rivetkit-core 3.0.0-preview.4

Core runtime primitives for RivetKit actor hosts
Documentation 
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use anyhow::Result;

use crate::engine_process::{EngineProcessManager, EngineResolverConfig};
use crate::registry::ServeConfig;
use crate::services_process::{SERVICES_POOL_NAME, ServicesProcessConfig, ServicesProcessManager};

/// Owns the processes RivetKit starts for a local development environment.
///
/// After the registry drains, shutdown stops Services and any Engine this host
/// spawned. An Engine reused from another host keeps its existing owner and
/// remains running. Keeping this orchestration here gives serverful and
/// serverless runtimes the same process ownership rules.
#[derive(Debug)]
pub(crate) struct DevelopmentProcessManager {
	_engine: EngineProcessManager,
	services: Option<ServicesProcessManager>,
}

impl DevelopmentProcessManager {
	pub(crate) async fn start(config: &ServeConfig) -> Result<Self> {
		let engine = EngineProcessManager::start_or_reuse(EngineResolverConfig::from_parts(
			&config.endpoint,
			config.engine_binary_path.clone(),
			config.engine_host.clone(),
			config.engine_port,
			config.engine_auto_download,
		))
		.await?;

		let services = if config.start_services {
			Some(
				ServicesProcessManager::start(ServicesProcessConfig {
					binary_path: config.services_binary_path.clone(),
					endpoint: config.endpoint.clone(),
					token: config.token.clone(),
					namespace: config.namespace.clone(),
					pool_name: SERVICES_POOL_NAME.to_owned(),
					engine_protocol_version: rivet_envoy_client::protocol::PROTOCOL_VERSION,
				})
				.await?,
			)
		} else {
			None
		};

		Ok(Self {
			_engine: engine,
			services,
		})
	}

	pub(crate) async fn shutdown(mut self) {
		if let Some(services) = self.services.take() {
			services.shutdown().await;
		}
		self._engine.shutdown().await;
	}
}