17 lines
737 B
Rust
17 lines
737 B
Rust
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//! Datastore stats provider for the runtime dashboard.
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//!
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//! The trait returns a pre-serialized JSON string so that `runtime-dashboard`
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//! has no compile-time dependency on `swactor-datastore` (which would create a
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//! circular dependency since `swactor-datastore[node]` depends on us).
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//!
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//! The `swactor-datastore` crate implements this trait in its `node` feature.
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/// Trait for providing datastore stats to the dashboard.
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///
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/// Implementations capture a point-in-time snapshot as serialized JSON.
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/// The dashboard polls this every ~200ms via SSE.
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pub trait DatastoreStatsProvider: Send + Sync {
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/// Return a JSON-serialized datastore snapshot, or `None` if unavailable.
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fn snapshot_json(&self) -> Option<String>;
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}
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