Struct SamplingMechanism 

pub struct SamplingMechanism { /* private fields */ }

Represents the mechanism that made a sampling decision.

The sampling mechanism identifies which component or rule determined whether a trace should be sampled (kept or rejected).

Implementations

impl SamplingMechanism

pub const fn from_u8(value: u8) -> Self

pub fn into_u8(self) -> u8

pub fn to_priority(self, is_keep: bool) -> SamplingPriority

pub fn to_cow(self) -> Cow<'static, str>

Returns the string representation of the sampling mechanism.

The format is "-N" (e.g. "-4" for manual sampling). The leading - comes from the propagation tags RFC, which initially had a prefix component before the -; that prefix was dropped, but the - was retained as-is for backwards compatibility with existing existing tracers.

Trait Implementations

impl Clone for SamplingMechanism

fn clone(&self) -> SamplingMechanism

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SamplingMechanism

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

Formats the value using the given formatter.

impl Default for SamplingMechanism

fn default() -> SamplingMechanism

Returns the “default value” for a type.

impl Display for SamplingMechanism

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

Formats the value using the given formatter.

impl FromStr for SamplingMechanism

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

Gets the sampling mechanism from it’s string representation.

type Err = ()

The associated error which can be returned from parsing.

impl Hash for SamplingMechanism

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 SamplingMechanism

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

impl Eq for SamplingMechanism

impl StructuralPartialEq for SamplingMechanism