Struct concread::arcache::ARCache

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pub struct ARCache<K, V> where
    K: Hash + Eq + Ord + Clone + Debug + Sync + Send + 'static,
    V: Clone + Debug + Sync + Send + 'static,  { /* private fields */ }

Expand description

A concurrently readable adaptive replacement cache. Operations are performed on the cache via read and write operations.

Implementations

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impl<K: Hash + Eq + Ord + Clone + Debug + Sync + Send + 'static, V: Clone + Debug + Sync + Send + 'static> ARCache<K, V>

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pub fn new(
    total: usize,
    threads: usize,
    ex_ro_miss: usize,
    ex_rw_miss: usize,
    read_cache: bool
) -> Self

👎 Deprecated since 0.2.20:

please useARCacheBuilder instead

Use ARCacheBuilder instead

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pub fn new_size(max: usize, read_max: usize) -> Self

👎 Deprecated since 0.2.20:

please useARCacheBuilder instead

Use ARCacheBuilder instead

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pub fn new_size_watermark(max: usize, read_max: usize, watermark: usize) -> Self

👎 Deprecated since 0.2.20:

please useARCacheBuilder instead

Use ARCacheBuilder instead

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pub fn read(&self) -> ARCacheReadTxn<'_, K, V>

Begin a read operation on the cache. This reader has a thread-local cache for items that are localled included via insert, and can communicate back to the main cache to safely include items.

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pub fn write(&self) -> ARCacheWriteTxn<'_, K, V>

Begin a write operation on the cache. This writer has a thread-local store for all items that have been included or dirtied in the transactions, items may be removed from this cache (ie deleted, invalidated).

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pub fn view_stats(&self) -> CowCellReadTxn<CacheStats>

View the statistics for this cache. These values are a snapshot of a point in time and may not be accurate at “this exact moment”. You may pin this value for as long as you wish without causing excess memory usage or transaction cleanup issues.

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pub fn reset_stats(&self)

Reset access stats for this cache. This will reset all the hit and include fields, but values related to current cache state are not altered. This can be useful after a bulk import to prevent polution of the stats from that operation.

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