Struct FastFileSystem 

pub struct FastFileSystem(pub Arc<FastFileSystemInner>);

A reference-counted wrapper around FastFileSystemInner.

This structure provides access to a Fast File System instance while ensuring safe concurrent access through an [Arc].

Tuple Fields

0: Arc<FastFileSystemInner>

Implementations

impl FastFileSystem

pub const ROOT_INODE_NUMBER: InodeNumber

The inode number of the root directory (/).

pub fn from_disk( disk: Disk, debug_journal: bool, disable_journal: bool, ) -> Result<Self, KernelError>

Loads a Fast File System from a given disk.

This function attempts to read the superblock from the disk. If the disk contains a valid FFS superblock, it returns an initialized FastFileSystem instance; otherwise, it returns None.

Parameters

• disk: The disk device containing the filesystem.

Returns

• Some(Self): If the filesystem is successfully loaded.
• None: If the disk does not contain a valid Fast File System.

pub fn get_inode(&self, ino: InodeNumber) -> Result<TrackedInode, KernelError>

Retrieves an in-memory representation of the inode identified by ino.

This function looks up the inode in the Fast File System and returns a TrackedInode.

Trait Implementations

impl Clone for FastFileSystem

fn clone(&self) -> FastFileSystem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl FileSystem for FastFileSystem

fn root(&self) -> Option<Directory>

Retrieves the root directory of the filesystem.