Struct opentelemetry::trace::SpanId

pub struct SpanId(_);

Available on crate feature trace only.

An 8-byte value which identifies a given span.

The id is valid if it contains at least one non-zero byte.

Implementations

impl SpanId

Helper to create span ids for testing

pub fn from_u64(num: u64) -> SpanId

impl SpanId

pub const INVALID: SpanId = SpanId(0)

Invalid span id

pub const fn from_bytes(bytes: [u8; 8]) -> SpanId

Create a span id from its representation as a byte array.

pub const fn to_bytes(self) -> [u8; 8]

Return the representation of this span id as a byte array.

pub fn from_hex(hex: &str) -> Result<SpanId, ParseIntError>

Converts a string in base 16 to a span id.

Examples

use opentelemetry_api::trace::SpanId;

assert!(SpanId::from_hex("42").is_ok());
assert!(SpanId::from_hex("58406520a0066491").is_ok());

assert!(SpanId::from_hex("not_hex").is_err());

Trait Implementations

impl Clone for SpanId

fn clone(&self) -> SpanId

Returns a copy 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<(), Error>

Formats the value using the given formatter.

impl Display for SpanId

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

Formats the value using the given formatter.

impl From<[u8; 8]> for SpanId

fn from(bytes: [u8; 8]) -> SpanId

Converts to this type from the input type.

impl Hash for SpanId

fn hash<__H>(&self, state: &mut __H)where
    __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where
    H: Hasher,

Feeds a slice of this type into the given Hasher.

impl LowerHex for SpanId

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

Formats the value using the given formatter.

impl PartialEq<SpanId> for SpanId

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SpanId

impl Eq for SpanId

impl StructuralEq for SpanId

impl StructuralPartialEq for SpanId