Struct RuntimeStateMachine 

pub struct RuntimeStateMachine { /* private fields */ }

Concrete runtime state machine with run tracking.

Implementations

impl RuntimeStateMachine

pub fn new() -> Self

Create a new state machine in the Initializing state.

pub fn from_state(state: RuntimeState) -> Self

Create from an existing state (for recovery).

pub fn state(&self) -> RuntimeState

Get the current state.

pub fn current_run_id(&self) -> Option<&RunId>

Get the current run ID (if running).

pub fn is_idle(&self) -> bool

Check if the runtime is idle.

pub fn is_running(&self) -> bool

Check if the runtime is running.

pub fn can_process_queue(&self) -> bool

Check if the runtime can process queued inputs.

True for Idle and Retired (Retired drains existing queue).

pub fn transition( &mut self, next: RuntimeState, ) -> Result<RuntimeState, RuntimeStateTransitionError>

Transition to a new state.

pub fn start_run( &mut self, run_id: RunId, ) -> Result<(), RuntimeStateTransitionError>

Transition to Running with a specific run ID.

Records the pre-run state so complete_run() can return to it (e.g. Retired → Running → Retired for queue drain).

pub fn complete_run(&mut self) -> Result<RunId, RuntimeStateTransitionError>

Transition from Running back to the pre-run state (run completed).

Returns to Retired if the run was started from Retired (drain mode), otherwise returns to Idle.

pub fn initialize(&mut self) -> Result<(), RuntimeStateTransitionError>

Mark as initialized (Initializing → Idle).

pub fn reset_to_idle( &mut self, ) -> Result<Option<RuntimeState>, RuntimeStateTransitionError>

Reset the runtime back to Idle after lifecycle cleanup.

Allowed only when not Running. Revives a retired runtime so callers can keep using the same logical runtime instance after abandoning queued work.

Trait Implementations

impl Clone for RuntimeStateMachine

fn clone(&self) -> RuntimeStateMachine

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RuntimeStateMachine

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

Formats the value using the given formatter.

impl Default for RuntimeStateMachine

fn default() -> Self

Returns the “default value” for a type.