Enum EngineSeamError 

pub enum EngineSeamError {
    NonResident {
        workflow_id: WorkflowId,
    },
    Terminal {
        workflow_id: WorkflowId,
    },
    UnknownWorkflow {
        workflow_id: WorkflowId,
    },
    Delivery {
        reason: String,
    },
    ChildSpawn {
        reason: String,
    },
    TimerWheel {
        reason: String,
    },
    ChildTermination {
        reason: String,
    },
    Recorder {
        reason: String,
    },
}

Errors returned by the engine seam.

Variants

NonResident

The target workflow has no current live process.

Fields

workflow_id: WorkflowId

Workflow that had no current live process.

Terminal

The target workflow is terminal.

Fields

workflow_id: WorkflowId

Terminal workflow identifier.

UnknownWorkflow

The target workflow is unknown to AE.

Fields

workflow_id: WorkflowId

Unknown workflow identifier.

Delivery

AE could not deliver a mailbox message.

Fields

reason: String

Human-readable delivery failure reason.

ChildSpawn

AE could not spawn a linked child workflow.

Fields

reason: String

Human-readable child-spawn failure reason.

TimerWheel

A timer-wheel operation was refused: arming, disarming, or — since the wheel gained a stand-down latch — the durable append that a fire or a cancellation would otherwise have made after this engine’s wheel was torn down.

That third case is not an arm or a disarm and is the reason this doc no longer says it is. Callers that need to tell an orderly stand-down from a genuine wheel fault classify on this variant (crate::runtime::nif_timer_fire::is_wheel_teardown); the reason string says which of the three happened, in words that are true of that one — a refused cancel does not claim anything fired.

Fields

reason: String

Human-readable timer-wheel failure reason.

ChildTermination

AE could not terminate a linked child process.

Fields

reason: String

Human-readable child termination failure reason.

Recorder

AD’s single Recorder path could not record the event.

Fields

reason: String

Human-readable recorder failure reason.

Trait Implementations

impl Clone for EngineSeamError

fn clone(&self) -> EngineSeamError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EngineSeamError

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

Formats the value using the given formatter.

impl Display for EngineSeamError

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

Formats the value using the given formatter.

impl Eq for EngineSeamError

impl Error for EngineSeamError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<EngineSeamError> for ChildWorkflowError

fn from(source: EngineSeamError) -> Self

Converts to this type from the input type.

impl From<EngineSeamError> for QueryError

fn from(source: EngineSeamError) -> Self

Converts to this type from the input type.

impl From<EngineSeamError> for TimerServiceError

fn from(source: EngineSeamError) -> Self

Converts to this type from the input type.

impl PartialEq for EngineSeamError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EngineSeamError