Enum JournalRow 

pub enum JournalRow {
    Pack(Extent),
    Retired(u64),
}

One journal row, read back and interpreted.

The ordinal of a pack is its position among the Pack rows, not its row index. Tombstones are appended to the same log — that is what keeps the journal append-only — so counting raw rows would renumber every pack acked before a gc and make the ordinals a live process holds disagree with the ones the next open derives. Counting pack rows cannot: a pack row is never removed and never reordered, so a pack’s ordinal is fixed for the life of the archive.

Variants

Pack(Extent)

A pack was acked at this extent.

Retired(u64)

The pack that starts at this offset was retired: a gc found every one of its objects dead and dropped every row it had. Its bytes are still in the blob file (the blob file is append-only and nothing truncates it), but no open may ever re-queue it for indexing again.

Trait Implementations

impl Clone for JournalRow

fn clone(&self) -> JournalRow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for JournalRow

impl Debug for JournalRow

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

Formats the value using the given formatter.

impl Eq for JournalRow

impl PartialEq for JournalRow

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for JournalRow