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 modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 1, or (at your option)
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
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with the GNU C Library; see the file COPYING. If not, write to
16 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
23 /* Register FUNC to be executed by `exit'. */
25 DEFUN(atexit, (func), void EXFUN((*func), (NOARGS)))
27 struct exit_function *new = __new_exitfn();
38 static struct exit_function_list fnlist = { NULL, 0, };
39 struct exit_function_list *__exit_funcs = &fnlist;
41 struct exit_function *
42 DEFUN_VOID(__new_exitfn)
44 register struct exit_function_list *l;
46 for (l = __exit_funcs; l != NULL; l = l->next)
49 for (i = 0; i < l->idx; ++i)
50 if (l->fns[i].flavor == ef_free)
52 if (l->idx < sizeof(l->fns) / sizeof(l->fns[0]))
53 return &l->fns[l->idx++];
56 l = (struct exit_function_list *) malloc(sizeof(struct exit_function_list));
59 l->next = __exit_funcs;