Enum WalError 

pub enum WalError {
    Io(Error),
    Encode(String),
    Decode(String),
    CrcMismatch {
        lsn: Lsn,
        expected: u32,
        actual: u32,
    },
    Truncated {
        expected: usize,
        actual: usize,
    },
    UnknownKind(u8),
    BadSegmentHeader(&'static str),
    Malformed(String),
    AlreadyOpen {
        dir: PathBuf,
    },
    Poisoned,
}

Failure modes for WAL operations.

Errors from the append path are surfaced through [WalSink::append] / [WalSink::commit] / [WalSink::flush] (defined in wal.rs, not yet implemented). Errors from replay are surfaced through WalReplay. The distinction matters because a recorder error needs to poison the engine’s mutex critical section, whereas a replay error happens at boot, before queries are accepted.

Variants

Io(Error)

Encode(String)

Decode(String)

CrcMismatch

Fields

lsn: Lsn

expected: u32

actual: u32

Truncated

Fields

expected: usize

actual: usize

UnknownKind(u8)

BadSegmentHeader(&'static str)

Malformed(String)

AlreadyOpen

Fields

dir: PathBuf

Poisoned

Trait Implementations

impl Debug for WalError

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

Formats the value using the given formatter.

impl Display for WalError

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

Formats the value using the given formatter.

impl Error for WalError

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 WalError

fn from(source: Error) -> Self

Converts to this type from the input type.