Struct InstanceCache 

pub struct InstanceCache { /* private fields */ }

Cache of previously resolved instances.

Implementations

impl InstanceCache

pub fn new() -> Self

Create an empty cache.

pub fn insert(&mut self, key: CacheKey, instance_name: Name)

Insert a successful resolution into the cache.

pub fn get(&mut self, key: &CacheKey) -> Option<&Name>

Look up a cached resolution.

pub fn hits(&self) -> u64

Return the number of cache hits.

pub fn misses(&self) -> u64

Return the number of cache misses.

pub fn total_queries(&self) -> u64

Return total queries served.

pub fn clear(&mut self)

Clear all cached entries.

pub fn len(&self) -> usize

Return the number of cached entries.

pub fn is_empty(&self) -> bool

Return whether the cache is empty.

Trait Implementations

impl Debug for InstanceCache

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

Formats the value using the given formatter.

impl Default for InstanceCache

fn default() -> InstanceCache

Returns the “default value” for a type.