v0.3.2-pre.007

crates/ksp-store-postgres-lib/src/lib.rs

@@ -1,5 +1,5 @@
 // file: crates/ksp-store-postgres-lib/src/lib.rs
-// version: 4
+// version: 5
 
 #![warn(missing_docs)]
 #![deny(unreachable_pub)]
@@ -7,9 +7,10 @@
 
 //! Official PostgreSQL backend implementation for KSP Store.
 //!
-//! `0.3.2-pre.006` owns the physical `tokio-postgres` connection, bounded
-//! Deadpool pool, explicit Rustls TLS policy and private KSP migration/bootstrap
-//! engine. Business persistence remains absent from this foundation release.
+//! `0.3.2-pre.007` owns the physical `tokio-postgres` connection, bounded
+//! Deadpool pool, explicit Rustls TLS policy, private KSP migration/bootstrap
+//! engine and safe lightweight health/readiness probe. Business persistence
+//! remains absent from this foundation release.
 //!
 //! This crate depends on `ksp-store-api` and never on `ksp-store-lib`. The
 //! common facade consumes only this crate's narrow backend bridge and never
@@ -17,6 +18,7 @@
 
 mod constants;
 mod error;
+mod health;
 mod migration;
 mod runtime;
 
@@ -26,6 +28,10 @@ pub use self::error::PostgresBackendError;
 pub use self::error::PostgresBackendErrorKind;
 /// Opaque physical PostgreSQL backend owning its connection pool.
 pub use self::runtime::PostgresBackend;
+/// Safe PostgreSQL readiness projection returned through the backend bridge.
+pub use self::runtime::PostgresBackendHealthSnapshot;
+/// Safe PostgreSQL pool counter projection returned through the backend bridge.
+pub use self::runtime::PostgresBackendRuntimeSnapshot;
 /// Physical PostgreSQL settings bridge consumed only by the backend crate.
 pub use self::runtime::PostgresBackendSettings;
 /// TLS mode accepted by the physical PostgreSQL settings bridge.
@@ -33,7 +39,15 @@ pub use self::runtime::PostgresBackendTlsMode;
 
 /// Crate-owned tracing target for PostgreSQL backend behavior.
 pub(crate) use self::constants::TRACING_TARGET;
+/// Private bounded health probe consumed by the physical backend runtime.
+pub(crate) use self::health::probe_health;
 /// Private migration/bootstrap runner consumed by the physical backend runtime.
 pub(crate) use self::migration::bootstrap;
+/// Current embedded migration version consumed by the private health probe.
+pub(crate) use self::migration::current_migration_version;
+/// Private Deadpool error mapper shared with the health probe.
+pub(crate) use self::runtime::map_pool_error;
+/// Private Deadpool status projector shared with the health probe.
+pub(crate) use self::runtime::runtime_snapshot_from_status;
 
 const _: &str = crate::TRACING_TARGET;