Enum Tail 

pub enum Tail {
    Clean,
    Torn {
        at: usize,
    },
    Corrupt {
        at: usize,
        later_lsn: Lsn,
    },
}

How a scanned segment ended.

Variants

Clean

The valid prefix is followed by zeros.

Torn

The valid prefix is followed by bytes that never formed a valid frame: a write that never completed. Safe to discard.

Fields

at: usize

Corrupt

A frame after the damaged one is valid: records that were durable have been lost from the middle of the log.

Fields

at: usize

later_lsn: Lsn

Trait Implementations

impl Clone for Tail

fn clone(&self) -> Tail

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tail

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

Formats the value using the given formatter.

impl PartialEq for Tail

fn eq(&self, other: &Tail) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Tail

impl Eq for Tail

impl StructuralPartialEq for Tail