/*
 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.  
 * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
 *
 * This file is part of LVM2.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU General Public License v.2.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _LVM_FILE_H
#define _LVM_FILE_H

/*
 * Create a temporary filename, and opens a descriptor to the file.
 */
int create_temp_name(const char *dir, char *buffer, size_t len, int *fd);

/*
 * NFS-safe rename of a temporary file to a common name, designed
 * to avoid race conditions and not overwrite the destination if
 * it exists.
 */
int lvm_rename(const char *old, const char *new);

/*
 * Return 1 if path exists else return 0
 */
int path_exists(const char *path);
int dir_exists(const char *path);

/*
 * Return 1 if dir is empty
 */
int is_empty_dir(const char *dir);

/*
 * Create directory (recursively) if necessary.  Return 1
 * if directory was successfully created (or already exists), else 0.
 */
int create_dir(const char *dir);

/* Sync directory changes */
void sync_dir(const char *file);

/* fcntl locking wrappers */
int fcntl_lock_file(const char *file, short lock_type, int warn_if_read_only);
void fcntl_unlock_file(int lockfd);

#endif