Struct WasmInvokeHandler 

pub struct WasmInvokeHandler { /* private fields */ }

Sandboxed WASM handler that implements crate::server::InvokeHandler.

The handler holds a Wasmtime Engine, a background epoch-ticker thread, and a Mutex protecting the Store and component instance. Calls are serialised by the mutex; the first version does not support parallel invocation.

Implementations

impl WasmInvokeHandler

pub fn new( pack: &LoadedHandlerPack, model_json: &Value, ) -> Result<Self, HandlerLoadError>

Load and instantiate a signed handler pack.

Verifies that guest metadata() matches the signed manifest, then calls configure() with the canonical model JSON. Returns an error if any step fails; no partial state is retained.

The epoch ticker is started before component instantiation so that metadata(), configure() and every later invoke() all run under the same wall-clock deadline. Fuel is reset before each call so the budgets do not pool across stages.

pub fn engine(&self) -> &Engine

Returns the engine reference (needed for external epoch control if any).

Trait Implementations

impl Debug for WasmInvokeHandler

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

Formats the value using the given formatter.

impl InvokeHandler for WasmInvokeHandler

fn invoke(&self, capability: &str, input: &Value) -> Result<Value, InvokeError>