lfs.c File Reference

#include "littlefs/lfs.h"
#include "littlefs/lfs_util.h"

Include dependency graph for lfs.c:

Classes
struct	lfs_mattr
struct	lfs_diskoff
struct	lfs_fcrc
struct	lfs_dir_traverse
struct	lfs_dir_find_match
struct	lfs_commit
struct	lfs_dir_commit_commit
struct	lfs_tortoise_t
struct	lfs_fs_parent_match

Macros
#define	LFS_BLOCK_NULL   ((lfs_block_t)-1)
#define	LFS_BLOCK_INLINE   ((lfs_block_t)-2)
#define	LFS_MKTAG(type, id, size)
#define	LFS_MKTAG_IF(cond, type, id, size)
#define	LFS_MKTAG_IF_ELSE(cond, type1, id1, size1, type2, id2, size2)
#define	LFS_MKATTRS(...)
#define	LFS_DIR_TRAVERSE_DEPTH   3
#define	LFS_LOCK(cfg)
	Public API wrappers ///.
#define	LFS_UNLOCK(cfg)

Typedefs
typedef uint32_t	lfs_tag_t
typedef int32_t	lfs_stag_t

Enumerations
enum	{ LFS_OK_RELOCATED = 1 , LFS_OK_DROPPED = 2 , LFS_OK_ORPHANED = 3 }
enum	{ LFS_CMP_EQ = 0 , LFS_CMP_LT = 1 , LFS_CMP_GT = 2 }

Functions
static void	lfs_cache_drop (lfs_t *lfs, lfs_cache_t *rcache)
	Caching block device operations ///.
static void	lfs_cache_zero (lfs_t *lfs, lfs_cache_t *pcache)
static int	lfs_bd_read (lfs_t *lfs, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size)
static int	lfs_bd_cmp (lfs_t *lfs, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size)
static int	lfs_bd_crc (lfs_t *lfs, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, lfs_size_t size, uint32_t *crc)
static int	lfs_bd_flush (lfs_t *lfs, lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate)
static int	lfs_bd_sync (lfs_t *lfs, lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate)
static int	lfs_bd_prog (lfs_t *lfs, lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size)
static int	lfs_bd_erase (lfs_t *lfs, lfs_block_t block)
static lfs_size_t	lfs_path_namelen (const char *path)
	Small type-level utilities ///.
static bool	lfs_path_islast (const char *path)
static bool	lfs_path_isdir (const char *path)
static void	lfs_pair_swap (lfs_block_t pair[2])
static bool	lfs_pair_isnull (const lfs_block_t pair[2])
static int	lfs_pair_cmp (const lfs_block_t paira[2], const lfs_block_t pairb[2])
static bool	lfs_pair_issync (const lfs_block_t paira[2], const lfs_block_t pairb[2])
static void	lfs_pair_fromle32 (lfs_block_t pair[2])
static void	lfs_pair_tole32 (lfs_block_t pair[2])
static bool	lfs_tag_isvalid (lfs_tag_t tag)
static bool	lfs_tag_isdelete (lfs_tag_t tag)
static uint16_t	lfs_tag_type1 (lfs_tag_t tag)
static uint16_t	lfs_tag_type2 (lfs_tag_t tag)
static uint16_t	lfs_tag_type3 (lfs_tag_t tag)
static uint8_t	lfs_tag_chunk (lfs_tag_t tag)
static int8_t	lfs_tag_splice (lfs_tag_t tag)
static uint16_t	lfs_tag_id (lfs_tag_t tag)
static lfs_size_t	lfs_tag_size (lfs_tag_t tag)
static lfs_size_t	lfs_tag_dsize (lfs_tag_t tag)
static void	lfs_gstate_xor (lfs_gstate_t *a, const lfs_gstate_t *b)
static bool	lfs_gstate_iszero (const lfs_gstate_t *a)
static bool	lfs_gstate_hasorphans (const lfs_gstate_t *a)
static uint8_t	lfs_gstate_getorphans (const lfs_gstate_t *a)
static bool	lfs_gstate_hasmove (const lfs_gstate_t *a)
static bool	lfs_gstate_needssuperblock (const lfs_gstate_t *a)
static bool	lfs_gstate_hasmovehere (const lfs_gstate_t *a, const lfs_block_t *pair)
static void	lfs_gstate_fromle32 (lfs_gstate_t *a)
static void	lfs_gstate_tole32 (lfs_gstate_t *a)
static void	lfs_fcrc_fromle32 (struct lfs_fcrc *fcrc)
static void	lfs_fcrc_tole32 (struct lfs_fcrc *fcrc)
static void	lfs_ctz_fromle32 (struct lfs_ctz *ctz)
static void	lfs_ctz_tole32 (struct lfs_ctz *ctz)
static void	lfs_superblock_fromle32 (lfs_superblock_t *superblock)
static void	lfs_superblock_tole32 (lfs_superblock_t *superblock)
static bool	lfs_mlist_isopen (struct lfs_mlist *head, struct lfs_mlist *node)
static void	lfs_mlist_remove (lfs_t *lfs, struct lfs_mlist *mlist)
static void	lfs_mlist_append (lfs_t *lfs, struct lfs_mlist *mlist)
static uint32_t	lfs_fs_disk_version (lfs_t *lfs)
static uint16_t	lfs_fs_disk_version_major (lfs_t *lfs)
static uint16_t	lfs_fs_disk_version_minor (lfs_t *lfs)
static int	lfs_dir_commit (lfs_t *lfs, lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount)
	Internal operations predeclared here ///.
static int	lfs_dir_compact (lfs_t *lfs, lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount, lfs_mdir_t *source, uint16_t begin, uint16_t end)
static lfs_ssize_t	lfs_file_flushedwrite (lfs_t *lfs, lfs_file_t *file, const void *buffer, lfs_size_t size)
static lfs_ssize_t	lfs_file_write_ (lfs_t *lfs, lfs_file_t *file, const void *buffer, lfs_size_t size)
static int	lfs_file_sync_ (lfs_t *lfs, lfs_file_t *file)
static int	lfs_file_outline (lfs_t *lfs, lfs_file_t *file)
static int	lfs_file_flush (lfs_t *lfs, lfs_file_t *file)
static int	lfs_fs_deorphan (lfs_t *lfs, bool powerloss)
static int	lfs_fs_preporphans (lfs_t *lfs, int8_t orphans)
static void	lfs_fs_prepmove (lfs_t *lfs, uint16_t id, const lfs_block_t pair[2])
static int	lfs_fs_pred (lfs_t *lfs, const lfs_block_t dir[2], lfs_mdir_t *pdir)
static lfs_stag_t	lfs_fs_parent (lfs_t *lfs, const lfs_block_t dir[2], lfs_mdir_t *parent)
static int	lfs_fs_forceconsistency (lfs_t *lfs)
static void	lfs_fs_prepsuperblock (lfs_t *lfs, bool needssuperblock)
static int	lfs_dir_rewind_ (lfs_t *lfs, lfs_dir_t *dir)
static lfs_ssize_t	lfs_file_flushedread (lfs_t *lfs, lfs_file_t *file, void *buffer, lfs_size_t size)
static lfs_ssize_t	lfs_file_read_ (lfs_t *lfs, lfs_file_t *file, void *buffer, lfs_size_t size)
static int	lfs_file_close_ (lfs_t *lfs, lfs_file_t *file)
static lfs_soff_t	lfs_file_size_ (lfs_t *lfs, lfs_file_t *file)
static lfs_ssize_t	lfs_fs_size_ (lfs_t *lfs)
static int	lfs_fs_traverse_ (lfs_t *lfs, int(*cb)(void *data, lfs_block_t block), void *data, bool includeorphans)
static int	lfs_deinit (lfs_t *lfs)
static int	lfs_unmount_ (lfs_t *lfs)
static void	lfs_alloc_ckpoint (lfs_t *lfs)
	Block allocator ///.
static void	lfs_alloc_drop (lfs_t *lfs)
static int	lfs_alloc_lookahead (void *p, lfs_block_t block)
static int	lfs_alloc_scan (lfs_t *lfs)
static int	lfs_alloc (lfs_t *lfs, lfs_block_t *block)
static lfs_stag_t	lfs_dir_getslice (lfs_t *lfs, const lfs_mdir_t *dir, lfs_tag_t gmask, lfs_tag_t gtag, lfs_off_t goff, void *gbuffer, lfs_size_t gsize)
	Metadata pair and directory operations ///.
static lfs_stag_t	lfs_dir_get (lfs_t *lfs, const lfs_mdir_t *dir, lfs_tag_t gmask, lfs_tag_t gtag, void *buffer)
static int	lfs_dir_getread (lfs_t *lfs, const lfs_mdir_t *dir, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint, lfs_tag_t gmask, lfs_tag_t gtag, lfs_off_t off, void *buffer, lfs_size_t size)
static int	lfs_dir_traverse_filter (void *p, lfs_tag_t tag, const void *buffer)
static int	lfs_dir_traverse (lfs_t *lfs, const lfs_mdir_t *dir, lfs_off_t off, lfs_tag_t ptag, const struct lfs_mattr *attrs, int attrcount, lfs_tag_t tmask, lfs_tag_t ttag, uint16_t begin, uint16_t end, int16_t diff, int(*cb)(void *data, lfs_tag_t tag, const void *buffer), void *data)
static lfs_stag_t	lfs_dir_fetchmatch (lfs_t *lfs, lfs_mdir_t *dir, const lfs_block_t pair[2], lfs_tag_t fmask, lfs_tag_t ftag, uint16_t *id, int(*cb)(void *data, lfs_tag_t tag, const void *buffer), void *data)
static int	lfs_dir_fetch (lfs_t *lfs, lfs_mdir_t *dir, const lfs_block_t pair[2])
static int	lfs_dir_getgstate (lfs_t *lfs, const lfs_mdir_t *dir, lfs_gstate_t *gstate)
static int	lfs_dir_getinfo (lfs_t *lfs, lfs_mdir_t *dir, uint16_t id, struct lfs_info *info)
static int	lfs_dir_find_match (void *data, lfs_tag_t tag, const void *buffer)
static lfs_stag_t	lfs_dir_find (lfs_t *lfs, lfs_mdir_t *dir, const char **path, uint16_t *id)
static int	lfs_dir_commitprog (lfs_t *lfs, struct lfs_commit *commit, const void *buffer, lfs_size_t size)
static int	lfs_dir_commitattr (lfs_t *lfs, struct lfs_commit *commit, lfs_tag_t tag, const void *buffer)
static int	lfs_dir_commitcrc (lfs_t *lfs, struct lfs_commit *commit)
static int	lfs_dir_alloc (lfs_t *lfs, lfs_mdir_t *dir)
static int	lfs_dir_drop (lfs_t *lfs, lfs_mdir_t *dir, lfs_mdir_t *tail)
static int	lfs_dir_split (lfs_t *lfs, lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount, lfs_mdir_t *source, uint16_t split, uint16_t end)
static int	lfs_dir_commit_size (void *p, lfs_tag_t tag, const void *buffer)
static int	lfs_dir_commit_commit (void *p, lfs_tag_t tag, const void *buffer)
static bool	lfs_dir_needsrelocation (lfs_t *lfs, lfs_mdir_t *dir)
static int	lfs_dir_splittingcompact (lfs_t *lfs, lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount, lfs_mdir_t *source, uint16_t begin, uint16_t end)
static int	lfs_dir_relocatingcommit (lfs_t *lfs, lfs_mdir_t *dir, const lfs_block_t pair[2], const struct lfs_mattr *attrs, int attrcount, lfs_mdir_t *pdir)
static int	lfs_dir_orphaningcommit (lfs_t *lfs, lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount)
static int	lfs_mkdir_ (lfs_t *lfs, const char *path)
	Top level directory operations ///.
static int	lfs_dir_open_ (lfs_t *lfs, lfs_dir_t *dir, const char *path)
static int	lfs_dir_close_ (lfs_t *lfs, lfs_dir_t *dir)
static int	lfs_dir_read_ (lfs_t *lfs, lfs_dir_t *dir, struct lfs_info *info)
static int	lfs_dir_seek_ (lfs_t *lfs, lfs_dir_t *dir, lfs_off_t off)
static lfs_soff_t	lfs_dir_tell_ (lfs_t *lfs, lfs_dir_t *dir)
static int	lfs_ctz_index (lfs_t *lfs, lfs_off_t *off)
	File index list operations ///.
static int	lfs_ctz_find (lfs_t *lfs, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_block_t head, lfs_size_t size, lfs_size_t pos, lfs_block_t *block, lfs_off_t *off)
static int	lfs_ctz_extend (lfs_t *lfs, lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_block_t head, lfs_size_t size, lfs_block_t *block, lfs_off_t *off)
static int	lfs_ctz_traverse (lfs_t *lfs, const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_block_t head, lfs_size_t size, int(*cb)(void *, lfs_block_t), void *data)
static int	lfs_file_opencfg_ (lfs_t *lfs, lfs_file_t *file, const char *path, int flags, const struct lfs_file_config *cfg)
	Top level file operations ///.
static int	lfs_file_open_ (lfs_t *lfs, lfs_file_t *file, const char *path, int flags)
static int	lfs_file_relocate (lfs_t *lfs, lfs_file_t *file)
static lfs_soff_t	lfs_file_seek_ (lfs_t *lfs, lfs_file_t *file, lfs_soff_t off, int whence)
static int	lfs_file_truncate_ (lfs_t *lfs, lfs_file_t *file, lfs_off_t size)
static lfs_soff_t	lfs_file_tell_ (lfs_t *lfs, lfs_file_t *file)
static int	lfs_file_rewind_ (lfs_t *lfs, lfs_file_t *file)
static int	lfs_stat_ (lfs_t *lfs, const char *path, struct lfs_info *info)
	General fs operations ///.
static int	lfs_remove_ (lfs_t *lfs, const char *path)
static int	lfs_rename_ (lfs_t *lfs, const char *oldpath, const char *newpath)
static lfs_ssize_t	lfs_getattr_ (lfs_t *lfs, const char *path, uint8_t type, void *buffer, lfs_size_t size)
static int	lfs_commitattr (lfs_t *lfs, const char *path, uint8_t type, const void *buffer, lfs_size_t size)
static int	lfs_setattr_ (lfs_t *lfs, const char *path, uint8_t type, const void *buffer, lfs_size_t size)
static int	lfs_removeattr_ (lfs_t *lfs, const char *path, uint8_t type)
static int	lfs_init (lfs_t *lfs, const struct lfs_config *cfg)
	Filesystem operations ///.
static int	lfs_format_ (lfs_t *lfs, const struct lfs_config *cfg)
static int	lfs_tortoise_detectcycles (const lfs_mdir_t *dir, struct lfs_tortoise_t *tortoise)
static int	lfs_mount_ (lfs_t *lfs, const struct lfs_config *cfg)
static int	lfs_fs_stat_ (lfs_t *lfs, struct lfs_fsinfo *fsinfo)
	Filesystem filesystem operations ///.
static int	lfs_fs_parent_match (void *data, lfs_tag_t tag, const void *buffer)
static int	lfs_fs_desuperblock (lfs_t *lfs)
static int	lfs_fs_demove (lfs_t *lfs)
static int	lfs_fs_mkconsistent_ (lfs_t *lfs)
static int	lfs_fs_size_count (void *p, lfs_block_t block)
static int	lfs_fs_gc_ (lfs_t *lfs)
static int	lfs_fs_grow_ (lfs_t *lfs, lfs_size_t block_count)
int	lfs_format (lfs_t *lfs, const struct lfs_config *cfg)
	Filesystem functions ///.
int	lfs_mount (lfs_t *lfs, const struct lfs_config *cfg)
int	lfs_unmount (lfs_t *lfs)
int	lfs_remove (lfs_t *lfs, const char *path)
	General operations ///.
int	lfs_rename (lfs_t *lfs, const char *oldpath, const char *newpath)
int	lfs_stat (lfs_t *lfs, const char *path, struct lfs_info *info)
lfs_ssize_t	lfs_getattr (lfs_t *lfs, const char *path, uint8_t type, void *buffer, lfs_size_t size)
int	lfs_setattr (lfs_t *lfs, const char *path, uint8_t type, const void *buffer, lfs_size_t size)
int	lfs_removeattr (lfs_t *lfs, const char *path, uint8_t type)
int	lfs_file_open (lfs_t *lfs, lfs_file_t *file, const char *path, int flags)
int	lfs_file_opencfg (lfs_t *lfs, lfs_file_t *file, const char *path, int flags, const struct lfs_file_config *cfg)
	File operations ///.
int	lfs_file_close (lfs_t *lfs, lfs_file_t *file)
int	lfs_file_sync (lfs_t *lfs, lfs_file_t *file)
lfs_ssize_t	lfs_file_read (lfs_t *lfs, lfs_file_t *file, void *buffer, lfs_size_t size)
lfs_ssize_t	lfs_file_write (lfs_t *lfs, lfs_file_t *file, const void *buffer, lfs_size_t size)
lfs_soff_t	lfs_file_seek (lfs_t *lfs, lfs_file_t *file, lfs_soff_t off, int whence)
int	lfs_file_truncate (lfs_t *lfs, lfs_file_t *file, lfs_off_t size)
lfs_soff_t	lfs_file_tell (lfs_t *lfs, lfs_file_t *file)
int	lfs_file_rewind (lfs_t *lfs, lfs_file_t *file)
lfs_soff_t	lfs_file_size (lfs_t *lfs, lfs_file_t *file)
int	lfs_mkdir (lfs_t *lfs, const char *path)
	Directory operations ///.
int	lfs_dir_open (lfs_t *lfs, lfs_dir_t *dir, const char *path)
int	lfs_dir_close (lfs_t *lfs, lfs_dir_t *dir)
int	lfs_dir_read (lfs_t *lfs, lfs_dir_t *dir, struct lfs_info *info)
int	lfs_dir_seek (lfs_t *lfs, lfs_dir_t *dir, lfs_off_t off)
lfs_soff_t	lfs_dir_tell (lfs_t *lfs, lfs_dir_t *dir)
int	lfs_dir_rewind (lfs_t *lfs, lfs_dir_t *dir)
int	lfs_fs_stat (lfs_t *lfs, struct lfs_fsinfo *fsinfo)
	Filesystem-level filesystem operations.
lfs_ssize_t	lfs_fs_size (lfs_t *lfs)
int	lfs_fs_traverse (lfs_t *lfs, int(*cb)(void *, lfs_block_t), void *data)
int	lfs_fs_mkconsistent (lfs_t *lfs)
int	lfs_fs_gc (lfs_t *lfs)
int	lfs_fs_grow (lfs_t *lfs, lfs_size_t block_count)

Macro Definition Documentation

LFS_BLOCK_INLINE

#define LFS_BLOCK_INLINE   ((lfs_block_t)-2)

LFS_BLOCK_NULL

#define LFS_BLOCK_NULL   ((lfs_block_t)-1)

LFS_DIR_TRAVERSE_DEPTH

#define LFS_DIR_TRAVERSE_DEPTH   3

LFS_LOCK

#define LFS_LOCK

(

cfg

)

Value:

((void)cfg, 0)

Public API wrappers ///.

LFS_MKATTRS

#define LFS_MKATTRS

(

...

)

Value:

    (struct lfs_mattr[]){__VA_ARGS__}, \
    sizeof((struct lfs_mattr[]){__VA_ARGS__}) / sizeof(struct lfs_mattr)

LFS_MKTAG

#define LFS_MKTAG	(		type,
			id,
			size )

Value:

    (((lfs_tag_t)(type) << 20) | ((lfs_tag_t)(id) << 10) | (lfs_tag_t)(size))

LFS_MKTAG_IF

#define LFS_MKTAG_IF	(		cond,
			type,
			id,
			size )

Value:

    ((cond) ? LFS_MKTAG(type, id, size) : LFS_MKTAG(LFS_FROM_NOOP, 0, 0))

LFS_MKTAG_IF_ELSE

#define LFS_MKTAG_IF_ELSE	(		cond,
			type1,
			id1,
			size1,
			type2,
			id2,
			size2 )

Value:

    ((cond) ? LFS_MKTAG(type1, id1, size1) : LFS_MKTAG(type2, id2, size2))

LFS_UNLOCK

#define LFS_UNLOCK

(

cfg

)

Value:

((void)cfg)

Typedef Documentation

lfs_stag_t

typedef int32_t lfs_stag_t

lfs_tag_t

typedef uint32_t lfs_tag_t

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
LFS_OK_RELOCATED
LFS_OK_DROPPED
LFS_OK_ORPHANED

anonymous enum

anonymous enum

Enumerator
LFS_CMP_EQ
LFS_CMP_LT
LFS_CMP_GT

Function Documentation

lfs_alloc()

static int lfs_alloc ( lfs_t * lfs, lfs_block_t * block )

static

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lfs_alloc_ckpoint()

static void lfs_alloc_ckpoint ( lfs_t * lfs )

static

Block allocator ///.

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lfs_alloc_drop()

static void lfs_alloc_drop ( lfs_t * lfs )

static

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lfs_alloc_lookahead()

static int lfs_alloc_lookahead ( void * p, lfs_block_t block )

static

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lfs_alloc_scan()

static int lfs_alloc_scan ( lfs_t * lfs )

static

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lfs_bd_cmp()

static int lfs_bd_cmp ( lfs_t * lfs, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, const void * buffer, lfs_size_t size )

static

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lfs_bd_crc()

static int lfs_bd_crc ( lfs_t * lfs, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, lfs_size_t size, uint32_t * crc )

static

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lfs_bd_erase()

static int lfs_bd_erase ( lfs_t * lfs, lfs_block_t block )

static

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lfs_bd_flush()

static int lfs_bd_flush ( lfs_t * lfs, lfs_cache_t * pcache, lfs_cache_t * rcache, bool validate )

static

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lfs_bd_prog()

static int lfs_bd_prog ( lfs_t * lfs, lfs_cache_t * pcache, lfs_cache_t * rcache, bool validate, lfs_block_t block, lfs_off_t off, const void * buffer, lfs_size_t size )

static

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lfs_bd_read()

static int lfs_bd_read ( lfs_t * lfs, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_size_t hint, lfs_block_t block, lfs_off_t off, void * buffer, lfs_size_t size )

static

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lfs_bd_sync()

static int lfs_bd_sync ( lfs_t * lfs, lfs_cache_t * pcache, lfs_cache_t * rcache, bool validate )

static

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lfs_cache_drop()

static void lfs_cache_drop ( lfs_t * lfs, lfs_cache_t * rcache )

inlinestatic

Caching block device operations ///.

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lfs_cache_zero()

static void lfs_cache_zero ( lfs_t * lfs, lfs_cache_t * pcache )

inlinestatic

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lfs_commitattr()

static int lfs_commitattr ( lfs_t * lfs, const char * path, uint8_t type, const void * buffer, lfs_size_t size )

static

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lfs_ctz_extend()

static int lfs_ctz_extend ( lfs_t * lfs, lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_block_t head, lfs_size_t size, lfs_block_t * block, lfs_off_t * off )

static

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lfs_ctz_find()

static int lfs_ctz_find ( lfs_t * lfs, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_block_t head, lfs_size_t size, lfs_size_t pos, lfs_block_t * block, lfs_off_t * off )

static

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lfs_ctz_fromle32()

static void lfs_ctz_fromle32 ( struct lfs_ctz * ctz )

static

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lfs_ctz_index()

static int lfs_ctz_index ( lfs_t * lfs, lfs_off_t * off )

static

File index list operations ///.

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lfs_ctz_tole32()

static void lfs_ctz_tole32 ( struct lfs_ctz * ctz )

static

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lfs_ctz_traverse()

static int lfs_ctz_traverse ( lfs_t * lfs, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_block_t head, lfs_size_t size, int(* cb )(void *, lfs_block_t), void * data )

static

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lfs_deinit()

static int lfs_deinit ( lfs_t * lfs )

static

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lfs_dir_alloc()

static int lfs_dir_alloc ( lfs_t * lfs, lfs_mdir_t * dir )

static

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lfs_dir_close()

int lfs_dir_close	(	lfs_t *	lfs,
		lfs_dir_t *	dir )

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lfs_dir_close_()

static int lfs_dir_close_ ( lfs_t * lfs, lfs_dir_t * dir )

static

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lfs_dir_commit()

static int lfs_dir_commit ( lfs_t * lfs, lfs_mdir_t * dir, const struct lfs_mattr * attrs, int attrcount )

static

Internal operations predeclared here ///.

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lfs_dir_commit_commit()

static int lfs_dir_commit_commit ( void * p, lfs_tag_t tag, const void * buffer )

static

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lfs_dir_commit_size()

static int lfs_dir_commit_size ( void * p, lfs_tag_t tag, const void * buffer )

static

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lfs_dir_commitattr()

static int lfs_dir_commitattr ( lfs_t * lfs, struct lfs_commit * commit, lfs_tag_t tag, const void * buffer )

static

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lfs_dir_commitcrc()

static int lfs_dir_commitcrc ( lfs_t * lfs, struct lfs_commit * commit )

static

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lfs_dir_commitprog()

static int lfs_dir_commitprog ( lfs_t * lfs, struct lfs_commit * commit, const void * buffer, lfs_size_t size )

static

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lfs_dir_compact()

static int lfs_dir_compact ( lfs_t * lfs, lfs_mdir_t * dir, const struct lfs_mattr * attrs, int attrcount, lfs_mdir_t * source, uint16_t begin, uint16_t end )

static

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lfs_dir_drop()

static int lfs_dir_drop ( lfs_t * lfs, lfs_mdir_t * dir, lfs_mdir_t * tail )

static

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lfs_dir_fetch()

static int lfs_dir_fetch ( lfs_t * lfs, lfs_mdir_t * dir, const lfs_block_t pair[2] )

static

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lfs_dir_fetchmatch()

static lfs_stag_t lfs_dir_fetchmatch ( lfs_t * lfs, lfs_mdir_t * dir, const lfs_block_t pair[2], lfs_tag_t fmask, lfs_tag_t ftag, uint16_t * id, int(* cb )(void *data, lfs_tag_t tag, const void *buffer), void * data )

static

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lfs_dir_find()

static lfs_stag_t lfs_dir_find ( lfs_t * lfs, lfs_mdir_t * dir, const char ** path, uint16_t * id )

static

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lfs_dir_find_match()

static int lfs_dir_find_match ( void * data, lfs_tag_t tag, const void * buffer )

static

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lfs_dir_get()

static lfs_stag_t lfs_dir_get ( lfs_t * lfs, const lfs_mdir_t * dir, lfs_tag_t gmask, lfs_tag_t gtag, void * buffer )

static

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lfs_dir_getgstate()

static int lfs_dir_getgstate ( lfs_t * lfs, const lfs_mdir_t * dir, lfs_gstate_t * gstate )

static

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lfs_dir_getinfo()

static int lfs_dir_getinfo ( lfs_t * lfs, lfs_mdir_t * dir, uint16_t id, struct lfs_info * info )

static

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lfs_dir_getread()

static int lfs_dir_getread ( lfs_t * lfs, const lfs_mdir_t * dir, const lfs_cache_t * pcache, lfs_cache_t * rcache, lfs_size_t hint, lfs_tag_t gmask, lfs_tag_t gtag, lfs_off_t off, void * buffer, lfs_size_t size )

static

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lfs_dir_getslice()

static lfs_stag_t lfs_dir_getslice ( lfs_t * lfs, const lfs_mdir_t * dir, lfs_tag_t gmask, lfs_tag_t gtag, lfs_off_t goff, void * gbuffer, lfs_size_t gsize )

static

Metadata pair and directory operations ///.

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lfs_dir_needsrelocation()

static bool lfs_dir_needsrelocation ( lfs_t * lfs, lfs_mdir_t * dir )

static

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lfs_dir_open()

int lfs_dir_open	(	lfs_t *	lfs,
		lfs_dir_t *	dir,
		const char *	path )

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lfs_dir_open_()

static int lfs_dir_open_ ( lfs_t * lfs, lfs_dir_t * dir, const char * path )

static

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lfs_dir_orphaningcommit()

static int lfs_dir_orphaningcommit ( lfs_t * lfs, lfs_mdir_t * dir, const struct lfs_mattr * attrs, int attrcount )

static

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lfs_dir_read()

int lfs_dir_read	(	lfs_t *	lfs,
		lfs_dir_t *	dir,
		struct lfs_info *	info )

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lfs_dir_read_()

static int lfs_dir_read_ ( lfs_t * lfs, lfs_dir_t * dir, struct lfs_info * info )

static

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lfs_dir_relocatingcommit()

static int lfs_dir_relocatingcommit ( lfs_t * lfs, lfs_mdir_t * dir, const lfs_block_t pair[2], const struct lfs_mattr * attrs, int attrcount, lfs_mdir_t * pdir )

static

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lfs_dir_rewind()

int lfs_dir_rewind	(	lfs_t *	lfs,
		lfs_dir_t *	dir )

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lfs_dir_rewind_()

static int lfs_dir_rewind_ ( lfs_t * lfs, lfs_dir_t * dir )

static

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lfs_dir_seek()

int lfs_dir_seek	(	lfs_t *	lfs,
		lfs_dir_t *	dir,
		lfs_off_t	off )

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lfs_dir_seek_()

static int lfs_dir_seek_ ( lfs_t * lfs, lfs_dir_t * dir, lfs_off_t off )

static

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lfs_dir_split()

static int lfs_dir_split ( lfs_t * lfs, lfs_mdir_t * dir, const struct lfs_mattr * attrs, int attrcount, lfs_mdir_t * source, uint16_t split, uint16_t end )

static

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lfs_dir_splittingcompact()

static int lfs_dir_splittingcompact ( lfs_t * lfs, lfs_mdir_t * dir, const struct lfs_mattr * attrs, int attrcount, lfs_mdir_t * source, uint16_t begin, uint16_t end )

static

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lfs_dir_tell()

lfs_soff_t lfs_dir_tell	(	lfs_t *	lfs,
		lfs_dir_t *	dir )

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lfs_dir_tell_()

static lfs_soff_t lfs_dir_tell_ ( lfs_t * lfs, lfs_dir_t * dir )

static

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lfs_dir_traverse()

static int lfs_dir_traverse ( lfs_t * lfs, const lfs_mdir_t * dir, lfs_off_t off, lfs_tag_t ptag, const struct lfs_mattr * attrs, int attrcount, lfs_tag_t tmask, lfs_tag_t ttag, uint16_t begin, uint16_t end, int16_t diff, int(* cb )(void *data, lfs_tag_t tag, const void *buffer), void * data )

static

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lfs_dir_traverse_filter()

static int lfs_dir_traverse_filter ( void * p, lfs_tag_t tag, const void * buffer )

static

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lfs_fcrc_fromle32()

static void lfs_fcrc_fromle32 ( struct lfs_fcrc * fcrc )

static

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lfs_fcrc_tole32()

static void lfs_fcrc_tole32 ( struct lfs_fcrc * fcrc )

static

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lfs_file_close()

int lfs_file_close	(	lfs_t *	lfs,
		lfs_file_t *	file )

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lfs_file_close_()

static int lfs_file_close_ ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_flush()

static int lfs_file_flush ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_flushedread()

static lfs_ssize_t lfs_file_flushedread ( lfs_t * lfs, lfs_file_t * file, void * buffer, lfs_size_t size )

static

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lfs_file_flushedwrite()

static lfs_ssize_t lfs_file_flushedwrite ( lfs_t * lfs, lfs_file_t * file, const void * buffer, lfs_size_t size )

static

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lfs_file_open()

int lfs_file_open	(	lfs_t *	lfs,
		lfs_file_t *	file,
		const char *	path,
		int	flags )

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lfs_file_open_()

static int lfs_file_open_ ( lfs_t * lfs, lfs_file_t * file, const char * path, int flags )

static

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lfs_file_opencfg()

int lfs_file_opencfg	(	lfs_t *	lfs,
		lfs_file_t *	file,
		const char *	path,
		int	flags,
		const struct lfs_file_config *	cfg )

File operations ///.

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lfs_file_opencfg_()

static int lfs_file_opencfg_ ( lfs_t * lfs, lfs_file_t * file, const char * path, int flags, const struct lfs_file_config * cfg )

static

Top level file operations ///.

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lfs_file_outline()

static int lfs_file_outline ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_read()

lfs_ssize_t lfs_file_read	(	lfs_t *	lfs,
		lfs_file_t *	file,
		void *	buffer,
		lfs_size_t	size )

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lfs_file_read_()

static lfs_ssize_t lfs_file_read_ ( lfs_t * lfs, lfs_file_t * file, void * buffer, lfs_size_t size )

static

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lfs_file_relocate()

static int lfs_file_relocate ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_rewind()

int lfs_file_rewind	(	lfs_t *	lfs,
		lfs_file_t *	file )

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lfs_file_rewind_()

static int lfs_file_rewind_ ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_seek()

lfs_soff_t lfs_file_seek	(	lfs_t *	lfs,
		lfs_file_t *	file,
		lfs_soff_t	off,
		int	whence )

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lfs_file_seek_()

static lfs_soff_t lfs_file_seek_ ( lfs_t * lfs, lfs_file_t * file, lfs_soff_t off, int whence )

static

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lfs_file_size()

lfs_soff_t lfs_file_size	(	lfs_t *	lfs,
		lfs_file_t *	file )

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lfs_file_size_()

static lfs_soff_t lfs_file_size_ ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_sync()

int lfs_file_sync	(	lfs_t *	lfs,
		lfs_file_t *	file )

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lfs_file_sync_()

static int lfs_file_sync_ ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_tell()

lfs_soff_t lfs_file_tell	(	lfs_t *	lfs,
		lfs_file_t *	file )

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lfs_file_tell_()

static lfs_soff_t lfs_file_tell_ ( lfs_t * lfs, lfs_file_t * file )

static

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lfs_file_truncate()

int lfs_file_truncate	(	lfs_t *	lfs,
		lfs_file_t *	file,
		lfs_off_t	size )

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lfs_file_truncate_()

static int lfs_file_truncate_ ( lfs_t * lfs, lfs_file_t * file, lfs_off_t size )

static

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lfs_file_write()

lfs_ssize_t lfs_file_write	(	lfs_t *	lfs,
		lfs_file_t *	file,
		const void *	buffer,
		lfs_size_t	size )

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lfs_file_write_()

static lfs_ssize_t lfs_file_write_ ( lfs_t * lfs, lfs_file_t * file, const void * buffer, lfs_size_t size )

static

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lfs_format()

int lfs_format	(	lfs_t *	lfs,
		const struct lfs_config *	cfg )

Filesystem functions ///.

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lfs_format_()

static int lfs_format_ ( lfs_t * lfs, const struct lfs_config * cfg )

static

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lfs_fs_demove()

static int lfs_fs_demove ( lfs_t * lfs )

static

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lfs_fs_deorphan()

static int lfs_fs_deorphan ( lfs_t * lfs, bool powerloss )

static

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lfs_fs_desuperblock()

static int lfs_fs_desuperblock ( lfs_t * lfs )

static

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lfs_fs_disk_version()

static uint32_t lfs_fs_disk_version ( lfs_t * lfs )

static

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lfs_fs_disk_version_major()

static uint16_t lfs_fs_disk_version_major ( lfs_t * lfs )

static

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lfs_fs_disk_version_minor()

static uint16_t lfs_fs_disk_version_minor ( lfs_t * lfs )

static

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lfs_fs_forceconsistency()

static int lfs_fs_forceconsistency ( lfs_t * lfs )

static

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lfs_fs_gc()

int lfs_fs_gc

(

lfs_t *

lfs

)

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lfs_fs_gc_()

static int lfs_fs_gc_ ( lfs_t * lfs )

static

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lfs_fs_grow()

int lfs_fs_grow	(	lfs_t *	lfs,
		lfs_size_t	block_count )

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lfs_fs_grow_()

static int lfs_fs_grow_ ( lfs_t * lfs, lfs_size_t block_count )

static

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lfs_fs_mkconsistent()

int lfs_fs_mkconsistent

(

lfs_t *

lfs

)

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lfs_fs_mkconsistent_()

static int lfs_fs_mkconsistent_ ( lfs_t * lfs )

static

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lfs_fs_parent()

static lfs_stag_t lfs_fs_parent ( lfs_t * lfs, const lfs_block_t dir[2], lfs_mdir_t * parent )

static

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lfs_fs_parent_match()

static int lfs_fs_parent_match ( void * data, lfs_tag_t tag, const void * buffer )

static

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lfs_fs_pred()

static int lfs_fs_pred ( lfs_t * lfs, const lfs_block_t dir[2], lfs_mdir_t * pdir )

static

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lfs_fs_prepmove()

static void lfs_fs_prepmove ( lfs_t * lfs, uint16_t id, const lfs_block_t pair[2] )

static

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lfs_fs_preporphans()

static int lfs_fs_preporphans ( lfs_t * lfs, int8_t orphans )

static

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lfs_fs_prepsuperblock()

static void lfs_fs_prepsuperblock ( lfs_t * lfs, bool needssuperblock )

static

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lfs_fs_size()

lfs_ssize_t lfs_fs_size

(

lfs_t *

lfs

)

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lfs_fs_size_()

static lfs_ssize_t lfs_fs_size_ ( lfs_t * lfs )

static

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lfs_fs_size_count()

static int lfs_fs_size_count ( void * p, lfs_block_t block )

static

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lfs_fs_stat()

int lfs_fs_stat	(	lfs_t *	lfs,
		struct lfs_fsinfo *	fsinfo )

Filesystem-level filesystem operations.

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lfs_fs_stat_()

static int lfs_fs_stat_ ( lfs_t * lfs, struct lfs_fsinfo * fsinfo )

static

Filesystem filesystem operations ///.

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lfs_fs_traverse()

int lfs_fs_traverse	(	lfs_t *	lfs,
		int(*	cb )(void *, lfs_block_t),
		void *	data )

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lfs_fs_traverse_()

int lfs_fs_traverse_ ( lfs_t * lfs, int(* cb )(void *data, lfs_block_t block), void * data, bool includeorphans )

static

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lfs_getattr()

lfs_ssize_t lfs_getattr	(	lfs_t *	lfs,
		const char *	path,
		uint8_t	type,
		void *	buffer,
		lfs_size_t	size )

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lfs_getattr_()

static lfs_ssize_t lfs_getattr_ ( lfs_t * lfs, const char * path, uint8_t type, void * buffer, lfs_size_t size )

static

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lfs_gstate_fromle32()

static void lfs_gstate_fromle32 ( lfs_gstate_t * a )

inlinestatic

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lfs_gstate_getorphans()

static uint8_t lfs_gstate_getorphans ( const lfs_gstate_t * a )

inlinestatic

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lfs_gstate_hasmove()

static bool lfs_gstate_hasmove ( const lfs_gstate_t * a )

inlinestatic

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lfs_gstate_hasmovehere()

static bool lfs_gstate_hasmovehere ( const lfs_gstate_t * a, const lfs_block_t * pair )

inlinestatic

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lfs_gstate_hasorphans()

static bool lfs_gstate_hasorphans ( const lfs_gstate_t * a )

inlinestatic

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lfs_gstate_iszero()

static bool lfs_gstate_iszero ( const lfs_gstate_t * a )

inlinestatic

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lfs_gstate_needssuperblock()

static bool lfs_gstate_needssuperblock ( const lfs_gstate_t * a )

inlinestatic

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lfs_gstate_tole32()

static void lfs_gstate_tole32 ( lfs_gstate_t * a )

inlinestatic

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lfs_gstate_xor()

static void lfs_gstate_xor ( lfs_gstate_t * a, const lfs_gstate_t * b )

inlinestatic

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lfs_init()

static int lfs_init ( lfs_t * lfs, const struct lfs_config * cfg )

static

Filesystem operations ///.

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lfs_mkdir()

int lfs_mkdir	(	lfs_t *	lfs,
		const char *	path )

Directory operations ///.

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lfs_mkdir_()

static int lfs_mkdir_ ( lfs_t * lfs, const char * path )

static

Top level directory operations ///.

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lfs_mlist_append()

static void lfs_mlist_append ( lfs_t * lfs, struct lfs_mlist * mlist )

static

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lfs_mlist_isopen()

static bool lfs_mlist_isopen ( struct lfs_mlist * head, struct lfs_mlist * node )

static

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lfs_mlist_remove()

static void lfs_mlist_remove ( lfs_t * lfs, struct lfs_mlist * mlist )

static

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lfs_mount()

int lfs_mount	(	lfs_t *	lfs,
		const struct lfs_config *	cfg )

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lfs_mount_()

static int lfs_mount_ ( lfs_t * lfs, const struct lfs_config * cfg )

static

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lfs_pair_cmp()

static int lfs_pair_cmp ( const lfs_block_t paira[2], const lfs_block_t pairb[2] )

inlinestatic

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lfs_pair_fromle32()

static void lfs_pair_fromle32 ( lfs_block_t pair[2] )

inlinestatic

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lfs_pair_isnull()

static bool lfs_pair_isnull ( const lfs_block_t pair[2] )

inlinestatic

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lfs_pair_issync()

static bool lfs_pair_issync ( const lfs_block_t paira[2], const lfs_block_t pairb[2] )

inlinestatic

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lfs_pair_swap()

static void lfs_pair_swap ( lfs_block_t pair[2] )

inlinestatic

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lfs_pair_tole32()

static void lfs_pair_tole32 ( lfs_block_t pair[2] )

inlinestatic

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lfs_path_isdir()

static bool lfs_path_isdir ( const char * path )

inlinestatic

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lfs_path_islast()

static bool lfs_path_islast ( const char * path )

inlinestatic

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lfs_path_namelen()

static lfs_size_t lfs_path_namelen ( const char * path )

inlinestatic

Small type-level utilities ///.

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lfs_remove()

int lfs_remove	(	lfs_t *	lfs,
		const char *	path )

General operations ///.

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lfs_remove_()

static int lfs_remove_ ( lfs_t * lfs, const char * path )

static

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lfs_removeattr()

int lfs_removeattr	(	lfs_t *	lfs,
		const char *	path,
		uint8_t	type )

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lfs_removeattr_()

static int lfs_removeattr_ ( lfs_t * lfs, const char * path, uint8_t type )

static

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lfs_rename()

int lfs_rename	(	lfs_t *	lfs,
		const char *	oldpath,
		const char *	newpath )

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lfs_rename_()

static int lfs_rename_ ( lfs_t * lfs, const char * oldpath, const char * newpath )

static

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lfs_setattr()

int lfs_setattr	(	lfs_t *	lfs,
		const char *	path,
		uint8_t	type,
		const void *	buffer,
		lfs_size_t	size )

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lfs_setattr_()

static int lfs_setattr_ ( lfs_t * lfs, const char * path, uint8_t type, const void * buffer, lfs_size_t size )

static

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lfs_stat()

int lfs_stat	(	lfs_t *	lfs,
		const char *	path,
		struct lfs_info *	info )

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lfs_stat_()

static int lfs_stat_ ( lfs_t * lfs, const char * path, struct lfs_info * info )

static

General fs operations ///.

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lfs_superblock_fromle32()

static void lfs_superblock_fromle32 ( lfs_superblock_t * superblock )

inlinestatic

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lfs_superblock_tole32()

static void lfs_superblock_tole32 ( lfs_superblock_t * superblock )

inlinestatic

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lfs_tag_chunk()

static uint8_t lfs_tag_chunk ( lfs_tag_t tag )

inlinestatic

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lfs_tag_dsize()

static lfs_size_t lfs_tag_dsize ( lfs_tag_t tag )

inlinestatic

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lfs_tag_id()

static uint16_t lfs_tag_id ( lfs_tag_t tag )

inlinestatic

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lfs_tag_isdelete()

static bool lfs_tag_isdelete ( lfs_tag_t tag )

inlinestatic

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lfs_tag_isvalid()

static bool lfs_tag_isvalid ( lfs_tag_t tag )

inlinestatic

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lfs_tag_size()

static lfs_size_t lfs_tag_size ( lfs_tag_t tag )

inlinestatic

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lfs_tag_splice()

static int8_t lfs_tag_splice ( lfs_tag_t tag )

inlinestatic

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lfs_tag_type1()

static uint16_t lfs_tag_type1 ( lfs_tag_t tag )

inlinestatic

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lfs_tag_type2()

static uint16_t lfs_tag_type2 ( lfs_tag_t tag )

inlinestatic

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lfs_tag_type3()

static uint16_t lfs_tag_type3 ( lfs_tag_t tag )

inlinestatic

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lfs_tortoise_detectcycles()

static int lfs_tortoise_detectcycles ( const lfs_mdir_t * dir, struct lfs_tortoise_t * tortoise )

static

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lfs_unmount()

int lfs_unmount

(

lfs_t *

lfs

)

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lfs_unmount_()

static int lfs_unmount_ ( lfs_t * lfs )

static

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