Enum WalFlushStepOutcome 

pub enum WalFlushStepOutcome {
    NotNeeded,
    Flushed {
        manifest_head_seq: ChangeSeq,
    },
    AlreadyPublished {
        attempted_seq: ChangeSeq,
        current_manifest_no: ManifestNo,
    },
    RetriesExhausted {
        observed_head_seq: ChangeSeq,
    },
}

What the WAL-flush part of a maintenance step did.

Variants

NotNeeded

The tail was below the threshold, so there was nothing to flush.

Flushed

The step flushed the WAL tail and advanced the metadata root.

Fields

manifest_head_seq: ChangeSeq

Sequence covered by the published manifest.

AlreadyPublished

The step did not update the root because it already referenced a different manifest.

Fields

attempted_seq: ChangeSeq

Sequence this step attempted to flush through.

current_manifest_no: ManifestNo

Manifest the root currently references.

RetriesExhausted

Concurrent updates prevented every attempt from publishing. Nothing was flushed, and a later step can try again.

Fields

observed_head_seq: ChangeSeq

Head sequence observed before the step ran.

Trait Implementations

impl Clone for WalFlushStepOutcome

fn clone(&self) -> WalFlushStepOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WalFlushStepOutcome

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WalFlushStepOutcome

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for WalFlushStepOutcome

impl PartialEq for WalFlushStepOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for WalFlushStepOutcome

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WalFlushStepOutcome