1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)pause.3 8.1 (Berkeley) 6/4/93 33.\" $FreeBSD: src/lib/libc/gen/pause.3,v 1.3.2.5 2001/12/14 18:33:51 ru Exp $ 34.\" $DragonFly: src/lib/libc/gen/pause.3,v 1.2 2003/06/17 04:26:42 dillon Exp $ 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.In unistd.h 46.Ft int 47.Fn pause void 48.Sh DESCRIPTION 49.Sy Pause is made obsolete by 50.Xr sigsuspend 2 . 51.Pp 52The 53.Fn pause 54function 55forces a process to pause until 56a signal is received from either the 57.Xr kill 2 58function 59or an interval timer. 60(See 61.Xr setitimer 2 . ) 62Upon termination of a signal handler started during a 63.Fn pause , 64the 65.Fn pause 66call will return. 67.Sh RETURN VALUES 68Always returns \-1. 69.Sh ERRORS 70The 71.Fn pause 72function 73always returns: 74.Bl -tag -width Er 75.It Bq Er EINTR 76The call was interrupted. 77.El 78.Sh SEE ALSO 79.Xr kill 2 , 80.Xr select 2 , 81.Xr sigsuspend 2 82.Sh HISTORY 83A 84.Fn pause 85syscall 86appeared in 87.At v6 . 88