Struct InodeRef 

pub struct InodeRef {
    pub ino: u32,
    pub generation: Option<u32>,
}

An inode named by number, for the inode-addressed entry points (lookup_at, stat_ino, apply_*_at, apply_*_ino).

A handle-based host holds one of these per item instead of a path: a path is the wrong key for a driver, because a hard link gives one inode several, and renaming a directory changes every one beneath it.

generation is the i_generation the caller read alongside the number (every attribute read returns it). With it, a handle to an inode that was freed and then reused for a different file is refused as Error::Stale instead of reaching the new file. Without it (None, or a bare u32 converted with into()) only a freed or never-used inode is refused, which is what a caller that has not read the generation yet can ask for.

Fields

ino: u32

Inode number (1-based).

generation: Option<u32>

Expected i_generation, or None to accept any.

Implementations

impl InodeRef

pub const fn new(ino: u32, generation: u32) -> Self

Inode ino, which must still carry generation.

pub const fn any(ino: u32) -> Self

Inode ino, whatever its generation.

Trait Implementations

impl Clone for InodeRef

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for InodeRef

impl Debug for InodeRef

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

Formats the value using the given formatter.

impl Eq for InodeRef

impl From<u32> for InodeRef

fn from(ino: u32) -> Self

Converts to this type from the input type.

impl Hash for InodeRef

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for InodeRef

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for InodeRef