Struct WatchReader 

pub struct WatchReader<'a, T: Copy> { /* private fields */ }

Facilitates the async reading of values from the Watch.

Implementations

impl<T: Copy> WatchReader<'_, T>

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

Returns the latest value, or None if uninitialized.

pub async fn changed(&mut self) -> T

Wait for an unseen value.

If the current value is unseen it will be returned immediately.

If current value is already seen, it will wait for a new value to be written and then read it.

Trait Implementations

impl<T> Debug for WatchReader<'_, T>

where T: Copy,

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

Formats the value using the given formatter.