[−][src]Trait ipfs_sqlite_block_store::cache::CacheTracker

pub trait CacheTracker: Debug + Send {
    pub fn blocks_accessed(&mut self, blocks: Vec<BlockInfo>) { ... }

    pub fn blocks_written(&mut self, blocks: Vec<BlockInfo>) { ... }

    pub fn delete_ids(&mut self, ids: &[i64]) { ... }

    pub fn sort_ids(&self, ids: &mut [i64]) { ... }

    pub fn retain_ids(&mut self, ids: &[i64]) { ... }
}

tracks block reads and writes to provide info about which blocks to evict from the LRU cache

Provided methods

pub fn blocks_accessed(&mut self, blocks: Vec<BlockInfo>)[src]

called whenever blocks were accessed

note that this method will be called very frequently, on every block access. it is fire and forget, so it is perfectly ok to offload the writing to another thread.

pub fn blocks_written(&mut self, blocks: Vec<BlockInfo>)[src]

called whenever blocks were written

note that this method will be called frequently, on every block write. it is fire and forget, so it is perfectly ok to offload the writing to another thread.

pub fn delete_ids(&mut self, ids: &[i64])[src]

notification that these ids no longer have to be tracked

this will be called from inside gc

pub fn sort_ids(&self, ids: &mut [i64])[src]

sort ids by importance. More important ids should go to the end.

this will be called from inside gc

pub fn retain_ids(&mut self, ids: &[i64])[src]

notification that only these ids should be retained

this will be called once during startup

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Implementations on Foreign Types

impl CacheTracker for Box<dyn CacheTracker>[src]

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Implementors

impl CacheTracker for NoopCacheTracker[src]

impl CacheTracker for SortByIdCacheTracker[src]

impl<F> CacheTracker for SqliteCacheTracker<F> where
    F: Fn(i64, BlockInfo) -> Option<i64> + Send, [src]

impl<S, T> CacheTracker for AsyncCacheTracker<S, T> where
    S: Spawner,
    T: CacheTracker + Send + 'static, [src]

impl<T, F> CacheTracker for InMemCacheTracker<T, F> where
    T: Ord + Clone + Debug + Send,
    F: Fn(Duration, BlockInfo) -> Option<T> + Send, [src]

pub fn blocks_accessed(&mut self, blocks: Vec<BlockInfo>)[src]

called whenever blocks were accessed

pub fn delete_ids(&mut self, ids: &[i64])[src]

notification that these ids no longer have to be tracked

pub fn retain_ids(&mut self, ids: &[i64])[src]

notification that only these ids should be retained

pub fn sort_ids(&self, ids: &mut [i64])[src]

sort ids by importance. More important ids should go to the end.

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