1.\" $OpenBSD: delay.9,v 1.4 2007/09/14 16:16:08 mk Exp $ 2.\" 3.\" Copyright (c) 2006 David Gwynne <dlg@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: September 14 2007 $ 18.Dt DELAY 9 19.Os 20.Sh NAME 21.Nm delay 22.Nd busy wait for an interval 23.Sh SYNOPSIS 24.In sys/param.h 25.Ft void 26.Fn delay "int delay" 27.Sh DESCRIPTION 28.Fn delay 29is called in the kernel to busy wait for a period of time. 30The 31.Fa delay 32argument specifies the period of time to wait for, in microseconds. 33.Sh SEE ALSO 34.Xr timeout 9 , 35.Xr tsleep 9 36