Struct async_change_tracker::ChangeTracker [−][src]
pub struct ChangeTracker<T> { /* fields omitted */ }Tracks changes to data. Notifies listeners via a futures::Stream.
The data to be tracked is type T. The value of type T is wrapped in a
private field. The AsRef trait is implemented so &T can be obtained by
calling as_ref(). Read and write access can be gained by calling the
modify method.
Subsribe to changes by calling get_changes.
See the module-level documentation for more information and a usage example.
Methods
impl<T> ChangeTracker<T> where
T: Clone, [src]
impl<T> ChangeTracker<T> where
T: Clone, pub fn new(value: T) -> Self[src]
pub fn new(value: T) -> SelfCreate a new ChangeTracker which takes ownership
of the data of type T.
pub fn get_changes(&self, capacity: usize) -> Receiver<(T, T)>[src]
pub fn get_changes(&self, capacity: usize) -> Receiver<(T, T)>Returns a futures::Stream that emits a message when a change occurs
The capacity of the underlying channel is specified with the capacity
argument.
To remove a listener, drop the Receiver.
pub fn modify<F>(&mut self, f: F) where
F: FnOnce(&mut T), [src]
pub fn modify<F>(&mut self, f: F) where
F: FnOnce(&mut T), Modify the data value, notifying listeners upon change.
Trait Implementations
Auto Trait Implementations
impl<T> Send for ChangeTracker<T> where
T: Send,
impl<T> Send for ChangeTracker<T> where
T: Send, impl<T> Sync for ChangeTracker<T> where
T: Send + Sync,
impl<T> Sync for ChangeTracker<T> where
T: Send + Sync,