Struct holochain_tracing::Tracer

pub struct Tracer { /* fields omitted */ }

Tracer.

Methods

impl Tracer

pub fn new<S>(sampler: S) -> (Tracer, Receiver<FinishedSpan<SpanContextState>>) where
    S: Sampler<SpanContextState> + Send + Sync + 'static, 

Makes a new Tracer instance with an unbounded channel.

This constructor is mainly for backward compatibility, it has the same interface as in previous versions except the type of SpanReceiver. It builds an unbounded channel which may cause memory issues if there is no reader, prefer with_sender() alternative with a bounded one.

pub fn with_sender<S>(
    sampler: S,
    span_tx: Sender<FinishedSpan<SpanContextState>>
) -> Tracer where
    S: Sampler<SpanContextState> + Send + Sync + 'static, 

Makes a new Tracer instance.

pub fn clone_with_sampler<T>(&self, sampler: T) -> Tracer where
    T: Sampler<SpanContextState> + Send + Sync + 'static, 

Clone with the given sampler.

pub fn span<N>(
    &self,
    operation_name: N
) -> StartSpanOptions<Box<dyn Sampler<SpanContextState> + 'static + Sync + Send>, SpanContextState> where
    N: Into<Cow<'static, str>>, 

Returns StartSpanOptions for starting a span which has the name operation_name.

Trait Implementations

impl Clone for Tracer

fn clone(&self) -> Tracer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Tracer

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

Formats the value using the given formatter.