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EngineHandle

oxios_kernel::engine

Struct EngineHandle 

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

Shared, hot-swappable reference to the active OxiosEngine.

Wraps RwLock<Arc<OxiosEngine>> so that:

  • Writers (EngineApi) can atomically replace the engine on config change
  • Readers (AgentRuntime) always get the current engine at execution time

§Cost

Rebuilding OxiosEngine is cheap: OxiBuilder::new().with_builtins().build() populates registries from static model_db data (~1μs, no I/O, no network).

§Concurrency

  • parking_lot::RwLock is not async-aware, but engine swap only occurs on explicit user action (Web UI / CLI config change) — never in a hot path.
  • Agent execution reads the engine once at the start of execute() and uses the same Arc<OxiosEngine> for the entire run (consistent within one execution).

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impl EngineHandle

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pub fn new(engine: Arc<OxiosEngine>) -> Self

Create a new handle wrapping the given engine.

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pub fn get(&self) -> Arc<OxiosEngine> ⓘ

Get a snapshot of the current engine.

The returned Arc is stable — it won’t change even if another thread calls swap() concurrently.

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pub fn swap(&self, new_engine: OxiosEngine)

Atomically replace the engine with a new one.

Callers should rebuild OxiosEngine with updated credentials/model before calling this.

Trait Implementations§

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impl Debug for EngineHandle

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

Formats the value using the given formatter. Read more

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