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70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
/* Cleanups.
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Copyright (C) 1986-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef CLEANUPS_H
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#define CLEANUPS_H
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/* Outside of cleanups.c, this is an opaque type. */
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struct cleanup;
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/* NOTE: cagney/2000-03-04: This typedef is strictly for the
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make_cleanup function declarations below. Do not use this typedef
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as a cast when passing functions into the make_cleanup() code.
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Instead either use a bounce function or add a wrapper function.
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Calling a f(char*) function with f(void*) is non-portable. */
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typedef void (make_cleanup_ftype) (void *);
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/* Function type for the dtor in make_cleanup_dtor. */
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typedef void (make_cleanup_dtor_ftype) (void *);
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/* WARNING: The result of the "make cleanup" routines is not the intuitive
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choice of being a handle on the just-created cleanup. Instead it is an
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opaque handle of the cleanup mechanism and represents all cleanups created
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from that point onwards.
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The result is guaranteed to be non-NULL though. */
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extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
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extern struct cleanup *make_cleanup_dtor (make_cleanup_ftype *, void *,
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make_cleanup_dtor_ftype *);
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extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
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/* A special value to pass to do_cleanups and do_final_cleanups
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to tell them to do all cleanups. */
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extern struct cleanup *all_cleanups (void);
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extern void do_cleanups (struct cleanup *);
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extern void do_final_cleanups (struct cleanup *);
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extern void discard_cleanups (struct cleanup *);
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extern void discard_final_cleanups (struct cleanup *);
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extern struct cleanup *save_cleanups (void);
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extern struct cleanup *save_final_cleanups (void);
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extern void restore_cleanups (struct cleanup *);
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extern void restore_final_cleanups (struct cleanup *);
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/* A no-op cleanup.
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This is useful when you want to establish a known reference point
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to pass to do_cleanups. */
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extern void null_cleanup (void *);
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#endif /* CLEANUPS_H */
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