Struct SpanId 

pub struct SpanId(/* private fields */);

A 64-bit W3C span identifier, encoded as 16 lowercase hex characters.

The all-zeros value is invalid per the W3C spec and will never be produced by SpanId::new or accepted by SpanId::from_str.

Implementations

impl SpanId

pub fn new() -> Self

Generate a new random SpanId.

use api_bones::traceparent::SpanId;

let id = SpanId::new();
assert!(!id.is_zero());

pub fn from_bytes(bytes: [u8; 8]) -> Option<Self>

Construct from raw bytes.

Returns None if the bytes are all zero (invalid per W3C spec).

pub fn as_bytes(&self) -> &[u8; 8]

Return the raw bytes.

pub fn is_zero(&self) -> bool

Returns true if all bytes are zero.

pub fn to_hex(&self) -> String

Encode as a 16-character lowercase hex string.

Trait Implementations

impl Clone for SpanId

fn clone(&self) -> SpanId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpanId

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

Formats the value using the given formatter.

impl Default for SpanId

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SpanId

Available on crate feature serde only.

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for SpanId

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

Formats the value using the given formatter.

impl FromStr for SpanId

type Err = TraceContextError

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 SpanId

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 SpanId

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

Available on crate feature serde only.

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl Copy for SpanId

impl Eq for SpanId

impl StructuralPartialEq for SpanId