Struct WalProvenance 

pub struct WalProvenance {
    pub frame_index: usize,
    pub salt1: u32,
    pub salt2: u32,
}

Provenance for a record carved from a -wal frame: the (salt1, salt2, frame_index) log-sequence identity of the frame it came from (the LSN task #55 will formalize).

Fields

frame_index: usize

0-based position of the source frame within the -wal file.

salt1: u32

WAL header salt-1 (checkpoint generation) of the source frame.

salt2: u32

WAL header salt-2 (checkpoint generation) of the source frame.

Trait Implementations

impl Clone for WalProvenance

fn clone(&self) -> WalProvenance

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WalProvenance

impl Debug for WalProvenance

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

Formats the value using the given formatter.

impl Eq for WalProvenance

impl PartialEq for WalProvenance

fn eq(&self, other: &WalProvenance) -> 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 StructuralPartialEq for WalProvenance