2003-04-16 17:34:34 +04:00
|
|
|
.\" $NetBSD: sigrelse.3,v 1.2 2003/04/16 13:34:39 wiz Exp $
|
2003-01-16 02:55:41 +03:00
|
|
|
.\"
|
|
|
|
|
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" This code is derived from software contributed to The NetBSD Foundation
|
|
|
|
|
.\" by Klaus Klein.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
|
.\" are met:
|
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
|
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
|
|
|
.\" must display the following acknowledgement:
|
|
|
|
|
.\" This product includes software developed by the NetBSD
|
|
|
|
|
.\" Foundation, Inc. and its contributors.
|
|
|
|
|
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
|
|
|
.\" contributors may be used to endorse or promote products derived
|
|
|
|
|
.\" from this software without specific prior written permission.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
|
|
|
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
|
|
|
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
|
|
|
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
|
|
|
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
|
|
|
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
|
|
|
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
|
|
|
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
|
|
|
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
|
|
|
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
|
.\" POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
|
.\"
|
|
|
|
|
.Dd January 16, 2003
|
|
|
|
|
.Dt SIGRELSE 3
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm sigrelse
|
|
|
|
|
.Nd manipulate current signal mask
|
|
|
|
|
.Sh LIBRARY
|
|
|
|
|
.Lb libc
|
|
|
|
|
.Sh SYNOPSIS
|
2003-04-16 17:34:34 +04:00
|
|
|
.In signal.h
|
2003-01-16 02:55:41 +03:00
|
|
|
.Ft int
|
|
|
|
|
.Fn sigrelse "int sig"
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
.Bf -symbolic
|
|
|
|
|
This interface is made obsolete by
|
|
|
|
|
.Xr sigprocmask 2 .
|
|
|
|
|
.Ef
|
|
|
|
|
.Pp
|
|
|
|
|
The
|
|
|
|
|
.Fn sigrelse
|
|
|
|
|
function removes the signal
|
|
|
|
|
.Fa sig
|
|
|
|
|
from the calling process' signal mask.
|
|
|
|
|
.Sh RETURN VALUES
|
|
|
|
|
If successful, the
|
|
|
|
|
.Fn sigrelse
|
|
|
|
|
function returns 0.
|
|
|
|
|
Otherwise \-1 is returned and
|
|
|
|
|
.Va errno
|
|
|
|
|
is set to indicate the error.
|
|
|
|
|
.Sh ERRORS
|
|
|
|
|
The
|
|
|
|
|
.Fn sigrelse
|
|
|
|
|
function will fail if:
|
|
|
|
|
.Bl -tag -width Er
|
|
|
|
|
.It Bq Er EINVAL
|
|
|
|
|
The argument
|
|
|
|
|
.Fa sig
|
|
|
|
|
is not a valid signal number.
|
|
|
|
|
.El
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr sigprocmask 2 ,
|
|
|
|
|
.Xr sighold 3
|
|
|
|
|
.Sh STANDARDS
|
|
|
|
|
The
|
|
|
|
|
.Fn sigrelse
|
|
|
|
|
function conforms to
|
|
|
|
|
.St -p1003.1-2001 .
|
