Struct ResponseMetadata 

pub struct ResponseMetadata {
    pub status: Status,
    pub version: Option<Version>,
    pub fields: Fields,
    pub content_length: Option<u64>,
    pub persistent: Option<bool>,
    pub protocol: Option<Protocol>,
}

Informational and final responses share the same metadata. Protocol/responder capabilities sequence heads; upgrades and CONNECT use bidirectional bodies, with resource lifecycle retained by the exchange/driver.

Fields

status: Status

version: Option<Version>

fields: Fields

content_length: Option<u64>

Declared representation length, independent of whether this message has readable data (for example HEAD and 304 responses).

persistent: Option<bool>

Outgoing connection reuse preference. Received hop-specific decisions are retained by the protocol exchange, rather than forwarded as fields.

protocol: Option<Protocol>

Implementations

impl ResponseMetadata

pub fn new(status: Status) -> Self

pub fn declared_length(&self, body: Option<u64>) -> Option<u64>

The declared content_length, unless a body of the given known length contradicts it, as after replacing the body. A codec sending this response’s data uses it; a response without data, to HEAD or with 204 or 304, is described by content_length itself, so every protocol resolves the same length.

Trait Implementations

impl Clone for ResponseMetadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResponseMetadata

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

Formats the value using the given formatter.