Enum ClientEvent 

pub enum ClientEvent {
    PositiveResponse {
        sid: u8,
        data: Vec<u8, 256>,
    },
    NegativeResponse {
        sid: u8,
        nrc: u8,
    },
    ResponsePending {
        sid: u8,
    },
    Timeout {
        sid: u8,
    },
    PeriodicData {
        did: u8,
        data: Vec<u8, 256>,
    },
    Unsolicited {
        data: Vec<u8, 256>,
    },
}

An observable event emitted by the UDS client.

Events accumulate in the client’s event queue across ticks and are drained by the caller via drain_events(). Each event corresponds to a completed or failed request exchange.

The caller decides what to do with each event - the client never retries, escalates, or takes corrective action autonomously.

Variants

PositiveResponse

A positive response was received for the given service.

sid is the request SID (not the response SID). data contains the response payload bytes after the response SID.

Fields

sid: u8

data: Vec<u8, 256>

NegativeResponse

A negative response was received.

sid is the request SID. nrc is the Negative Response Code byte.

Fields

sid: u8

nrc: u8

ResponsePending

A 0x78 Response Pending NRC was received.

The client has switched to the P2* extended timeout and is still waiting for the final response. This event is emitted once per 0x78 received - the caller can observe how many were received before the final response.

Fields

sid: u8

Timeout

No response was received within the P2 or P2* timeout.

The pending request has been discarded. The caller must decide whether to retry.

Fields

sid: u8

PeriodicData

A periodic data response arrived from the server.

[periodic_data_identifier (1 byte), data_record (n bytes)]

No SID prefix is present - did is the first byte of the frame, which is the low byte of the periodic DID identifier. data contains the data record bytes that followed.

Only emitted for DID low bytes registered via subscribe_periodic

Fields

did: u8

Low byte of the periodic DID identifier.

data: Vec<u8, 256>

Data record bytes

Unsolicited

A response arrived with no matching pending request.

This can occur under fault injection (reordered or delayed responses arriving after a timeout) or if the server sends an unsolicited response.

Fields

data: Vec<u8, 256>

Trait Implementations

impl Clone for ClientEvent

fn clone(&self) -> ClientEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClientEvent

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

Formats the value using the given formatter.

impl Eq for ClientEvent

impl PartialEq for ClientEvent

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ClientEvent