Struct NonBlocking 

pub struct NonBlocking<'a> {
    pub(crate) _marker: PhantomData<&'a mut &'a ()>,
}

A strategy that uses polling to efficiently wait for an event.

Fields

_marker: PhantomData<&'a mut &'a ()>

The type &'a mut &'a T is invariant over 'a, like Context is.

We used to just use Context here, but then Context became !Send and !Sync, making all of the futures that use this type !Send and !Sync as well. So we just take the lifetime invariance and none of the downsides.

Trait Implementations

impl<'a> Clone for NonBlocking<'a>

fn clone(&self) -> NonBlocking<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for NonBlocking<'a>

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

Formats the value using the given formatter.

impl<'a> Default for NonBlocking<'a>

fn default() -> NonBlocking<'a>

Returns the “default value” for a type.

impl<'a> Hash for NonBlocking<'a>

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<'a> Ord for NonBlocking<'a>

fn cmp(&self, other: &NonBlocking<'a>) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl<'a> PartialEq for NonBlocking<'a>

fn eq(&self, other: &NonBlocking<'a>) -> 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<'a> PartialOrd for NonBlocking<'a>

fn partial_cmp(&self, other: &NonBlocking<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

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

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

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

impl<'a> Strategy<'_> for NonBlocking<'a>

type Context = Context<'a>

The context needed to poll the future.

type Future = EventListener

The future returned by the Strategy::wait method.

fn wait(&mut self, evl: EventListener) -> Self::Future

Wait for the event listener to become ready.

fn poll<T, L: Listener<T> + Unpin>( &mut self, event_listener: &mut Option<L>, context: &mut Self::Context, ) -> Poll<T>

Poll the event listener until it is ready.

impl<'a> Copy for NonBlocking<'a>

impl<'a> Eq for NonBlocking<'a>

impl<'a> StructuralPartialEq for NonBlocking<'a>