Enum WalError 

pub enum WalError {
    Io(Error),
    ChecksumMismatch {
        lsn: u64,
        expected: u32,
        actual: u32,
    },
    InvalidMagic {
        offset: u64,
        expected: u32,
        actual: u32,
    },
    UnsupportedVersion {
        version: u16,
        supported: u16,
    },
    UnknownRequiredRecordType {
        record_type: u32,
        lsn: u64,
    },
    PayloadTooLarge {
        size: usize,
        max: usize,
    },
    Sealed,
    AlignmentViolation {
        context: &'static str,
        required: usize,
        actual: usize,
    },
    LockPoisoned {
        context: &'static str,
    },
    EncryptionError {
        detail: String,
    },
    DwbOffNotOpenable,
    CorruptRecord {
        lsn: u64,
        detail: String,
    },
    InvalidPayload {
        detail: String,
    },
}

Errors produced by the WAL subsystem.

Variants

Io(Error)

I/O error from the underlying file operations.

ChecksumMismatch

CRC32C checksum mismatch during read/replay.

Fields

lsn: u64

expected: u32

actual: u32

InvalidMagic

Record header has an invalid magic number — file is corrupted or not a WAL.

Fields

offset: u64

expected: u32

actual: u32

UnsupportedVersion

WAL format version is not supported by this binary.

Fields

version: u16

supported: u16

UnknownRequiredRecordType

Unknown required record type encountered during replay. Optional unknown record types are safely skipped.

Fields

record_type: u32

lsn: u64

PayloadTooLarge

Write payload exceeds maximum record size.

Fields

size: usize

max: usize

Sealed

Attempted to write to a WAL that has been closed or is in error state.

AlignmentViolation

Alignment violation — O_DIRECT requires aligned buffers and offsets.

Fields

context: &'static str

required: usize

actual: usize

LockPoisoned

A mutex was poisoned (another thread panicked while holding the lock).

Fields

context: &'static str

EncryptionError

Encryption or decryption failed.

Fields

detail: String

DwbOffNotOpenable

DoubleWriteBuffer::open was called with DwbMode::Off. Callers that want the DWB disabled must not call open at all.

CorruptRecord

Record payload failed structural validation (truncation, bad length prefix, invalid UTF-8, etc.). Distinct from WalError::ChecksumMismatch — the bytes passed CRC but the payload’s own framing is wrong.

Fields

lsn: u64

detail: String

InvalidPayload

Record payload is structurally invalid at parse time, before the surrounding LSN context is known (e.g., anchor payload decoded from a byte slice during unit-level use).

Fields

detail: String

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.