Struct LifecycleTrace 

pub struct LifecycleTrace { /* private fields */ }

Request-scoped lifecycle capture state.

Construct this once when request state is created, freezing the feature gate for the lifetime of that request.

Implementations

impl LifecycleTrace

pub fn new(enabled: bool) -> Self

Construct capture state explicitly, primarily for integrations and tests.

pub fn from_request_id_with_role( request_id: impl Into<String>, role: LifecycleOperationRole, ) -> Self

Construct worker capture state with its statically configured role.

pub fn frontend_request_without_session(request_id: impl Into<String>) -> Self

Construct a frontend trace before request parsing has made a session ID available.

pub const fn is_enabled(&self) -> bool

Whether lifecycle spans are emitted for this request.

pub fn start_request(&self) -> LifecycleRequest

Start the request root and return a recorder shared with all terminal paths.

pub fn start(&self, stage: LifecycleStage) -> Span

Start a duration-only lifecycle span.

pub fn start_worker_response_streaming(&self) -> Span

Start the worker response-streaming boundary with its configured disaggregation role encoded in the timing span name.

pub fn start_worker_operation(&self) -> Span

Start the worker operation boundary for a disaggregated role.

This bounds the Dynamo runtime’s worker-side operation. It intentionally includes any backend-internal queueing or decode-side KV wait.

Trait Implementations

impl Clone for LifecycleTrace

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LifecycleTrace

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for LifecycleTrace

impl PartialEq for LifecycleTrace

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for LifecycleTrace