.\" $OpenBSD: pthread_cleanup_push.3,v 1.7 2013/06/05 03:44:50 tedu Exp $
.\"
.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
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.\" $FreeBSD: pthread_cleanup_push.3,v 1.5 1999/08/28 00:03:02 peter Exp $
.\"
.Dd $Mdocdate: June 5 2013 $
.Dt PTHREAD_CLEANUP_PUSH 3
.Os
.Sh NAME
.Nm pthread_cleanup_push
.Nd add a cleanup function for thread exit
.Sh SYNOPSIS
.In 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
.Fa cleanup_routine
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
.St -p1003.1-96 .