Enum CrawlerEvent 

#[non_exhaustive]
pub enum CrawlerEvent {
    PersistState {
        is_migrating: bool,
    },
    RequestFinished(HandledRequest),
    RequestFailed {
        request: Arc<Request>,
        error: String,
    },
    SystemInfo(SystemSnapshot),
    Aborting,
    Exiting,
}

A control-plane event emitted during a crawler run.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

PersistState

Requests that subscribers persist crawler state.

Fields

is_migrating: bool

Whether persistence is occurring before migration.

RequestFinished(HandledRequest)

Reports a terminal request snapshot.

RequestFailed

Reports a request processing failure.

Fields

request: Arc<Request>

The request that failed.

error: String

A displayable error description.

SystemInfo(SystemSnapshot)

Reports current host resource usage.

Aborting

Indicates that immediate cancellation has begun.

Exiting

Indicates that the crawler is exiting.

Trait Implementations

impl Clone for CrawlerEvent

fn clone(&self) -> CrawlerEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CrawlerEvent

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

Formats the value using the given formatter.