结构体 Ready 

pub struct Ready(/* private fields */);

描述 I/O 资源的就绪状态。

Ready 用于跟踪 I/O 资源已就绪可执行的操作。

实现

impl Ready

pub const EMPTY: Ready

返回空的 Ready 集合。

pub const READABLE: Ready

返回表示可读就绪的 Ready。

pub const WRITABLE: Ready

返回表示可写就绪的 Ready。

pub const READ_CLOSED: Ready

返回表示读关闭就绪的 Ready。

pub const WRITE_CLOSED: Ready

返回表示写关闭就绪的 Ready。

pub const ERROR: Ready

返回表示错误就绪的 Ready。

pub const ALL: Ready

返回表示对所有操作都就绪的 Ready。

pub fn is_empty(self) -> bool

如果 Ready 是空集，则返回 true。

示例

use tokio::io::Ready;

assert!(Ready::EMPTY.is_empty());
assert!(!Ready::READABLE.is_empty());

pub fn is_readable(self) -> bool

如果该值包含 readable，则返回 true。

示例

use tokio::io::Ready;

assert!(!Ready::EMPTY.is_readable());
assert!(Ready::READABLE.is_readable());
assert!(Ready::READ_CLOSED.is_readable());
assert!(!Ready::WRITABLE.is_readable());

pub fn is_writable(self) -> bool

如果该值包含 writable readiness，则返回 true。

示例

use tokio::io::Ready;

assert!(!Ready::EMPTY.is_writable());
assert!(!Ready::READABLE.is_writable());
assert!(Ready::WRITABLE.is_writable());
assert!(Ready::WRITE_CLOSED.is_writable());

pub fn is_read_closed(self) -> bool

如果该值包含 read-closed readiness，则返回 true。

示例

use tokio::io::Ready;

assert!(!Ready::EMPTY.is_read_closed());
assert!(!Ready::READABLE.is_read_closed());
assert!(Ready::READ_CLOSED.is_read_closed());

pub fn is_write_closed(self) -> bool

如果该值包含 write-closed readiness，则返回 true。

示例

use tokio::io::Ready;

assert!(!Ready::EMPTY.is_write_closed());
assert!(!Ready::WRITABLE.is_write_closed());
assert!(Ready::WRITE_CLOSED.is_write_closed());

pub fn is_error(self) -> bool

如果该值包含 error readiness，则返回 true。

示例

use tokio::io::Ready;

assert!(!Ready::EMPTY.is_error());
assert!(!Ready::WRITABLE.is_error());
assert!(Ready::ERROR.is_error());

Trait 实现

impl BitAnd for Ready

type Output = Ready

应用 & 运算符后得到的类型。

fn bitand(self, other: Ready) -> Ready

Performs the & operation. 更多信息

impl BitOr for Ready

type Output = Ready

应用 | 运算符后得到的类型。

fn bitor(self, other: Ready) -> Ready

Performs the | operation. 更多信息

impl BitOrAssign for Ready

fn bitor_assign(&mut self, other: Ready)

Performs the |= operation. 更多信息

impl Clone for Ready

fn clone(&self) -> Ready

返回值的副本。 更多信息

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

Performs copy-assignment from source. 更多信息

impl Debug for Ready

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

使用给定的格式化器格式化此值。 更多信息

impl Ord for Ready

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

This method returns an Ordering between self and other. 更多信息

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

where Self: Sized,

Compares and returns the maximum of two values. 更多信息

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

where Self: Sized,

Compares and returns the minimum of two values. 更多信息

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

where Self: Sized,

Restrict a value to a certain interval. 更多信息

impl PartialEq for Ready

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

测试 self 与 other 值是否相等，供 == 运算符使用。

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

测试 != 运算符。默认实现几乎总是够用，除非有非常充分的理由，否则不应被覆盖。

impl PartialOrd for Ready

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

若存在，此方法返回 self 与 other 值之间的排序关系。 更多信息

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

测试小于（针对 self 与 other），供 < 运算符使用。 更多信息

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

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

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

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

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

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

impl Sub for Ready

type Output = Ready

应用 - 运算符后得到的类型。

fn sub(self, other: Ready) -> Ready

Performs the - operation. 更多信息

impl Copy for Ready

impl Eq for Ready

impl StructuralPartialEq for Ready