InMemoryDataCache

mountpoint_s3_fs::data_cache

Struct InMemoryDataCache 

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pub struct InMemoryDataCache { /* private fields */ }
Expand description

Simple in-memory (RAM) implementation of DataCache. Recommended for use in testing only.

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impl InMemoryDataCache

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pub fn new(block_size: u64) -> Self

Create a new instance of an InMemoryDataCache with the specified block_size.

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pub fn block_count(&self, cache_key: &ObjectId) -> usize

Get number of caching blocks for the given cache key.

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impl DataCache for InMemoryDataCache

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fn get_block<'life0, 'life1, 'async_trait>( &'life0 self, cache_key: &'life1 ObjectId, block_idx: BlockIndex, block_offset: u64, _object_size: usize, ) -> Pin<Box<dyn Future<Output = DataCacheResult<Option<ChecksummedBytes>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Get block of data from the cache for the given ObjectId and BlockIndex, if available. Read more
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fn put_block<'life0, 'async_trait>( &'life0 self, cache_key: ObjectId, block_idx: BlockIndex, block_offset: u64, bytes: ChecksummedBytes, _object_size: usize, ) -> Pin<Box<dyn Future<Output = DataCacheResult<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Put block of data to the cache for the given ObjectId and BlockIndex.
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fn block_size(&self) -> u64

Returns the block size for the data cache.

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