Struct CacheEntry 

pub struct CacheEntry {
    pub key: String,
    pub data: Vec<u8>,
    pub content_type: MediaContentType,
    pub inserted_at: Instant,
    pub last_accessed: Instant,
    pub access_count: u32,
    pub size_bytes: usize,
}

A single entry held in ContentAwareCache.

Fields

key: String

The cache key.

data: Vec<u8>

Raw payload bytes.

content_type: MediaContentType

Media content type (determines priority and TTL).

inserted_at: Instant

Wall-clock time at which this entry was first inserted.

last_accessed: Instant

Wall-clock time of the most recent successful lookup.

access_count: u32

Total number of successful lookups since insertion.

size_bytes: usize

data.len() cached to avoid recomputation.

Implementations

impl CacheEntry

pub fn score_for_eviction(&self) -> f32

Compute the eviction score for this entry using default weights.

A higher score means the entry is a better eviction candidate (i.e. it should be evicted first).

score = (1.0 - recency) × (1.0 / priority) × size_factor

Where:

• recency = e^(-age_secs / 60.0) — exponential decay over 1 minute.
• priority = ContentCachePriority::for_type(content_type).0 cast to f32.
• size_factor = size_bytes / 1_048_576.0 + 1.0 — larger entries score higher (give bigger bang for the eviction buck).

pub fn score_for_eviction_weighted(&self, w: &ScoringWeights) -> f32

Compute the eviction score using configurable ScoringWeights.

score = (1 - recency).powf(w.recency_exp)
      × (1 / priority).powf(w.priority_exp)
      × size_factor.powf(w.size_exp)

Default weights (recency_exp = priority_exp = size_exp = 1.0) reproduce the original behaviour exactly.

Trait Implementations

impl Clone for CacheEntry

fn clone(&self) -> CacheEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheEntry

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

Formats the value using the given formatter.