Enum ReplicatedSlot 

pub enum ReplicatedSlot<V> {
    Value {
        value: V,
        version: u64,
    },
    Tombstone {
        version: u64,
        gc_eligible_after: Option<ClusterEpoch>,
    },
}

Replicated value slot with tombstones participating in version ordering.

Variants

Value

Live value bytes or decoded value.

Fields

value: V

Stored value.

version: u64

Monotonic version.

Tombstone

Deletion marker that beats values at the same version.

Fields

version: u64

Monotonic tombstone version.

gc_eligible_after: Option<ClusterEpoch>

Epoch after which GC is allowed, once repair confirmed every backup.

Implementations

impl<V> ReplicatedSlot<V>

pub fn version(&self) -> u64

Return the slot version.

pub fn is_tombstone(&self) -> bool

Return whether this slot is a tombstone.

pub fn merge(self, other: Self) -> Self

Merge two slots: higher version wins; on ties tombstone wins.

Trait Implementations

impl<V: Clone> Clone for ReplicatedSlot<V>

fn clone(&self) -> ReplicatedSlot<V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V: Debug> Debug for ReplicatedSlot<V>

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

Formats the value using the given formatter.

impl<'de, V> Deserialize<'de> for ReplicatedSlot<V>

where V: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<V: Eq> Eq for ReplicatedSlot<V>

impl<V: PartialEq> PartialEq for ReplicatedSlot<V>

fn eq(&self, other: &ReplicatedSlot<V>) -> 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<V> Serialize for ReplicatedSlot<V>

where V: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<V: PartialEq> StructuralPartialEq for ReplicatedSlot<V>