93 lines
2.5 KiB
Groff
93 lines
2.5 KiB
Groff
.\" $NetBSD: pause.3,v 1.15 2003/08/07 16:42:55 agc Exp $
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.\"
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.\" Copyright (c) 1980, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)pause.3 8.1 (Berkeley) 6/4/93
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.\"
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.Dd June 4, 1993
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.Dt PAUSE 3
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.Os
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.Sh NAME
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.Nm pause
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.Nd stop until signal
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In unistd.h
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.Ft int
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.Fn pause void
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.Sh DESCRIPTION
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.Bf -symbolic
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Pause is made obsolete by
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.Xr sigsuspend 2 .
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.Ef
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.Pp
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The
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.Fn pause
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function
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forces a process to pause until
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a signal is received from either the
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.Xr kill 2
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function
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or an interval timer.
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(See
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.Xr setitimer 2 . )
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Upon termination of a signal handler started during a
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.Fn pause ,
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the
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.Fn pause
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call will return.
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.Sh RETURN VALUES
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Always returns \-1.
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.Sh ERRORS
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The
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.Fn pause
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function
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always returns:
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.Bl -tag -width Er
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.It Bq Er EINTR
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The call was interrupted.
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.El
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.Sh SEE ALSO
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.Xr kill 2 ,
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.Xr poll 2 ,
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.Xr select 2 ,
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.Xr setitimer 2 ,
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.Xr sigsuspend 2
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.Sh STANDARDS
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The
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.Fn pause
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function conforms to
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.St -p1003.1-90 .
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.Sh HISTORY
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A
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.Fn pause
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syscall
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appeared in
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.At v6 .
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