Trait Cache 

pub trait Cache:
    Debug
    + Send
    + Sync
    + DynClone {
    // Required methods
    fn len(&self) -> usize;
    fn put(&self, key: &CacheKey, signed_packet: &SignedPacket);
    fn get(&self, key: &CacheKey) -> Option<SignedPacket>;

    // Provided methods
    fn capacity(&self) -> usize { ... }
    fn is_empty(&self) -> bool { ... }
    fn get_read_only(&self, key: &CacheKey) -> Option<SignedPacket> { ... }
}

A trait for a SignedPackets cache for Pkarr Client.

Required Methods

fn len(&self) -> usize

Returns the number of SignedPackets in this cache.

fn put(&self, key: &CacheKey, signed_packet: &SignedPacket)

Puts SignedPacket into cache.

fn get(&self, key: &CacheKey) -> Option<SignedPacket>

Reads SignedPacket from cache, while moving it to the head of the LRU list.

Provided Methods

fn capacity(&self) -> usize

Returns the maximum capacity of SignedPackets allowed in this cache.

fn is_empty(&self) -> bool

Returns true if this cache is empty.

fn get_read_only(&self, key: &CacheKey) -> Option<SignedPacket>

Reads SignedPacket from cache, without changing the LRU list.

Used for internal reads that are not initiated by the user directly, like comparing an received signed packet with existing one.

Useful to implement differently from Cache::get, if you are implementing persistent cache where writes are slower than reads.

Otherwise it will just use Cache::get.

Implementors

impl Cache for LmdbCache

impl Cache for InMemoryCache