Struct RoundRobinCounter 

pub struct RoundRobinCounter(/* private fields */);

Thread-safe, Clone-able counter for distributing reads across replicas.

Wrap in Arc on your AppState to share across handlers.

Implementations

impl RoundRobinCounter

pub fn new() -> Self

pub fn next(&self, len: usize) -> usize

Returns the next replica index given len replicas. Returns 0 for empty pools.

Trait Implementations

impl Clone for RoundRobinCounter

fn clone(&self) -> RoundRobinCounter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoundRobinCounter

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

Formats the value using the given formatter.

impl Default for RoundRobinCounter

fn default() -> RoundRobinCounter

Returns the “default value” for a type.