Struct InodeTable 

pub struct InodeTable { /* private fields */ }

Bidirectional mapping between FUSE inodes and MTP objects, with cached metadata.

Implementations

impl InodeTable

pub fn new() -> Self

Creates a new table with only the root inode (inode 1).

pub fn bump_generation(&mut self)

Marks every cached object handle as stale, without touching inode numbers, names, or the tree shape. Called after a reconnect: the kernel and any open file descriptor keep referring to the same inodes, while the handles behind them get re-resolved by path on next use.

pub fn is_fresh(&self, inode: u64) -> bool

Whether this inode’s handle was resolved against the current session. Storage and root entries carry no session-scoped handle, so they’re always fresh (their storage IDs are re-mapped eagerly on reconnect).

pub fn set_handle(&mut self, inode: u64, handle: ObjectHandle)

Points an inode at a freshly resolved handle, keeping its inode number.

pub fn set_storage_id(&mut self, inode: u64, storage_id: StorageId)

Re-points a storage inode at a storage ID from the current session.

pub fn add_storage(&mut self, storage_id: StorageId, name: String) -> u64

Adds a storage as a child of root. Returns the new inode number.

pub fn add_object( &mut self, parent_inode: u64, handle: ObjectHandle, name: String, is_dir: bool, size: u64, mtime: SystemTime, ) -> u64

Adds a file or directory under the given parent. Returns the new inode number.

pub fn sync_children(&mut self, parent_inode: u64, children: &[ChildInfo])

Replaces a directory’s children with what the device just reported, reusing the inode number of every child that’s still there under the same name and kind.

Inode numbers must survive a re-listing: the kernel caches them and open file descriptors refer to them, so handing out a fresh number for a file that didn’t go anywhere breaks reads on an already-open fd. Only the handle, size, and mtime are refreshed in place. Children the device no longer reports are removed.

pub fn get(&self, inode: u64) -> Option<&InodeEntry>

Looks up an entry by inode number.

pub fn get_mut(&mut self, inode: u64) -> Option<&mut InodeEntry>

Mutable lookup by inode number.

pub fn lookup(&self, parent_inode: u64, name: &str) -> Option<u64>

Finds a child inode by parent inode and name.

pub fn children(&self, parent_inode: u64) -> Vec<u64>

Returns the inodes of all children of the given parent.

pub fn remove(&mut self, inode: u64) -> Option<InodeEntry>

Removes an entry and its index entries. Does not remove descendants.

pub fn rename(&mut self, inode: u64, new_parent: u64, new_name: String)

Updates an entry’s parent and name (for rename/move operations).

pub fn find_parent_by_handle(&self, handle: ObjectHandle) -> Option<u64>

Finds the parent inode of an entry identified by its MTP object handle. Returns None if the handle is not in the table.

Trait Implementations

impl Debug for InodeTable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for InodeTable

fn default() -> Self

Returns the “default value” for a type.