Struct ObsTraceCtx 

pub struct ObsTraceCtx {
    pub trace_id: String,
    pub span_id: String,
    pub flags: String,
    pub tracestate: String,
}

Parsed W3C trace context.

Fields are stored as the canonical lowercase-hex strings the W3C traceparent header uses. trace_id is 32 hex chars, span_id is 16 hex chars, flags is 2 hex chars (00 = unsampled, 01 = sampled).

Fields

trace_id: String

32-character hex trace id.

span_id: String

16-character hex span id.

flags: String

01 (sampled) or 00.

tracestate: String

Optional tracestate header value (vendor-specific).

Implementations

impl ObsTraceCtx

pub fn sampled(&self) -> bool

True if flags & 0x01 == 1.

pub fn fresh(sampled: bool) -> ObsTraceCtx

Build a fresh context with a new trace id and span id, with the supplied sampling decision. Useful for client-side root spans.

pub fn child_of(&self) -> ObsTraceCtx

Build a child context that inherits the parent trace id and flags, but mints a fresh span id.

Trait Implementations

impl Clone for ObsTraceCtx

fn clone(&self) -> ObsTraceCtx

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ObsTraceCtx

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

Formats the value using the given formatter.

impl Default for ObsTraceCtx

fn default() -> ObsTraceCtx

Returns the “default value” for a type.

impl PartialEq for ObsTraceCtx

fn eq(&self, other: &ObsTraceCtx) -> 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 Eq for ObsTraceCtx

impl StructuralPartialEq for ObsTraceCtx