Enum TransportResponse 

pub enum TransportResponse {
    Heartbeat,
    BatchEnd {
        id: RequestId,
    },
    BatchEndDegraded {
        id: RequestId,
    },
    ServerBusy {
        id: RequestId,
    },
    Refused {
        id: RequestId,
        kind: RefusalKind,
        reason: &'static str,
    },
    Challenge {
        nonce: [u8; 32],
    },
    AuthFailed,
    ServerReady,
}

Transport-level response frames that the server runtime encodes directly, bypassing the application’s ResponseEncoder trait.

These are the pipeline-control and auth-handshake messages that every server sends regardless of the application it hosts.

Every frame that ends a request’s reply names the request: the batch terminators, ServerBusy and Refused carry its RequestId.

Variants

Heartbeat

Periodic keep-alive sent to idle connections.

BatchEnd

Marks the end of the response batch for request id, backed as the ack policy in force requires.

Fields

id: RequestId

BatchEndDegraded

Marks the end of the response batch for request id that only the primary’s own disk backs, a weaker guarantee than the ack policy in force. Sent by a primary halted for want of a replica for a request it had sequenced before the halt (or a query that may reflect such requests), once its own journal holds it. A client that needs the policy’s guarantee treats the request as unconfirmed and reconciles.

Fields

id: RequestId

ServerBusy

Request id was shed at ingress: not applied, safe to resend. The connection stays open.

Fields

id: RequestId

Refused

The application’s decoder refused request id: not applied. reason is the decoder’s text, for people; the encoder truncates it to MAX_REFUSAL_REASON bytes on a character boundary.

Fields

id: RequestId

kind: RefusalKind

reason: &'static str

Challenge

Auth handshake: server → client challenge carrying a 32-byte random nonce. Encoded with the node’s client protocol version in front of the nonce.

Fields

nonce: [u8; 32]

AuthFailed

Auth handshake: server → client rejection.

ServerReady

Auth handshake: server → client success.

Trait Implementations

impl Clone for TransportResponse

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for TransportResponse

impl Debug for TransportResponse

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

Formats the value using the given formatter.

impl Eq for TransportResponse

impl PartialEq for TransportResponse

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TransportResponse