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pub struct AsyncRelmWorker<Model, ParentModel>where
    Model: AsyncComponentUpdate<ParentModel, Widgets = ()> + Send + 'static,
    Model::Components: Send,
    ParentModel: ModelTrait,
    ParentModel::Msg: Send,
    Model::Msg: Send,
{ /* private fields */ }
Available on crate feature tokio-rt only.
Expand description

A AsyncRelmWorker is like a RelmWorker but runs the AsyncComponentUpdate::update function in a tokio Runtime.

Implementations

Create a new AsyncRelmWorker that runs the AsyncComponentUpdate::update function in a tokio Runtime.

Send a message to this component. This can be used by the parent to send messages to this worker.

Examples found in repository?
relm4-examples/examples/tokio.rs (line 101)
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    fn update(&mut self, msg: AppMsg, components: &AppComponents, _sender: Sender<AppMsg>) -> bool {
        self.reset();

        match msg {
            AppMsg::Request(url) => {
                components.http.send(HttpMsg::Request(url)).unwrap();
                self.set_text_waiting(true);
                self.set_image_waiting(true);
            }
            AppMsg::SetText(text_opt) => {
                self.set_text_waiting(false);
                if let Some(text) = text_opt {
                    self.set_text(text);
                } else {
                    self.set_text("No response".to_string());
                }
            }
            AppMsg::SetImage(bytes_opt) => {
                self.set_image_waiting(false);
                if let Some(bytes) = bytes_opt {
                    let buf = Pixbuf::from_read(bytes.reader()).ok();
                    self.set_image_data(buf);
                } else {
                    self.set_image_data(None);
                }
            }
        }
        true
    }

Get a sender to send messages to this component.

Trait Implementations

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.