1 /* Copyright (C) 1991 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA. */
24 /* Register FUNC to be executed by `exit'. */
26 DEFUN(atexit, (func), void EXFUN((*func), (NOARGS)))
28 struct exit_function *new = __new_exitfn();
39 static struct exit_function_list fnlist = { NULL, 0, };
40 struct exit_function_list *__exit_funcs = &fnlist;
42 struct exit_function *
43 DEFUN_VOID(__new_exitfn)
45 register struct exit_function_list *l;
47 for (l = __exit_funcs; l != NULL; l = l->next)
50 for (i = 0; i < l->idx; ++i)
51 if (l->fns[i].flavor == ef_free)
53 if (l->idx < sizeof(l->fns) / sizeof(l->fns[0]))
54 return &l->fns[l->idx++];
57 l = (struct exit_function_list *) malloc(sizeof(struct exit_function_list));
60 l->next = __exit_funcs;