Struct Daemon 

pub struct Daemon { /* private fields */ }

The main daemon orchestrator.

The daemon manages components, runs the event loop, and coordinates startup and shutdown. It is constructed via DaemonBuilder.

Event Loop

The daemon runs a simple event loop:

1. Wait for an event on the bus
2. Dispatch the event to all components (in registration order)
3. Components may emit new events in response
4. Repeat until ShutdownRequested is received

Events emitted during handling are queued and processed in subsequent iterations, ensuring the loop eventually drains.

Implementations

impl Daemon

pub fn builder(settings: Settings) -> DaemonBuilder

Create a new daemon builder.

pub fn handle(&self) -> DaemonHandle

Get a clone of the daemon handle.

The handle can be used to emit events, access settings, etc.

pub async fn start_components(&mut self) -> Result<()>

Start all components.

This must be called before run_event_loop(). It initializes all registered components with the daemon handle.

pub async fn run_event_loop(&mut self) -> Result<()>

Run the daemon event loop.

This processes events until a ShutdownRequested event is received. Components must be started first via start_components().

pub async fn stop_components(&mut self)

Stop all components.

This performs graceful shutdown of all components.

pub async fn run(self) -> Result<()>

Run the daemon.

This is a convenience method that starts components, runs the event loop, and handles shutdown. It does not return until the daemon is shut down.