Struct DiskCache 

pub(crate) struct DiskCache {
    path: PathBuf,
    max_size: usize,
    inner: Mutex<DiskCacheInner>,
}

A struct representing the disk cache.

Fields

path: PathBuf

max_size: usize

inner: Mutex<DiskCacheInner>

Implementations

impl DiskCache

pub(crate) fn new( cache_assignment: HttpCacheAssignment, ) -> (Option<Arc<DiskCache>>, MemoryCacheLifecycle)

Creates a new DiskCache if the preference if set. Creates the sqlite table if it does not exist and starts the db connection. TODO: Implement WAL and other sqlite pragma.

pub(crate) async fn get( &self, key: CacheKey, ) -> Option<Arc<TokioRwLock<Vec<CachedResource>>>>

Restores a cache entry from the disk if it exists. Deletes the entry from the disk cache

pub(crate) async fn store( &self, key: CacheKey, entry: Arc<RwLock<Vec<CachedResource>>>, )

Stores a CacheEntry` to disk.

async fn delete_until_cache_size(&self)

Deletes data from the cache until the size is <= max_size

fn get_disk_cache_total_size(&self, conn: &Connection) -> Option<usize>

Queries the current disk cache size from the sql database.

pub(crate) fn clear(&self)

Clears the disk cache. Should only be called in sync context and will panic.

Trait Implementations

impl MallocSizeOf for DiskCache

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.