Struct INodeNo 

pub struct INodeNo(pub u64);

A newtype for inode numbers

These are generated by the filesystem implementation and returned to the kernel in response to a call to Lookup, Create, MkNod, MkDir or SymLink. The kernel will then pass these numbers back to the filesystem implementation when it needs to refer to a given file. Every request has an associated INodeNo, accessible as Request::nodeid.

Reference Counting

Every time the kernel receives a given inode number in a response to a Lookup, Create, MkNod, MkDir or SymLink request it increments an internal counter for that inode. The filesystem implementation should do the same. When the kernel is no longer interested in this inode it will send a Forget message with that counter. The filesystem implementation should decrement its own counter and if it reaches 0 then the inode number may be recycled and your filesystem implementation may clean up its internal data-structures relating to that inode.

Tuple Fields

0: u64

Implementations

impl INodeNo

pub const ROOT: INodeNo

Filesystem root inode number.

Trait Implementations

impl Clone for INodeNo

fn clone(&self) -> INodeNo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for INodeNo

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

Formats the value using the given formatter.

impl Display for INodeNo

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

Formats the value using the given formatter.

impl From<INodeNo> for u64

fn from(fh: INodeNo) -> Self

Converts to this type from the input type.

impl Hash for INodeNo

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 Ord for INodeNo

fn cmp(&self, other: &INodeNo) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for INodeNo

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for INodeNo

fn partial_cmp(&self, other: &INodeNo) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for INodeNo

impl Eq for INodeNo

impl StructuralPartialEq for INodeNo