Struct ImageCacheReader 

pub struct ImageCacheReader { /* private fields */ }

Read-only handle for image files. Clone only bumps Arc counters; clones share the same read pool and may be used from many threads.

Implementations

impl ImageCacheReader

pub fn as_session(config: ImageCacheConfig) -> Result<Self>

pub fn onetime(location: DbLocation) -> Result<Self>

pub fn lookup(&self, path: &Path) -> Result<LookupResult<ImageCacheEntry>>

pub fn lookup_all( &self, paths: &[&Path], ) -> Vec<(PathBuf, Result<LookupResult<ImageCacheEntry>>)>

Batch variant of lookup, parallelized with rayon over the read pool’s connections.

pub fn check(&self, path: &Path) -> Result<bool>

pub fn list_paths(&self) -> Result<Vec<String>>

pub fn all(&self) -> Result<Vec<Result<ImageCacheEntry>>>

pub fn summarize_by_dir(&self) -> Result<Vec<DirCacheSummary>>

Group all cached entries by their parent directory and aggregate count, total size, and the newest cached-at timestamp (RFC 004). Cheap: enumerates entry metadata without decoding payloads.

pub fn all_in_dir(&self, path: &Path) -> Result<Vec<Result<ImageCacheEntry>>>

Return all entries whose file lives directly inside path.

If path is a file rather than a directory (the common call-site pattern: “find all entries in the same directory as this file”), its parent directory is used automatically.

pub fn all_in_dir_and_sub_dirs( &self, path: &Path, ) -> Result<Vec<Result<ImageCacheEntry>>>

Return all entries whose file lives anywhere under path (recursively).

If path is a file, its parent directory is used automatically.

Trait Implementations

impl CacheRead for ImageCacheReader

fn check(&self, path: &Path) -> Result<bool>

true when the cache entry for path exists and is fresh.

fn check_all(&self, paths: &[&Path]) -> Vec<(PathBuf, Result<bool>)>

Batch variant of check, parallelized.

fn list_paths(&self) -> Result<Vec<String>>

Canonicalized paths of every registered entry.

impl Clone for ImageCacheReader

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.