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1.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
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.\" 3. Neither the name of the author nor the names of any co-contributors
13.\" may be used to endorse or promote products derived from this software
14.\" without specific prior written permission.
15.\"
16.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26.\" SUCH DAMAGE.
27.\"
28.\" $FreeBSD: src/lib/libc_r/man/pthread_cleanup_push.3,v 1.5.2.4 2001/08/17 15:42:51 ru Exp $
29.\"
30.Dd July 30, 1998
31.Dt PTHREAD_CLEANUP_PUSH 3
32.Os
33.Sh NAME
34.Nm pthread_cleanup_push
35.Nd add a cleanup function for thread exit
36.Sh SYNOPSIS
37.Fd #include <pthread.h>
38.Ft void
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39.Fo pthread_cleanup_push
40.Fa "void \*[lp]*routine\*[rp]\*[lp]void *\*[rp]"
41.Fa "void *arg"
42.Fc
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43.Sh DESCRIPTION
44The
45.Fn pthread_cleanup_push
46function adds
224c7076 47.Fa routine
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48to the top of the stack of cleanup handlers that
49get called when the current thread exits.
50.Pp
51When
224c7076 52.Fa routine
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53is called, it is passed
54.Fa arg
55as its only argument.
56.Sh RETURN VALUES
57.Fn pthread_cleanup_push
58does not return any value.
59.Sh ERRORS
60None
61.Sh SEE ALSO
62.Xr pthread_cleanup_pop 3 ,
63.Xr pthread_exit 3
64.Sh STANDARDS
65.Fn pthread_cleanup_push
66conforms to
67.St -p1003.1-96 .