Enum tarpc::trace::SamplingDecision

#[repr(u8)]
pub enum SamplingDecision {
    Sampled,
    Unsampled,
}

Indicates whether a sampler has decided whether or not to sample the trace associated with the Context. Downstream samplers do not need to abide by “no sample” decisions–for example, an upstream client may choose to never sample, which may not make sense for the client’s dependencies. On the other hand, if an upstream process has chosen to sample this trace, then the downstream samplers are expected to respect that decision and also sample the trace. Otherwise, the full trace would not be able to be reconstructed reliably.

Variants

Sampled

The associated span was sampled by its creating process. Child spans must also be sampled.

Unsampled

The associated span was not sampled by its creating process.

Trait Implementations

impl Clone for SamplingDecision

fn clone(&self) -> SamplingDecision

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SamplingDecision

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

Formats the value using the given formatter.

impl Default for SamplingDecision

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SamplingDecision

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl From<&'_ SpanContext> for SamplingDecision

fn from(context: &SpanContext) -> Self

Performs the conversion.

impl From<SamplingDecision> for TraceFlags

fn from(decision: SamplingDecision) -> Self

Performs the conversion.

impl Hash for SamplingDecision

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, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<SamplingDecision> for SamplingDecision

fn eq(&self, other: &SamplingDecision) -> 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 !=.

impl Serialize for SamplingDecision

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl Copy for SamplingDecision

impl Eq for SamplingDecision

impl StructuralEq for SamplingDecision

impl StructuralPartialEq for SamplingDecision