Module db 

Host database integration for sync bookkeeping.

coven owns three bookkeeping tables — sync_cursors, sync_state, cloud_outbox — created by applying MIGRATION_SQL to the host’s database. The host implements SyncBookkeeping (coven calls these during a sync cycle) and RawDbHandle (the session extension attaches to the host’s write connection). coven imposes no SQLite driver this way.

Structs

DbError

An error from the host’s bookkeeping implementation.

OutboxEntry

A pending cloud blob operation from the cloud_outbox table.

Enums

OutboxOperation

Type of cloud blob operation.

Constants

MIGRATION_SQL

SQL that creates coven’s bookkeeping tables. The host applies this alongside its own schema migration. Idempotent (IF NOT EXISTS).

Traits

RawDbHandle

Access to the host’s raw write connection, which the session extension attaches to. The same connection the host writes through.

SyncBookkeeping

Bookkeeping the host’s database performs against coven’s tables. coven calls these during a sync cycle; the host’s implementation runs the SQL.

SyncDb

The full database surface coven needs from the host: bookkeeping plus the raw write handle. Blanket-implemented for any type providing both.