1.\" Copyright (c) 2011 David Chisnall 2.\" 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.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd December 7, 2011 26.Dt AT_QUICK_EXIT 3 27.Os 28.Sh NAME 29.Nm at_quick_exit 30.Nd registers a cleanup function to run on quick exit 31.Sh LIBRARY 32.Lb libc 33.Sh SYNOPSIS 34.In stdlib.h 35.Ft int 36.Fn at_quick_exit "void (*func)(void)" 37.Sh DESCRIPTION 38The 39.Fn at_quick_exit 40function registers a cleanup function to be called when the program exits as a 41result of calling 42.Xr quick_exit 3 . 43The cleanup functions are called in the reverse order and will not be called if 44the program exits by calling 45.Xr exit 3 , 46.Xr _Exit 3 , 47or 48.Xr abort 3 . 49.Sh RETURN VALUES 50The 51.Fn at_quick_exit 52function returns the value 0 if successful and a non-zero value on failure. 53.Sh SEE ALSO 54.Xr exit 3 , 55.Xr quick_exit 3 56.Sh STANDARDS 57The 58.Fn at_quick_exit 59function conforms to 60.St -isoC-2011 . 61