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[thirdparty/bash.git] / unwind_prot.h
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1/* unwind_prot.h - Macros and functions for hacking unwind protection. */
2
3/* Copyright (C) 1993 Free Software Foundation, Inc.
4
5 This file is part of GNU Bash, the Bourne Again SHell.
6
7 Bash is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
11
12 Bash is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License along
18 with Bash; see the file COPYING. If not, write to the Free Software
bb70624e 19 Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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20
21#if !defined (_UNWIND_PROT_H)
22#define _UNWIND_PROT_H
23
24/* Run a function without interrupts. */
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25extern void begin_unwind_frame __P((char *));
26extern void discard_unwind_frame __P((char *));
27extern void run_unwind_frame __P((char *));
28extern void add_unwind_protect (); /* Not portable to arbitrary C99 hosts. */
29extern void remove_unwind_protect __P((void));
30extern void run_unwind_protects __P((void));
31extern void clear_unwind_protect_list __P((int));
7117c2d2 32extern void uwp_init __P((void));
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33
34/* Define for people who like their code to look a certain way. */
35#define end_unwind_frame()
36
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37/* How to protect a variable. */
38#define unwind_protect_var(X) unwind_protect_mem ((char *)&(X), sizeof (X))
39extern void unwind_protect_mem __P((char *, int));
726f6388 40
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41/* Backwards compatibility */
42#define unwind_protect_int unwind_protect_var
43#define unwind_protect_short unwind_protect_var
44#define unwind_protect_string unwind_protect_var
45#define unwind_protect_pointer unwind_protect_var
46#define unwind_protect_jmp_buf unwind_protect_var
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47
48#endif /* _UNWIND_PROT_H */