Enum Presence 

pub enum Presence {
    Present(u64),
    Absent,
    Fault,
}

A memoised existence answer for a hash against the configured origins.

Variants

Present(u64)

The origin holds the blob; carries the total byte size for the probe’s total_bytes.

Absent

No configured origin holds the blob (a HEAD 404, an unknown size, or no origin — an authoritative “don’t advertise”).

Fault

The probe could not get an authoritative answer: a transport error or a timeout (a HEAD overrun). Distinct from Absent on purpose — a caller that would otherwise sign an authoritative NotFound must not do so on a fault, and a fault is worth memoising under its own TTL so a failing origin is not re-probed on every request for its namespace.

Implementations

impl Presence

pub const fn size(self) -> Option<u64>

The probe answer this presence yields: Some(size) advertises has_blob: true, None leaves it false.

Trait Implementations

impl Clone for Presence

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Presence

impl Debug for Presence

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

Formats the value using the given formatter.

impl Eq for Presence

impl From<Presence> for OriginPresence

fn from(presence: Presence) -> Self

Converts to this type from the input type.

impl PartialEq for Presence

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Presence