Enum BitmapScanError 

pub enum BitmapScanError {
    ScanLimit,
    Cancelled,
    Source(Error),
}

Terminal signal raised by a bitmap evaluator on the bucket channel’s Err. It must be an error rather than a silent end-of-stream: the driver reads a clean end as “scanned the whole range” and advances the resume cursor to the terminus, so a budget or cancel stop has to short-circuit the try_stream! pipeline to truncate the scan at the current floor. The variant is chosen at the source, so each List handler maps it to a wire outcome with one exhaustive match.

Variants

ScanLimit

The per-request bucket-scan limit was reached: a graceful early stop. The handler ends the stream with QUERY_END_REASON_SCAN_LIMIT and the last emitted watermark as the continuation cursor.

Cancelled

The scan was cancelled (the request’s cancellation token fired). The handler ends the stream with a gRPC Cancelled status.

Source(Error)

A backend/storage fault. The handler ends the stream with a gRPC Internal status carrying this error unchanged.

Trait Implementations

impl Debug for BitmapScanError

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

Formats the value using the given formatter.

impl Display for BitmapScanError

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

Formats the value using the given formatter.

impl Error for BitmapScanError

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<Error> for BitmapScanError

fn from(err: Error) -> Self

Converts to this type from the input type.