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67 Commits

Author SHA1 Message Date
jilles
178dd060a8 Update some signal man pages for multithreading. 2013-09-06 09:08:40 +00:00
jilles
a1d0d12367 sigaction(2): Document various non-POSIX functions as async-signal safe. 2013-06-08 13:45:43 +00:00
jilles
a9aa217d94 sigaction(2): *at system calls are async-signal safe. 2013-05-31 21:31:38 +00:00
jilles
1d33a1f2f5 sigaction(2): Extend description of async-signal safe functions: 
* Improve description when unsafe functions are unsafe.
* Add various safe functions from POSIX.1-2008 and Austin Group issue #692.
 2013-05-31 21:25:51 +00:00
jilles
e4c096aeb4 sigaction(2),sigwait(2),sigwaitinfo(2): Remove [EFAULT] error condition. 
Passing an invalid pointer results in undefined behaviour.

The wrappers in libthr access some of the data pointed to by the arguments
in userland, so that an invalid pointer will cause a signal and not an
[EFAULT] error return.

Furthermore, if the [EFAULT] error occurs when the kernel is writing, it is
not a proper error in the sense that the call still commits (changing the
signal disposition or accepting the signal).

MFC after:	1 week
 2012-09-27 17:48:04 +00:00
jilles
37abb66e2f Update xrefs from 4.3BSD to modern signal functions in various man pages. 
sigvec(2) references have been updated to sigaction(2), sigsetmask(2) and
sigblock(2) to sigprocmask(2), sigpause(2) to sigsuspend(2).

Some legacy man pages still refer to them, that is OK.
 2010-05-06 22:49:54 +00:00
kib
5df7b59b8b Revert r206649. 
Simplify the presented declaration of struct sigaction, noting the
caveat in the text. Real layout of the structure and exposed
implementation namespace only obfuscates the usage.

Submitted by:	bde
MFC after:	3 days
 2010-04-18 18:23:11 +00:00
kib
0531c74881 Still reference struct __sigaction with clarification when this form 
of argument declaration is needed.

Discussed with:	bde
MFC after:	3 days
 2010-04-15 08:32:50 +00:00
kib
d1b7d24e6f Align the declaration for sa_sigaction with POSIX. 
MFC after:	3 days
 2010-04-13 08:56:03 +00:00
imp
cd1f140ae4 Per Regents of the University of Calfornia letter, remove advertising 
clause.

# If I've done so improperly on a file, please let me know.
 2007-01-09 00:28:16 +00:00
davidxu
b4c9d04a7a Add cross references to siginfo.3. 2005-12-13 03:05:58 +00:00
ru
ed72feddcb Sort sections. 2005-01-20 09:17:07 +00:00
ru
57ce50860e Eliminate double whitespace. 2004-07-03 22:30:10 +00:00
ru
01548ace15 Mechanically kill hard sentence breaks. 2004-07-02 23:52:20 +00:00
yar
913f695456 Use ".In" to mark up C include file names. 2004-06-07 21:52:20 +00:00
yar
7c97f69840 Each sentence should begin on a new line. 2004-06-07 21:48:02 +00:00
yar
62c876af4f Extend and improve the mdoc(7) markup of this page. 
Reviewed by:	ru
 2004-06-07 21:43:14 +00:00
yar
68060b2236 Finally document the option to avoid zombie creation 
through ignoring SIGCHLD.
 2004-06-07 11:01:39 +00:00
ru
1c23ef339b mdoc(7): Use the new feature of the .In macro. 2003-09-08 19:57:22 +00:00
charnier
c0b518390e The .Fn function 
The ... 2 system call
 2003-03-24 16:07:19 +00:00
schweikh
fec6546e12 english(4) police. 2002-12-27 12:15:40 +00:00
ru
51fe7c1a88 mdoc(7) police: "The .Fa argument.". 2002-12-19 09:40:28 +00:00
ru
863465c1ab mdoc(7) police: Fixed abuses of the .Ar and .Em macros. 2002-12-18 13:33:04 +00:00
ru
a4b155d7a2 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
ru
3f859aa2ab mdoc(7) police: formatting nits. 
Approved by:	re
 2002-11-29 15:57:50 +00:00
bde
23a4371e51 Restored sigaction's name in its prototype. 2002-10-24 13:03:46 +00:00
alfred
4c4e655234 de-__P() 2002-10-09 23:22:11 +00:00
robert
947e91552f Correct the regressive part of my last commit to these files: 
use the .Fn macro instead of the .Fo ... .Fc combination to
format function prototypes.

Reminded by:	bde
 2002-10-04 11:31:00 +00:00
robert
4ab3b5c0e7 Add the 'restrict' type qualifier to the prototypes of `sigaction', 
`sigprocmask', `sigaltstack', and `sigwait' as well as to the
prototypes of the apparantly unimplemented functions `sigtimedwait'
and `sigwaitinfo'.  This complies with IEEE Std 1003.1-2001.
 2002-10-02 10:53:44 +00:00
archie
57de4fb945 Update to reflect reality. 
Reviewed by:	mini
MFC after:	3 days
 2002-09-11 21:40:02 +00:00
obrien
3b73ce2319 Remove __P() usage. 2002-03-21 22:49:10 +00:00
ru
623da62a5a mdoc(7) police: Use the new .In macro for #include statements. 2001-10-01 16:09:29 +00:00
ru
24c7b0a61d mdoc(7) police: s/BSD/.Bx/ where appropriate. 2001-08-14 10:01:54 +00:00
yar
27b7f2d4e7 Use the ``.Rv -std'' mdoc(7) macro in appropriate cases. 
Reviewed by:	ru
 2001-08-09 13:32:13 +00:00
brian
2f4c944b65 Mention the sa_handler and sa_sigaction #defines in the synopsis. 
Mark sa_sigaction consistently.

MFC after: 1 week
 2001-07-31 09:33:08 +00:00
sheldonh
1b8c225dc1 The delta introduced in the previous revision and attributed to the 
OpenBSD project had grammar problems and made no attempt to motivate
the practice of saving errno.  Replace it with something better.
 2001-07-24 11:15:13 +00:00
kris
2dedab32be Add a few more functions which are safe to call from signal handlers, 
and give a bit of advice.

Obtained from:	OpenBSD
MFC After:	1 week
 2001-07-24 08:24:50 +00:00
dd
a145482cf6 Remove whitespace at EOL. 2001-07-15 07:53:42 +00:00
peter
abdca07e35 List the SA_RESTART flag rather than burying it in another paragraph. 2001-02-14 21:46:07 +00:00
ru
8ba4187688 Prepare for mdoc(7)NG. 2000-12-29 14:08:20 +00:00
ru
bdc5340b39 mdoc(7) police: Er macro usage cleanup. 2000-11-22 16:02:00 +00:00
asmodai
bee55593c7 Replace old sigaction struct declaration with the new one as present 
in <sys/signal.h>.

This might be a shortterm fix until the manpage is updated towards
POSIX terminology.  And maybe not...

PR:		21542
Submitted by:	Ronald F. Guilmette <rfg@monkeys.com>
 2000-10-30 14:27:18 +00:00
ben
d6f0a22ddf Fix typo; sa_siginfo -> sa_sigaction 
PR:		19602
Submitted by:	Tony Finch <dot@dotat.at>
 2000-07-11 11:39:57 +00:00
alex
88a12ef1b1 The argument is not mcontext_t but ucontext_t. 
PR:		17836
Submitted by:	Tim Moore <moore@bricoworks.com>
 2000-06-26 15:00:25 +00:00
phantom
5401879e3b Introduce ".Lb" macro to libc manpages. 
More libraries manpages updates following.
 2000-04-21 09:42:15 +00:00
sheldonh
329223e6f2 Remove single-space hard sentence breaks. These degrade the quality 
of the typeset output, tend to make diffs harder to read and provide
bad examples for new-comers to mdoc.
 2000-03-02 09:14:21 +00:00
cracauer
eda32af3b4 Document SA_SIGINFO 
Reviewed by:	Sheldon Hearn <sheldonh@uunet.co.za>
 1999-12-15 16:51:35 +00:00
peter
76f0c923fe $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
brian
3164b70eb9 Mention which system interface functions are signal-safe. 
Suggested on -current by: Terry Lambert <tlambert@primenet.com>
 1998-09-09 20:44:51 +00:00
steve
260fa64a35 Fix a bunch of spelling errors. 
PR:		6856
Submitted by:	Josh Gilliam <josh@quick.net>
 1998-06-04 21:06:07 +00:00