18687b45c8
Make it safe, and update man page with the useful information. Sponsored by: The FreeBSD Foundation MFC after: 1 week
70 lines
2.1 KiB
Groff
70 lines
2.1 KiB
Groff
.\" Copyright (c) 2011 David Chisnall
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd November 4, 2017
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.Dt QUICK_EXIT 3
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.Os
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.Sh NAME
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.Nm quick_exit
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.Nd exits a program quickly, running minimal cleanup
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In stdlib.h
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.Ft _Noreturn void
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.Fn quick_exit "int status"
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.Sh DESCRIPTION
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The
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.Fn quick_exit
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function exits the program quickly calling any cleanup functions registered
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with
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.Xr at_quick_exit 3
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but not any C++ destructors or cleanup code registered with
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.Xr atexit 3 .
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The
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.Xr stdio 3
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file buffers are not flushed.
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.Pp
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The function
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.Fn quick_exit
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is
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.Em async-signal safe
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when the functions registered with
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.Xr at_quick_exit 3
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are.
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.Sh RETURN VALUES
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The
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.Fn quick_exit
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function does not return.
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.Sh SEE ALSO
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.Xr at_quick_exit 3 ,
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.Xr exit 3
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.Sh STANDARDS
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The
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.Fn quick_exit
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function conforms to
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.St -isoC-2011 .
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