diff options
Diffstat (limited to 'btrfs-list.h')
| -rw-r--r-- | btrfs-list.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/btrfs-list.h b/btrfs-list.h new file mode 100644 index 00000000..13f44c3a --- /dev/null +++ b/btrfs-list.h @@ -0,0 +1,178 @@ +/* + * Copyright (C) 2012 FUJITSU LIMITED. 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 __BTRFS_LIST_H__ +#define __BTRFS_LIST_H__ + +#if BTRFS_FLAT_INCLUDES +#include "kerncompat.h" +#include "rbtree.h" +#include "ioctl.h" +#else +#include <btrfs/kerncompat.h> +#include <btrfs/rbtree.h> +#include <btrfs/ioctl.h> +#endif /* BTRFS_FLAT_INCLUDES */ + +#include <time.h> + +#define BTRFS_LIST_LAYOUT_DEFAULT 0 +#define BTRFS_LIST_LAYOUT_TABLE 1 +#define BTRFS_LIST_LAYOUT_RAW 2 + +/* + * one of these for each root we find. + */ +struct root_info { + struct rb_node rb_node; + struct rb_node sort_node; + + /* this root's id */ + u64 root_id; + + /* equal the offset of the root's key */ + u64 root_offset; + + /* flags of the root */ + u64 flags; + + /* the id of the root that references this one */ + u64 ref_tree; + + /* the dir id we're in from ref_tree */ + u64 dir_id; + + u64 top_id; + + /* generation when the root is created or last updated */ + u64 gen; + + /* creation generation of this root in sec*/ + u64 ogen; + + /* creation time of this root in sec*/ + time_t otime; + + u8 uuid[BTRFS_UUID_SIZE]; + u8 puuid[BTRFS_UUID_SIZE]; + u8 ruuid[BTRFS_UUID_SIZE]; + + /* path from the subvol we live in to this root, including the + * root's name. This is null until we do the extra lookup ioctl. + */ + char *path; + + /* the name of this root in the directory it lives in */ + char *name; + + char *full_path; + + int deleted; +}; + +typedef int (*btrfs_list_filter_func)(struct root_info *, u64); +typedef int (*btrfs_list_comp_func)(struct root_info *, struct root_info *, + int); + +struct btrfs_list_filter { + btrfs_list_filter_func filter_func; + u64 data; +}; + +struct btrfs_list_comparer { + btrfs_list_comp_func comp_func; + int is_descending; +}; + +struct btrfs_list_filter_set { + int total; + int nfilters; + int only_deleted; + struct btrfs_list_filter filters[0]; +}; + +struct btrfs_list_comparer_set { + int total; + int ncomps; + struct btrfs_list_comparer comps[0]; +}; + +enum btrfs_list_column_enum { + BTRFS_LIST_OBJECTID, + BTRFS_LIST_GENERATION, + BTRFS_LIST_OGENERATION, + BTRFS_LIST_PARENT, + BTRFS_LIST_TOP_LEVEL, + BTRFS_LIST_OTIME, + BTRFS_LIST_PUUID, + BTRFS_LIST_RUUID, + BTRFS_LIST_UUID, + BTRFS_LIST_PATH, + BTRFS_LIST_ALL, +}; + +enum btrfs_list_filter_enum { + BTRFS_LIST_FILTER_ROOTID, + BTRFS_LIST_FILTER_SNAPSHOT_ONLY, + BTRFS_LIST_FILTER_FLAGS, + BTRFS_LIST_FILTER_GEN, + BTRFS_LIST_FILTER_GEN_EQUAL = BTRFS_LIST_FILTER_GEN, + BTRFS_LIST_FILTER_GEN_LESS, + BTRFS_LIST_FILTER_GEN_MORE, + BTRFS_LIST_FILTER_CGEN, + BTRFS_LIST_FILTER_CGEN_EQUAL = BTRFS_LIST_FILTER_CGEN, + BTRFS_LIST_FILTER_CGEN_LESS, + BTRFS_LIST_FILTER_CGEN_MORE, + BTRFS_LIST_FILTER_TOPID_EQUAL, + BTRFS_LIST_FILTER_FULL_PATH, + BTRFS_LIST_FILTER_BY_PARENT, + BTRFS_LIST_FILTER_DELETED, + BTRFS_LIST_FILTER_MAX, +}; + +enum btrfs_list_comp_enum { + BTRFS_LIST_COMP_ROOTID, + BTRFS_LIST_COMP_OGEN, + BTRFS_LIST_COMP_GEN, + BTRFS_LIST_COMP_PATH, + BTRFS_LIST_COMP_MAX, +}; + +int btrfs_list_parse_sort_string(char *optarg, + struct btrfs_list_comparer_set **comps); +int btrfs_list_parse_filter_string(char *optarg, + struct btrfs_list_filter_set **filters, + enum btrfs_list_filter_enum type); +void btrfs_list_setup_print_column(enum btrfs_list_column_enum column); +struct btrfs_list_filter_set *btrfs_list_alloc_filter_set(void); +void btrfs_list_free_filter_set(struct btrfs_list_filter_set *filter_set); +int btrfs_list_setup_filter(struct btrfs_list_filter_set **filter_set, + enum btrfs_list_filter_enum filter, u64 data); +struct btrfs_list_comparer_set *btrfs_list_alloc_comparer_set(void); +void btrfs_list_free_comparer_set(struct btrfs_list_comparer_set *comp_set); + +int btrfs_list_subvols_print(int fd, struct btrfs_list_filter_set *filter_set, + struct btrfs_list_comparer_set *comp_set, + int is_tab_result, int full_path, char *raw_prefix); +int btrfs_list_find_updated_files(int fd, u64 root_id, u64 oldest_gen); +int btrfs_list_get_default_subvolume(int fd, u64 *default_id); +char *btrfs_list_path_for_root(int fd, u64 root); +int btrfs_list_get_path_rootid(int fd, u64 *treeid); +int btrfs_get_subvol(int fd, struct root_info *the_ri); + +#endif |