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BoundChain

jammi_server::runtime

Struct BoundChain 

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pub struct BoundChain { /* private fields */ }
Expand description

An AssembledChain whose gRPC + Flight SQL listener is bound and held live, ready to serve. Returned by AssembledChain::bind. The listener is open from bind through serve, so Self::addr reports the ACTUAL bound address (the real port even for a :0 assembly) and the port is never observably free between resolving it and serving on it.

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impl BoundChain

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pub fn addr(&self) -> SocketAddr

The ACTUAL address the listener is bound to. For a chain assembled at :0, this is the ephemeral port the kernel assigned — resolved at AssembledChain::bind and held live until serve.

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pub fn mounted(&self) -> &[String]

The ledger of mounted service names, in mount order. Read for a startup log; carried through the bind unchanged.

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pub async fn serve_with_shutdown( self, shutdown: impl Future<Output = ()> + Send + 'static, ) -> Result<(), ServerError>

Serve the bound chain on its already-open listener until shutdown resolves. Consumes self, keeping the training-worker guard alive for the whole serve loop.

The transport layers apply HERE, in this order: accept_http1(true) then MetricsLayer (outermost — observes every request by method path before routing) then GrpcWebTrailersLayer (wraps GrpcWebLayer, repairing the trailers-only error response into the in-body trailer frame a gRPC-web client requires) then GrpcWebLayer. Every service mounted via AssembledChain::mount, engine or downstream, inherits gRPC-web framing

  • trailer repair with no per-service opt-in.

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