48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
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/* unwind_prot.h - Macros and functions for hacking unwind protection. */
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/* Copyright (C) 1993 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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Bash is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with Bash; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#if !defined (_UNWIND_PROT_H)
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#define _UNWIND_PROT_H
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/* Run a function without interrupts. */
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void
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begin_unwind_frame (), discard_unwind_frame (),
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run_unwind_frame (), add_unwind_protect (), remove_unwind_protect (),
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run_unwind_protects ();
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/* Define for people who like their code to look a certain way. */
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#define end_unwind_frame()
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/* How to protect an integer. */
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#define unwind_protect_int(X) unwind_protect_var (&(X), (char *)(X), sizeof (int))
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/* How to protect a pointer to a string. */
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#define unwind_protect_string(X) \
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unwind_protect_var ((int *)&(X), (X), sizeof (char *))
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/* How to protect any old pointer. */
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#define unwind_protect_pointer(X) unwind_protect_string (X)
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/* How to protect the contents of a jmp_buf. */
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#define unwind_protect_jmp_buf(X) \
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unwind_protect_var ((int *)(X), (char *)(X), sizeof (jmp_buf))
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#endif /* _UNWIND_PROT_H */
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