Struct WriterFence 

pub struct WriterFence {
    pub fenced_epoch: WriterEpoch,
    pub active_epoch: WriterEpoch,
    pub active_writer: Option<String>,
    pub active_acquired_at_ms: Option<u64>,
}

The fencing event a writer session observed: the epoch the session held, the epoch that displaced it, and — when the head recorded a writer block — the winner’s label and when it acquired.

The epochs are what identifies the two parties. Writer labels are process names, so two local processes can share one (the CLI defaults writer_id to the hostname); the acquisition stamp is what tells those runs apart in a diagnostic.

Fields

fenced_epoch: WriterEpoch

Epoch the fenced session held.

active_epoch: WriterEpoch

Epoch that owns the namespace now.

active_writer: Option<String>

Writer label recorded by the winning acquirer, when known.

active_acquired_at_ms: Option<u64>

When the winning acquirer took the epoch, in Unix milliseconds, when known.

Trait Implementations

impl Clone for WriterFence

fn clone(&self) -> WriterFence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WriterFence

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

Formats the value using the given formatter.

impl Display for WriterFence

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

Formats the value using the given formatter.

impl Eq for WriterFence

impl PartialEq for WriterFence

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WriterFence