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82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* Copyright (C) 1991, 1995, 1996, 1997, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "exit.h"
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#ifdef HAVE_GNU_LD
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#include "set-hooks.h"
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DEFINE_HOOK (__libc_atexit, (void))
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#endif
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/* Call all functions registered with `atexit' and `on_exit',
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in the reverse of the order in which they were registered
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perform stdio cleanup, and terminate program execution with STATUS. */
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void
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exit (int status)
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{
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/* We do it this way to handle recursive calls to exit () made by
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the functions registered with `atexit' and `on_exit'. We call
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everyone on the list and use the status value in the last
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exit (). */
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while (__exit_funcs != NULL)
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{
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struct exit_function_list *old;
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do
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{
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const struct exit_function *const f =
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&__exit_funcs->fns[--__exit_funcs->idx];
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switch (f->flavor)
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{
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case ef_free:
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case ef_us:
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break;
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case ef_on:
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(*f->func.on.fn) (status, f->func.on.arg);
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break;
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case ef_at:
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(*f->func.at) ();
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break;
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}
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}
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while (__exit_funcs->idx > 0);
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old = __exit_funcs;
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__exit_funcs = __exit_funcs->next;
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if (__exit_funcs != NULL)
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/* Don't free the last element in the chain, this is the statically
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allocate element. */
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free (old);
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}
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#ifdef HAVE_GNU_LD
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RUN_HOOK (__libc_atexit, ());
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#else
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{
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extern void _cleanup (void);
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_cleanup ();
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}
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#endif
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_exit (status);
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}
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