Enum Op 

#[non_exhaustive]
pub enum Op {
    Nop,
    Read,
    Write,
    Flush,
    RegisterFiles,
    RegisterBuffers,
    Cancel,
}

One IoRing operation.

#[non_exhaustive]: the kernel’s op table has grown before (M1.4, D-7) and will again. A consumer must not be able to write an exhaustive match that a new variant would break. IoRing::supports_raw reaches an op this enum does not yet name.

Naming an op here is not the same as offering a way to push it: every variant except Op::Nop gates one or more crate::Batch methods (Read gates the four read pushes, Write the four write pushes, Flush and Cancel two each, and the two registration ops one each), while Nop gates none and is reachable only through IoRing::push_raw. See IoRing::supports (M10.1).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Nop

IORING_OP_NOP.

Read

IORING_OP_READ.

Write

IORING_OP_WRITE.

Flush

IORING_OP_FLUSH.

RegisterFiles

IORING_OP_REGISTER_FILES.

RegisterBuffers

IORING_OP_REGISTER_BUFFERS.

Cancel

IORING_OP_CANCEL.

Implementations

impl Op

pub fn code(self) -> IORING_OP_CODE

The raw IORING_OP_CODE value.

Trait Implementations

impl Clone for Op

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 Op

impl Debug for Op

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

Formats the value using the given formatter.

impl Eq for Op

impl Hash for Op

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 Op

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Op