X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=utils.h;h=a82d46f6d7cc6aa02e9ed502064b94514f54e67c;hb=ee76a212a8027ce876dd2c17e1d10b99bdeb9877;hp=562c7be33a2758edfd3d6d302682ffd7d8bbc1d3;hpb=3638e1080051804220db05cdd24ccc50bd8e46c0;p=platform%2Fupstream%2Fbtrfs-progs.git diff --git a/utils.h b/utils.h index 562c7be..a82d46f 100644 --- a/utils.h +++ b/utils.h @@ -16,15 +16,19 @@ * Boston, MA 021110-1307, USA. */ -#ifndef __UTILS__ -#define __UTILS__ +#ifndef __BTRFS_UTILS_H__ +#define __BTRFS_UTILS_H__ #include #include "ctree.h" #include - -#define BTRFS_MKFS_SYSTEM_GROUP_SIZE (4 * 1024 * 1024) -#define BTRFS_MKFS_SMALL_VOLUME_SIZE (1024 * 1024 * 1024) +#include +#include "common-defs.h" +#include "internal.h" +#include "btrfs-list.h" +#include "sizes.h" +#include "messages.h" +#include "ioctl.h" #define BTRFS_SCAN_MOUNTED (1ULL << 0) #define BTRFS_SCAN_LBLKID (1ULL << 1) @@ -35,31 +39,55 @@ #define BTRFS_ARG_MNTPOINT 1 #define BTRFS_ARG_UUID 2 #define BTRFS_ARG_BLKDEV 3 +#define BTRFS_ARG_REG 4 -#define BTRFS_UUID_UNPARSED_SIZE 37 - -#define ARGV0_BUF_SIZE 64 - -int check_argc_exact(int nargs, int expected); -int check_argc_min(int nargs, int expected); -int check_argc_max(int nargs, int expected); - -void fixup_argv0(char **argv, const char *token); -void set_argv0(char **argv); +/* + * Output modes of size + */ +#define UNITS_RESERVED (0) +#define UNITS_BYTES (1) +#define UNITS_KBYTES (2) +#define UNITS_MBYTES (3) +#define UNITS_GBYTES (4) +#define UNITS_TBYTES (5) +#define UNITS_RAW (1U << UNITS_MODE_SHIFT) +#define UNITS_BINARY (2U << UNITS_MODE_SHIFT) +#define UNITS_DECIMAL (3U << UNITS_MODE_SHIFT) +/* Interpret the u64 value as s64 */ +#define UNITS_NEGATIVE (4U << UNITS_MODE_SHIFT) +#define UNITS_MODE_MASK ((1U << UNITS_MODE_SHIFT) - 1) +#define UNITS_MODE_SHIFT (8) +#define UNITS_HUMAN_BINARY (UNITS_BINARY) +#define UNITS_HUMAN_DECIMAL (UNITS_DECIMAL) +#define UNITS_HUMAN (UNITS_HUMAN_BINARY) +#define UNITS_DEFAULT (UNITS_HUMAN) + +void units_set_mode(unsigned *units, unsigned mode); +void units_set_base(unsigned *units, unsigned base); + +#define PREP_DEVICE_ZERO_END (1U << 0) +#define PREP_DEVICE_DISCARD (1U << 1) +#define PREP_DEVICE_VERBOSE (1U << 2) + +#define SEEN_FSID_HASH_SIZE 256 +struct seen_fsid { + u8 fsid[BTRFS_FSID_SIZE]; + struct seen_fsid *next; + DIR *dirstream; + int fd; +}; -int make_btrfs(int fd, const char *device, const char *label, - char *fs_uuid, u64 blocks[6], u64 num_bytes, u32 nodesize, - u32 leafsize, u32 sectorsize, u32 stripesize, u64 features); int btrfs_make_root_dir(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid); -int btrfs_prepare_device(int fd, char *file, int zero_end, u64 *block_count_ret, - u64 max_block_count, int *mixed, int discard); +int btrfs_prepare_device(int fd, const char *file, u64 *block_count_ret, + u64 max_block_count, unsigned opflags); int btrfs_add_to_fsid(struct btrfs_trans_handle *trans, - struct btrfs_root *root, int fd, char *path, + struct btrfs_root *root, int fd, const char *path, u64 block_count, u32 io_width, u32 io_align, u32 sectorsize); int btrfs_scan_for_fsid(int run_ioctls); -void btrfs_register_one_device(char *fname); +int btrfs_register_one_device(const char *fname); +int btrfs_register_all_devices(void); char *canonicalize_dm_name(const char *ptname); char *canonicalize_path(const char *path); int check_mounted(const char *devicename); @@ -68,71 +96,98 @@ int check_mounted_where(int fd, const char *file, char *where, int size, int btrfs_device_already_in_root(struct btrfs_root *root, int fd, int super_offset); -int pretty_size_snprintf(u64 size, char *str, size_t str_bytes); -#define pretty_size(size) \ - ({ \ - static __thread char _str[24]; \ - (void)pretty_size_snprintf((size), _str, sizeof(_str)); \ - _str; \ - }) +int pretty_size_snprintf(u64 size, char *str, size_t str_bytes, unsigned unit_mode); +#define pretty_size(size) pretty_size_mode(size, UNITS_DEFAULT) +const char *pretty_size_mode(u64 size, unsigned mode); -int get_mountpt(char *dev, char *mntpt, size_t size); -int btrfs_scan_block_devices(int run_ioctl); u64 parse_size(char *s); +u64 parse_qgroupid(const char *p); u64 arg_strtou64(const char *str); +int arg_copy_path(char *dest, const char *src, int destlen); int open_file_or_dir(const char *fname, DIR **dirstream); int open_file_or_dir3(const char *fname, DIR **dirstream, int open_flags); void close_file_or_dir(int fd, DIR *dirstream); -int get_fs_info(char *path, struct btrfs_ioctl_fs_info_args *fi_args, +int get_fs_info(const char *path, struct btrfs_ioctl_fs_info_args *fi_args, struct btrfs_ioctl_dev_info_args **di_ret); +int get_fsid(const char *path, u8 *fsid, int silent); + +int is_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[]); +int add_seen_fsid(u8 *fsid, struct seen_fsid *seen_fsid_hash[], + int fd, DIR *dirstream); +void free_seen_fsid(struct seen_fsid *seen_fsid_hash[]); + int get_label(const char *btrfs_dev, char *label); int set_label(const char *btrfs_dev, const char *label); -char *__strncpy__null(char *dest, const char *src, size_t n); +char *__strncpy_null(char *dest, const char *src, size_t n); int is_block_device(const char *file); int is_mount_point(const char *file); -int open_path_or_dev_mnt(const char *path, DIR **dirstream); +int check_arg_type(const char *input); +int open_path_or_dev_mnt(const char *path, DIR **dirstream, int verbose); +int btrfs_open(const char *path, DIR **dirstream, int verbose, int dir_only); +int btrfs_open_dir(const char *path, DIR **dirstream, int verbose); +int btrfs_open_file_or_dir(const char *path, DIR **dirstream, int verbose); u64 btrfs_device_size(int fd, struct stat *st); /* Helper to always get proper size of the destination string */ -#define strncpy_null(dest, src) __strncpy__null(dest, src, sizeof(dest)) -int test_dev_for_mkfs(char *file, int force_overwrite, char *estr); +#define strncpy_null(dest, src) __strncpy_null(dest, src, sizeof(dest)) int get_label_mounted(const char *mount_path, char *labelp); -int test_num_disk_vs_raid(u64 metadata_profile, u64 data_profile, - u64 dev_cnt, int mixed, char *estr); -int is_vol_small(char *file); -int csum_tree_block(struct btrfs_root *root, struct extent_buffer *buf, - int verify); -int ask_user(char *question); -int lookup_ino_rootid(int fd, u64 *rootid); -int btrfs_scan_lblkid(int update_kernel); +int get_label_unmounted(const char *dev, char *label); +int group_profile_max_safe_loss(u64 flags); +int csum_tree_block(struct btrfs_fs_info *root, struct extent_buffer *buf, + int verify); +int ask_user(const char *question); +int lookup_path_rootid(int fd, u64 *rootid); +int btrfs_scan_devices(void); int get_btrfs_mount(const char *dev, char *mp, size_t mp_size); int find_mount_root(const char *path, char **mount_root); int get_device_info(int fd, u64 devid, struct btrfs_ioctl_dev_info_args *di_args); int test_uuid_unique(char *fs_uuid); +u64 disk_size(const char *path); +u64 get_partition_size(const char *dev); -int test_minimum_size(const char *file, u32 leafsize); int test_issubvolname(const char *name); +int test_issubvolume(const char *path); int test_isdir(const char *path); +const char *subvol_strip_mountpoint(const char *mnt, const char *full_path); +int get_subvol_info(const char *fullpath, struct root_info *get_ri); +int get_subvol_info_by_rootid(const char *mnt, struct root_info *get_ri, + u64 rootid_arg); +int get_subvol_info_by_uuid(const char *mnt, struct root_info *get_ri, + u8 *uuid_arg); +int find_next_key(struct btrfs_path *path, struct btrfs_key *key); +const char* btrfs_group_type_str(u64 flag); +const char* btrfs_group_profile_str(u64 flag); + +int count_digits(u64 num); +u64 div_factor(u64 num, int factor); + +int btrfs_tree_search2_ioctl_supported(int fd); + +unsigned int get_unit_mode_from_arg(int *argc, char *argv[], int df_mode); +int string_is_numerical(const char *str); +int prefixcmp(const char *str, const char *prefix); + +unsigned long total_memory(void); + /* - * Btrfs minimum size calculation is complicated, it should include at least: - * 1. system group size - * 2. minimum global block reserve - * 3. metadata used at mkfs - * 4. space reservation to create uuid for first mount. - * Also, raid factor should also be taken into consideration. - * To avoid the overkill calculation, (system group + global block rsv) * 2 - * for *EACH* device should be good enough. + * Global program state, configurable by command line and available to + * functions without extra context passing. */ -static inline u64 btrfs_min_global_blk_rsv_size(u32 leafsize) -{ - return leafsize << 10; -} -static inline u64 btrfs_min_dev_size(u32 leafsize) -{ - return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE + - btrfs_min_global_blk_rsv_size(leafsize)); -} +struct btrfs_config { +}; +extern struct btrfs_config bconf; + +void btrfs_config_init(void); + +/* Pseudo random number generator wrappers */ +int rand_int(void); +u8 rand_u8(void); +u16 rand_u16(void); +u32 rand_u32(void); +u64 rand_u64(void); +unsigned int rand_range(unsigned int upper); +void init_rand_seed(u64 seed); #endif