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[glibc.git] / stdlib / exit.h
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1 /* Copyright (C) 1991, 1996, 1997 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 not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #ifndef _EXIT_H
20 #define _EXIT_H 1
22 struct exit_function
24 enum { ef_free, ef_us, ef_on, ef_at } flavor; /* `ef_free' MUST be zero! */
25 union
27 void (*at) (void);
28 struct
30 void (*fn) (int status, void *arg);
31 void *arg;
32 } on;
33 } func;
35 struct exit_function_list
37 struct exit_function_list *next;
38 size_t idx;
39 struct exit_function fns[32];
41 extern struct exit_function_list *__exit_funcs;
43 extern struct exit_function *__new_exitfn (void);
45 #endif /* exit.h */