Struct ReadaheadMetadataCache 

pub struct ReadaheadMetadataCache<F: MetadataFetch> { /* private fields */ }

A MetadataFetch implementation that caches fetched data in exponentially growing chunks, sequentially from the beginning of the file.

Implementations

impl<F: MetadataFetch> ReadaheadMetadataCache<F>

pub fn new(inner: F) -> Self

Create a new ReadaheadMetadataCache wrapping the given MetadataFetch

pub fn inner(&self) -> &F

Access the inner MetadataFetch

pub fn with_initial_size(self, initial: u64) -> Self

Set the initial fetch size in bytes, otherwise defaults to 32 KiB

pub fn with_multiplier(self, multiplier: f64) -> Self

Set the multiplier for subsequent fetch sizes, otherwise defaults to 2.0

Trait Implementations

impl<F: Debug + MetadataFetch> Debug for ReadaheadMetadataCache<F>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F: MetadataFetch + Send + Sync> MetadataFetch for ReadaheadMetadataCache<F>

fn fetch<'life0, 'async_trait>( &'life0 self, range: Range<u64>, ) -> Pin<Box<dyn Future<Output = AsyncTiffResult<Bytes>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Return a future that fetches the specified range of bytes asynchronously