Struct ChainFreshness 

pub struct ChainFreshness { /* private fields */ }

Shared liveness of the node’s chain reads. Cloned into the blacklist watcher (which stamps it) and the serve and probe handlers (which read it); every clone shares one cell.

Implementations

impl ChainFreshness

pub fn new(grace: Duration) -> Self

A freshness handle with the given grace window, not yet stamped (so it reads stale until the boot enumeration or the first successful tick stamps it).

pub fn stamp(&self)

Record that a chain read just succeeded (a successful blacklist poll tick, or the clean boot enumeration). Stamps the current wall clock.

pub fn is_stale(&self) -> bool

Has the node been unable to reach the chain for longer than the grace window? A 0 cell is stale by definition — either never stamped, or stamped from a pre-epoch (or unreadable) clock, which the wall-clock reader also reports as 0; both fold into this one fail-closed branch, because a node with no confirmed-fresh compliance state has nothing sound to serve against.

Trait Implementations

impl Clone for ChainFreshness

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChainFreshness

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

Formats the value using the given formatter.