diff options
| author | Ingo Schwarze <schwarze@cvs.openbsd.org> | 2011-04-26 23:04:24 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@cvs.openbsd.org> | 2011-04-26 23:04:24 +0000 |
| commit | 723f37c08b6a672ccf72cfe6de243be2e6cba620 (patch) | |
| tree | 18f8f476ff357e7853ebca0e4c9dc6f1982e0d59 /lib | |
| parent | 051ca5db44e93f5727c37f6e9897dcaf5656df1e (diff) | |
spring cleanup:
* shorten and clarify some explanations
* update the POSIX reference, this conforms to -2008 as well
* use .In and .Rv where possible
ok tedu@, feedback and ok jmc@
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/sys/sigprocmask.2 | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/lib/libc/sys/sigprocmask.2 b/lib/libc/sys/sigprocmask.2 index 0c81159440c..4b125cf89d5 100644 --- a/lib/libc/sys/sigprocmask.2 +++ b/lib/libc/sys/sigprocmask.2 @@ -1,4 +1,4 @@ -.\" $OpenBSD: sigprocmask.2,v 1.8 2007/05/31 19:19:34 jmc Exp $ +.\" $OpenBSD: sigprocmask.2,v 1.9 2011/04/26 23:04:23 schwarze Exp $ .\" $NetBSD: sigprocmask.2,v 1.6 1995/02/27 12:37:33 cgd Exp $ .\" .\" Copyright (c) 1983, 1991, 1993 @@ -30,14 +30,14 @@ .\" .\" @(#)sigprocmask.2 8.1 (Berkeley) 6/4/93 .\" -.Dd $Mdocdate: May 31 2007 $ +.Dd $Mdocdate: April 26 2011 $ .Dt SIGPROCMASK 2 .Os .Sh NAME .Nm sigprocmask .Nd manipulate current signal mask .Sh SYNOPSIS -.Fd #include <signal.h> +.In signal.h .Ft int .Fn sigprocmask "int how" "const sigset_t *set" "sigset_t *oset" .Sh DESCRIPTION @@ -52,14 +52,9 @@ If is not null, the action of .Fn sigprocmask depends on the value of the parameter -.Fa how . -The signal mask is changed as a function of the specified -.Fa set -and the current mask. -The function is specified by -.Fa how -using one of the following values from -.Aq Pa sys/signal.h : +.Fa how , +which can be one of the following constants defined in +.In sys/signal.h : .Bl -tag -width SIG_UNBLOCK .It Dv SIG_BLOCK The new mask is the union of the current mask and the specified @@ -82,7 +77,7 @@ When is null, the value of .Ar how -is insignificant and the mask remains unset +is insignificant and the mask remains unchanged, providing a way to examine the signal mask without modification. .Pp The system @@ -92,10 +87,7 @@ or .Dv SIGSTOP to be blocked. .Sh RETURN VALUES -A 0 value indicated that the call succeeded. -A \-1 return value indicates an error occurred and -.Va errno -is set to indicated the reason. +.Rv -std .Sh ERRORS The .Fn sigprocmask @@ -115,4 +107,4 @@ has a value other than those listed here. The .Fn sigprocmask function call is expected to conform to -.St -p1003.1-88 . +.St -p1003.1-2008 . |