Enum IoState 

#[repr(u8)]
pub enum IoState {
    Idle = 0,
    Submitted = 1,
    InProgress = 2,
    Completed = 3,
    Cancelled = 4,
    Failed = 5,
}

I/O operation state machine I/O操作状态机

Tracks the lifecycle of an I/O operation from submission to completion. 跟踪I/O操作从提交到完成的生命周期。

Variants

Idle = 0

Operation is idle, not yet submitted / 操作空闲，尚未提交

Submitted = 1

Operation has been submitted to kernel / 操作已提交给内核

InProgress = 2

Operation is in progress / 操作进行中

Completed = 3

Operation completed successfully / 操作成功完成

Cancelled = 4

Operation was cancelled / 操作被取消

Failed = 5

Operation failed / 操作失败

Implementations

impl IoState

pub const fn is_finished(self) -> bool

Check if the operation is finished (completed, cancelled, or failed) 检查操作是否已完成（成功、取消或失败）

pub const fn is_in_progress(self) -> bool

Check if the operation is in progress (submitted or in progress) 检查操作是否进行中（已提交或进行中）

pub fn is_success(self) -> bool

Check if the operation succeeded 检查操作是否成功

Trait Implementations

impl Clone for IoState

fn clone(&self) -> IoState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IoState

impl Debug for IoState

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

Formats the value using the given formatter.

impl Eq for IoState

impl Hash for IoState

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 IoState

fn eq(&self, other: &IoState) -> 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 StructuralPartialEq for IoState