stdlib/exit.h

   1 /* Copyright (C) 1991 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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.  */
  18
  19 #ifndef _EXIT_H
  20
  21 struct exit_function
  22   {
  23     enum { ef_free, ef_on, ef_at } flavor;      /* `ef_free' MUST be zero!  */
  24     union
  25       {
  26         void EXFUN((*at), (NOARGS));
  27         struct
  28           {
  29             void EXFUN((*fn), (int status, PTR arg));
  30             PTR arg;
  31           } on;
  32       } func;
  33   };
  34 struct exit_function_list
  35   {
  36     struct exit_function_list *next;
  37     size_t idx;
  38     struct exit_function fns[32];
  39   };
  40 extern struct exit_function_list *__exit_funcs;
  41
  42 extern struct exit_function *EXFUN(__new_exitfn, (NOARGS));
  43
  44 #endif  /* exit.h  */