Struct KernelEventLog 

pub struct KernelEventLog<'conn> { /* private fields */ }

Append-only writer for the kernel_events table.

Maintains a monotone seq counter per KernelEventLog instance (per-session / per-sidecar lifetime). The counter is not persisted across restarts; callers that need stable cross-restart ordering should use the SQLite id column (autoincrement) instead.

Implementations

impl<'conn> KernelEventLog<'conn>

pub fn new(db: &'conn Connection) -> Self

Create a writer that shares the given (already-migrated) connection. Call ensure_kernel_events_table before constructing this.

Starts seq at 0 — suitable for empty in-memory test DBs. Production callers should prefer Self::with_next_seq after [peek_next_seq].

pub fn with_next_seq(db: &'conn Connection, next_seq: u64) -> Self

Resume appending after restart using the next free sequence number.

pub fn peek_next_seq(db: &Connection) -> Result<u64>

Next seq value to assign (max existing + 1, or 0 when empty).

pub fn append(&mut self, event: KernelEvent) -> Result<()>

Append one event. The ts_ms is the Unix time in milliseconds at call time.

pub fn append_batch( &mut self, events: impl IntoIterator<Item = KernelEvent>, ) -> Result<()>

Append multiple events in a single transaction.

pub fn load_turn_events( &self, turn_id: &str, ) -> Result<Vec<KernelEventEnvelope>>

Load all events for a given turn_id in sequence order. Used by Phase 3b replay and completeness verification tests.