atomic-file.h

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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
 
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 */