Struct TraceId 

pub struct TraceId(pub [u8; 16]);

A 128-bit distributed trace identifier (W3C traceparent compatible).

Tuple Fields

0: [u8; 16]

Implementations

impl TraceId

pub const ZERO: Self

The all-zero sentinel used when no trace is active.

pub fn generate() -> Self

Generate a random, non-zero trace ID.

pub fn from_traceparent(s: &str) -> Option<(TraceId, SpanId, u8)>

Parse a W3C traceparent header value.

Expected format: 00-<32 hex>-<16 hex>-<2 hex>

Returns (trace_id, parent_span_id, flags) on success, None on any malformed input (wrong version, wrong lengths, non-hex chars, wrong field count).

pub fn to_traceparent_header(&self, span_id: SpanId, flags: u8) -> String

Render as a W3C traceparent header value.

Format: 00-<32 lowercase hex>-<16 lowercase hex>-<2 hex flags>

Trait Implementations

impl Clone for TraceId

fn clone(&self) -> TraceId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TraceId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TraceId

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TraceId

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

Formats the value using the given formatter.

impl FromStr for TraceId

type Err = TraceIdParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for TraceId

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 PartialEq for TraceId

fn eq(&self, other: &TraceId) -> 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 TraceId

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TraceId

impl Eq for TraceId

impl StructuralPartialEq for TraceId