Trait CachePolicy 

pub trait CachePolicy:
    Debug
    + Send
    + Sync {
    // Required method
    fn find_memory_victim(&self, cnt: usize) -> Vec<EntryID>;

    // Provided methods
    fn find_disk_victim(&self, _cnt: usize) -> Vec<EntryID> { ... }
    fn notify_insert(&self, _entry_id: &EntryID, _batch_type: CachedBatchType) { ... }
    fn notify_access(&self, _entry_id: &EntryID, _batch_type: CachedBatchType) { ... }
    fn notify_remove(&self, _entry_id: &EntryID) { ... }
}

The cache policy that guides the replacement of LiquidCache

Required Methods

fn find_memory_victim(&self, cnt: usize) -> Vec<EntryID>

Give cnt amount of entries to evict when cache is full.

Provided Methods

fn find_disk_victim(&self, _cnt: usize) -> Vec<EntryID>

Give cnt amount of disk entries to remove when disk is full.

fn notify_insert(&self, _entry_id: &EntryID, _batch_type: CachedBatchType)

Notify the cache policy that an entry was inserted.

fn notify_access(&self, _entry_id: &EntryID, _batch_type: CachedBatchType)

Notify the cache policy that an entry was accessed.

fn notify_remove(&self, _entry_id: &EntryID)

Notify the cache policy that an entry was removed.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl CachePolicy for LiquidPolicy