1.\" $NetBSD: at_quick_exit.3,v 1.2 2013/04/26 19:37:18 wiz Exp $ 2.\" Copyright (c) 2011 David Chisnall 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD: src/lib/libc/stdlib/at_quick_exit.3,v 1.5 2012/11/17 01:49:41 svnexp Exp $ 27.\" 28.Dd April 26, 2013 29.Dt AT_QUICK_EXIT 3 30.Os 31.Sh NAME 32.Nm at_quick_exit 33.Nd registers a cleanup function to run on quick exit 34.Sh LIBRARY 35.Lb libc 36.Sh SYNOPSIS 37.In stdlib.h 38.Ft int 39.Fn at_quick_exit "void (*func)(void)" 40.Sh DESCRIPTION 41The 42.Fn at_quick_exit 43function registers a cleanup function to be called when the program exits as a 44result of calling 45.Xr quick_exit 3 . 46The cleanup functions are called in the reverse order and will not be called if 47the program exits by calling 48.Xr exit 3 , 49.Xr _Exit 2 , 50or 51.Xr abort 3 . 52.Sh RETURN VALUES 53The 54.Fn at_quick_exit 55function returns the value 0 if successful and a non-zero value on failure. 56.Sh SEE ALSO 57.Xr exit 3 , 58.Xr quick_exit 3 59.Sh STANDARDS 60The 61.Fn at_quick_exit 62function conforms to 63.St -isoC-2011 . 64