Struct TraceEvent 

pub struct TraceEvent {

    pub seq: Seq,
    pub ts_mono_ns: u64,
    pub ts_wall_ns: u64,
    pub thread_id: u64,
    pub process_id: u64,
    pub scope: Scope,
    pub kind: EventKind,
    pub phase: Phase,
    pub span_id: Option<SpanId>,
    pub request_id: Option<RequestId>,
    pub causes: Vec<u64>,
    pub resource: Option<ResourceRef>,
    pub payload: Payload,
    pub cost_estimate_ns: Option<u64>,
    pub confidence: Option<f32>,
}

A single captured event.

Events are correlated through:

• seq — global monotonic order;
• span_id — pairs a Begin with its End;
• request_id — groups events belonging to one logical request (an asset load, a frame, a scene transition);
• causes — explicit causal links to earlier event seqs (the semantic causal graph, KatraProfiler §6).

Fields

seq: Seq

Global monotonic sequence number.

ts_mono_ns: u64

Monotonic timestamp in ns (relative to profiler start).

ts_wall_ns: u64

Wall-clock timestamp in ns since the Unix epoch.

thread_id: u64

Kernel thread id.

process_id: u64

Process id.

scope: Scope

Producing layer.

kind: EventKind

Event kind.

phase: Phase

Phase.

span_id: Option<SpanId>

Span id (for Begin/End pairing); None for standalone events.

request_id: Option<RequestId>

Correlated request id; None if not part of a request.

causes: Vec<u64>

Explicit causal links to earlier event seqs.

resource: Option<ResourceRef>

Optional resource reference (domain, id).

payload: Payload

Structured payload.

cost_estimate_ns: Option<u64>

Estimated/measured cost in ns (for aggregation).

confidence: Option<f32>

Prediction confidence 0..1, when the event is a prediction.

Implementations

impl TraceEvent

pub fn instant( seq: Seq, ts_mono_ns: u64, ts_wall_ns: u64, thread_id: u64, process_id: u64, scope: Scope, kind: EventKind, payload: Payload, ) -> Self

A convenience constructor for a minimal Instant event.

Trait Implementations

impl Clone for TraceEvent

fn clone(&self) -> TraceEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TraceEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TraceEvent

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TraceEvent

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for TraceEvent

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for TraceEvent