Trait HeadSampler 

pub trait HeadSampler {
    const ENABLED: bool = true;

    // Required method
    fn should_sample<S>(&self, span: &SpanRef<'_, S>) -> bool
       where S: for<'a> LookupSpan<'a>;
}

A trait that allows customizing which spans are sampled.

Provided Associated Constants

const ENABLED: bool = true

Whether sampling is enabled.

This serves as a compile-time optimization to skip sampling logic when not needed.

Required Methods

fn should_sample<S>(&self, span: &SpanRef<'_, S>) -> bool

where S: for<'a> LookupSpan<'a>,

Determines whether the span and its children should be sampled.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl HeadSampler for AlwaysSample

const ENABLED: bool = false