Struct BlobCacheConfig 

pub struct BlobCacheConfig { /* private fields */ }

Configures one persistent crate::BlobCache.

The directory contains cache-owned files and must not be shared with unrelated data. The byte limit bounds admitted payloads. Frequency counters tune admission accuracy; pass 0 to use the default of 10,000.

Implementations

impl BlobCacheConfig

pub fn new( directory: impl Into<PathBuf>, max_bytes: i64, frequency_counters: i64, ) -> Result<Self, BlobCacheError>

Validates and creates a cache configuration.

Arguments

• directory - Cache-owned filesystem directory.
• max_bytes - Positive maximum number of payload bytes admitted to the cache.
• frequency_counters - Admission-policy counters, or 0 for the 10,000 default.

Errors

Returns BlobCacheError::InvalidConfig when the directory is empty, the byte limit is not positive, the counter count is negative, or the count cannot fit in usize.

Examples

use dex_blob_cache::BlobCacheConfig;

let config = BlobCacheConfig::new("/tmp/dex-blobs", 64 * 1024 * 1024, 0)?;
assert_eq!(config.max_bytes(), 64 * 1024 * 1024);
assert_eq!(config.frequency_counters(), 10_000);

pub fn directory(&self) -> &Path

Returns the cache-owned filesystem directory.

pub fn max_bytes(&self) -> i64

Returns the maximum admitted payload bytes.

pub fn frequency_counters(&self) -> usize

Returns the admission-policy frequency counter count.

Trait Implementations

impl Clone for BlobCacheConfig

fn clone(&self) -> BlobCacheConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BlobCacheConfig

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

Formats the value using the given formatter.