Struct DiskCache 

pub struct DiskCache { /* private fields */ }

In-memory representation of a .oxcache file.

Implementations

impl DiskCache

pub fn new() -> Self

Create an empty cache.

pub fn add_entry(&mut self, entry: CacheEntry)

Append an entry.

pub fn set_metadata(&mut self, key: impl Into<String>, value: impl Into<String>)

Set a metadata key-value pair.

pub fn get_metadata(&self, key: &str) -> Option<&str>

Look up a metadata value.

pub fn get_entry(&self, name: &str) -> Option<&CacheEntry>

Find an entry by name.

pub fn num_entries(&self) -> usize

Number of entries.

pub fn total_data_bytes(&self) -> usize

Sum of all entry data sizes.

pub fn save(&self, path: &Path) -> Result<(), DiskCacheError>

Save to a file path.

pub fn load(path: &Path) -> Result<Self, DiskCacheError>

Load from a file path.

pub fn write_to<W: Write>(&self, writer: &mut W) -> Result<(), DiskCacheError>

Serialize to an arbitrary writer.

pub fn read_from<R: Read>(reader: &mut R) -> Result<Self, DiskCacheError>

Deserialize from an arbitrary reader.

pub fn is_valid_cache(path: &Path) -> bool

Check if a cache file exists and has valid magic + version.

pub fn is_fresh( cache_path: &Path, source_path: &Path, ) -> Result<bool, DiskCacheError>

Returns Ok(true) if the cache file is newer than the source file.

Trait Implementations

impl Debug for DiskCache

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

Formats the value using the given formatter.

impl Default for DiskCache

fn default() -> Self

Returns the “default value” for a type.