Struct SpanId

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

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

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 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<(), 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<u64> for SpanId

fn from(value: u64) -> 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, Self: Sized,

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 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 Copy for SpanId

impl Eq for SpanId

impl StructuralPartialEq for SpanId