| NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | CONFORMING TO | SEE ALSO | COLOPHON | The Linux Programming Interface |
ON_EXIT(3) Linux Programmer's Manual ON_EXIT(3)
on_exit - register a function to be called at normal process termina-
tion
#include <stdlib.h>
int on_exit(void (*function)(int , void *), void *arg);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
on_exit(): _BSD_SOURCE || _SVID_SOURCE
The on_exit() function registers the given function to be called at
normal process termination, whether via exit(3) or via return from
the program's main(). The function is passed the status argument
given to the last call to exit(3) and the arg argument from
on_exit().
The same function may be registered multiple times: it is called once
for each registration.
When a child process is created via fork(2), it inherits copies of
its parent's registrations. Upon a successful call to one of the
exec(3) functions, all registrations are removed.
The on_exit() function returns the value 0 if successful; otherwise
it returns a nonzero value.
This function comes from SunOS 4, but is also present in libc4, libc5
and glibc. It no longer occurs in Solaris (SunOS 5). Avoid this
function, and use the standard atexit(3) instead.
_exit(2), atexit(3), exit(3)
This page is part of release 3.51 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2008-12-05 ON_EXIT(3)
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