Struct Breaker 

pub struct Breaker { /* private fields */ }

The circuit breaker around a digester that can fail.

Counted, not timed: a wall clock inside a decision would break replay, and “three failures in a row” is a fact the caller can reproduce. Opening the breaker is not an error — it means the pipeline stops asking and hands back the source, which is the answer that was always correct and merely more expensive to read.

Implementations

impl Breaker

pub fn new(limit: u32) -> Breaker

pub fn verdict(&self) -> BreakerVerdict

pub fn succeeded(&mut self)

One digest came back. The count resets, because the failures this breaker cares about are consecutive ones: an intermittent provider is a different condition from a broken one.

pub fn failed(&mut self)

pub fn consecutive_failures(&self) -> u32

Trait Implementations

impl Clone for Breaker

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 Breaker

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

Formats the value using the given formatter.

impl Eq for Breaker

impl PartialEq for Breaker

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Breaker