nix::sys::epoll

Struct EpollTimeout

source
pub struct EpollTimeout(/* private fields */);
Expand description

PollTimeout argument for polling.

Implementations§

source§

impl PollTimeout

source

pub const NONE: Self = _

Blocks indefinitely.

Specifying a negative value in timeout means an infinite timeout.

source

pub const ZERO: Self = _

Returns immediately.

Specifying a timeout of zero causes poll() to return immediately, even if no file descriptors are ready.

source

pub const MAX: Self = _

Blocks for at most i32::MAX milliseconds.

source

pub fn is_none(&self) -> bool

Returns if self equals PollTimeout::NONE.

source

pub fn is_some(&self) -> bool

Returns if self does not equal PollTimeout::NONE.

source

pub fn as_millis(&self) -> Option<u32>

Returns the timeout in milliseconds if there is some, otherwise returns None.

source

pub fn duration(&self) -> Option<Duration>

Returns the timeout as a Duration if there is some, otherwise returns None.

Trait Implementations§

source§

impl Clone for PollTimeout

source§

fn clone(&self) -> PollTimeout

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for PollTimeout

source§

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

Formats the value using the given formatter. Read more
source§

impl<T: Into<PollTimeout>> From<Option<T>> for PollTimeout

source§

fn from(x: Option<T>) -> Self

Converts to this type from the input type.
source§

impl From<PollTimeout> for i128

source§

fn from(x: PollTimeout) -> Self

Converts to this type from the input type.
source§

impl From<PollTimeout> for i32

source§

fn from(x: PollTimeout) -> Self

Converts to this type from the input type.
source§

impl From<PollTimeout> for i64

source§

fn from(x: PollTimeout) -> Self

Converts to this type from the input type.
source§

impl From<u16> for PollTimeout

source§

fn from(x: u16) -> Self

Converts to this type from the input type.
source§

impl From<u8> for PollTimeout

source§

fn from(x: u8) -> Self

Converts to this type from the input type.
source§

impl Ord for PollTimeout

source§

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

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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

Compares and returns the maximum of two values. Read more
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
1.50.0 · source§

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

Restrict a value to a certain interval. Read more
source§

impl PartialEq for PollTimeout

source§

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

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

impl PartialOrd for PollTimeout

source§

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

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

impl TryFrom<Duration> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: Duration) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for Duration

source§

type Error = ()

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, ()>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for i16

source§

type Error = <i16 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for i8

source§

type Error = <i8 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for u128

source§

type Error = <u128 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for u16

source§

type Error = <u16 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for u32

source§

type Error = <u32 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for u64

source§

type Error = <u64 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<PollTimeout> for u8

source§

type Error = <u8 as TryFrom<i32>>::Error

The type returned in the event of a conversion error.
source§

fn try_from(x: PollTimeout) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<i128> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: i128) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<i16> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: i16) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<i32> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: i32) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<i64> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: i64) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<i8> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: i8) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<u128> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: u128) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<u32> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: u32) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl TryFrom<u64> for PollTimeout

source§

type Error = PollTimeoutTryFromError

The type returned in the event of a conversion error.
source§

fn try_from(x: u64) -> Result<Self, Self::Error>

Performs the conversion.
source§

impl Copy for PollTimeout

source§

impl Eq for PollTimeout

source§

impl StructuralPartialEq for PollTimeout

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for T
where T: Clone,

source§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

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

fn clone_into(&self, target: &mut T)

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

impl<T, U> TryFrom<U> for T
where U: Into<T>,

source§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

source§

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

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.