Struct HostBridgeImpl 

pub struct HostBridgeImpl {
    host_functions: Arc<RwLock<HashMap<String, HostFunction>>>,
    wasm_to_host_rx: UnboundedReceiver<WASMMessage>,
    host_to_wasm_tx: UnboundedSender<WASMMessage>,
    async_callbacks: Arc<RwLock<HashMap<u64, AsyncCallback>>>,
    next_callback_token: Arc<AtomicU64>,
}

Host Bridge for WASM communication

Fields

host_functions: Arc<RwLock<HashMap<String, HostFunction>>>

Registry of host functions exported to WASM

wasm_to_host_rx: UnboundedReceiver<WASMMessage>

Channel for receiving messages from WASM

host_to_wasm_tx: UnboundedSender<WASMMessage>

Channel for sending messages to WASM

async_callbacks: Arc<RwLock<HashMap<u64, AsyncCallback>>>

Active async callbacks

next_callback_token: Arc<AtomicU64>

Next callback token

Implementations

impl HostBridgeImpl

pub fn new() -> Self

Create a new host bridge

pub async fn register_host_function( &self, name: &str, signature: FunctionSignature, callback: HostFunctionCallback, ) -> BridgeResult<()>

Register a host function to be exported to WASM

pub async fn register_async_host_function( &self, name: &str, signature: FunctionSignature, callback: AsyncHostFunctionCallback, ) -> BridgeResult<()>

Register an async host function

pub async fn call_host_function( &self, function_name: &str, args: Vec<Bytes>, ) -> BridgeResult<Bytes>

Call a host function from WASM

pub async fn send_to_wasm(&self, message: WASMMessage) -> BridgeResult<()>

Send a message to WASM

pub async fn receive_from_wasm(&mut self) -> Option<WASMMessage>

Receive a message from WASM (blocking)

pub async fn create_async_callback( &self, message_id: String, ) -> (AsyncCallback, u64)

Create async callback

pub async fn get_callback(&self, token: u64) -> Option<AsyncCallback>

Get callback by token

pub async fn get_host_functions(&self) -> Vec<String>

Get all registered host functions

pub async fn unregister_host_function(&self, name: &str) -> bool

Unregister a host function

pub async fn clear(&self)

Clear all registered functions

Trait Implementations

impl Debug for HostBridgeImpl

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

Formats the value using the given formatter.

impl Default for HostBridgeImpl

fn default() -> Self

Returns the “default value” for a type.