Struct deltachat::EventEmitter

pub struct EventEmitter(Receiver<Event>);

A receiver of events from a Context.

See Context::get_event_emitter to create an instance. If multiple instances are created events emitted by the Context will only be delivered to one of the EventEmitters.

The EventEmitter is also a Stream, so a typical usage is in a while let loop.

Tuple Fields

0: Receiver<Event>

Implementations

impl EventEmitter

pub(crate) fn project<'pin>( self: Pin<&'pin mut Self> ) -> __EventEmitterProjection<'pin>

pub(crate) fn project_ref<'pin>( self: Pin<&'pin Self> ) -> __EventEmitterProjectionRef<'pin>

impl EventEmitter

pub async fn recv(&self) -> Option<Event>

Async recv of an event. Return None if the Sender has been dropped.

Trait Implementations

impl Clone for EventEmitter

fn clone(&self) -> EventEmitter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EventEmitter

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

Formats the value using the given formatter.

impl Stream for EventEmitter

type Item = Event

Values yielded by the stream.

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_> ) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted.

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream.

impl<'pin> Unpin for EventEmitterwhere __EventEmitter<'pin>: Unpin,