Module scheduler 

Host-side tokio-backed scheduler driver.

Wraps the runtime-free uni_plugin::scheduler::Scheduler primitive in a SchedulerHost that:

• calls Scheduler::tick_at every tick_interval,
• looks up the BackgroundJobProvider for each due job from the host’s PluginRegistry,
• dispatches each provider’s execute on tokio::task::spawn_blocking (the trait method is sync; providers that need async work Handle::current().block_on(...) inside),
• reports lifecycle transitions to the configured SchedulerPersistence backend, and
• drains all in-flight runs on shutdown via the supplied ShutdownHandle broadcast.

Per the M11 plan, the durable backend (writes through uni_system.background_jobs via the write-enabled execute_inner_query) lives downstream in uni-query; this module consumes only the SchedulerPersistence trait.

Structs

SchedulerHost

Host-side scheduler driver.

SchedulerJobHost

Concrete JobHost implementation that lets built-in background jobs reach the storage manager and (after Uni::build finishes) the host UniInner for write-mode Cypher execution.

Constants

DEFAULT_TICK_INTERVAL

Default driver tick interval — chosen to match the existing DeferralQueue ticker so the two background drivers cohabit on the same cadence.

Functions

spawn_with_memory_persistence

Convenience constructor returning a SchedulerHost backed by an in-memory persistence — used by the default Uni::build path before the host wires a durable backend.