Enum EvictionPolicy 

pub enum EvictionPolicy {
    LRU,
    LFU,
    TTL,
}

Determines which entry is chosen for eviction when the cache is full.

Variants

LRU

Evict the entry that was accessed least recently (minimum last_accessed_secs).

LFU

Evict the entry that has been accessed fewest times (access_count), with last_accessed_secs as a tie-breaker (older access loses).

TTL

Evict expired entries first. If no entries are expired, fall back to LRU eviction.

Trait Implementations

impl Clone for EvictionPolicy

fn clone(&self) -> EvictionPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EvictionPolicy

impl Debug for EvictionPolicy

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

Formats the value using the given formatter.

impl Eq for EvictionPolicy

impl PartialEq for EvictionPolicy

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EvictionPolicy