Struct Snd

pub struct Snd<'a, T: Clone, W: WatchBehavior<T> + ?Sized> { /* private fields */ }

A receiver can .await a change in the Watch value.

Implementations

impl<'a, T: Clone, W: WatchBehavior<T> + ?Sized> Snd<'a, T, W>

pub fn send(&self, val: T)

Sends a new value to the Watch.

pub fn clear(&self)

Clears the value of the Watch. This will cause calls to Rcv::get to be pending.

pub fn try_get(&self) -> Option<T>

Tries to retrieve the value of the Watch.

pub fn try_get_and<F>(&self, f: F) -> Option<T>

where F: Fn(&T) -> bool,

Tries to peek the current value of the Watch if it matches the predicate function f.

pub fn contains_value(&self) -> bool

Returns true if the Watch contains a value.

pub fn send_modify<F>(&self, f: F)

where F: Fn(&mut Option<T>),

Modify the value of the Watch using a closure.

pub fn send_if_modified<F>(&self, f: F)

where F: Fn(&mut Option<T>) -> bool,

Modify the value of the Watch using a closure. The closure must return true if the value was modified, which notifies all receivers.

Trait Implementations

impl<'a, T: Clone, W: WatchBehavior<T> + ?Sized> Clone for Snd<'a, T, W>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.