.\" $OpenBSD: pthread_cleanup_push.3,v 1.4 1999/11/24 05:35:31 d Exp $
.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
.\" All rights reserved.
.\"
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.\" 3. Neither the name of the author nor the names of any co-contributors
.\"    may be used to endorse or promote products derived from this software
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.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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.\" $FreeBSD: pthread_cleanup_push.3,v 1.5 1999/08/28 00:03:02 peter Exp $
.\"
.Dd July 30, 1998
.Dt PTHREAD_CLEANUP_PUSH 3
.Os
.Sh NAME
.Nm pthread_cleanup_push
.Nd add a cleanup function for thread exit
.Sh SYNOPSIS
.Fd #include <pthread.h>
.Ft void
.Fn pthread_cleanup_push "void (*cleanup_routine)(void *)" "void *arg"
.Sh DESCRIPTION
The
.Fn pthread_cleanup_push
function adds
.Fa cleanup_routine
to the top of the stack of cleanup handlers that
get called when the current thread exits.
.Pp
When
.Fn pthread_cleanup_push
is called, it is passed
.Fa arg
as its only argument.
.Sh RETURN VALUES
.Fn pthread_cleanup_push
does not return any value.
.Sh ERRORS
None
.Sh SEE ALSO
.Xr pthread_cleanup_pop 3 ,
.Xr pthread_exit 3
.Sh STANDARDS
.Fn pthread_cleanup_push
conforms to ISO/IEC 9945-1 ANSI/IEEE
.Pq Dq Tn POSIX
Std 1003.1 Second Edition 1996-07-12.