1.\" $NetBSD: pause.3,v 1.13 2002/02/07 07:00:16 ross Exp $ 2.\" 3.\" Copyright (c) 1980, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" @(#)pause.3 8.1 (Berkeley) 6/4/93 35.\" 36.Dd June 4, 1993 37.Dt PAUSE 3 38.Os 39.Sh NAME 40.Nm pause 41.Nd stop until signal 42.Sh LIBRARY 43.Lb libc 44.Sh SYNOPSIS 45.Fd #include \*[Lt]unistd.h\*[Gt] 46.Ft int 47.Fn pause void 48.Sh DESCRIPTION 49.Bf -symbolic 50Pause is made obsolete by 51.Xr sigsuspend 2 . 52.Ef 53.Pp 54The 55.Fn pause 56function 57forces a process to pause until 58a signal is received from either the 59.Xr kill 2 60function 61or an interval timer. 62(See 63.Xr setitimer 2 . ) 64Upon termination of a signal handler started during a 65.Fn pause , 66the 67.Fn pause 68call will return. 69.Sh RETURN VALUES 70Always returns \-1. 71.Sh ERRORS 72The 73.Fn pause 74function 75always returns: 76.Bl -tag -width Er 77.It Bq Er EINTR 78The call was interrupted. 79.El 80.Sh SEE ALSO 81.Xr kill 2 , 82.Xr poll 2 , 83.Xr select 2 , 84.Xr setitimer 2 , 85.Xr sigsuspend 2 86.Sh STANDARDS 87The 88.Fn pause 89function conforms to 90.St -p1003.1-90 . 91.Sh HISTORY 92A 93.Fn pause 94syscall 95appeared in 96.At v6 . 97