Struct HostedRpcChannel 

pub struct HostedRpcChannel { /* private fields */ }

Per-dep channel handed to HostedRpcDep::build_stub on the worker side.

The stub holds this channel and calls HostedRpcChannel::call from each of its method bodies; the channel takes care of dep-id routing, serialization framing, and waiting for the parent’s reply.

Implementations

impl HostedRpcChannel

pub fn new(dep_id: String, transport: Arc<dyn HostedRpcTransport>) -> Self

Construct a channel that targets the dep identified by dep_id (a fully-qualified id) and uses the supplied transport.

pub fn dep_id(&self) -> &str

The fully-qualified dep id this channel routes to. Stubs almost never need this directly, but it’s exposed for diagnostics and tests.

pub fn call( &self, method_idx: u32, args: Vec<u8>, ) -> Result<Vec<u8>, HostedRpcError>

Send one method call and block until the parent replies. args are already-serialized bytes; the stub method body owns the choice of codec.

Temporal invariant — only call this while a test body is actually running. The transport assumes one HostedRpc request/reply pair per worker subprocess is in flight at a time and that the worker’s main IPC command loop is idle (it only reads Provide* / RunTest between tests). Specifically:

• Do NOT call from HostedRpcDep::build_stub — see that method’s docs for why.
• Do NOT call from background threads or detached tasks that outlive the test body — once the test returns the worker sends TestFinished and the parent’s next message will be a Provide* / RunTest, which the transport’s read side would then misinterpret as a reply.
• Do NOT call from Drop / destructor-style cleanup or any teardown hook that may fire after the test body has returned — that is just another form of “outside the test body” and has the same IPC-framing-desync risk as a detached background thread.
• Stub calls from inside the test body — directly or transitively from helpers the test body awaits/blocks on — are the supported shape.

Trait Implementations

impl Clone for HostedRpcChannel

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.