Struct Callback 

pub struct Callback<T> { /* private fields */ }

A clonable callback used by Reactor events.

Clones compare equal and retain the same function. Callbacks made by a LocalSender from a captureless mapper can also compare equal across publications.

Implementations

impl<T> Callback<T>

pub fn new(callback: impl Fn(T) + 'static) -> Self

Wraps a callback that always reports accepted delivery.

pub fn call(&self, value: T) -> bool

Calls the handler and returns whether it accepted the value.

Sender-backed callbacks return false when their component message cannot be queued.

Trait Implementations

impl<T> Clone for Callback<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for Callback<T>

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

Formats the value using the given formatter.

impl<T> IntoPayloadCallback<T> for Callback<T>

fn into_payload_callback(self) -> Self

impl IntoUnitCallback for Callback<()>

fn into_unit_callback(self) -> Self

impl<T> PartialEq for Callback<T>

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

Equality operator ==.

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

Inequality operator !=.