xref: /netbsd/share/man/man9/doshutdownhooks.9 (revision bf9ec67e)
1.\" $NetBSD: doshutdownhooks.9,v 1.7 2001/09/04 02:51:15 wiz Exp $
2.\"
3.\" Copyright (c) 1994 Christopher G. Demetriou
4.\" 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 for the
17.\"          NetBSD Project.  See http://www.netbsd.org/ for
18.\"          information about NetBSD.
19.\" 4. The name of the author may not be used to endorse or promote products
20.\"    derived from this software without specific prior written permission.
21.\"
22.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32.\"
33.\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
34.\"
35.Dd November 13, 1995
36.Dt DOSHUTDOWNHOOKS 9
37.Os
38.Sh NAME
39.Nm doshutdownhooks
40.Nd run all shutdown hooks
41.Sh SYNOPSIS
42.Ft void
43.Fn doshutdownhooks "void"
44.Sh DESCRIPTION
45The
46.Fn doshutdownhooks
47function invokes all shutdown hooks established using the
48.Xr shutdownhook_establish 9
49function.  Shutdown hooks are called in reverse order, i.e.
50the shutdown hook established last will be called first.
51.Pp
52This function is called from
53.Fn boot
54with interrupts turned off.
55It is called immediately before the system is halted or rebooted,
56after file systems have been unmounted, after the clock has been updated,
57and after a system dump has been done (if necessary).
58.Sh SEE ALSO
59.\" .Xr boot 9 ,
60.Xr shutdownhook_establish 9
61