Struct VersionedCache 

pub struct VersionedCache { /* private fields */ }

A versioned cache that associates a monotonic version number with each entry.

Implementations

impl VersionedCache

pub fn new() -> Self

Create a new versioned cache.

pub fn bump_version(&mut self)

Bump the version (e.g., after a global environment change).

pub fn insert(&mut self, key: u64, val: u64)

Insert with the current version.

pub fn get(&self, key: u64) -> Option<u64>

Look up a value; returns None if the entry’s version is stale.

pub fn version(&self) -> u64

Return the current version number.

pub fn evict_stale(&mut self)

Evict all entries from a previous version.

pub fn valid_count(&self) -> usize

Return the number of valid (current-version) entries.

Trait Implementations

impl Default for VersionedCache

fn default() -> Self

Returns the “default value” for a type.