Struct WasmActor 

pub struct WasmActor<R: Reactor> {
    pub fuel_per_message: u64,
    /* private fields */
}

An actor whose lifecycle hooks are implemented in a WASM module.

Construct via WasmActor::new and spawn with the normal ChildSpec factory API. The actor creates its WASM instance lazily in on_start.

Fields

fuel_per_message: u64

Fuel units granted per on_message call. 0 = use the instance default.

Implementations

impl<R: Reactor> WasmActor<R>

pub fn new( module: Arc<Box<dyn WasmModule>>, host: Arc<dyn WasmHost>, fuel_per_message: u64, ) -> Self

Create a new actor backed by module.

• module — a compiled (but not yet instantiated) WASM module.
• host — the WASM runtime that will instantiate the module in on_start.
• fuel_per_message — fuel budget granted before each on_message call. Use 0 to rely on the instance’s built-in default.

Trait Implementations

impl<R: Reactor> Actor<R> for WasmActor<R>

fn on_start(&mut self, _ctx: &mut ActorContext<R>) -> Result<(), ActorError>

fn on_message( &mut self, ctx: &mut ActorContext<R>, envelope: &Envelope, payload: MessagePayload, ) -> Result<(), ActorError>

fn on_stop(&mut self, _ctx: &mut ActorContext<R>, reason: StopReason)

impl<R: Reactor> Send for WasmActor<R>