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EvalSite

sim_lib_server

Trait EvalSite 

Source 
pub trait EvalSite: Send + Sync {
    // Required methods
    fn site_kind(&self) -> &'static str;
    fn address(&self) -> &ServerAddress;
    fn codecs(&self) -> &[Symbol];
    fn answer(&self, cx: &mut Cx, frame: ServerFrame) -> Result<ServerFrame>;
    fn as_any(&self) -> &dyn Any;

    // Provided methods
    fn answer_with_timeout(
        &self,
        cx: &mut Cx,
        frame: ServerFrame,
        _timeout: Option<Duration>,
    ) -> Result<ServerFrame> { ... }
    fn close_connection(&self, _cx: &mut Cx) -> Result<()> { ... }
    fn stream(
        &self,
        cx: &mut Cx,
        frame: ServerFrame,
        sink: &mut dyn StreamSink,
    ) -> Result<()> { ... }
    fn as_eval_fabric(&self) -> Option<&dyn EvalFabric> { ... }
}
Expand description

A request-answering eval endpoint: it accepts server frames and produces reply frames, optionally streaming or exposing an EvalFabric.

Required Methods§

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fn site_kind(&self) -> &'static str

Returns a short label naming the kind of site.

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fn address(&self) -> &ServerAddress

Returns the address this site answers at.

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fn codecs(&self) -> &[Symbol]

Returns the codecs this site can decode and encode.

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fn answer(&self, cx: &mut Cx, frame: ServerFrame) -> Result<ServerFrame>

Answers frame, returning the reply frame.

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fn as_any(&self) -> &dyn Any

Returns the site as &dyn Any for downcasting.

Provided Methods§

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fn answer_with_timeout( &self, cx: &mut Cx, frame: ServerFrame, _timeout: Option<Duration>, ) -> Result<ServerFrame>

Answers frame with an optional deadline. Defaults to EvalSite::answer.

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fn close_connection(&self, _cx: &mut Cx) -> Result<()>

Closes any connection backing the site. Defaults to a no-op.

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fn stream( &self, cx: &mut Cx, frame: ServerFrame, sink: &mut dyn StreamSink, ) -> Result<()>

Streams the answer to frame into sink. The default path answers once and emits a single chunk followed by end.

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fn as_eval_fabric(&self) -> Option<&dyn EvalFabric>

Returns this site as an EvalFabric when it backs one. Defaults to None.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§