Struct jormungandr::blockchain::reference_cache::RefCache

pub struct RefCache {
    inner: Arc<Mutex<LruCache<HeaderHash, Arc<Ref>>>>,
}

object that store the Ref in a cache. Every time a Ref is accessed its TTL will be reset. Once the TTL of Ref has expired it may be removed from the cache.

The cache expired Ref will be removed only if the Ref’s TTL has expired and purge has been called and has completed.

Fields

inner: Arc<Mutex<LruCache<HeaderHash, Arc<Ref>>>>

Implementations

impl RefCache

pub fn new(cap: usize) -> Self

create a new RefCache.

pub async fn insert(&self, key: HeaderHash, value: Arc<Ref>)

return a future that will attempt to insert the given Ref in the cache.

Errors

there is no error possible yet.

pub async fn get(&self, key: HeaderHash) -> Option<Arc<Ref>>

return a future to get a Ref from the cache

The future returns None if the Ref was not found in the cache. This does not mean the associated block is not in the blockchain storage. It only means it is not in the cache: it has not been seen recently.

Errors

No error possible yet

Trait Implementations

impl Clone for RefCache

fn clone(&self) -> RefCache

Returns a copy of the value.

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

Performs copy-assignment from source.