Module cache 

HTTP caching helpers covering validators, freshness, and revalidation.

Implements parsing of Cache-Control, derivation of freshness metadata, and helpers for ensuring compliant response headers per RFC 9111.

Structs

CacheControl

Represents parsed Cache-Control directives.

CachePolicy

Represents cache policy metadata derived from headers.

Functions

ensure_age_header

Ensure the Age header is set when absent (origin servers should emit Age).

freshness_lifetime

Compute the freshness lifetime hinted by the headers.

parse_cache_control

Parse a Cache-Control header into structured directives.

policy_from_headers

Analyse response headers to produce a CachePolicy.