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https://github.com/containers/fuse-overlayfs.git
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37d91db36e
let's start using __attribute__((cleanup)), it helps to simplify a lot of code, and hopefully avoid some bugs. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
/* fuse-overlayfs: Overlay Filesystem in Userspace
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Copyright (C) 2019 Red Hat Inc.
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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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*/
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#ifndef UTILS_H
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# define UTILS_H
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void
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cleanup_freep (void *p)
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{
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void **pp = (void **) p;
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free (*pp);
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}
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void
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cleanup_filep (FILE **f)
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{
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FILE *file = *f;
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if (file)
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(void) fclose (file);
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}
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void
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cleanup_closep (void *p)
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{
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int *pp = p;
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if (*pp >= 0)
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close (*pp);
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}
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void
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cleanup_dirp (DIR **p)
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{
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DIR *dir = *p;
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if (dir)
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closedir (dir);
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}
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# define cleanup_file __attribute__((cleanup (cleanup_filep)))
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# define cleanup_free __attribute__((cleanup (cleanup_freep)))
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# define cleanup_close __attribute__((cleanup (cleanup_closep)))
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# define cleanup_dir __attribute__((cleanup (cleanup_dirp)))
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#endif
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