Struct FsMetadataStore 

pub struct FsMetadataStore { /* private fields */ }

SochFS Metadata Store

Manages filesystem metadata with ACID guarantees via LSCS system tables.

Implementations

impl FsMetadataStore

pub fn new<W, L>(write_fn: W, wal_fn: L) -> Self

where W: Fn(&[u8], &[u8]) -> Result<()> + Send + Sync + 'static, L: Fn(&FsWalOp) -> Result<()> + Send + Sync + 'static,

Create a new metadata store

pub fn init(&self) -> Result<()>

Initialize filesystem (create root if needed)

pub fn get_inode(&self, id: InodeId) -> Option<Inode>

Get inode by ID

pub fn create_inode(&self, file_type: FileType) -> Result<Inode>

Create a new inode

pub fn update_inode(&self, inode: &Inode) -> Result<()>

Update an inode

pub fn delete_inode(&self, id: InodeId) -> Result<()>

Delete an inode

pub fn add_dir_entry( &self, parent_id: InodeId, name: &str, child_id: InodeId, file_type: FileType, ) -> Result<()>

Add directory entry

pub fn remove_dir_entry(&self, parent_id: InodeId, name: &str) -> Result<()>

Remove directory entry

pub fn list_dir(&self, parent_id: InodeId) -> Vec<DirEntryRow>

List directory entries

pub fn lookup(&self, parent_id: InodeId, name: &str) -> Option<InodeId>

Lookup entry in directory

pub fn resolve_path(&self, path: &str) -> Result<InodeId>

Resolve path to inode

O(d) where d = path depth

pub fn create_file(&self, parent_id: InodeId, name: &str) -> Result<Inode>

Create file in directory

pub fn create_dir(&self, parent_id: InodeId, name: &str) -> Result<Inode>

Create directory in parent

pub fn delete(&self, parent_id: InodeId, name: &str) -> Result<()>

Delete file or empty directory

pub fn superblock(&self) -> Superblock

Get superblock

pub fn update_superblock(&self, sb: &Superblock) -> Result<()>

Update superblock

pub fn replay_wal_op(&self, op: &FsWalOp) -> Result<()>

Recover from WAL operations