Commit Graph

58 Commits

Author SHA1 Message Date
John Baldwin
513bfc4fe2 Enhance the description of NOTE_TRACK:
- NOTE_TRACK has never triggered a NOTE_TRACK event from the parent pid.
  If NOTE_FORK is set, the listener will get a NOTE_FORK event from
  the parent pid, but not a separate NOTE_TRACK event.
- Explicitly note that the event added to monitor the child process
  preserves the fflags from the original event.
- Move the description of NOTE_TRACKERR under NOTE_TRACK as it is not a
  bit for the user to set (which is what this list pupports to be).
  Also, explicitly note that if an error occurs, the NOTE_CHILD event
  will not be generated.

MFC after:	1 week
2013-07-25 19:34:24 +00:00
Pawel Jakub Dawidek
ffce2a5b46 Note that SIGCHLD is special and if ignored, won't be recorded by the filter. 2013-01-21 22:07:34 +00:00
Eitan Adler
50d675f7a9 Remove trailing whitespace per mdoc lint warning
Disussed with:	gavin
No objection from:	doc
Approved by:	joel
MFC after:	3 days
2012-03-29 05:02:12 +00:00
Xin LI
601e0f587d Bump .Dd date for previous revision. 2012-02-15 18:34:57 +00:00
David Xu
03a67b59f8 Add notes about sigev_notify_kevent_flags introduced in revision 230857
which enables thread-friendly polling on same fd for AIO events.

Reviewed by:	delphij
2012-02-15 02:59:17 +00:00
Ruslan Ermilov
20df026c9a The NOTE_COPY should have been named NOTE_FFCOPY from the very
beginning.

Submitted by:	Igor Sysoev
2011-12-07 11:06:18 +00:00
Ulrich Spörlein
0d9deed52c mdoc: drop redundant .Pp and .LP calls
They have no effect when coming in pairs, or before .Bl/.Bd
2010-10-08 12:40:16 +00:00
Joel Dahl
f6ac23919b Fix typos and spelling mistakes. 2010-08-06 14:33:42 +00:00
Brooks Davis
a6fffd6cb0 The devices that supported EVFILT_NETDEV kqueue filters were removed in
r195175.  Remove all definitions, documentation, and usage.

fifo_misc.c:
	Remove all kqueue tests as fifo_io.c performs all those that
	would have remained.

Reviewed by:	rwatson
MFC after:	3 weeks
X-MFC note:	don't change vlan_link_state() function signature
2009-12-31 20:29:58 +00:00
Stacey Son
fdc1a1131e Add EV_RECEIPT to kevents.
EV_RECEIPT is useful to disambiguating error conditions when multiple
events structures are passed to kevent(2).  The error code is returned
in the data field and EV_ERROR is set.

Approved by:	rwatson (co-mentor)
2009-09-16 03:49:54 +00:00
Stacey Son
1a921c410a Add the EV_DISPATCH flag to kevents.
When the EV_DISPATCH flag is used the event source will be disabled
immediately after the delivery of an event.   This is similar to the
EV_ONESHOT flag but it doesn't delete the event.

Approved by:	rwatson (co-mentor)
2009-09-16 03:37:39 +00:00
Stacey Son
2c2e449905 Add EVFILT_USER to kevents.
Add user events support to kernel events which are not associated with any
kernel mechanism but are triggered by user level code.  This is useful for
adding user level events to an event handler that may also be monitoring
kernel events.

Approved by:	rwatson (co-mentor)
2009-09-16 03:30:12 +00:00
Ruslan Ermilov
6a6c4826bc We've been able to support EVFILT_VNODE filtering on non-UFS
file systems since 2005.

Submitted by:	Igor Sysoev
Approved by:	re (bmah)
MFC after:	3 days
2007-09-07 13:10:09 +00:00
John Baldwin
8cc7b0f93d Document that the data field for NOTE_EXIT holds the process exit status.
Submitted by:	Jared Yanovich -phirerunner at comcast.net-
MFC after:	2 weeks
2006-11-20 22:20:04 +00:00
Ruslan Ermilov
a73a3ab56b Markup fixes. 2006-09-17 21:27:35 +00:00
Ceri Davies
d2b2ccea4c Note that the system only allows a maximum of kern.kq_calloutmax timers.
PR:		docs/102353
Submitted by:	phk
MFC after:	1 week
2006-08-25 15:19:47 +00:00
Alan Cox
2ca32bcc02 Update .Dd value. 2005-06-04 19:44:09 +00:00
Alan Cox
bbe7bbdfee Eliminate the original method of requesting notification of aio_read(2) and
aio_write(2) completion through kevent(2).  This method does not work on
64-bit architectures.  It was deprecated in FreeBSD 4.4.  See revisions
1.87 and 1.70.2.7.

Change aio_physwakeup() to call psignal(9) directly rather than indirectly
through a timeout(9).  Discussed with: bde

Correct a bug introduced in revision 1.65 that could result in premature
delivery of a signal if an lio_listio(2) consisted of a mixture of
direct/raw and queued I/O operations.  Observed by: tegge

Eliminate a field from struct kaioinfo that is now unused.

Reviewed by: tegge
2005-06-04 19:16:33 +00:00
Ruslan Ermilov
1a0a934547 Mechanically kill hard sentence breaks. 2004-07-02 23:52:20 +00:00
Ruslan Ermilov
33992dc0ed Markup, grammar, and spelling fixes. 2004-06-30 20:09:10 +00:00
Mike Pritchard
3c6dd63b2c Spelling fixes. 2004-06-21 18:57:32 +00:00
Colin Percival
3b38d66be6 Add mention of the fact that timeouts are silently limited to 24 hours.
Observed by:	jmg
2004-04-20 21:07:43 +00:00
Christian Brueffer
bda1672356 Add information about the EVFILT_NETDEV filter
PR:		docs/56872 (based on)
Submitted by:	Suleiman Souhlal <refugee@vt.edu>
Reviewed by:	hmp, jmg
2003-11-11 16:41:27 +00:00
John-Mark Gurney
634862b329 document the fact that kqueue will immediately return and not timeout when
nevents is 0.

PR:		kern/45291
2003-10-20 02:29:16 +00:00
Ruslan Ermilov
fe08efe680 mdoc(7): Use the new feature of the .In macro. 2003-09-08 19:57:22 +00:00
John-Mark Gurney
95aab9cc49 add support for using kqueue to watch bpf sockets.
Submitted by:	Brian Buchanan of nCircle, Inc.
Tested on:	i386 and sparc64
2003-08-05 07:12:49 +00:00
Ruslan Ermilov
2efeeba554 mdoc(7) police: "The .Fa argument.". 2002-12-19 09:40:28 +00:00
Ruslan Ermilov
2faeeff4c9 mdoc(7) police: Tidy up the syscall language.
Stop calling system calls "function calls".

Use "The .Fn system call" a-la "The .Nm utility".

When referring to a non-BSD implementation in
the HISTORY section, call syscall a function,
to be safe.
2002-12-18 09:22:32 +00:00
Kelly Yancey
e0f640e82d Track the number of non-data chararacters stored in socket buffers so that
the data value returned by kevent()'s EVFILT_READ filter on non-TCP
sockets accurately reflects the amount of data that can be read from the
sockets by applications.

PR:		30634
Reviewed by:	-net, -arch
Sponsored by:	NTT Multimedia Communications Labs
MFC after:	2 weeks
2002-11-01 21:27:59 +00:00
Robert Watson
626251ea01 While an interface can be depreciated, we prefer deprecated.
Submitted by:	Wayne Morrison <tewok@tislabs.com>
2002-10-29 20:53:46 +00:00
Mark Peek
3aaa96958d Fix typo (SIGEV_EVENT -> SIGEV_KEVENT). 2002-07-02 21:05:08 +00:00
Ruslan Ermilov
32eef9aeb1 mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
Guido van Rooij
fea88e76d7 Typo: s/conatains/contains/
MFC after:	1 week
2001-09-12 17:57:31 +00:00
Ruslan Ermilov
936c7c034e mdoc(7) police: remove whitespace at EOL. 2001-08-08 10:28:18 +00:00
Jonathan Lemon
e725a1299a Document EVFILT_TIMER.
MFC after: 1 week
2001-07-19 18:35:19 +00:00
Dima Dorfman
7ebcc426ef Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
Dima Dorfman
0e35d76ec4 event.h -> sys/event.h
Submitted by:	David Hill <david@phobia.ms>
2001-06-27 19:55:57 +00:00
Dima Dorfman
a910f192bb Remove duplicate words. 2001-06-24 01:34:38 +00:00
Jonathan Lemon
add0681213 Fix small bogon.
Submitted by: Anton Berezin <tobez@tobez.org>
2001-06-11 18:15:31 +00:00
Jonathan Lemon
5d1c9c5606 Document various changes to kq:
- new EV_SET macro,
    - NOTE_LOWAT option for low water marks on read/write filters,
    - NOTE_REVOKE for filesystem unmounting (and revoke() calls)
    - improved API for EVFILT_AIO
2001-02-26 04:16:19 +00:00
Guido van Rooij
34bdee5b4b Add include <sys/time.h> because kevent uses struct timespec 2001-02-14 08:48:35 +00:00
Ruslan Ermilov
4263595653 Prepare for mdoc(7)NG. 2000-12-29 14:08:20 +00:00
Ruslan Ermilov
c23155a43a mdoc(7) police: Er macro usage cleanup. 2000-11-22 16:02:00 +00:00
Jonathan Lemon
ee85cf8bb2 Fix a logic reversal: the RFFDG flag must be unset in order to share
a file descriptor table.  (Thanks to Alan Cox)

Clarify the fact that the changelist and eventlist can be shared.
2000-11-21 22:40:59 +00:00
Jeroen Ruigrok van der Werven
02e1f97870 Clarify the time parameter of the kevent() system call.
Inspired by PR:		21708
Submitted by:		Ronald F. Guilmette <rfg@monkeys.com>
Reviewed by:		jlemon
2000-11-21 15:22:36 +00:00
Jonathan Lemon
b275c430a5 Document return value of ENOENT for nonexistent/invalid filter entries. 2000-08-07 16:47:35 +00:00
Sheldon Hearn
3c63f48c66 Clean up some nits, with the permission of the author:
* Grammar fixes.
  * Mark up rfork and vnode as cross-references.
  * Clarify the use of the RFFDG flag to rfork(2).
2000-07-24 18:03:53 +00:00
Jonathan Lemon
a8e65b915e Simplify kqueue API slightly.
Discussed on:	-arch
2000-07-18 19:31:52 +00:00
John-Mark Gurney
20ff215b1d remove sys/time.h by instruction from bde. 2000-07-06 22:18:44 +00:00
John-Mark Gurney
55b8fbfb5b change first release date to 4.1-R as 5.0-R won't be out for at least a
year (from jkh)..

Caught by:	Fx macro warning on 3.4-R
2000-06-26 21:23:57 +00:00