Struct CachedTile 

pub struct CachedTile {
    pub key: TileKey,
    pub data: Vec<u8>,
    pub etag: String,
    pub created_at: u64,
    pub accessed_at: u64,
    pub access_count: u64,
    pub size_bytes: u64,
    pub encoding: TileEncoding,
}

A tile stored in the cache together with its metadata.

Fields

key: TileKey

The tile’s unique key.

data: Vec<u8>

Raw tile bytes.

etag: String

ETag string (quoted FNV-1a hex).

created_at: u64

Unix timestamp when the tile was cached.

accessed_at: u64

Unix timestamp of the most recent access.

access_count: u64

Number of times this tile has been accessed (starts at 1 on creation).

size_bytes: u64

Size of data in bytes.

encoding: TileEncoding

Content-encoding of data.

Implementations

impl CachedTile

pub fn new(key: TileKey, data: Vec<u8>, timestamp: u64) -> Self

Creates a new CachedTile, computing the ETag from data.

pub fn is_stale(&self, max_age_secs: u64, now: u64) -> bool

Returns true if the tile has exceeded max_age_secs since creation.

Trait Implementations

impl Clone for CachedTile

fn clone(&self) -> CachedTile

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CachedTile

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

Formats the value using the given formatter.