# [−] [src] Struct tokio::io::Interest

    pub struct Interest(_);

Readiness event interest

Specifies the readiness events the caller is interested in when awaiting on I/O resource readiness states.

## Implementations

### `impl Interest` [src]

#### `pub const READABLE: Interest` [src]

Interest in all readable events.

Readable interest includes read-closed events.

#### `pub const WRITABLE: Interest` [src]

Interest in all writable events

Writable interest includes write-closed events.

#### `pub const fn is_readable(self) -> bool` [src]

Returns true if the value includes readable interest.

# Examples

    use tokio::io::Interest;

    assert!(Interest::READABLE.is_readable());
    assert!(!Interest::WRITABLE.is_readable());

    let both = Interest::READABLE | Interest::WRITABLE;
    assert!(both.is_readable());

#### `pub const fn is_writable(self) -> bool` [src]

Returns true if the value includes writable interest.

# Examples

    use tokio::io::Interest;

    assert!(!Interest::READABLE.is_writable());
    assert!(Interest::WRITABLE.is_writable());

    let both = Interest::READABLE | Interest::WRITABLE;
    assert!(both.is_writable());

#### `pub const fn add(self, other: Interest) -> Interest` [src]

Add together two `Interst` values.

This function works from a `const` context.

# Examples

    use tokio::io::Interest;

    const BOTH: Interest = Interest::READABLE.add(Interest::WRITABLE);

    assert!(BOTH.is_readable());
    assert!(BOTH.is_writable());

## Trait Implementations

### `impl BitOr<Interest> for Interest` [src]

#### `type Output = Self`

The resulting type after applying the `|` operator.

#### `fn bitor(self, other: Self) -> Self` [src]

Performs the `|` operation. Read more

### `impl BitOrAssign<Interest> for Interest` [src]

#### `fn bitor_assign(&mut self, other: Self)` [src]

Performs the `|=` operation. Read more

### `impl Clone for Interest` [src]

#### `fn clone(&self) -> Interest` [src]

Returns a copy of the value. Read more

#### `fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Copy for Interest` [src]

### `impl Debug for Interest` [src]

#### `fn fmt(&self, fmt: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

### `impl Eq for Interest` [src]

### `impl PartialEq<Interest> for Interest` [src]

#### `fn eq(&self, other: &Interest) -> bool` [src]

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `fn ne(&self, other: &Interest) -> bool` [src]

This method tests for `!=`.

### `impl StructuralEq for Interest` [src]

### `impl StructuralPartialEq for Interest` [src]

## Auto Trait Implementations

### `impl RefUnwindSafe for Interest`

### `impl Send for Interest`

### `impl Sync for Interest`

### `impl Unpin for Interest`

### `impl UnwindSafe for Interest`

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &Tⓘ

### Notable traits for &'_ mut F

`impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;`
` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut Tⓘ

### Notable traits for &'_ mut F

`impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized, type Output = <F as Future>::Output;`
` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T> ToOwned for T where
T: Clone,` [src]

#### `type Owned = T`

The resulting type after obtaining ownership.

#### `pub fn to_owned(&self) -> T` [src]

Creates owned data from borrowed data, usually by cloning. Read more

#### `pub fn clone_into(&self, target: &mut T)` [src]

🔬 This is a nightly-only experimental API. (`toowned_clone_into`)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

#### `type Error = <U as TryFrom<T>>::Error`

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.