno (tty_out
->input
), F_GETFL
, 0) & ~O_NONBLOCK
);
1298 if (tty_out
->old_tty
)
1299 while (emacs_set_tty (fileno (tty_out
->input
),
1300 tty_out
->old_tty
, 0) < 0 && errno
== EINTR
)
1303 #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */
1307 widen_foreground_group (fileno (tty_out
->input
));
1312 /* Set up the proper status flags for use of a pty. */
1317 /* I'm told that TOICREMOTE does not mean control chars
1318 "can't be sent" but rather that they don't have
1319 input-editing or signaling effects.
1320 That should be good, because we have other ways
1321 to do those things in Emacs.
1322 However, telnet mode seems not to work on 4.2.
1323 So TIOCREMOTE is turned off now. */
1325 /* Under hp-ux, if TIOCREMOTE is turned on, some calls
1326 will hang. In particular, the "timeout" feature (which
1327 causes a read to return if there is no data available)
1328 does this. Also it is known that telnet mode will hang
1329 in such a way that Emacs must be stopped (perhaps this
1330 is the same problem).
1332 If TIOCREMOTE is turned off, then there is a bug in
1333 hp-ux which sometimes loses data. Apparently the
1334 code which blocks the master process when the internal
1335 buffer fills up does not work. Other than this,
1336 though, everything else seems to work fine.
1338 Since the latter lossage is more benign, we may as well
1339 lose that way. -- cph */
1341 #if defined (UNIX98_PTYS)
1344 ioctl (fd
, FIONBIO
, &on
);
1349 #endif /* HAVE_PTYS */
1352 #include <sys/socket.h>
1354 #endif /* HAVE_SOCKETS */
1357 #ifndef HAVE_H_ERRNO
1360 #endif /* TRY_AGAIN */
1363 init_system_name (void)
1365 #ifndef HAVE_GETHOSTNAME
1368 Vsystem_name
= build_string (uts
.nodename
);
1369 #else /* HAVE_GETHOSTNAME */
1370 unsigned int hostname_size
= 256;
1371 char *hostname
= alloca (hostname_size
);
1373 /* Try to get the host name; if the buffer is too short, try
1374 again. Apparently, the only indication gethostname gives of
1375 whether the buffer was large enough is the presence or absence
1376 of a '\0' in the string. Eech. */
1379 gethostname (hostname
, hostname_size
- 1);
1380 hostname
[hostname_size
- 1] = '\0';
1382 /* Was the buffer large enough for the '\0'? */
1383 if (strlen (hostname
) < hostname_size
- 1)
1386 hostname_size
<<= 1;
1387 hostname
= alloca (hostname_size
);
1390 /* Turn the hostname into the official, fully-qualified hostname.
1391 Don't do this if we're going to dump; this can confuse system
1392 libraries on some machines and make the dumped emacs core dump. */
1395 #endif /* not CANNOT_DUMP */
1396 if (! strchr (hostname
, '.'))
1399 #ifdef HAVE_GETADDRINFO
1400 struct addrinfo
*res
;
1401 struct addrinfo hints
;
1404 memset (&hints
, 0, sizeof (hints
));
1405 hints
.ai_socktype
= SOCK_STREAM
;
1406 hints
.ai_flags
= AI_CANONNAME
;
1408 for (count
= 0;; count
++)
1410 if ((ret
= getaddrinfo (hostname
, NULL
, &hints
, &res
)) == 0
1411 || ret
!= EAI_AGAIN
)
1416 Fsleep_for (make_number (1), Qnil
);
1421 struct addrinfo
*it
= res
;
1424 char *fqdn
= it
->ai_canonname
;
1425 if (fqdn
&& strchr (fqdn
, '.')
1426 && strcmp (fqdn
, "localhost.localdomain") != 0)
1432 hostname
= alloca (strlen (it
->ai_canonname
) + 1);
1433 strcpy (hostname
, it
->ai_canonname
);
1437 #else /* !HAVE_GETADDRINFO */
1439 for (count
= 0;; count
++)
1445 hp
= gethostbyname (hostname
);
1447 if (! (hp
== 0 && h_errno
== TRY_AGAIN
))
1454 Fsleep_for (make_number (1), Qnil
);
1459 char *fqdn
= (char *) hp
->h_name
;
1461 if (!strchr (fqdn
, '.'))
1463 /* We still don't have a fully qualified domain name.
1464 Try to find one in the list of alternate names */
1465 char **alias
= hp
->h_aliases
;
1467 && (!strchr (*alias
, '.')
1468 || !strcmp (*alias
, "localhost.localdomain")))
1475 #endif /* !HAVE_GETADDRINFO */
1477 #endif /* HAVE_SOCKETS */
1478 Vsystem_name
= build_string (hostname
);
1479 #endif /* HAVE_GETHOSTNAME */
1482 for (p
= SDATA (Vsystem_name
); *p
; p
++)
1483 if (*p
== ' ' || *p
== '\t')
1488 sigset_t empty_mask
;
1490 static struct sigaction process_fatal_action
;
1493 emacs_sigaction_flags (void)
1496 /* SA_RESTART causes interruptible functions with timeouts (e.g.,
1497 'select') to reset their timeout on some platforms (e.g.,
1498 HP-UX 11), which is not what we want. Also, when Emacs is
1499 interactive, we don't want SA_RESTART because we need to poll
1500 for pending input so we need long-running syscalls to be interrupted
1501 after a signal that sets pending_signals.
1503 Non-interactive keyboard input goes through stdio, where we
1504 always want restartable system calls. */
1511 /* Store into *ACTION a signal action suitable for Emacs, with handler
1514 emacs_sigaction_init (struct sigaction
*action
, signal_handler_t handler
)
1516 sigemptyset (&action
->sa_mask
);
1518 /* When handling a signal, block nonfatal system signals that are caught
1519 by Emacs. This makes race conditions less likely. */
1520 sigaddset (&action
->sa_mask
, SIGALRM
);
1522 sigaddset (&action
->sa_mask
, SIGCHLD
);
1525 sigaddset (&action
->sa_mask
, SIGDANGER
);
1527 #ifdef PROFILER_CPU_SUPPORT
1528 sigaddset (&action
->sa_mask
, SIGPROF
);
1531 sigaddset (&action
->sa_mask
, SIGWINCH
);
1533 if (! noninteractive
)
1535 sigaddset (&action
->sa_mask
, SIGINT
);
1536 sigaddset (&action
->sa_mask
, SIGQUIT
);
1538 sigaddset (&action
->sa_mask
, SIGIO
);
1542 if (! IEEE_FLOATING_POINT
)
1543 sigaddset (&action
->sa_mask
, SIGFPE
);
1545 action
->sa_handler
= handler
;
1546 action
->sa_flags
= emacs_sigaction_flags ();
1549 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1550 static pthread_t main_thread
;
1553 /* SIG has arrived at the current process. Deliver it to the main
1554 thread, which should handle it with HANDLER.
1556 If we are on the main thread, handle the signal SIG with HANDLER.
1557 Otherwise, redirect the signal to the main thread, blocking it from
1558 this thread. POSIX says any thread can receive a signal that is
1559 associated with a process, process group, or asynchronous event.
1560 On GNU/Linux that is not true, but for other systems (FreeBSD at
1563 deliver_process_signal (int sig
, signal_handler_t handler
)
1565 /* Preserve errno, to avoid race conditions with signal handlers that
1566 might change errno. Races can occur even in single-threaded hosts. */
1567 int old_errno
= errno
;
1569 bool on_main_thread
= true;
1570 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1571 if (! pthread_equal (pthread_self (), main_thread
))
1574 sigemptyset (&blocked
);
1575 sigaddset (&blocked
, sig
);
1576 pthread_sigmask (SIG_BLOCK
, &blocked
, 0);
1577 pthread_kill (main_thread
, sig
);
1578 on_main_thread
= false;
1587 /* Static location to save a fatal backtrace in a thread.
1588 FIXME: If two subsidiary threads fail simultaneously, the resulting
1589 backtrace may be garbage. */
1590 enum { BACKTRACE_LIMIT_MAX
= 500 };
1591 static void *thread_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
1592 static int thread_backtrace_npointers
;
1594 /* SIG has arrived at the current thread.
1595 If we are on the main thread, handle the signal SIG with HANDLER.
1596 Otherwise, this is a fatal error in the handling thread. */
1598 deliver_thread_signal (int sig
, signal_handler_t handler
)
1600 int old_errno
= errno
;
1602 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1603 if (! pthread_equal (pthread_self (), main_thread
))
1605 thread_backtrace_npointers
1606 = backtrace (thread_backtrace_buffer
, BACKTRACE_LIMIT_MAX
);
1607 sigaction (sig
, &process_fatal_action
, 0);
1608 pthread_kill (main_thread
, sig
);
1610 /* Avoid further damage while the main thread is exiting. */
1612 sigsuspend (&empty_mask
);
1620 #if !HAVE_DECL_SYS_SIGLIST
1622 # ifdef _sys_siglist
1623 # define sys_siglist _sys_siglist
1625 # define sys_siglist my_sys_siglist
1626 static char const *sys_siglist
[NSIG
];
1631 # define sys_siglist_entries _sys_nsig
1633 # define sys_siglist_entries NSIG
1636 /* Handle bus errors, invalid instruction, etc. */
1638 handle_fatal_signal (int sig
)
1640 terminate_due_to_signal (sig
, 40);
1644 deliver_fatal_signal (int sig
)
1646 deliver_process_signal (sig
, handle_fatal_signal
);
1650 deliver_fatal_thread_signal (int sig
)
1652 deliver_thread_signal (sig
, handle_fatal_signal
);
1655 static _Noreturn
void
1656 handle_arith_signal (int sig
)
1658 pthread_sigmask (SIG_SETMASK
, &empty_mask
, 0);
1659 xsignal0 (Qarith_error
);
1663 deliver_arith_signal (int sig
)
1665 deliver_thread_signal (sig
, handle_arith_signal
);
1668 /* Treat SIG as a terminating signal, unless it is already ignored and
1669 we are in --batch mode. Among other things, this makes nohup work. */
1671 maybe_fatal_sig (int sig
)
1673 bool catch_sig
= !noninteractive
;
1676 struct sigaction old_action
;
1677 sigaction (sig
, 0, &old_action
);
1678 catch_sig
= old_action
.sa_handler
!= SIG_IGN
;
1681 sigaction (sig
, &process_fatal_action
, 0);
1685 init_signals (bool dumping
)
1687 struct sigaction thread_fatal_action
;
1688 struct sigaction action
;
1690 sigemptyset (&empty_mask
);
1692 #ifdef FORWARD_SIGNAL_TO_MAIN_THREAD
1693 main_thread
= pthread_self ();
1696 #if !HAVE_DECL_SYS_SIGLIST && !defined _sys_siglist
1699 sys_siglist
[SIGABRT
] = "Aborted";
1701 sys_siglist
[SIGAIO
] = "LAN I/O interrupt";
1704 sys_siglist
[SIGALRM
] = "Alarm clock";
1707 sys_siglist
[SIGBUS
] = "Bus error";
1710 sys_siglist
[SIGCLD
] = "Child status changed";
1713 sys_siglist
[SIGCHLD
] = "Child status changed";
1716 sys_siglist
[SIGCONT
] = "Continued";
1719 sys_siglist
[SIGDANGER
] = "Swap space dangerously low";
1722 sys_siglist
[SIGDGNOTIFY
] = "Notification message in queue";
1725 sys_siglist
[SIGEMT
] = "Emulation trap";
1727 sys_siglist
[SIGFPE
] = "Arithmetic exception";
1729 sys_siglist
[SIGFREEZE
] = "SIGFREEZE";
1732 sys_siglist
[SIGGRANT
] = "Monitor mode granted";
1735 sys_siglist
[SIGHUP
] = "Hangup";
1737 sys_siglist
[SIGILL
] = "Illegal instruction";
1738 sys_siglist
[SIGINT
] = "Interrupt";
1740 sys_siglist
[SIGIO
] = "I/O possible";
1743 sys_siglist
[SIGIOINT
] = "I/O intervention required";
1746 sys_siglist
[SIGIOT
] = "IOT trap";
1749 sys_siglist
[SIGKILL
] = "Killed";
1752 sys_siglist
[SIGLOST
] = "Resource lost";
1755 sys_siglist
[SIGLWP
] = "SIGLWP";
1758 sys_siglist
[SIGMSG
] = "Monitor mode data available";
1761 sys_siglist
[SIGWIND
] = "SIGPHONE";
1764 sys_siglist
[SIGPIPE
] = "Broken pipe";
1767 sys_siglist
[SIGPOLL
] = "Pollable event occurred";
1770 sys_siglist
[SIGPROF
] = "Profiling timer expired";
1773 sys_siglist
[SIGPTY
] = "PTY I/O interrupt";
1776 sys_siglist
[SIGPWR
] = "Power-fail restart";
1779 sys_siglist
[SIGQUIT
] = "Quit";
1782 sys_siglist
[SIGRETRACT
] = "Need to relinquish monitor mode";
1785 sys_siglist
[SIGSAK
] = "Secure attention";
1787 sys_siglist
[SIGSEGV
] = "Segmentation violation";
1789 sys_siglist
[SIGSOUND
] = "Sound completed";
1792 sys_siglist
[SIGSTOP
] = "Stopped (signal)";
1795 sys_siglist
[SIGSTP
] = "Stopped (user)";
1798 sys_siglist
[SIGSYS
] = "Bad argument to system call";
1800 sys_siglist
[SIGTERM
] = "Terminated";
1802 sys_siglist
[SIGTHAW
] = "SIGTHAW";
1805 sys_siglist
[SIGTRAP
] = "Trace/breakpoint trap";
1808 sys_siglist
[SIGTSTP
] = "Stopped (user)";
1811 sys_siglist
[SIGTTIN
] = "Stopped (tty input)";
1814 sys_siglist
[SIGTTOU
] = "Stopped (tty output)";
1817 sys_siglist
[SIGURG
] = "Urgent I/O condition";
1820 sys_siglist
[SIGUSR1
] = "User defined signal 1";
1823 sys_siglist
[SIGUSR2
] = "User defined signal 2";
1826 sys_siglist
[SIGVTALRM
] = "Virtual timer expired";
1829 sys_siglist
[SIGWAITING
] = "Process's LWPs are blocked";
1832 sys_siglist
[SIGWINCH
] = "Window size changed";
1835 sys_siglist
[SIGWIND
] = "SIGWIND";
1838 sys_siglist
[SIGXCPU
] = "CPU time limit exceeded";
1841 sys_siglist
[SIGXFSZ
] = "File size limit exceeded";
1844 #endif /* !HAVE_DECL_SYS_SIGLIST && !_sys_siglist */
1846 /* Don't alter signal handlers if dumping. On some machines,
1847 changing signal handlers sets static data that would make signals
1848 fail to work right when the dumped Emacs is run. */
1852 sigfillset (&process_fatal_action
.sa_mask
);
1853 process_fatal_action
.sa_handler
= deliver_fatal_signal
;
1854 process_fatal_action
.sa_flags
= emacs_sigaction_flags ();
1856 sigfillset (&thread_fatal_action
.sa_mask
);
1857 thread_fatal_action
.sa_handler
= deliver_fatal_thread_signal
;
1858 thread_fatal_action
.sa_flags
= process_fatal_action
.sa_flags
;
1860 /* SIGINT may need special treatment on MS-Windows. See
1861 http://lists.gnu.org/archive/html/emacs-devel/2010-09/msg01062.html
1862 Please update the doc of kill-emacs, kill-emacs-hook, and
1863 NEWS if you change this. */
1865 maybe_fatal_sig (SIGHUP
);
1866 maybe_fatal_sig (SIGINT
);
1867 maybe_fatal_sig (SIGTERM
);
1869 /* Emacs checks for write errors, so it can safely ignore SIGPIPE.
1870 However, in batch mode leave SIGPIPE alone, as that causes Emacs
1871 to behave more like typical batch applications do. */
1872 if (! noninteractive
)
1873 signal (SIGPIPE
, SIG_IGN
);
1875 sigaction (SIGQUIT
, &process_fatal_action
, 0);
1876 sigaction (SIGILL
, &thread_fatal_action
, 0);
1877 sigaction (SIGTRAP
, &thread_fatal_action
, 0);
1879 /* Typically SIGFPE is thread-specific and is fatal, like SIGILL.
1880 But on a non-IEEE host SIGFPE can come from a trap in the Lisp
1881 interpreter's floating point operations, so treat SIGFPE as an
1882 arith-error if it arises in the main thread. */
1883 if (IEEE_FLOATING_POINT
)
1884 sigaction (SIGFPE
, &thread_fatal_action
, 0);
1887 emacs_sigaction_init (&action
, deliver_arith_signal
);
1888 sigaction (SIGFPE
, &action
, 0);
1892 add_user_signal (SIGUSR1
, "sigusr1");
1895 add_user_signal (SIGUSR2
, "sigusr2");
1897 sigaction (SIGABRT
, &thread_fatal_action
, 0);
1899 sigaction (SIGPRE
, &thread_fatal_action
, 0);
1902 sigaction (SIGORE
, &thread_fatal_action
, 0);
1905 sigaction (SIGUME
, &thread_fatal_action
, 0);
1908 sigaction (SIGDLK
, &process_fatal_action
, 0);
1911 sigaction (SIGCPULIM
, &process_fatal_action
, 0);
1914 sigaction (SIGIOT
, &thread_fatal_action
, 0);
1917 sigaction (SIGEMT
, &thread_fatal_action
, 0);
1920 sigaction (SIGBUS
, &thread_fatal_action
, 0);
1922 sigaction (SIGSEGV
, &thread_fatal_action
, 0);
1924 sigaction (SIGSYS
, &thread_fatal_action
, 0);
1926 sigaction (SIGTERM
, &process_fatal_action
, 0);
1928 signal (SIGPROF
, SIG_IGN
);
1931 sigaction (SIGVTALRM
, &process_fatal_action
, 0);
1934 sigaction (SIGXCPU
, &process_fatal_action
, 0);
1937 sigaction (SIGXFSZ
, &process_fatal_action
, 0);
1941 /* This just means available memory is getting low. */
1942 emacs_sigaction_init (&action
, deliver_danger_signal
);
1943 sigaction (SIGDANGER
, &action
, 0);
1946 /* AIX-specific signals. */
1948 sigaction (SIGGRANT
, &process_fatal_action
, 0);
1951 sigaction (SIGMIGRATE
, &process_fatal_action
, 0);
1954 sigaction (SIGMSG
, &process_fatal_action
, 0);
1957 sigaction (SIGRETRACT
, &process_fatal_action
, 0);
1960 sigaction (SIGSAK
, &process_fatal_action
, 0);
1963 sigaction (SIGSOUND
, &process_fatal_action
, 0);
1966 sigaction (SIGTALRM
, &thread_fatal_action
, 0);
1976 /* Figure out how many bits the system's random number generator uses.
1977 `random' and `lrand48' are assumed to return 31 usable bits.
1978 BSD `rand' returns a 31 bit value but the low order bits are unusable;
1979 so we'll shift it and treat it like the 15-bit USG `rand'. */
1983 # define RAND_BITS 31
1984 # else /* !HAVE_RANDOM */
1985 # ifdef HAVE_LRAND48
1986 # define RAND_BITS 31
1987 # define random lrand48
1988 # else /* !HAVE_LRAND48 */
1989 # define RAND_BITS 15
1990 # if RAND_MAX == 32767
1991 # define random rand
1992 # else /* RAND_MAX != 32767 */
1993 # if RAND_MAX == 2147483647
1994 # define random() (rand () >> 16)
1995 # else /* RAND_MAX != 2147483647 */
1997 # define random rand
1999 # define random() (rand () >> 16)
2001 # endif /* RAND_MAX != 2147483647 */
2002 # endif /* RAND_MAX != 32767 */
2003 # endif /* !HAVE_LRAND48 */
2004 # endif /* !HAVE_RANDOM */
2005 #endif /* !RAND_BITS */
2008 seed_random (void *seed
, ptrdiff_t seed_size
)
2010 #if defined HAVE_RANDOM || ! defined HAVE_LRAND48
2011 unsigned int arg
= 0;
2015 unsigned char *argp
= (unsigned char *) &arg
;
2016 unsigned char *seedp
= seed
;
2018 for (i
= 0; i
< seed_size
; i
++)
2019 argp
[i
% sizeof arg
] ^= seedp
[i
];
2023 # ifdef HAVE_LRAND48
2034 EMACS_TIME t
= current_emacs_time ();
2035 uintmax_t v
= getpid () ^ EMACS_SECS (t
) ^ EMACS_NSECS (t
);
2036 seed_random (&v
, sizeof v
);
2040 * Return a nonnegative random integer out of whatever we've got.
2041 * It contains enough bits to make a random (signed) Emacs fixnum.
2042 * This suffices even for a 64-bit architecture with a 15-bit rand.
2049 for (i
= 0; i
< (FIXNUM_BITS
+ RAND_BITS
- 1) / RAND_BITS
; i
++)
2050 val
= (random () ^ (val
<< RAND_BITS
)
2051 ^ (val
>> (BITS_PER_EMACS_INT
- RAND_BITS
)));
2052 val
^= val
>> (BITS_PER_EMACS_INT
- FIXNUM_BITS
);
2053 return val
& INTMASK
;
2056 #ifndef HAVE_SNPRINTF
2057 /* Approximate snprintf as best we can on ancient hosts that lack it. */
2059 snprintf (char *buf
, size_t bufsize
, char const *format
, ...)
2061 ptrdiff_t size
= min (bufsize
, PTRDIFF_MAX
);
2062 ptrdiff_t nbytes
= size
- 1;
2067 va_start (ap
, format
);
2068 nbytes
= doprnt (buf
, size
, format
, 0, ap
);
2072 if (nbytes
== size
- 1)
2074 /* Calculate the length of the string that would have been created
2075 had the buffer been large enough. */
2076 char stackbuf
[4000];
2078 ptrdiff_t bsize
= sizeof stackbuf
;
2079 va_start (ap
, format
);
2080 nbytes
= evxprintf (&b
, &bsize
, stackbuf
, -1, format
, ap
);
2086 if (INT_MAX
< nbytes
)
2099 /* If a backtrace is available, output the top lines of it to stderr.
2100 Do not output more than BACKTRACE_LIMIT or BACKTRACE_LIMIT_MAX lines.
2101 This function may be called from a signal handler, so it should
2102 not invoke async-unsafe functions like malloc. */
2104 emacs_backtrace (int backtrace_limit
)
2106 void *main_backtrace_buffer
[BACKTRACE_LIMIT_MAX
+ 1];
2107 int bounded_limit
= min (backtrace_limit
, BACKTRACE_LIMIT_MAX
);
2111 if (thread_backtrace_npointers
)
2113 buffer
= thread_backtrace_buffer
;
2114 npointers
= thread_backtrace_npointers
;
2118 buffer
= main_backtrace_buffer
;
2119 npointers
= backtrace (buffer
, bounded_limit
+ 1);
2124 ignore_value (write (STDERR_FILENO
, "\nBacktrace:\n", 12));
2125 backtrace_symbols_fd (buffer
, npointers
, STDERR_FILENO
);
2126 if (bounded_limit
< npointers
)
2127 ignore_value (write (STDERR_FILENO
, "...\n", 4));
2135 terminate_due_to_signal (SIGABRT
, 10);
2140 emacs_open (const char *path
, int oflag
, int mode
)
2142 register int rtnval
;
2144 while ((rtnval
= open (path
, oflag
, mode
)) == -1
2145 && (errno
== EINTR
))
2151 emacs_close (int fd
)
2154 register int rtnval
;
2156 while ((rtnval
= close (fd
)) == -1
2157 && (errno
== EINTR
))
2160 /* If close is interrupted SunOS 4.1 may or may not have closed the
2161 file descriptor. If it did the second close will fail with
2162 errno = EBADF. That means we have succeeded. */
2163 if (rtnval
== -1 && did_retry
&& errno
== EBADF
)
2169 /* Maximum number of bytes to read or write in a single system call.
2170 This works around a serious bug in Linux kernels before 2.6.16; see
2171 <https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=612839>.
2172 It's likely to work around similar bugs in other operating systems, so do it
2173 on all platforms. Round INT_MAX down to a page size, with the conservative
2174 assumption that page sizes are at most 2**18 bytes (any kernel with a
2175 page size larger than that shouldn't have the bug). */
2176 #ifndef MAX_RW_COUNT
2177 #define MAX_RW_COUNT (INT_MAX >> 18 << 18)
2180 /* Read from FILEDESC to a buffer BUF with size NBYTE, retrying if interrupted.
2181 Return the number of bytes read, which might be less than NBYTE.
2182 On error, set errno and return -1. */
2184 emacs_read (int fildes
, char *buf
, ptrdiff_t nbyte
)
2186 register ssize_t rtnval
;
2188 /* There is no need to check against MAX_RW_COUNT, since no caller ever
2189 passes a size that large to emacs_read. */
2191 while ((rtnval
= read (fildes
, buf
, nbyte
)) == -1
2192 && (errno
== EINTR
))
2197 /* Write to FILEDES from a buffer BUF with size NBYTE, retrying if interrupted
2198 or if a partial write occurs. Return the number of bytes written, setting
2199 errno if this is less than NBYTE. */
2201 emacs_write (int fildes
, const char *buf
, ptrdiff_t nbyte
)
2204 ptrdiff_t bytes_written
;
2210 rtnval
= write (fildes
, buf
, min (nbyte
, MAX_RW_COUNT
));
2216 /* I originally used `QUIT' but that might causes files to
2217 be truncated if you hit C-g in the middle of it. --Stef */
2218 if (pending_signals
)
2219 process_pending_signals ();
2228 bytes_written
+= rtnval
;
2231 return (bytes_written
);
2234 static struct allocator
const emacs_norealloc_allocator
=
2235 { xmalloc
, NULL
, xfree
, memory_full
};
2237 /* Get the symbolic link value of FILENAME. Return a pointer to a
2238 NUL-terminated string. If readlink fails, return NULL and set
2239 errno. If the value fits in INITIAL_BUF, return INITIAL_BUF.
2240 Otherwise, allocate memory and return a pointer to that memory. If
2241 memory allocation fails, diagnose and fail without returning. If
2242 successful, store the length of the symbolic link into *LINKLEN. */
2244 emacs_readlink (char const *filename
, char initial_buf
[READLINK_BUFSIZE
])
2246 return careadlinkat (AT_FDCWD
, filename
, initial_buf
, READLINK_BUFSIZE
,
2247 &emacs_norealloc_allocator
, careadlinkatcwd
);
2250 /* Return a struct timeval that is roughly equivalent to T.
2251 Use the least timeval not less than T.
2252 Return an extremal value if the result would overflow. */
2254 make_timeval (EMACS_TIME t
)
2257 tv
.tv_sec
= t
.tv_sec
;
2258 tv
.tv_usec
= t
.tv_nsec
/ 1000;
2260 if (t
.tv_nsec
% 1000 != 0)
2262 if (tv
.tv_usec
< 999999)
2264 else if (tv
.tv_sec
< TYPE_MAXIMUM (time_t))
2274 /* Set the access and modification time stamps of FD (a.k.a. FILE) to be
2275 ATIME and MTIME, respectively.
2276 FD must be either negative -- in which case it is ignored --
2277 or a file descriptor that is open on FILE.
2278 If FD is nonnegative, then FILE can be NULL. */
2280 set_file_times (int fd
, const char *filename
,
2281 EMACS_TIME atime
, EMACS_TIME mtime
)
2283 struct timespec timespec
[2];
2284 timespec
[0] = atime
;
2285 timespec
[1] = mtime
;
2286 return fdutimens (fd
, filename
, timespec
);
2289 /* Like strsignal, except async-signal-safe, and this function typically
2290 returns a string in the C locale rather than the current locale. */
2292 safe_strsignal (int code
)
2294 char const *signame
= 0;
2296 if (0 <= code
&& code
< sys_siglist_entries
)
2297 signame
= sys_siglist
[code
];
2299 signame
= "Unknown signal";
2305 /* For make-serial-process */
2307 serial_open (char *port
)
2309 int fd
= emacs_open (port
, O_RDWR
| O_NOCTTY
| O_NONBLOCK
, 0);
2312 error ("Could not open %s: %s",
2313 port
, emacs_strerror (errno
));
2316 ioctl (fd
, TIOCEXCL
, (char *) 0);
2322 #if !defined (HAVE_CFMAKERAW)
2323 /* Workaround for targets which are missing cfmakeraw. */
2324 /* Pasted from man page. */
2326 cfmakeraw (struct termios
*termios_p
)
2328 termios_p
->c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
|INLCR
|IGNCR
|ICRNL
|IXON
);
2329 termios_p
->c_oflag
&= ~OPOST
;
2330 termios_p
->c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|ISIG
|IEXTEN
);
2331 termios_p
->c_cflag
&= ~(CSIZE
|PARENB
);
2332 termios_p
->c_cflag
|= CS8
;
2334 #endif /* !defined (HAVE_CFMAKERAW */
2336 #if !defined (HAVE_CFSETSPEED)
2337 /* Workaround for targets which are missing cfsetspeed. */
2339 cfsetspeed (struct termios
*termios_p
, speed_t vitesse
)
2341 return (cfsetispeed (termios_p
, vitesse
)
2342 + cfsetospeed (termios_p
, vitesse
));
2346 /* For serial-process-configure */
2348 serial_configure (struct Lisp_Process
*p
,
2349 Lisp_Object contact
)
2351 Lisp_Object childp2
= Qnil
;
2352 Lisp_Object tem
= Qnil
;
2353 struct termios attr
;
2355 char summary
[4] = "???"; /* This usually becomes "8N1". */
2357 childp2
= Fcopy_sequence (p
->childp
);
2359 /* Read port attributes and prepare default configuration. */
2360 err
= tcgetattr (p
->outfd
, &attr
);
2362 error ("tcgetattr() failed: %s", emacs_strerror (errno
));
2364 #if defined (CLOCAL)
2365 attr
.c_cflag
|= CLOCAL
;
2368 attr
.c_cflag
|= CREAD
;
2371 /* Configure speed. */
2372 if (!NILP (Fplist_member (contact
, QCspeed
)))
2373 tem
= Fplist_get (contact
, QCspeed
);
2375 tem
= Fplist_get (p
->childp
, QCspeed
);
2377 err
= cfsetspeed (&attr
, XINT (tem
));
2379 error ("cfsetspeed(%"pI
"d) failed: %s", XINT (tem
),
2380 emacs_strerror (errno
));
2381 childp2
= Fplist_put (childp2
, QCspeed
, tem
);
2383 /* Configure bytesize. */
2384 if (!NILP (Fplist_member (contact
, QCbytesize
)))
2385 tem
= Fplist_get (contact
, QCbytesize
);
2387 tem
= Fplist_get (p
->childp
, QCbytesize
);
2389 tem
= make_number (8);
2391 if (XINT (tem
) != 7 && XINT (tem
) != 8)
2392 error (":bytesize must be nil (8), 7, or 8");
2393 summary
[0] = XINT (tem
) + '0';
2394 #if defined (CSIZE) && defined (CS7) && defined (CS8)
2395 attr
.c_cflag
&= ~CSIZE
;
2396 attr
.c_cflag
|= ((XINT (tem
) == 7) ? CS7
: CS8
);
2398 /* Don't error on bytesize 8, which should be set by cfmakeraw. */
2399 if (XINT (tem
) != 8)
2400 error ("Bytesize cannot be changed");
2402 childp2
= Fplist_put (childp2
, QCbytesize
, tem
);
2404 /* Configure parity. */
2405 if (!NILP (Fplist_member (contact
, QCparity
)))
2406 tem
= Fplist_get (contact
, QCparity
);
2408 tem
= Fplist_get (p
->childp
, QCparity
);
2409 if (!NILP (tem
) && !EQ (tem
, Qeven
) && !EQ (tem
, Qodd
))
2410 error (":parity must be nil (no parity), `even', or `odd'");
2411 #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK)
2412 attr
.c_cflag
&= ~(PARENB
| PARODD
);
2413 attr
.c_iflag
&= ~(IGNPAR
| INPCK
);
2418 else if (EQ (tem
, Qeven
))
2421 attr
.c_cflag
|= PARENB
;
2422 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2424 else if (EQ (tem
, Qodd
))
2427 attr
.c_cflag
|= (PARENB
| PARODD
);
2428 attr
.c_iflag
|= (IGNPAR
| INPCK
);
2431 /* Don't error on no parity, which should be set by cfmakeraw. */
2433 error ("Parity cannot be configured");
2435 childp2
= Fplist_put (childp2
, QCparity
, tem
);
2437 /* Configure stopbits. */
2438 if (!NILP (Fplist_member (contact
, QCstopbits
)))
2439 tem
= Fplist_get (contact
, QCstopbits
);
2441 tem
= Fplist_get (p
->childp
, QCstopbits
);
2443 tem
= make_number (1);
2445 if (XINT (tem
) != 1 && XINT (tem
) != 2)
2446 error (":stopbits must be nil (1 stopbit), 1, or 2");
2447 summary
[2] = XINT (tem
) + '0';
2448 #if defined (CSTOPB)
2449 attr
.c_cflag
&= ~CSTOPB
;
2450 if (XINT (tem
) == 2)
2451 attr
.c_cflag
|= CSTOPB
;
2453 /* Don't error on 1 stopbit, which should be set by cfmakeraw. */
2454 if (XINT (tem
) != 1)
2455 error ("Stopbits cannot be configured");
2457 childp2
= Fplist_put (childp2
, QCstopbits
, tem
);
2459 /* Configure flowcontrol. */
2460 if (!NILP (Fplist_member (contact
, QCflowcontrol
)))
2461 tem
= Fplist_get (contact
, QCflowcontrol
);
2463 tem
= Fplist_get (p
->childp
, QCflowcontrol
);
2464 if (!NILP (tem
) && !EQ (tem
, Qhw
) && !EQ (tem
, Qsw
))
2465 error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'");
2466 #if defined (CRTSCTS)
2467 attr
.c_cflag
&= ~CRTSCTS
;
2469 #if defined (CNEW_RTSCTS)
2470 attr
.c_cflag
&= ~CNEW_RTSCTS
;
2472 #if defined (IXON) && defined (IXOFF)
2473 attr
.c_iflag
&= ~(IXON
| IXOFF
);
2477 /* Already configured. */
2479 else if (EQ (tem
, Qhw
))
2481 #if defined (CRTSCTS)
2482 attr
.c_cflag
|= CRTSCTS
;
2483 #elif defined (CNEW_RTSCTS)
2484 attr
.c_cflag
|= CNEW_RTSCTS
;
2486 error ("Hardware flowcontrol (RTS/CTS) not supported");
2489 else if (EQ (tem
, Qsw
))
2491 #if defined (IXON) && defined (IXOFF)
2492 attr
.c_iflag
|= (IXON
| IXOFF
);
2494 error ("Software flowcontrol (XON/XOFF) not supported");
2497 childp2
= Fplist_put (childp2
, QCflowcontrol
, tem
);
2499 /* Activate configuration. */
2500 err
= tcsetattr (p
->outfd
, TCSANOW
, &attr
);
2502 error ("tcsetattr() failed: %s", emacs_strerror (errno
));
2504 childp2
= Fplist_put (childp2
, QCsummary
, build_string (summary
));
2505 pset_childp (p
, childp2
);
2507 #endif /* not DOS_NT */
2509 /* System depended enumeration of and access to system processes a-la ps(1). */
2513 /* Process enumeration and access via /proc. */
2516 list_system_processes (void)
2518 Lisp_Object procdir
, match
, proclist
, next
;
2519 struct gcpro gcpro1
, gcpro2
;
2520 register Lisp_Object tail
;
2522 GCPRO2 (procdir
, match
);
2523 /* For every process on the system, there's a directory in the
2524 "/proc" pseudo-directory whose name is the numeric ID of that
2526 procdir
= build_string ("/proc");
2527 match
= build_string ("[0-9]+");
2528 proclist
= directory_files_internal (procdir
, Qnil
, match
, Qt
, 0, Qnil
);
2530 /* `proclist' gives process IDs as strings. Destructively convert
2531 each string into a number. */
2532 for (tail
= proclist
; CONSP (tail
); tail
= next
)
2535 XSETCAR (tail
, Fstring_to_number (XCAR (tail
), Qnil
));
2539 /* directory_files_internal returns the files in reverse order; undo
2541 proclist
= Fnreverse (proclist
);
2545 #elif defined BSD_SYSTEM
2548 list_system_processes (void)
2550 #if defined DARWIN_OS || defined __NetBSD__ || defined __OpenBSD__
2551 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_ALL
};
2553 int mib
[] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PROC
};
2556 struct kinfo_proc
*procs
;
2559 struct gcpro gcpro1
;
2560 Lisp_Object proclist
= Qnil
;
2562 if (sysctl (mib
, 3, NULL
, &len
, NULL
, 0) != 0)
2565 procs
= xmalloc (len
);
2566 if (sysctl (mib
, 3, procs
, &len
, NULL
, 0) != 0)
2573 len
/= sizeof (struct kinfo_proc
);
2574 for (i
= 0; i
< len
; i
++)
2576 #if defined DARWIN_OS || defined __NetBSD__
2577 proclist
= Fcons (make_fixnum_or_float (procs
[i
].kp_proc
.p_pid
), proclist
);
2578 #elif defined __OpenBSD__
2579 proclist
= Fcons (make_fixnum_or_float (procs
[i
].p_pid
), proclist
);
2581 proclist
= Fcons (make_fixnum_or_float (procs
[i
].ki_pid
), proclist
);
2591 /* The WINDOWSNT implementation is in w32.c.
2592 The MSDOS implementation is in dosfns.c. */
2593 #elif !defined (WINDOWSNT) && !defined (MSDOS)
2596 list_system_processes (void)
2601 #endif /* !defined (WINDOWSNT) */
2605 time_from_jiffies (unsigned long long tval
, long hz
)
2607 unsigned long long s
= tval
/ hz
;
2608 unsigned long long frac
= tval
% hz
;
2611 if (TYPE_MAXIMUM (time_t) < s
)
2613 if (LONG_MAX
- 1 <= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
2614 || frac
<= ULLONG_MAX
/ EMACS_TIME_RESOLUTION
)
2615 ns
= frac
* EMACS_TIME_RESOLUTION
/ hz
;
2618 /* This is reachable only in the unlikely case that HZ * HZ
2619 exceeds ULLONG_MAX. It calculates an approximation that is
2620 guaranteed to be in range. */
2621 long hz_per_ns
= (hz
/ EMACS_TIME_RESOLUTION
2622 + (hz
% EMACS_TIME_RESOLUTION
!= 0));
2623 ns
= frac
/ hz_per_ns
;
2626 return make_emacs_time (s
, ns
);
2630 ltime_from_jiffies (unsigned long long tval
, long hz
)
2632 EMACS_TIME t
= time_from_jiffies (tval
, hz
);
2633 return make_lisp_time (t
);
2640 EMACS_TIME up
= make_emacs_time (0, 0);
2643 fup
= fopen ("/proc/uptime", "r");
2647 unsigned long long upsec
, upfrac
, idlesec
, idlefrac
;
2648 int upfrac_start
, upfrac_end
, idlefrac_start
, idlefrac_end
;
2650 if (fscanf (fup
, "%llu.%n%llu%n %llu.%n%llu%n",
2651 &upsec
, &upfrac_start
, &upfrac
, &upfrac_end
,
2652 &idlesec
, &idlefrac_start
, &idlefrac
, &idlefrac_end
)
2655 if (TYPE_MAXIMUM (time_t) < upsec
)
2657 upsec
= TYPE_MAXIMUM (time_t);
2658 upfrac
= EMACS_TIME_RESOLUTION
- 1;
2662 int upfraclen
= upfrac_end
- upfrac_start
;
2663 for (; upfraclen
< LOG10_EMACS_TIME_RESOLUTION
; upfraclen
++)
2665 for (; LOG10_EMACS_TIME_RESOLUTION
< upfraclen
; upfraclen
--)
2667 upfrac
= min (upfrac
, EMACS_TIME_RESOLUTION
- 1);
2669 up
= make_emacs_time (upsec
, upfrac
);
2678 #define MAJOR(d) (((unsigned)(d) >> 8) & 0xfff)
2679 #define MINOR(d) (((unsigned)(d) & 0xff) | (((unsigned)(d) & 0xfff00000) >> 12))
2682 procfs_ttyname (int rdev
)
2685 char name
[PATH_MAX
];
2688 fdev
= fopen ("/proc/tty/drivers", "r");
2693 unsigned long minor_beg
, minor_end
;
2694 char minor
[25]; /* 2 32-bit numbers + dash */
2697 while (!feof (fdev
) && !ferror (fdev
))
2699 if (3 <= fscanf (fdev
, "%*s %s %u %s %*s\n", name
, &major
, minor
)
2700 && major
== MAJOR (rdev
))
2702 minor_beg
= strtoul (minor
, &endp
, 0);
2704 minor_end
= minor_beg
;
2705 else if (*endp
== '-')
2706 minor_end
= strtoul (endp
+ 1, &endp
, 0);
2710 if (MINOR (rdev
) >= minor_beg
&& MINOR (rdev
) <= minor_end
)
2712 sprintf (name
+ strlen (name
), "%u", MINOR (rdev
));
2720 return build_string (name
);
2723 static unsigned long
2724 procfs_get_total_memory (void)
2727 unsigned long retval
= 2 * 1024 * 1024; /* default: 2GB */
2730 fmem
= fopen ("/proc/meminfo", "r");
2734 unsigned long entry_value
;
2735 char entry_name
[20]; /* the longest I saw is 13+1 */
2737 while (!feof (fmem
) && !ferror (fmem
))
2739 if (2 <= fscanf (fmem
, "%s %lu kB\n", entry_name
, &entry_value
)
2740 && strcmp (entry_name
, "MemTotal:") == 0)
2742 retval
= entry_value
;
2753 system_process_attributes (Lisp_Object pid
)
2755 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
2759 long clocks_per_sec
;
2761 char procbuf
[1025], *p
, *q
;
2764 static char const default_cmd
[] = "???";
2765 const char *cmd
= default_cmd
;
2766 int cmdsize
= sizeof default_cmd
- 1;
2767 char *cmdline
= NULL
;
2768 ptrdiff_t cmdline_size
;
2771 int ppid
, pgrp
, sess
, tty
, tpgid
, thcount
;
2774 unsigned long long u_time
, s_time
, cutime
, cstime
, start
;
2775 long priority
, niceness
, rss
;
2776 unsigned long minflt
, majflt
, cminflt
, cmajflt
, vsize
;
2777 EMACS_TIME tnow
, tstart
, tboot
, telapsed
, us_time
;
2779 Lisp_Object attrs
= Qnil
;
2780 Lisp_Object cmd_str
, decoded_cmd
, tem
;
2781 struct gcpro gcpro1
, gcpro2
;
2783 CHECK_NUMBER_OR_FLOAT (pid
);
2784 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
2785 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
2786 if (stat (procfn
, &st
) < 0)
2789 GCPRO2 (attrs
, decoded_cmd
);
2793 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
2795 pw
= getpwuid (uid
);
2798 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
2801 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
2803 gr
= getgrgid (gid
);
2806 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
2808 strcpy (fn
, procfn
);
2809 procfn_end
= fn
+ strlen (fn
);
2810 strcpy (procfn_end
, "/stat");
2811 fd
= emacs_open (fn
, O_RDONLY
, 0);
2812 if (fd
>= 0 && (nread
= emacs_read (fd
, procbuf
, sizeof (procbuf
) - 1)) > 0)
2814 procbuf
[nread
] = '\0';
2817 p
= strchr (p
, '(');
2820 q
= strrchr (p
+ 1, ')');
2830 /* Command name is encoded in locale-coding-system; decode it. */
2831 cmd_str
= make_unibyte_string (cmd
, cmdsize
);
2832 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2833 Vlocale_coding_system
, 0);
2834 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
2838 EMACS_INT ppid_eint
, pgrp_eint
, sess_eint
, tpgid_eint
, thcount_eint
;
2840 /* state ppid pgrp sess tty tpgid . minflt cminflt majflt cmajflt utime stime cutime cstime priority nice thcount . start vsize rss */
2841 sscanf (p
, "%c %d %d %d %d %d %*u %lu %lu %lu %lu %Lu %Lu %Lu %Lu %ld %ld %d %*d %Lu %lu %ld",
2842 &c
, &ppid
, &pgrp
, &sess
, &tty
, &tpgid
,
2843 &minflt
, &cminflt
, &majflt
, &cmajflt
,
2844 &u_time
, &s_time
, &cutime
, &cstime
,
2845 &priority
, &niceness
, &thcount
, &start
, &vsize
, &rss
);
2850 state_str
[1] = '\0';
2851 tem
= build_string (state_str
);
2852 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
2854 /* Stops GCC whining about limited range of data type. */
2859 thcount_eint
= thcount
;
2860 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (ppid_eint
)), attrs
);
2861 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pgrp_eint
)), attrs
);
2862 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (sess_eint
)), attrs
);
2863 attrs
= Fcons (Fcons (Qttname
, procfs_ttyname (tty
)), attrs
);
2864 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (tpgid_eint
)), attrs
);
2865 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (minflt
)), attrs
);
2866 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (majflt
)), attrs
);
2867 attrs
= Fcons (Fcons (Qcminflt
, make_fixnum_or_float (cminflt
)), attrs
);
2868 attrs
= Fcons (Fcons (Qcmajflt
, make_fixnum_or_float (cmajflt
)), attrs
);
2869 clocks_per_sec
= sysconf (_SC_CLK_TCK
);
2870 if (clocks_per_sec
< 0)
2871 clocks_per_sec
= 100;
2872 attrs
= Fcons (Fcons (Qutime
,
2873 ltime_from_jiffies (u_time
, clocks_per_sec
)),
2875 attrs
= Fcons (Fcons (Qstime
,
2876 ltime_from_jiffies (s_time
, clocks_per_sec
)),
2878 attrs
= Fcons (Fcons (Qtime
,
2879 ltime_from_jiffies (s_time
+ u_time
,
2882 attrs
= Fcons (Fcons (Qcutime
,
2883 ltime_from_jiffies (cutime
, clocks_per_sec
)),
2885 attrs
= Fcons (Fcons (Qcstime
,
2886 ltime_from_jiffies (cstime
, clocks_per_sec
)),
2888 attrs
= Fcons (Fcons (Qctime
,
2889 ltime_from_jiffies (cstime
+cutime
, clocks_per_sec
)),
2891 attrs
= Fcons (Fcons (Qpri
, make_number (priority
)), attrs
);
2892 attrs
= Fcons (Fcons (Qnice
, make_number (niceness
)), attrs
);
2893 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (thcount_eint
)), attrs
);
2894 tnow
= current_emacs_time ();
2895 telapsed
= get_up_time ();
2896 tboot
= sub_emacs_time (tnow
, telapsed
);
2897 tstart
= time_from_jiffies (start
, clocks_per_sec
);
2898 tstart
= add_emacs_time (tboot
, tstart
);
2899 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (tstart
)), attrs
);
2900 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (vsize
/1024)), attrs
);
2901 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (4*rss
)), attrs
);
2902 telapsed
= sub_emacs_time (tnow
, tstart
);
2903 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (telapsed
)), attrs
);
2904 us_time
= time_from_jiffies (u_time
+ s_time
, clocks_per_sec
);
2905 pcpu
= (EMACS_TIME_TO_DOUBLE (us_time
)
2906 / EMACS_TIME_TO_DOUBLE (telapsed
));
2909 attrs
= Fcons (Fcons (Qpcpu
, make_float (100 * pcpu
)), attrs
);
2910 pmem
= 4.0 * 100 * rss
/ procfs_get_total_memory ();
2913 attrs
= Fcons (Fcons (Qpmem
, make_float (pmem
)), attrs
);
2920 strcpy (procfn_end
, "/cmdline");
2921 fd
= emacs_open (fn
, O_RDONLY
, 0);
2925 for (cmdline_size
= 0; cmdline_size
< STRING_BYTES_BOUND
; cmdline_size
++)
2927 if (emacs_read (fd
, &ch
, 1) != 1)
2930 if (c_isspace (c
) || c
== '\\')
2931 cmdline_size
++; /* for later quoting, see below */
2935 cmdline
= xmalloc (cmdline_size
+ 1);
2936 lseek (fd
, 0L, SEEK_SET
);
2938 if ((nread
= read (fd
, cmdline
, cmdline_size
)) >= 0)
2939 cmdline
[nread
++] = '\0';
2942 /* Assigning zero to `nread' makes us skip the following
2943 two loops, assign zero to cmdline_size, and enter the
2944 following `if' clause that handles unknown command
2948 /* We don't want trailing null characters. */
2949 for (p
= cmdline
+ nread
; p
> cmdline
+ 1 && !p
[-1]; p
--)
2951 for (p
= cmdline
; p
< cmdline
+ nread
; p
++)
2953 /* Escape-quote whitespace and backslashes. */
2954 if (c_isspace (*p
) || *p
== '\\')
2956 memmove (p
+ 1, p
, nread
- (p
- cmdline
));
2960 else if (*p
== '\0')
2963 cmdline_size
= nread
;
2967 cmdline_size
= cmdsize
+ 2;
2968 cmdline
= xmalloc (cmdline_size
+ 1);
2969 sprintf (cmdline
, "[%.*s]", cmdsize
, cmd
);
2972 /* Command line is encoded in locale-coding-system; decode it. */
2973 cmd_str
= make_unibyte_string (cmdline
, cmdline_size
);
2974 decoded_cmd
= code_convert_string_norecord (cmd_str
,
2975 Vlocale_coding_system
, 0);
2977 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
2984 #elif defined (SOLARIS2) && defined (HAVE_PROCFS)
2986 /* The <procfs.h> header does not like to be included if _LP64 is defined and
2987 __FILE_OFFSET_BITS == 64. This is an ugly workaround that. */
2988 #if !defined (_LP64) && defined (_FILE_OFFSET_BITS) && (_FILE_OFFSET_BITS == 64)
2989 #define PROCFS_FILE_OFFSET_BITS_HACK 1
2990 #undef _FILE_OFFSET_BITS
2992 #define PROCFS_FILE_OFFSET_BITS_HACK 0
2997 #if PROCFS_FILE_OFFSET_BITS_HACK == 1
2998 #define _FILE_OFFSET_BITS 64
2999 #ifdef _FILE_OFFSET_BITS /* Avoid unused-macro warnings. */
3001 #endif /* PROCFS_FILE_OFFSET_BITS_HACK == 1 */
3004 system_process_attributes (Lisp_Object pid
)
3006 char procfn
[PATH_MAX
], fn
[PATH_MAX
];
3011 struct psinfo pinfo
;
3017 Lisp_Object attrs
= Qnil
;
3018 Lisp_Object decoded_cmd
, tem
;
3019 struct gcpro gcpro1
, gcpro2
;
3021 CHECK_NUMBER_OR_FLOAT (pid
);
3022 CONS_TO_INTEGER (pid
, pid_t
, proc_id
);
3023 sprintf (procfn
, "/proc/%"pMd
, proc_id
);
3024 if (stat (procfn
, &st
) < 0)
3027 GCPRO2 (attrs
, decoded_cmd
);
3031 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (uid
)), attrs
);
3033 pw
= getpwuid (uid
);
3036 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3039 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (gid
)), attrs
);
3041 gr
= getgrgid (gid
);
3044 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3046 strcpy (fn
, procfn
);
3047 procfn_end
= fn
+ strlen (fn
);
3048 strcpy (procfn_end
, "/psinfo");
3049 fd
= emacs_open (fn
, O_RDONLY
, 0);
3051 && (nread
= read (fd
, (char*)&pinfo
, sizeof (struct psinfo
)) > 0))
3053 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (pinfo
.pr_ppid
)), attrs
);
3054 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (pinfo
.pr_pgid
)), attrs
);
3055 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (pinfo
.pr_sid
)), attrs
);
3059 state_str
[0] = pinfo
.pr_lwp
.pr_sname
;
3060 state_str
[1] = '\0';
3061 tem
= build_string (state_str
);
3062 attrs
= Fcons (Fcons (Qstate
, tem
), attrs
);
3065 /* FIXME: missing Qttyname. psinfo.pr_ttydev is a dev_t,
3066 need to get a string from it. */
3068 /* FIXME: missing: Qtpgid */
3080 Are they available? */
3082 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (pinfo
.pr_time
)), attrs
);
3083 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (pinfo
.pr_ctime
)), attrs
);
3084 attrs
= Fcons (Fcons (Qpri
, make_number (pinfo
.pr_lwp
.pr_pri
)), attrs
);
3085 attrs
= Fcons (Fcons (Qnice
, make_number (pinfo
.pr_lwp
.pr_nice
)), attrs
);
3086 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (pinfo
.pr_nlwp
)), attrs
);
3088 attrs
= Fcons (Fcons (Qstart
, make_lisp_time (pinfo
.pr_start
)), attrs
);
3089 attrs
= Fcons (Fcons (Qvsize
, make_fixnum_or_float (pinfo
.pr_size
)), attrs
);
3090 attrs
= Fcons (Fcons (Qrss
, make_fixnum_or_float (pinfo
.pr_rssize
)), attrs
);
3092 /* pr_pctcpu and pr_pctmem are unsigned integers in the
3093 range 0 .. 2**15, representing 0.0 .. 1.0. */
3094 attrs
= Fcons (Fcons (Qpcpu
, make_float (100.0 / 0x8000 * pinfo
.pr_pctcpu
)), attrs
);
3095 attrs
= Fcons (Fcons (Qpmem
, make_float (100.0 / 0x8000 * pinfo
.pr_pctmem
)), attrs
);
3098 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_fname
,
3099 strlen (pinfo
.pr_fname
)),
3100 Vlocale_coding_system
, 0);
3101 attrs
= Fcons (Fcons (Qcomm
, decoded_cmd
), attrs
);
3103 = code_convert_string_norecord (make_unibyte_string (pinfo
.pr_psargs
,
3104 strlen (pinfo
.pr_psargs
)),
3105 Vlocale_coding_system
, 0);
3106 attrs
= Fcons (Fcons (Qargs
, decoded_cmd
), attrs
);
3116 #elif defined __FreeBSD__
3119 timeval_to_EMACS_TIME (struct timeval t
)
3121 return make_emacs_time (t
.tv_sec
, t
.tv_usec
* 1000);
3125 make_lisp_timeval (struct timeval t
)
3127 return make_lisp_time (timeval_to_EMACS_TIME (t
));
3131 system_process_attributes (Lisp_Object pid
)
3134 int pagesize
= getpagesize ();
3141 char args
[MAXPATHLEN
];
3144 int mib
[4] = {CTL_KERN
, KERN_PROC
, KERN_PROC_PID
};
3145 struct kinfo_proc proc
;
3146 size_t proclen
= sizeof proc
;
3148 struct gcpro gcpro1
, gcpro2
;
3149 Lisp_Object attrs
= Qnil
;
3150 Lisp_Object decoded_comm
;
3152 CHECK_NUMBER_OR_FLOAT (pid
);
3153 CONS_TO_INTEGER (pid
, int, proc_id
);
3156 if (sysctl (mib
, 4, &proc
, &proclen
, NULL
, 0) != 0)
3159 GCPRO2 (attrs
, decoded_comm
);
3161 attrs
= Fcons (Fcons (Qeuid
, make_fixnum_or_float (proc
.ki_uid
)), attrs
);
3164 pw
= getpwuid (proc
.ki_uid
);
3167 attrs
= Fcons (Fcons (Quser
, build_string (pw
->pw_name
)), attrs
);
3169 attrs
= Fcons (Fcons (Qegid
, make_fixnum_or_float (proc
.ki_svgid
)), attrs
);
3172 gr
= getgrgid (proc
.ki_svgid
);
3175 attrs
= Fcons (Fcons (Qgroup
, build_string (gr
->gr_name
)), attrs
);
3177 decoded_comm
= code_convert_string_norecord
3178 (make_unibyte_string (proc
.ki_comm
, strlen (proc
.ki_comm
)),
3179 Vlocale_coding_system
, 0);
3181 attrs
= Fcons (Fcons (Qcomm
, decoded_comm
), attrs
);
3183 char state
[2] = {'\0', '\0'};
3184 switch (proc
.ki_stat
)
3206 attrs
= Fcons (Fcons (Qstate
, build_string (state
)), attrs
);
3209 attrs
= Fcons (Fcons (Qppid
, make_fixnum_or_float (proc
.ki_ppid
)), attrs
);
3210 attrs
= Fcons (Fcons (Qpgrp
, make_fixnum_or_float (proc
.ki_pgid
)), attrs
);
3211 attrs
= Fcons (Fcons (Qsess
, make_fixnum_or_float (proc
.ki_sid
)), attrs
);
3214 ttyname
= proc
.ki_tdev
== NODEV
? NULL
: devname (proc
.ki_tdev
, S_IFCHR
);
3217 attrs
= Fcons (Fcons (Qtty
, build_string (ttyname
)), attrs
);
3219 attrs
= Fcons (Fcons (Qtpgid
, make_fixnum_or_float (proc
.ki_tpgid
)), attrs
);
3220 attrs
= Fcons (Fcons (Qminflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_minflt
)), attrs
);
3221 attrs
= Fcons (Fcons (Qmajflt
, make_fixnum_or_float (proc
.ki_rusage
.ru_majflt
)), attrs
);
3222 attrs
= Fcons (Fcons (Qcminflt
, make_number (proc
.ki_rusage_ch
.ru_minflt
)), attrs
);
3223 attrs
= Fcons (Fcons (Qcmajflt
, make_number (proc
.ki_rusage_ch
.ru_majflt
)), attrs
);
3225 attrs
= Fcons (Fcons (Qutime
, make_lisp_timeval (proc
.ki_rusage
.ru_utime
)),
3227 attrs
= Fcons (Fcons (Qstime
, make_lisp_timeval (proc
.ki_rusage
.ru_stime
)),
3229 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_utime
),
3230 timeval_to_EMACS_TIME (proc
.ki_rusage
.ru_stime
));
3231 attrs
= Fcons (Fcons (Qtime
, make_lisp_time (t
)), attrs
);
3233 attrs
= Fcons (Fcons (Qcutime
,
3234 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3236 attrs
= Fcons (Fcons (Qcstime
,
3237 make_lisp_timeval (proc
.ki_rusage_ch
.ru_utime
)),
3239 t
= add_emacs_time (timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_utime
),
3240 timeval_to_EMACS_TIME (proc
.ki_rusage_ch
.ru_stime
));
3241 attrs
= Fcons (Fcons (Qctime
, make_lisp_time (t
)), attrs
);
3243 attrs
= Fcons (Fcons (Qthcount
, make_fixnum_or_float (proc
.ki_numthreads
)),
3245 attrs
= Fcons (Fcons (Qpri
, make_number (proc
.ki_pri
.pri_native
)), attrs
);
3246 attrs
= Fcons (Fcons (Qnice
, make_number (proc
.ki_nice
)), attrs
);
3247 attrs
= Fcons (Fcons (Qstart
, make_lisp_timeval (proc
.ki_start
)), attrs
);
3248 attrs
= Fcons (Fcons (Qvsize
, make_number (proc
.ki_size
>> 10)), attrs
);
3249 attrs
= Fcons (Fcons (Qrss
, make_number (proc
.ki_rssize
* pagesize
>> 10)),
3252 now
= current_emacs_time ();
3253 t
= sub_emacs_time (now
, timeval_to_EMACS_TIME (proc
.ki_start
));
3254 attrs
= Fcons (Fcons (Qetime
, make_lisp_time (t
)), attrs
);
3256 len
= sizeof fscale
;
3257 if (sysctlbyname ("kern.fscale", &fscale
, &len
, NULL
, 0) == 0)
3262 if (sysctlbyname ("kern.ccpu", &ccpu
, &len
, NULL
, 0) == 0)
3264 pcpu
= (100.0 * proc
.ki_pctcpu
/ fscale
3265 / (1 - exp (proc
.ki_swtime
* log ((double) ccpu
/ fscale
))));
3266 attrs
= Fcons (Fcons (Qpcpu
, make_fixnum_or_float (pcpu
)), attrs
);
3270 len
= sizeof npages
;
3271 if (sysctlbyname ("hw.availpages", &npages
, &len
, NULL
, 0) == 0)
3273 double pmem
= (proc
.ki_flag
& P_INMEM
3274 ? 100.0 * proc
.ki_rssize
/ npages
3276 attrs
= Fcons (Fcons (Qpmem
, make_fixnum_or_float (pmem
)), attrs
);
3279 mib
[2] = KERN_PROC_ARGS
;
3281 if (sysctl (mib
, 4, args
, &len
, NULL
, 0) == 0)
3284 for (i
= 0; i
< len
; i
++)
3286 if (! args
[i
] && i
< len
- 1)
3291 (code_convert_string_norecord
3292 (build_unibyte_string (args
),
3293 Vlocale_coding_system
, 0));
3295 attrs
= Fcons (Fcons (Qargs
, decoded_comm
), attrs
);
3302 /* The WINDOWSNT implementation is in w32.c.
3303 The MSDOS implementation is in dosfns.c. */
3304 #elif !defined (WINDOWSNT) && !defined (MSDOS)
3307 system_process_attributes (Lisp_Object pid
)
3312 #endif /* !defined (WINDOWSNT) */