Struct Signals 

pub struct Signals { /* private fields */ }

Registry of Receivers. Cheap to clone: clones share one list.

Implementations

impl Signals

pub fn new() -> Self

An empty registry.

pub fn connect(&self, receiver: Receiver)

Append receiver; it runs after those connected earlier.

Takes &self: the registry is shared, so receivers connected after Db::with_signals are seen by every clone.

pub fn len(&self) -> usize

Number of connected receivers.

pub fn is_empty(&self) -> bool

Whether no receiver is connected.

Trait Implementations

impl Clone for Signals

fn clone(&self) -> Signals

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Signals

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

Formats the value using the given formatter.

impl Default for Signals

fn default() -> Signals

Returns the “default value” for a type.