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/*
* libdpkg - Debian packaging suite library routines
* atomic-file.h - atomic file helper functions
*
* Copyright © 2011-2014 Guillem Jover <guillem@debian.org>
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LIBDPKG_ATOMIC_FILE_H
#define LIBDPKG_ATOMIC_FILE_H
#include <stdio.h>
#include <dpkg/macros.h>
DPKG_BEGIN_DECLS
/**
* @defgroup atomic-file Atomic file operations
* @ingroup dpkg-internal
* @{
*/
enum atomic_file_flags {
ATOMIC_FILE_NORMAL = 0,
ATOMIC_FILE_BACKUP = DPKG_BIT(0),
ATOMIC_FILE_MKPATH = DPKG_BIT(1),
};
struct atomic_file {
enum atomic_file_flags flags;
char *name;
char *name_new;
FILE *fp;
};
struct atomic_file *
atomic_file_new(const char *filename, enum atomic_file_flags flags);
void atomic_file_open(struct atomic_file *file);
void atomic_file_sync(struct atomic_file *file);
void atomic_file_close(struct atomic_file *file);
void atomic_file_commit(struct atomic_file *file);
void atomic_file_remove(struct atomic_file *file);
void atomic_file_free(struct atomic_file *file);
/** @} */
DPKG_END_DECLS
#endif /* LIBDPKG_ATOMIC_FILE_H */
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