Struct EventStreamMessage 

pub struct EventStreamMessage {
    pub run_id: String,
    pub event_type: String,
    pub data: Vec<u8>,
    pub trace_id: String,
    pub span_id: String,
    pub project_id: String,
    pub source_timestamp_ns: i64,
    pub worker_id: String,
}

EventStreamMessage carries a single ephemeral event from worker to engine. Used for SSE-only events (tokens, progress, logs, spans) that need real-time delivery but not journal persistence.

Fields

run_id: String

Run this event belongs to

event_type: String

e.g., “output.delta”, “lm.message.delta”, “log.info”

data: Vec<u8>

JSON event payload

trace_id: String

Trace context for correlation

span_id: String

Span context for correlation

project_id: String

Tenant context (for multi-tenant deployments)

source_timestamp_ns: i64

Nanosecond timestamp when event was created at source

worker_id: String

Worker ID for stream ownership validation

Trait Implementations

impl Clone for EventStreamMessage

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 EventStreamMessage

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

Formats the value using the given formatter.

impl Default for EventStreamMessage

fn default() -> Self

Returns the “default value” for a type.

impl Eq for EventStreamMessage

impl Hash for EventStreamMessage

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for EventStreamMessage

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for EventStreamMessage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EventStreamMessage