Enum Event

pub enum Event {
    Metadata(&'static Metadata<'static>),
    Event {
        at: Instant,
        metadata: &'static Metadata<'static>,
        message: String,
        fields: Vec<Field>,
        maybe_parent: Option<Id>,
    },
    NewSpan {
        at: Instant,
        id: Id,
        metadata: &'static Metadata<'static>,
        fields: Vec<Field>,
        maybe_parent: Option<Id>,
    },
    EnterSpan {
        at: Instant,
        thread_id: u64,
        span_id: Id,
    },
    ExitSpan {
        at: Instant,
        thread_id: u64,
        span_id: Id,
    },
    CloseSpan {
        at: Instant,
        span_id: Id,
    },
    SpanRecorded {
        span_id: Id,
        fields: Vec<Field>,
    },
}

Data sent from the Layer to the Aggregator

This is designed to be as cheap to create as possible so the Layer impl remains lightweight.

Variants

Metadata(&'static Metadata<'static>)

The tracing system registered new span or event metadata Metadata is the portion of a data point that remains static.

Event

A new event was emitted. This usually corresponds to a log event.

Fields

at: Instant

metadata: &'static Metadata<'static>

message: String

fields: Vec<Field>

maybe_parent: Option<Id>

NewSpan

A new span was created.

Fields

at: Instant

id: Id

metadata: &'static Metadata<'static>

fields: Vec<Field>

maybe_parent: Option<Id>

EnterSpan

A previously created span was entered.

Fields

at: Instant

thread_id: u64

span_id: Id

ExitSpan

A previously created and entered span was exited.

Fields

at: Instant

thread_id: u64

span_id: Id

CloseSpan

A previously created span has been closed. No new events regarding this particular span will be emitted. NOTE: The span ID that corresponded to this span might be reused!

Fields

at: Instant

span_id: Id

SpanRecorded

Span recorded a new value.

Fields

span_id: Id

fields: Vec<Field>

Trait Implementations

impl Debug for Event

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

Formats the value using the given formatter.