Enum SpanKind 

#[non_exhaustive]
pub enum SpanKind {
    Internal,
    Server,
    Client,
    Producer,
    Consumer,
}

A hint about the way a span and its child are linked.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Internal

Internal spans represent operations which do not cross a process boundary.

Server

Server-side handling of an RPC or other remote network request.

Paired with a Client.

Client

A request to some remote service.

Paired with a Server.

Producer

A producer sending a message to a broker.

Paired with a Consumer.

Consumer

A consumer receiving a message from a broker.

Paired with a Producer.

Implementations

impl SpanKind

pub fn try_from_str(s: &str) -> Result<Self, ParseKindError>

Try parse a span kind from a formatted representation.

pub fn as_str(&self) -> &'static str

Get the value of the span kind as a string.

Trait Implementations

impl Clone for SpanKind

fn clone(&self) -> SpanKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpanKind

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

Formats the value using the given formatter.

impl Display for SpanKind

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

Formats the value using the given formatter.

impl FromStr for SpanKind

type Err = ParseKindError

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<'v> FromValue<'v> for SpanKind

fn from_value(value: Value<'v>) -> Option<Self>

Perform the conversion.

impl PartialEq for SpanKind

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

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 ToValue for SpanKind

fn to_value(&self) -> Value<'_>

Perform the conversion.

impl Value for SpanKind

Available on crate feature sval only.

fn stream<'sval, S: Stream<'sval> + ?Sized>( &'sval self, stream: &mut S, ) -> Result

Stream this value through a Stream.

fn tag(&self) -> Option<Tag>

Get the tag of this value, if there is one.

fn to_bool(&self) -> Option<bool>

Try convert this value into a boolean.

fn to_f32(&self) -> Option<f32>

Try convert this value into a 32bit binary floating point number.

fn to_f64(&self) -> Option<f64>

Try convert this value into a 64bit binary floating point number.

fn to_i8(&self) -> Option<i8>

Try convert this value into a signed 8bit integer.

fn to_i16(&self) -> Option<i16>

Try convert this value into a signed 16bit integer.

fn to_i32(&self) -> Option<i32>

Try convert this value into a signed 32bit integer.

fn to_i64(&self) -> Option<i64>

Try convert this value into a signed 64bit integer.

fn to_i128(&self) -> Option<i128>

Try convert this value into a signed 128bit integer.

fn to_u8(&self) -> Option<u8>

Try convert this value into an unsigned 8bit integer.

fn to_u16(&self) -> Option<u16>

Try convert this value into an unsigned 16bit integer.

fn to_u32(&self) -> Option<u32>

Try convert this value into an unsigned 32bit integer.

fn to_u64(&self) -> Option<u64>

Try convert this value into an unsigned 64bit integer.

fn to_u128(&self) -> Option<u128>

Try convert this value into an unsigned 128bit integer.

fn to_text(&self) -> Option<&str>

Try convert this value into a text string.

fn to_binary(&self) -> Option<&[u8]>

Try convert this value into a bitstring.

impl Copy for SpanKind

impl Eq for SpanKind

impl StructuralPartialEq for SpanKind