Rust lifecycle

Typed maker tables, concurrent futures, immutable assembly, Tokio servers, and bounded drain.

When to use

Use this page when implementing maker hooks, owning resources, or diagnosing startup and shutdown.

ServiceMakers::default is mutated by custom_makers_init before invocation.
Function and infrastructure maker groups run concurrently with a cancellable child context.
GeneratedService::new binds streams and connectors; run opens the app and waits for termination.
ServiceApp::stop applies shutdown_timeout and drains HTTP/gRPC before graph resources.

ConfigurationLoad graph configResolve typed service, stream, connector, and endpoint settings.

FactoriesServiceMakers::defaultInstall defaults, then run custom_makers_init and custom_functions_init.

ConstructionInvoke makers onceCreate infrastructure and long-lived functions in parallel.

GraphBuild and bindConstruct streams, callers, endpoint consumers, and transports.

StartOpen admission lastStart dependencies and Sinks before Sources and servers.

SignalStop requestedCreate one deadline from shutdownTimeout.

AdmissionListeners and SourcesReject new root work and drain accepted calls.

GraphNested workKeep pools, storage, Sinks, and clients alive.

ResourcesPools, storage, SinksRelease graph dependencies in safe order.

TelemetryFlush and releaseMetrics, traces, and logs stop last.

Generated extension points and runtime-owned lifecycle boundaries.

PropertyTypeDescription

ServiceMakersgenerated struct

Typed Arc closures for factories.

custom_makers_inituser function

Mutates makers before async initialization.

GeneratedService::newconstruction

Builds and binds without opening admission.

ServiceApp::startactivation

Starts Sinks before Sources and servers.

ServiceApp::stopdrain

Applies service timeout and records telemetry.

configure -> make once -> bind -> start -> admit -> drain -> stop