Enum CountedWriteError 

#[non_exhaustive]
pub enum CountedWriteError<E> {
    Encoding(OneShotError),
    Sink {
        error: E,
        committed: usize,
    },
    WriteZero {
        committed: usize,
    },
    InvalidCount {
        reported: usize,
        offered: usize,
        committed: usize,
    },
    Backend {
        fault: BackendFault,
        committed: usize,
    },
}

Failure from exact-progress counted-sink encoding.

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.

Encoding(OneShotError)

Encoding preflight failed before the sink was called.

Sink

The sink rejected a call without accepting bytes from that call.

Fields

error: E

Sink-specific error.

committed: usize

Exact bytes accepted by successful prior calls.

WriteZero

The sink accepted zero bytes from a non-empty call.

Fields

committed: usize

Exact bytes accepted by successful prior calls.

InvalidCount

The sink violated its count contract.

Fields

reported: usize

Count reported by the sink.

offered: usize

Bytes offered to the sink.

committed: usize

Exact bytes accepted before the invalid report.

Backend

A validated internal output invariant failed.

Fields

fault: BackendFault

Internal backend failure classification.

committed: usize

Exact bytes accepted by successful prior calls.

Implementations

impl<E> CountedWriteError<E>

pub const fn committed(&self) -> usize

Returns the exact committed byte count before failure.

Trait Implementations

impl<E: Debug> Debug for CountedWriteError<E>

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

Formats the value using the given formatter.

impl<E: Display> Display for CountedWriteError<E>

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

Formats the value using the given formatter.

impl<E: Error + 'static> Error for CountedWriteError<E>

Available on crate feature std only.

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.