Trait MakeSpan 

pub trait MakeSpan<B>:
    Send
    + Sync
    + 'static {
    // Required method
    fn make_span(&self, request: &Request<B>) -> Span;
}

Available on crate feature http only.

Trait used to generate Spans from requests. Trace wraps all request handling in this span.

Required Methods

fn make_span(&self, request: &Request<B>) -> Span

Make a span from a request.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<B> MakeSpan<B> for DefaultMakeSpan

impl<B> MakeSpan<B> for Span

impl<F, B> MakeSpan<B> for F

where F: Fn(&Request<B>) -> Span + Send + Sync + 'static,