Trait ipfs_sqlite_block_store::cache::CacheTracker [−][src]
tracks block reads and writes to provide info about which blocks to evict from the LRU cache
Provided methods
fn blocks_accessed(&self, blocks: Vec<BlockInfo>)
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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.
fn blocks_written(&self, blocks: Vec<WriteInfo>)
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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.
fn blocks_deleted(&self, blocks: Vec<BlockInfo>)
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called whenever blocks have been deleted by gc.
fn sort_ids(&self, ids: &mut [i64])
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sort ids by importance. More important ids should go to the end.
this will be called from inside gc
fn retain_ids(&self, ids: &[i64])
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notification that only these ids should be retained
this will be called once during startup
Implementations on Foreign Types
impl CacheTracker for Box<dyn CacheTracker>
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fn blocks_accessed(&self, blocks: Vec<BlockInfo>)
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fn blocks_written(&self, blocks: Vec<WriteInfo>)
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fn sort_ids(&self, ids: &mut [i64])
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fn blocks_deleted(&self, blocks: Vec<BlockInfo>)
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fn retain_ids(&self, ids: &[i64])
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Implementors
impl CacheTracker for NoopCacheTracker
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impl CacheTracker for SortByIdCacheTracker
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impl<F> CacheTracker for SqliteCacheTracker<F> where
F: Fn(i64, BlockInfo) -> Option<i64> + Send,
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F: Fn(i64, BlockInfo) -> Option<i64> + Send,
fn blocks_accessed(&self, blocks: Vec<BlockInfo>)
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fn blocks_deleted(&self, blocks: Vec<BlockInfo>)
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fn retain_ids(&self, ids: &[i64])
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fn sort_ids(&self, ids: &mut [i64])
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impl<S, T> CacheTracker for AsyncCacheTracker<S, T> where
S: Spawner,
T: CacheTracker + Send + 'static,
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S: Spawner,
T: CacheTracker + Send + 'static,
fn blocks_accessed(&self, blocks: Vec<BlockInfo>)
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fn blocks_written(&self, blocks: Vec<WriteInfo>)
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fn blocks_deleted(&self, blocks: Vec<BlockInfo>)
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fn retain_ids(&self, ids: &[i64])
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fn sort_ids(&self, ids: &mut [i64])
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impl<T, F> CacheTracker for InMemCacheTracker<T, F> where
T: Ord + Clone + Debug + Send,
F: Fn(Duration, BlockInfo) -> Option<T> + Send,
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T: Ord + Clone + Debug + Send,
F: Fn(Duration, BlockInfo) -> Option<T> + Send,
fn blocks_accessed(&self, blocks: Vec<BlockInfo>)
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called whenever blocks were accessed
fn blocks_deleted(&self, blocks: Vec<BlockInfo>)
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notification that these ids no longer have to be tracked
fn retain_ids(&self, ids: &[i64])
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notification that only these ids should be retained
fn sort_ids(&self, ids: &mut [i64])
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sort ids by importance. More important ids should go to the end.