blob: 06af75f3bba6db7ac867d9098acdaad73d3cc8dd [file] [log] [blame]
/*
* Copyright (C) 2012 Alexander Block. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License v2 as published by the Free Software Foundation.
*
* This program 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef SEND_UTILS_H_
#define SEND_UTILS_H_
#if BTRFS_FLAT_INCLUDES
#include "ctree.h"
#include "rbtree.h"
#else
#include <btrfs/ctree.h>
#include <btrfs/rbtree.h>
#endif /* BTRFS_FLAT_INCLUDES */
#ifdef __cplusplus
extern "C" {
#endif
enum subvol_search_type {
subvol_search_by_root_id,
subvol_search_by_uuid,
subvol_search_by_received_uuid,
subvol_search_by_path,
};
struct subvol_info {
struct rb_node rb_root_id_node;
struct rb_node rb_local_node;
struct rb_node rb_received_node;
struct rb_node rb_path_node;
u64 root_id;
u8 uuid[BTRFS_UUID_SIZE];
u8 parent_uuid[BTRFS_UUID_SIZE];
u8 received_uuid[BTRFS_UUID_SIZE];
u64 ctransid;
u64 otransid;
u64 stransid;
u64 rtransid;
char *path;
};
struct subvol_uuid_search {
struct rb_root root_id_subvols;
struct rb_root local_subvols;
struct rb_root received_subvols;
struct rb_root path_subvols;
};
int subvol_uuid_search_init(int mnt_fd, struct subvol_uuid_search *s);
void subvol_uuid_search_finit(struct subvol_uuid_search *s);
struct subvol_info *subvol_uuid_search(struct subvol_uuid_search *s,
u64 root_id, const u8 *uuid, u64 transid,
const char *path,
enum subvol_search_type type);
void subvol_uuid_search_add(struct subvol_uuid_search *s,
struct subvol_info *si);
int btrfs_subvolid_resolve(int fd, char *path, size_t path_len, u64 subvol_id);
char *path_cat(const char *p1, const char *p2);
char *path_cat3(const char *p1, const char *p2, const char *p3);
#ifdef __cplusplus
}
#endif
#endif /* SEND_UTILS_H_ */