Struct Span

pub struct Span {
    pub span_id: SpanId,
    pub trace_id: TraceId,
    pub parent_span_id: Option<SpanId>,
    pub same_process_as_parent: Option<bool>,
    pub op: Option<String>,
    pub description: Option<String>,
    pub timestamp: Option<SystemTime>,
    pub start_timestamp: SystemTime,
    pub status: Option<SpanStatus>,
    pub tags: BTreeMap<String, String>,
    pub data: BTreeMap<String, Value>,
}

Represents a tracing span.

Fields

span_id: SpanId

The ID of the span

trace_id: TraceId

Determines which trace the span belongs to.

parent_span_id: Option<SpanId>

Determines the parent of this span, if any.

same_process_as_parent: Option<bool>

Determines whether this span is generated in the same process as its parent, if any.

op: Option<String>

Short code identifying the type of operation the span is measuring.

description: Option<String>

Longer description of the span’s operation, which uniquely identifies the span but is consistent across instances of the span.

timestamp: Option<SystemTime>

The timestamp at the measuring of the span finished.

start_timestamp: SystemTime

The timestamp at the measuring of the span started.

status: Option<SpanStatus>

Describes the status of the span (e.g. ok, cancelled, etc.)

tags: BTreeMap<String, String>

Optional tags to be attached to the span.

data: BTreeMap<String, Value>

Optional extra information to be sent with the span.

Implementations

impl Span

pub fn new() -> Span

Creates a new span with the current timestamp and random id.

pub fn finish(&mut self)

Finalizes the span.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.

impl Default for Span

fn default() -> Span

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Span

fn deserialize<__D>( __deserializer: __D, ) -> Result<Span, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Span

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

Formats the value using the given formatter.

impl PartialEq for Span

fn eq(&self, other: &Span) -> 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 Serialize for Span

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Span