Struct DirectEmbeddedChannelBackend 

pub struct DirectEmbeddedChannelBackend;

The channel backend EmbeddedConfig::new installs by default — and it REFUSES every publish.

Embedded mode has no in-process bus behind it. That absence is deliberate and recorded: it is seam B1, “Embedded/frame-conv integration”, in docs/stack-review/liminal-ledger.md, which makes shared-scheduler construction on the liminal core crate the blessed path and leaves this backend as a labelled seam until then.

What it must NOT be is a seam that lies. It used to discard the message and return PressureResponse::Accept, so every embedded publish reported success while nothing was delivered to anyone. It now returns SdkError::Unwired naming the B1 seam and EmbeddedConfig::with_channel_backend, which is how a caller installs a backend that genuinely delivers.

Trait Implementations

impl Clone for DirectEmbeddedChannelBackend

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DirectEmbeddedChannelBackend

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

Formats the value using the given formatter.

impl Default for DirectEmbeddedChannelBackend

fn default() -> Self

Returns the “default value” for a type.

impl EmbeddedChannelBackend for DirectEmbeddedChannelBackend

fn publish( &self, message: &dyn EmbeddedChannelMessage, ) -> Result<PressureResponse, SdkError>

Publishes a typed message reference without protocol framing or wire encoding.